/* roulang page: index */
:root{
  --bg-0:#0B0913;
  --bg-1:#141024;
  --bg-2:#1C1732;
  --brand:#B8FF2E;
  --brand-ink:#0B0913;
  --accent:#FF3D7F;
  --cyan:#4DD9FF;
  --text:#E8E6F2;
  --text-2:#A9A5BF;
  --text-3:#6E6A85;
  --line:rgba(255,255,255,.08);
  --card-line:rgba(255,255,255,.10);
  --glass:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  --r-lg:16px;
  --r-md:12px;
  --r-pill:999px;
  --shadow:0 8px 24px rgba(0,0,0,.45);
  --shadow-lift:0 16px 48px rgba(0,0,0,.55);
  --glow:0 0 0 1px rgba(184,255,46,.35),0 8px 28px rgba(184,255,46,.22);
  --font:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background-image:radial-gradient(rgba(255,255,255,.055) 1px,transparent 1px);
  background-size:22px 22px;
  opacity:.55;
  pointer-events:none;
  z-index:0;
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:6px}
::selection{background:rgba(184,255,46,.28);color:#fff}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;position:relative;z-index:1}
.section{padding:88px 0;position:relative;z-index:1}
.section--tight{padding:72px 0}
.divider{height:1px;background:linear-gradient(90deg,transparent,rgba(184,255,46,.45),transparent)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 24px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;letter-spacing:.01em;line-height:1;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,border-color .18s ease,color .18s ease;
  white-space:nowrap;
}
.btn-lg{height:52px;padding:0 30px;font-size:16px}
.btn-primary{background:var(--brand);color:var(--brand-ink);box-shadow:var(--glow)}
.btn-primary:hover{background:#c7ff55;transform:translateY(-2px);box-shadow:0 0 0 1px rgba(184,255,46,.5),0 12px 34px rgba(184,255,46,.3)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:rgba(255,255,255,.03);color:var(--text);border:1px solid rgba(255,255,255,.16)}
.btn-ghost:hover{border-color:rgba(184,255,46,.6);color:var(--brand);transform:translateY(-2px)}
.btn-text{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--text-2);transition:color .18s ease}
.btn-text svg{transition:transform .18s ease}
.btn-text:hover{color:var(--brand)}
.btn-text:hover svg{transform:translateX(4px)}

/* ---------- badges / tags ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 10px;
  border-radius:var(--r-pill);font-size:12px;font-weight:600;line-height:1;letter-spacing:.02em;
}
.badge-accent{color:var(--accent);border:1px solid rgba(255,61,127,.55);background:rgba(255,61,127,.10)}
.badge-brand{color:var(--brand);border:1px solid rgba(184,255,46,.5);background:rgba(184,255,46,.08)}
.badge-soft{color:var(--text-2);background:rgba(255,255,255,.06)}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(11,9,19,.72);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border-bottom:1px solid var(--line);
  transition:background .2s ease,box-shadow .2s ease;
}
.site-header::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(184,255,46,.75),transparent);
}
.site-header.is-scrolled{background:rgba(11,9,19,.92);box-shadow:0 10px 30px rgba(0,0,0,.45)}
.nav-inner{display:flex;align-items:center;gap:20px;height:74px}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-name{font-size:18px;font-weight:700;letter-spacing:-.01em;color:var(--text)}
.brand-name em{font-style:normal;color:var(--brand)}
.brand-dot{width:4px;height:4px;border-radius:50%;background:var(--brand);opacity:.8}
.brand-sub{font-size:13px;color:var(--text-3);font-weight:500}

.search{position:relative;flex:1 1 auto;max-width:520px;min-width:200px}
.search svg.search-icon{position:absolute;left:16px;top:50%;transform:translateY(-50%);color:var(--cyan);pointer-events:none}
.search input{
  width:100%;height:44px;padding:0 74px 0 44px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--card-line);border-radius:var(--r-pill);
  color:var(--text);font-size:14px;
  transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;
}
.search input::placeholder{color:var(--text-3)}
.search input:focus{
  outline:none;border-color:var(--brand);background:rgba(184,255,46,.05);
  box-shadow:0 0 0 3px rgba(184,255,46,.18);
}
.search input:focus + .search-kbd{color:var(--brand);border-color:rgba(184,255,46,.45)}
.search-kbd{
  position:absolute;right:10px;top:50%;transform:translateY(-50%);
  height:24px;min-width:26px;display:inline-flex;align-items:center;justify-content:center;
  padding:0 7px;border-radius:7px;border:1px solid var(--card-line);
  font-size:12px;color:var(--text-3);background:rgba(255,255,255,.03);
}
.search-icon{color:var(--cyan)}
.search:focus-within svg.search-icon{color:var(--brand)}

.nav-links{display:flex;align-items:center;gap:20px;flex-shrink:0}
.nav-link{position:relative;font-size:14px;font-weight:500;color:var(--text-2);padding:6px 0;transition:color .18s ease}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .2s ease;
}
.nav-link:hover{color:var(--text)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--brand)}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-cta{display:flex;align-items:center;gap:10px;flex-shrink:0}
.nav-cta .btn{height:40px;padding:0 20px;font-size:14px}

.nav-burger{display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--card-line);align-items:center;justify-content:center;color:var(--text)}
.nav-burger:hover{border-color:rgba(184,255,46,.5);color:var(--brand)}

/* mobile drawer */
.drawer{
  position:fixed;inset:0;z-index:120;display:none;
  background:rgba(11,9,19,.94);
  backdrop-filter:blur(16px) saturate(120%);
  -webkit-backdrop-filter:blur(16px) saturate(120%);
  padding:22px 20px 32px;overflow-y:auto;
}
.drawer.is-open{display:block;animation:drawerIn .2s ease both}
@keyframes drawerIn{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:translateY(0)}}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-close{width:38px;height:38px;border-radius:10px;border:1px solid var(--card-line);display:flex;align-items:center;justify-content:center;color:var(--text)}
.drawer .search{max-width:none;margin-bottom:22px}
.drawer-list{display:flex;flex-direction:column;gap:4px;margin-bottom:24px}
.drawer-item{display:flex;align-items:center;justify-content:space-between;padding:14px 4px;border-bottom:1px solid var(--line);font-size:16px;color:var(--text)}
.drawer-item span.idx{font-size:12px;color:var(--brand);margin-right:12px;font-variant-numeric:tabular-nums}
.drawer-item svg{color:var(--text-3)}
.drawer-item:hover{color:var(--brand)}
.drawer-actions{display:grid;gap:12px}
.drawer-actions .btn{width:100%}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;padding:88px 0 72px}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center right;
  opacity:.62;
  -webkit-mask-image:linear-gradient(90deg,transparent 0%,rgba(0,0,0,.15) 34%,rgba(0,0,0,.95) 78%);
  mask-image:linear-gradient(90deg,transparent 0%,rgba(0,0,0,.15) 34%,rgba(0,0,0,.95) 78%);
  z-index:0;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,9,19,.55) 0%,rgba(11,9,19,.2) 45%,rgba(11,9,19,.9) 100%);
  z-index:0;
}
.hero .container{z-index:2}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:40px;align-items:center}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;margin-bottom:20px}
.hero-title{
  font-size:clamp(28px,4.2vw,52px);line-height:1.15;font-weight:700;letter-spacing:-.02em;
  margin-bottom:20px;max-width:15em;
}
.hero-title mark{background:none;color:var(--brand)}
.hero-sub{font-size:17px;line-height:1.8;color:var(--text-2);max-width:34em;margin-bottom:30px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:40px}
.hero-stats{display:flex;flex-wrap:wrap;gap:44px}
.stat-num{font-size:28px;font-weight:700;line-height:1.2;color:var(--text);font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.stat-num em{font-style:normal;font-size:15px;color:var(--brand);margin-left:4px;font-weight:600}
.stat-label{font-size:13px;color:var(--text-3);margin-top:4px}

.hero-visual{position:relative;min-height:400px;display:flex;align-items:center;justify-content:center}
.float-card{
  position:relative;width:100%;max-width:340px;padding:26px 24px;
  border-radius:var(--r-lg);border:1px solid var(--card-line);
  background:linear-gradient(160deg,rgba(255,255,255,.09),rgba(255,255,255,.03));
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow-lift);
}
.float-badge{position:absolute;top:-12px;right:18px}
.float-num{font-size:52px;font-weight:700;line-height:1;color:var(--brand);font-variant-numeric:tabular-nums;letter-spacing:-.03em}
.float-num span{font-size:18px;color:var(--text-2);font-weight:600;margin-left:6px}
.float-desc{margin-top:14px;font-size:14px;color:var(--text-2);line-height:1.75}
.float-line{height:1px;background:var(--line);margin:16px 0}
.float-meta{display:flex;justify-content:space-between;font-size:13px;color:var(--text-3)}

/* ---------- section head ---------- */
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:40px}
.section-title{font-size:clamp(22px,2.6vw,34px);font-weight:700;letter-spacing:-.015em;line-height:1.25}
.section-desc{font-size:15px;color:var(--text-2);margin-top:10px;max-width:44em}

/* ---------- ladder ---------- */
.ladder{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;align-items:end}
.ladder-step{
  position:relative;display:flex;flex-direction:column;justify-content:space-between;
  padding:22px 20px;border-radius:var(--r-lg);border:1px solid var(--card-line);
  background:var(--glass);backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.ladder-step:hover{transform:translateY(-4px);border-color:rgba(184,255,46,.35)}
.ladder-step:nth-child(1){min-height:150px}
.ladder-step:nth-child(2){min-height:178px}
.ladder-step:nth-child(3){min-height:206px}
.ladder-step:nth-child(4){min-height:234px}
.ladder-step.is-current{border-color:rgba(184,255,46,.55);box-shadow:0 0 0 1px rgba(184,255,46,.3),0 10px 30px rgba(184,255,46,.12)}
.ladder-step::after{
  content:"";position:absolute;right:-16px;top:50%;width:12px;height:0;
  border-top:2px dashed rgba(184,255,46,.45);
}
.ladder-step:last-child::after{display:none}
.ladder-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.ladder-idx{font-size:13px;font-weight:700;color:var(--brand);letter-spacing:.08em;font-variant-numeric:tabular-nums}
.ladder-cond{font-size:12px;color:var(--text-3)}
.ladder-title{font-size:18px;font-weight:600;margin-bottom:10px}
.ladder-list{display:flex;flex-direction:column;gap:6px;margin-bottom:16px}
.ladder-list li{font-size:13.5px;color:var(--text-2);line-height:1.6;padding-left:14px;position:relative}
.ladder-list li::before{content:"";position:absolute;left:0;top:9px;width:5px;height:5px;border-radius:50%;background:var(--brand);opacity:.75}
.ladder-foot{margin-top:auto}

/* ---------- plans ---------- */
.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-bottom:24px}
.plan-card{
  position:relative;padding:28px 24px;border-radius:var(--r-lg);
  border:1px solid var(--card-line);background:var(--glass);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.plan-card:hover{transform:translateY(-4px);border-color:rgba(184,255,46,.35)}
.plan-card.is-featured{border-color:rgba(184,255,46,.55);box-shadow:0 0 0 1px rgba(184,255,46,.28)}
.plan-flag{position:absolute;top:-12px;left:24px}
.plan-name{font-size:19px;font-weight:600;margin-bottom:6px}
.plan-note{font-size:13.5px;color:var(--text-3);margin-bottom:18px}
.plan-price{font-size:32px;font-weight:700;color:var(--brand);line-height:1.1;font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.plan-price small{font-size:13px;color:var(--text-3);font-weight:500;margin-left:6px}
.plan-features{display:flex;flex-direction:column;gap:8px;margin:20px 0 22px}
.plan-features li{font-size:14px;color:var(--text-2);padding-left:20px;position:relative}
.plan-features li::before{
  content:"";position:absolute;left:0;top:8px;width:10px;height:10px;
  border-radius:3px;border:1px solid rgba(184,255,46,.6);background:rgba(184,255,46,.12);
}
.plan-card .btn{width:100%}

.spec-wrap{border:1px solid var(--card-line);border-radius:var(--r-lg);overflow-x:auto;background:rgba(20,16,36,.6)}
.spec-table{min-width:660px}
.spec-row{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;align-items:center;padding:14px 22px;border-top:1px solid rgba(255,255,255,.06);font-size:14px}
.spec-row:first-child{border-top:0;position:sticky;top:0;background:rgba(28,23,50,.92);font-weight:600;font-size:13.5px;color:var(--text-2);letter-spacing:.02em}
.spec-row span:first-child{color:var(--text-2)}
.spec-row span{color:var(--text)}
.spec-row span:nth-child(3){color:var(--brand)}

/* ---------- countdown ---------- */
.countdown-band{
  position:relative;padding:34px 36px;border-radius:var(--r-lg);
  background:linear-gradient(90deg,rgba(184,255,46,.10),rgba(184,255,46,.03));
  border:1px solid rgba(184,255,46,.22);
  display:grid;grid-template-columns:1fr auto auto;gap:28px;align-items:center;
}
.countdown-band::before,.countdown-band::after{
  content:"";position:absolute;top:14px;bottom:14px;width:3px;border-radius:3px;background:var(--brand);
}
.countdown-band::before{left:12px}
.countdown-band::after{right:12px}
.cd-title{font-size:22px;font-weight:700;letter-spacing:-.01em;margin-bottom:6px}
.cd-desc{font-size:14px;color:var(--text-2)}
.timer{display:flex;align-items:center;gap:8px}
.timer-cell{
  min-width:64px;padding:10px 6px;text-align:center;border-radius:var(--r-md);
  background:rgba(11,9,19,.6);border:1px solid var(--card-line);
}
.timer-cell b{display:block;font-size:28px;font-weight:700;line-height:1.1;color:var(--brand);font-variant-numeric:tabular-nums}
.timer-cell i{display:block;font-style:normal;font-size:11px;color:var(--text-3);margin-top:4px;letter-spacing:.1em}
.timer-sep{color:var(--accent);font-size:24px;font-weight:700;line-height:1}

/* ---------- news list ---------- */
.news-list{display:flex;flex-direction:column}
.news-row{
  display:grid;grid-template-columns:200px 1fr;gap:22px;align-items:center;
  padding:22px 4px;border-top:1px solid rgba(255,255,255,.06);
  transition:background .18s ease;
}
.news-row:first-child{border-top:0}
.news-row:hover{background:rgba(255,255,255,.025)}
.news-thumb{
  position:relative;aspect-ratio:16/9;border-radius:var(--r-md);overflow:hidden;
  background:var(--bg-2);border:1px solid rgba(255,255,255,.08);
}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.news-row:hover .news-thumb img{transform:scale(1.04)}
.news-body{min-width:0}
.news-top{display:flex;align-items:center;gap:12px;margin-bottom:8px}
.news-title{font-size:18px;font-weight:600;line-height:1.5;margin-bottom:6px;color:var(--text);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color .18s ease}
.news-row:hover .news-title{color:var(--brand)}
.news-summary{font-size:14px;color:var(--text-2);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-time{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--text-3);margin-top:10px}
.news-time svg{color:var(--text-3)}
.empty-state{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  padding:64px 20px;border:1px dashed var(--card-line);border-radius:var(--r-lg);
  color:var(--text-3);text-align:center;
}
.empty-state svg{color:var(--text-3);opacity:.8}
.empty-state p{font-size:14px}

/* ---------- consult ---------- */
.consult-grid{display:grid;grid-template-columns:5fr 6fr;gap:48px;align-items:start}
.consult-points{display:flex;flex-direction:column;gap:18px;margin-top:28px}
.consult-point{display:flex;gap:14px;align-items:flex-start}
.point-icon{
  flex:none;width:38px;height:38px;border-radius:11px;display:flex;align-items:center;justify-content:center;
  border:1px solid rgba(184,255,46,.3);background:rgba(184,255,46,.08);color:var(--brand);
}
.point-title{font-size:15px;font-weight:600;margin-bottom:4px}
.point-text{font-size:14px;color:var(--text-2);line-height:1.7}
.consult-link{margin-top:26px}

.form-card{
  padding:28px;border-radius:var(--r-lg);border:1px solid var(--card-line);
  background:var(--glass);backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);box-shadow:var(--shadow);
}
.field{margin-bottom:18px}
.field label{display:block;font-size:13px;color:var(--text-2);margin-bottom:8px;font-weight:500}
.field input,.field select,.field textarea{
  width:100%;height:44px;padding:0 14px;border-radius:var(--r-md);
  background:rgba(11,9,19,.6);border:1px solid var(--card-line);color:var(--text);
  font-size:14px;transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;
}
.field textarea{height:auto;min-height:96px;padding:12px 14px;resize:vertical;line-height:1.7}
.field select{appearance:none;background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%23A9A5BF' stroke-width='2' stroke-linecap='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3)}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(184,255,46,.16);
}
.field.has-error input,.field.has-error select,.field.has-error textarea{border-color:var(--accent)}
.err-msg{display:none;font-size:13px;color:var(--accent);margin-top:6px}
.field.has-error .err-msg{display:block}
.check-row{display:flex;align-items:flex-start;gap:10px;margin:6px 0 20px}
.check-row input{width:16px;height:16px;margin-top:4px;accent-color:var(--brand);flex:none}
.check-row label{font-size:13px;color:var(--text-2);line-height:1.6}
.check-row a{color:var(--brand)}
.form-card .btn{width:100%}
.form-msg{display:none;margin-top:14px;padding:12px 14px;border-radius:var(--r-md);font-size:13.5px;
  background:rgba(184,255,46,.08);border-left:3px solid var(--brand);color:var(--text-2)}
.form-msg.is-visible{display:block}

