/* roulang page: index */
:root{
  --c-primary:#6C3BFF;
  --c-primary-deep:#4A21D1;
  --c-accent:#00E0C6;
  --c-hot:#FF6B2C;
  --c-ink:#171233;
  --c-body:#4A4763;
  --c-muted:#8A86A3;
  --c-bg:#F6F5FB;
  --c-surface:#FFFFFF;
  --c-line:#E7E4F2;
  --c-dark:#14102B;
  --c-success:#12B76A;
  --c-danger:#F04438;
  --c-hot-tag:#FF3D71;
  --g-kv:linear-gradient(135deg,#14102B 0%,#241A5C 55%,#0E2E3A 100%);
  --g-cta:linear-gradient(135deg,#FF6B2C,#6C3BFF);
  --r-card:18px;
  --r-sm:12px;
  --r-pill:999px;
  --sh-1:0 10px 30px rgba(23,18,51,.08);
  --sh-2:0 18px 46px rgba(108,59,255,.18);
  --sh-nav:0 2px 12px rgba(23,18,51,.05);
  --font-cn:"HarmonyOS Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-num:"Chakra Petch","Barlow","HarmonyOS Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  color:var(--c-body);
  background:var(--c-bg);
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:var(--c-primary);text-decoration:none;transition:color .22s ease}
a:hover{color:var(--c-primary-deep)}
h1,h2,h3,h4{color:var(--c-ink);margin:0;line-height:1.3;font-weight:700}
h1{font-size:48px;line-height:1.15;letter-spacing:-.4px}
h2{font-size:34px}
h3{font-size:22px;line-height:1.45}
h4{font-size:17px}
p{margin:0 0 16px}
ul,ol{margin:0;padding:0;list-style:none}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
:focus-visible{outline:3px solid rgba(108,59,255,.35);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.num{font-family:var(--font-num);letter-spacing:.5px}

/* ============ HEADER ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:#fff;
  border-bottom:1px solid var(--c-line);
  box-shadow:var(--sh-nav);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(23,18,51,.10)}
.header-inner{
  display:flex;align-items:center;gap:28px;
  height:76px;
}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{
  width:26px;height:26px;border-radius:8px;
  background:linear-gradient(135deg,#00E0C6,#6C3BFF);
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 16px rgba(0,224,198,.35);
}
.brand-mark span{
  width:12px;height:12px;border:2.4px solid #fff;border-radius:4px;
  border-top-color:transparent;display:block;
}
.brand-text{
  font-size:19px;font-weight:700;color:var(--c-ink);
  letter-spacing:-.2px;white-space:nowrap;
}
.brand:hover .brand-text{color:var(--c-primary-deep)}
.main-nav{display:flex;align-items:center;gap:4px;flex:1}
.main-nav a{
  position:relative;
  padding:9px 14px;
  font-size:16px;
  color:var(--c-body);
  border-radius:10px;
  white-space:nowrap;
  transition:.22s ease;
}
.main-nav a:hover{color:var(--c-primary);background:#F6F5FB}
.main-nav a.active{color:var(--c-primary);font-weight:700}
.main-nav a.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  background:var(--c-accent);border-radius:2px;
}
.header-tools{display:flex;align-items:center;gap:14px;flex-shrink:0}
.search-box{
  position:relative;display:flex;align-items:center;
  height:42px;width:206px;border-radius:var(--r-pill);
  background:#F6F5FB;border:1px solid transparent;
  transition:.22s ease;
}
.search-box:focus-within{border-color:var(--c-primary);background:#fff;box-shadow:0 0 0 4px rgba(108,59,255,.12)}
.search-box svg{width:16px;height:16px;margin:0 8px 0 15px;flex-shrink:0;stroke:var(--c-muted)}
.search-box input{
  border:0;background:transparent;outline:none;
  width:100%;height:100%;padding-right:15px;font-size:14px;color:var(--c-ink);
}
.search-box input::placeholder{color:var(--c-muted)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:16px;font-weight:700;line-height:1;
  border-radius:var(--r-sm);
  padding:15px 30px;
  transition:transform .22s ease,box-shadow .22s ease,filter .22s ease,background .22s ease;
  text-align:center;
}
.btn-primary{background:var(--g-cta);color:#fff;box-shadow:0 8px 22px rgba(255,107,44,.26)}
.btn-primary:hover{color:#fff;filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 12px 28px rgba(255,107,44,.32)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{background:#fff;color:var(--c-primary);border:1.5px solid var(--c-primary)}
.btn-outline:hover{background:rgba(108,59,255,.08);color:var(--c-primary-deep);transform:translateY(-2px)}
.btn-ghost-dark{background:transparent;color:#fff;border:1.5px solid var(--c-accent)}
.btn-ghost-dark:hover{background:rgba(0,224,198,.12);color:#fff;transform:translateY(-2px)}
.btn-sm{padding:11px 20px;font-size:14px;border-radius:10px}
.btn-block{width:100%}
.btn[disabled]{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}
.link-more{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--c-primary)}
.link-more span{transition:transform .22s ease}
.link-more:hover span{transform:translateX(4px)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;background:#F6F5FB;
  align-items:center;justify-content:center;
}
.nav-toggle i{display:block;width:18px;height:2px;background:var(--c-ink);border-radius:2px;position:relative}
.nav-toggle i::before,.nav-toggle i::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-ink);border-radius:2px}
.nav-toggle i::before{top:-6px}
.nav-toggle i::after{top:6px}

/* ============ DRAWER ============ */
.drawer-mask{
  position:fixed;inset:0;background:rgba(20,16,43,.55);
  opacity:0;visibility:hidden;transition:.28s ease;z-index:90;
}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:308px;max-width:86vw;
  background:#fff;z-index:91;padding:24px;
  transform:translateX(100%);transition:transform .3s cubic-bezier(.3,.8,.4,1);
  overflow-y:auto;
}
body.drawer-open .drawer{transform:translateX(0)}
body.drawer-open .drawer-mask{opacity:1;visibility:visible}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.drawer-close{width:40px;height:40px;border-radius:12px;background:#F6F5FB;color:var(--c-ink);font-size:20px;line-height:1}
.drawer-nav{display:flex;flex-direction:column;gap:6px;margin-bottom:22px}
.drawer-nav a{padding:13px 14px;border-radius:12px;color:var(--c-ink);font-weight:600;background:#F6F5FB}
.drawer-nav a:hover,.drawer-nav a.active{background:#F1EDFF;color:var(--c-primary-deep)}
.drawer .search-box{width:100%;margin-bottom:16px}

/* ============ HERO ============ */
.hero{position:relative;background:var(--g-kv);color:#fff;overflow:hidden;padding:80px 0 92px}
.hero-media{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  opacity:.55;
}
.hero-veil{position:absolute;inset:0;background:rgba(20,16,43,.78)}
.hero-grid{
  position:absolute;inset:0;opacity:.35;
  background-image:linear-gradient(rgba(255,255,255,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.07) 1px,transparent 1px);
  background-size:46px 46px;
  mask-image:radial-gradient(ellipse at 30% 20%,#000 0%,transparent 72%);
  -webkit-mask-image:radial-gradient(ellipse at 30% 20%,#000 0%,transparent 72%);
}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.12fr .88fr;gap:52px;align-items:center}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 15px;border-radius:var(--r-pill);
  background:rgba(0,224,198,.14);border:1px solid rgba(0,224,198,.42);
  color:#8CFFF1;font-size:13px;font-weight:600;margin-bottom:22px;
}
.hero-badge i{width:7px;height:7px;border-radius:50%;background:var(--c-accent);box-shadow:0 0 0 4px rgba(0,224,198,.22);display:block}
.hero h1{color:#fff;max-width:640px}
.hero h1 em{font-style:normal;background:linear-gradient(90deg,#00E0C6,#FF6B2C);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{
  margin:20px 0 26px;font-size:17px;line-height:1.85;color:rgba(255,255,255,.78);
  max-width:560px;
}
.hero-pills{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:30px}
.pill{
  display:flex;align-items:center;gap:9px;
  padding:11px 17px;border-radius:14px;
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.12);
  font-size:13.5px;color:rgba(255,255,255,.88);
}
.pill b{font-family:var(--font-num);color:var(--c-accent);font-size:15px;font-weight:700}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.hero-visual{position:relative}
.hero-visual .frame{
  position:relative;border-radius:20px;overflow:hidden;
  border:1px solid rgba(255,255,255,.14);
  box-shadow:0 28px 60px rgba(0,0,0,.42);
  aspect-ratio:16/11;
}
.hero-visual .frame img{width:100%;height:100%;object-fit:cover}
.hero-visual .float-card{
  position:absolute;left:-18px;bottom:-22px;
  background:#fff;color:var(--c-ink);border-radius:16px;padding:16px 20px;
  box-shadow:0 20px 44px rgba(0,0,0,.32);
  display:flex;align-items:center;gap:14px;min-width:212px;
}
.hero-visual .float-card strong{display:block;font-family:var(--font-num);font-size:22px;color:var(--c-primary);line-height:1.2}
.hero-visual .float-card span{font-size:12.5px;color:var(--c-muted)}
.hero-visual .dot-ring{
  width:38px;height:38px;border-radius:50%;flex-shrink:0;
  background:conic-gradient(var(--c-accent) 0 72%,#EDEBF6 72% 100%);
  display:flex;align-items:center;justify-content:center;
}
.hero-visual .dot-ring i{width:22px;height:22px;border-radius:50%;background:#fff;display:block}

/* ============ SECTION BASE ============ */
.section{padding:88px 0}
.section.tight{padding:64px 0}
.section-head{margin-bottom:32px;max-width:760px}
.section-head .eyebrow{
  display:inline-block;font-family:var(--font-num);font-size:13px;font-weight:700;
  letter-spacing:1.6px;text-transform:uppercase;color:var(--c-primary);
  background:#F1EDFF;border-radius:var(--r-pill);padding:5px 13px;margin-bottom:14px;
}
.section-head h2{margin-bottom:12px}
.section-head p{color:var(--c-muted);margin:0;font-size:16px}
.section-head.row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  height:25px;padding:0 12px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:600;
  background:#F1EDFF;color:var(--c-primary-deep);
}
.tag.hot{background:rgba(255,61,113,.12);color:var(--c-hot-tag)}
.tag.live{background:rgba(18,183,106,.12);color:var(--c-success)}
.tag.soon{background:rgba(255,107,44,.14);color:#D9521A}

/* ============ TIMELINE ============ */
.timeline{position:relative;max-width:980px;margin:0 auto}
.timeline::before{
  content:"";position:absolute;left:50%;top:6px;bottom:6px;width:2px;
  background:linear-gradient(180deg,transparent,var(--c-line) 8%,var(--c-line) 92%,transparent);
  transform:translateX(-50%);
}
.tl-item{position:relative;width:50%;padding:0 44px 30px 0}
.tl-item:nth-child(even){margin-left:50%;padding:0 0 30px 44px}
.tl-item:last-child{padding-bottom:0}
.tl-card{
  background:#fff;border-radius:var(--r-card);padding:22px 24px;
  box-shadow:var(--sh-1);border:1px solid var(--c-line);
  transition:transform .3s ease,box-shadow .3s ease;
}
.tl-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.tl-time{font-family:var(--font-num);font-size:14px;font-weight:700;color:var(--c-primary);letter-spacing:1px}
.tl-card h3{margin:8px 0 8px;font-size:19px}
.tl-card p{margin:0 0 12px;font-size:14.5px;color:var(--c-muted);line-height:1.75}
.tl-item::after{
  content:"";position:absolute;top:30px;right:-8px;width:14px;height:14px;border-radius:50%;
  background:var(--c-accent);box-shadow:0 0 0 4px rgba(0,224,198,.28);
}
.tl-item:nth-child(even)::after{left:-8px;right:auto}

