/* roulang page: index */
*,*::before,*::after{box-sizing:border-box}
:root{
  --bg-0:#060A12;
  --bg-1:#0B1220;
  --bg-2:#101A2B;
  --primary:#19E3B1;
  --primary-2:#2AA9FF;
  --accent:#FF6A2B;
  --text-1:#E8F0FA;
  --text-2:#A6B6CC;
  --text-3:#6C7C93;
  --line:rgba(255,255,255,.08);
  --danger:#FF4D5E;
  --r-lg:18px;
  --r-md:14px;
  --r-sm:12px;
  --ease:cubic-bezier(.4,0,.2,1);
  --shadow-card:0 18px 50px rgba(0,0,0,.45);
  --shadow-float:0 24px 60px rgba(0,0,0,.55);
  --shadow-pop:0 30px 80px rgba(0,0,0,.7);
  --wrap:1200px;
}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-1);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
::selection{background:rgba(25,227,177,.28);color:#fff}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:#070B13}
::-webkit-scrollbar-thumb{background:rgba(25,227,177,.28);border-radius:99px;border:2px solid #070B13}
::-webkit-scrollbar-thumb:hover{background:rgba(25,227,177,.45)}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}

.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 20px}
@media(min-width:768px){.wrap{padding:0 32px}}
.section{padding:64px 0}
@media(min-width:1024px){.section{padding:96px 0}}
.grid-line{background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);background-size:32px 32px}
.mono{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

/* ============ header ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:70;
  height:60px;display:flex;align-items:center;
  background:rgba(6,10,18,.58);
  backdrop-filter:blur(12px) saturate(140%);
  -webkit-backdrop-filter:blur(12px) saturate(140%);
  border-bottom:1px solid transparent;
  transition:background 240ms var(--ease),border-color 240ms var(--ease);
}
@media(min-width:1024px){.site-header{height:72px}}
.site-header.scrolled{background:rgba(6,10,18,.92);border-bottom-color:var(--line)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:36px;height:36px;border-radius:11px;flex-shrink:0;
  background:linear-gradient(135deg,rgba(25,227,177,.9),rgba(42,169,255,.75));
  display:flex;align-items:center;justify-content:center;
  clip-path:polygon(16% 0,100% 0,100% 84%,84% 100%,0 100%,0 16%);
  box-shadow:0 6px 20px rgba(25,227,177,.28);
}
.brand-mark svg{width:20px;height:20px}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:1.0625rem;font-weight:800;letter-spacing:.01em;color:#fff}
.brand-text em{font-style:normal;font-size:.6875rem;color:var(--text-3);letter-spacing:.14em}
@media(max-width:400px){.brand-text em{display:none}}
.nav-desktop{display:none}
@media(min-width:1024px){
  .nav-desktop{display:flex;align-items:center;gap:4px}
}
.nav-link{
  display:inline-flex;align-items:center;height:38px;padding:0 14px;
  font-size:.8125rem;color:var(--text-2);border-radius:999px;
  border:1px solid transparent;white-space:nowrap;
  transition:color 200ms var(--ease),background 200ms var(--ease),border-color 200ms var(--ease);
}
.nav-link:hover{color:var(--text-1);background:rgba(255,255,255,.05)}
.nav-link.active{color:var(--primary);background:rgba(25,227,177,.12);border-color:rgba(25,227,177,.34)}
.header-right{display:flex;align-items:center;gap:10px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:999px;
  font-weight:600;font-size:.9375rem;letter-spacing:.02em;
  border:1px solid transparent;cursor:pointer;
  transition:transform 240ms var(--ease),box-shadow 240ms var(--ease),background 240ms var(--ease),filter 240ms var(--ease),border-color 240ms var(--ease);
}
.btn-sm{min-height:38px;padding:0 16px;font-size:.8125rem}
.btn-primary{
  background:linear-gradient(120deg,#FF7A3D,#FF4D2E);
  color:#0A0F18;
  box-shadow:0 10px 30px rgba(255,90,40,.35),inset 0 1px 0 rgba(255,255,255,.25);
  font-weight:700;
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 14px 42px rgba(255,90,40,.5),inset 0 1px 0 rgba(255,255,255,.25)}
.btn-primary:active{transform:translateY(-1px);box-shadow:0 6px 18px rgba(255,90,40,.3)}
.btn-ghost{
  background:rgba(255,255,255,.04);
  border-color:rgba(25,227,177,.4);
  color:var(--primary);
}
.btn-ghost:hover{background:rgba(25,227,177,.12);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(-1px)}
.btn-text{
  min-height:auto;padding:0;background:none;border:0;box-shadow:none;
  color:var(--primary);font-size:.875rem;
}
.btn-text .arw{transition:transform 200ms var(--ease);display:inline-block}
.btn-text:hover .arw{transform:translateX(4px)}
.hamburger{
  width:44px;height:44px;display:flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.05);border:1px solid var(--line);border-radius:12px;cursor:pointer;
}
.hamburger span{display:block;width:18px;height:2px;background:var(--text-1);border-radius:2px;position:relative}
.hamburger span::before,.hamburger span::after{content:'';position:absolute;left:0;width:18px;height:2px;background:var(--text-1);border-radius:2px}
.hamburger span::before{top:-6px}
.hamburger span::after{top:6px}
@media(min-width:1024px){.hamburger{display:none}}

/* drawer */
.drawer-overlay{
  position:fixed;inset:0;background:rgba(3,6,12,.72);backdrop-filter:blur(4px);
  opacity:0;visibility:hidden;transition:opacity 240ms var(--ease),visibility 240ms;z-index:80;
}
.drawer-overlay.show{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:84vw;max-width:360px;z-index:90;
  background:linear-gradient(160deg,rgba(16,26,43,.96),rgba(8,13,22,.98));
  border-left:1px solid var(--line);
  backdrop-filter:blur(18px);
  transform:translateX(100%);
  transition:transform 300ms var(--ease);
  padding:24px 22px;display:flex;flex-direction:column;gap:8px;overflow-y:auto;
}
.drawer.open{transform:translateX(0)}
.drawer-title{font-size:.75rem;letter-spacing:.16em;color:var(--text-3);margin:8px 0 6px}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  min-height:48px;padding:0 14px;border-radius:12px;
  color:var(--text-2);font-size:.9375rem;border:1px solid transparent;
  opacity:0;transform:translateX(12px);
}
.drawer.open .drawer-link{animation:drawerIn 320ms var(--ease) forwards}
.drawer.open .drawer-link:nth-child(2){animation-delay:40ms}
.drawer.open .drawer-link:nth-child(3){animation-delay:80ms}
.drawer.open .drawer-link:nth-child(4){animation-delay:120ms}
.drawer.open .drawer-link:nth-child(5){animation-delay:160ms}
.drawer.open .drawer-link:nth-child(6){animation-delay:200ms}
@keyframes drawerIn{to{opacity:1;transform:translateX(0)}}
.drawer-link:hover,.drawer-link.active{background:rgba(25,227,177,.1);color:var(--primary);border-color:rgba(25,227,177,.28)}
.drawer-divider{height:1px;background:var(--line);margin:14px 0}
.drawer-note{font-size:.75rem;color:var(--text-3);line-height:1.7;margin-top:auto}

/* ============ glass & cards ============ */
.glass{
  position:relative;
  background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  border:1px solid rgba(255,255,255,.10);
  border-radius:var(--r-lg);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow-card);
}
.glass::before{
  content:'';position:absolute;top:0;left:16px;right:16px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.38),transparent);
  pointer-events:none;
}
.card-hover{transition:transform 240ms var(--ease),border-color 240ms var(--ease),box-shadow 240ms var(--ease)}
.card-hover:hover{
  transform:translateY(-4px);
  border-color:rgba(25,227,177,.35);
  box-shadow:var(--shadow-card),0 0 32px rgba(25,227,177,.18);
}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;border:1px solid var(--line);
  font-size:.75rem;letter-spacing:.04em;color:var(--text-2);
  background:rgba(255,255,255,.03);white-space:nowrap;
}
.badge-primary{border-color:rgba(25,227,177,.4);color:var(--primary);background:rgba(25,227,177,.1)}
.badge-accent{border-color:rgba(255,106,43,.42);color:#FFB48C;background:rgba(255,106,43,.12)}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:.75rem;font-weight:600;letter-spacing:.2em;color:var(--primary);
}
.eyebrow::before{content:'';width:22px;height:1px;background:linear-gradient(90deg,var(--primary),transparent)}

.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:32px}
.sec-title{font-size:clamp(1.5rem,3.2vw,2.25rem);font-weight:700;line-height:1.3;letter-spacing:-.01em;margin-top:14px}
.sec-sub{color:var(--text-2);font-size:.9375rem;margin-top:12px;max-width:68ch;line-height:1.85}
.dotted{background-image:radial-gradient(rgba(255,255,255,.07) 1px,transparent 1px);background-size:18px 18px}

/* ============ hero ============ */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  transform:scale(1.02);
}
.hero-bg::after{
  content:'';position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,10,18,.55) 0%,rgba(6,10,18,.88) 62%,rgba(6,10,18,.96) 100%);
}
.hero-glow{
  position:absolute;left:-15%;top:2%;width:65%;height:85%;
  background:radial-gradient(circle at 42% 40%,rgba(25,227,177,.20),transparent 66%);
  pointer-events:none;
}
.hero-arc{position:absolute;right:-6%;bottom:-14%;width:52%;opacity:.14;pointer-events:none}
.hero-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1fr;gap:40px;
  padding-top:112px;padding-bottom:64px;
}
@media(min-width:1024px){
  .hero-inner{grid-template-columns:1.12fr .88fr;gap:56px;align-items:center;padding-top:150px;padding-bottom:96px}
}
.hero h1{
  font-size:clamp(2rem,5.2vw,3.4rem);font-weight:800;letter-spacing:-.02em;
  line-height:1.18;margin-top:18px;color:#fff;
}
.hero h1 em{font-style:normal;color:var(--primary)}
.hero-sub{color:var(--text-2);font-size:1.0625rem;line-height:1.85;margin-top:18px;max-width:34em}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-note{display:flex;align-items:flex-start;gap:8px;color:var(--text-3);font-size:.8125rem;line-height:1.7;margin-top:20px}
.hero-note svg{flex-shrink:0;margin-top:4px}

.status-card{padding:26px 24px}
.status-title{display:flex;align-items:center;justify-content:space-between;gap:12px}
.status-title h2{font-size:1rem;font-weight:700;letter-spacing:.01em}
.status-live{display:inline-flex;align-items:center;gap:7px;font-size:.75rem;color:var(--primary)}
.status-live i{width:7px;height:7px;border-radius:50%;background:var(--primary);box-shadow:0 0 0 0 rgba(25,227,177,.6);animation:pulse 2.6s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(25,227,177,.55)}70%{box-shadow:0 0 0 12px rgba(25,227,177,0)}100%{box-shadow:0 0 0 0 rgba(25,227,177,0)}}
.status-list{margin-top:20px;display:flex;flex-direction:column;gap:4px}
.status-item{display:flex;gap:14px;padding:16px 0;border-top:1px solid var(--line)}
.status-item:first-child{border-top:0;padding-top:4px}
.status-ico{
  width:36px;height:36px;flex-shrink:0;border-radius:11px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(25,227,177,.12);border:1px solid rgba(25,227,177,.26);
}
.status-item h3{font-size:.9375rem;font-weight:600;margin-bottom:4px}
.status-item p{font-size:.8125rem;color:var(--text-2);line-height:1.7}
.status-foot{margin-top:18px;padding-top:16px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}

/* ============ metrics ============ */
.metrics{padding:0;margin-top:-1px}
.metrics-grid{
  display:grid;grid-template-columns:1fr;gap:0;
  border-radius:var(--r-lg);overflow:hidden;
}
@media(min-width:640px){.metrics-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.metrics-grid{grid-template-columns:repeat(4,1fr)}}
.metric{
  padding:26px 24px;border-top:1px solid var(--line);border-left:1px solid var(--line);
  background:rgba(255,255,255,.025);
}
.metric:nth-child(1){border-left:0}
@media(max-width:639px){.metric{border-left:0}}
@media(min-width:640px) and (max-width:1023px){
  .metric:nth-child(odd){border-left:0}
}
@media(min-width:1024px){
  .metric{border-top:0}
  .metric:nth-child(1){border-left:0}
}
.metric-num{font-size:clamp(1.75rem,3.6vw,2.25rem);font-weight:800;color:var(--primary);line-height:1.1;letter-spacing:-.02em}
.metric-num small{font-size:.875rem;font-weight:600;margin-left:4px;color:var(--text-2)}
.metric-label{font-size:.9375rem;font-weight:600;margin-top:10px}
.metric-desc{font-size:.8125rem;color:var(--text-3);margin-top:6px;line-height:1.7}

/* ============ problem cards ============ */
.problem-grid{display:grid;grid-template-columns:1fr;gap:20px}
@media(min-width:900px){.problem-grid{grid-template-columns:1.05fr .95fr}}
.problem-col{display:flex;flex-direction:column;gap:20px}
.problem-col.offset{padding-top:0}
@media(min-width:900px){.problem-col.offset{padding-top:44px}}
.p-card{padding:24px;border-radius:var(--r-lg);background:rgba(255,255,255,.028);border:1px solid var(--line);position:relative;transition:border-color 240ms var(--ease),transform 240ms var(--ease)}
.p-card:hover{border-color:rgba(25,227,177,.26);transform:translateY(-3px)}
.p-q{
  width:34px;height:34px;border-radius:11px;display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:.875rem;color:#FFD9C6;
  background:rgba(255,106,43,.16);border:1px solid rgba(255,106,43,.45);
  box-shadow:0 0 20px rgba(255,106,43,.24);
  font-variant-numeric:tabular-nums;margin-bottom:16px;
}
.p-card h3{font-size:1.0625rem;font-weight:600;line-height:1.6}
.p-card p{font-size:.875rem;color:var(--text-2);margin-top:10px;line-height:1.8}

/* ============ solutions ============ */
.sol-row1{display:grid;grid-template-columns:1fr;gap:20px}
@media(min-width:1024px){.sol-row1{grid-template-columns:7fr 5fr}}
.sol-col{display:flex;flex-direction:column;gap:20px}
.sol-card{padding:26px;display:flex;flex-direction:column}
.sol-card-lg{flex-direction:column}
@media(min-width:768px){
  .sol-card-lg{flex-direction:row;gap:28px;align-items:center}
}
.sol-ico{
  width:40px;height:40px;border-radius:12px;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  background:rgba(42,169,255,.12);border:1px solid rgba(42,169,255,.28);
}
.sol-ico.mint{background:rgba(25,227,177,.12);border-color:rgba(25,227,177,.28)}
.sol-ico.acc{background:rgba(255,106,43,.12);border-color:rgba(255,106,43,.3)}
.sol-card h3{font-size:1.0625rem;font-weight:600;margin-top:16px;line-height:1.55}
.sol-card p{font-size:.875rem;color:var(--text-2);margin-top:10px;line-height:1.8}
.sol-card .btn-text{margin-top:auto;padding-top:16px;align-self:flex-start}
.sol-thumb{
  width:100%;border-radius:14px;overflow:hidden;flex-shrink:0;
  aspect-ratio:16/10;background:linear-gradient(135deg,#122036,#0A1424);
}
@media(min-width:768px){.sol-card-lg .sol-thumb{width:38%;aspect-ratio:4/3}}
.sol-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 400ms var(--ease)}
.sol-card:hover .sol-thumb img{transform:scale(1.04)}
.sol-row2{display:grid;grid-template-columns:1fr;gap:20px;margin-top:20px}
@media(min-width:768px){.sol-row2{grid-template-columns:repeat(3,1fr)}}
.sol-tag{position:absolute;top:16px;right:16px}
.sol-card{position:relative}

/* ============ data band ============ */
.band{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line);position:relative;overflow:hidden}
.band-inner{position:relative;z-index:2;display:grid;grid-template-columns:1fr;gap:36px}
@media(min-width:1024px){.band-inner{grid-template-columns:1fr 1.05fr;gap:56px;align-items:center}}
.band-nums{display:grid;grid-template-columns:1fr;gap:22px}
@media(min-width:560px){.band-nums{grid-template-columns:repeat(3,1fr)}}
.band-num{font-size:clamp(2rem,4.4vw,3.4rem);font-weight:800;line-height:1.05;color:var(--primary);letter-spacing:-.02em}
.band-num small{font-size:.9375rem;font-weight:600;color:var(--text-2);margin-left:4px}
.band-num-label{font-size:.8125rem;color:var(--text-2);margin-top:10px;line-height:1.7}
.band-scale{margin-top:30px}
.band-scale-bar{height:8px;border-radius:99px;background:rgba(255,255,255,.06);overflow:hidden;display:flex;gap:3px}
.band-scale-bar i{display:block;height:100%;border-radius:99px;background:linear-gradient(90deg,#19E3B1,#2AA9FF)}
.band-scale-cap{display:flex;justify-content:space-between;font-size:.75rem;color:var(--text-3);margin-top:10px;font-variant-numeric:tabular-nums}