/* ---------- faq ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px}
.faq-item{
  border-radius:var(--r-lg);border:1px solid var(--card-line);background:rgba(255,255,255,.03);
  transition:border-color .18s ease,background .18s ease;
}
.faq-item:hover{border-color:rgba(184,255,46,.32)}
.faq-item.is-open{border-color:rgba(184,255,46,.42);background:rgba(184,255,46,.045)}
.faq-btn{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;text-align:left;font-size:16px;font-weight:600;color:var(--text);
}
.faq-ico{flex:none;width:22px;height:22px;position:relative;color:var(--brand);transition:transform .18s ease}
.faq-ico::before,.faq-ico::after{content:"";position:absolute;background:currentColor;border-radius:2px}
.faq-ico::before{left:0;right:0;top:10px;height:2px}
.faq-ico::after{top:0;bottom:0;left:10px;width:2px;transition:opacity .18s ease,transform .18s ease}
.faq-item.is-open .faq-ico{transform:rotate(180deg)}
.faq-item.is-open .faq-ico::after{opacity:0}
.faq-body{display:grid;grid-template-rows:0fr;transition:grid-template-rows .24s ease}
.faq-item.is-open .faq-body{grid-template-rows:1fr}
.faq-body-inner{overflow:hidden}
.faq-body p{padding:0 22px 20px;font-size:14px;line-height:1.85;color:var(--text-2)}

/* ---------- cta strip ---------- */
.cta-strip{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  padding:34px 36px;border-radius:var(--r-lg);border:1px solid rgba(184,255,46,.22);
  background:linear-gradient(120deg,rgba(184,255,46,.10),rgba(255,61,127,.06));
}
.cta-strip h3{font-size:22px;font-weight:700;letter-spacing:-.01em;margin-bottom:6px}
.cta-strip p{font-size:14px;color:var(--text-2)}

/* ---------- footer ---------- */
.site-footer{position:relative;z-index:1;border-top:1px solid var(--line);background:var(--bg-0);padding:64px 0 0;margin-top:8px}
.footer-top{display:grid;grid-template-columns:1.4fr 2fr;gap:48px;padding-bottom:44px}
.footer-brand{font-size:18px;font-weight:700;margin-bottom:12px}
.footer-brand em{font-style:normal;color:var(--brand)}
.footer-desc{font-size:14px;color:var(--text-3);line-height:1.8;max-width:30em;margin-bottom:18px}
.footer-search{max-width:320px}
.footer-search .search{max-width:none}
.footer-cols{display:grid;grid-template-columns:repeat(3,1fr);gap:32px}
.footer-col h4{font-size:14px;font-weight:600;color:var(--text);margin-bottom:16px;letter-spacing:.02em}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;color:var(--text-2);transition:color .18s ease,transform .18s ease;display:inline-block}
.footer-col a:hover{color:var(--brand);transform:translateX(2px)}
.footer-info{border-top:1px solid var(--line);padding:24px 0;display:flex;flex-wrap:wrap;gap:12px 32px;font-size:13px;color:var(--text-3)}
.footer-info span{display:inline-flex;align-items:center;gap:8px}
.footer-bottom{border-top:1px solid var(--line);padding:20px 0 28px;display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;font-size:13px;color:var(--text-3)}
.footer-bottom a{color:var(--text-3)}
.footer-bottom a:hover{color:var(--brand)}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .container{padding:0 32px}
  .nav-links{gap:14px}
  .search{max-width:380px}
  .hero-grid{grid-template-columns:6fr 4fr}
}
@media (max-width:1023px){
  .nav-links,.nav-cta .btn-ghost{display:none}
  .nav-burger{display:flex}
  .hero{padding:64px 0 56px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-visual{min-height:300px;justify-content:flex-start}
  .hero-sub{font-size:16px}
  .ladder{grid-template-columns:1fr 1fr;align-items:stretch}
  .ladder-step{min-height:120px!important}
  .ladder-step::after{display:none}
  .plans{grid-template-columns:repeat(3,1fr);gap:14px}
  .plan-card{padding:22px 18px}
  .consult-grid{grid-template-columns:1fr;gap:32px}
  .footer-top{grid-template-columns:1fr;gap:32px}
  .news-row{grid-template-columns:140px 1fr;gap:16px}
  .countdown-band{grid-template-columns:1fr;gap:20px}
  .cta-strip{flex-direction:column;align-items:flex-start}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .section{padding:56px 0}
  .nav-inner{height:auto;flex-wrap:wrap;padding:12px 0;gap:12px}
  .brand{order:1}
  .nav-burger{order:2;margin-left:auto;display:flex}
  .nav-cta{display:none}
  .search{order:3;flex:1 1 100%;max-width:none}
  .search input{height:42px;border-radius:12px}
  .hero-title{font-size:28px}
  .hero-stats{gap:28px}
  .stat-num{font-size:24px}
  .plans{grid-template-columns:1fr}
  .ladder{grid-template-columns:1fr}
  .news-row{grid-template-columns:1fr;gap:14px}
  .news-thumb{max-width:100%}
  .footer-cols{grid-template-columns:1fr 1fr;gap:24px}
  .timer-cell{min-width:52px;padding:8px 4px}
  .timer-cell b{font-size:22px}
  .countdown-band{padding:26px 22px}
  .faq-btn{font-size:15px;padding:16px 18px}
  .faq-body p{padding:0 18px 18px}
  .cta-strip{padding:26px 22px}
  .form-card{padding:22px}
}
@media (max-width:519px){
  body{font-size:15px;line-height:1.85}
  .hero-cta{flex-direction:column;align-items:stretch}
  .hero-cta .btn{width:100%}
  .hero-stats{gap:20px;flex-wrap:wrap}
  .footer-cols{grid-template-columns:1fr}
  .btn{width:auto}
  .form-card .btn,.drawer-actions .btn{width:100%}
  .plan-card .btn{width:100%}
  .timer{gap:5px}
  .timer-sep{font-size:18px}
}

/* roulang page: article */
:root{
  --bg-0:#0B0913;
  --bg-1:#141024;
  --bg-2:#1C1732;
  --brand:#B8FF2E;
  --brand-ink:#0B0913;
  --accent:#FF3D7F;
  --cyan:#4DD9FF;
  --text:#E8E6F2;
  --text-2:#A9A5BF;
  --text-3:#6E6A85;
  --line:rgba(255,255,255,.08);
  --card-line:rgba(255,255,255,.10);
  --radius:16px;
  --radius-sm:12px;
  --shadow:0 8px 24px rgba(0,0,0,.45);
  --shadow-lg:0 16px 48px rgba(0,0,0,.55);
  --glow:0 0 0 1px rgba(184,255,46,.35), 0 8px 28px rgba(184,255,46,.22);
  --max:1200px;
  --ease:180ms ease;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  font-family:"Inter","PingFang SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:
    radial-gradient(circle at 1px 1px, rgba(255,255,255,.03) 1px, transparent 0) 0 0/22px 22px,
    radial-gradient(1100px 520px at 78% -8%, rgba(184,255,46,.09), transparent 62%),
    radial-gradient(900px 480px at 6% 4%, rgba(77,217,255,.06), transparent 60%),
    var(--bg-0);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;top:0;left:0;right:0;height:1px;z-index:120;
  background:linear-gradient(90deg,transparent,rgba(184,255,46,.85),transparent);
  pointer-events:none;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,textarea,select{font:inherit;color:inherit}
ul,ol{list-style:none}
h1,h2,h3,h4{line-height:1.25;letter-spacing:-.01em}
::selection{background:rgba(184,255,46,.28);color:#fff}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 24px}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(11,9,19,.82);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  backdrop-filter:blur(14px) saturate(120%);
  border-bottom:1px solid var(--line);
  transition:background var(--ease);
}
.header-inner{display:flex;align-items:center;gap:18px;min-height:76px}
.brand{display:inline-flex;align-items:center;font-size:18px;font-weight:700;white-space:nowrap;flex:none;letter-spacing:-.01em}
.brand em{font-style:normal;color:var(--brand)}
.brand-dot{width:6px;height:6px;border-radius:50%;background:var(--accent);margin:0 8px;flex:none;box-shadow:0 0 10px rgba(255,61,127,.8)}
.search{
  display:flex;align-items:center;gap:10px;height:44px;padding:0 8px 0 16px;
  border-radius:999px;background:rgba(255,255,255,.045);border:1px solid var(--line);
  transition:border-color var(--ease),box-shadow var(--ease),background var(--ease);
}
.search:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(184,255,46,.18);background:rgba(255,255,255,.06)}
.search:focus-within .search-icon{color:var(--brand)}
.search-icon{color:var(--cyan);flex:none;transition:color var(--ease)}
.search input{flex:1;min-width:0;background:none;border:0;outline:none;font-size:14px;color:var(--text)}
.search input::placeholder{color:var(--text-3)}
.kbd{flex:none;font-size:11px;line-height:1;color:var(--text-3);border:1px solid var(--line);border-radius:6px;padding:5px 7px;background:rgba(255,255,255,.03)}
.nav-search{flex:1 1 auto;min-width:0;max-width:430px}
.nav-links{display:flex;align-items:center;gap:2px;flex:none}
.nav-link{position:relative;padding:8px 10px;font-size:14px;color:var(--text-2);border-radius:8px;transition:color var(--ease),background var(--ease)}
.nav-link::after{content:"";position:absolute;left:10px;right:10px;bottom:1px;height:2px;border-radius:2px;background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform var(--ease)}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.04)}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--brand)}
.header-actions{display:flex;align-items:center;gap:10px;flex:none;margin-left:auto}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:999px;
  font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),border-color var(--ease),color var(--ease),filter var(--ease);
}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-primary{background:var(--brand);color:var(--brand-ink);box-shadow:var(--glow)}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 0 0 1px rgba(184,255,46,.45),0 12px 34px rgba(184,255,46,.32)}
.btn-primary:active{transform:translateY(0);filter:brightness(.96)}
.btn-ghost{background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.16);color:var(--text)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-text{display:inline-flex;align-items:center;gap:6px;height:auto;padding:0;color:var(--brand);font-size:14px;font-weight:600}
.btn-text svg{transition:transform var(--ease)}
.btn-text:hover svg{transform:translateX(4px)}
.menu-toggle{display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);align-items:center;justify-content:center;color:var(--text);flex:none}
.menu-toggle:hover{border-color:var(--brand);color:var(--brand)}

/* ---------- drawer ---------- */
.drawer{
  position:fixed;inset:0;z-index:90;display:none;
  background:rgba(11,9,19,.96);
  -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
  padding:18px 20px 32px;overflow-y:auto;
}
.drawer.is-open{display:block;animation:drawerIn 200ms ease}
@keyframes drawerIn{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:translateY(0)}}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-close{width:40px;height:40px;border-radius:12px;border:1px solid var(--line);display:inline-flex;align-items:center;justify-content:center;color:var(--text-2)}
.drawer-close:hover{color:var(--brand);border-color:var(--brand)}
.drawer-list{margin:18px 0}
.drawer-list a{display:flex;align-items:center;gap:14px;padding:14px 4px;border-bottom:1px solid var(--line);font-size:16px;color:var(--text-2)}
.drawer-list a:hover{color:var(--brand)}
.drawer-idx{font-size:12px;color:var(--text-3);font-variant-numeric:tabular-nums;width:20px}
.drawer-list svg{margin-left:auto;color:var(--text-3)}
.drawer-cta{display:grid;gap:10px;margin-top:8px}
.drawer-cta .btn{width:100%}
body.no-scroll{overflow:hidden}

/* ---------- breadcrumb ---------- */
.breadcrumb{display:flex;align-items:center;gap:8px;flex-wrap:wrap;padding:26px 0 0;font-size:13px;color:var(--text-3)}
.breadcrumb a{color:var(--text-3);transition:color var(--ease)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:rgba(255,255,255,.18)}
.breadcrumb .current{max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--text-2)}
.breadcrumb svg{flex:none}

/* ---------- article hero ---------- */
.post-hero{padding:30px 0 6px}
.post-hero-inner{max-width:900px}
.post-hero h1{
  font-size:clamp(26px,3.4vw,40px);font-weight:700;line-height:1.3;letter-spacing:-.02em;
  margin:14px 0 0;max-width:880px;padding-left:18px;border-left:3px solid var(--brand);
}
.post-meta{display:flex;align-items:center;flex-wrap:wrap;gap:10px;margin-top:18px;font-size:13px;color:var(--text-3);padding-left:21px}
.post-meta .dot{color:rgba(255,255,255,.2)}
.badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;font-size:12px;font-weight:600;line-height:1;white-space:nowrap}
.badge-accent{border:1px solid rgba(255,61,127,.55);background:rgba(255,61,127,.10);color:#FF7FA8}
.badge-brand{border:1px solid rgba(184,255,46,.45);background:rgba(184,255,46,.08);color:var(--brand)}
.badge-plain{border:0;background:rgba(255,255,255,.06);color:var(--text-2);font-weight:500}

/* ---------- article body ---------- */
.post-main{padding:26px 0 0}
.post-cover{
  max-width:900px;margin:0 auto 34px;border-radius:var(--radius);overflow:hidden;
  border:1px solid var(--card-line);box-shadow:var(--shadow);background:var(--bg-2);
}
.post-cover img{width:100%;aspect-ratio:16/7;object-fit:cover}
.post-body{
  max-width:820px;margin:0 auto;font-size:16px;line-height:1.85;color:var(--text);
  text-align:left;word-break:break-word;
}
.post-body p{margin:0 0 1.2em;color:var(--text)}
.post-body h2{
  position:relative;font-size:clamp(20px,2.2vw,26px);font-weight:700;
  margin:2em 0 .75em;padding-left:20px;line-height:1.4;
}
.post-body h2::before{content:"";position:absolute;left:0;top:.42em;width:8px;height:8px;border-radius:2px;background:var(--brand)}
.post-body h3{font-size:19px;font-weight:600;margin:1.6em 0 .6em;color:var(--text)}
.post-body ul,.post-body ol{margin:0 0 1.2em;padding-left:4px}
.post-body ul li{position:relative;padding-left:20px;margin-bottom:.55em;color:var(--text-2)}
.post-body ul li::before{content:"";position:absolute;left:2px;top:.72em;width:6px;height:6px;border-radius:50%;background:var(--brand);opacity:.85}
.post-body ol{counter-reset:li}
.post-body ol li{position:relative;padding-left:28px;margin-bottom:.55em;color:var(--text-2);counter-increment:li}
.post-body ol li::before{
  content:counter(li);position:absolute;left:0;top:.16em;width:20px;height:20px;border-radius:6px;
  display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;
  color:var(--brand-ink);background:rgba(184,255,46,.85);
}
.post-body a{color:var(--brand);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.post-body a:hover{color:#D6FF7A}
.post-body strong{color:#fff;font-weight:600}
.post-body blockquote{
  margin:1.6em 0;padding:18px 22px;border-left:3px solid var(--brand);border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  -webkit-backdrop-filter:blur(14px) saturate(120%);backdrop-filter:blur(14px) saturate(120%);
  color:var(--text-2);font-size:15px;
}
.post-body blockquote p:last-child{margin-bottom:0}
.post-body img{width:100%;border-radius:var(--radius-sm);border:1px solid rgba(255,255,255,.08);margin:1.4em 0}
.post-body figure{margin:1.4em 0}
.post-body figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:10px}
.post-body table{width:100%;border-collapse:collapse;margin:1.5em 0;font-size:14px;display:block;overflow-x:auto;white-space:nowrap}
.post-body thead th{background:rgba(255,255,255,.06);color:var(--text);font-weight:600}
.post-body th,.post-body td{padding:12px 14px;border-bottom:1px solid rgba(255,255,255,.06);text-align:left}
.post-body tbody tr:hover{background:rgba(255,255,255,.03)}
.post-body hr{border:0;height:1px;background:var(--line);margin:2.2em 0}

/* ---------- post footer ---------- */
.post-foot{
  max-width:820px;margin:38px auto 0;padding-top:22px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
}
.post-tags{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.tag{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:999px;
  font-size:12.5px;color:var(--text-2);background:rgba(255,255,255,.05);border:1px solid var(--line);
  transition:color var(--ease),border-color var(--ease),background var(--ease);
}
.tag:hover{color:var(--brand);border-color:rgba(184,255,46,.4);background:rgba(184,255,46,.07)}

/* ---------- empty state ---------- */
.empty-state{
  max-width:820px;margin:0 auto;padding:56px 28px;text-align:center;
  border:1px dashed rgba(255,255,255,.14);border-radius:var(--radius);background:rgba(255,255,255,.02);
}
.empty-state svg{color:var(--text-3);margin:0 auto 16px}
.empty-state h2{font-size:20px;margin-bottom:8px}
.empty-state p{color:var(--text-2);font-size:14px;margin-bottom:22px}

/* ---------- sections ---------- */
.section{padding:72px 0 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px}
.section-head h2{font-size:clamp(22px,2.6vw,30px);font-weight:700}
.section-head p{color:var(--text-2);font-size:14px;margin-top:8px}
.section-link{font-size:14px;color:var(--text-2);display:inline-flex;align-items:center;gap:6px;transition:color var(--ease)}
.section-link:hover{color:var(--brand)}