/* ============ BENTO ============ */
.bento{display:grid;grid-template-columns:repeat(6,1fr);gap:20px}
.bento-card{
  position:relative;background:#fff;border-radius:var(--r-card);padding:26px;
  border:1px solid var(--c-line);box-shadow:var(--sh-1);
  display:flex;flex-direction:column;gap:12px;
  transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
  overflow:hidden;
}
.bento-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(108,59,255,.28)}
.bento-card.b-lg{grid-column:span 3;flex-direction:row;align-items:center;gap:24px}
.bento-card.b-sm{grid-column:span 2}
.bento-icon{
  width:52px;height:52px;border-radius:14px;flex-shrink:0;
  background:#F1EDFF;display:flex;align-items:center;justify-content:center;
}
.bento-icon svg{width:26px;height:26px;stroke:var(--c-primary-deep);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.bento-card.b-lg .bento-thumb{
  width:230px;aspect-ratio:16/9;border-radius:14px;overflow:hidden;flex-shrink:0;background:#EDEBF6;
}
.bento-card.b-lg .bento-thumb img{width:100%;height:100%;object-fit:cover}
.bento-card h3{font-size:20px}
.bento-card p{margin:0;font-size:14.5px;color:var(--c-muted);line-height:1.75}
.bento-body{flex:1;min-width:0}
.bento-flag{
  position:absolute;top:16px;right:16px;
  font-size:12px;font-weight:700;color:#fff;background:var(--c-hot-tag);
  border-radius:var(--r-pill);padding:4px 11px;
}
.bento-link{font-size:14px;font-weight:600;display:inline-flex;gap:6px;align-items:center}

/* ============ PLAN ============ */
.plan-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:end}
.plan{
  background:#fff;border-radius:var(--r-card);padding:30px 26px;
  border:1px solid var(--c-line);box-shadow:var(--sh-1);
  display:flex;flex-direction:column;transition:transform .3s ease,box-shadow .3s ease;
}
.plan:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.plan.featured{
  border:2px solid var(--c-primary);transform:translateY(-14px);
  box-shadow:0 24px 54px rgba(108,59,255,.20);
  position:relative;
}
.plan.featured:hover{transform:translateY(-18px)}
.plan-flag{
  position:absolute;top:-14px;left:50%;transform:translateX(-50%);
  background:var(--g-cta);color:#fff;font-size:12.5px;font-weight:700;
  padding:5px 16px;border-radius:var(--r-pill);white-space:nowrap;
}
.plan h3{font-size:21px;margin-bottom:6px}
.plan .plan-desc{font-size:14px;color:var(--c-muted);margin-bottom:20px}
.plan .plan-price{
  font-family:var(--font-num);font-size:30px;font-weight:700;color:var(--c-ink);
  line-height:1.2;margin-bottom:22px;
}
.plan .plan-price small{font-size:13px;font-family:var(--font-cn);color:var(--c-muted);font-weight:400;margin-left:6px}
.plan ul{display:flex;flex-direction:column;gap:12px;margin-bottom:26px;flex:1}
.plan li{display:flex;gap:10px;font-size:14.5px;line-height:1.7;align-items:flex-start}
.plan li i{
  width:18px;height:18px;border-radius:50%;flex-shrink:0;margin-top:4px;
  display:flex;align-items:center;justify-content:center;font-size:11px;font-style:normal;
}
.plan li i.yes{background:rgba(18,183,106,.14);color:var(--c-success)}
.plan li i.no{background:rgba(138,134,163,.16);color:var(--c-muted)}
.plan li.off{color:var(--c-muted)}

/* ============ SIGNUP CTA ============ */
.signup{position:relative;background:var(--g-kv);color:#fff;padding:80px 0;overflow:hidden}
.signup::before{
  content:"";position:absolute;inset:0;opacity:.5;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
}
.signup::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:52px 52px;
  mask-image:radial-gradient(ellipse at 78% 40%,#000 0%,transparent 70%);
  -webkit-mask-image:radial-gradient(ellipse at 78% 40%,#000 0%,transparent 70%);
}
.signup-inner{position:relative;z-index:2;display:grid;grid-template-columns:1fr 1.05fr;gap:56px;align-items:center}
.signup h2{color:#fff;font-size:33px;margin-bottom:14px}
.signup p.lead{color:rgba(255,255,255,.76);max-width:460px;margin-bottom:26px}
.signup-points{display:flex;flex-direction:column;gap:13px;margin-bottom:30px}
.signup-points li{display:flex;align-items:center;gap:11px;font-size:14.5px;color:rgba(255,255,255,.86)}
.signup-points i{
  width:20px;height:20px;border-radius:6px;background:rgba(0,224,198,.18);
  color:var(--c-accent);display:flex;align-items:center;justify-content:center;font-size:12px;font-style:normal;flex-shrink:0;
}
.form-card{
  background:#fff;border-radius:20px;padding:32px;
  box-shadow:0 28px 60px rgba(0,0,0,.34);
}
.form-card h3{font-size:21px;margin-bottom:6px}
.form-card .form-tip{font-size:13.5px;color:var(--c-muted);margin-bottom:22px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:7px}
.field.full{grid-column:span 2}
.field label{font-size:13.5px;font-weight:600;color:var(--c-ink)}
.field label em{color:var(--c-danger);font-style:normal;margin-left:3px}
.field input,.field select{
  height:48px;border-radius:var(--r-sm);border:1px solid var(--c-line);
  padding:0 14px;background:#fff;color:var(--c-ink);
  transition:border-color .2s ease,box-shadow .2s ease;
  width:100%;
}
.field input::placeholder{color:#B6B2C9}
.field input:focus,.field select:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(108,59,255,.12)}
.field.error input,.field.error select{border-color:var(--c-danger)}
.field .err-msg{font-size:12.5px;color:var(--c-danger);display:none}
.field.error .err-msg{display:block}
.form-card .btn{margin-top:20px}
.form-note{font-size:12.5px;color:var(--c-muted);margin:14px 0 0;text-align:center}
.form-success{
  display:none;margin-top:18px;padding:16px 18px;border-radius:var(--r-sm);
  background:rgba(18,183,106,.10);border:1px solid rgba(18,183,106,.28);
  color:#0B7A47;font-size:14px;line-height:1.7;
}
.form-success.show{display:block}

/* ============ NEWS ============ */
.news-layout{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:start}
.news-main{
  background:#fff;border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--c-line);box-shadow:var(--sh-1);
  transition:transform .3s ease,box-shadow .3s ease;
}
.news-main:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.news-main-media{position:relative;display:block;aspect-ratio:16/9;background:#EDEBF6;overflow:hidden}
.news-main-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.news-main:hover .news-main-media img{transform:scale(1.04)}
.media-badge{
  position:absolute;top:14px;left:14px;
  background:rgba(20,16,43,.66);color:#fff;
  font-size:12px;border-radius:var(--r-pill);padding:5px 12px;backdrop-filter:blur(4px);
}
.news-main-body{padding:26px 28px 28px}
.news-main-body h3{font-size:23px;margin:12px 0 10px}
.news-main-body h3 a{color:var(--c-ink)}
.news-main-body h3 a:hover{color:var(--c-primary)}
.news-main-body p{font-size:14.5px;color:var(--c-muted);margin:0 0 16px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.news-sub{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.news-card{
  background:#fff;border-radius:16px;border:1px solid var(--c-line);
  box-shadow:var(--sh-1);padding:20px;display:flex;flex-direction:column;gap:10px;
  transition:transform .3s ease,box-shadow .3s ease;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.news-card h4{font-size:16.5px;line-height:1.55}
.news-card h4 a{color:var(--c-ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card h4 a:hover{color:var(--c-primary)}
.news-card p{font-size:13.5px;color:var(--c-muted);margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  font-size:12.5px;color:var(--c-muted);border-top:1px dashed var(--c-line);padding-top:12px;
}
.card-meta .num{font-family:var(--font-num);}
.news-card.wide{grid-column:span 2;flex-direction:row;align-items:center;gap:18px}
.news-card.wide .wide-thumb{width:170px;aspect-ratio:16/9;border-radius:12px;overflow:hidden;flex-shrink:0;background:#EDEBF6}
.news-card.wide .wide-thumb img{width:100%;height:100%;object-fit:cover}
.empty-state{
  min-height:220px;background:#fff;border:1px dashed var(--c-line);border-radius:var(--r-card);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  text-align:center;padding:40px 24px;box-shadow:var(--sh-1);
}
.empty-state svg{width:56px;height:56px;stroke:var(--c-muted);fill:none;stroke-width:1.4;stroke-linecap:round;stroke-linejoin:round;opacity:.7}
.empty-state p{color:var(--c-muted);margin:0}

/* ============ FAQ ============ */
.faq-wrap{max-width:820px;margin:0 auto}
.faq-item{
  background:#fff;border:1px solid var(--c-line);border-left:3px solid transparent;
  border-radius:14px;margin-bottom:12px;padding:18px 22px;
  transition:border-color .25s ease,box-shadow .25s ease;
}
.faq-item[open]{border-left-color:var(--c-accent);box-shadow:var(--sh-1)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:18px;
  font-size:17px;font-weight:600;color:var(--c-ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"";width:9px;height:9px;flex-shrink:0;
  border-right:2px solid var(--c-primary);border-bottom:2px solid var(--c-primary);
  transform:rotate(45deg);transition:transform .28s ease;margin-top:-4px;
}
.faq-item[open] summary::after{transform:rotate(-135deg);margin-top:4px}
.faq-item .faq-body{padding-top:14px;animation:faqIn .3s ease}
.faq-item .faq-body p{margin:0;font-size:15px;color:var(--c-body)}
@keyframes faqIn{from{opacity:0;transform:translateY(-5px)}to{opacity:1;transform:none}}

/* ============ FOOTER ============ */
.site-footer{background:var(--c-dark);color:rgba(255,255,255,.72);padding:68px 0 26px;border-top:1px solid rgba(255,255,255,.08)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:44px;border-bottom:1px solid rgba(255,255,255,.08)}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:16px}
.footer-brand .brand-text{color:#fff;font-size:18px}
.site-footer p{font-size:13.5px;line-height:1.85;color:rgba(255,255,255,.62);margin:0 0 14px}
.footer-col h4{color:#fff;font-size:15.5px;margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a{color:rgba(255,255,255,.72);font-size:14px}
.footer-col a:hover{color:var(--c-accent)}
.footer-note{font-size:13px;color:rgba(255,255,255,.5);margin:0}
.footer-bottom{
  padding-top:22px;text-align:center;font-size:13px;color:rgba(255,255,255,.5);
}
.footer-bottom span{color:var(--c-accent)}

/* ============ RESPONSIVE ============ */
@media (max-width:1279px){
  .container{padding:0 24px}
  .header-inner{gap:18px}
  .main-nav a{padding:9px 10px;font-size:15px}
  .search-box{width:170px}
}
@media (max-width:1023px){
  h1{font-size:38px}
  h2{font-size:29px}
  .hero-inner{grid-template-columns:1fr;gap:42px}
  .hero-visual .float-card{left:auto;right:14px;bottom:-18px}
  .bento{grid-template-columns:repeat(2,1fr)}
  .bento-card.b-lg{grid-column:span 2}
  .bento-card.b-sm{grid-column:span 1}
  .bento-card.b-lg .bento-thumb{width:180px}
  .plan-grid{grid-template-columns:1fr;gap:18px;align-items:stretch}
  .plan.featured{transform:none}
  .plan.featured:hover{transform:translateY(-4px)}
  .signup-inner{grid-template-columns:1fr;gap:38px}
  .news-layout{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .section{padding:48px 0}
  .section.tight{padding:40px 0}
  h1{font-size:30px}
  h2{font-size:25px}
  h3{font-size:19px}
  .main-nav,.header-tools .search-box{display:none}
  .nav-toggle{display:flex}
  .header-tools{gap:10px}
  .header-inner{height:64px;justify-content:space-between}
  .brand-text{font-size:16px;white-space:normal;line-height:1.3}
  .hero{padding:56px 0 64px}
  .hero-sub{font-size:15.5px}
  .hero-actions .btn{width:100%}
  .hero-visual .float-card{position:static;margin-top:16px;left:auto;right:auto}
  .timeline::before{left:7px;transform:none}
  .tl-item,.tl-item:nth-child(even){width:100%;margin-left:0;padding:0 0 24px 32px}
  .tl-item::after,.tl-item:nth-child(even)::after{left:0;right:auto;top:26px}
  .bento{grid-template-columns:1fr}
  .bento-card.b-lg,.bento-card.b-sm{grid-column:span 1;flex-direction:column;align-items:flex-start;gap:14px}
  .bento-card.b-lg .bento-thumb{width:100%}
  .news-sub{grid-template-columns:1fr}
  .news-card.wide{grid-column:span 1;flex-direction:column;align-items:flex-start}
  .news-card.wide .wide-thumb{width:100%}
  .form-grid{grid-template-columns:1fr}
  .field.full{grid-column:span 1}
  .form-card{padding:24px 20px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .section-head.row{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .hero-pills .pill{width:100%;justify-content:space-between}
  .btn{padding:14px 22px;font-size:15px}
  .news-main-body{padding:20px}
  .faq-item{padding:16px 16px}
  .faq-item summary{font-size:15.5px}
}