/* ============ news ============ */
.news-grid{display:grid;grid-template-columns:1fr;gap:22px}
@media(min-width:768px){.news-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.news-grid{grid-template-columns:repeat(3,1fr)}}
.news-card{display:flex;flex-direction:column;overflow:hidden;border-radius:var(--r-lg)}
.news-cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:linear-gradient(135deg,#122036,#0A1424)}
.news-cover img{width:100%;height:100%;object-fit:cover;transition:transform 420ms var(--ease)}
.news-card:hover .news-cover img{transform:scale(1.05)}
.news-cat{position:absolute;left:12px;top:12px;backdrop-filter:blur(8px);background:rgba(9,14,24,.72)}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.news-body h3{font-size:1rem;font-weight:600;line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color 200ms var(--ease)}
.news-card:hover .news-body h3{color:var(--primary)}
.news-body p{font-size:.8125rem;color:var(--text-2);margin-top:10px;line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-foot{margin-top:auto;padding-top:16px;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:.75rem;color:var(--text-3);font-variant-numeric:tabular-nums}
.news-foot .arw{color:var(--primary);transition:transform 200ms var(--ease)}
.news-card:hover .news-foot .arw{transform:translateX(4px)}
.empty-state{padding:56px 24px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:14px}
.empty-state h3{font-size:1rem;font-weight:600}
.empty-state p{font-size:.875rem;color:var(--text-2)}

/* ============ faq ============ */
.faq-wrap{display:flex;flex-direction:column;gap:12px}
.faq-item{border:1px solid var(--line);border-radius:var(--r-md);background:var(--bg-1);overflow:hidden;transition:border-color 240ms var(--ease)}
.faq-item.open{border-color:rgba(25,227,177,.3)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;background:none;border:0;cursor:pointer;text-align:left;
  font-size:1rem;font-weight:600;line-height:1.6;color:var(--text-1);
  transition:color 200ms var(--ease);
}
.faq-q:hover{color:var(--primary)}
.faq-sign{
  width:26px;height:26px;flex-shrink:0;border-radius:8px;position:relative;
  border:1px solid rgba(25,227,177,.35);background:rgba(25,227,177,.08);
  transition:transform 200ms var(--ease);
}
.faq-sign::before,.faq-sign::after{content:'';position:absolute;left:50%;top:50%;background:var(--primary);border-radius:2px;transform:translate(-50%,-50%)}
.faq-sign::before{width:12px;height:2px}
.faq-sign::after{width:2px;height:12px;transition:opacity 200ms var(--ease)}
.faq-item.open .faq-sign::after{opacity:0}
.faq-item.open .faq-sign{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 260ms var(--ease)}
.faq-a-inner{padding:0 22px 22px 22px;border-left:3px solid var(--primary);margin-left:22px;padding-left:18px;color:var(--text-2);font-size:.9375rem;line-height:1.85}

/* ============ form ============ */
.convert{display:grid;grid-template-columns:1fr;gap:32px}
@media(min-width:1024px){.convert{grid-template-columns:5fr 7fr;gap:48px;align-items:start}}
.convert-points{display:flex;flex-direction:column;gap:18px;margin-top:26px}
.convert-point{display:flex;gap:14px}
.convert-point .num{
  width:30px;height:30px;flex-shrink:0;border-radius:9px;display:flex;align-items:center;justify-content:center;
  font-size:.8125rem;font-weight:700;color:var(--primary);
  background:rgba(25,227,177,.1);border:1px solid rgba(25,227,177,.28);
  font-variant-numeric:tabular-nums;
}
.convert-point h3{font-size:.9375rem;font-weight:600}
.convert-point p{font-size:.875rem;color:var(--text-2);margin-top:6px;line-height:1.8}
.form-card{padding:28px 26px}
@media(min-width:1024px){.form-card{padding:34px 32px}}
.form-card-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;flex-wrap:wrap}
.form-card-head h3{font-size:1.125rem;font-weight:700}
.form-card-head p{font-size:.8125rem;color:var(--text-3);margin-top:6px}
.field{margin-top:18px}
.field label{display:block;font-size:.8125rem;color:var(--text-2);margin-bottom:8px}
.field label i{font-style:normal;color:var(--accent)}
.field input,.field select,.field textarea{
  width:100%;height:48px;padding:0 14px;border-radius:12px;
  background:var(--bg-2);border:1px solid var(--line);color:var(--text-1);
  transition:border-color 200ms var(--ease),box-shadow 200ms var(--ease);
  appearance:none;
}
.field textarea{height:104px;padding:12px 14px;resize:vertical;line-height:1.7}
.field select{background-image:linear-gradient(45deg,transparent 50%,var(--text-3) 50%),linear-gradient(135deg,var(--text-3) 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 15px) 21px;background-size:5px 5px,5px 5px;background-repeat:no-repeat}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3)}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--primary);box-shadow:0 0 0 4px rgba(25,227,177,.12);
}
.field.error input,.field.error select,.field.error textarea{border-color:var(--danger);box-shadow:0 0 0 4px rgba(255,77,94,.1)}
.field-err{font-size:.75rem;color:var(--danger);margin-top:6px;display:none}
.field.error .field-err{display:block}
.checkline{display:flex;align-items:flex-start;gap:10px;margin-top:22px;font-size:.8125rem;color:var(--text-2);line-height:1.7}
.checkline input{width:18px;height:18px;margin-top:4px;accent-color:#19E3B1;flex-shrink:0}
.checkline a{color:var(--primary-2);text-decoration:underline;text-underline-offset:3px}
.form-submit{margin-top:20px;width:100%}
.form-tip{font-size:.75rem;color:var(--text-3);margin-top:12px;line-height:1.7}

/* ============ privacy ============ */
.privacy-grid{display:grid;grid-template-columns:1fr;gap:20px}
@media(min-width:768px){.privacy-grid{grid-template-columns:repeat(3,1fr)}}
.privacy-card{padding:24px}
.privacy-card h3{font-size:1rem;font-weight:600;margin-top:14px}
.privacy-card p{font-size:.875rem;color:var(--text-2);margin-top:10px;line-height:1.8}
.privacy-foot{margin-top:24px;display:flex;align-items:center;gap:14px;flex-wrap:wrap;font-size:.8125rem;color:var(--text-3)}

/* ============ cta strip ============ */
.cta-strip{padding:32px 28px;display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}
.cta-strip h2{font-size:clamp(1.25rem,2.6vw,1.625rem);font-weight:700;line-height:1.4}
.cta-strip p{font-size:.875rem;color:var(--text-2);margin-top:8px}

/* ============ footer ============ */
.site-footer{background:#04070D;border-top:1px solid var(--line);padding:56px 0 28px;margin-top:8px}
.foot-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media(min-width:640px){.foot-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.foot-grid{grid-template-columns:1.4fr 1fr 1fr 1fr}}
.foot-brand{display:flex;align-items:center;gap:10px}
.foot-brand strong{font-size:1.0625rem;font-weight:800;color:#fff}
.foot-desc{font-size:.8125rem;color:var(--text-3);line-height:1.8;margin-top:16px;max-width:34em}
.foot-col h3{font-size:.8125rem;font-weight:700;letter-spacing:.1em;color:var(--text-1);margin-bottom:16px}
.foot-list{display:flex;flex-direction:column;gap:10px}
.foot-list a,.foot-list span{font-size:.8125rem;color:var(--text-3);transition:color 200ms var(--ease)}
.foot-list a:hover{color:var(--primary)}
.foot-bottom{margin-top:44px;padding-top:22px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:.75rem;color:var(--text-3)}
.foot-bottom .links{display:flex;gap:18px;flex-wrap:wrap}
.foot-bottom .links a:hover{color:var(--primary)}

/* ============ modal ============ */
.modal-overlay{
  position:fixed;inset:0;z-index:120;display:flex;align-items:center;justify-content:center;
  padding:16px;background:rgba(3,6,12,.72);backdrop-filter:blur(6px);
  opacity:0;visibility:hidden;transition:opacity 240ms var(--ease),visibility 240ms;
}
.modal-overlay.show{opacity:1;visibility:visible}
.modal-card{
  width:100%;max-width:520px;max-height:90vh;overflow-y:auto;padding:26px 24px;
  transform:translateY(14px);transition:transform 260ms var(--ease);
}
.modal-overlay.show .modal-card{transform:translateY(0)}
.modal-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px}
.modal-head h3{font-size:1.125rem;font-weight:700}
.modal-head p{font-size:.8125rem;color:var(--text-3);margin-top:6px}
.modal-close{
  width:44px;height:44px;flex-shrink:0;border-radius:12px;border:1px solid var(--line);
  background:rgba(255,255,255,.04);cursor:pointer;display:flex;align-items:center;justify-content:center;
  transition:background 200ms var(--ease),border-color 200ms var(--ease);
}
.modal-close:hover{background:rgba(255,255,255,.09);border-color:rgba(255,255,255,.18)}
.modal-success{display:none;flex-direction:column;align-items:center;text-align:center;gap:12px;padding:26px 0 8px}
.modal-success.show{display:flex}
.modal-success h4{font-size:1.0625rem;font-weight:700}
.modal-success p{font-size:.875rem;color:var(--text-2);line-height:1.8}
.check-ring{
  width:58px;height:58px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  background:rgba(25,227,177,.12);border:1px solid rgba(25,227,177,.4);
  box-shadow:0 0 34px rgba(25,227,177,.28);
}

/* reveal */
.reveal{opacity:0;transform:translateY(8px);transition:opacity 600ms var(--ease),transform 600ms var(--ease)}
.reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
}

/* roulang page: category1 */
:root{
  --bg-0:#060A12;
  --bg-1:#0B1220;
  --bg-2:#101A2B;
  --primary:#19E3B1;
  --primary-2:#2AA9FF;
  --accent:#FF6A2B;
  --text-1:#E8F0FA;
  --text-2:#A6B6CC;
  --text-3:#6C7C93;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --danger:#FF4D5E;
  --r-lg:18px;
  --r-md:14px;
  --r-sm:12px;
  --r-pill:999px;
  --sh-card:0 18px 50px rgba(0,0,0,.45);
  --sh-hover:0 22px 62px rgba(0,0,0,.55);
  --glow:0 0 32px rgba(25,227,177,.18);
  --ease:cubic-bezier(.4,0,.2,1);
  --font-cn:'PingFang SC','HarmonyOS Sans','Microsoft YaHei',system-ui,'Inter',sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  padding-top:72px;
  background:
    radial-gradient(900px 520px at 12% -8%, rgba(25,227,177,.10), transparent 62%),
    radial-gradient(760px 460px at 92% 4%, rgba(42,169,255,.09), transparent 60%),
    var(--bg-0);
  color:var(--text-1);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4{margin:0;line-height:1.28;color:var(--text-1)}
h1{font-weight:800;letter-spacing:-.02em;font-size:clamp(2rem,5.2vw,3.4rem)}
h2{font-weight:700;font-size:clamp(1.5rem,3.2vw,2.25rem);letter-spacing:-.01em}
h3{font-weight:600;font-size:1.125rem}
p{margin:0;max-width:68ch}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input,select,textarea{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}

.wrap{max-width:1200px;margin:0 auto;padding:0 20px}
.num{font-variant-numeric:tabular-nums;font-family:Inter,var(--font-cn)}

/* ============ 顶部导航 ============ */
.site-header{
  position:fixed;inset:0 0 auto 0;z-index:80;
  background:rgba(6,10,18,.62);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid transparent;
  transition:background 260ms var(--ease),border-color 260ms var(--ease);
}
.site-header.is-scrolled{background:rgba(6,10,18,.92);border-bottom-color:var(--line)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:72px}
.brand{display:flex;align-items:center;gap:12px;min-height:44px}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:12px;
  background:linear-gradient(135deg,var(--primary),#0FAE8A);
  display:grid;place-items:center;
  box-shadow:0 8px 22px rgba(25,227,177,.28);
}
.brand-mark svg{width:22px;height:22px}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:1rem;font-weight:700;letter-spacing:.01em}
.brand-text em{font-style:normal;font-size:.75rem;color:var(--text-3);letter-spacing:.06em}
.nav-desktop{display:flex;align-items:center;gap:4px}
.nav-link{
  padding:9px 14px;border-radius:var(--r-pill);font-size:.9375rem;color:var(--text-2);
  border:1px solid transparent;transition:all 220ms var(--ease);white-space:nowrap;
}
.nav-link:hover{color:var(--text-1);background:rgba(255,255,255,.05)}
.nav-link.active{
  color:var(--primary);background:rgba(25,227,177,.12);border-color:rgba(25,227,177,.35);
}
.header-right{display:flex;align-items:center;gap:12px}
.hamburger{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:rgba(255,255,255,.04);align-items:center;justify-content:center;cursor:pointer;
}
.hamburger span{display:block;width:18px;height:2px;background:var(--text-1);position:relative;border-radius:2px}
.hamburger span::before,.hamburger span::after{
  content:'';position:absolute;left:0;width:18px;height:2px;background:var(--text-1);border-radius:2px;transition:.24s var(--ease)
}
.hamburger span::before{top:-6px}
.hamburger span::after{top:6px}
.hamburger[aria-expanded="true"] span{background:transparent}
.hamburger[aria-expanded="true"] span::before{transform:translateY(6px) rotate(45deg)}
.hamburger[aria-expanded="true"] span::after{transform:translateY(-6px) rotate(-45deg)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:12px 26px;border-radius:var(--r-pill);
  font-weight:600;font-size:.9375rem;letter-spacing:.02em;cursor:pointer;
  border:1px solid transparent;transition:all 240ms var(--ease);
}
.btn-primary{
  background:linear-gradient(120deg,#FF7A3D,#FF4D2E);color:#0A0F18;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.25),0 10px 30px rgba(255,90,40,.35);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:inset 0 1px 0 rgba(255,255,255,.25),0 14px 42px rgba(255,90,40,.5)}
.btn-primary:active{transform:translateY(-1px);box-shadow:inset 0 1px 0 rgba(255,255,255,.2),0 8px 20px rgba(255,90,40,.3)}
.btn-outline{
  background:rgba(255,255,255,.05);border-color:rgba(25,227,177,.4);color:var(--primary);
  backdrop-filter:blur(10px);
}
.btn-outline:hover{background:rgba(25,227,177,.12);transform:translateY(-2px)}
.btn-ghost{background:transparent;color:var(--text-2);padding:12px 8px}
.btn-ghost:hover{color:var(--primary)}
.btn-ghost .arrow{transition:transform 220ms var(--ease)}
.btn-ghost:hover .arrow{transform:translateX(4px)}
.btn-sm{min-height:40px;padding:9px 20px;font-size:.875rem}
.btn-block{width:100%}

/* ============ 移动抽屉 ============ */
.drawer-mask{
  position:fixed;inset:0;background:rgba(3,6,12,.7);opacity:0;visibility:hidden;
  transition:opacity 240ms var(--ease),visibility 240ms var(--ease);z-index:90;
}
.drawer-mask.open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:84vw;max-width:360px;z-index:91;
  background:rgba(11,18,32,.96);backdrop-filter:blur(16px) saturate(140%);
  border-left:1px solid var(--line);transform:translateX(100%);
  transition:transform 280ms var(--ease);padding:24px 22px;overflow-y:auto;
}
.drawer.open{transform:translateX(0)}
.drawer h2{font-size:1rem;color:var(--text-2);font-weight:600;letter-spacing:.06em;margin-bottom:14px}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:20px}
.drawer-nav a{
  padding:13px 14px;border-radius:var(--r-md);color:var(--text-2);font-size:.9375rem;
  border:1px solid transparent;opacity:0;transform:translateY(6px);
}
.drawer.open .drawer-nav a{animation:fadeUp 360ms var(--ease) forwards}
.drawer.open .drawer-nav a:nth-child(1){animation-delay:.04s}
.drawer.open .drawer-nav a:nth-child(2){animation-delay:.08s}
.drawer.open .drawer-nav a:nth-child(3){animation-delay:.12s}
.drawer.open .drawer-nav a:nth-child(4){animation-delay:.16s}
.drawer.open .drawer-nav a:nth-child(5){animation-delay:.2s}
.drawer.open .drawer-nav a:nth-child(6){animation-delay:.24s}
.drawer-nav a:hover{background:rgba(255,255,255,.05);color:var(--text-1)}
.drawer-nav a.active{color:var(--primary);background:rgba(25,227,177,.12);border-color:rgba(25,227,177,.3)}
.drawer-divider{height:1px;background:var(--line);margin:18px 0}
.drawer-note{font-size:.8125rem;color:var(--text-3);line-height:1.7;max-width:100%}
@keyframes fadeUp{to{opacity:1;transform:translateY(0)}}