.card{
  background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  -webkit-backdrop-filter:blur(14px) saturate(120%);backdrop-filter:blur(14px) saturate(120%);
  border:1px solid var(--card-line);border-radius:var(--radius);padding:24px;
  box-shadow:var(--shadow);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.card:hover{transform:translateY(-4px);border-color:rgba(184,255,46,.35);box-shadow:var(--shadow-lg)}

.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.related-card{display:flex;flex-direction:column;overflow:hidden;padding:0}
.related-thumb{position:relative;overflow:hidden;background:var(--bg-2);border-bottom:1px solid var(--line)}
.related-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform 260ms ease}
.related-card:hover .related-thumb img{transform:scale(1.04)}
.related-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.related-body h3{font-size:17px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.related-body .related-desc{font-size:13.5px;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.related-meta{display:flex;align-items:center;gap:8px;font-size:12.5px;color:var(--text-3);margin-top:auto}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:12px;max-width:880px}
.faq-item{
  border:1px solid var(--card-line);border-radius:var(--radius-sm);
  background:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  -webkit-backdrop-filter:blur(14px) saturate(120%);backdrop-filter:blur(14px) saturate(120%);
  overflow:hidden;transition:border-color var(--ease)
}
.faq-item.is-open{border-color:rgba(184,255,46,.35)}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%;
  padding:18px 22px;text-align:left;font-size:16px;font-weight:600;color:var(--text);
}
.faq-q:hover{color:var(--brand)}
.faq-icon{flex:none;color:var(--brand);transition:transform var(--ease)}
.faq-item.is-open .faq-icon{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 260ms ease}
.faq-item.is-open .faq-a{max-height:420px}
.faq-a p{padding:0 22px 20px;font-size:14px;line-height:1.85;color:var(--text-2)}

/* ---------- cta band ---------- */
.cta-band{padding:72px 0 0}
.cta-inner{
  position:relative;overflow:hidden;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  padding:36px 40px;border-radius:var(--radius);
  background:linear-gradient(120deg,rgba(184,255,46,.12),rgba(184,255,46,.04) 55%,rgba(255,255,255,.02));
  border:1px solid rgba(184,255,46,.24);
}
.cta-inner::before,.cta-inner::after{content:"";position:absolute;top:16px;bottom:16px;width:3px;border-radius:3px;background:var(--brand)}
.cta-inner::before{left:0}
.cta-inner::after{right:0}
.cta-inner h2{font-size:clamp(20px,2.4vw,26px);font-weight:700}
.cta-inner p{color:var(--text-2);font-size:14px;margin-top:8px;max-width:56ch}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- footer ---------- */
.site-footer{margin-top:88px;background:var(--bg-0);border-top:1px solid var(--line)}
.footer-top{display:grid;grid-template-columns:1fr 1.5fr;gap:56px;padding:64px 0 40px}
.footer-brand{font-size:20px;font-weight:700;letter-spacing:-.01em}
.footer-brand em{font-style:normal;color:var(--brand)}
.footer-desc{color:var(--text-2);font-size:14px;margin-top:12px;max-width:36ch;line-height:1.8}
.footer-search{margin-top:20px;max-width:320px}
.footer-search .search{height:42px}
.footer-cols{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.footer-col h4{font-size:14px;font-weight:600;color:var(--text);margin-bottom:14px}
.footer-col li+li{margin-top:9px}
.footer-col a{display:inline-block;font-size:14px;color:var(--text-2);transition:color var(--ease),transform var(--ease)}
.footer-col a:hover{color:var(--brand);transform:translateX(2px)}
.footer-info{display:flex;flex-wrap:wrap;gap:12px 28px;padding:22px 0;border-top:1px solid var(--line);color:var(--text-3);font-size:13px}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;padding:20px 0 34px;border-top:1px solid var(--line);color:var(--text-3);font-size:13px}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .header-inner{gap:14px}
  .nav-link{padding:8px 7px;font-size:13.5px}
  .nav-search{max-width:340px}
}
@media (max-width:1100px){
  .nav-links{display:none}
  .menu-toggle{display:inline-flex}
  .header-actions .btn-ghost{display:none}
  .nav-search{max-width:none}
}
@media (max-width:1023px){
  .container{padding:0 32px}
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .footer-top{grid-template-columns:1fr;gap:36px;padding:52px 0 34px}
  .section{padding:60px 0 0}
  .cta-inner{padding:30px 28px}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .header-inner{flex-wrap:wrap;min-height:auto;padding:12px 0;gap:10px;row-gap:12px}
  .brand{font-size:16px}
  .header-actions{margin-left:auto}
  .header-actions .btn-primary{height:38px;padding:0 16px;font-size:14px}
  .nav-search{order:3;flex:1 1 100%;max-width:none;height:44px;border-radius:12px;padding:0 12px 0 14px}
  .breadcrumb{padding-top:18px;font-size:12.5px}
  .post-hero{padding:20px 0 0}
  .post-hero h1{font-size:clamp(24px,6vw,30px);padding-left:14px}
  .post-meta{padding-left:17px;gap:8px}
  .post-cover img{aspect-ratio:16/9}
  .post-body{font-size:15px;line-height:1.85}
  .post-body h2::before{top:.38em}
  .post-foot{flex-direction:column;align-items:flex-start}
  .related-grid{grid-template-columns:1fr;gap:16px}
  .section{padding:48px 0 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px}
  .faq-q{font-size:15px;padding:16px 18px}
  .faq-a p{padding:0 18px 18px}
  .cta-inner{flex-direction:column;align-items:flex-start;padding:26px 22px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
  .footer-top{padding:44px 0 28px}
  .footer-cols{grid-template-columns:repeat(2,1fr);gap:22px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .site-footer{margin-top:64px}
}
@media (max-width:479px){
  .header-actions .btn-primary{display:none}
  .post-body{font-size:14.5px}
  .btn{width:100%}
  .btn-sm{width:auto}
  .post-foot .btn{width:100%}
  .footer-cols{grid-template-columns:1fr}
}

/* roulang page: category1 */
:root{
  --bg-0:#0B0913;
  --bg-1:#141024;
  --bg-2:#1C1732;
  --brand:#B8FF2E;
  --brand-ink:#0B0913;
  --accent:#FF3D7F;
  --cyan:#4DD9FF;
  --text:#E8E6F2;
  --text-2:#A9A5BF;
  --text-3:#6E6A85;
  --line:rgba(255,255,255,.08);
  --card-line:rgba(255,255,255,.10);
  --glass:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  --radius:16px;
  --radius-sm:12px;
  --shadow:0 8px 24px rgba(0,0,0,.45);
  --shadow-lg:0 16px 48px rgba(0,0,0,.55);
  --glow:0 0 0 1px rgba(184,255,46,.35),0 8px 28px rgba(184,255,46,.22);
  --container:1200px;
  --font:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  background-color:var(--bg-0);
  background-image:radial-gradient(rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:22px 22px;
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  top:0;left:0;right:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(184,255,46,.85),transparent);
  z-index:120;
}
img{max-width:100%;display:block;border-radius:var(--radius-sm);border:1px solid var(--line)}
a{color:inherit;text-decoration:none;transition:color .18s ease}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:none;cursor:pointer}
ul,ol{list-style:none}
h1,h2,h3,h4{line-height:1.25;letter-spacing:-.01em}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:6px}
::selection{background:rgba(184,255,46,.28);color:#fff}

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

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 24px;
  border-radius:999px;
  font-size:15px;
  font-weight:600;
  letter-spacing:.01em;
  white-space:nowrap;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,border-color .18s ease,color .18s ease;
}
.btn-primary{
  background:var(--brand);
  color:var(--brand-ink);
  box-shadow:var(--glow);
  border:1px solid transparent;
}
.btn-primary:hover{
  filter:brightness(1.08);
  transform:translateY(-2px);
  box-shadow:0 0 0 1px rgba(184,255,46,.5),0 12px 34px rgba(184,255,46,.3);
}
.btn-primary:active{transform:translateY(0);filter:brightness(.96)}
.btn-ghost{
  background:rgba(255,255,255,.03);
  border:1px solid rgba(255,255,255,.16);
  color:var(--text);
}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px)}
.btn-lg{height:52px;padding:0 30px;font-size:16px}
.btn-block{width:100%}

/* ============ 徽章 / 标签 ============ */
.pill{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:24px;
  padding:0 12px;
  border-radius:999px;
  font-size:12px;
  font-weight:600;
  letter-spacing:.02em;
}
.pill-accent{border:1px solid var(--accent);background:rgba(255,61,127,.10);color:#FF8DB3}
.pill-brand{border:1px solid rgba(184,255,46,.6);background:rgba(184,255,46,.08);color:var(--brand)}
.pill-soft{border:1px solid transparent;background:rgba(255,255,255,.06);color:var(--text-2)}
.tag{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 10px;
  border-radius:8px;
  font-size:12.5px;
  color:var(--text-2);
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  background:rgba(11,9,19,.72);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border-bottom:1px solid var(--line);
  transition:background .2s ease,box-shadow .2s ease;
}
.site-header.is-scrolled{
  background:rgba(11,9,19,.88);
  box-shadow:0 8px 24px rgba(0,0,0,.4);
}
.nav-wrap{
  display:flex;
  align-items:center;
  gap:20px;
  height:76px;
}
.brand{
  font-size:19px;
  font-weight:700;
  letter-spacing:-.01em;
  color:var(--text);
  white-space:nowrap;
  flex-shrink:0;
}
.brand em{font-style:normal;color:var(--brand)}
.brand:hover em{color:var(--cyan)}

.search{
  position:relative;
  display:flex;
  align-items:center;
  gap:10px;
  flex:1 1 auto;
  min-width:180px;
  max-width:420px;
  height:44px;
  padding:0 12px 0 16px;
  border-radius:999px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--card-line);
  transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;
}
.search:focus-within{
  border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(184,255,46,.18);
  background:rgba(255,255,255,.06);
}
.search-icon{color:var(--cyan);flex-shrink:0;transition:color .18s ease}
.search:focus-within .search-icon{color:var(--brand)}
.search input{
  flex:1;
  min-width:0;
  background:transparent;
  border:none;
  outline:none;
  font-size:14px;
  color:var(--text);
}
.search input::placeholder{color:var(--text-3)}
.search kbd{
  font-family:var(--font);
  font-size:11px;
  color:var(--text-3);
  border:1px solid var(--line);
  border-radius:6px;
  padding:2px 6px;
  white-space:nowrap;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:16px;
  margin-left:auto;
}
.nav-link{
  position:relative;
  font-size:14px;
  color:var(--text-2);
  padding:6px 0;
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:2px;
  border-radius:2px;
  background:var(--brand);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .2s ease;
}
.nav-link:hover{color:var(--text)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--brand);font-weight:600}
.nav-link.is-active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.header-actions .btn{height:40px;padding:0 18px;font-size:14px}
.mobile-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:12px;
  border:1px solid var(--card-line);
  color:var(--text);
  align-items:center;
  justify-content:center;
  background:rgba(255,255,255,.04);
}

/* 移动抽屉 */
.drawer{
  position:fixed;
  inset:0;
  z-index:110;
  background:rgba(11,9,19,.97);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  padding:20px 20px 40px;
  transform:translateY(-8px);
  opacity:0;
  visibility:hidden;
  transition:opacity .2s ease,transform .2s ease,visibility .2s;
  overflow-y:auto;
}
.drawer.is-open{opacity:1;visibility:visible;transform:translateY(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.drawer-close{
  width:40px;height:40px;border-radius:12px;
  border:1px solid var(--card-line);
  display:flex;align-items:center;justify-content:center;
  color:var(--text);
}
.drawer-list{display:grid;gap:6px;margin:22px 0}
.drawer-list a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:14px 16px;
  border-radius:12px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
  color:var(--text-2);
  font-size:15px;
}
.drawer-list a.is-active{color:var(--brand);border-color:rgba(184,255,46,.4)}
.drawer-list a span.idx{font-size:12px;color:var(--text-3);font-variant-numeric:tabular-nums}
.drawer-cta{display:grid;gap:10px;margin-top:18px}

/* ============ 面包屑 ============ */
.breadcrumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-3);
  flex-wrap:wrap;
}
.breadcrumb a{color:var(--text-3)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:var(--text-3);opacity:.6}
.breadcrumb .current{color:var(--text-2)}

/* ============ 首屏横幅 ============ */
.page-hero{
  position:relative;
  padding:36px 0 64px;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.page-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(90deg,#0B0913 0%,rgba(11,9,19,.94) 42%,rgba(11,9,19,.35) 78%,transparent 100%),
    url("/assets/images/backpic/back-1.webp");
  background-size:cover;
  background-position:center right;
  z-index:-1;
  opacity:.85;
}
.hero-inner{
  margin-top:28px;
  max-width:720px;
}
.hero-inner h1{
  margin:16px 0 16px;
  font-size:clamp(28px,4.2vw,46px);
  font-weight:700;
  line-height:1.18;
  letter-spacing:-.02em;
}
.hero-sub{
  font-size:17px;
  color:var(--text-2);
  max-width:620px;
  line-height:1.85;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:28px;
}
.hero-metrics{
  display:flex;
  flex-wrap:wrap;
  gap:36px;
  margin-top:40px;
  padding-top:24px;
  border-top:1px solid var(--line);
  max-width:620px;
}
.metric-num{
  font-size:28px;
  font-weight:700;
  color:var(--brand);
  font-variant-numeric:tabular-nums;
  line-height:1.2;
}
.metric-label{
  font-size:13px;
  color:var(--text-3);
  margin-top:2px;
}

/* ============ 板块通用 ============ */
.section{padding:80px 0}
.section-head{margin-bottom:36px;max-width:720px}
.section-head h2{
  font-size:clamp(22px,2.6vw,32px);
  font-weight:700;
}
.section-head p{
  margin-top:10px;
  color:var(--text-2);
  font-size:15px;
}

/* ============ 步骤流布局 ============ */
.steps-layout{
  display:grid;
  grid-template-columns:264px 1fr;
  gap:56px;
  align-items:start;
}
.toc{
  position:sticky;
  top:104px;
  padding:22px;
  border-radius:var(--radius);
  background:var(--glass);
  border:1px solid var(--card-line);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow);
}
.toc-title{
  font-size:13px;
  color:var(--text-3);
  letter-spacing:.08em;
  margin-bottom:12px;
}
.toc-link{
  display:block;
  position:relative;
  padding:9px 10px 9px 14px;
  font-size:14px;
  color:var(--text-2);
  border-radius:8px;
  transition:color .18s ease,background .18s ease;
}
.toc-link::before{
  content:"";
  position:absolute;
  left:0;top:50%;
  transform:translateY(-50%);
  width:3px;height:0;
  border-radius:2px;
  background:var(--brand);
  transition:height .2s ease;
}
.toc-link:hover{color:var(--text);background:rgba(255,255,255,.04)}
.toc-link.is-active{color:var(--brand);background:rgba(184,255,46,.07)}
.toc-link.is-active::before{height:18px}
.toc-note{
  margin-top:18px;
  padding-top:16px;
  border-top:1px solid var(--line);
  font-size:12.5px;
  color:var(--text-3);
  line-height:1.75;
}

.steps-list{
  position:relative;
  display:grid;
  gap:30px;
}
.steps-list::before{
  content:"";
  position:absolute;
  left:23px;
  top:26px;
  bottom:26px;
  width:2px;
  background:linear-gradient(180deg,rgba(184,255,46,.55),rgba(184,255,46,.08));
  border-radius:2px;
}
.step{
  position:relative;
  display:grid;
  grid-template-columns:48px 1fr;
  gap:22px;
}
.step-num{
  width:48px;height:48px;
  border-radius:50%;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:16px;
  font-weight:700;
  color:var(--brand);
  background:var(--bg-1);
  border:2px solid rgba(184,255,46,.45);
  font-variant-numeric:tabular-nums;
  z-index:1;
}
.step-body{
  padding:22px 24px;
  border-radius:var(--radius);
  background:var(--glass);
  border:1px solid var(--card-line);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow);
  transition:transform .18s ease,border-color .18s ease;
}
.step:hover .step-body{transform:translateY(-4px);border-color:rgba(184,255,46,.35)}
.step-body h3{font-size:19px;font-weight:600;margin-bottom:10px}
.step-body p{font-size:15px;color:var(--text-2);line-height:1.85}
.step-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.step-figure{margin-top:18px}
.step-figure img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
  background:var(--bg-2);
  border-color:var(--line);
}
.step-figure figcaption{
  margin-top:8px;
  font-size:12.5px;
  color:var(--text-3);
  text-align:center;
}

/* ============ 人群卡 ============ */
.grid-2{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:20px;
}
.info-card{
  padding:26px;
  border-radius:var(--radius);
  background:var(--glass);
  border:1px solid var(--card-line);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow);
  transition:transform .18s ease,border-color .18s ease;
}
.info-card:hover{transform:translateY(-4px);border-color:rgba(184,255,46,.35)}
.info-card h3{
  font-size:18px;
  font-weight:600;
  margin-bottom:10px;
  display:flex;
  align-items:center;
  gap:10px;
}
.dot{
  width:8px;height:8px;
  border-radius:50%;
  background:var(--brand);
  flex-shrink:0;
  box-shadow:0 0 0 4px rgba(184,255,46,.12);
}
.info-card p{font-size:14.5px;color:var(--text-2);line-height:1.8}