/* roulang page: article */
:root{
  --c-primary:#6C3BFF;
  --c-primary-deep:#4A21D1;
  --c-primary-soft:#F1EDFF;
  --c-accent:#00E0C6;
  --c-hot:#FF6B2C;
  --c-hot-deep:#FF3D71;
  --c-ink:#171233;
  --c-body:#4A4763;
  --c-muted:#8A86A3;
  --c-bg:#F6F5FB;
  --c-surface:#FFFFFF;
  --c-line:#E7E4F2;
  --c-dark:#14102B;
  --c-success:#12B76A;
  --c-warn:#F04438;
  --g-kv:linear-gradient(135deg,#14102B 0%,#241A5C 55%,#0E2E3A 100%);
  --r-card:18px;
  --r-sm:12px;
  --r-pill:999px;
  --sh-1:0 10px 30px rgba(23,18,51,.08);
  --sh-2:0 18px 46px rgba(108,59,255,.18);
  --sh-hot:0 12px 28px rgba(255,107,44,.32);
  --num-font:"Chakra Petch","HarmonyOS Sans SC","PingFang SC",sans-serif;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;padding:0;
  font-family:"HarmonyOS Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;line-height:1.85;color:var(--c-body);background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--c-primary-deep);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--c-primary)}
h1,h2,h3,h4{margin:0;color:var(--c-ink);line-height:1.3;font-weight:700}
p{margin:0 0 16px}
ul,ol{margin:0;padding:0}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(108,59,255,.35);border-radius:8px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}

/* ============ Header ============ */
.site-header{
  position:sticky;top:0;z-index:120;background:#fff;
  border-bottom:1px solid var(--c-line);
  box-shadow:0 2px 12px rgba(23,18,51,.05);
  transition:box-shadow .25s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(23,18,51,.10)}
.header-inner{display:flex;align-items:center;gap:20px;height:74px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;text-decoration:none}
.brand-mark{
  width:28px;height:28px;border-radius:9px;flex-shrink:0;
  background:linear-gradient(135deg,#00E0C6 0%,#6C3BFF 100%);
  display:grid;place-items:center;box-shadow:0 6px 16px rgba(0,224,198,.32);
}
.brand-mark span{width:11px;height:11px;border:2px solid #fff;border-radius:3px;display:block}
.brand-text{font-size:19px;font-weight:700;color:var(--c-ink);letter-spacing:.2px;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:14px;flex:1;min-width:0}
.main-nav a{
  position:relative;padding:8px 14px;font-size:16px;color:var(--c-body);
  border-radius:10px;white-space:nowrap;transition:color .2s var(--ease),background .2s var(--ease);
}
.main-nav a:hover{color:var(--c-primary);background:var(--c-primary-soft)}
.main-nav a.active{color:var(--c-primary);font-weight:600}
.main-nav a.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  border-radius:2px;background:var(--c-accent);
}
.header-tools{display:flex;align-items:center;gap:12px;margin-left:auto;flex-shrink:0}
.search-box{
  display:flex;align-items:center;gap:8px;height:42px;width:230px;
  padding:0 16px;background:#F6F5FB;border:1px solid transparent;border-radius:var(--r-pill);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
}
.search-box:focus-within{border-color:var(--c-primary);background:#fff;box-shadow:0 0 0 4px rgba(108,59,255,.12)}
.search-box svg{width:16px;height:16px;stroke:var(--c-muted);fill:none;flex-shrink:0}
.search-box input{border:0;background:transparent;outline:none;width:100%;font-size:14px;color:var(--c-ink)}
.search-box input::placeholder{color:var(--c-muted)}
.nav-toggle{display:none;width:42px;height:42px;border-radius:12px;background:#F6F5FB;position:relative}
.nav-toggle i,.nav-toggle i::before,.nav-toggle i::after{
  position:absolute;left:50%;transform:translateX(-50%);width:18px;height:2px;border-radius:2px;
  background:var(--c-ink);content:"";display:block;
}
.nav-toggle i{top:20px}
.nav-toggle i::before{top:-6px;left:0;transform:none}
.nav-toggle i::after{top:6px;left:0;transform:none}

/* ============ Buttons ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:16px;font-weight:700;border-radius:var(--r-sm);padding:14px 30px;
  text-decoration:none;white-space:nowrap;border:0;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),filter .22s var(--ease),color .22s var(--ease);
}
.btn-primary{background:linear-gradient(135deg,#FF6B2C 0%,#6C3BFF 100%);color:#fff;box-shadow:0 8px 20px rgba(255,107,44,.24)}
.btn-primary:hover{color:#fff;filter:brightness(1.08);transform:translateY(-2px);box-shadow:var(--sh-hot)}
.btn-primary:active{transform:translateY(0);filter:brightness(.98)}
.btn-primary:disabled,.btn-primary[aria-disabled="true"]{opacity:.45;pointer-events:none}
.btn-ghost{background:#fff;color:var(--c-primary-deep);border:1.5px solid var(--c-primary)}
.btn-ghost:hover{background:var(--c-primary-soft);color:var(--c-primary-deep);transform:translateY(-2px);box-shadow:0 10px 24px rgba(108,59,255,.16)}
.btn-dark{background:rgba(255,255,255,.06);color:#fff;border:1.5px solid var(--c-accent)}
.btn-dark:hover{background:rgba(0,224,198,.14);color:#fff;transform:translateY(-2px)}
.btn-sm{padding:10px 20px;font-size:15px;border-radius:12px}
.btn-block{width:100%}

/* ============ Page hero ============ */
.page-hero{position:relative;background:var(--g-kv);color:#fff;padding:44px 0 118px;overflow:hidden}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-2.png);
  background-size:cover;background-position:center;opacity:.24;
}
.page-hero::after{
  content:"";position:absolute;inset:0;opacity:.4;
  background-image:linear-gradient(rgba(255,255,255,.07) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.07) 1px,transparent 1px);
  background-size:52px 52px;
}
.page-hero .container{position:relative;z-index:3}
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13.5px;color:rgba(255,255,255,.68);margin-bottom:22px}
.breadcrumb a{color:rgba(255,255,255,.78)}
.breadcrumb a:hover{color:var(--c-accent)}
.breadcrumb .sep{opacity:.45}
.breadcrumb .current{color:#fff;font-weight:600}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:16px}
.badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;
  border-radius:var(--r-pill);font-size:13px;font-weight:600;line-height:1;
}
.badge-cat{background:var(--c-primary-soft);color:var(--c-primary-deep)}
.badge-dark{background:rgba(0,224,198,.16);color:#6FF3E2;border:1px solid rgba(0,224,198,.38)}
.badge-hot{background:rgba(255,107,44,.16);color:#FFB48B;border:1px solid rgba(255,107,44,.38)}
.page-hero h1{color:#fff;font-size:38px;line-height:1.28;max-width:900px;letter-spacing:.2px}
.hero-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;margin-top:22px;font-size:14px;color:rgba(255,255,255,.72)}
.hero-meta .dot{width:5px;height:5px;border-radius:50%;background:var(--c-accent);display:inline-block;margin-right:8px;vertical-align:middle}
.hero-meta strong{color:#fff;font-weight:600}
.num{font-family:var(--num-font);letter-spacing:.4px}

/* ============ Article layout ============ */
.article-stage{margin-top:-72px;position:relative;z-index:5;padding-bottom:8px}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:34px;align-items:start}
.article-main{min-width:0}
.article-cover{
  margin:0 0 22px;border-radius:var(--r-card);overflow:hidden;background:#EDEBF6;
  box-shadow:var(--sh-1);aspect-ratio:16/9;position:relative;
}
.article-cover img{width:100%;height:100%;object-fit:cover;border-radius:var(--r-card)}
.article-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:40px;box-shadow:var(--sh-1);
}
.article-card .prose{max-width:760px}

/* ============ Prose ============ */
.prose{font-size:16px;line-height:1.85;color:var(--c-body)}
.prose > *:first-child{margin-top:0}
.prose h2{
  position:relative;font-size:24px;line-height:1.35;color:var(--c-ink);
  margin:38px 0 16px;padding-left:16px;
}
.prose h2::before{
  content:"";position:absolute;left:0;top:.24em;bottom:.24em;width:4px;
  border-radius:4px;background:var(--c-accent);
}
.prose h3{font-size:19px;line-height:1.45;color:var(--c-primary-deep);margin:26px 0 12px;font-weight:700}
.prose h4{font-size:17px;color:var(--c-ink);margin:20px 0 10px}
.prose p{margin:0 0 16px}
.prose ul,.prose ol{margin:0 0 18px;padding-left:24px}
.prose ul li{list-style:disc}
.prose ol li{list-style:decimal}
.prose li{margin-bottom:9px;line-height:1.9}
.prose li::marker{color:var(--c-primary)}
.prose img{border-radius:12px;margin:14px 0;max-width:100%;height:auto}
.prose figure{margin:18px 0}
.prose figcaption{font-size:13.5px;color:var(--c-muted);text-align:center;margin-top:8px}
.prose blockquote{
  margin:22px 0;padding:16px 22px;background:#F6F3FF;border-left:4px solid var(--c-primary);
  border-radius:0 12px 12px 0;color:var(--c-body);
}
.prose blockquote p:last-child{margin-bottom:0}
.prose pre{
  background:#F4F3F9;border:1px solid var(--c-line);border-radius:12px;
  padding:18px 20px;overflow-x:auto;font-size:14px;line-height:1.7;margin:20px 0;
  font-family:"Chakra Petch",ui-monospace,Menlo,Consolas,monospace;
}
.prose code{
  background:#F4F3F9;padding:2px 7px;border-radius:6px;font-size:.92em;
  font-family:"Chakra Petch",ui-monospace,Menlo,Consolas,monospace;color:var(--c-primary-deep);
}
.prose pre code{background:none;padding:0;color:var(--c-ink)}
.prose a{color:var(--c-primary-deep);text-decoration:underline;text-underline-offset:3px}
.prose a:hover{color:var(--c-primary)}
.prose table{width:100%;border-collapse:collapse;margin:20px 0;font-size:15px;background:#FCFBFF;border-radius:12px;overflow:hidden}
.prose th,.prose td{padding:12px 14px;border-bottom:1px solid var(--c-line);text-align:left}
.prose th{background:#F4F2FE;color:var(--c-ink);font-weight:700}
.prose tr:last-child td{border-bottom:0}
.prose hr{border:0;border-top:1px solid var(--c-line);margin:28px 0}