/* ============ 面包屑 ============ */
.crumb-bar{border-bottom:1px solid var(--line);background:rgba(11,18,32,.5)}
.crumb{display:flex;align-items:center;gap:10px;font-size:.875rem;color:var(--text-3);padding:16px 0;flex-wrap:wrap}
.crumb a:hover{color:var(--primary)}
.crumb .sep{color:var(--text-3);opacity:.6}
.crumb .current{color:var(--text-2);max-width:60vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;border-bottom:1px solid var(--line);
  background-image:linear-gradient(180deg,rgba(6,10,18,.62),rgba(6,10,18,.94)),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
}
.hero::after{
  content:'';position:absolute;right:-120px;bottom:-140px;width:520px;height:520px;border-radius:50%;
  border:1px solid rgba(25,227,177,.16);pointer-events:none;
}
.hero-inner{
  position:relative;z-index:2;display:grid;grid-template-columns:1.15fr .85fr;gap:48px;
  align-items:center;padding:84px 0 76px;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:7px 16px;border-radius:var(--r-pill);
  border:1px solid rgba(25,227,177,.35);background:rgba(25,227,177,.1);
  color:var(--primary);font-size:.75rem;letter-spacing:.08em;margin-bottom:20px;
}
.eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px rgba(25,227,177,.9);animation:breathe 2.8s ease-in-out infinite}
@keyframes breathe{0%,100%{opacity:.55}50%{opacity:1}}
.hero h1{margin-bottom:18px}
.hero h1 .hl{color:var(--primary)}
.hero-lead{color:var(--text-2);font-size:1.0625rem;max-width:60ch;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:20px}
.hero-trust{display:flex;flex-wrap:wrap;gap:18px;font-size:.8125rem;color:var(--text-3)}
.hero-trust span{display:inline-flex;align-items:center;gap:7px;max-width:100%}
.hero-trust i{width:6px;height:6px;border-radius:50%;background:var(--accent);display:inline-block;flex:0 0 6px}
.hero-figure{
  background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  border:1px solid rgba(255,255,255,.1);border-radius:var(--r-lg);
  padding:14px;box-shadow:var(--sh-card);backdrop-filter:blur(14px) saturate(140%);
}
.hero-figure .frame{border-radius:var(--r-sm);overflow:hidden;aspect-ratio:16/9;background:var(--bg-2);position:relative}
.hero-figure .frame img{width:100%;height:100%;object-fit:cover}
.hero-figure .meta{padding:16px 8px 6px;display:flex;flex-direction:column;gap:10px}
.hero-figure .meta strong{font-size:.9375rem;font-weight:600}
.hero-figure .meta p{font-size:.8125rem;color:var(--text-3);line-height:1.7}
.hero-figure .meta ul{display:flex;flex-direction:column;gap:8px;margin-top:4px}
.hero-figure .meta li{display:flex;gap:10px;align-items:flex-start;font-size:.8125rem;color:var(--text-2)}
.hero-figure .meta li b{color:var(--primary);font-weight:600;flex:0 0 auto}

/* ============ 通用板块 ============ */
.section{padding:96px 0;position:relative}
.section.alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section.grid-bg{
  background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:32px 32px;
}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px;flex-wrap:wrap}
.section-head .text{max-width:62ch}
.section-sub{color:var(--text-2);margin-top:14px;font-size:1rem;max-width:64ch}
.tag{
  display:inline-block;padding:4px 12px;border-radius:var(--r-pill);border:1px solid var(--line-strong);
  font-size:.75rem;letter-spacing:.04em;color:var(--text-2);margin-bottom:14px;
}
.tag.primary{border-color:rgba(25,227,177,.35);color:var(--primary);background:rgba(25,227,177,.08)}

/* ============ 步骤流 ============ */
.steps-layout{display:grid;grid-template-columns:300px 1fr;gap:48px;align-items:start}
.steps-index{position:sticky;top:104px;background:rgba(11,18,32,.72);border:1px solid var(--line);border-radius:var(--r-lg);padding:24px}
.steps-index h3{font-size:.8125rem;color:var(--text-3);letter-spacing:.1em;font-weight:600;margin-bottom:16px}
.steps-index ol{display:flex;flex-direction:column;gap:6px}
.steps-index a{
  display:flex;gap:12px;align-items:center;padding:11px 12px;border-radius:var(--r-md);
  color:var(--text-2);font-size:.875rem;border:1px solid transparent;transition:all 220ms var(--ease);
}
.steps-index a .n{font-variant-numeric:tabular-nums;color:var(--text-3);font-weight:600;font-size:.8125rem}
.steps-index a:hover{background:rgba(255,255,255,.05);color:var(--text-1)}
.steps-index a.active{background:rgba(25,227,177,.12);border-color:rgba(25,227,177,.35);color:var(--primary)}
.steps-index a.active .n{color:var(--primary)}
.steps-index .foot-note{margin-top:18px;padding-top:16px;border-top:1px solid var(--line);font-size:.8125rem;color:var(--text-3);line-height:1.7;max-width:100%}

.steps-list{position:relative;padding-left:52px;display:flex;flex-direction:column;gap:26px}
.steps-list::before{
  content:'';position:absolute;left:17px;top:22px;bottom:22px;border-left:1px dashed rgba(255,255,255,.18);
}
.step-card{
  position:relative;background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  border:1px solid rgba(255,255,255,.1);border-radius:var(--r-lg);padding:26px 26px 24px;
  backdrop-filter:blur(14px) saturate(140%);box-shadow:var(--sh-card);transition:all 240ms var(--ease);
}
.step-card:hover{border-color:rgba(25,227,177,.35);transform:translateY(-4px);box-shadow:var(--sh-hover),var(--glow)}
.step-dot{
  position:absolute;left:-52px;top:26px;width:36px;height:36px;border-radius:50%;
  display:grid;place-items:center;font-size:.8125rem;font-weight:700;color:#0A0F18;
  background:linear-gradient(135deg,#FF8A50,var(--accent));
  box-shadow:0 0 0 5px rgba(6,10,18,1),0 0 22px rgba(255,106,43,.6);
  font-variant-numeric:tabular-nums;
}
.step-card h3{margin-bottom:12px;display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.step-card h3 .lbl{font-size:.75rem;color:var(--text-3);border:1px solid var(--line-strong);border-radius:var(--r-pill);padding:2px 10px;letter-spacing:.04em}
.step-card p{color:var(--text-2);font-size:.9375rem;margin-bottom:14px}
.step-tip{
  display:flex;gap:10px;align-items:flex-start;background:var(--bg-2);border:1px solid var(--line);
  border-left:3px solid var(--primary);border-radius:var(--r-sm);padding:12px 14px;
}
.step-tip b{color:var(--primary);font-size:.8125rem;font-weight:600;flex:0 0 auto}
.step-tip span{font-size:.8125rem;color:var(--text-2);line-height:1.7}
.step-list-sm{margin:0 0 14px;display:flex;flex-direction:column;gap:7px}
.step-list-sm li{display:flex;gap:9px;font-size:.875rem;color:var(--text-2)}
.step-list-sm li::before{content:'';width:5px;height:5px;border-radius:50%;background:var(--primary-2);margin-top:11px;flex:0 0 5px}

/* ============ 对照小结 ============ */
.summary-card{background:var(--bg-1);border:1px solid var(--line);border-radius:var(--r-lg);padding:8px;overflow:hidden}
.summary-head{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:20px 20px 16px;flex-wrap:wrap}
.summary-head h3{font-size:1.0625rem}
.summary-head span{font-size:.8125rem;color:var(--text-3)}
.summary-table{width:100%;border-collapse:collapse;font-size:.9375rem}
.summary-table th,.summary-table td{text-align:left;padding:15px 20px;border-bottom:1px solid var(--line)}
.summary-table thead th{background:var(--bg-2);color:var(--text-2);font-weight:600;font-size:.8125rem;letter-spacing:.06em;border-bottom:1px solid var(--line-strong)}
.summary-table tbody tr{transition:background 200ms var(--ease)}
.summary-table tbody tr:hover{background:rgba(25,227,177,.05)}
.summary-table tbody tr:last-child td{border-bottom:none}
.summary-table td:first-child{color:var(--text-1);font-weight:600;white-space:nowrap}
.summary-table td{color:var(--text-2)}
.summary-table .ok{color:var(--primary);white-space:nowrap}

/* ============ 排查卡片 ============ */
.check-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.check-card{
  background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  border:1px solid rgba(255,255,255,.1);border-radius:var(--r-lg);padding:24px;
  backdrop-filter:blur(14px) saturate(140%);box-shadow:var(--sh-card);transition:all 240ms var(--ease);
}
.check-card:hover{border-color:rgba(25,227,177,.35);transform:translateY(-4px);box-shadow:var(--sh-hover),var(--glow)}
.check-card .ico{
  width:42px;height:42px;border-radius:var(--r-sm);display:grid;place-items:center;margin-bottom:16px;
  background:rgba(42,169,255,.12);border:1px solid rgba(42,169,255,.3);color:var(--primary-2);
}
.check-card .ico svg{width:20px;height:20px}
.check-card h3{font-size:1rem;margin-bottom:10px}
.check-card p{font-size:.875rem;color:var(--text-2);line-height:1.75;max-width:100%}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:920px}
.faq-item{
  background:var(--bg-1);border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;
  transition:border-color 240ms var(--ease),background 240ms var(--ease);
}
.faq-item.open{border-color:rgba(25,227,177,.35)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 22px;background:transparent;border:none;cursor:pointer;text-align:left;
  font-size:1rem;font-weight:600;color:var(--text-1);min-height:44px;position:relative;
}
.faq-q::before{content:'';position:absolute;left:0;top:12px;bottom:12px;width:3px;background:var(--primary);opacity:0;transition:opacity 240ms var(--ease);border-radius:0 3px 3px 0}
.faq-item.open .faq-q::before{opacity:1}
.faq-q:hover{color:var(--primary)}
.faq-icon{
  flex:0 0 26px;width:26px;height:26px;border-radius:50%;border:1px solid var(--line-strong);
  display:grid;place-items:center;font-size:1rem;line-height:1;color:var(--text-2);
  transition:transform 220ms var(--ease),color 220ms var(--ease),border-color 220ms var(--ease);
}
.faq-item.open .faq-icon{transform:rotate(180deg);color:var(--primary);border-color:rgba(25,227,177,.45)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 260ms var(--ease)}
.faq-a p{padding:0 22px 22px;color:var(--text-2);font-size:.9375rem;line-height:1.8;max-width:100%}

/* ============ 内链胶囊 ============ */
.link-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.link-pill{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:22px 24px;border-radius:var(--r-pill);border:1px solid var(--line-strong);
  background:rgba(255,255,255,.04);transition:all 240ms var(--ease);min-height:44px;
}
.link-pill:hover{border-color:rgba(25,227,177,.45);background:rgba(25,227,177,.09);transform:translateY(-3px)}
.link-pill .t{display:flex;flex-direction:column;gap:4px;min-width:0}
.link-pill strong{font-size:1rem;font-weight:600}
.link-pill span{font-size:.8125rem;color:var(--text-3)}
.link-pill .arrow{color:var(--primary);transition:transform 220ms var(--ease);flex:0 0 auto}
.link-pill:hover .arrow{transform:translateX(4px)}

/* ============ CTA 与表单 ============ */
.cta-band{
  background:
    radial-gradient(700px 340px at 88% 10%, rgba(255,106,43,.14), transparent 62%),
    var(--bg-1);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.cta-grid{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:start}
.cta-points{display:flex;flex-direction:column;gap:16px;margin:26px 0 20px}
.cta-points li{display:flex;gap:12px;align-items:flex-start;font-size:.9375rem;color:var(--text-2);max-width:100%}
.cta-points li .dot{width:8px;height:8px;border-radius:50%;background:var(--primary);margin-top:11px;flex:0 0 8px;box-shadow:0 0 12px rgba(25,227,177,.7)}
.form-card{
  position:relative;background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  border:1px solid rgba(255,255,255,.1);border-radius:var(--r-lg);padding:28px;
  backdrop-filter:blur(14px) saturate(140%);box-shadow:var(--sh-card);
}
.form-card .pop-trigger{
  position:absolute;right:20px;top:20px;font-size:.8125rem;color:var(--primary);
  border:1px solid rgba(25,227,177,.4);border-radius:var(--r-pill);padding:7px 14px;background:rgba(25,227,177,.08);
  transition:all 220ms var(--ease);cursor:pointer;min-height:36px;
}
.form-card .pop-trigger:hover{background:rgba(25,227,177,.16)}
.form-card h3{margin-bottom:8px}
.form-card > p.hint{font-size:.875rem;color:var(--text-3);margin-bottom:22px;max-width:100%}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{display:flex;flex-direction:column;gap:8px}
.field.full{grid-column:1 / -1}
.field label{font-size:.875rem;color:var(--text-2)}
.field input,.field select,.field textarea{
  width:100%;min-height:48px;padding:12px 14px;border-radius:var(--r-sm);
  background:var(--bg-2);border:1px solid var(--line);color:var(--text-1);
  transition:border-color 200ms var(--ease),box-shadow 200ms var(--ease);
}
.field textarea{min-height:110px;resize:vertical;line-height:1.7}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--text-3) 50%),linear-gradient(135deg,var(--text-3) 50%,transparent 50%);background-position:calc(100% - 20px) 22px,calc(100% - 14px) 22px;background-size:6px 6px,6px 6px;background-repeat:no-repeat}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3)}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--primary);box-shadow:0 0 0 4px rgba(25,227,177,.12);
}
.field.error input,.field.error select,.field.error textarea{border-color:var(--danger);box-shadow:0 0 0 4px rgba(255,77,94,.12)}
.field .err{font-size:.8125rem;color:var(--danger);display:none}
.field.error .err{display:block}
.check-row{display:flex;align-items:flex-start;gap:12px;margin:20px 0 18px;font-size:.875rem;color:var(--text-2)}
.check-row input{width:18px;height:18px;margin-top:5px;accent-color:var(--primary);flex:0 0 18px}
.check-row a{color:var(--primary);border-bottom:1px dashed rgba(25,227,177,.5)}
.form-note{font-size:.8125rem;color:var(--text-3);margin-top:14px;max-width:100%}
.form-ok{display:none;align-items:center;gap:12px;margin-top:16px;font-size:.9375rem;color:var(--primary)}
.form-ok.show{display:flex}

/* ============ 弹层 ============ */
.modal-mask{
  position:fixed;inset:0;background:rgba(3,6,12,.72);backdrop-filter:blur(6px);
  display:flex;align-items:center;justify-content:center;padding:16px;z-index:120;
  opacity:0;visibility:hidden;transition:opacity 240ms var(--ease),visibility 240ms var(--ease);
}
.modal-mask.open{opacity:1;visibility:visible}
.modal-card{
  width:100%;max-width:520px;max-height:88vh;overflow-y:auto;position:relative;
  background:linear-gradient(160deg,rgba(255,255,255,.08),rgba(255,255,255,.02)),var(--bg-1);
  border:1px solid rgba(255,255,255,.12);border-radius:var(--r-lg);padding:28px;
  box-shadow:0 30px 90px rgba(0,0,0,.6);transform:translateY(10px);transition:transform 260ms var(--ease);
}
.modal-mask.open .modal-card{transform:translateY(0)}
.modal-card h3{margin-bottom:8px;padding-right:52px}
.modal-close{
  position:absolute;right:14px;top:14px;width:44px;height:44px;border-radius:12px;
  background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--text-2);cursor:pointer;
  display:grid;place-items:center;font-size:1.125rem;transition:all 200ms var(--ease);
}
.modal-close:hover{color:var(--primary);border-color:rgba(25,227,177,.4)}
.modal-ok{display:none;flex-direction:column;align-items:center;text-align:center;gap:14px;padding:22px 0 6px}
.modal-ok.show{display:flex}
.modal-ok .tick{
  width:64px;height:64px;border-radius:50%;display:grid;place-items:center;
  background:rgba(25,227,177,.12);border:1px solid rgba(25,227,177,.45);color:var(--primary);font-size:1.75rem;
}