/* ============ 提示卡 ============ */
.note-card{
  margin-top:32px;
  display:grid;
  grid-template-columns:56px 1fr;
  gap:20px;
  padding:26px 28px;
  border-radius:var(--radius);
  background:linear-gradient(160deg,rgba(255,61,127,.10),rgba(255,61,127,.02));
  border:1px solid rgba(255,61,127,.28);
  box-shadow:var(--shadow);
}
.note-icon{
  width:56px;height:56px;
  border-radius:14px;
  display:flex;align-items:center;justify-content:center;
  color:var(--accent);
  background:rgba(255,61,127,.10);
  border:1px solid rgba(255,61,127,.35);
}
.note-card h3{font-size:17px;font-weight:600;margin-bottom:8px}
.note-card p{font-size:14.5px;color:var(--text-2);line-height:1.85}
.note-card ul{margin-top:12px;display:grid;gap:8px}
.note-card li{
  position:relative;
  padding-left:18px;
  font-size:14.5px;
  color:var(--text-2);
  line-height:1.8;
}
.note-card li::before{
  content:"";
  position:absolute;
  left:0;top:11px;
  width:6px;height:6px;
  border-radius:2px;
  background:var(--accent);
}

/* ============ FAQ ============ */
.faq{display:grid;gap:12px;max-width:900px}
.faq-item{
  border-radius:var(--radius-sm);
  background:rgba(255,255,255,.035);
  border:1px solid var(--line);
  overflow:hidden;
  transition:border-color .18s ease,background .18s ease;
}
.faq-item[open]{
  border-color:rgba(184,255,46,.35);
  background:rgba(255,255,255,.05);
}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:18px 22px;
  font-size:16px;
  font-weight:600;
  color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--brand)}
.faq-mark{
  flex-shrink:0;
  width:26px;height:26px;
  border-radius:50%;
  border:1px solid var(--card-line);
  display:flex;align-items:center;justify-content:center;
  color:var(--brand);
  transition:transform .18s ease;
}
.faq-item[open] .faq-mark{transform:rotate(180deg)}
.faq-answer{
  padding:0 22px 20px;
  font-size:14.5px;
  color:var(--text-2);
  line-height:1.85;
}

/* ============ CTA 条 ============ */
.cta-bar{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  padding:36px 40px;
  border-radius:var(--radius);
  background:linear-gradient(120deg,rgba(184,255,46,.10),rgba(184,255,46,.03));
  border:1px solid rgba(184,255,46,.28);
  position:relative;
  overflow:hidden;
}
.cta-bar::before,.cta-bar::after{
  content:"";
  position:absolute;
  top:16px;bottom:16px;
  width:3px;
  border-radius:3px;
  background:var(--brand);
  opacity:.85;
}
.cta-bar::before{left:0}
.cta-bar::after{right:0}
.cta-bar h2{font-size:clamp(20px,2.2vw,26px);font-weight:700}
.cta-bar p{margin-top:8px;font-size:14.5px;color:var(--text-2)}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:24px;
  background:var(--bg-0);
  border-top:1px solid var(--line);
  padding:64px 0 28px;
}
.footer-top{
  display:grid;
  grid-template-columns:1.1fr 1.4fr;
  gap:56px;
  align-items:start;
}
.footer-brand{
  font-size:22px;
  font-weight:700;
  letter-spacing:-.01em;
}
.footer-brand em{font-style:normal;color:var(--brand)}
.footer-desc{
  margin-top:12px;
  font-size:14px;
  color:var(--text-2);
  line-height:1.85;
  max-width:400px;
}
.footer-search{margin-top:18px;max-width:360px}
.footer-search .search{max-width:100%;height:42px}
.footer-cols{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:28px;
}
.footer-col h4{
  font-size:14px;
  font-weight:600;
  color:var(--text);
  margin-bottom:14px;
  letter-spacing:.02em;
}
.footer-col ul{display:grid;gap:10px}
.footer-col a{
  font-size:14px;
  color:var(--text-2);
  display:inline-block;
  transition:color .18s ease,transform .18s ease;
}
.footer-col a:hover{color:var(--brand);transform:translateX(2px)}
.footer-info{
  display:flex;
  flex-wrap:wrap;
  gap:14px 34px;
  margin-top:44px;
  padding-top:22px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--text-3);
}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:12px;
  margin-top:18px;
  padding-top:18px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--text-3);
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .container{padding:0 32px}
  .nav-links{gap:12px}
  .nav-link{font-size:13.5px}
  .search{max-width:340px}
}
@media (max-width:1150px){
  .nav-links{display:none}
  .mobile-toggle{display:flex}
  .search{max-width:100%}
  .header-actions{margin-left:auto}
}
@media (max-width:1023px){
  .section{padding:64px 0}
  .steps-layout{grid-template-columns:1fr;gap:32px}
  .toc{
    position:static;
    display:flex;
    gap:8px;
    overflow-x:auto;
    padding:14px;
    scrollbar-width:thin;
  }
  .toc-title{display:none}
  .toc-link{
    white-space:nowrap;
    padding:8px 14px;
    border:1px solid var(--line);
    border-radius:999px;
    background:rgba(255,255,255,.03);
  }
  .toc-link::before{display:none}
  .toc-note{display:none}
  .grid-2{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr;gap:36px}
}
@media (max-width:860px){
  .page-hero::after{
    background-image:
      linear-gradient(180deg,rgba(11,9,19,.92) 0%,rgba(11,9,19,.86) 55%,rgba(11,9,19,.98) 100%),
      url("/assets/images/backpic/back-1.webp");
    background-position:center;
  }
  .header-actions{display:none}
  .cta-bar{
    flex-direction:column;
    align-items:flex-start;
    padding:28px 26px;
  }
}
@media (max-width:767px){
  body{font-size:15px;line-height:1.85}
  .container{padding:0 20px}
  .nav-wrap{
    height:auto;
    padding:12px 0;
    flex-wrap:wrap;
    gap:12px;
  }
  .brand{font-size:17px;order:1}
  .mobile-toggle{order:2;margin-left:auto;display:flex}
  .search{order:3;flex:1 1 100%;max-width:100%;height:44px;border-radius:12px}
  .search kbd{display:none}
  .page-hero{padding:24px 0 48px}
  .hero-sub{font-size:15.5px}
  .hero-actions .btn{width:100%}
  .hero-metrics{gap:24px 32px;margin-top:30px}
  .metric-num{font-size:24px}
  .section{padding:56px 0}
  .section-head{margin-bottom:26px}
  .steps-list{gap:22px}
  .steps-list::before{left:17px;top:20px;bottom:20px}
  .step{grid-template-columns:36px 1fr;gap:14px}
  .step-num{width:36px;height:36px;font-size:14px;border-width:2px}
  .step-body{padding:18px}
  .step-body h3{font-size:17px}
  .step-body p{font-size:14.5px}
  .note-card{grid-template-columns:1fr;padding:22px}
  .note-icon{width:46px;height:46px}
  .faq-item summary{padding:16px 18px;font-size:15px}
  .faq-answer{padding:0 18px 18px}
  .footer-cols{grid-template-columns:1fr 1fr}
  .footer-bottom{flex-direction:column}
  .cta-bar .btn{width:100%}
}
@media (max-width:520px){
  .footer-cols{grid-template-columns:1fr}
  .hero-inner h1{font-size:26px}
  .info-card{padding:20px}
  .toc{padding:12px}
}

/* roulang page: category2 */
:root{
  --bg-0:#0B0913;
  --bg-1:#141024;
  --bg-2:#1C1732;
  --brand:#B8FF2E;
  --brand-ink:#0B0913;
  --accent:#FF3D7F;
  --cyan:#4DD9FF;
  --text:#E8E6F2;
  --text-2:#A9A5BF;
  --text-3:#6E6A85;
  --line:rgba(255,255,255,.08);
  --card-line:rgba(255,255,255,.10);
  --glass:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  --r-card:16px;
  --r-sm:12px;
  --shadow:0 8px 24px rgba(0,0,0,.45);
  --shadow-lg:0 16px 48px rgba(0,0,0,.55);
  --glow:0 0 0 1px rgba(184,255,46,.35),0 8px 28px rgba(184,255,46,.22);
  --font:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg-0);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:radial-gradient(rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:22px 22px;
}
body::after{
  content:"";
  position:fixed;
  left:0;right:0;top:0;
  height:1px;
  z-index:70;
  background:linear-gradient(90deg,transparent,rgba(184,255,46,.7),transparent);
  pointer-events:none;
}
body.lock{overflow:hidden}
img{max-width:100%;display:block;border-radius:var(--r-sm)}
a{color:inherit;text-decoration:none;transition:color .18s ease,transform .18s ease}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;line-height:1.25;letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
dl,dd,dt{margin:0}
::selection{background:rgba(184,255,46,.28);color:#fff}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:6px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;position:relative;z-index:1}
.section{padding:88px 0}
.section-alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{margin-bottom:36px;max-width:760px}
.section-head h2{font-size:clamp(22px,2.6vw,34px);font-weight:700}
.section-head p{margin-top:12px;color:var(--text-2);font-size:15px;line-height:1.85}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--brand);letter-spacing:.08em;text-transform:uppercase;margin-bottom:14px}
.eyebrow::before{content:"";width:18px;height:1px;background:var(--brand);display:block}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(11,9,19,.72);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border-bottom:1px solid transparent;
  transition:background .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.site-header.scrolled{background:rgba(11,9,19,.9);border-bottom-color:var(--line);box-shadow:0 10px 30px rgba(0,0,0,.35)}
.header-main{display:flex;align-items:center;gap:22px;height:74px}
.brand{font-size:19px;font-weight:700;letter-spacing:-.01em;white-space:nowrap;display:flex;align-items:center;gap:8px}
.brand em{font-style:normal;color:var(--brand)}
.brand .brand-dot{width:6px;height:6px;border-radius:50%;background:var(--brand);box-shadow:0 0 10px rgba(184,255,46,.6);flex:none}
.search{position:relative;display:flex;align-items:center;flex:1 1 320px;max-width:440px}
.search input{
  width:100%;height:44px;border-radius:999px;
  background:var(--bg-1);
  border:1px solid var(--line);
  color:var(--text);
  font-size:14px;
  padding:0 74px 0 44px;
  outline:none;
  transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;
  font-family:inherit;
}
.search input::placeholder{color:var(--text-3)}
.search input:focus{
  border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(184,255,46,.18);
  background:var(--bg-2);
}
.search-icon{position:absolute;left:16px;color:var(--cyan);pointer-events:none;transition:color .18s ease}
.search input:focus + .search-icon,
.search:focus-within .search-icon{color:var(--brand)}
.search kbd{
  position:absolute;right:12px;top:50%;transform:translateY(-50%);
  font-size:11px;padding:2px 7px;border-radius:6px;
  border:1px solid var(--line);background:var(--bg-2);
  color:var(--text-3);font-family:inherit;
}
.nav-links{display:flex;align-items:center;gap:18px;margin-left:auto}
.nav-link{
  position:relative;font-size:14px;color:var(--text-2);padding:6px 0;white-space:nowrap;
  transition:color .18s ease;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--brand);border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform .2s ease;
}
.nav-link:hover{color:var(--text)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--brand);font-weight:600}
.nav-link.is-active::after{transform:scaleX(1)}
.hd-actions{display:flex;align-items:center;gap:10px;flex:none}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:12px;
  background:rgba(255,255,255,.05);border:1px solid var(--card-line);
  color:var(--text);cursor:pointer;flex:none;
}
.nav-toggle:hover{border-color:var(--brand);color:var(--brand)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 24px;border-radius:999px;
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease,filter .18s ease,box-shadow .18s ease,border-color .18s ease,color .18s ease,background .18s ease;
  white-space:nowrap;font-family:inherit;
}
.btn-primary{background:var(--brand);color:var(--brand-ink);box-shadow:var(--glow)}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 0 0 1px rgba(184,255,46,.5),0 12px 34px rgba(184,255,46,.3)}
.btn-primary:active{transform:translateY(0);filter:brightness(.96)}
.btn-ghost{background:rgba(255,255,255,.04);border-color:rgba(255,255,255,.16);color:var(--text)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{height:38px;padding:0 18px;font-size:14px}
.btn-lg{height:52px;padding:0 30px;font-size:16px}
.btn-block{width:100%}
.btn-link{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-size:14px;font-weight:600}
.btn-link svg{transition:transform .18s ease}
.btn-link:hover svg{transform:translateX(4px)}

/* ---------- badges ---------- */
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:999px;font-size:12px;line-height:1;white-space:nowrap;
  border:1px solid rgba(255,61,127,.5);background:rgba(255,61,127,.10);color:#FF7BA8;
}
.badge-brand{border-color:rgba(184,255,46,.5);background:rgba(184,255,46,.10);color:var(--brand)}
.badge-plain{border-color:transparent;background:rgba(255,255,255,.06);color:var(--text-2)}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;padding:0 0 72px;border-bottom:1px solid var(--line)}
.hero-bg{
  position:absolute;inset:0;
  background-size:cover;background-position:center right;
  opacity:.55;
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,#0B0913 0%,#0B0913 40%,rgba(11,9,19,.55) 72%,rgba(11,9,19,.15) 100%);
}
.hero-inner{position:relative;z-index:2;padding-top:44px;max-width:1200px}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:44px;flex-wrap:wrap}
.crumb a:hover{color:var(--brand)}
.crumb .sep{color:var(--text-3);opacity:.6}
.crumb .now{color:var(--text-2)}
.hero h1{
  font-size:clamp(28px,4.2vw,52px);
  font-weight:700;line-height:1.15;letter-spacing:-.02em;
  max-width:15em;margin:18px 0 0;
}
.hero-sub{margin-top:18px;max-width:620px;color:var(--text-2);font-size:16px;line-height:1.85}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:34px}
.hero-points li{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;color:var(--text-2);
  background:rgba(255,255,255,.04);
  border:1px solid var(--card-line);
  border-radius:999px;padding:7px 14px;
}
.hero-points li svg{color:var(--brand);flex:none}

/* ---------- stats strip ---------- */
.stats{position:relative;z-index:2;margin-top:0}
.stats-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  background:var(--line);
  border:1px solid var(--card-line);
  border-radius:var(--r-card);
  overflow:hidden;
  margin-top:-1px;
}
.stat{background:var(--bg-1);padding:26px 24px}
.stat .num{font-size:28px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums;line-height:1.2}
.stat .num small{font-size:14px;color:var(--text-2);font-weight:500;margin-left:4px}
.stat .lbl{font-size:13px;color:var(--text-3);margin-top:6px}

/* ---------- coupons ---------- */
.coupon-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.coupon{
  position:relative;display:grid;grid-template-columns:150px 1fr;
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border:1px solid var(--card-line);
  border-radius:var(--r-card);
  overflow:hidden;
  transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.coupon:hover{transform:translateY(-4px);border-color:rgba(184,255,46,.35);box-shadow:var(--shadow)}
.coupon-face{
  position:relative;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;
  padding:26px 14px;
  border-right:1px dashed rgba(255,255,255,.16);
  background:linear-gradient(180deg,rgba(184,255,46,.10),rgba(184,255,46,.02));
}
.coupon-face::before,.coupon-face::after{
  content:"";position:absolute;right:-10px;width:20px;height:20px;border-radius:50%;
  background:var(--bg-0);border:1px solid var(--card-line);
}
.coupon-face::before{top:-10px}
.coupon-face::after{bottom:-10px}
.coupon-no{font-size:36px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums;line-height:1;letter-spacing:-.02em}
.coupon-amount{font-size:12px;color:var(--text-2);letter-spacing:.04em}
.coupon-body{padding:22px 24px;display:flex;flex-direction:column;gap:12px}
.coupon-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.coupon-head h3{font-size:18px;font-weight:600}
.coupon-body > p{font-size:14px;color:var(--text-2);line-height:1.8}
.coupon-meta{display:flex;flex-direction:column;gap:6px;font-size:13px}
.coupon-meta > div{display:flex;gap:10px}
.coupon-meta dt{color:var(--text-3);flex:none;min-width:60px}
.coupon-meta dd{color:var(--text-2)}
.coupon-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:6px}
.coupon-tip{font-size:12px;color:var(--text-3)}

/* ---------- time bar ---------- */
.timebar{
  position:relative;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px;
  background:linear-gradient(90deg,rgba(184,255,46,.10),rgba(184,255,46,.04));
  border-radius:var(--r-card);
  padding:28px 32px;
  border:1px solid rgba(184,255,46,.16);
}
.timebar::before,.timebar::after{
  content:"";position:absolute;top:16px;bottom:16px;width:3px;border-radius:3px;background:var(--brand);
}
.timebar::before{left:0}
.timebar::after{right:0}
.timebar h2{font-size:clamp(18px,2.2vw,24px)}
.timebar p{font-size:14px;color:var(--text-2);margin-top:6px;max-width:620px}
.timebar-side{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.time-clock{
  font-variant-numeric:tabular-nums;
  font-size:26px;font-weight:700;color:var(--brand);
  border:1px solid rgba(184,255,46,.3);
  border-radius:12px;padding:6px 16px;
  background:rgba(11,9,19,.5);
}