/* ============ Sidebar ============ */
.article-side{position:sticky;top:96px;align-self:start}
.side-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:22px;box-shadow:0 10px 26px rgba(23,18,51,.06);margin-bottom:20px;
}
.side-card:last-child{margin-bottom:0}
.side-title{
  display:flex;align-items:center;gap:9px;font-size:17px;color:var(--c-ink);
  margin:0 0 16px;font-weight:700;
}
.side-title::before{content:"";width:4px;height:16px;border-radius:4px;background:var(--c-accent);display:block}
.rec-list{list-style:none;margin:0;padding:0}
.rec-list li{padding:12px 0;border-bottom:1px dashed var(--c-line)}
.rec-list li:last-child{border-bottom:0;padding-bottom:0}
.rec-list li:first-child{padding-top:0}
.rec-list a{display:block;font-size:15px;line-height:1.6;color:var(--c-ink);font-weight:600}
.rec-list a:hover{color:var(--c-primary)}
.rec-time{display:block;font-size:12.5px;color:var(--c-muted);margin-top:6px;font-family:var(--num-font);letter-spacing:.3px}
.tag-cloud{display:flex;flex-wrap:wrap;gap:9px}
.tag-cloud a{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:var(--r-pill);
  background:#F6F5FB;color:var(--c-body);font-size:13.5px;transition:all .2s var(--ease);
}
.tag-cloud a:hover{background:var(--c-primary-soft);color:var(--c-primary-deep);transform:translateY(-2px)}
.side-cta{
  position:relative;overflow:hidden;border-radius:var(--r-card);padding:24px;
  background:var(--g-kv);color:#fff;border:1px solid rgba(255,255,255,.10);
}
.side-cta::after{
  content:"";position:absolute;right:-40px;bottom:-40px;width:150px;height:150px;border-radius:50%;
  background:radial-gradient(circle,rgba(0,224,198,.35),transparent 70%);
}
.side-cta h3{color:#fff;font-size:18px;margin-bottom:8px;position:relative;z-index:2}
.side-cta p{color:rgba(255,255,255,.74);font-size:14px;line-height:1.7;margin:0 0 16px;position:relative;z-index:2}
.side-cta .btn{position:relative;z-index:2;width:100%}
.side-cta .btn-ghost{background:transparent;color:#fff;border-color:var(--c-accent)}
.side-cta .btn-ghost:hover{background:rgba(0,224,198,.16);color:#fff}

/* ============ Post nav ============ */
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:24px}
.post-nav a{
  display:block;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:20px 22px;box-shadow:0 8px 22px rgba(23,18,51,.05);
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.post-nav a:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(108,59,255,.35)}
.post-nav .pn-label{display:block;font-size:12.5px;color:var(--c-muted);letter-spacing:1px;margin-bottom:8px}
.post-nav .pn-title{display:block;font-size:15.5px;font-weight:700;color:var(--c-ink);line-height:1.6}
.post-nav a:hover .pn-title{color:var(--c-primary)}
.post-nav .next{text-align:right}
.back-line{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}

/* ============ Empty state ============ */
.empty-state{text-align:center;padding:56px 32px}
.empty-icon{
  width:76px;height:76px;margin:0 auto 20px;border-radius:20px;
  background:var(--c-primary-soft);display:grid;place-items:center;
}
.empty-icon svg{width:38px;height:38px;stroke:var(--c-primary);fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.empty-state h2{font-size:22px;margin-bottom:10px}
.empty-state p{color:var(--c-muted);max-width:480px;margin:0 auto 22px}

/* ============ Footer ============ */
.site-footer{
  background:var(--c-dark);color:rgba(255,255,255,.72);
  border-top:1px solid rgba(255,255,255,.08);margin-top:76px;padding-top:56px;
}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:32px;padding-bottom:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-text{color:#fff;font-size:18px}
.site-footer p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.64);margin:0 0 12px;max-width:380px}
.footer-note{font-size:13px !important;color:rgba(255,255,255,.46) !important}
.footer-col h4{color:#fff;font-size:15px;margin:0 0 16px;font-weight:700}
.footer-col ul{list-style:none}
.footer-col li{margin-bottom:11px}
.footer-col a{color:rgba(255,255,255,.72);font-size:14px}
.footer-col a:hover{color:var(--c-accent)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);padding:20px 0 26px;text-align:center;
  font-size:13px;color:rgba(255,255,255,.5);
}
.footer-bottom span{font-family:var(--num-font);letter-spacing:.4px}

/* ============ Responsive ============ */
@media (max-width:1120px){
  .search-box{width:180px}
  .main-nav a{padding:8px 11px;font-size:15px}
}
@media (max-width:1024px){
  .container{padding:0 24px}
  .article-layout{grid-template-columns:minmax(0,1fr)}
  .article-side{position:static;margin-top:26px}
  .article-card{padding:32px}
  .page-hero h1{font-size:31px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media (max-width:900px){
  .search-box{display:none}
}
@media (max-width:768px){
  .container{padding:0 18px}
  .header-inner{height:64px;gap:12px}
  .brand-text{font-size:16.5px}
  .main-nav{
    position:absolute;top:calc(100% + 10px);left:16px;right:16px;
    flex-direction:column;align-items:stretch;gap:4px;margin:0;padding:14px;
    background:#fff;border:1px solid var(--c-line);border-radius:16px;
    box-shadow:0 18px 44px rgba(23,18,51,.16);display:none;
  }
  body.nav-open .main-nav{display:flex}
  .main-nav a{padding:12px 14px;border-radius:12px;font-size:16px}
  .main-nav a.active::after{display:none}
  .main-nav a.active{background:var(--c-primary-soft)}
  .nav-toggle{display:block}
  .header-tools .btn-sm{padding:9px 16px;font-size:14px}
  .page-hero{padding:32px 0 100px}
  .page-hero h1{font-size:27px}
  .breadcrumb{font-size:12.5px;margin-bottom:16px}
  .hero-meta{font-size:13px;gap:8px 16px}
  .article-stage{margin-top:-64px}
  .article-card{padding:22px;border-radius:16px}
  .prose h2{font-size:20px}
  .prose h3{font-size:17px}
  .post-nav{grid-template-columns:1fr}
  .post-nav .next{text-align:left}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .site-footer{margin-top:56px;padding-top:44px}
  .side-card{padding:20px}
}
@media (max-width:520px){
  .container{padding:0 14px}
  .brand-text{font-size:15px}
  .header-tools .btn-sm{padding:8px 12px;font-size:13px}
  .page-hero h1{font-size:23px}
  .article-card{padding:18px}
  .btn{padding:13px 22px;font-size:15px;width:100%}
  .btn.inline-auto{width:auto}
  .hero-meta{flex-direction:column;align-items:flex-start;gap:8px}
  .rec-list a{font-size:14.5px}
}

/* roulang page: category1 */
:root{
  --c-primary:#6C3BFF;
  --c-primary-deep:#4A21D1;
  --c-accent:#00E0C6;
  --c-hot:#FF6B2C;
  --c-hot-tag:#FF3D71;
  --c-ink:#171233;
  --c-body:#4A4763;
  --c-muted:#8A86A3;
  --c-bg:#F6F5FB;
  --c-surface:#FFFFFF;
  --c-line:#E7E4F2;
  --c-dark:#14102B;
  --c-dark-soft:#241A5C;
  --c-success:#12B76A;
  --c-warn:#F04438;
  --g-kv:linear-gradient(135deg,#14102B 0%,#241A5C 55%,#0E2E3A 100%);
  --g-cta:linear-gradient(135deg,#FF6B2C,#6C3BFF);
  --g-soft:linear-gradient(135deg,#F3EFFF 0%,#F6F5FB 60%,#EAF7F6 100%);
  --r-lg:18px;
  --r-md:12px;
  --r-sm:10px;
  --sh-1:0 10px 30px rgba(23,18,51,.08);
  --sh-2:0 18px 46px rgba(108,59,255,.18);
  --sh-head:0 2px 12px rgba(23,18,51,.05);
  --sh-head-on:0 6px 20px rgba(23,18,51,.10);
  --container:1200px;
  --num-font:"Chakra Petch","Barlow","HarmonyOS Sans SC","PingFang SC",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"HarmonyOS Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--c-body);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--c-primary-deep)}
h1,h2,h3,h4{margin:0;color:var(--c-ink);font-weight:700;line-height:1.3}
h1{font-size:48px;line-height:1.15;letter-spacing:-.5px}
h2{font-size:34px;line-height:1.3}
h3{font-size:22px;line-height:1.45}
h4{font-size:17px;line-height:1.5}
p{margin:0 0 16px}
ul,ol{margin:0;padding:0;list-style:none}
button,input,select{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
:focus-visible{outline:3px solid rgba(108,59,255,.35);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}
.section{padding:88px 0}
.section-head{max-width:760px;margin-bottom:32px}
.section-head .eyebrow{display:inline-block;font-family:var(--num-font);font-size:13px;letter-spacing:.14em;text-transform:uppercase;color:var(--c-primary);background:#F1EDFF;border-radius:999px;padding:5px 14px;margin-bottom:14px;font-weight:700}
.section-head p{margin-top:12px;color:var(--c-muted)}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--r-md);font-size:16px;font-weight:700;padding:14px 30px;transition:transform .22s ease,box-shadow .22s ease,background .22s ease,color .22s ease;white-space:nowrap;border:1.5px solid transparent}
.btn-primary{background:var(--g-cta);color:#fff;box-shadow:0 10px 24px rgba(255,107,44,.26)}
.btn-primary:hover{color:#fff;filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 12px 28px rgba(255,107,44,.32)}
.btn-primary:active{transform:translateY(0);filter:brightness(.98)}
.btn-ghost{background:#fff;color:var(--c-primary);border-color:var(--c-primary)}
.btn-ghost:hover{background:rgba(108,59,255,.08);color:var(--c-primary-deep)}
.btn-cyan{background:transparent;color:var(--c-accent);border-color:rgba(0,224,198,.7)}
.btn-cyan:hover{background:rgba(0,224,198,.14);color:#7ff6e6}
.btn-sm{padding:10px 20px;font-size:15px}
.btn-block{width:100%}

/* ---------- Header / Nav ---------- */
.site-header{position:sticky;top:0;z-index:80;background:#fff;border-bottom:1px solid var(--c-line);box-shadow:var(--sh-head);transition:box-shadow .25s ease}
.site-header.is-scrolled{box-shadow:var(--sh-head-on)}
.header-inner{display:flex;align-items:center;gap:28px;height:76px}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.brand-mark{width:24px;height:24px;border-radius:7px;background:var(--c-accent);display:inline-flex;align-items:center;justify-content:center;position:relative;box-shadow:0 6px 16px rgba(0,224,198,.35)}
.brand-mark span{width:11px;height:11px;border:2.5px solid #fff;border-radius:3px;display:block}
.brand-text{font-size:19px;font-weight:700;color:var(--c-ink);letter-spacing:-.2px}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:8px}
.main-nav a{position:relative;font-size:17px;color:var(--c-body);padding:26px 0;font-weight:500}
.main-nav a::after{content:"";position:absolute;left:0;right:0;bottom:18px;height:2px;background:var(--c-accent);border-radius:2px;transform:scaleX(0);transform-origin:left;transition:transform .25s ease}
.main-nav a:hover{color:var(--c-primary)}
.main-nav a:hover::after{transform:scaleX(1)}
.main-nav a.active{color:var(--c-primary);font-weight:700}
.main-nav a.active::after{transform:scaleX(1)}
.header-tools{display:flex;align-items:center;gap:14px;margin-left:auto}
.search-box{display:flex;align-items:center;gap:8px;height:42px;padding:0 16px;background:var(--c-bg);border:1px solid transparent;border-radius:999px;transition:border-color .2s ease,box-shadow .2s ease;width:220px}
.search-box svg{width:17px;height:17px;stroke:var(--c-muted);flex:0 0 auto}
.search-box input{border:0;background:transparent;outline:none;width:100%;font-size:14px;color:var(--c-ink)}
.search-box:focus-within{border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(108,59,255,.12)}
.nav-toggle{display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--c-line);background:#fff;position:relative}
.nav-toggle i,.nav-toggle i::before,.nav-toggle i::after{position:absolute;left:50%;transform:translateX(-50%);width:18px;height:2px;background:var(--c-ink);border-radius:2px;content:""}
.nav-toggle i{top:50%;margin-top:-1px}
.nav-toggle i::before{top:-6px;left:0;transform:none}
.nav-toggle i::after{top:6px;left:0;transform:none}
.nav-mask{display:none;position:fixed;inset:0;background:rgba(20,16,43,.55);z-index:70;opacity:0;pointer-events:none;transition:opacity .25s ease}
body.nav-open .nav-mask{opacity:1;pointer-events:auto}