/* ============ 页脚 ============ */
.site-footer{background:#050810;border-top:1px solid var(--line);padding:72px 0 28px;margin-top:0}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;margin-bottom:44px}
.foot-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.foot-brand strong{font-size:1rem;font-weight:700}
.foot-desc{font-size:.875rem;color:var(--text-3);line-height:1.8;max-width:38ch}
.foot-col h3{font-size:.875rem;color:var(--text-1);letter-spacing:.06em;margin-bottom:16px;font-weight:600}
.foot-list{display:flex;flex-direction:column;gap:11px}
.foot-list a,.foot-list span{font-size:.875rem;color:var(--text-3);transition:color 200ms var(--ease)}
.foot-list a:hover{color:var(--primary)}
.foot-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  padding-top:24px;border-top:1px solid var(--line);font-size:.8125rem;color:var(--text-3);
}
.foot-bottom .links{display:flex;gap:20px;flex-wrap:wrap}
.foot-bottom .links a:hover{color:var(--primary)}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(8px);transition:opacity 620ms var(--ease),transform 620ms var(--ease)}
.reveal.visible{opacity:1;transform:translateY(0)}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* ============ 响应式 ============ */
@media (max-width:1100px){
  .nav-desktop .nav-link{padding:8px 10px;font-size:.875rem}
  .steps-layout{grid-template-columns:250px 1fr;gap:32px}
}
@media (max-width:1024px){
  .nav-desktop{display:none}
  .hamburger{display:flex}
  .hero-inner{grid-template-columns:1fr;gap:34px;padding:64px 0 60px}
  .check-grid{grid-template-columns:repeat(2,1fr)}
  .cta-grid{grid-template-columns:1fr;gap:34px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px}
  .link-grid{grid-template-columns:1fr}
}
@media (max-width:768px){
  body{padding-top:60px}
  .header-inner{height:60px}
  .section{padding:64px 0}
  .section-head{margin-bottom:30px}
  .steps-layout{grid-template-columns:1fr;gap:26px}
  .steps-index{position:static;padding:18px}
  .steps-index ol{flex-direction:row;flex-wrap:wrap;gap:8px}
  .steps-index a{padding:8px 12px;font-size:.8125rem}
  .steps-index .foot-note{display:none}
  .steps-list{padding-left:44px}
  .steps-list::before{left:14px}
  .step-dot{left:-44px;width:30px;height:30px;font-size:.75rem;top:24px}
  .form-grid{grid-template-columns:1fr}
  .summary-table th,.summary-table td{padding:12px 14px}
  .summary-table{font-size:.875rem}
}
@media (max-width:520px){
  .wrap{padding:0 16px}
  .hero h1{font-size:1.85rem}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .check-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .steps-list{padding-left:0}
  .steps-list::before{display:none}
  .step-dot{position:static;left:auto;top:auto;margin-bottom:14px;box-shadow:none}
  .summary-table thead{display:none}
  .summary-table tbody tr{display:block;border-bottom:1px solid var(--line);padding:12px 4px}
  .summary-table tbody td{display:block;border:none;padding:4px 14px}
  .summary-table td:first-child{color:var(--primary);font-size:.8125rem}
  .crumb .current{max-width:44vw}
  .form-card{padding:22px 18px}
  .form-card .pop-trigger{position:static;display:inline-flex;margin-bottom:14px}
}

/* roulang page: article */
:root{
  --bg-0:#060A12;
  --bg-1:#0B1220;
  --bg-2:#101A2B;
  --primary:#19E3B1;
  --primary-2:#2AA9FF;
  --accent:#FF6A2B;
  --text-1:#E8F0FA;
  --text-2:#A6B6CC;
  --text-3:#6C7C93;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --error:#FF4D5E;
  --radius-lg:18px;
  --radius-md:14px;
  --radius-sm:12px;
  --shadow-card:0 18px 50px rgba(0,0,0,.45);
  --shadow-hover:0 24px 60px rgba(0,0,0,.55), 0 0 32px rgba(25,227,177,.18);
  --ease:cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{box-sizing:border-box;}
[hidden]{display:none !important;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-1);
  font-family:Inter,"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:32px 32px;
  pointer-events:none;
  z-index:0;
}
img{max-width:100%;display:block;border-radius:var(--radius-sm);}
a{color:inherit;text-decoration:none;}
a.text-link{color:var(--primary-2);}
a.text-link:hover{color:var(--primary);}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
ul,ol{margin:0;padding:0;}
h1,h2,h3,h4{margin:0;letter-spacing:-.01em;line-height:1.3;}
p{margin:0;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px;}
::selection{background:rgba(25,227,177,.3);}
::-webkit-scrollbar{width:10px;height:10px;}
::-webkit-scrollbar-track{background:var(--bg-0);}
::-webkit-scrollbar-thumb{background:rgba(255,255,255,.14);border-radius:999px;}
::-webkit-scrollbar-thumb:hover{background:rgba(25,227,177,.4);}

.wrap{max-width:1200px;margin:0 auto;padding:0 20px;position:relative;z-index:1;}
@media(min-width:768px){.wrap{padding:0 32px;}}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:90;
  background:rgba(6,10,18,.62);
  backdrop-filter:blur(14px) saturate(140%);
  transition:background .3s var(--ease), border-color .3s var(--ease);
  border-bottom:1px solid transparent;
}
.site-header.is-scrolled{background:rgba(6,10,18,.92);border-bottom-color:var(--line);}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:60px;}
@media(min-width:768px){.header-inner{height:72px;gap:24px;}}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:36px;height:36px;border-radius:11px;flex-shrink:0;
  display:grid;place-items:center;
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  box-shadow:0 8px 20px rgba(25,227,177,.28);
}
.brand-mark svg{width:20px;height:20px;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-size:1rem;font-weight:800;letter-spacing:-.01em;}
.brand-text em{font-style:normal;font-size:.6875rem;color:var(--text-3);letter-spacing:.12em;}
@media(max-width:400px){.brand-text em{display:none;}}

.nav-desktop{display:none;align-items:center;gap:2px;padding:4px;border-radius:999px;background:rgba(255,255,255,.04);border:1px solid var(--line);}
@media(min-width:1100px){.nav-desktop{display:flex;}}
.nav-link{
  display:inline-flex;align-items:center;height:36px;padding:0 13px;border-radius:999px;
  font-size:.8125rem;color:var(--text-2);white-space:nowrap;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-link:hover{color:var(--text-1);background:rgba(255,255,255,.06);}
.nav-link.active{color:var(--primary);background:rgba(25,227,177,.12);box-shadow:inset 0 0 0 1px rgba(25,227,177,.35);}

.header-right{display:flex;align-items:center;gap:10px;}
.hamburger{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  border:1px solid var(--line);background:rgba(255,255,255,.04);
}
@media(min-width:1100px){.hamburger{display:none;}}
.hamburger span{position:relative;display:block;width:18px;height:2px;border-radius:2px;background:var(--text-1);transition:transform .24s var(--ease),background .24s var(--ease);}
.hamburger span::before,.hamburger span::after{content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--text-1);transition:transform .24s var(--ease),opacity .2s var(--ease);}
.hamburger span::before{top:-6px;}
.hamburger span::after{top:6px;}
.hamburger.is-open span{background:transparent;}
.hamburger.is-open span::before{transform:translateY(6px) rotate(45deg);}
.hamburger.is-open span::after{transform:translateY(-6px) rotate(-45deg);}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;font-weight:600;letter-spacing:.02em;
  padding:0 22px;height:48px;font-size:.9375rem;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease);
  border:1px solid transparent;cursor:pointer;text-align:center;
}
.btn-sm{height:40px;padding:0 18px;font-size:.8125rem;}
.btn-lg{height:54px;padding:0 30px;font-size:1rem;}
.btn-block{width:100%;}
.btn-primary{
  background:linear-gradient(120deg,#FF7A3D,#FF4D2E);
  color:#0A0F18;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.25),0 10px 30px rgba(255,90,40,.35);
}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.08);box-shadow:inset 0 1px 0 rgba(255,255,255,.25),0 14px 42px rgba(255,90,40,.5);}
.btn-primary:active{transform:translateY(1px);box-shadow:inset 0 1px 0 rgba(255,255,255,.2),0 6px 18px rgba(255,90,40,.28);}
.btn-ghost{
  background:rgba(255,255,255,.05);border-color:rgba(25,227,177,.4);color:var(--primary);
}
.btn-ghost:hover{background:rgba(25,227,177,.12);transform:translateY(-2px);}
.btn-quiet{background:transparent;border-color:var(--line-strong);color:var(--text-2);}
.btn-quiet:hover{color:var(--text-1);border-color:var(--primary);}
.btn-arrow::after{content:"→";transition:transform .22s var(--ease);}
.btn-arrow:hover::after{transform:translateX(4px);}

/* ---------- drawers / modal ---------- */
.drawer-mask{position:fixed;inset:0;background:rgba(3,6,12,.7);z-index:100;backdrop-filter:blur(3px);}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:84vw;max-width:360px;z-index:101;
  background:rgba(11,18,32,.96);backdrop-filter:blur(16px) saturate(140%);
  border-left:1px solid var(--line);padding:22px 20px 28px;
  display:flex;flex-direction:column;gap:18px;
  transform:translateX(100%);transition:transform .3s var(--ease);overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;}
.drawer-nav{display:flex;flex-direction:column;gap:4px;}
.drawer-nav a{
  padding:13px 14px;border-radius:var(--radius-md);font-size:.9375rem;color:var(--text-2);
  border:1px solid transparent;transition:all .2s var(--ease);
}
.drawer-nav a:hover{color:var(--text-1);background:rgba(255,255,255,.05);}
.drawer-nav a.active{color:var(--primary);background:rgba(25,227,177,.1);border-color:rgba(25,227,177,.35);}
.drawer-note{font-size:.8125rem;color:var(--text-3);line-height:1.7;}

.modal-mask{
  position:fixed;inset:0;z-index:120;display:flex;align-items:center;justify-content:center;
  padding:16px;background:rgba(3,6,12,.72);backdrop-filter:blur(6px);
}
.modal-card{
  width:100%;max-width:520px;max-height:90vh;overflow-y:auto;
  background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  border:1px solid rgba(255,255,255,.1);border-radius:var(--radius-lg);
  box-shadow:0 30px 70px rgba(0,0,0,.6);padding:24px;
}
.modal-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:18px;}
.modal-close{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;border:1px solid var(--line);color:var(--text-2);}
.modal-close:hover{color:var(--text-1);border-color:var(--primary);}
.modal-card h3{font-size:1.125rem;font-weight:700;}
.modal-card .modal-sub{font-size:.8125rem;color:var(--text-3);margin-top:6px;line-height:1.7;}

/* ---------- forms ---------- */
.field{margin-bottom:14px;}
.field label{display:block;font-size:.8125rem;color:var(--text-2);margin-bottom:6px;}
.field input,.field select,.field textarea{
  width:100%;height:48px;padding:0 14px;border-radius:var(--radius-sm);
  background:var(--bg-2);border:1px solid var(--line);color:var(--text-1);
  font-size:.9375rem;transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field textarea{height:110px;padding:12px 14px;resize:vertical;line-height:1.7;}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3);}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--primary);box-shadow:0 0 0 4px rgba(25,227,177,.12);
}
.field.has-error input,.field.has-error select,.field.has-error textarea{border-color:var(--error);}
.field-error{display:none;font-size:.75rem;color:var(--error);margin-top:6px;}
.field.has-error .field-error{display:block;}
.check-row{display:flex;align-items:flex-start;gap:10px;font-size:.8125rem;color:var(--text-2);line-height:1.7;}
.check-row input{width:18px;height:18px;margin-top:3px;accent-color:#19E3B1;flex-shrink:0;}
.form-success{text-align:center;padding:18px 6px;}
.form-success .tick{
  width:60px;height:60px;border-radius:50%;margin:0 auto 16px;display:grid;place-items:center;
  background:rgba(25,227,177,.12);border:1px solid rgba(25,227,177,.45);color:var(--primary);font-size:1.5rem;
}

/* ---------- glass / card ---------- */
.glass{
  background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  border:1px solid rgba(255,255,255,.1);
  backdrop-filter:blur(14px) saturate(140%);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-card);
  position:relative;
}
.glass::before{
  content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;
  background:linear-gradient(180deg,rgba(255,255,255,.14),transparent 22%);
  opacity:.5;mix-blend-mode:overlay;
}
.card{
  background:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  border:1px solid rgba(255,255,255,.1);
  border-radius:var(--radius-lg);
  padding:22px;
  transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.card:hover{transform:translateY(-4px);border-color:rgba(25,227,177,.35);box-shadow:var(--shadow-hover);}
.badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:999px;
  font-size:.75rem;letter-spacing:.04em;color:var(--primary);
  border:1px solid rgba(25,227,177,.35);background:rgba(25,227,177,.08);
}
.badge-neutral{color:var(--text-2);border-color:var(--line-strong);background:rgba(255,255,255,.04);}
.badge-accent{color:var(--accent);border-color:rgba(255,106,43,.4);background:rgba(255,106,43,.08);}
.num{font-variant-numeric:tabular-nums;font-family:Inter,ui-monospace,monospace;}

/* ---------- article layout ---------- */
.page-top{padding-top:96px;}
@media(min-width:768px){.page-top{padding-top:116px;}}

.crumb{display:flex;align-items:center;gap:8px;font-size:.8125rem;color:var(--text-3);flex-wrap:wrap;}
.crumb a{color:var(--text-2);}
.crumb a:hover{color:var(--primary);}
.crumb .sep{color:var(--text-3);opacity:.6;}
.crumb .now{max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--text-2);}

.article-hero{padding:24px 0 26px;}
.article-hero h1{
  font-size:clamp(1.75rem,4.4vw,2.9rem);
  font-weight:800;letter-spacing:-.02em;line-height:1.28;
  margin:14px 0 16px;max-width:24ch;
}
.article-meta{
  display:flex;align-items:center;gap:14px;flex-wrap:wrap;
  font-size:.8125rem;color:var(--text-3);
  padding-bottom:18px;border-bottom:1px solid var(--line);
}
.article-lead{
  margin-top:20px;font-size:1.0625rem;color:var(--text-2);max-width:68ch;line-height:1.9;
}

.layout-article{display:grid;grid-template-columns:1fr;gap:32px;padding:8px 0 72px;}
@media(min-width:1024px){.layout-article{grid-template-columns:minmax(0,8fr) minmax(280px,4fr);gap:40px;}}

.article-body{font-size:1.0625rem;line-height:1.9;color:var(--text-2);max-width:72ch;}
.article-body > * + *{margin-top:18px;}
.article-body h2{
  font-size:clamp(1.4rem,2.6vw,1.75rem);font-weight:700;color:var(--text-1);
  margin-top:44px;padding-top:6px;
}
.article-body h2::after{
  content:"";display:block;width:44px;height:3px;border-radius:2px;margin-top:12px;
  background:linear-gradient(90deg,var(--primary),transparent);
}
.article-body h3{font-size:1.25rem;font-weight:600;color:var(--text-1);margin-top:32px;}
.article-body h4{font-size:1.0625rem;font-weight:600;color:var(--text-1);margin-top:24px;}
.article-body p{color:var(--text-2);}
.article-body strong{color:var(--text-1);}
.article-body a{color:var(--primary-2);border-bottom:1px solid rgba(42,169,255,.35);}
.article-body a:hover{color:var(--primary);border-bottom-color:var(--primary);}
.article-body ul,.article-body ol{padding-left:2px;list-style:none;}
.article-body li{position:relative;padding-left:22px;margin-bottom:12px;color:var(--text-2);}
.article-body ul > li::before{
  content:"";position:absolute;left:4px;top:.72em;width:7px;height:7px;border-radius:50%;
  background:var(--primary);box-shadow:0 0 10px rgba(25,227,177,.6);
}
.article-body ol{counter-reset:olcount;}
.article-body ol > li{counter-increment:olcount;padding-left:30px;}
.article-body ol > li::before{
  content:counter(olcount,decimal-leading-zero);
  position:absolute;left:0;top:0;font-size:.8125rem;font-weight:700;color:var(--accent);
  font-variant-numeric:tabular-nums;
}
.article-body blockquote{
  margin:24px 0;padding:16px 20px;border-left:3px solid var(--primary);
  background:var(--bg-2);border-radius:0 var(--radius-sm) var(--radius-sm) 0;color:var(--text-2);
}
.article-body blockquote p{margin:0;color:var(--text-2);}
.article-body img{border-radius:var(--radius-sm);margin:24px auto;}
.article-body figure{margin:26px 0;}
.article-body figcaption{
  margin-top:10px;text-align:center;font-size:.875rem;color:var(--text-3);line-height:1.7;
}
.article-body table{
  width:100%;border-collapse:collapse;margin:24px 0;font-size:.9375rem;
  border:1px solid var(--line);border-radius:var(--radius-sm);overflow:hidden;
}
.article-body thead th{
  background:var(--bg-2);color:var(--text-1);font-weight:600;text-align:left;
  padding:12px 14px;border-bottom:1px solid var(--line);font-size:.875rem;
}
.article-body tbody td{padding:12px 14px;border-bottom:1px solid var(--line);color:var(--text-2);}
.article-body tbody tr:last-child td{border-bottom:0;}
.article-body tbody tr:hover{background:rgba(25,227,177,.04);}
.article-body .note{
  padding:16px 18px;border-radius:var(--radius-md);
  background:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  border:1px solid rgba(255,255,255,.1);border-left:3px solid var(--primary);
  font-size:.9375rem;color:var(--text-2);
}
.article-body hr{border:0;height:1px;background:var(--line);margin:32px 0;}
.article-body code{
  background:var(--bg-2);border:1px solid var(--line);border-radius:6px;
  padding:2px 6px;font-size:.875em;color:var(--primary);
}