/* ---------- flow ---------- */
.flow-wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:center}
.flow{display:flex;flex-direction:column;gap:0}
.flow-item{display:flex;gap:18px;position:relative;padding-bottom:28px}
.flow-item:last-child{padding-bottom:0}
.flow-item::before{
  content:"";position:absolute;left:19px;top:44px;bottom:2px;width:2px;
  background:linear-gradient(180deg,rgba(184,255,46,.5),rgba(184,255,46,.06));
}
.flow-item:last-child::before{display:none}
.flow-no{
  flex:none;width:38px;height:38px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  border:1px solid rgba(184,255,46,.5);color:var(--brand);
  font-size:14px;font-weight:700;background:rgba(184,255,46,.06);
  font-variant-numeric:tabular-nums;
}
.flow-item h3{font-size:17px;font-weight:600;margin-bottom:6px}
.flow-item p{font-size:14px;color:var(--text-2);line-height:1.8}
.flow-media{
  position:relative;border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--card-line);box-shadow:var(--shadow-lg);
  background:var(--bg-2);
}
.flow-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3}
.flow-media figcaption{
  position:absolute;left:0;right:0;bottom:0;
  padding:16px 20px;font-size:13px;color:var(--text-2);
  background:linear-gradient(180deg,transparent,rgba(11,9,19,.92));
}

/* ---------- rules ---------- */
.rules-layout{display:grid;grid-template-columns:1.25fr .75fr;gap:44px;align-items:start}
.rules{display:flex;flex-direction:column;gap:16px}
.rules li{
  display:flex;gap:16px;
  padding:20px 22px;
  border:1px solid var(--card-line);
  border-radius:var(--r-sm);
  background:rgba(255,255,255,.02);
  transition:border-color .18s ease,background .18s ease;
}
.rules li:hover{border-color:rgba(184,255,46,.3);background:rgba(255,255,255,.04)}
.rule-no{
  flex:none;width:26px;height:26px;border-radius:7px;
  display:flex;align-items:center;justify-content:center;
  background:var(--brand);color:var(--brand-ink);
  font-size:13px;font-weight:700;font-variant-numeric:tabular-nums;
  margin-top:2px;
}
.rules h3{font-size:16px;font-weight:600;margin-bottom:4px}
.rules p{font-size:14px;color:var(--text-2);line-height:1.8}
.aside-card{
  position:sticky;top:96px;
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border:1px solid var(--card-line);
  border-radius:var(--r-card);
  padding:28px 26px;
  box-shadow:var(--shadow);
}
.aside-card h3{font-size:18px;margin-bottom:12px}
.aside-card p{font-size:14px;color:var(--text-2);line-height:1.85}
.aside-list{margin-top:18px;display:flex;flex-direction:column;gap:12px}
.aside-list li{display:flex;gap:10px;font-size:13.5px;color:var(--text-2)}
.aside-list li svg{flex:none;color:var(--brand);margin-top:5px}
.aside-card .btn{margin-top:22px}
.aside-note{font-size:12px;color:var(--text-3);margin-top:12px}

/* ---------- audience ---------- */
.aud-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.aud-card{
  display:flex;gap:18px;
  padding:26px 26px;
  border:1px solid var(--card-line);
  border-radius:var(--r-card);
  background:rgba(255,255,255,.02);
  transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.aud-card:hover{transform:translateY(-4px);border-color:rgba(184,255,46,.35);box-shadow:var(--shadow)}
.aud-icon{
  flex:none;width:46px;height:46px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  border:1px solid rgba(77,217,255,.3);color:var(--cyan);
  background:rgba(77,217,255,.06);
}
.aud-card h3{font-size:17px;font-weight:600;margin-bottom:6px}
.aud-card p{font-size:14px;color:var(--text-2);line-height:1.8}

/* ---------- faq ---------- */
.faq{display:flex;flex-direction:column;gap:12px;max-width:900px}
.faq-item{
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border:1px solid var(--card-line);
  border-radius:var(--r-sm);
  overflow:hidden;
  transition:border-color .18s ease;
}
.faq-item:hover{border-color:rgba(184,255,46,.28)}
.faq-item.is-open{border-color:rgba(184,255,46,.4)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;background:none;border:0;cursor:pointer;
  color:var(--text);font-size:16px;font-weight:600;text-align:left;line-height:1.6;
  font-family:inherit;
}
.faq-icon{
  flex:none;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--card-line);
  display:flex;align-items:center;justify-content:center;
  transition:transform .18s ease,border-color .18s ease,color .18s ease;
  color:var(--text-2);
}
.faq-item.is-open .faq-icon{transform:rotate(180deg);border-color:rgba(184,255,46,.5);color:var(--brand)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .25s ease}
.faq-item.is-open .faq-a{max-height:520px}
.faq-a p{padding:0 24px 22px;font-size:14px;color:var(--text-2);line-height:1.85}

/* ---------- cta ---------- */
.cta-band{
  position:relative;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;
  padding:40px 44px;
  border-radius:var(--r-card);
  border:1px solid rgba(184,255,46,.2);
  background:
    radial-gradient(600px 220px at 12% 0%,rgba(184,255,46,.14),transparent 70%),
    linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  box-shadow:var(--shadow);
}
.cta-band h2{font-size:clamp(20px,2.3vw,28px);max-width:20em}
.cta-band p{font-size:14px;color:var(--text-2);margin-top:8px;max-width:34em}

/* ---------- drawer ---------- */
.drawer{
  position:fixed;inset:0;z-index:80;
  background:rgba(11,9,19,.94);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  padding:24px;
  display:flex;flex-direction:column;gap:20px;
  opacity:0;visibility:hidden;transform:translateY(16px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s ease;
  overflow-y:auto;
}
.drawer.is-open{opacity:1;visibility:visible;transform:translateY(0)}
.drawer-top{display:flex;align-items:center;justify-content:space-between;gap:16px}
.drawer nav{display:flex;flex-direction:column;gap:2px;margin-top:6px}
.drawer nav a{
  display:flex;align-items:center;justify-content:space-between;
  padding:16px 4px;font-size:16px;color:var(--text-2);
  border-bottom:1px solid var(--line);
}
.drawer nav a span{font-size:13px;color:var(--text-3)}
.drawer nav a.is-active{color:var(--brand)}
.drawer-actions{display:flex;flex-direction:column;gap:12px;margin-top:10px}
.drawer .search{max-width:none;flex:none}
.drawer .search input{height:46px;border-radius:12px}

/* ---------- footer ---------- */
.site-footer{
  background:var(--bg-0);
  border-top:1px solid var(--line);
  padding:56px 0 32px;
  position:relative;z-index:1;
}
.footer-top{display:grid;grid-template-columns:1.1fr 1.6fr;gap:56px}
.footer-brand{font-size:20px;font-weight:700;display:flex;align-items:center;gap:8px}
.footer-brand em{font-style:normal;color:var(--brand)}
.footer-desc{font-size:14px;color:var(--text-2);line-height:1.9;margin-top:14px;max-width:34em}
.footer-search{margin-top:20px;max-width:320px}
.footer-search .search{max-width:none}
.footer-cols{display:grid;grid-template-columns:repeat(3,1fr);gap:32px}
.footer-col h4{font-size:14px;font-weight:600;color:var(--text);margin-bottom:14px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;color:var(--text-2);display:inline-block}
.footer-col a:hover{color:var(--brand);transform:translateX(2px)}
.footer-info{
  display:flex;flex-wrap:wrap;gap:14px 28px;
  margin-top:44px;padding-top:24px;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}
.footer-info span{position:relative;padding-left:14px}
.footer-info span::before{content:"";position:absolute;left:0;top:50%;width:5px;height:5px;border-radius:50%;background:var(--brand);transform:translateY(-50%);opacity:.7}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  margin-top:22px;padding-top:22px;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}

/* ---------- responsive ---------- */
@media (max-width:1180px){
  .header-main{gap:16px}
  .search{max-width:300px}
  .nav-links{gap:14px}
  .nav-link{font-size:13.5px}
}
@media (max-width:1023px){
  .section{padding:72px 0}
  .nav-links,.hd-actions .btn-ghost{display:none}
  .nav-toggle{display:flex}
  .search{max-width:260px}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .flow-wrap{grid-template-columns:1fr;gap:36px}
  .flow-media{order:-1}
  .rules-layout{grid-template-columns:1fr;gap:28px}
  .aside-card{position:static}
  .footer-top{grid-template-columns:1fr;gap:36px}
  .coupon{grid-template-columns:130px 1fr}
}
@media (max-width:767px){
  body{font-size:15px;line-height:1.85}
  .container{padding:0 20px}
  .section{padding:56px 0}
  .header-main{flex-wrap:wrap;height:auto;padding:12px 0 14px;gap:12px}
  .brand{font-size:17px;flex:1 1 auto}
  .header-main .search{order:3;flex:1 1 100%;max-width:none;margin-bottom:2px}
  .header-main .search input{height:44px;border-radius:12px}
  .hero{padding-bottom:48px}
  .hero-inner{padding-top:24px}
  .crumb{margin-bottom:28px;font-size:12.5px}
  .hero h1{font-size:28px;max-width:none}
  .hero-sub{font-size:15px}
  .hero-actions .btn{flex:1 1 100%}
  .coupon-grid{grid-template-columns:1fr}
  .coupon{grid-template-columns:112px 1fr}
  .coupon-no{font-size:30px}
  .coupon-body{padding:20px 18px}
  .aud-grid{grid-template-columns:1fr}
  .timebar{padding:24px 22px}
  .timebar-side .btn{width:100%}
  .cta-band{padding:30px 24px;flex-direction:column;align-items:flex-start}
  .cta-band .btn{width:100%}
  .footer-cols{grid-template-columns:1fr 1fr;gap:24px}
  .footer-bottom{flex-direction:column;gap:8px}
  .faq-q{font-size:15px;padding:18px 18px}
  .faq-a p{padding:0 18px 18px}
  .stats-grid{grid-template-columns:1fr 1fr}
  .stat{padding:20px 18px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .coupon{grid-template-columns:1fr}
  .coupon-face{
    flex-direction:row;justify-content:flex-start;gap:12px;
    border-right:0;border-bottom:1px dashed rgba(255,255,255,.16);
    padding:18px 20px;
  }
  .coupon-face::before{top:auto;bottom:-10px;right:auto;left:-10px}
  .coupon-face::after{top:auto;bottom:-10px;right:-10px;left:auto}
  .coupon-no{font-size:26px}
  .coupon-foot{flex-direction:column;align-items:stretch;gap:10px}
  .coupon-foot .btn{width:100%}
  .coupon-tip{text-align:center}
  .btn{height:42px;font-size:14px}
  .btn-lg{height:48px;font-size:15px}
  .stats-grid{grid-template-columns:1fr}
  .footer-cols{grid-template-columns:1fr}
  .hero-points li{font-size:12.5px}
  .time-clock{font-size:22px;padding:5px 12px}
}

/* roulang page: category3 */
:root{
  --bg-0:#0B0913;
  --bg-1:#141024;
  --bg-2:#1C1732;
  --brand:#B8FF2E;
  --brand-ink:#0B0913;
  --accent:#FF3D7F;
  --cyan:#4DD9FF;
  --text:#E8E6F2;
  --text-2:#A9A5BF;
  --text-3:#6E6A85;
  --line:rgba(255,255,255,.08);
  --card-line:rgba(255,255,255,.10);
  --glass:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  --r-card:16px;
  --r-sm:12px;
  --r-pill:999px;
  --shadow:0 8px 24px rgba(0,0,0,.45);
  --shadow-lg:0 16px 48px rgba(0,0,0,.55);
  --container:1200px;
  --ease:180ms ease;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Hiragino Sans GB",Inter,system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background-color:var(--bg-0);
  background-image:radial-gradient(rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:22px 22px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::after{
  content:"";position:fixed;top:0;left:0;right:0;height:1px;z-index:80;pointer-events:none;
  background:linear-gradient(90deg,transparent,rgba(184,255,46,.75),transparent);
}
body.is-locked{overflow:hidden}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25;letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
a{color:inherit;text-decoration:none;transition:color var(--ease)}
img{max-width:100%;display:block;border-radius:var(--r-sm)}
button{font-family:inherit}
input,select,textarea{font-family:inherit;font-size:15px}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 24px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;
  cursor:pointer;white-space:nowrap;transition:all var(--ease);
}
.btn-primary{
  background:var(--brand);color:var(--brand-ink);
  box-shadow:0 0 0 1px rgba(184,255,46,.35),0 8px 28px rgba(184,255,46,.22);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 0 0 1px rgba(184,255,46,.45),0 12px 34px rgba(184,255,46,.30)}
.btn-primary:active{transform:translateY(0);filter:brightness(.98)}
.btn-ghost{background:rgba(255,255,255,.04);border-color:rgba(255,255,255,.16);color:var(--text)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-lg{height:52px;padding:0 28px;font-size:16px}
.btn-sm{height:38px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.btn-text{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-weight:600;font-size:14px}
.btn-text svg{transition:transform var(--ease)}
.btn-text:hover svg{transform:translateX(4px)}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(11,9,19,.72);
  backdrop-filter:blur(14px) saturate(120%);
  border-bottom:1px solid transparent;
  transition:background var(--ease),border-color var(--ease);
}
.site-header.is-scrolled{background:rgba(11,9,19,.90);border-bottom-color:var(--line)}
.header-inner{display:flex;align-items:center;gap:20px;height:74px}
.brand{
  display:inline-flex;align-items:baseline;gap:6px;
  font-size:19px;font-weight:700;letter-spacing:-.01em;color:var(--text);flex-shrink:0;
}
.brand em{font-style:normal;color:var(--brand)}
.brand-dot{color:var(--text-3);font-weight:400}
.brand-sub{font-size:13px;font-weight:500;color:var(--text-3);letter-spacing:.02em}

.search{
  display:flex;align-items:center;gap:10px;
  height:44px;padding:0 12px 0 14px;
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.12);
  border-radius:var(--r-pill);
  transition:border-color var(--ease),box-shadow var(--ease),background var(--ease);
}
.search:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(184,255,46,.18);background:rgba(255,255,255,.06)}
.search-icon{color:var(--cyan);flex-shrink:0;transition:color var(--ease)}
.search:focus-within .search-icon{color:var(--brand)}
.search input{
  flex:1;min-width:0;height:100%;border:0;background:transparent;color:var(--text);
  padding:0;outline:none;font-size:14px;
}
.search input::placeholder{color:var(--text-3)}
.search kbd{
  flex-shrink:0;font-family:inherit;font-size:11px;line-height:1;
  padding:5px 7px;border-radius:6px;color:var(--text-3);
  border:1px solid rgba(255,255,255,.14);background:rgba(255,255,255,.05);
}
.nav-search{flex:1 1 auto;max-width:520px}

.nav-links{display:flex;align-items:center;gap:22px;margin-left:auto}
.nav-link{
  position:relative;font-size:14px;font-weight:500;color:var(--text-2);
  padding:6px 0;white-space:nowrap;transition:color var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform var(--ease);
}
.nav-link:hover{color:var(--text)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--brand)}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:12px;cursor:pointer;
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.14);color:var(--text);
}
.nav-toggle:hover{border-color:var(--brand);color:var(--brand)}

/* 移动端抽屉 */
.drawer{
  position:fixed;top:0;left:0;right:0;z-index:90;
  height:88vh;overflow-y:auto;
  background:rgba(11,9,19,.96);
  backdrop-filter:blur(14px) saturate(120%);
  border-bottom:1px solid var(--line);
  border-radius:0 0 20px 20px;
  padding:22px 20px 30px;
  display:none;
}
.drawer.is-open{display:block;animation:drawerIn .2s ease both}
@keyframes drawerIn{from{opacity:0;transform:translateY(-12px)}to{opacity:1;transform:translateY(0)}}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-title{font-size:15px;font-weight:600;color:var(--text-2)}
.drawer-close{
  width:38px;height:38px;border-radius:12px;cursor:pointer;color:var(--text);
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.14);
  display:flex;align-items:center;justify-content:center;
}
.drawer-close:hover{border-color:var(--brand);color:var(--brand)}
.drawer .search{height:44px;border-radius:12px;margin-bottom:20px;max-width:none}
.drawer-list{display:flex;flex-direction:column;gap:4px;margin-bottom:22px}
.drawer-list a{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:14px 4px;border-bottom:1px solid var(--line);
  font-size:16px;color:var(--text);font-weight:500;
}
.drawer-list a span.idx{font-size:12px;color:var(--text-3);font-variant-numeric:tabular-nums;margin-right:10px}
.drawer-list a:hover{color:var(--brand)}
.drawer-list a.is-active{color:var(--brand)}
.drawer-cta{display:flex;flex-direction:column;gap:12px}

/* ---------- 分类页首屏 ---------- */
.page-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line);padding:34px 0 62px}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:url(/assets/images/backpic/back-2.webp) center/cover no-repeat;
  opacity:.6;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,var(--bg-0) 0%,rgba(11,9,19,.94) 40%,rgba(11,9,19,.45) 100%);
}
.page-hero .container{position:relative;z-index:2}
.breadcrumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);margin-bottom:26px;
}
.breadcrumb a{color:var(--text-3)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:var(--text-3);opacity:.6}
.breadcrumb .current{color:var(--text-2);max-width:60ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.hero-grid{display:grid;grid-template-columns:1.35fr .85fr;gap:44px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  height:26px;padding:0 12px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;letter-spacing:.04em;
  color:var(--accent);border:1px solid rgba(255,61,127,.5);background:rgba(255,61,127,.10);
  margin-bottom:18px;
}
.page-hero h1{
  font-size:clamp(26px,3.6vw,44px);line-height:1.2;letter-spacing:-.02em;
  max-width:20ch;margin-bottom:18px;
}
.page-hero h1 em{font-style:normal;color:var(--brand)}
.hero-sub{font-size:16px;line-height:1.85;color:var(--text-2);max-width:54ch;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px}
.hero-stats{display:flex;flex-wrap:wrap;gap:34px}
.stat-num{font-size:26px;font-weight:700;line-height:1.1;color:var(--brand);font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.stat-label{font-size:13px;color:var(--text-3);margin-top:4px}