/* ---------- Page hero ---------- */
.page-hero{position:relative;background:var(--g-kv);color:#fff;overflow:hidden}
.page-hero::before{content:"";position:absolute;inset:0;background-image:url("/assets/images/backpic/back-2.png");background-size:cover;background-position:center;opacity:.32;mix-blend-mode:luminosity}
.page-hero::after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);background-size:52px 52px;opacity:.5}
.page-hero .container{position:relative;z-index:2;padding-top:64px;padding-bottom:72px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.62);margin-bottom:22px}
.breadcrumb a{color:rgba(255,255,255,.82)}
.breadcrumb a:hover{color:var(--c-accent)}
.breadcrumb span.sep{opacity:.5}
.page-hero h1{color:#fff;max-width:900px;margin-bottom:18px}
.page-hero .lede{max-width:720px;color:rgba(255,255,255,.82);font-size:17px;margin-bottom:0}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:20px}
.badge{display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:999px;font-size:13px;font-weight:600;line-height:1}
.badge-soft{background:#F1EDFF;color:var(--c-primary-deep)}
.badge-cyan{background:rgba(0,224,198,.16);color:#8df4e6;border:1px solid rgba(0,224,198,.4)}
.badge-hot{background:rgba(255,61,113,.16);color:#ff9bb8;border:1px solid rgba(255,61,113,.4)}
.badge-live{background:rgba(18,183,106,.16);color:#6ee7ab;border:1px solid rgba(18,183,106,.38)}
.hero-metrics{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-top:36px;max-width:820px}
.metric{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.12);border-radius:var(--r-md);padding:16px 18px}
.metric b{display:block;font-family:var(--num-font);font-size:26px;color:#fff;line-height:1.2;letter-spacing:.02em}
.metric span{font-size:13px;color:rgba(255,255,255,.66)}

/* ---------- Entry layout ---------- */
.entry-layout{display:grid;grid-template-columns:236px minmax(0,1fr);gap:48px;align-items:start}
.anchor-nav{position:sticky;top:104px;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);padding:20px 18px;box-shadow:var(--sh-1)}
.anchor-nav h4{font-size:14px;color:var(--c-muted);letter-spacing:.08em;margin-bottom:12px;font-weight:700}
.anchor-nav a{display:flex;align-items:center;gap:10px;padding:11px 12px;border-radius:var(--r-sm);font-size:15px;color:var(--c-body);font-weight:500}
.anchor-nav a::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-accent);flex:0 0 auto}
.anchor-nav a:hover{background:#F6F5FB;color:var(--c-primary)}
.anchor-nav .anchor-cta{margin-top:16px;padding-top:16px;border-top:1px dashed var(--c-line)}
.anchor-nav .anchor-cta p{font-size:13px;color:var(--c-muted);margin:0 0 10px}

.entry-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
.entry-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);display:flex;flex-direction:column;transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease}
.entry-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(108,59,255,.35)}
.card-media{position:relative;aspect-ratio:16/9;background:#EDEBF6;overflow:hidden}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.entry-card:hover .card-media img{transform:scale(1.04)}
.card-media .badge{position:absolute;left:12px;top:12px;background:rgba(20,16,43,.72);color:#fff;backdrop-filter:blur(2px)}
.card-media .badge.is-hot{background:rgba(255,61,113,.86)}
.card-body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1}
.card-body h3{font-size:20px;margin-bottom:8px}
.card-body p{font-size:14.5px;color:var(--c-muted);line-height:1.7;margin-bottom:18px}
.card-link{margin-top:auto;display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:700;color:var(--c-primary)}
.card-link svg{width:16px;height:16px;stroke:currentColor;transition:transform .25s ease}
.entry-card:hover .card-link svg{transform:translateX(4px)}

/* ---------- Status panel ---------- */
.status-panel{margin-top:28px;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);padding:8px 22px;box-shadow:var(--sh-1)}
.status-row{display:flex;align-items:center;gap:14px;padding:16px 0;border-bottom:1px solid var(--c-line);font-size:15px}
.status-row:last-child{border-bottom:0}
.status-row .name{font-weight:600;color:var(--c-ink);min-width:132px}
.status-row .desc{color:var(--c-muted);font-size:14px;flex:1}
.dot{width:9px;height:9px;border-radius:50%;flex:0 0 auto}
.dot-ok{background:var(--c-success);box-shadow:0 0 0 4px rgba(18,183,106,.16)}
.dot-warn{background:#F79009;box-shadow:0 0 0 4px rgba(247,144,9,.16)}
.dot-hot{background:var(--c-hot-tag);box-shadow:0 0 0 4px rgba(255,61,113,.16)}
.tag{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;font-size:12.5px;font-weight:700;white-space:nowrap}
.tag-ok{background:#E7F8F0;color:#0B8A50}
.tag-warn{background:#FEF3E2;color:#B25E04}
.tag-hot{background:#FFE9F0;color:#C51E4C}

/* ---------- Steps ---------- */
.steps-wrap{background:var(--g-soft);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:26px;position:relative}
.step{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);padding:28px 26px;box-shadow:var(--sh-1);position:relative;transition:transform .3s ease,box-shadow .3s ease}
.step:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.step-num{width:44px;height:44px;border-radius:50%;background:var(--c-accent);color:#07332e;display:flex;align-items:center;justify-content:center;font-family:var(--num-font);font-size:19px;font-weight:700;margin-bottom:16px;box-shadow:0 8px 18px rgba(0,224,198,.35)}
.step h3{font-size:20px;margin-bottom:8px}
.step p{font-size:14.5px;color:var(--c-muted);margin-bottom:0;line-height:1.75}
.step .step-hint{display:inline-block;margin-top:14px;font-size:13px;font-family:var(--num-font);color:var(--c-primary-deep);background:#F1EDFF;border-radius:999px;padding:4px 12px}

/* ---------- Scenes ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.scene-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);padding:26px 24px;box-shadow:var(--sh-1);transition:transform .3s ease,box-shadow .3s ease}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.scene-icon{width:44px;height:44px;border-radius:12px;background:#F1EDFF;display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.scene-icon svg{width:22px;height:22px;stroke:var(--c-primary);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.scene-card h3{font-size:19px;margin-bottom:8px}
.scene-card p{font-size:14.5px;color:var(--c-muted);margin-bottom:0}
.check-list li{position:relative;padding-left:26px;font-size:14.5px;color:var(--c-body);margin-bottom:6px}
.check-list li::before{content:"";position:absolute;left:0;top:9px;width:14px;height:8px;border-left:2px solid var(--c-accent);border-bottom:2px solid var(--c-accent);transform:rotate(-45deg)}

/* ---------- FAQ ---------- */
.faq{max-width:820px;margin:0 auto}
.faq-item{background:#fff;border:1px solid var(--c-line);border-left:3px solid transparent;border-radius:14px;margin-bottom:14px;padding:0 22px;transition:border-color .25s ease,box-shadow .25s ease}
.faq-item[open]{border-left-color:var(--c-accent);box-shadow:var(--sh-1)}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 0;font-size:17px;font-weight:700;color:var(--c-ink)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .arrow{width:22px;height:22px;flex:0 0 auto;position:relative;transition:transform .3s ease}
.faq-item summary .arrow::before,.faq-item summary .arrow::after{content:"";position:absolute;top:50%;left:50%;background:var(--c-primary);border-radius:2px}
.faq-item summary .arrow::before{width:12px;height:2px;transform:translate(-50%,-50%)}
.faq-item summary .arrow::after{width:2px;height:12px;transform:translate(-50%,-50%);transition:opacity .3s ease}
.faq-item[open] summary .arrow{transform:rotate(180deg)}
.faq-item[open] summary .arrow::after{opacity:0}
.faq-item .answer{padding:0 0 20px;font-size:15px;color:var(--c-body);line-height:1.85;animation:fadeUp .3s ease}
@keyframes fadeUp{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}

/* ---------- CTA band ---------- */
.cta-band{position:relative;background:var(--g-kv);color:#fff;overflow:hidden}
.cta-band::after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);background-size:48px 48px}
.cta-band .container{position:relative;z-index:2;padding-top:72px;padding-bottom:72px}
.cta-inner{display:grid;grid-template-columns:minmax(0,1fr) 420px;gap:48px;align-items:center}
.cta-band h2{color:#fff;font-size:32px;margin-bottom:12px}
.cta-band p{color:rgba(255,255,255,.78);margin-bottom:24px;max-width:520px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}
.cta-card{background:#fff;border-radius:var(--r-lg);padding:28px 26px;box-shadow:0 24px 60px rgba(10,6,30,.35)}
.cta-card h3{font-size:19px;margin-bottom:6px}
.cta-card .cta-note{font-size:13px;color:var(--c-muted);margin-bottom:18px}
.field{margin-bottom:14px}
.field label{display:block;font-size:14px;color:var(--c-ink);font-weight:600;margin-bottom:6px}
.field input,.field select{width:100%;height:48px;border-radius:var(--r-md);border:1px solid var(--c-line);background:#FBFAFE;padding:0 14px;font-size:15px;transition:border-color .2s ease,box-shadow .2s ease}
.field input:focus,.field select:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(108,59,255,.12);background:#fff}

/* ---------- Footer ---------- */
.site-footer{background:var(--c-dark);color:rgba(255,255,255,.72);border-top:1px solid rgba(255,255,255,.08);padding:72px 0 26px;font-size:14.5px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.08)}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-brand .brand-text{color:#fff}
.footer-grid p{color:rgba(255,255,255,.62);line-height:1.8;margin-bottom:12px;max-width:340px}
.footer-note{font-size:13px;color:rgba(255,255,255,.5)}
.footer-col h4{color:#fff;font-size:16px;margin-bottom:16px}
.footer-col ul li{margin-bottom:10px}
.footer-col a{color:rgba(255,255,255,.72)}
.footer-col a:hover{color:var(--c-accent)}
.footer-bottom{text-align:center;font-size:13px;color:rgba(255,255,255,.5);padding-top:24px}
.footer-bottom span{font-family:var(--num-font);color:rgba(255,255,255,.7)}

/* ---------- Responsive ---------- */
@media (max-width:1279px){
  .container{max-width:100%}
}
@media (max-width:1023px){
  h1{font-size:38px}
  h2{font-size:29px}
  .section{padding:64px 0}
  .entry-layout{grid-template-columns:1fr;gap:32px}
  .anchor-nav{position:static;display:flex;flex-wrap:wrap;align-items:center;gap:10px;padding:16px}
  .anchor-nav h4{width:100%;margin-bottom:4px}
  .anchor-nav a{background:#F6F5FB;padding:9px 14px;font-size:14px}
  .anchor-nav .anchor-cta{width:100%;border-top:0;padding-top:6px;margin-top:6px}
  .entry-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-inner{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:768px){
  .container{padding:0 20px}
  .header-inner{height:66px;gap:14px}
  .brand-text{font-size:17px}
  .search-box{display:none}
  .header-tools .btn-sm{display:none}
  .nav-toggle{display:block;margin-left:auto}
  .main-nav{position:fixed;top:0;right:0;height:100%;width:min(320px,86vw);background:#fff;flex-direction:column;align-items:stretch;gap:0;margin:0;padding:84px 22px 28px;transform:translateX(102%);transition:transform .3s ease;box-shadow:-20px 0 50px rgba(23,18,51,.18);z-index:90;overflow-y:auto}
  body.nav-open .main-nav{transform:translateX(0)}
  .main-nav a{padding:16px 4px;border-bottom:1px solid var(--c-line);font-size:17px}
  .main-nav a::after{display:none}
  .main-nav a.active{border-left:3px solid var(--c-accent);padding-left:12px;border-radius:4px}
  body.nav-open{overflow:hidden}
  .nav-mask{display:block}
  h1{font-size:30px}
  h2{font-size:25px}
  h3{font-size:19px}
  .page-hero .container{padding-top:40px;padding-bottom:48px}
  .page-hero .lede{font-size:15.5px}
  .hero-metrics{grid-template-columns:1fr;gap:10px;margin-top:26px}
  .section{padding:48px 0}
  .entry-grid,.steps,.scene-grid{grid-template-columns:1fr}
  .status-row{flex-wrap:wrap;gap:8px}
  .status-row .desc{flex:1 1 100%}
  .faq-item summary{font-size:16px}
  .cta-band .container{padding-top:52px;padding-bottom:52px}
  .cta-band h2{font-size:24px}
  .cta-actions .btn{width:100%}
  .site-footer{padding:52px 0 22px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-grid p{max-width:none}
}
@media (max-width:480px){
  .entry-card .card-body{padding:18px 16px 20px}
  .step{padding:22px 18px}
  .scene-card{padding:22px 18px}
  .cta-card{padding:22px 18px}
  .btn{padding:13px 22px;font-size:15px}
  .status-panel{padding:6px 16px}
}