.empty-state{
  padding:52px 24px;text-align:center;border-radius:var(--radius-lg);
  background:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  border:1px solid rgba(255,255,255,.1);
}
.empty-state .ico{
  width:56px;height:56px;margin:0 auto 16px;border-radius:16px;display:grid;place-items:center;
  color:var(--primary);background:rgba(25,227,177,.1);border:1px solid rgba(25,227,177,.3);font-size:1.4rem;
}
.empty-state h3{font-size:1.125rem;font-weight:700;margin-bottom:8px;}
.empty-state p{font-size:.875rem;color:var(--text-3);margin-bottom:18px;}

/* ---------- sidebar ---------- */
.sidebar{display:flex;flex-direction:column;gap:20px;}
@media(min-width:1024px){.sidebar{position:sticky;top:96px;align-self:start;}}
.side-card{padding:20px;border-radius:var(--radius-lg);border:1px solid var(--line);background:var(--bg-1);}
.side-card h3{
  font-size:.8125rem;letter-spacing:.1em;color:var(--text-3);font-weight:600;
  text-transform:uppercase;margin-bottom:14px;
}
.toc-list{display:flex;flex-direction:column;gap:2px;max-height:320px;overflow-y:auto;}
.toc-list a{
  display:block;padding:8px 10px;border-left:2px solid var(--line);border-radius:0 8px 8px 0;
  font-size:.875rem;color:var(--text-2);transition:all .2s var(--ease);line-height:1.6;
}
.toc-list a:hover{color:var(--text-1);background:rgba(255,255,255,.04);}
.toc-list a.lv3{padding-left:22px;font-size:.8125rem;color:var(--text-3);}
.toc-list a.is-active{color:var(--primary);border-left-color:var(--primary);background:rgba(25,227,177,.08);}
.side-cta{
  padding:22px;border-radius:var(--radius-lg);border:1px solid rgba(25,227,177,.28);
  background:linear-gradient(160deg,rgba(25,227,177,.1),rgba(25,227,177,.02));
}
.side-cta h3{font-size:1rem;font-weight:700;color:var(--text-1);letter-spacing:0;text-transform:none;margin-bottom:8px;}
.side-cta p{font-size:.8125rem;color:var(--text-2);line-height:1.7;margin-bottom:16px;}
.cat-links{display:flex;flex-direction:column;gap:8px;}
.cat-links a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 14px;border-radius:var(--radius-md);font-size:.875rem;color:var(--text-2);
  background:var(--bg-2);border:1px solid var(--line);transition:all .2s var(--ease);
}
.cat-links a:hover{color:var(--primary);border-color:rgba(25,227,177,.35);transform:translateX(3px);}
.cat-links a span{color:var(--text-3);}

/* ---------- article foot ---------- */
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin:36px 0 8px;}
.pager{
  display:grid;grid-template-columns:1fr;gap:14px;margin-top:28px;
}
@media(min-width:640px){.pager{grid-template-columns:1fr 1fr;}}
.pager a{
  display:block;padding:18px 20px;border-radius:var(--radius-lg);
  border:1px solid var(--line);background:var(--bg-1);
  transition:all .24s var(--ease);
}
.pager a:hover{border-color:rgba(25,227,177,.35);transform:translateY(-3px);}
.pager .k{font-size:.75rem;letter-spacing:.08em;color:var(--text-3);display:block;margin-bottom:8px;}
.pager .t{font-size:.9375rem;color:var(--text-1);font-weight:600;display:block;line-height:1.6;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}

/* ---------- sections ---------- */
.section{padding:64px 0;}
@media(min-width:768px){.section{padding:88px 0;}}
.section-head{margin-bottom:32px;max-width:64ch;}
.section-head h2{font-size:clamp(1.4rem,3vw,2rem);font-weight:700;}
.section-head p{margin-top:12px;color:var(--text-2);font-size:1rem;line-height:1.85;}
.band{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}

.grid-3{display:grid;grid-template-columns:1fr;gap:24px;}
@media(min-width:640px){.grid-3{grid-template-columns:repeat(2,1fr);}}
@media(min-width:1024px){.grid-3{grid-template-columns:repeat(3,1fr);}}

.news-card{
  display:flex;flex-direction:column;overflow:hidden;border-radius:var(--radius-lg);
  background:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  border:1px solid rgba(255,255,255,.1);
  transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
  height:100%;
}
.news-card:hover{transform:translateY(-4px);border-color:rgba(25,227,177,.35);box-shadow:var(--shadow-hover);}
.news-cover{position:relative;aspect-ratio:16/9;overflow:hidden;border-radius:0;}
.news-cover img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .5s var(--ease);}
.news-card:hover .news-cover img{transform:scale(1.03);}
.news-cover .badge{position:absolute;left:12px;top:12px;background:rgba(6,10,18,.75);backdrop-filter:blur(6px);}
.news-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.news-body h3{
  font-size:1rem;font-weight:600;line-height:1.55;color:var(--text-1);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card:hover .news-body h3{color:var(--primary);}
.news-body p{font-size:.875rem;color:var(--text-3);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-foot{margin-top:auto;padding-top:12px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;font-size:.75rem;color:var(--text-3);white-space:nowrap;}
.news-foot .arrow{transition:transform .22s var(--ease);}
.news-card:hover .news-foot .arrow{transform:translateX(4px);color:var(--primary);}

/* ---------- cta band ---------- */
.cta-band{padding:26px;border-radius:var(--radius-lg);display:flex;flex-wrap:wrap;gap:20px;align-items:center;justify-content:space-between;
  background:linear-gradient(120deg,rgba(25,227,177,.12),rgba(42,169,255,.06));
  border:1px solid rgba(25,227,177,.28);}
.cta-band h2{font-size:clamp(1.15rem,2.4vw,1.5rem);font-weight:700;}
.cta-band p{margin-top:8px;font-size:.875rem;color:var(--text-2);max-width:60ch;}

/* ---------- footer ---------- */
.site-footer{background:#04070E;border-top:1px solid var(--line);padding:56px 0 28px;margin-top:24px;position:relative;z-index:1;}
.foot-grid{display:grid;grid-template-columns:1fr;gap:32px;}
@media(min-width:640px){.foot-grid{grid-template-columns:repeat(2,1fr);}}
@media(min-width:1024px){.foot-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;}}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.foot-brand strong{font-size:1rem;font-weight:800;}
.foot-desc{font-size:.8125rem;color:var(--text-3);line-height:1.8;max-width:44ch;}
.foot-col h3{font-size:.8125rem;letter-spacing:.1em;color:var(--text-2);font-weight:600;margin-bottom:14px;}
.foot-list{display:flex;flex-direction:column;gap:10px;}
.foot-list a,.foot-list span{font-size:.8125rem;color:var(--text-3);transition:color .2s var(--ease);}
.foot-list a:hover{color:var(--primary);}
.foot-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  font-size:.75rem;color:var(--text-3);
}
.foot-bottom .links{display:flex;gap:18px;flex-wrap:wrap;}
.foot-bottom .links a:hover{color:var(--primary);}

/* ---------- motion ---------- */
.reveal{opacity:0;transform:translateY(8px);transition:opacity .6s var(--ease),transform .6s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}
@media(prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: category2 */
:root{
    --bg-0:#060A12;
    --bg-1:#0B1220;
    --bg-2:#101A2B;
    --primary:#19E3B1;
    --primary-2:#2AA9FF;
    --accent:#FF6A2B;
    --text-1:#E8F0FA;
    --text-2:#A6B6CC;
    --text-3:#6C7C93;
    --line:rgba(255,255,255,.08);
    --line-strong:rgba(255,255,255,.14);
    --glass:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
    --glass-hover:rgba(25,227,177,.35);
    --r-lg:18px;
    --r-md:14px;
    --r-sm:12px;
    --shadow-card:0 18px 50px rgba(0,0,0,.45);
    --shadow-pop:0 24px 70px rgba(0,0,0,.6);
    --ease:cubic-bezier(.4,0,.2,1);
    --wrap:1200px;
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    padding-top:72px;
    background:var(--bg-0);
    color:var(--text-1);
    font-family:Inter,"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,sans-serif;
    font-size:1rem;
    line-height:1.8;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }
  body.no-scroll{overflow:hidden;}
  img{max-width:100%;display:block;border-style:none;}
  a{color:var(--primary-2);text-decoration:none;transition:color .22s var(--ease);}
  a:hover{color:var(--primary);}
  button{font:inherit;color:inherit;cursor:pointer;border:none;background:none;}
  ul,ol{margin:0;padding:0;list-style:none;}
  h1,h2,h3,h4,p{margin:0;}
  p{max-width:68ch;}
  :focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}
  ::selection{background:rgba(25,227,177,.28);color:#fff;}

  .wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding-left:20px;padding-right:20px;}
  @media (min-width:768px){ .wrap{padding-left:32px;padding-right:32px;} }

  /* ================= HEADER ================= */
  .site-header{
    position:fixed;top:0;left:0;right:0;z-index:80;
    background:rgba(6,10,18,.72);
    backdrop-filter:blur(14px) saturate(140%);
    -webkit-backdrop-filter:blur(14px) saturate(140%);
    border-bottom:1px solid transparent;
    transition:background .3s var(--ease),border-color .3s var(--ease);
  }
  .site-header.scrolled{background:rgba(6,10,18,.94);border-bottom-color:var(--line);}
  .header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:72px;}
  .brand{display:flex;align-items:center;gap:10px;color:var(--text-1);flex-shrink:0;}
  .brand:hover{color:var(--text-1);}
  .brand-mark{
    width:38px;height:38px;border-radius:12px;flex-shrink:0;
    display:grid;place-items:center;
    background:linear-gradient(135deg,#19E3B1,#2AA9FF);
    box-shadow:0 8px 24px rgba(25,227,177,.32);
  }
  .brand-mark svg{width:22px;height:22px;}
  .brand-text{display:flex;flex-direction:column;line-height:1.15;}
  .brand-text strong{font-size:1.0625rem;font-weight:800;letter-spacing:-.01em;}
  .brand-text em{font-style:normal;font-size:.6875rem;color:var(--text-3);letter-spacing:.12em;}

  .nav-desktop{display:none;}
  @media (min-width:1100px){
    .nav-desktop{
      display:flex;align-items:center;gap:2px;
      padding:5px;border-radius:999px;
      background:rgba(255,255,255,.04);
      border:1px solid var(--line);
    }
  }
  .nav-link{
    display:inline-flex;align-items:center;
    min-height:38px;padding:0 14px;border-radius:999px;
    font-size:.9375rem;color:var(--text-2);
    border:1px solid transparent;white-space:nowrap;
    transition:all .22s var(--ease);
  }
  .nav-link:hover{color:var(--text-1);background:rgba(255,255,255,.07);}
  .nav-link.active{
    color:var(--primary);
    background:rgba(25,227,177,.12);
    border-color:rgba(25,227,177,.35);
  }
  .header-right{display:flex;align-items:center;gap:10px;}

  .hamburger{
    width:44px;height:44px;border-radius:12px;
    border:1px solid var(--line-strong);
    background:rgba(255,255,255,.05);
    display:grid;place-items:center;
    transition:background .22s var(--ease),border-color .22s var(--ease);
  }
  .hamburger:hover{border-color:rgba(25,227,177,.45);background:rgba(25,227,177,.1);}
  .hamburger span{display:block;width:18px;height:2px;background:var(--text-1);border-radius:2px;position:relative;}
  .hamburger span::before,.hamburger span::after{
    content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text-1);border-radius:2px;
    transition:transform .26s var(--ease),opacity .2s var(--ease);
  }
  .hamburger span::before{top:-6px;}
  .hamburger span::after{top:6px;}
  .hamburger[aria-expanded="true"] span{background:transparent;}
  .hamburger[aria-expanded="true"] span::before{transform:translateY(6px) rotate(45deg);}
  .hamburger[aria-expanded="true"] span::after{transform:translateY(-6px) rotate(-45deg);}
  @media (min-width:1100px){ .hamburger{display:none;} }

  /* ================= BUTTONS ================= */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    min-height:48px;padding:0 24px;border-radius:999px;
    font-weight:600;font-size:.9375rem;letter-spacing:.02em;
    border:1px solid transparent;
    transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
  }
  .btn-sm{min-height:40px;padding:0 18px;font-size:.875rem;}
  .btn-primary{
    background:linear-gradient(120deg,#FF7A3D,#FF4D2E);
    color:#fff;
    box-shadow:0 10px 30px rgba(255,90,40,.35),inset 0 1px 0 rgba(255,255,255,.25);
  }
  .btn-primary:hover{
    color:#fff;
    filter:brightness(1.08);
    transform:translateY(-2px);
    box-shadow:0 14px 42px rgba(255,90,40,.5),inset 0 1px 0 rgba(255,255,255,.25);
  }
  .btn-primary:active{transform:translateY(0);box-shadow:0 6px 18px rgba(255,90,40,.34);}
  .btn-ghost{
    background:var(--glass);
    border-color:rgba(25,227,177,.4);
    color:var(--primary);
  }
  .btn-ghost:hover{background:rgba(25,227,177,.12);color:var(--primary);transform:translateY(-2px);}
  .btn-plain{
    color:var(--text-2);padding:0 8px;min-height:44px;
  }
  .btn-plain:hover{color:var(--primary);}
  .btn-plain .arrow{transition:transform .22s var(--ease);display:inline-block;}
  .btn-plain:hover .arrow{transform:translateX(4px);}

  /* ================= DRAWER ================= */
  .drawer-mask{
    position:fixed;inset:0;z-index:90;
    background:rgba(3,6,12,.7);
    backdrop-filter:blur(3px);
    opacity:0;visibility:hidden;transition:opacity .3s var(--ease),visibility .3s var(--ease);
  }
  .drawer-mask.open{opacity:1;visibility:visible;}
  .drawer{
    position:fixed;top:0;right:0;bottom:0;z-index:95;
    width:84vw;max-width:360px;
    background:linear-gradient(160deg,rgba(16,26,43,.98),rgba(6,10,18,.99));
    border-left:1px solid var(--line-strong);
    padding:22px 20px 28px;
    display:flex;flex-direction:column;gap:18px;
    transform:translateX(102%);
    transition:transform .34s var(--ease);
    overflow-y:auto;
  }
  .drawer.open{transform:translateX(0);}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;}
  .drawer-close{
    width:44px;height:44px;border-radius:12px;border:1px solid var(--line-strong);
    display:grid;place-items:center;color:var(--text-2);font-size:1.25rem;
  }
  .drawer-close:hover{color:var(--primary);border-color:rgba(25,227,177,.4);}
  .drawer-nav{display:flex;flex-direction:column;gap:6px;}
  .drawer-nav a{
    padding:13px 14px;border-radius:12px;color:var(--text-2);font-size:.9375rem;
    border:1px solid transparent;
    opacity:0;transform:translateY(8px);
    animation:none;
  }
  .drawer.open .drawer-nav a{animation:drawerIn .34s var(--ease) forwards;}
  .drawer.open .drawer-nav a:nth-child(1){animation-delay:.04s;}
  .drawer.open .drawer-nav a:nth-child(2){animation-delay:.08s;}
  .drawer.open .drawer-nav a:nth-child(3){animation-delay:.12s;}
  .drawer.open .drawer-nav a:nth-child(4){animation-delay:.16s;}
  .drawer.open .drawer-nav a:nth-child(5){animation-delay:.20s;}
  .drawer.open .drawer-nav a:nth-child(6){animation-delay:.24s;}
  .drawer-nav a:hover{background:rgba(255,255,255,.06);color:var(--text-1);}
  .drawer-nav a.active{color:var(--primary);background:rgba(25,227,177,.12);border-color:rgba(25,227,177,.32);}
  .drawer-sep{height:1px;background:var(--line);}
  .drawer-note{font-size:.8125rem;color:var(--text-3);line-height:1.7;}
  @keyframes drawerIn{to{opacity:1;transform:translateY(0);}}