.quick-card{
  position:relative;padding:24px;border-radius:var(--r-card);
  background:var(--glass);backdrop-filter:blur(14px) saturate(120%);
  border:1px solid var(--card-line);box-shadow:var(--shadow);
}
.quick-card .qc-badge{
  position:absolute;top:-11px;right:18px;
  height:24px;padding:0 12px;border-radius:var(--r-pill);
  display:inline-flex;align-items:center;
  font-size:12px;font-weight:600;color:var(--accent);
  background:rgba(255,61,127,.14);border:1px solid rgba(255,61,127,.55);
  backdrop-filter:blur(6px);
}
.qc-title{font-size:14px;color:var(--text-2);margin-bottom:14px;letter-spacing:.02em}
.qc-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:11px 0;border-bottom:1px dashed rgba(255,255,255,.10);font-size:14px}
.qc-row:last-of-type{border-bottom:0}
.qc-row .k{color:var(--text-2)}
.qc-row .v{color:var(--text);font-weight:600}
.qc-row.is-rec .k,.qc-row.is-rec .v{color:var(--brand)}
.qc-note{font-size:12px;color:var(--text-3);margin-top:14px;line-height:1.7}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0}
.section--tight{padding:64px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:36px}
.section-head h2{font-size:clamp(22px,2.6vw,34px);letter-spacing:-.02em}
.section-head p{font-size:15px;color:var(--text-2);margin-top:10px;max-width:62ch}
.section-head .head-link{flex-shrink:0}

/* ---------- 筛选条 ---------- */
.filter-bar{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:14px 18px;margin-bottom:22px;
  border-radius:var(--r-pill);
  background:rgba(255,255,255,.035);
  border:1px solid var(--card-line);
}
.chips{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.chip{
  height:34px;padding:0 16px;border-radius:var(--r-pill);
  font-size:14px;font-weight:500;color:var(--text-2);cursor:pointer;
  background:transparent;border:1px solid rgba(255,255,255,.12);
  transition:all var(--ease);white-space:nowrap;
}
.chip:hover{color:var(--text);border-color:rgba(255,255,255,.28)}
.chip.is-active{
  color:var(--brand-ink);background:var(--brand);border-color:var(--brand);font-weight:600;
  box-shadow:0 0 0 1px rgba(184,255,46,.30),0 6px 18px rgba(184,255,46,.18);
}
.sort-wrap{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text-3)}
.select{
  appearance:none;-webkit-appearance:none;
  height:36px;padding:0 34px 0 14px;border-radius:10px;
  color:var(--text);background-color:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.14);cursor:pointer;
  background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%23A9A5BF' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 12px center;
  transition:border-color var(--ease);
}
.select:hover{border-color:rgba(184,255,46,.45)}
.sort-hint{font-size:13px;color:var(--text-3);margin-bottom:14px;min-height:20px}

/* ---------- 对比矩阵 ---------- */
.matrix-wrap{
  overflow-x:auto;border-radius:var(--r-card);
  border:1px solid var(--card-line);
  background:linear-gradient(160deg,rgba(255,255,255,.055),rgba(255,255,255,.018));
  backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow);
  -webkit-overflow-scrolling:touch;
}
table.matrix{width:100%;min-width:860px;border-collapse:separate;border-spacing:0}
.matrix th,.matrix td{
  padding:16px 20px;text-align:left;font-size:14px;vertical-align:middle;
  border-bottom:1px solid rgba(255,255,255,.06);
}
.matrix tbody tr:last-child th,.matrix tbody tr:last-child td{border-bottom:0}
.matrix thead th{
  position:sticky;top:0;z-index:2;
  background:var(--bg-1);
  font-size:13px;font-weight:600;color:var(--text-2);letter-spacing:.03em;
  border-bottom:1px solid var(--card-line);
}
.matrix thead th .th-tier{display:block;font-size:16px;font-weight:700;color:var(--text);margin-top:4px;letter-spacing:0}
.matrix thead th .th-desc{display:block;font-size:12px;color:var(--text-3);font-weight:400;margin-top:2px;letter-spacing:0}
.matrix tbody th{
  position:sticky;left:0;z-index:1;
  background:var(--bg-1);
  font-weight:600;color:var(--text-2);font-size:13.5px;white-space:nowrap;
  border-right:1px solid var(--card-line);
}
.matrix thead th:first-child{
  left:0;z-index:4;border-right:1px solid var(--card-line);
  color:var(--text-3);font-weight:500;
}
.matrix td{color:var(--text);line-height:1.7}
.matrix .is-rec{background:rgba(184,255,46,.055);box-shadow:inset 1px 0 0 rgba(184,255,46,.30),inset -1px 0 0 rgba(184,255,46,.30)}
.matrix thead th.is-rec{background:#1B2412;color:var(--brand)}
.matrix thead th.is-rec .th-tier{color:var(--brand)}
.matrix td.is-focus,.matrix th.is-focus{background:rgba(184,255,46,.12)}
.matrix .rec-tag{
  display:inline-flex;align-items:center;height:22px;padding:0 9px;margin-left:8px;
  border-radius:var(--r-pill);font-size:11px;font-weight:600;letter-spacing:.04em;
  color:var(--brand);border:1px solid rgba(184,255,46,.55);background:rgba(184,255,46,.10);
  vertical-align:middle;
}
.matrix .muted{color:var(--text-3);font-size:13px}

/* ---------- 差异解读卡 ---------- */
.diff-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.diff-card{
  padding:26px;border-radius:var(--r-card);
  background:var(--glass);backdrop-filter:blur(14px) saturate(120%);
  border:1px solid var(--card-line);box-shadow:var(--shadow);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.diff-card:hover{transform:translateY(-4px);border-color:rgba(184,255,46,.35);box-shadow:var(--shadow-lg)}
.diff-card .tag{
  display:inline-flex;align-items:center;height:24px;padding:0 11px;margin-bottom:16px;
  border-radius:var(--r-pill);font-size:12px;font-weight:600;
  color:var(--text-2);background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.10);
}
.diff-card .tag.warn{color:var(--accent);border-color:rgba(255,61,127,.5);background:rgba(255,61,127,.10)}
.diff-card .tag.ok{color:var(--brand);border-color:rgba(184,255,46,.5);background:rgba(184,255,46,.10)}
.diff-card h3{font-size:19px;margin-bottom:10px}
.diff-card p{font-size:14.5px;color:var(--text-2);line-height:1.85}
.diff-card ul{margin-top:16px;display:flex;flex-direction:column;gap:10px}
.diff-card li{position:relative;padding-left:18px;font-size:14px;color:var(--text-2);line-height:1.75}
.diff-card li::before{
  content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:50%;
  background:var(--brand);
}

/* ---------- 图文区块 ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.split .media{border-radius:var(--r-card);overflow:hidden;border:1px solid var(--card-line);box-shadow:var(--shadow)}
.split .media img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .4s ease}
.split .media:hover img{transform:scale(1.03)}
.split h2{font-size:clamp(22px,2.6vw,32px);margin-bottom:16px;letter-spacing:-.02em}
.split p{font-size:15.5px;color:var(--text-2);line-height:1.85;margin-bottom:14px}
.check-list{display:flex;flex-direction:column;gap:12px;margin-top:20px}
.check-list li{display:flex;gap:12px;font-size:14.5px;color:var(--text-2);line-height:1.75}
.check-list .dot{
  flex-shrink:0;width:20px;height:20px;border-radius:50%;margin-top:4px;
  display:flex;align-items:center;justify-content:center;
  border:1px solid rgba(184,255,46,.55);color:var(--brand);background:rgba(184,255,46,.08);
}
.check-list .dot svg{width:11px;height:11px}

/* ---------- 步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;counter-reset:step}
.step{
  position:relative;padding:26px;border-radius:var(--r-card);
  background:rgba(255,255,255,.03);border:1px solid var(--card-line);
  transition:transform var(--ease),border-color var(--ease);
}
.step:hover{transform:translateY(-4px);border-color:rgba(184,255,46,.35)}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:50%;margin-bottom:16px;
  font-size:14px;font-weight:700;color:var(--brand);
  border:1px solid rgba(184,255,46,.5);background:rgba(184,255,46,.08);
  font-variant-numeric:tabular-nums;
}
.step h3{font-size:17px;margin-bottom:8px}
.step p{font-size:14px;color:var(--text-2);line-height:1.8}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{
  border-radius:var(--r-sm);overflow:hidden;
  background:linear-gradient(160deg,rgba(255,255,255,.055),rgba(255,255,255,.018));
  border:1px solid var(--card-line);
  transition:border-color var(--ease),background var(--ease);
}
.faq-item:hover{border-color:rgba(184,255,46,.28)}
.faq-item.is-open{border-color:rgba(184,255,46,.42)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;background:transparent;border:0;cursor:pointer;
  text-align:left;font-size:16px;font-weight:600;color:var(--text);line-height:1.6;
}
.faq-q:hover{color:var(--brand)}
.faq-icon{position:relative;flex-shrink:0;width:18px;height:18px;transition:transform var(--ease)}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--brand);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:14px;height:2px}
.faq-icon::after{width:2px;height:14px;transition:opacity var(--ease)}
.faq-item.is-open .faq-icon{transform:rotate(180deg)}
.faq-item.is-open .faq-icon::after{opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease}
.faq-a p{padding:0 20px 20px;font-size:14.5px;color:var(--text-2);line-height:1.85;max-width:75ch}

/* ---------- CTA 条 ---------- */
.cta-bar{
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:linear-gradient(90deg,rgba(184,255,46,.08),rgba(184,255,46,.02) 60%,transparent);
  position:relative;
}
.cta-bar::before,.cta-bar::after{
  content:"";position:absolute;top:0;bottom:0;width:3px;background:var(--brand);
}
.cta-bar::before{left:0}
.cta-bar::after{right:0}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;padding:44px 0}
.cta-inner h2{font-size:clamp(20px,2.4vw,28px);margin-bottom:8px;letter-spacing:-.02em}
.cta-inner p{font-size:14.5px;color:var(--text-2);max-width:60ch}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg-0);border-top:1px solid var(--line);padding:64px 0 26px;margin-top:0}
.footer-top{display:grid;grid-template-columns:1.1fr 1.6fr;gap:48px;padding-bottom:38px}
.footer-brand{font-size:20px;font-weight:700;color:var(--text);margin-bottom:12px}
.footer-brand em{font-style:normal;color:var(--brand)}
.footer-desc{font-size:14px;color:var(--text-2);line-height:1.85;max-width:42ch;margin-bottom:18px}
.footer-search .search{max-width:300px;height:42px}
.footer-cols{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.footer-col h4{font-size:14px;font-weight:600;color:var(--text);margin-bottom:14px}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14px;color:var(--text-2);display:inline-block;transition:color var(--ease),transform var(--ease)}
.footer-col a:hover{color:var(--brand);transform:translateX(2px)}
.footer-info{
  display:flex;flex-wrap:wrap;gap:12px 32px;
  padding:20px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;padding-top:22px;font-size:13px;color:var(--text-3)}
.footer-bottom a{color:var(--text-3)}
.footer-bottom a:hover{color:var(--brand)}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .nav-links{gap:16px}
  .nav-search{max-width:400px}
  .hero-grid{grid-template-columns:1.2fr .9fr;gap:32px}
  .section{padding:76px 0}
}
@media (max-width:1099px){
  .nav-links{display:none}
  .nav-actions .btn-ghost{display:none}
  .nav-toggle{display:flex}
  .nav-search{max-width:none}
  .header-inner{gap:16px}
  .diff-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .split{grid-template-columns:1fr;gap:28px}
  .split .media{order:-1}
}
@media (max-width:1023px){
  .section{padding:72px 0}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .page-hero{padding:28px 0 52px}
  .footer-top{grid-template-columns:1fr;gap:34px}
}
@media (max-width:767px){
  .container{padding:0 18px}
  body{font-size:15px;line-height:1.85}
  .header-inner{height:auto;padding:12px 0;flex-wrap:wrap;gap:12px}
  .brand{font-size:17px;order:1}
  .brand-sub{display:none}
  .nav-toggle{display:flex;order:0;width:38px;height:38px}
  .nav-actions{order:2;margin-left:auto}
  .nav-actions .btn-primary{height:36px;padding:0 14px;font-size:13px}
  .nav-search{order:3;flex:1 1 100%;max-width:none;height:44px;border-radius:12px}
  .search kbd{display:none}
  .page-hero h1{max-width:none;font-size:28px}
  .hero-sub{font-size:15px}
  .hero-actions .btn{width:100%}
  .hero-stats{gap:24px}
  .stat-num{font-size:22px}
  .section{padding:56px 0}
  .section-head{margin-bottom:26px}
  .filter-bar{border-radius:16px;padding:14px}
  .chips{gap:8px}
  .chip{height:32px;padding:0 13px;font-size:13px}
  .sort-wrap{width:100%;justify-content:space-between}
  .matrix th,.matrix td{padding:13px 15px;font-size:13.5px}
  .diff-card{padding:20px}
  .step{padding:20px}
  .faq-q{font-size:15px;padding:16px}
  .faq-a p{padding:0 16px 16px;font-size:14px}
  .cta-inner{padding:36px 0;flex-direction:column;align-items:flex-start}
  .cta-inner .btn{width:100%}
  .footer-cols{grid-template-columns:1fr 1fr;gap:22px}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (max-width:519px){
  .container{padding:0 16px}
  .page-hero h1{font-size:26px}
  .hero-stats{flex-direction:row;gap:20px;flex-wrap:wrap}
  .btn{height:46px;padding:0 20px;font-size:14.5px}
  .btn-lg{height:48px}
  .diff-card h3{font-size:17px}
  .footer-cols{grid-template-columns:1fr}
  .hero-actions{flex-direction:column;align-items:stretch}
}

/* roulang page: category4 */
:root{
  --bg-0:#0B0913;
  --bg-1:#141024;
  --bg-2:#1C1732;
  --brand:#B8FF2E;
  --brand-ink:#0B0913;
  --accent:#FF3D7F;
  --cyan:#4DD9FF;
  --text:#E8E6F2;
  --text-2:#A9A5BF;
  --text-3:#6E6A85;
  --line:rgba(255,255,255,.08);
  --card-line:rgba(255,255,255,.10);
  --glass:linear-gradient(160deg, rgba(255,255,255,.07), rgba(255,255,255,.02));
  --radius:16px;
  --radius-sm:12px;
  --shadow:0 8px 24px rgba(0,0,0,.45);
  --shadow-lg:0 16px 48px rgba(0,0,0,.55);
  --glow:0 0 0 1px rgba(184,255,46,.35), 0 8px 28px rgba(184,255,46,.22);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background-color:var(--bg-0);
  background-image:radial-gradient(rgba(255,255,255,.03) 1px, transparent 1px);
  background-size:22px 22px;
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
em{font-style:normal}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:8px}

.container{width:min(1200px,100% - 48px);margin-inline:auto}

/* ---------- 顶部品牌渐变线 ---------- */
.top-line{
  position:fixed;top:0;left:0;right:0;height:1px;z-index:80;
  background:linear-gradient(90deg,rgba(184,255,46,0),rgba(184,255,46,.75),rgba(184,255,46,0));
  pointer-events:none;
}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:70;
  background:rgba(11,9,19,.72);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border-bottom:1px solid var(--line);
  transition:background .22s ease,box-shadow .22s ease;
}
.site-header.is-scrolled{
  background:rgba(11,9,19,.9);
  box-shadow:0 10px 30px rgba(0,0,0,.45);
}
.header-inner{display:flex;align-items:center;gap:20px;height:76px}
.brand{
  font-size:19px;font-weight:700;letter-spacing:-.01em;white-space:nowrap;
  display:inline-flex;align-items:center;gap:2px;transition:opacity .18s ease;
}
.brand em{color:var(--brand)}
.brand:hover{opacity:.86}

.search{
  position:relative;display:flex;align-items:center;flex:1;max-width:520px;
  height:44px;padding:0 10px 0 14px;border-radius:999px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--card-line);
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.search:focus-within{
  border-color:var(--brand);
  background:rgba(255,255,255,.06);
  box-shadow:0 0 0 3px rgba(184,255,46,.18);
}
.search-icon{flex:none;color:var(--cyan);margin-right:9px;transition:color .2s ease}
.search:focus-within .search-icon{color:var(--brand)}
.search input{
  flex:1;min-width:0;height:100%;border:0;outline:none;background:none;
  color:var(--text);font-size:14px;font-family:inherit;
}
.search input::placeholder{color:var(--text-3)}
.search kbd{
  flex:none;margin-left:8px;font-family:inherit;font-size:12px;line-height:1;
  color:var(--text-3);border:1px solid var(--card-line);border-radius:6px;
  padding:4px 7px;background:rgba(255,255,255,.04);
}

.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
  position:relative;display:inline-block;padding:8px 10px;
  font-size:14.5px;font-weight:500;color:var(--text-2);white-space:nowrap;
  transition:color .18s ease;
}
.nav-link::after{
  content:"";position:absolute;left:10px;right:10px;bottom:2px;height:2px;
  background:var(--brand);border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform .2s ease;
}
.nav-link:hover{color:var(--text)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--brand)}
.nav-link.is-active::after{transform:scaleX(1)}