/* roulang page: category2 */
:root{
  --c-primary:#6C3BFF;
  --c-primary-deep:#4A21D1;
  --c-accent:#00E0C6;
  --c-hot:#FF6B2C;
  --c-ink:#171233;
  --c-body:#4A4763;
  --c-muted:#8A86A3;
  --c-bg:#F6F5FB;
  --c-surface:#FFFFFF;
  --c-line:#E7E4F2;
  --c-dark:#14102B;
  --c-soft:#F1EDFF;
  --c-soft-ink:#4A21D1;
  --g-kv:linear-gradient(135deg,#14102B 0%,#241A5C 55%,#0E2E3A 100%);
  --g-cta:linear-gradient(135deg,#FF6B2C,#6C3BFF);
  --ok:#12B76A;
  --warn:#F04438;
  --hot:#FF3D71;
  --r-card:18px;
  --r-sm:12px;
  --r-img:14px;
  --r-pill:999px;
  --sh-card:0 10px 30px rgba(23,18,51,.08);
  --sh-hover:0 18px 46px rgba(108,59,255,.18);
  --sh-head:0 2px 12px rgba(23,18,51,.05);
  --font:"HarmonyOS Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-num:"Chakra Petch","Barlow","DIN Alternate","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--c-body);
  background:var(--c-bg);
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--c-primary);text-decoration:none;transition:color .25s ease}
a:hover{color:var(--c-primary-deep)}
h1,h2,h3,h4{color:var(--c-ink);margin:0;font-weight:700;line-height:1.3}
h1{font-size:44px;line-height:1.15}
h2{font-size:34px;line-height:1.3}
h3{font-size:22px;line-height:1.45}
h4{font-size:17px;line-height:1.5}
p{margin:0 0 16px}
ul,ol{margin:0;padding:0;list-style:none}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
:focus-visible{outline:3px solid rgba(108,59,255,.35);outline-offset:2px;border-radius:6px}
.container{max-width:1200px;margin:0 auto;padding:0 32px;width:100%}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:#fff;
  border-bottom:1px solid var(--c-line);
  box-shadow:var(--sh-head);
  transition:box-shadow .3s ease;
}
.site-header.scrolled{box-shadow:0 6px 20px rgba(23,18,51,.10)}
.header-inner{display:flex;align-items:center;gap:28px;min-height:74px}
.brand{display:flex;align-items:center;gap:10px;flex:none}
.brand-mark{
  width:24px;height:24px;border-radius:7px;background:var(--c-accent);
  display:flex;align-items:center;justify-content:center;flex:none;
  box-shadow:0 6px 16px rgba(0,224,198,.38);
}
.brand-mark span{width:11px;height:11px;border-radius:3px;background:#fff;display:block;transform:rotate(45deg)}
.brand-text{font-size:19px;font-weight:700;color:var(--c-ink);letter-spacing:.2px;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:auto}
.main-nav a{
  position:relative;font-size:17px;color:var(--c-body);padding:6px 0;font-weight:500;
}
.main-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:var(--c-accent);transform:scaleX(0);transform-origin:left;transition:transform .28s ease;
}
.main-nav a:hover{color:var(--c-primary)}
.main-nav a:hover::after,.main-nav a.active::after{transform:scaleX(1)}
.main-nav a.active{color:var(--c-primary);font-weight:700}
.header-tools{display:flex;align-items:center;gap:14px;flex:none}
.search-box{
  display:flex;align-items:center;gap:8px;height:42px;padding:0 16px;
  background:var(--c-bg);border:1px solid transparent;border-radius:var(--r-pill);
  transition:border-color .25s ease,box-shadow .25s ease;width:210px;
}
.search-box svg{width:17px;height:17px;stroke:var(--c-muted);flex:none}
.search-box input{border:0;background:none;outline:none;width:100%;font-size:14px;color:var(--c-ink)}
.search-box input::placeholder{color:var(--c-muted)}
.search-box:focus-within{border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(108,59,255,.12);background:#fff}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:var(--r-sm);
  background:var(--c-bg);align-items:center;justify-content:center;
}
.nav-toggle i{display:block;width:18px;height:2px;background:var(--c-ink);border-radius:2px;position:relative}
.nav-toggle i::before,.nav-toggle i::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-ink);border-radius:2px}
.nav-toggle i::before{top:-6px}
.nav-toggle i::after{top:6px}
.drawer-search{display:none}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:16px;font-weight:700;line-height:1;
  padding:15px 30px;border-radius:var(--r-sm);
  border:1.5px solid transparent;transition:all .25s ease;white-space:nowrap;
}
.btn-primary{background:var(--g-cta);color:#fff;box-shadow:0 8px 22px rgba(255,107,44,.24)}
.btn-primary:hover{color:#fff;filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 12px 28px rgba(255,107,44,.32)}
.btn-primary:active{transform:none;filter:brightness(.98)}
.btn-ghost{background:#fff;border-color:var(--c-primary);color:var(--c-primary)}
.btn-ghost:hover{background:rgba(108,59,255,.08);color:var(--c-primary-deep)}
.btn-outline-light{background:transparent;border-color:var(--c-accent);color:var(--c-accent)}
.btn-outline-light:hover{background:rgba(0,224,198,.14);color:#7FF6E6}
.btn-sm{padding:11px 20px;font-size:14px;border-radius:10px}
.btn-block{width:100%}
.link-more{display:inline-flex;align-items:center;gap:6px;font-weight:700;color:var(--c-primary)}
.link-more span{transition:transform .25s ease}
.link-more:hover span{transform:translateX(4px)}

/* ---------- shared bits ---------- */
.badge{
  display:inline-flex;align-items:center;height:25px;padding:0 12px;border-radius:var(--r-pill);
  font-size:13px;font-weight:600;background:var(--c-soft);color:var(--c-soft-ink);
}
.section{padding:88px 0}
.section-alt{background:#fff}
.section-head{max-width:760px;margin-bottom:32px}
.section-head h2{position:relative;padding-left:16px;margin-bottom:14px}
.section-head h2::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:4px;border-radius:3px;background:var(--c-accent);
}
.section-head p{color:var(--c-muted);font-size:16px;margin:0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-family:var(--font-num);
  font-size:13px;letter-spacing:2px;font-weight:600;color:var(--c-primary);
  text-transform:uppercase;margin-bottom:12px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--c-accent);border-radius:2px}

/* ---------- hero banner ---------- */
.page-hero{
  background:
    linear-gradient(135deg,rgba(241,237,255,.96) 0%,rgba(246,245,251,.94) 55%,rgba(224,255,250,.92) 100%);
  padding:56px 0 72px;position:relative;overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(108,59,255,.07) 1px,transparent 1px),
    linear-gradient(90deg,rgba(108,59,255,.07) 1px,transparent 1px);
  background-size:44px 44px;
  mask-image:radial-gradient(circle at 78% 20%,#000 0%,transparent 72%);
  -webkit-mask-image:radial-gradient(circle at 78% 20%,#000 0%,transparent 72%);
}
.page-hero::after{
  content:"";position:absolute;width:420px;height:420px;right:-120px;top:-160px;border-radius:50%;
  background:radial-gradient(circle,rgba(108,59,255,.22),rgba(108,59,255,0) 68%);
}
.page-hero .container{position:relative;z-index:2}
.breadcrumb{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--c-muted);margin-bottom:22px;flex-wrap:wrap}
.breadcrumb a{color:var(--c-muted)}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb .sep{color:#C9C5DC}
.breadcrumb .current{color:var(--c-ink);font-weight:600}
.page-hero h1{max-width:900px;margin-bottom:18px}
.page-hero h1 em{font-style:normal;color:var(--c-primary)}
.hero-lead{max-width:720px;font-size:17px;color:var(--c-body);margin-bottom:26px}
.hero-chips{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:28px}
.chip{
  display:inline-flex;align-items:center;gap:9px;background:#fff;border:1px solid var(--c-line);
  border-radius:var(--r-pill);padding:9px 18px;font-size:14px;color:var(--c-body);
  box-shadow:0 6px 18px rgba(23,18,51,.05);
}
.chip b{font-family:var(--font-num);font-size:15px;color:var(--c-ink)}
.dot{width:8px;height:8px;border-radius:50%;display:inline-block;flex:none}
.dot-live{background:var(--ok);box-shadow:0 0 0 4px rgba(18,183,106,.18)}
.dot-soon{background:var(--c-hot);box-shadow:0 0 0 4px rgba(255,107,44,.18)}
.dot-end{background:#B9B5CC;box-shadow:0 0 0 4px rgba(185,181,204,.22)}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ---------- status explain ---------- */
.status-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.status-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:26px 24px;box-shadow:var(--sh-card);transition:transform .3s ease,box-shadow .3s ease;
}
.status-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover)}
.status-card .state{
  display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:700;margin-bottom:14px;
}
.state-live{color:var(--ok)}
.state-soon{color:var(--c-hot)}
.state-end{color:#8A86A3}
.status-card p{margin:0;font-size:15px;color:var(--c-body)}

/* ---------- events ---------- */
.event-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:26px}
.event-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  overflow:hidden;display:flex;flex-direction:column;
  box-shadow:var(--sh-card);transition:transform .3s ease,box-shadow .3s ease;
}
.event-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover)}
.event-thumb{position:relative;aspect-ratio:16/9;background:#EDEBF6;overflow:hidden}
.event-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.event-card:hover .event-thumb img{transform:scale(1.04)}
.status{
  position:absolute;top:14px;left:14px;height:26px;padding:0 13px;border-radius:var(--r-pill);
  display:inline-flex;align-items:center;font-size:13px;font-weight:700;color:#fff;
  backdrop-filter:blur(4px);
}
.status-live{background:rgba(18,183,106,.92)}
.status-soon{background:rgba(255,107,44,.94)}
.status-ended{background:rgba(74,71,99,.82)}
.event-body{padding:24px;display:flex;flex-direction:column;flex:1}
.event-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:12px;font-size:13px;color:var(--c-muted)}
.event-time{font-family:var(--font-num);color:var(--c-primary);font-weight:600;letter-spacing:.3px}
.event-body h3{font-size:20px;margin-bottom:10px}
.event-body p{font-size:15px;color:var(--c-body);margin-bottom:16px}
.progress{height:6px;border-radius:6px;background:#EDEBF6;overflow:hidden;margin-bottom:16px}
.progress span{display:block;height:100%;border-radius:6px;background:linear-gradient(90deg,var(--c-accent),var(--c-primary))}
.event-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap}
.reward{font-size:14px;color:var(--c-soft-ink);font-weight:600}

/* ---------- flow steps ---------- */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;counter-reset:step}
.flow-item{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);padding:26px 22px;position:relative}
.flow-num{
  width:38px;height:38px;border-radius:50%;background:var(--c-accent);color:#0B4A43;
  display:flex;align-items:center;justify-content:center;font-family:var(--font-num);
  font-weight:700;font-size:16px;margin-bottom:16px;box-shadow:0 8px 18px rgba(0,224,198,.32);
}
.flow-item h3{font-size:18px;margin-bottom:8px}
.flow-item p{font-size:15px;margin:0;color:var(--c-body)}

/* ---------- quick numbers ---------- */
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:34px}
.stat-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-sm);padding:22px;
}
.stat-card .num{font-family:var(--font-num);font-size:30px;font-weight:700;color:var(--c-primary);line-height:1.2}
.stat-card .lab{font-size:14px;color:var(--c-muted);margin-top:6px}