  /* ================= PAGE HERO ================= */
  .page-hero{
    position:relative;
    background-color:var(--bg-1);
    background-image:url('/assets/images/backpic/back-2.png');
    background-size:cover;
    background-position:center;
    padding:72px 0 68px;
    overflow:hidden;
  }
  .page-hero::before{
    content:"";position:absolute;inset:0;
    background:linear-gradient(180deg,rgba(6,10,18,.62),rgba(6,10,18,.94));
  }
  .page-hero::after{
    content:"";position:absolute;inset:0;
    background:radial-gradient(680px 320px at 12% 20%,rgba(25,227,177,.16),transparent 70%);
    pointer-events:none;
  }
  .page-hero-inner{position:relative;z-index:2;max-width:840px;}
  .breadcrumb{
    display:flex;align-items:center;gap:8px;flex-wrap:wrap;
    font-size:.8125rem;color:var(--text-3);margin-bottom:22px;
  }
  .breadcrumb a{color:var(--text-2);}
  .breadcrumb a:hover{color:var(--primary);}
  .breadcrumb .sep{color:var(--text-3);}
  .breadcrumb .current{color:var(--text-1);max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    padding:6px 14px;border-radius:999px;
    font-size:.75rem;letter-spacing:.06em;color:var(--primary);
    background:rgba(25,227,177,.1);
    border:1px solid rgba(25,227,177,.3);
    margin-bottom:18px;
  }
  .eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px var(--primary);}

  h1{
    font-size:clamp(1.85rem,4.6vw,2.9rem);
    font-weight:800;letter-spacing:-.02em;line-height:1.28;
    margin-bottom:18px;
  }
  .lede{
    font-size:1.0625rem;color:var(--text-2);line-height:1.85;
    max-width:62ch;margin-bottom:26px;
  }
  .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:22px;}
  .hero-tags{display:flex;flex-wrap:wrap;gap:8px;}
  .tag{
    padding:5px 12px;border-radius:999px;font-size:.75rem;letter-spacing:.04em;
    color:var(--text-2);background:rgba(255,255,255,.05);border:1px solid var(--line);
  }
  .tag.mint{color:var(--primary);border-color:rgba(25,227,177,.3);background:rgba(25,227,177,.08);}

  /* ================= SECTIONS ================= */
  .section{padding:72px 0;}
  @media (min-width:768px){ .section{padding:96px 0;} }
  .section.alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
  .section-head{max-width:760px;margin-bottom:44px;}
  .section-head h2{
    font-size:clamp(1.45rem,3.1vw,2.15rem);
    font-weight:700;letter-spacing:-.01em;line-height:1.35;margin-bottom:14px;
  }
  .section-head p{color:var(--text-2);}
  .kicker{
    display:block;font-size:.75rem;letter-spacing:.16em;color:var(--primary);
    margin-bottom:12px;text-transform:uppercase;
  }

  /* ================= ALT ROWS ================= */
  .alt-row{
    display:grid;grid-template-columns:1fr;gap:28px;align-items:center;
    padding:28px 0;
  }
  .alt-row + .alt-row{border-top:1px solid var(--line);}
  @media (min-width:900px){
    .alt-row{grid-template-columns:1fr 1fr;gap:56px;padding:44px 0;}
    .alt-row.reverse .alt-text{order:2;}
    .alt-row.reverse .alt-media{order:1;}
  }
  @media (max-width:899px){
    .alt-media{order:-1;}
  }
  .alt-text h3{
    font-size:1.25rem;font-weight:700;line-height:1.5;margin-bottom:14px;
  }
  .alt-text p{color:var(--text-2);margin-bottom:14px;font-size:.9688rem;}
  .step-index{
    display:inline-flex;align-items:center;justify-content:center;
    width:34px;height:34px;border-radius:10px;
    font-size:.8125rem;font-weight:700;font-variant-numeric:tabular-nums;
    color:#0A0F18;background:linear-gradient(120deg,#FF7A3D,#FF4D2E);
    box-shadow:0 8px 20px rgba(255,90,40,.32);
    margin-bottom:14px;
  }
  .check-list{display:flex;flex-direction:column;gap:10px;margin:16px 0 4px;}
  .check-list li{
    position:relative;padding-left:26px;color:var(--text-2);font-size:.9375rem;line-height:1.75;
  }
  .check-list li::before{
    content:"";position:absolute;left:0;top:.62em;
    width:8px;height:8px;border-radius:2px;
    background:var(--primary);box-shadow:0 0 10px rgba(25,227,177,.6);
  }
  .mini-note{
    display:flex;gap:10px;align-items:flex-start;
    padding:14px 16px;border-radius:var(--r-md);
    background:var(--bg-2);border:1px solid var(--line);
    font-size:.875rem;color:var(--text-2);line-height:1.7;
  }
  .mini-note strong{color:var(--text-1);font-weight:600;}
  .mini-note .dot{
    flex-shrink:0;width:8px;height:8px;border-radius:50%;margin-top:.55em;
    background:var(--primary);box-shadow:0 0 12px var(--primary);
  }
  .alt-media{
    position:relative;border-radius:var(--r-lg);overflow:hidden;
    border:1px solid var(--line-strong);
    box-shadow:var(--shadow-card);
    background:linear-gradient(140deg,rgba(25,227,177,.16),rgba(42,169,255,.08));
  }
  .alt-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .5s var(--ease);}
  .alt-media:hover img{transform:scale(1.03);}
  .alt-media .badge-float{
    position:absolute;left:14px;top:14px;
    padding:5px 12px;border-radius:999px;font-size:.75rem;letter-spacing:.04em;
    color:var(--primary);background:rgba(6,10,18,.72);
    border:1px solid rgba(25,227,177,.34);backdrop-filter:blur(8px);
  }

  /* ================= QUICK ORDER CARDS ================= */
  .order-grid{display:grid;grid-template-columns:1fr;gap:20px;}
  @media (min-width:640px){ .order-grid{grid-template-columns:repeat(2,1fr);} }
  @media (min-width:1024px){ .order-grid{grid-template-columns:repeat(4,1fr);} }
  .order-card{
    background:var(--glass);
    border:1px solid var(--line);
    border-radius:var(--r-lg);
    padding:24px 22px;
    box-shadow:var(--shadow-card);
    backdrop-filter:blur(14px) saturate(140%);
    transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
  }
  .order-card:hover{
    transform:translateY(-4px);
    border-color:var(--glass-hover);
    box-shadow:var(--shadow-card),0 0 32px rgba(25,227,177,.18);
  }
  .order-card h3{font-size:1.0625rem;font-weight:600;margin-bottom:10px;}
  .order-card p{font-size:.9063rem;color:var(--text-2);line-height:1.75;}
  .order-num{
    font-family:Inter,monospace;font-variant-numeric:tabular-nums;
    font-size:.8125rem;letter-spacing:.1em;color:var(--accent);font-weight:700;
    display:block;margin-bottom:12px;
  }

  /* ================= FAQ ================= */
  .faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px;}
  .faq-item{
    background:linear-gradient(160deg,rgba(255,255,255,.055),rgba(255,255,255,.018));
    border:1px solid var(--line);
    border-radius:var(--r-md);
    overflow:hidden;
    transition:border-color .24s var(--ease),background .24s var(--ease);
  }
  .faq-item:hover{border-color:var(--line-strong);}
  .faq-item.open{border-color:rgba(25,227,177,.34);background:rgba(25,227,177,.055);}
  .faq-q{
    display:flex;align-items:center;justify-content:space-between;gap:16px;
    width:100%;text-align:left;
    min-height:60px;padding:16px 20px;
    font-size:1rem;font-weight:600;color:var(--text-1);line-height:1.6;
  }
  .faq-q:hover{color:var(--primary);}
  .faq-icon{
    position:relative;flex-shrink:0;width:22px;height:22px;border-radius:50%;
    border:1px solid rgba(25,227,177,.45);
  }
  .faq-icon::before,.faq-icon::after{
    content:"";position:absolute;left:50%;top:50%;background:var(--primary);border-radius:2px;
    transform:translate(-50%,-50%);
    transition:transform .24s var(--ease),opacity .24s var(--ease);
  }
  .faq-icon::before{width:10px;height:2px;}
  .faq-icon::after{width:2px;height:10px;}
  .faq-item.open .faq-icon::after{transform:translate(-50%,-50%) scaleY(0);opacity:0;}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .26s var(--ease);}
  .faq-a-inner{
    padding:0 20px 20px 20px;
    border-left:3px solid transparent;
    margin-left:20px;padding-left:14px;
    transition:border-color .24s var(--ease);
  }
  .faq-item.open .faq-a-inner{border-left-color:var(--primary);}
  .faq-a-inner p{font-size:.9375rem;color:var(--text-2);line-height:1.85;}
  .faq-a-inner p + p{margin-top:10px;}

  /* ================= INNER LINKS ================= */
  .link-cards{display:grid;grid-template-columns:1fr;gap:18px;}
  @media (min-width:768px){ .link-cards{grid-template-columns:repeat(3,1fr);} }
  .link-card{
    display:flex;flex-direction:column;gap:10px;
    padding:24px 22px;border-radius:999px 999px 999px 999px;
    background:var(--glass);
    border:1px solid var(--line);
    backdrop-filter:blur(14px) saturate(140%);
    transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
  }
  .link-card:hover{
    transform:translateY(-4px);
    border-color:var(--glass-hover);
    box-shadow:0 0 32px rgba(25,227,177,.16);
  }
  .link-card strong{color:var(--text-1);font-size:1rem;font-weight:600;}
  .link-card span{color:var(--text-3);font-size:.8438rem;line-height:1.7;}
  .link-card .go{color:var(--primary);font-size:.875rem;font-weight:600;display:inline-flex;gap:6px;align-items:center;}
  .link-card:hover .go .arrow{transform:translateX(4px);}
  .link-card .go .arrow{transition:transform .22s var(--ease);}

  /* ================= CTA ================= */
  .cta-band{
    position:relative;overflow:hidden;
    border-radius:24px;
    padding:40px 28px;
    background:linear-gradient(150deg,rgba(25,227,177,.14),rgba(42,169,255,.07));
    border:1px solid rgba(25,227,177,.3);
    box-shadow:var(--shadow-card);
    display:flex;flex-direction:column;gap:22px;
  }
  @media (min-width:900px){
    .cta-band{flex-direction:row;align-items:center;justify-content:space-between;padding:48px 44px;gap:40px;}
  }
  .cta-band h2{font-size:clamp(1.3rem,2.6vw,1.75rem);font-weight:700;margin-bottom:10px;}
  .cta-band p{color:var(--text-2);font-size:.9375rem;max-width:56ch;}
  .cta-actions{display:flex;flex-wrap:wrap;gap:12px;flex-shrink:0;}
  .privacy-line{font-size:.8125rem;color:var(--text-3);margin-top:12px;}

  /* ================= FOOTER ================= */
  .site-footer{
    background:#04070D;
    border-top:1px solid var(--line);
    padding:64px 0 28px;
    margin-top:8px;
  }
  .foot-grid{display:grid;grid-template-columns:1fr;gap:32px;}
  @media (min-width:700px){ .foot-grid{grid-template-columns:repeat(2,1fr);} }
  @media (min-width:1024px){ .foot-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;} }
  .foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
  .foot-brand strong{font-size:1rem;font-weight:700;}
  .foot-desc{font-size:.875rem;color:var(--text-3);line-height:1.8;max-width:38ch;}
  .foot-col h3{font-size:.9375rem;font-weight:600;color:var(--text-1);margin-bottom:14px;}
  .foot-list{display:flex;flex-direction:column;gap:10px;}
  .foot-list a,.foot-list span{font-size:.875rem;color:var(--text-3);line-height:1.6;}
  .foot-list a:hover{color:var(--primary);}
  .foot-bottom{
    margin-top:44px;padding-top:20px;border-top:1px solid var(--line);
    display:flex;flex-direction:column;gap:12px;
    font-size:.8125rem;color:var(--text-3);
  }
  @media (min-width:768px){ .foot-bottom{flex-direction:row;align-items:center;justify-content:space-between;} }
  .foot-bottom .links{display:flex;flex-wrap:wrap;gap:18px;}
  .foot-bottom .links a{color:var(--text-3);}
  .foot-bottom .links a:hover{color:var(--primary);}

  /* ================= MODAL ================= */
  .modal-mask{
    position:fixed;inset:0;z-index:120;
    background:rgba(3,6,12,.72);
    backdrop-filter:blur(6px);
    display:flex;align-items:center;justify-content:center;
    padding:16px;
    opacity:0;visibility:hidden;
    transition:opacity .28s var(--ease),visibility .28s var(--ease);
  }
  .modal-mask.open{opacity:1;visibility:visible;}
  .modal-card{
    width:100%;max-width:520px;max-height:90vh;overflow-y:auto;
    border-radius:20px;
    background:linear-gradient(160deg,rgba(16,26,43,.98),rgba(11,18,32,.99));
    border:1px solid var(--line-strong);
    box-shadow:var(--shadow-pop);
    padding:26px 24px;
    transform:translateY(12px) scale(.98);
    transition:transform .3s var(--ease);
  }
  .modal-mask.open .modal-card{transform:translateY(0) scale(1);}
  .modal-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:8px;}
  .modal-head h2{font-size:1.15rem;font-weight:700;}
  .modal-head p{font-size:.8438rem;color:var(--text-3);margin-top:6px;}
  .modal-close{
    width:44px;height:44px;flex-shrink:0;border-radius:12px;
    border:1px solid var(--line-strong);display:grid;place-items:center;
    color:var(--text-2);font-size:1.3rem;line-height:1;
  }
  .modal-close:hover{color:var(--primary);border-color:rgba(25,227,177,.45);}

  .form-grid{display:grid;grid-template-columns:1fr;gap:16px;margin-top:18px;}
  .field{display:flex;flex-direction:column;gap:8px;}
  .field label{font-size:.8438rem;color:var(--text-2);}
  .field input,.field select,.field textarea{
    width:100%;min-height:48px;
    padding:12px 14px;
    border-radius:var(--r-sm);
    background:var(--bg-2);
    border:1px solid var(--line-strong);
    color:var(--text-1);
    font-size:.9375rem;font-family:inherit;line-height:1.6;
    transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
  }
  .field textarea{min-height:110px;resize:vertical;}
  .field input::placeholder,.field textarea::placeholder{color:var(--text-3);}
  .field input:focus,.field select:focus,.field textarea:focus{
    outline:none;border-color:var(--primary);
    box-shadow:0 0 0 4px rgba(25,227,177,.12);
  }
  .field.error input,.field.error select,.field.error textarea{
    border-color:#FF4D5E;box-shadow:0 0 0 4px rgba(255,77,94,.1);
  }
  .field .err-msg{display:none;font-size:.8125rem;color:#FF4D5E;}
  .field.error .err-msg{display:block;}
  .check-row{display:flex;align-items:flex-start;gap:10px;margin-top:4px;}
  .check-row input[type="checkbox"]{
    width:20px;height:20px;margin-top:3px;flex-shrink:0;accent-color:#19E3B1;
  }
  .check-row label{font-size:.8125rem;color:var(--text-3);line-height:1.7;}
  .check-row a{color:var(--primary-2);}
  .form-actions{margin-top:20px;display:flex;flex-direction:column;gap:12px;}
  .form-actions .btn{width:100%;}
  .form-note{font-size:.75rem;color:var(--text-3);text-align:center;}
  .success-panel{display:none;text-align:center;padding:18px 6px 6px;}
  .success-panel.show{display:block;}
  .success-check{
    width:60px;height:60px;border-radius:50%;margin:0 auto 16px;
    display:grid;place-items:center;
    background:rgba(25,227,177,.12);border:1px solid rgba(25,227,177,.45);
    color:var(--primary);font-size:1.7rem;
    box-shadow:0 0 26px rgba(25,227,177,.24);
  }
  .success-panel h3{font-size:1.0625rem;font-weight:700;margin-bottom:8px;}
  .success-panel p{font-size:.875rem;color:var(--text-2);margin:0 auto 18px;}

  /* ================= REVEAL ================= */
  .reveal{opacity:0;transform:translateY(8px);transition:opacity .6s var(--ease),transform .6s var(--ease);}
  .reveal.in{opacity:1;transform:none;}

  @media (prefers-reduced-motion:reduce){
    *,*::before,*::after{animation:none !important;transition:none !important;}
    .reveal{opacity:1;transform:none;}
    html{scroll-behavior:auto;}
  }
  @media (max-width:639px){
    body{font-size:.9688rem;padding-top:60px;}
    .header-inner{height:60px;}
    .brand-mark{width:34px;height:34px;border-radius:10px;}
    .brand-text strong{font-size:.9688rem;}
    .brand-text em{font-size:.625rem;letter-spacing:.08em;}
    .btn{min-height:46px;padding:0 20px;}
    .page-hero{padding:48px 0 52px;}
    .section{padding:64px 0;}
    .cta-band{padding:32px 20px;border-radius:20px;}
  }