.header-actions{display:flex;align-items:center;gap:10px;flex:none}

.burger{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--card-line);background:rgba(255,255,255,.03);
  align-items:center;justify-content:center;color:var(--text);
  transition:border-color .18s ease,color .18s ease;
}
.burger:hover{border-color:var(--brand);color:var(--brand)}
.burger svg{display:block}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 24px;border-radius:999px;
  font-size:15px;font-weight:600;white-space:nowrap;cursor:pointer;
  border:1px solid transparent;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,border-color .18s ease,color .18s ease,filter .18s ease;
}
.btn-primary{background:var(--brand);color:var(--brand-ink);box-shadow:var(--glow)}
.btn-primary:hover{
  transform:translateY(-2px);
  filter:brightness(1.06);
  box-shadow:0 0 0 1px rgba(184,255,46,.5), 0 12px 34px rgba(184,255,46,.3);
}
.btn-primary:active{transform:translateY(0);filter:brightness(.98)}
.btn-ghost{
  background:rgba(255,255,255,.03);
  border-color:rgba(255,255,255,.16);
  color:var(--text);
}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-block{width:100%}
.btn-lg{height:52px;padding:0 28px}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:999px;font-size:12px;font-weight:600;letter-spacing:.02em;white-space:nowrap;
}
.badge-brand{border:1px solid rgba(184,255,46,.5);color:var(--brand);background:rgba(184,255,46,.08)}
.badge-accent{border:1px solid rgba(255,61,127,.5);color:var(--accent);background:rgba(255,61,127,.1)}
.badge-soft{border:1px solid transparent;background:rgba(255,255,255,.06);color:var(--text-2)}

.chip{
  display:inline-flex;align-items:center;gap:8px;height:38px;padding:0 18px;
  border-radius:999px;border:1px solid var(--card-line);
  background:rgba(255,255,255,.03);font-size:14px;color:var(--text-2);
  transition:border-color .18s ease,color .18s ease,transform .18s ease,background .18s ease;
}
.chip:hover{border-color:rgba(184,255,46,.45);color:var(--brand);transform:translateY(-2px);background:rgba(184,255,46,.06)}
.chip:active{transform:translateY(0)}

/* ---------- 首屏 ---------- */
.page-hero{
  position:relative;overflow:hidden;
  padding:48px 0 66px;
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(880px 360px at 10% -12%, rgba(184,255,46,.11), transparent 66%),
    radial-gradient(720px 380px at 92% -4%, rgba(255,61,127,.10), transparent 72%);
}
.breadcrumb{
  position:relative;z-index:1;
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);margin-bottom:26px;
}
.breadcrumb a{display:inline-flex;align-items:center;gap:6px;transition:color .18s ease}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:rgba(255,255,255,.18)}
.breadcrumb .now{color:var(--text-2)}

.hero-grid{
  position:relative;z-index:1;
  display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;
}
.hero-copy h1{
  margin:16px 0 18px;
  font-size:clamp(28px,4vw,46px);
  font-weight:700;line-height:1.16;letter-spacing:-.02em;
}
.hero-copy .lead{
  font-size:17px;line-height:1.85;color:var(--text-2);max-width:46ch;margin-bottom:28px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:30px}

.hero-stats{display:flex;flex-wrap:wrap;gap:14px 40px}
.stat b{
  display:block;font-size:26px;font-weight:700;line-height:1.2;
  font-variant-numeric:tabular-nums;color:var(--brand);letter-spacing:-.01em;
}
.stat span{font-size:13px;color:var(--text-3)}

.hero-visual{
  position:relative;overflow:hidden;border-radius:var(--radius);
  border:1px solid var(--card-line);box-shadow:var(--shadow-lg);
  aspect-ratio:4/3;background:var(--bg-2);
}
.hero-visual img{width:100%;height:100%;object-fit:cover}
.hero-visual::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,#0B0913 0%,rgba(11,9,19,.6) 42%,rgba(11,9,19,0) 92%);
}
.hero-visual .visual-tag{
  position:absolute;left:22px;bottom:22px;z-index:2;
  display:flex;flex-direction:column;gap:6px;
}
.hero-visual .visual-tag strong{font-size:16px;font-weight:600;color:var(--text)}
.hero-visual .visual-tag span{font-size:12px;color:var(--text-2)}

/* ---------- 快捷分组 ---------- */
.quick-links{border-bottom:1px solid var(--line);background:rgba(255,255,255,.015)}
.quick-links-inner{
  display:flex;align-items:center;gap:12px;flex-wrap:wrap;
  padding:20px 0;
}
.ql-label{font-size:13px;color:var(--text-3);letter-spacing:.06em}

/* ---------- 通用板块 ---------- */
.section{padding:84px 0}
.section-head{max-width:640px;margin-bottom:34px}
.section-head h2{
  font-size:clamp(22px,2.6vw,32px);font-weight:700;line-height:1.28;letter-spacing:-.01em;
  margin-bottom:12px;
}
.section-head p{color:var(--text-2);font-size:15px;line-height:1.85}

/* ---------- 问答两栏 ---------- */
.faq-layout{
  display:grid;grid-template-columns:minmax(0,1.9fr) minmax(0,1fr);
  gap:44px;align-items:start;
}
.faq-group + .faq-group{margin-top:38px}
.faq-group > h2{
  display:flex;align-items:center;gap:10px;
  font-size:20px;font-weight:600;margin-bottom:16px;letter-spacing:-.01em;
}
.faq-group > h2 .dot{
  width:8px;height:8px;border-radius:50%;background:var(--brand);flex:none;
  box-shadow:0 0 10px rgba(184,255,46,.65);
}
.faq-group > h2 small{font-size:13px;font-weight:400;color:var(--text-3);margin-left:6px}

.acc-item{
  margin-bottom:12px;border-radius:14px;overflow:hidden;
  background:rgba(255,255,255,.03);
  border:1px solid var(--line);
  transition:border-color .2s ease,background .2s ease,box-shadow .2s ease;
}
.acc-item:hover{border-color:rgba(184,255,46,.28)}
.acc-item.is-open{
  border-color:rgba(184,255,46,.42);
  background:linear-gradient(160deg,rgba(184,255,46,.07),rgba(255,255,255,.02));
  box-shadow:0 8px 24px rgba(0,0,0,.35);
}
.acc-head{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  width:100%;padding:17px 20px;text-align:left;
  font-size:15.5px;font-weight:600;line-height:1.55;color:var(--text);
  transition:color .18s ease;
}
.acc-head:hover{color:var(--brand)}
.acc-head .ico{
  position:relative;flex:none;width:22px;height:22px;border-radius:50%;
  border:1px solid rgba(255,255,255,.2);color:var(--text-2);
  display:grid;place-items:center;
  transition:transform .22s ease,background .2s ease,border-color .2s ease,color .2s ease;
}
.acc-head .ico::before,
.acc-head .ico::after{
  content:"";position:absolute;background:currentColor;border-radius:2px;
  transition:opacity .2s ease;
}
.acc-head .ico::before{width:9px;height:1.5px}
.acc-head .ico::after{width:1.5px;height:9px}
.acc-item.is-open .acc-head .ico{
  background:var(--brand);border-color:var(--brand);color:var(--brand-ink);
  transform:rotate(90deg);
}
.acc-item.is-open .acc-head .ico::after{opacity:0}
.acc-body{display:grid;grid-template-rows:0fr;transition:grid-template-rows .28s ease}
.acc-item.is-open .acc-body{grid-template-rows:1fr}
.acc-body > div{overflow:hidden;min-height:0}
.acc-body p{
  padding:0 20px 20px;font-size:14.5px;line-height:1.85;color:var(--text-2);
}
.acc-body p b{color:var(--text);font-weight:600}

/* ---------- 右侧咨询卡 ---------- */
.faq-aside{position:sticky;top:100px}
.aside-card{
  padding:26px;border-radius:18px;
  background:var(--glass);
  border:1px solid var(--card-line);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow);
}
.aside-card h3{font-size:18px;font-weight:600;margin-bottom:10px;line-height:1.5}
.aside-card > p{font-size:14px;line-height:1.85;color:var(--text-2);margin-bottom:18px}
.aside-note{
  margin-top:18px;padding-top:16px;border-top:1px solid var(--line);
  display:flex;flex-direction:column;gap:7px;font-size:13px;color:var(--text-3);
}
.aside-note span{display:flex;align-items:center;gap:8px}
.aside-note i{
  width:5px;height:5px;border-radius:50%;background:var(--cyan);flex:none;display:inline-block;
}
.aside-steps{margin-top:18px;padding-top:16px;border-top:1px solid var(--line)}
.aside-steps h4{font-size:13px;color:var(--text);font-weight:600;margin-bottom:12px;letter-spacing:.04em}
.aside-steps ol{display:flex;flex-direction:column;gap:10px}
.aside-steps li{
  display:flex;gap:10px;font-size:13.5px;color:var(--text-2);line-height:1.7;
}
.aside-steps li b{
  flex:none;width:20px;height:20px;border-radius:6px;display:grid;place-items:center;
  font-size:11px;font-weight:700;color:var(--brand-ink);background:var(--brand);
  font-variant-numeric:tabular-nums;
}

/* ---------- 提问前准备 ---------- */
.prep{background:linear-gradient(180deg,rgba(255,255,255,.02),rgba(255,255,255,0))}
.prep-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.prep-card{
  padding:26px 24px;border-radius:var(--radius);
  background:rgba(255,255,255,.03);
  border:1px solid var(--line);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.prep-card:hover{
  transform:translateY(-4px);
  border-color:rgba(184,255,46,.35);
  box-shadow:0 12px 30px rgba(0,0,0,.35);
}
.prep-num{
  font-size:13px;font-weight:700;letter-spacing:.1em;color:var(--brand);
  font-variant-numeric:tabular-nums;
}
.prep-card h3{font-size:17px;font-weight:600;margin:10px 0 8px}
.prep-card p{font-size:14px;line-height:1.85;color:var(--text-2)}

/* ---------- CTA 条 ---------- */
.cta-section{padding:0 0 88px}
.cta-bar{
  position:relative;overflow:hidden;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  padding:34px 40px;border-radius:20px;
  background:
    radial-gradient(600px 200px at 88% 0%, rgba(255,61,127,.14), transparent 70%),
    rgba(184,255,46,.07);
  border:1px solid rgba(184,255,46,.24);
}
.cta-bar::before,.cta-bar::after{
  content:"";position:absolute;top:16px;bottom:16px;width:3px;border-radius:3px;background:var(--brand);
}
.cta-bar::before{left:0}
.cta-bar::after{right:0}
.cta-bar h2{font-size:clamp(20px,2.4vw,26px);font-weight:700;margin-bottom:8px;letter-spacing:-.01em}
.cta-bar p{font-size:14.5px;color:var(--text-2);max-width:52ch;line-height:1.8}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--bg-0);
  border-top:1px solid var(--line);
  padding:64px 0 30px;
}
.footer-top{display:grid;grid-template-columns:1.15fr 1.6fr;gap:56px}
.footer-brand{font-size:20px;font-weight:700;letter-spacing:-.01em}
.footer-brand em{color:var(--brand)}
.footer-desc{
  font-size:14px;line-height:1.85;color:var(--text-2);
  margin:14px 0 20px;max-width:42ch;
}
.footer-search .search{max-width:330px}
.footer-cols{display:grid;grid-template-columns:repeat(3,1fr);gap:32px}
.footer-col h4{
  font-size:14px;font-weight:600;margin-bottom:16px;color:var(--text);letter-spacing:.02em;
}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{
  display:inline-block;font-size:14px;color:var(--text-2);
  transition:color .18s ease,transform .18s ease;
}
.footer-col a:hover{color:var(--brand);transform:translateX(2px)}
.footer-info{
  display:flex;flex-wrap:wrap;gap:10px 28px;
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  margin-top:20px;padding-top:20px;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}

/* ---------- 移动抽屉 ---------- */
.mobile-drawer{
  position:fixed;inset:0;z-index:95;
  padding:22px 22px 40px;overflow-y:auto;
  background:rgba(11,9,19,.95);
  backdrop-filter:blur(18px) saturate(120%);
  -webkit-backdrop-filter:blur(18px) saturate(120%);
  opacity:0;visibility:hidden;transform:translateY(-14px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s;
}
.mobile-drawer.is-open{opacity:1;visibility:visible;transform:translateY(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.drawer-close{
  width:40px;height:40px;border-radius:12px;border:1px solid var(--card-line);
  display:grid;place-items:center;color:var(--text);background:rgba(255,255,255,.03);
}
.drawer-close:hover{border-color:var(--brand);color:var(--brand)}
.drawer-list{display:flex;flex-direction:column;gap:4px;margin:20px 0 26px}
.drawer-list a{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 4px;font-size:16px;color:var(--text-2);
  border-bottom:1px solid var(--line);
  transition:color .18s ease;
}
.drawer-list a:hover,.drawer-list a.is-active{color:var(--brand)}
.drawer-list a span:first-child{display:flex;align-items:center;gap:12px}
.drawer-list a i{
  font-style:normal;font-size:12px;color:var(--text-3);font-variant-numeric:tabular-nums;
}
.drawer-cta{display:flex;flex-direction:column;gap:12px}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .hero-grid{gap:36px}
  .faq-layout{gap:32px}
}

@media (max-width:1023px){
  .container{width:calc(100% - 64px)}
  .header-inner{height:72px;gap:14px}
  .nav-link{font-size:14px;padding:8px 7px}
  .search{max-width:360px}
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .hero-visual{aspect-ratio:16/9;order:2}
  .hero-copy .lead{max-width:none}
  .section{padding:72px 0}
  .faq-layout{grid-template-columns:1fr;gap:34px}
  .faq-aside{position:static;order:-1}
  .prep-grid{grid-template-columns:1fr 1fr}
  .footer-top{grid-template-columns:1fr;gap:36px}
  .footer-cols{gap:24px}
  .cta-section{padding-bottom:72px}
}

@media (max-width:900px){
  .nav-links{display:none}
  .burger{display:inline-flex}
  .header-inner{flex-wrap:wrap;height:auto;padding:12px 0;row-gap:12px}
  .brand{order:1;flex:1}
  .header-actions{order:2}
  .nav-search{order:3;flex:1 0 100%;max-width:none}
  .search{max-width:none}
}

@media (max-width:767px){
  body{font-size:15px;line-height:1.85}
  .container{width:calc(100% - 40px)}
  .page-hero{padding:30px 0 46px}
  .hero-copy h1{margin:14px 0 14px}
  .hero-copy .lead{font-size:16px;margin-bottom:22px}
  .hero-stats{gap:12px 26px}
  .stat b{font-size:22px}
  .section{padding:56px 0}
  .section-head{margin-bottom:26px}
  .prep-grid{grid-template-columns:1fr}
  .footer-cols{grid-template-columns:1fr 1fr;gap:26px 20px}
  .cta-bar{padding:26px 24px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1}
  .footer-info{margin-top:32px}
  .acc-head{font-size:15px;padding:15px 16px}
  .acc-body p{padding:0 16px 18px}
  .aside-card{padding:22px}
}

@media (max-width:520px){
  .container{width:calc(100% - 32px)}
  .btn{padding:0 18px;font-size:14.5px}
  .btn-lg{height:48px}
  .hero-actions .btn{flex:1}
  .header-actions .btn-ghost{display:none}
  .footer-cols{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .hero-visual .visual-tag{left:16px;bottom:16px}
  .quick-links-inner{padding:16px 0}
  .cta-bar{padding:22px 18px}
}