/* ---------- signup / form ---------- */
.signup{
  background:var(--g-kv);position:relative;overflow:hidden;padding:88px 0;color:#fff;
}
.signup::before{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:48px 48px;
}
.signup .container{position:relative;z-index:2}
.signup-grid{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:start}
.signup-copy h2{color:#fff;margin-bottom:16px}
.signup-copy p{color:rgba(255,255,255,.76);max-width:460px}
.signup-list{margin-top:24px}
.signup-list li{
  display:flex;gap:12px;align-items:flex-start;color:rgba(255,255,255,.86);
  font-size:15px;padding:9px 0;
}
.signup-list li::before{
  content:"";width:18px;height:18px;border-radius:50%;flex:none;margin-top:5px;
  background:rgba(0,224,198,.18);border:1px solid var(--c-accent);
  box-shadow:inset 0 0 0 4px rgba(0,224,198,.35);
}
.form-card{
  background:#fff;border-radius:var(--r-card);padding:32px;
  box-shadow:0 24px 60px rgba(9,6,26,.36);color:var(--c-body);
}
.form-card h3{margin-bottom:6px}
.form-card .form-hint{font-size:14px;color:var(--c-muted);margin-bottom:22px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{margin-bottom:18px}
.field label{display:block;font-size:14px;color:var(--c-ink);font-weight:600;margin-bottom:8px}
.field input,.field select,.field textarea{
  width:100%;min-height:48px;padding:12px 14px;border-radius:var(--r-sm);
  border:1px solid var(--c-line);background:#fff;outline:none;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{min-height:96px;resize:vertical;line-height:1.7}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(108,59,255,.12);
}
.form-note{font-size:13px;color:var(--c-muted);margin:14px 0 0}
.form-success{
  display:none;background:#E7F8F0;border:1px solid #B7E9D2;color:#0B6B45;
  border-radius:var(--r-sm);padding:16px 18px;font-size:15px;margin-top:18px;
}
.form-success.show{display:block}
.signup .btn-primary{box-shadow:0 14px 30px rgba(255,107,44,.3)}

/* ---------- faq ---------- */
.faq-wrap{max-width:840px;margin:0 auto}
.faq-item{
  background:#fff;border:1px solid var(--c-line);border-left:3px solid transparent;
  border-radius:var(--r-img);margin-bottom:14px;overflow:hidden;transition:border-color .25s ease;
}
.faq-item[open]{border-left-color:var(--c-accent)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 22px;font-size:17px;font-weight:700;color:var(--c-ink);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"";width:10px;height:10px;border-right:2px solid var(--c-primary);
  border-bottom:2px solid var(--c-primary);transform:rotate(45deg);flex:none;
  transition:transform .3s ease;margin-top:-4px;
}
.faq-item[open] summary::after{transform:rotate(-135deg);margin-top:4px}
.faq-item .faq-body{
  padding:0 22px 20px;font-size:15px;color:var(--c-body);
  animation:fadeIn .3s ease;
}
@keyframes fadeIn{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:none}}

/* ---------- bottom cta ---------- */
.bottom-cta{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:36px;display:flex;align-items:center;justify-content:space-between;gap:28px;
  box-shadow:var(--sh-card);flex-wrap:wrap;
}
.bottom-cta h3{margin-bottom:8px}
.bottom-cta p{margin:0;color:var(--c-muted);font-size:15px}
.bottom-cta .actions{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- footer ---------- */
.site-footer{background:var(--c-dark);color:rgba(255,255,255,.72);padding:64px 0 26px;border-top:1px solid rgba(255,255,255,.08)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-text{color:#fff}
.site-footer p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.66)}
.footer-note{font-size:13px;color:rgba(255,255,255,.5)}
.footer-col h4{color:#fff;font-size:16px;margin-bottom:16px}
.footer-col ul li{margin-bottom:10px}
.footer-col a{color:rgba(255,255,255,.72);font-size:14px}
.footer-col a:hover{color:var(--c-accent)}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.08);
  text-align:center;font-size:13px;color:rgba(255,255,255,.5);
}
.footer-bottom span{font-family:var(--font-num);letter-spacing:.5px}
.nav-mask{display:none}

/* ---------- responsive ---------- */
@media (max-width:1080px){
  .header-inner{gap:18px}
  .main-nav{gap:18px}
  .main-nav a{font-size:16px}
  .search-box{width:170px}
  .status-grid{grid-template-columns:1fr}
  .flow{grid-template-columns:repeat(2,1fr)}
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:900px){
  .nav-toggle{display:flex}
  .search-box{display:none}
  .site-header .btn-primary{display:none}
  .main-nav{
    position:fixed;top:0;right:0;height:100vh;width:min(84vw,340px);background:#fff;
    flex-direction:column;align-items:flex-start;gap:6px;margin:0;
    padding:92px 26px 26px;transform:translateX(104%);transition:transform .32s ease;
    box-shadow:-16px 0 40px rgba(23,18,51,.16);z-index:95;
  }
  body.nav-open .main-nav{transform:none}
  .main-nav a{font-size:17px;width:100%;padding:13px 0;border-bottom:1px solid var(--c-line)}
  .main-nav a::after{display:none}
  .drawer-search{
    display:flex;align-items:center;gap:8px;height:44px;padding:0 16px;width:100%;
    background:var(--c-bg);border-radius:var(--r-pill);margin:18px 0 20px;
  }
  .drawer-search svg{width:17px;height:17px;stroke:var(--c-muted)}
  .drawer-search input{border:0;background:none;outline:none;width:100%;font-size:14px}
  .drawer-cta{display:inline-flex!important;width:100%}
  .nav-mask{
    display:block;position:fixed;inset:0;background:rgba(20,16,43,.55);
    opacity:0;visibility:hidden;transition:.3s ease;z-index:90;
  }
  body.nav-open .nav-mask{opacity:1;visibility:visible}
  .event-grid{grid-template-columns:1fr}
  .signup-grid{grid-template-columns:1fr;gap:36px}
}
@media (max-width:768px){
  .container{padding:0 20px}
  h1{font-size:30px}
  h2{font-size:25px}
  h3{font-size:19px}
  .page-hero{padding:36px 0 52px}
  .hero-lead{font-size:16px}
  .section{padding:48px 0}
  .signup{padding:52px 0}
  .flow{grid-template-columns:1fr}
  .stat-grid{grid-template-columns:1fr 1fr}
  .form-row{grid-template-columns:1fr}
  .form-card{padding:24px}
  .bottom-cta{padding:26px}
  .bottom-cta .actions{width:100%}
  .bottom-cta .actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
}
@media (max-width:520px){
  .hero-actions .btn{width:100%}
  .stat-grid{grid-template-columns:1fr}
  .brand-text{font-size:16px}
  .event-body{padding:18px}
  .faq-item summary{padding:16px;font-size:16px}
}

/* roulang page: category3 */
:root{
  --c-primary:#6C3BFF;
  --c-primary-deep:#4A21D1;
  --c-accent:#00E0C6;
  --c-hot:#FF6B2C;
  --c-ink:#171233;
  --c-body:#4A4763;
  --c-muted:#8A86A3;
  --c-bg:#F6F5FB;
  --c-surface:#FFFFFF;
  --c-line:#E7E4F2;
  --c-dark:#14102B;
  --c-success:#12B76A;
  --c-warn:#F04438;
  --c-hot-tag:#FF3D71;
  --g-kv:linear-gradient(135deg,#14102B 0%,#241A5C 55%,#0E2E3A 100%);
  --g-btn:linear-gradient(135deg,#FF6B2C,#6C3BFF);
  --r-card:18px;
  --r-sm:12px;
  --r-pill:999px;
  --sh-rest:0 10px 30px rgba(23,18,51,.08);
  --sh-hover:0 18px 46px rgba(108,59,255,.18);
  --sh-nav:0 2px 12px rgba(23,18,51,.05);
  --sh-nav-scroll:0 6px 20px rgba(23,18,51,.10);
  --num-font:"Barlow","Chakra Petch","HarmonyOS Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"HarmonyOS Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--c-body);
  background:var(--c-bg);
}
img{max-width:100%;display:block;border-radius:14px}
a{color:var(--c-primary);text-decoration:none;transition:color .25s ease,transform .25s ease}
a:hover{color:var(--c-primary-deep)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;color:var(--c-ink);font-weight:700;line-height:1.3}
p{margin:0 0 16px}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
:focus-visible{outline:3px solid rgba(108,59,255,.35);outline-offset:2px;border-radius:8px}
.container{max-width:1200px;margin:0 auto;padding:0 32px}
.num{font-family:var(--num-font);letter-spacing:.02em}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;
  border-bottom:1px solid var(--c-line);
  box-shadow:var(--sh-nav);
  transition:box-shadow .3s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-nav-scroll)}
.header-inner{display:flex;align-items:center;gap:28px;height:74px}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand-mark{
  position:relative;width:28px;height:28px;border-radius:9px;
  background:linear-gradient(135deg,#00E0C6,#6C3BFF);
  box-shadow:0 6px 16px rgba(0,224,198,.32);
}
.brand-mark span{position:absolute;left:8px;top:8px;width:12px;height:12px;border:2px solid #fff;border-radius:4px}
.brand-text{font-size:19px;font-weight:700;color:var(--c-ink);letter-spacing:.01em}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:8px}
.main-nav a{
  position:relative;font-size:16.5px;color:var(--c-body);padding:6px 2px;
}
.main-nav a::after{
  content:"";position:absolute;left:0;right:100%;bottom:0;height:2px;
  background:var(--c-accent);transition:right .28s ease;
}
.main-nav a:hover{color:var(--c-primary)}
.main-nav a:hover::after,.main-nav a.active::after{right:0}
.main-nav a.active{color:var(--c-primary);font-weight:700}
.header-tools{display:flex;align-items:center;gap:14px;margin-left:auto}
.search-box{
  display:flex;align-items:center;gap:8px;height:42px;padding:0 16px;
  background:var(--c-bg);border:1px solid transparent;border-radius:var(--r-pill);
  transition:border-color .25s ease,box-shadow .25s ease;
}
.search-box svg{width:17px;height:17px;stroke:var(--c-muted);flex-shrink:0}
.search-box input{
  border:0;background:transparent;outline:none;width:170px;font-size:14.5px;color:var(--c-ink);
}
.search-box input::placeholder{color:var(--c-muted)}
.search-box:focus-within{border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(108,59,255,.12);background:#fff}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--c-line);
  background:#fff;cursor:pointer;padding:0;place-items:center;
}
.nav-toggle i,.nav-toggle i::before,.nav-toggle i::after{
  display:block;width:18px;height:2px;border-radius:2px;background:var(--c-ink);content:"";
}
.nav-toggle i{position:relative}
.nav-toggle i::before{position:absolute;top:-6px}
.nav-toggle i::after{position:absolute;top:6px}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:0;cursor:pointer;font-weight:700;font-size:15.5px;
  padding:13px 28px;border-radius:var(--r-sm);
  transition:transform .25s ease,box-shadow .25s ease,filter .25s ease,background-color .25s ease;
}
.btn-sm{padding:10px 20px;font-size:14.5px}
.btn-primary{background:var(--g-btn);color:#fff;box-shadow:0 8px 20px rgba(255,107,44,.24)}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 12px 28px rgba(255,107,44,.32);color:#fff}
.btn-primary:active{transform:translateY(0)}
.btn-primary:disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}
.btn-ghost{background:#fff;color:var(--c-primary);border:1.5px solid var(--c-primary)}
.btn-ghost:hover{background:rgba(108,59,255,.08);color:var(--c-primary-deep);transform:translateY(-2px)}
.btn-line{background:transparent;color:var(--c-accent);border:1.5px solid var(--c-accent)}
.btn-line:hover{background:rgba(0,224,198,.14);color:#fff;transform:translateY(-2px)}
.link-more{font-weight:700;display:inline-flex;align-items:center;gap:6px}
.link-more span{transition:transform .25s ease;display:inline-block}
.link-more:hover span{transform:translateX(4px)}