/* roulang page: category4 */
:root{
    --bg-0:#060A12;
    --bg-1:#0B1220;
    --bg-2:#101A2B;
    --primary:#19E3B1;
    --primary-2:#2AA9FF;
    --accent:#FF6A2B;
    --text-1:#E8F0FA;
    --text-2:#A6B6CC;
    --text-3:#6C7C93;
    --line:rgba(255,255,255,.08);
    --danger:#FF4D5E;
    --r-lg:18px;
    --r-md:14px;
    --r-sm:12px;
    --pill:999px;
    --shadow-card:0 18px 50px rgba(0,0,0,.45);
    --shadow-lift:0 26px 64px rgba(0,0,0,.55);
    --maxw:1200px;
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    background:var(--bg-0);
    color:var(--text-1);
    font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
    font-size:16px;
    line-height:1.8;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }
  body.no-scroll{overflow:hidden;}
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;transition:color .2s cubic-bezier(.4,0,.2,1);}
  button{font-family:inherit;cursor:pointer;}
  h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;}
  p{margin:0 0 1em;color:var(--text-2);max-width:68ch;}
  ul{margin:0;padding:0;list-style:none;}
  :focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}

  .wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 20px;}
  @media (min-width:768px){.wrap{padding:0 32px;}}
  .num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1;}

  /* ---------- Header ---------- */
  .site-header{
    position:fixed;top:0;left:0;right:0;z-index:80;
    background:rgba(6,10,18,.62);
    backdrop-filter:blur(14px) saturate(140%);
    -webkit-backdrop-filter:blur(14px) saturate(140%);
    border-bottom:1px solid transparent;
    transition:background .28s ease,border-color .28s ease;
  }
  .site-header.is-scrolled{background:rgba(6,10,18,.92);border-bottom-color:var(--line);}
  .header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:60px;}
  @media (min-width:1024px){.header-inner{height:72px;}}

  .brand{display:flex;align-items:center;gap:10px;min-height:44px;}
  .brand-mark{
    width:34px;height:34px;flex:none;border-radius:10px;
    background:linear-gradient(135deg,#19E3B1,#2AA9FF);
    display:flex;align-items:center;justify-content:center;
    box-shadow:0 0 22px rgba(25,227,177,.28);
  }
  .brand-mark svg{width:20px;height:20px;}
  .brand-text{display:flex;flex-direction:column;line-height:1.15;}
  .brand-text strong{font-size:16px;font-weight:800;letter-spacing:.01em;color:var(--text-1);}
  .brand-text em{font-style:normal;font-size:11px;color:var(--text-3);letter-spacing:.14em;}

  .nav-desktop{display:none;}
  @media (min-width:1024px){
    .nav-desktop{
      display:flex;align-items:center;gap:4px;
      padding:5px;border-radius:var(--pill);
      background:rgba(255,255,255,.04);
      border:1px solid var(--line);
    }
  }
  .nav-link{
    padding:8px 14px;border-radius:var(--pill);
    font-size:14px;color:var(--text-2);
    border:1px solid transparent;
    transition:color .2s,background .2s,border-color .2s;
    white-space:nowrap;
  }
  .nav-link:hover{color:var(--text-1);background:rgba(255,255,255,.05);}
  .nav-link.active{
    color:var(--primary);
    background:rgba(25,227,177,.12);
    border-color:rgba(25,227,177,.34);
  }

  .header-right{display:flex;align-items:center;gap:10px;}

  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    min-height:44px;padding:0 20px;border-radius:var(--pill);
    font-size:15px;font-weight:600;letter-spacing:.02em;
    border:1px solid transparent;
    transition:transform .24s cubic-bezier(.4,0,.2,1),box-shadow .24s,background .24s,border-color .24s,color .24s;
  }
  .btn-sm{min-height:40px;padding:0 18px;font-size:14px;}
  .btn.btn-primary{
    background-image:linear-gradient(120deg,#FF7A3D,#FF4D2E);
    background-color:#FF5A28;
    color:#0A0F18;
    box-shadow:0 10px 30px rgba(255,90,40,.35),inset 0 1px 0 rgba(255,255,255,.25);
  }
  .btn.btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 14px 42px rgba(255,90,40,.5),inset 0 1px 0 rgba(255,255,255,.25);}
  .btn.btn-primary:active{transform:translateY(1px);box-shadow:0 6px 18px rgba(255,90,40,.3);}
  .btn.btn-ghost{
    background:rgba(255,255,255,.05);
    border-color:rgba(25,227,177,.4);
    color:var(--primary);
  }
  .btn.btn-ghost:hover{background:rgba(25,227,177,.12);transform:translateY(-2px);}
  .btn.btn-quiet{background:transparent;color:var(--text-2);padding:0 8px;}
  .btn.btn-quiet:hover{color:var(--primary);}
  .btn.btn-quiet .arrow{transition:transform .24s;}
  .btn.btn-quiet:hover .arrow{transform:translateX(4px);}

  .hamburger{
    width:44px;height:44px;border-radius:12px;
    background:rgba(255,255,255,.05);
    border:1px solid var(--line);
    display:flex;align-items:center;justify-content:center;
  }
  @media (min-width:1024px){.hamburger{display:none;}}
  .hamburger span{display:block;width:18px;height:2px;background:var(--text-1);position:relative;border-radius:2px;}
  .hamburger span::before,.hamburger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text-1);border-radius:2px;transition:transform .24s;}
  .hamburger span::before{top:-6px;}
  .hamburger span::after{top:6px;}

  /* ---------- Drawer ---------- */
  .drawer-mask{
    position:fixed;inset:0;background:rgba(3,6,12,.7);
    backdrop-filter:blur(4px);opacity:0;visibility:hidden;
    transition:opacity .28s,visibility .28s;z-index:90;
  }
  .drawer-mask.open{opacity:1;visibility:visible;}
  .drawer{
    position:fixed;top:0;right:0;bottom:0;width:84vw;max-width:380px;z-index:95;
    background:rgba(11,18,32,.96);
    backdrop-filter:blur(16px) saturate(140%);
    border-left:1px solid var(--line);
    transform:translateX(100%);
    transition:transform .32s cubic-bezier(.4,0,.2,1);
    padding:22px 22px 32px;display:flex;flex-direction:column;gap:18px;overflow-y:auto;
  }
  .drawer.open{transform:translateX(0);}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;}
  .drawer-close{
    width:44px;height:44px;border-radius:12px;background:rgba(255,255,255,.05);
    border:1px solid var(--line);color:var(--text-1);font-size:20px;line-height:1;
  }
  .drawer-nav{display:flex;flex-direction:column;gap:6px;}
  .drawer-nav a{
    padding:12px 14px;border-radius:var(--r-sm);font-size:15px;color:var(--text-2);
    background:rgba(255,255,255,.03);border:1px solid transparent;
    opacity:0;transform:translateY(6px);animation:none;
  }
  .drawer.open .drawer-nav a{animation:drawerIn .4s cubic-bezier(.4,0,.2,1) forwards;}
  .drawer.open .drawer-nav a:nth-child(1){animation-delay:.04s;}
  .drawer.open .drawer-nav a:nth-child(2){animation-delay:.08s;}
  .drawer.open .drawer-nav a:nth-child(3){animation-delay:.12s;}
  .drawer.open .drawer-nav a:nth-child(4){animation-delay:.16s;}
  .drawer.open .drawer-nav a:nth-child(5){animation-delay:.20s;}
  .drawer.open .drawer-nav a:nth-child(6){animation-delay:.24s;}
  .drawer-nav a.active{color:var(--primary);background:rgba(25,227,177,.12);border-color:rgba(25,227,177,.3);}
  .drawer-divider{height:1px;background:var(--line);}
  .drawer-note{font-size:12.5px;color:var(--text-3);line-height:1.7;margin:0;}
  @keyframes drawerIn{to{opacity:1;transform:translateY(0);}}

  /* ---------- Common blocks ---------- */
  main{padding-top:60px;}
  @media (min-width:1024px){main{padding-top:72px;}}

  .crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);padding:22px 0 0;flex-wrap:wrap;}
  .crumbs a{color:var(--text-3);}
  .crumbs a:hover{color:var(--primary);}
  .crumbs .sep{color:rgba(255,255,255,.2);}
  .crumbs .now{color:var(--text-2);max-width:60vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

  .section{padding:64px 0;}
  @media (min-width:1024px){.section{padding:96px 0;}}
  .section-alt{background:var(--bg-1);}
  .grid-bg{
    background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),
                     linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
    background-size:32px 32px;
  }

  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    font-size:12px;letter-spacing:.14em;color:var(--primary);
    padding:6px 14px;border-radius:var(--pill);
    background:rgba(25,227,177,.08);
    border:1px solid rgba(25,227,177,.26);
    margin-bottom:16px;
  }
  .sec-head{max-width:760px;margin-bottom:36px;}
  .sec-head h2{font-size:clamp(1.5rem,3.2vw,2.25rem);font-weight:700;letter-spacing:-.01em;}
  .sec-head p{margin-top:14px;font-size:1.0625rem;color:var(--text-2);}

  .card{
    background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
    border:1px solid rgba(255,255,255,.10);
    border-radius:var(--r-lg);
    box-shadow:var(--shadow-card);
    backdrop-filter:blur(14px) saturate(140%);
    -webkit-backdrop-filter:blur(14px) saturate(140%);
    transition:transform .24s cubic-bezier(.4,0,.2,1),border-color .24s,box-shadow .24s;
    position:relative;
    overflow:hidden;
  }
  .card::before{
    content:"";position:absolute;top:0;left:0;right:0;height:1px;
    background:linear-gradient(90deg,transparent,rgba(255,255,255,.22),transparent);
  }
  .card:hover{
    transform:translateY(-4px);
    border-color:rgba(25,227,177,.35);
    box-shadow:var(--shadow-lift),0 0 32px rgba(25,227,177,.18);
  }

  .badge{
    display:inline-flex;align-items:center;gap:6px;
    padding:4px 12px;border-radius:var(--pill);
    font-size:12px;letter-spacing:.04em;
    border:1px solid rgba(255,255,255,.14);
    color:var(--text-2);background:rgba(255,255,255,.03);
  }
  .badge-primary{border-color:rgba(25,227,177,.38);color:var(--primary);background:rgba(25,227,177,.08);}
  .badge-accent{border-color:rgba(255,106,43,.42);color:var(--accent);background:rgba(255,106,43,.08);}

  /* ---------- Hero ---------- */
  .hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line);}
  .hero::before{
    content:"";position:absolute;inset:0;
    background-image:url('/assets/images/backpic/back-2.png');
    background-size:cover;background-position:center;
    opacity:.30;
  }
  .hero::after{
    content:"";position:absolute;inset:0;
    background:linear-gradient(180deg,rgba(6,10,18,.72),rgba(6,10,18,.96) 78%,var(--bg-0));
  }
  .hero-inner{position:relative;z-index:2;padding:34px 0 64px;}
  @media (min-width:1024px){.hero-inner{padding:44px 0 96px;}}
  .hero-grid{display:grid;gap:32px;align-items:center;}
  @media (min-width:1024px){.hero-grid{grid-template-columns:1.05fr .95fr;gap:56px;}}
  .hero h1{
    font-size:clamp(2rem,5.2vw,3.4rem);
    font-weight:800;letter-spacing:-.02em;line-height:1.18;
    margin:8px 0 18px;
  }
  .hero h1 span{
    background:linear-gradient(120deg,#19E3B1,#2AA9FF);
    -webkit-background-clip:text;background-clip:text;color:transparent;
  }
  .hero-lead{font-size:1.0625rem;color:var(--text-2);max-width:62ch;}
  .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;}
  .hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px;}
  .hero-figure{
    position:relative;border-radius:var(--r-lg);overflow:hidden;
    border:1px solid rgba(255,255,255,.12);box-shadow:var(--shadow-card);
  }
  .hero-figure img{width:100%;height:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .5s cubic-bezier(.4,0,.2,1);}
  .hero-figure:hover img{transform:scale(1.03);}
  .hero-figure figcaption{
    position:absolute;left:0;right:0;bottom:0;
    padding:14px 18px;font-size:13px;color:var(--text-2);
    background:linear-gradient(180deg,rgba(6,10,18,0),rgba(6,10,18,.92));
  }

  /* ---------- Timeline ---------- */
  .timeline{position:relative;margin-top:8px;}
  .timeline::before{
    content:"";position:absolute;top:8px;bottom:8px;left:17px;width:1px;
    background:linear-gradient(180deg,rgba(25,227,177,.55),rgba(25,227,177,.16),rgba(25,227,177,0));
  }
  @media (min-width:900px){
    .timeline::before{left:50%;transform:translateX(-50%);}
  }
  .tl-item{position:relative;padding:0 0 30px 52px;}
  @media (min-width:900px){
    .tl-item{width:50%;padding:0 52px 40px 0;}
    .tl-item:nth-child(even){margin-left:50%;padding:0 0 40px 52px;}
  }
  .tl-dot{
    position:absolute;left:8px;top:26px;width:20px;height:20px;border-radius:50%;
    background:radial-gradient(circle,#FFB08A 0%,#FF6A2B 45%,rgba(255,106,43,.25) 70%,transparent 72%);
    box-shadow:0 0 18px rgba(255,106,43,.55);
    animation:breath 3.2s ease-in-out infinite;
  }
  @media (min-width:900px){
    .tl-dot{left:auto;right:-10px;top:28px;}
    .tl-item:nth-child(even) .tl-dot{left:-10px;right:auto;}
  }
  @keyframes breath{0%,100%{opacity:.75;}50%{opacity:1;}}
  .tl-card{padding:22px 24px;}
  .tl-step{display:flex;align-items:center;gap:10px;margin-bottom:10px;}
  .tl-idx{
    font-size:13px;letter-spacing:.06em;color:var(--accent);
    font-variant-numeric:tabular-nums;font-weight:700;
  }
  .tl-card h3{font-size:1.125rem;font-weight:600;color:var(--text-1);margin-bottom:8px;}
  .tl-card p{margin:0;font-size:.95rem;color:var(--text-2);}
  .tl-tip{
    margin-top:14px;padding:10px 14px;border-radius:var(--r-sm);
    background:rgba(16,26,43,.85);border:1px solid var(--line);
    font-size:13px;color:var(--text-3);
  }
  .tl-tip strong{color:var(--primary);font-weight:600;}

  /* ---------- Privacy cards ---------- */
  .priv-grid{display:grid;gap:20px;}
  @media (min-width:640px){.priv-grid{grid-template-columns:repeat(2,1fr);}}
  .priv-card{padding:26px;}
  .priv-ico{
    width:40px;height:40px;border-radius:12px;flex:none;
    display:flex;align-items:center;justify-content:center;
    background:rgba(25,227,177,.10);
    border:1px solid rgba(25,227,177,.28);
    margin-bottom:16px;
  }
  .priv-ico svg{width:20px;height:20px;stroke:var(--primary);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
  .priv-card h3{font-size:1.0625rem;font-weight:600;margin-bottom:10px;}
  .priv-card p{font-size:.9375rem;margin:0;}

  /* ---------- Not-do card ---------- */
  .notdo{
    margin-top:28px;padding:30px;
    border-radius:var(--r-lg);
    background:linear-gradient(160deg,rgba(16,26,43,.95),rgba(11,18,32,.95));
    border:1px solid var(--line);
  }
  .notdo h3{font-size:1.125rem;margin-bottom:14px;}
  .notdo-list{display:grid;gap:12px;}
  @media (min-width:640px){.notdo-list{grid-template-columns:repeat(3,1fr);}}
  .notdo-list li{
    display:flex;gap:10px;align-items:flex-start;
    padding:14px 16px;border-radius:var(--r-sm);
    background:rgba(255,255,255,.03);border:1px solid var(--line);
    font-size:.9rem;color:var(--text-2);
  }
  .notdo-list li i{
    width:8px;height:8px;border-radius:50%;flex:none;margin-top:9px;
    background:var(--primary-2);box-shadow:0 0 10px rgba(42,169,255,.6);
  }

  /* ---------- Steps strip ---------- */
  .strip{display:grid;gap:18px;margin-top:8px;}
  @media (min-width:768px){.strip{grid-template-columns:repeat(3,1fr);}}
  .strip-card{
    padding:24px;border-radius:var(--r-lg);
    background:var(--bg-1);border:1px solid var(--line);
    transition:border-color .24s,transform .24s;
  }
  .strip-card:hover{border-color:rgba(25,227,177,.3);transform:translateY(-4px);}
  .strip-num{
    font-size:28px;font-weight:800;color:var(--primary);
    font-variant-numeric:tabular-nums;letter-spacing:-.02em;display:block;margin-bottom:10px;
  }
  .strip-card h3{font-size:1.0625rem;margin-bottom:8px;}
  .strip-card p{font-size:.925rem;margin:0;}