/* roulang page: category5 */
:root{
  --bg-0:#0B0913;
  --bg-1:#141024;
  --bg-2:#1C1732;
  --brand:#B8FF2E;
  --brand-ink:#0B0913;
  --accent:#FF3D7F;
  --cyan:#4DD9FF;
  --text:#E8E6F2;
  --text-2:#A9A5BF;
  --text-3:#6E6A85;
  --line:rgba(255,255,255,.08);
  --card-line:rgba(255,255,255,.10);
  --glass:linear-gradient(160deg, rgba(255,255,255,.07), rgba(255,255,255,.02));
  --glass-flat:rgba(255,255,255,.04);
  --r-lg:16px;
  --r-md:12px;
  --r-pill:999px;
  --shadow:0 8px 24px rgba(0,0,0,.45);
  --shadow-lg:0 16px 48px rgba(0,0,0,.55);
  --glow:0 0 0 1px rgba(184,255,46,.35), 0 8px 28px rgba(184,255,46,.22);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background-color:var(--bg-0);
  background-image:radial-gradient(rgba(255,255,255,.03) 1px, transparent 1px);
  background-size:22px 22px;
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  top:0;left:0;right:0;
  height:1px;
  background:linear-gradient(90deg, rgba(184,255,46,0), rgba(184,255,46,.85), rgba(184,255,46,0));
  z-index:80;
  pointer-events:none;
}
img{max-width:100%;display:block;border-radius:var(--r-md)}
a{color:var(--text);text-decoration:none}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--cyan);
  outline-offset:2px;
}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;letter-spacing:-.01em;line-height:1.3}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:70;
  background:rgba(11,9,19,.72);
  border-bottom:1px solid transparent;
  transition:background .22s ease,border-color .22s ease,backdrop-filter .22s ease;
}
.site-header.is-scrolled{
  background:rgba(11,9,19,.86);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border-bottom-color:var(--line);
}
.header-inner{display:flex;align-items:center;gap:18px;min-height:74px}
.brand{
  font-size:19px;font-weight:700;white-space:nowrap;letter-spacing:-.01em;
  color:var(--text);flex:none;transition:opacity .18s ease;
}
.brand em{font-style:normal;color:var(--brand)}
.brand:hover{opacity:.85}
.search{
  display:flex;align-items:center;gap:10px;
  height:44px;padding:0 8px 0 14px;
  background:rgba(255,255,255,.05);
  border:1px solid var(--card-line);
  border-radius:var(--r-pill);
  transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;
}
.search-icon{color:var(--cyan);flex:none;transition:color .18s ease}
.search input[type="search"]{
  flex:1;min-width:0;height:100%;
  background:transparent;border:0;outline:none;
  color:var(--text);font-size:14px;font-family:inherit;
}
.search input[type="search"]::placeholder{color:var(--text-3)}
.search input[type="search"]::-webkit-search-cancel-button{-webkit-appearance:none}
.search:focus-within{
  border-color:var(--brand);
  background:rgba(255,255,255,.07);
  box-shadow:0 0 0 3px rgba(184,255,46,.18);
}
.search:focus-within .search-icon{color:var(--brand)}
.search kbd{
  flex:none;font-family:inherit;font-size:11px;line-height:1;
  color:var(--text-3);background:rgba(255,255,255,.06);
  border:1px solid var(--line);border-radius:6px;
  padding:5px 7px;white-space:nowrap;
}
.search-main{flex:1 1 420px;max-width:520px}
.nav-links{display:flex;align-items:center;gap:20px;margin-left:auto;flex:none}
.nav-link{
  position:relative;display:inline-block;
  padding:6px 0;font-size:14.5px;font-weight:500;
  color:var(--text-2);white-space:nowrap;
  transition:color .18s ease;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--brand);border-radius:2px;
  transform:scaleX(0);transform-origin:left;
  transition:transform .18s ease;
}
.nav-link:hover{color:var(--text)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--brand)}
.nav-link.is-active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:10px;flex:none}
.hamburger{
  display:none;width:44px;height:44px;flex:none;
  align-items:center;justify-content:center;
  background:rgba(255,255,255,.05);
  border:1px solid var(--card-line);border-radius:12px;
  color:var(--text);cursor:pointer;
}
.mobile-search{display:none;padding:0 24px 14px}
.mobile-search .search{height:44px;border-radius:12px;width:100%}
.drawer{
  position:fixed;inset:0;z-index:90;
  display:none;
  background:rgba(11,9,19,.94);
  backdrop-filter:blur(16px) saturate(120%);
  -webkit-backdrop-filter:blur(16px) saturate(120%);
  overflow-y:auto;
  padding:22px 24px 40px;
}
.drawer.is-open{display:block;animation:drawerIn .2s ease both}
@keyframes drawerIn{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:translateY(0)}}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.drawer-close{
  width:42px;height:42px;display:grid;place-items:center;
  background:rgba(255,255,255,.05);border:1px solid var(--card-line);
  border-radius:12px;color:var(--text);cursor:pointer;
}
.drawer .search{width:100%;border-radius:12px;margin-bottom:24px}
.drawer-list{display:grid;gap:4px;margin-bottom:26px}
.drawer-list a{
  display:flex;align-items:center;justify-content:space-between;
  padding:15px 4px;font-size:16px;color:var(--text-2);
  border-bottom:1px solid var(--line);
}
.drawer-list a span.idx{color:var(--text-3);font-size:13px;margin-right:12px;font-variant-numeric:tabular-nums}
.drawer-list a.is-active{color:var(--brand)}
.drawer-cta{display:grid;grid-template-columns:1fr 1fr;gap:12px}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 24px;
  border-radius:var(--r-pill);
  border:1px solid transparent;
  font-size:15px;font-weight:600;font-family:inherit;
  cursor:pointer;white-space:nowrap;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,border-color .18s ease,color .18s ease,filter .18s ease;
}
.btn-primary{
  background:var(--brand);color:var(--brand-ink);
  box-shadow:var(--glow);
}
.btn-primary:hover{
  filter:brightness(1.08);
  transform:translateY(-2px);
  box-shadow:0 0 0 1px rgba(184,255,46,.45), 0 14px 36px rgba(184,255,46,.30);
}
.btn-primary:active{transform:translateY(0);filter:brightness(.96)}
.btn-ghost{
  background:rgba(255,255,255,.04);
  border-color:rgba(255,255,255,.16);
  color:var(--text);
}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--brand);font-size:14.5px;font-weight:600;
  background:none;border:0;padding:0;cursor:pointer;
}
.btn-text svg{transition:transform .18s ease}
.btn-text:hover svg{transform:translateX(4px)}
.btn-sm{height:38px;padding:0 18px;font-size:14px}
.btn-lg{height:52px;padding:0 28px;font-size:15.5px}

/* ============ 徽章 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:24px;padding:0 10px;
  border-radius:var(--r-pill);
  font-size:12px;font-weight:600;line-height:1;
  letter-spacing:.02em;white-space:nowrap;
}
.badge-accent{color:var(--accent);border:1px solid rgba(255,61,127,.65);background:rgba(255,61,127,.10)}
.badge-brand{color:var(--brand);border:1px solid rgba(184,255,46,.55);background:rgba(184,255,46,.08)}
.badge-plain{color:var(--text-2);background:rgba(255,255,255,.06);border:1px solid transparent}
.badge-dot{width:6px;height:6px;border-radius:50%;background:currentColor;flex:none}

/* ============ 面包屑 ============ */
.crumbs{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);margin-bottom:22px;
}
.crumbs a{color:var(--text-3);transition:color .18s ease}
.crumbs a:hover{color:var(--brand)}
.crumbs .sep{color:var(--text-3);opacity:.6}
.crumbs .now{color:var(--text-2)}

/* ============ 首屏 ============ */
.page-hero{
  position:relative;overflow:hidden;
  border-bottom:1px solid var(--line);
  background:var(--bg-0);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center right;
  opacity:.55;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,#0B0913 0%,rgba(11,9,19,.95) 40%,rgba(11,9,19,.62) 72%,rgba(11,9,19,.35) 100%);
}
.page-hero .container{position:relative;z-index:1;padding:52px 24px 68px}
.hero-grid{display:grid;grid-template-columns:1.35fr .65fr;gap:48px;align-items:end}
.hero-title{
  font-size:clamp(28px,4vw,46px);
  font-weight:700;line-height:1.18;letter-spacing:-.02em;
  margin-bottom:18px;max-width:720px;
}
.hero-title em{font-style:normal;color:var(--brand)}
.hero-sub{color:var(--text-2);font-size:16px;max-width:620px;margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:22px}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px 18px;color:var(--text-3);font-size:13.5px}
.hero-meta span{display:inline-flex;align-items:center;gap:7px}
.hero-meta svg{color:var(--cyan);flex:none}
.hero-card{
  position:relative;
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border:1px solid var(--card-line);
  border-radius:var(--r-lg);
  padding:26px;
  box-shadow:var(--shadow);
}
.hero-card .badge{position:absolute;top:-12px;right:20px}
.hero-card-num{
  font-size:clamp(26px,3vw,34px);font-weight:700;
  font-variant-numeric:tabular-nums;letter-spacing:-.02em;
  color:var(--brand);line-height:1.2;margin:14px 0 10px;
}
.hero-card p{color:var(--text-2);font-size:14px;line-height:1.75}
.hero-card-divider{height:1px;background:var(--line);margin:18px 0}
.hero-card-list{display:grid;gap:9px;font-size:13.5px;color:var(--text-2)}
.hero-card-list li{display:flex;gap:9px;align-items:flex-start}
.hero-card-list svg{flex:none;margin-top:5px;color:var(--brand)}

/* ============ 指标条 ============ */
.metrics{
  border-bottom:1px solid var(--line);
  background:rgba(255,255,255,.015);
}
.metrics-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.metric{
  padding:32px 24px;
  border-left:1px solid var(--line);
}
.metric:first-child{border-left:0;padding-left:0}
.metric-num{
  font-size:32px;font-weight:700;line-height:1.15;
  color:var(--brand);font-variant-numeric:tabular-nums;
  letter-spacing:-.02em;margin-bottom:6px;
}
.metric-label{font-size:13px;color:var(--text-3)}

/* ============ 通用板块 ============ */
.section{padding:88px 0}
.section-alt{background:rgba(255,255,255,.015);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:760px;margin-bottom:40px}
.section-head h2{
  font-size:clamp(22px,2.6vw,34px);
  font-weight:700;margin-bottom:12px;letter-spacing:-.015em;
}
.section-head p{color:var(--text-2);font-size:15.5px}
.section-head.row{
  max-width:none;display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;
}

/* ============ 服务清单 ============ */
.svc-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.svc-card{
  display:flex;gap:18px;align-items:flex-start;
  padding:26px;
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border:1px solid var(--card-line);
  border-radius:var(--r-lg);
  transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.svc-card:hover{
  transform:translateY(-4px);
  border-color:rgba(184,255,46,.35);
  box-shadow:var(--shadow);
}
.svc-icon{
  width:46px;height:46px;flex:none;
  display:grid;place-items:center;
  border-radius:12px;
  border:1px solid rgba(77,217,255,.32);
  background:rgba(77,217,255,.07);
  color:var(--cyan);
  transition:color .18s ease,border-color .18s ease,background .18s ease;
}
.svc-card:hover .svc-icon{color:var(--brand);border-color:rgba(184,255,46,.4);background:rgba(184,255,46,.08)}
.svc-body h3{font-size:18px;font-weight:600;margin-bottom:8px}
.svc-body p{font-size:14.5px;color:var(--text-2);line-height:1.78}
.svc-tag{margin-top:14px;display:flex;flex-wrap:wrap;gap:8px}

/* ============ 时间轴 ============ */
.timeline{position:relative;max-width:920px}
.timeline::before{
  content:"";position:absolute;left:104px;top:14px;bottom:14px;
  width:1px;background:var(--line);
}
.tl-item{display:grid;grid-template-columns:104px 1fr;gap:34px;padding-bottom:34px}
.tl-item:last-child{padding-bottom:0}
.tl-time{
  color:var(--brand);font-size:13.5px;font-weight:600;
  font-variant-numeric:tabular-nums;text-align:right;padding-top:4px;line-height:1.6;
}
.tl-body{position:relative;padding-left:2px}
.tl-body::before{
  content:"";position:absolute;left:-39px;top:9px;
  width:9px;height:9px;border-radius:50%;
  background:var(--bg-0);border:2px solid var(--brand);
  box-shadow:0 0 0 4px rgba(184,255,46,.10);
}
.tl-body h3{font-size:17px;font-weight:600;margin-bottom:8px}
.tl-body p{font-size:14.5px;color:var(--text-2);line-height:1.8;max-width:640px}

/* ============ 图文区块 ============ */
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.split-figure{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--card-line);box-shadow:var(--shadow);
  background:var(--bg-2);aspect-ratio:16/10;
}
.split-figure img{width:100%;height:100%;object-fit:cover;border-radius:0}
.split-figure .figure-badge{
  position:absolute;left:18px;bottom:18px;z-index:1;
  background:rgba(11,9,19,.78);
  backdrop-filter:blur(10px);
  border:1px solid var(--card-line);
  border-radius:var(--r-pill);
  padding:7px 14px;font-size:12.5px;color:var(--text-2);
}
.split-figure .figure-badge b{color:var(--brand);font-weight:600}
.check-list{display:grid;gap:16px;margin-top:26px}
.check-item{display:flex;gap:14px;align-items:flex-start}
.check-mark{
  width:26px;height:26px;flex:none;margin-top:2px;
  display:grid;place-items:center;
  border-radius:8px;
  border:1px solid rgba(184,255,46,.4);
  background:rgba(184,255,46,.08);
  color:var(--brand);
}
.check-item h4{font-size:15.5px;font-weight:600;margin-bottom:4px}
.check-item p{font-size:14px;color:var(--text-2);line-height:1.75}

/* ============ 联系人 ============ */
.contact-card{
  display:flex;align-items:center;gap:24px;flex-wrap:wrap;
  padding:28px;
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border:1px solid var(--card-line);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow);
}
.avatar{
  width:64px;height:64px;flex:none;border-radius:50%;
  display:grid;place-items:center;
  background:linear-gradient(150deg, rgba(184,255,46,.22), rgba(77,217,255,.14));
  border:1px solid rgba(184,255,46,.35);
  color:var(--brand);font-size:20px;font-weight:700;
}
.contact-info{flex:1 1 260px;min-width:0}
.contact-info h3{font-size:18px;font-weight:600;margin-bottom:6px}
.contact-info p{font-size:14px;color:var(--text-2)}
.contact-info .contact-line{display:flex;flex-wrap:wrap;gap:8px 22px;margin-top:10px;font-size:13.5px;color:var(--text-3)}
.contact-line span{display:inline-flex;align-items:center;gap:7px}
.contact-line svg{color:var(--cyan);flex:none}
.contact-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ============ CTA 条 ============ */
.cta-band{
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  padding:30px 34px;
  border-radius:var(--r-lg);
  border-left:3px solid var(--brand);
  border-right:3px solid var(--brand);
  background:linear-gradient(90deg, rgba(184,255,46,.09), rgba(184,255,46,.03));
}
.cta-band h2{font-size:clamp(20px,2.2vw,26px);font-weight:700;margin-bottom:8px}
.cta-band p{font-size:14.5px;color:var(--text-2);max-width:620px}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--bg-0);
  border-top:1px solid var(--line);
  padding:64px 0 28px;
  margin-top:88px;
}
.footer-top{display:grid;grid-template-columns:minmax(260px,1.05fr) 1.5fr;gap:52px}
.footer-brand{font-size:19px;font-weight:700;margin-bottom:12px}
.footer-brand em{font-style:normal;color:var(--brand)}
.footer-desc{color:var(--text-2);font-size:14px;max-width:400px;margin-bottom:18px;line-height:1.75}
.footer-search .search{max-width:330px;height:40px}
.footer-cols{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.footer-col h4{font-size:14px;font-weight:600;color:var(--text);margin-bottom:14px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{
  color:var(--text-2);font-size:14px;
  display:inline-block;
  transition:color .18s ease,padding-left .18s ease;
}
.footer-col a:hover{color:var(--brand);padding-left:2px}
.footer-info{
  display:flex;flex-wrap:wrap;gap:14px 28px;
  color:var(--text-3);font-size:13px;
  border-top:1px solid var(--line);
  margin-top:44px;padding-top:22px;
}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  color:var(--text-3);font-size:13px;
  border-top:1px solid var(--line);
  margin-top:20px;padding-top:20px;
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .container{padding:0 32px}
  .hero-grid{grid-template-columns:1.2fr .8fr;gap:36px}
  .search-main{max-width:400px}
  .nav-links{gap:16px}
  .nav-link{font-size:14px}
}
@media (max-width:1100px){
  .search-main{display:none}
  .header-inner{min-height:70px}
}
@media (max-width:1023px){
  .section{padding:72px 0}
  .hero-grid{grid-template-columns:1fr;align-items:start;gap:32px}
  .page-hero .container{padding:36px 32px 56px}
  .metrics-grid{grid-template-columns:repeat(2,1fr)}
  .metric{padding:24px}
  .metric:nth-child(odd){border-left:0;padding-left:0}
  .metric:nth-child(3),.metric:nth-child(4){border-top:1px solid var(--line)}
  .split{grid-template-columns:1fr;gap:32px}
  .footer-top{grid-template-columns:1fr;gap:36px}
  .footer-cols{grid-template-columns:repeat(3,1fr)}
  .site-footer{margin-top:72px}
}
@media (max-width:900px){
  .nav-links{display:none}
  .header-actions{display:none}
  .hamburger{display:inline-flex;margin-left:auto}
  .mobile-search{display:block}
  .header-inner{flex-wrap:wrap;gap:12px;padding-top:12px}
  .site-header .header-inner{min-height:0}
  .brand{font-size:18px}
  .svc-grid{grid-template-columns:1fr}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .section{padding:56px 0}
  .page-hero .container{padding:28px 20px 44px}
  .hero-title{font-size:28px}
  .hero-sub{font-size:15px}
  .hero-actions{gap:10px}
  .hero-actions .btn{flex:1 1 auto}
  .hero-card{padding:22px}
  .metrics-grid{grid-template-columns:1fr 1fr}
  .metric{padding:20px 16px}
  .metric-num{font-size:26px}
  .svc-card{padding:20px;gap:14px}
  .timeline::before{left:76px}
  .tl-item{grid-template-columns:76px 1fr;gap:24px;padding-bottom:28px}
  .tl-body::before{left:-29px}
  .tl-time{font-size:12.5px}
  .cta-band{padding:24px 20px}
  .cta-band .btn{width:100%}
  .contact-card{padding:22px}
  .contact-actions{width:100%}
  .contact-actions .btn{flex:1 1 auto}
  .footer-cols{grid-template-columns:1fr 1fr;gap:24px}
  .footer-bottom{flex-direction:column;gap:8px}
  .footer-search .search{max-width:100%}
}
@media (max-width:479px){
  body{font-size:15px;line-height:1.85}
  .hero-title{font-size:26px}
  .svc-card{flex-direction:column;gap:12px}
  .metric{grid-column:span 2;border-left:0;padding-left:0;padding-right:0}
  .metric:nth-child(2){border-top:1px solid var(--line)}
  .timeline::before{left:0;top:10px;bottom:10px}
  .tl-item{grid-template-columns:1fr;gap:8px;padding-left:22px}
  .tl-body::before{left:-26px;top:6px}
  .tl-time{text-align:left}
  .footer-cols{grid-template-columns:1fr}
  .hero-actions .btn{width:100%}
  .drawer-cta{grid-template-columns:1fr}
}