/* ---------- crumb ---------- */
.crumb{padding:22px 0 0;font-size:13.5px;color:var(--c-muted)}
.crumb ol{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.crumb li::after{content:"/";margin-left:8px;color:#CFCBE2}
.crumb li:last-child::after{content:""}
.crumb a{color:var(--c-muted)}
.crumb a:hover{color:var(--c-primary)}
.crumb strong{color:var(--c-ink);font-weight:600}

/* ---------- hero ---------- */
.cat-hero{
  position:relative;margin-top:20px;border-radius:24px;overflow:hidden;
  background-image:linear-gradient(rgba(20,16,43,.82),rgba(20,16,43,.86)),url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
  padding:60px 46px 52px;
}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:46px 46px;pointer-events:none;
}
.cat-hero-inner{position:relative;z-index:2;max-width:820px}
.cat-tag{
  display:inline-flex;align-items:center;gap:8px;height:26px;padding:0 14px;border-radius:var(--r-pill);
  background:rgba(0,224,198,.14);color:var(--c-accent);font-size:13px;font-weight:700;letter-spacing:.04em;
  border:1px solid rgba(0,224,198,.35);
}
.cat-hero h1{
  color:#fff;font-size:42px;line-height:1.2;margin:20px 0 16px;letter-spacing:-.01em;
}
.cat-hero p.lead{color:rgba(255,255,255,.82);font-size:16.5px;max-width:700px;margin-bottom:26px}
.hero-facts{display:flex;flex-wrap:wrap;gap:12px}
.hero-facts span{
  display:inline-flex;align-items:center;gap:8px;padding:9px 16px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);
  color:rgba(255,255,255,.9);font-size:13.5px;
}
.hero-facts b{color:var(--c-accent);font-family:var(--num-font);font-size:15px}

/* ---------- filter ---------- */
.filter-bar{
  margin-top:26px;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:18px 22px;box-shadow:var(--sh-rest);
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;
}
.filter-bar .filter-label{font-size:14px;color:var(--c-muted);margin-right:4px}
.filter-btn{
  border:1px solid var(--c-line);background:#fff;color:var(--c-body);
  padding:9px 18px;border-radius:var(--r-pill);cursor:pointer;font-size:14.5px;
  transition:all .25s ease;
}
.filter-btn:hover{border-color:var(--c-primary);color:var(--c-primary)}
.filter-btn.active{background:var(--c-primary);border-color:var(--c-primary);color:#fff;font-weight:700;box-shadow:0 8px 18px rgba(108,59,255,.24)}
.filter-count{margin-left:auto;font-size:13.5px;color:var(--c-muted)}
.filter-count b{font-family:var(--num-font);color:var(--c-primary);font-size:16px}

/* ---------- sections ---------- */
.section{padding:74px 0 0}
.section-head{max-width:760px;margin-bottom:32px}
.section-head h2{font-size:32px;line-height:1.3}
.section-head p{margin:12px 0 0;color:var(--c-muted);font-size:15.5px}
.eyebrow{
  display:inline-block;font-family:var(--num-font);font-size:13px;font-weight:700;
  color:var(--c-primary);letter-spacing:.16em;margin-bottom:10px;
}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.step{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:28px 26px;box-shadow:var(--sh-rest);position:relative;transition:transform .3s ease,box-shadow .3s ease;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--sh-hover)}
.step .step-no{
  width:44px;height:44px;border-radius:50%;background:var(--c-accent);color:#08322C;
  display:grid;place-items:center;font-family:var(--num-font);font-weight:700;font-size:18px;
  box-shadow:0 8px 18px rgba(0,224,198,.35);
}
.step h3{font-size:20px;margin:18px 0 8px}
.step p{margin:0;font-size:15px;color:var(--c-body)}
.step .step-time{display:block;margin-top:16px;font-size:13px;color:var(--c-muted);font-family:var(--num-font)}

/* ---------- entry list ---------- */
.entry-list{display:grid;gap:16px}
.entry{
  display:grid;grid-template-columns:64px 1fr auto;gap:22px;align-items:start;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:24px 26px;box-shadow:var(--sh-rest);
  transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.entry:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:#D8CFFB}
.entry-no{
  width:52px;height:52px;border-radius:14px;background:#F1EDFF;color:var(--c-primary-deep);
  display:grid;place-items:center;font-family:var(--num-font);font-weight:700;font-size:19px;
}
.entry-body h3{font-size:19.5px;margin-bottom:8px;transition:color .25s ease}
.entry:hover .entry-body h3{color:var(--c-primary)}
.entry-body p{margin:0;font-size:15px;color:var(--c-body)}
.entry-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
.chip{
  display:inline-flex;align-items:center;height:25px;padding:0 12px;border-radius:var(--r-pill);
  background:#F1EDFF;color:var(--c-primary-deep);font-size:12.5px;font-weight:600;
}
.chip.hot{background:rgba(255,61,113,.12);color:var(--c-hot-tag)}
.chip.ok{background:rgba(18,183,106,.12);color:var(--c-success)}
.entry-arrow{
  align-self:center;width:40px;height:40px;border-radius:50%;border:1.5px solid var(--c-line);
  display:grid;place-items:center;color:var(--c-primary);font-size:16px;background:#fff;
  transition:all .28s ease;
}
.entry:hover .entry-arrow{background:var(--c-primary);border-color:var(--c-primary);color:#fff;transform:translateX(4px)}
.entry.is-hidden{display:none}

/* ---------- split feature ---------- */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center}
.split-media{border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-rest);background:#EDEBF6}
.split-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:0}
.split h2{font-size:30px;margin-bottom:14px}
.split ul{margin-top:20px;display:grid;gap:12px}
.split ul li{
  position:relative;padding-left:30px;font-size:15.3px;color:var(--c-body);
}
.split ul li::before{
  content:"";position:absolute;left:0;top:11px;width:14px;height:14px;border-radius:5px;
  background:rgba(0,224,198,.22);border:2px solid var(--c-accent);
}

/* ---------- faq ---------- */
.faq-wrap{max-width:860px;margin:0 auto}
.faq-item{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:14px;
  margin-bottom:12px;box-shadow:var(--sh-rest);overflow:hidden;transition:border-color .25s ease;
}
.faq-item[open]{border-color:#D8CFFB;border-left:3px solid var(--c-accent)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 24px;font-size:17px;font-weight:700;color:var(--c-ink);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"";width:10px;height:10px;border-right:2px solid var(--c-primary);border-bottom:2px solid var(--c-primary);
  transform:rotate(45deg);transition:transform .3s ease;flex-shrink:0;margin-top:-4px;
}
.faq-item[open] summary::after{transform:rotate(-135deg);margin-top:4px}
.faq-item .faq-answer{
  padding:0 24px 22px;font-size:15.3px;color:var(--c-body);animation:fadeUp .32s ease;
}
@keyframes fadeUp{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:none}}

/* ---------- dark cta ---------- */
.cta-section{
  margin-top:78px;background:var(--g-kv);
  padding:78px 0;position:relative;overflow:hidden;color:#fff;
}
.cta-section::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:48px 48px;
}
.cta-grid{position:relative;z-index:2;display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.cta-copy h2{color:#fff;font-size:32px;margin-bottom:16px}
.cta-copy p{color:rgba(255,255,255,.78);font-size:15.8px;max-width:520px}
.cta-points{margin-top:24px;display:grid;gap:10px}
.cta-points li{color:rgba(255,255,255,.86);font-size:15px;padding-left:26px;position:relative}
.cta-points li::before{
  content:"";position:absolute;left:0;top:10px;width:12px;height:12px;border-radius:50%;
  background:var(--c-accent);box-shadow:0 0 0 4px rgba(0,224,198,.22);
}
.form-card{
  background:#fff;border-radius:20px;padding:34px 32px;box-shadow:0 26px 60px rgba(0,0,0,.28);
}
.form-card h3{font-size:21px;margin-bottom:6px}
.form-card .form-sub{font-size:14px;color:var(--c-muted);margin-bottom:22px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:7px;margin-bottom:16px}
.field label{font-size:14px;color:var(--c-body);font-weight:600}
.field input,.field select{
  height:48px;border-radius:var(--r-sm);border:1px solid var(--c-line);
  padding:0 14px;background:#fff;color:var(--c-ink);outline:none;
  transition:border-color .22s ease,box-shadow .22s ease;
}
.field input:focus,.field select:focus{border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(108,59,255,.12)}
.field input::placeholder{color:#B4B0C7}
.form-card .btn{width:100%}
.form-note{margin:14px 0 0;font-size:12.6px;color:var(--c-muted);line-height:1.7}
.form-success{
  display:none;margin-top:16px;background:#EAFBF2;border:1px solid rgba(18,183,106,.3);
  color:#0B7B48;border-radius:var(--r-sm);padding:14px 16px;font-size:14px;
}
.form-success.show{display:block}

/* ---------- footer ---------- */
.site-footer{
  background:var(--c-dark);color:rgba(255,255,255,.72);
  border-top:1px solid rgba(255,255,255,.08);
  padding:66px 0 26px;font-size:14.5px;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-brand .brand-text{color:#fff;font-size:18px}
.site-footer p{color:rgba(255,255,255,.72);font-size:14px;line-height:1.85}
.footer-note{color:rgba(255,255,255,.5);font-size:13px}
.footer-col h4{color:#fff;font-size:15.5px;margin-bottom:16px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{color:rgba(255,255,255,.72)}
.footer-col a:hover{color:var(--c-accent)}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.08);
  text-align:center;font-size:13px;color:rgba(255,255,255,.5);
}
.footer-bottom span{font-family:var(--num-font);color:rgba(255,255,255,.62)}

/* ---------- mobile drawer ---------- */
@media (max-width:1024px){
  .container{padding:0 24px}
  .header-inner{gap:18px}
  .main-nav{gap:18px}
  .search-box input{width:120px}
  .cat-hero h1{font-size:36px}
  .steps{grid-template-columns:1fr 1fr}
  .split{grid-template-columns:1fr;gap:32px}
  .cta-grid{grid-template-columns:1fr;gap:36px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
}
@media (max-width:768px){
  .container{padding:0 16px}
  .header-inner{height:66px}
  .brand-text{font-size:16.5px}
  .search-box{display:none}
  .header-tools .btn-primary{display:none}
  .nav-toggle{display:grid}
  .main-nav{
    position:fixed;top:0;right:0;height:100vh;width:min(300px,84vw);
    background:#fff;flex-direction:column;align-items:flex-start;gap:6px;
    padding:88px 24px 32px;margin:0;box-shadow:-12px 0 40px rgba(20,16,43,.18);
    transform:translateX(105%);transition:transform .32s ease;z-index:70;
  }
  .main-nav.open{transform:translateX(0)}
  .main-nav a{width:100%;font-size:17px;padding:12px 0;border-bottom:1px solid var(--c-line)}
  .main-nav a::after{display:none}
  .nav-mask{
    position:fixed;inset:0;background:rgba(20,16,43,.55);opacity:0;pointer-events:none;
    transition:opacity .3s ease;z-index:65;
  }
  .nav-mask.show{opacity:1;pointer-events:auto}
  .cat-hero{margin-top:16px;padding:40px 22px 36px;border-radius:18px}
  .cat-hero h1{font-size:29px}
  .section{padding:48px 0 0}
  .section-head h2{font-size:25px}
  .steps{grid-template-columns:1fr}
  .entry{grid-template-columns:52px 1fr;gap:16px;padding:20px 18px}
  .entry-arrow{display:none}
  .entry-body h3{font-size:18px}
  .split h2{font-size:25px}
  .form-card{padding:26px 20px}
  .form-row{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .filter-count{margin-left:0;width:100%}
  .faq-item summary{font-size:16px;padding:16px 18px}
  .faq-item .faq-answer{padding:0 18px 18px}
}
@media (max-width:520px){
  .cat-hero h1{font-size:25px}
  .btn{padding:12px 20px;width:100%}
  .header-tools .btn-sm{display:none}
  .hero-facts span{font-size:12.5px}
  .entry-no{width:44px;height:44px;font-size:17px;border-radius:12px}
}