  /* ---------- FAQ ---------- */
  .faq-list{display:grid;gap:12px;max-width:920px;}
  .faq-item{
    border-radius:var(--r-md);
    background:var(--bg-1);border:1px solid var(--line);
    overflow:hidden;transition:border-color .24s,background .24s;
  }
  .faq-item.open{border-color:rgba(25,227,177,.32);background:var(--bg-2);}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:18px 20px;background:none;border:0;text-align:left;
    font-size:1rem;font-weight:600;color:var(--text-1);min-height:56px;
  }
  .faq-q .sign{
    width:26px;height:26px;flex:none;border-radius:50%;
    display:flex;align-items:center;justify-content:center;
    border:1px solid rgba(25,227,177,.4);color:var(--primary);
    font-size:16px;line-height:1;transition:transform .2s,background .2s;
  }
  .faq-item.open .faq-q .sign{transform:rotate(180deg);background:rgba(25,227,177,.14);}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .26s ease;}
  .faq-a-inner{padding:0 20px 20px;border-left:3px solid transparent;transition:border-color .24s;}
  .faq-item.open .faq-a-inner{border-left-color:var(--primary);padding-left:17px;}
  .faq-a-inner p{font-size:.9375rem;margin:0;}

  /* ---------- Internal links ---------- */
  .pill-grid{display:grid;gap:16px;}
  @media (min-width:768px){.pill-grid{grid-template-columns:repeat(3,1fr);}}
  .pill-card{
    display:flex;align-items:center;justify-content:space-between;gap:14px;
    padding:20px 22px;border-radius:var(--pill);
    background:rgba(255,255,255,.04);border:1px solid var(--line);
    transition:transform .24s,border-color .24s,background .24s;
  }
  .pill-card:hover{border-color:rgba(25,227,177,.38);background:rgba(25,227,177,.08);transform:translateY(-3px);}
  .pill-card strong{font-size:.95rem;font-weight:600;color:var(--text-1);}
  .pill-card span{font-size:12.5px;color:var(--text-3);display:block;margin-top:2px;font-weight:400;}
  .pill-card .go{color:var(--primary);transition:transform .24s;flex:none;}
  .pill-card:hover .go{transform:translateX(4px);}

  /* ---------- CTA / form ---------- */
  .cta-band{position:relative;overflow:hidden;border-top:1px solid var(--line);background:var(--bg-1);}
  .cta-band::before{
    content:"";position:absolute;inset:0;
    background-image:url('/assets/images/backpic/back-1.webp');
    background-size:cover;background-position:center;opacity:.16;
  }
  .cta-inner{position:relative;z-index:2;display:grid;gap:32px;}
  @media (min-width:1024px){.cta-inner{grid-template-columns:5fr 7fr;gap:48px;align-items:start;}}
  .cta-notes{display:grid;gap:14px;margin-top:22px;}
  .cta-notes li{display:flex;gap:12px;font-size:.9375rem;color:var(--text-2);}
  .cta-notes li i{
    width:22px;height:22px;flex:none;border-radius:50%;margin-top:4px;
    display:flex;align-items:center;justify-content:center;
    background:rgba(25,227,177,.12);color:var(--primary);font-size:12px;font-style:normal;
  }

  .form-card{padding:26px;border-radius:var(--r-lg);}
  @media (min-width:768px){.form-card{padding:32px;}}
  .form-row{display:grid;gap:16px;}
  @media (min-width:640px){.form-row.two{grid-template-columns:1fr 1fr;}}
  .field{display:flex;flex-direction:column;gap:8px;margin-bottom:16px;}
  .field label{font-size:.875rem;color:var(--text-2);}
  .field input,.field select,.field textarea{
    width:100%;min-height:48px;padding:12px 14px;
    background:var(--bg-2);color:var(--text-1);
    border:1px solid rgba(255,255,255,.12);
    border-radius:var(--r-sm);font-size:.95rem;font-family:inherit;
    transition:border-color .2s,box-shadow .2s;
  }
  .field textarea{min-height:110px;resize:vertical;}
  .field input::placeholder,.field textarea::placeholder{color:var(--text-3);}
  .field input:focus,.field select:focus,.field textarea:focus{
    outline:none;border-color:var(--primary);
    box-shadow:0 0 0 4px rgba(25,227,177,.12);
  }
  .field.error input,.field.error select,.field.error textarea{
    border-color:var(--danger);box-shadow:0 0 0 4px rgba(255,77,94,.12);
  }
  .field .err-msg{font-size:12.5px;color:var(--danger);display:none;}
  .field.error .err-msg{display:block;}
  .check-row{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--text-3);margin:4px 0 18px;}
  .check-row input{width:18px;height:18px;accent-color:#19E3B1;margin-top:3px;flex:none;}
  .check-row a{color:var(--primary-2);text-decoration:underline;text-underline-offset:3px;}
  .form-tip{font-size:13px;color:var(--text-3);margin:14px 0 0;}
  .form-success{
    display:none;align-items:center;gap:12px;
    padding:14px 16px;border-radius:var(--r-sm);
    background:rgba(25,227,177,.10);border:1px solid rgba(25,227,177,.34);
    color:var(--primary);font-size:.9rem;margin-bottom:18px;
  }
  .form-success.show{display:flex;}
  .form-success i{
    width:22px;height:22px;border-radius:50%;flex:none;
    display:flex;align-items:center;justify-content:center;
    background:rgba(25,227,177,.2);font-style:normal;font-size:13px;
  }

  /* ---------- Footer ---------- */
  .site-footer{background:#04070D;border-top:1px solid var(--line);padding:56px 0 28px;margin-top:0;}
  .foot-grid{display:grid;gap:32px;}
  @media (min-width:640px){.foot-grid{grid-template-columns:repeat(2,1fr);}}
  @media (min-width:1024px){.foot-grid{grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px;}}
  .foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
  .foot-brand strong{font-size:15px;color:var(--text-1);}
  .foot-desc{font-size:.875rem;line-height:1.75;color:var(--text-3);margin:0;max-width:42ch;}
  .foot-col h3{font-size:14px;color:var(--text-1);margin-bottom:16px;letter-spacing:.02em;}
  .foot-list{display:flex;flex-direction:column;gap:10px;}
  .foot-list a,.foot-list span{font-size:.875rem;color:var(--text-3);}
  .foot-list a:hover{color:var(--primary);}
  .foot-bottom{
    margin-top:44px;padding-top:20px;border-top:1px solid var(--line);
    display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center;
    font-size:12.5px;color:var(--text-3);
  }
  .foot-bottom .links{display:flex;flex-wrap:wrap;gap:18px;}
  .foot-bottom .links a:hover{color:var(--primary);}

  /* ---------- Reveal ---------- */
  .reveal{opacity:0;transform:translateY(8px);transition:opacity .6s ease,transform .6s cubic-bezier(.4,0,.2,1);}
  .reveal.in{opacity:1;transform:none;}

  @media (prefers-reduced-motion:reduce){
    *{animation:none !important;transition:none !important;}
    .reveal{opacity:1;transform:none;}
    html{scroll-behavior:auto;}
  }

/* roulang page: category3 */
:root{
  --bg-0:#060A12;
  --bg-1:#0B1220;
  --bg-2:#101A2B;
  --primary:#19E3B1;
  --primary-2:#2AA9FF;
  --accent:#FF6A2B;
  --text-1:#E8F0FA;
  --text-2:#A6B6CC;
  --text-3:#6C7C93;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.14);
  --danger:#FF4D5E;
  --r-card:18px;
  --r-sm:14px;
  --r-input:12px;
  --r-pill:999px;
  --shadow-card:0 18px 50px rgba(0,0,0,.45);
  --shadow-float:0 24px 60px rgba(0,0,0,.55),0 0 32px rgba(25,227,177,.18);
  --ease:cubic-bezier(.4,0,.2,1);
  --font-cn:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"Inter",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body.page{
  margin:0;
  background:var(--bg-0);
  color:var(--text-1);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
.page img{max-width:100%;display:block;height:auto}
.page a{color:inherit;text-decoration:none}
.page button,.page input,.page select,.page textarea{font:inherit}
.page ul,.page ol{margin:0}
body.drawer-open{overflow:hidden}

.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:768px){.wrap{padding:0 32px}}

.num{font-family:var(--font-num);font-variant-numeric:tabular-nums}

.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--r-pill);
  font-size:.75rem;letter-spacing:.04em;line-height:1.6;
  color:var(--text-2);border:1px solid var(--line-strong);
  background:rgba(255,255,255,.03);white-space:nowrap;
}
.badge-primary{color:var(--primary);border-color:rgba(25,227,177,.4);background:rgba(25,227,177,.08)}
.badge-accent{color:#FFB08A;border-color:rgba(255,106,43,.45);background:rgba(255,106,43,.10)}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  background:rgba(6,10,18,.72);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid transparent;
  transition:background .28s var(--ease),border-color .28s var(--ease);
}
.site-header.is-scrolled{background:rgba(6,10,18,.95);border-bottom-color:var(--line)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:60px}
@media (min-width:1024px){.header-inner{height:72px}}

.brand{display:flex;align-items:center;gap:10px;flex:none}
.brand-mark{
  width:34px;height:34px;flex:none;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(135deg,#19E3B1,#2AA9FF);
  box-shadow:0 0 20px rgba(25,227,177,.35);
  clip-path:polygon(8px 0,100% 0,100% calc(100% - 8px),calc(100% - 8px) 100%,0 100%,0 8px);
}
.brand-mark svg{width:19px;height:19px}
.brand-text strong{display:block;font-size:1rem;font-weight:800;letter-spacing:-.01em;line-height:1.25}
.brand-text em{display:block;font-style:normal;font-size:.6875rem;color:var(--text-3);letter-spacing:.08em;line-height:1.3}

.nav-desktop{display:none}
@media (min-width:1024px){
  .nav-desktop{
    display:flex;align-items:center;gap:2px;padding:4px;
    border-radius:var(--r-pill);border:1px solid var(--line);
    background:rgba(255,255,255,.03);
  }
}
.nav-link{
  display:inline-flex;align-items:center;height:36px;padding:0 14px;
  border-radius:var(--r-pill);font-size:.875rem;color:var(--text-2);
  white-space:nowrap;transition:color .24s var(--ease),background .24s var(--ease),box-shadow .24s var(--ease);
}
.nav-link:hover{color:var(--text-1);background:rgba(255,255,255,.06)}
.nav-link.active{
  color:var(--primary);background:rgba(25,227,177,.12);
  box-shadow:inset 0 0 0 1px rgba(25,227,177,.35);
}

.header-right{display:flex;align-items:center;gap:10px}
.hamburger{
  width:44px;height:44px;flex:none;border:1px solid var(--line);border-radius:12px;
  background:rgba(255,255,255,.04);display:grid;place-items:center;gap:0;
  position:relative;transition:border-color .24s var(--ease),background .24s var(--ease);
}
.hamburger:hover{border-color:rgba(25,227,177,.35);background:rgba(25,227,177,.08)}
.hamburger span,.hamburger span::before,.hamburger span::after{
  content:"";display:block;width:18px;height:2px;border-radius:2px;background:var(--text-1);
  transition:transform .26s var(--ease),opacity .2s var(--ease);
}
.hamburger span{position:relative}
.hamburger span::before{position:absolute;top:-6px;left:0}
.hamburger span::after{position:absolute;top:6px;left:0}
.hamburger.is-open span{background:transparent}
.hamburger.is-open span::before{transform:translateY(6px) rotate(45deg)}
.hamburger.is-open span::after{transform:translateY(-6px) rotate(-45deg)}
@media (min-width:1024px){.hamburger{display:none}}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border:0;border-radius:var(--r-pill);
  font-size:.9375rem;font-weight:600;letter-spacing:.02em;
  cursor:pointer;text-align:center;
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),background .24s var(--ease),filter .24s var(--ease),color .24s var(--ease);
}
.btn-sm{min-height:40px;padding:0 18px;font-size:.875rem}
.btn-primary{
  background:linear-gradient(120deg,#FF7A3D,#FF4D2E);color:#0A0F18;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.25),0 10px 30px rgba(255,90,40,.35);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:inset 0 1px 0 rgba(255,255,255,.25),0 14px 42px rgba(255,90,40,.5)}
.btn-primary:active{transform:translateY(1px);box-shadow:inset 0 1px 0 rgba(255,255,255,.2),0 6px 18px rgba(255,90,40,.3)}
.btn-ghost{
  background:rgba(255,255,255,.05);color:var(--primary);
  box-shadow:inset 0 0 0 1px rgba(25,227,177,.4);
}
.btn-ghost:hover{background:rgba(25,227,177,.13);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-text{background:none;padding:0 4px;color:var(--text-2);min-height:auto}
.btn-text:hover{color:var(--primary)}

.page a:focus-visible,.page button:focus-visible,.page input:focus-visible,.page select:focus-visible,.page textarea:focus-visible{
  outline:2px solid var(--primary);outline-offset:2px;
}

/* ---------- mobile drawer ---------- */
.drawer-mask{
  position:fixed;inset:0;z-index:70;background:rgba(3,6,12,.7);
  -webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);
  opacity:0;visibility:hidden;transition:opacity .3s var(--ease),visibility .3s var(--ease);
}
.drawer-mask.open{opacity:1;visibility:visible}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;z-index:80;
  width:84vw;max-width:360px;padding:20px 20px 28px;
  display:flex;flex-direction:column;gap:6px;overflow-y:auto;
  background:linear-gradient(160deg,rgba(11,18,32,.98),rgba(6,10,18,.98));
  border-left:1px solid var(--line);
  transform:translateX(100%);
  transition:transform .32s var(--ease);
}
.mobile-drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:16px;border-bottom:1px solid var(--line)}
.drawer-close{
  width:44px;height:44px;flex:none;border-radius:12px;border:1px solid var(--line);
  background:rgba(255,255,255,.04);color:var(--text-1);font-size:1.25rem;line-height:1;cursor:pointer;
}
.drawer-nav{display:flex;flex-direction:column;gap:4px;padding:14px 0;border-bottom:1px solid var(--line)}
.drawer-link{
  display:flex;align-items:center;min-height:48px;padding:0 14px;border-radius:12px;
  color:var(--text-2);font-size:.9375rem;transition:background .2s var(--ease),color .2s var(--ease);
  opacity:0;transform:translateX(10px);
}
.mobile-drawer.open .drawer-link{opacity:1;transform:none;transition:opacity .3s var(--ease),transform .3s var(--ease),background .2s var(--ease),color .2s var(--ease)}
.mobile-drawer.open .drawer-link:nth-child(1){transition-delay:.04s}
.mobile-drawer.open .drawer-link:nth-child(2){transition-delay:.08s}
.mobile-drawer.open .drawer-link:nth-child(3){transition-delay:.12s}
.mobile-drawer.open .drawer-link:nth-child(4){transition-delay:.16s}
.mobile-drawer.open .drawer-link:nth-child(5){transition-delay:.2s}
.mobile-drawer.open .drawer-link:nth-child(6){transition-delay:.24s}
.drawer-link:hover{background:rgba(255,255,255,.05);color:var(--text-1)}
.drawer-link.active{color:var(--primary);background:rgba(25,227,177,.12);box-shadow:inset 0 0 0 1px rgba(25,227,177,.3)}
.drawer-foot{margin-top:auto;padding-top:20px;display:flex;flex-direction:column;gap:12px}
.drawer-foot p{margin:0;font-size:.8125rem;color:var(--text-3);line-height:1.7}

/* ---------- hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  padding:104px 0 60px;
  background-image:linear-gradient(180deg,rgba(6,10,18,.62),rgba(6,10,18,.96)),url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
}
.page-hero::after{
  content:"";position:absolute;left:-10%;top:10%;width:60vw;height:60vw;max-width:640px;max-height:640px;
  background:radial-gradient(circle,rgba(25,227,177,.16),transparent 62%);
  pointer-events:none;
}
@media (min-width:768px){.page-hero{padding:132px 0 84px}}
.hero-grid{position:relative;z-index:2;display:grid;gap:32px;grid-template-columns:1fr}
@media (min-width:1024px){.hero-grid{grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}}

.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:.8125rem;color:var(--text-3);margin-bottom:18px}
.crumb a{transition:color .2s var(--ease)}
.crumb a:hover{color:var(--primary)}
.crumb .sep{opacity:.55}
.crumb .current{color:var(--text-2)}

.hero-title{
  margin:16px 0 0;font-size:clamp(2rem,5.2vw,3.2rem);font-weight:800;
  letter-spacing:-.02em;line-height:1.2;
}
.hero-title .hl{
  background:linear-gradient(120deg,#19E3B1,#2AA9FF);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.lead{margin:18px 0 0;color:var(--text-2);font-size:1.0625rem;max-width:68ch}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-note{margin:16px 0 0;font-size:.8125rem;color:var(--text-3);display:flex;align-items:center;gap:8px}
.dot{width:8px;height:8px;border-radius:50%;background:var(--primary);box-shadow:0 0 12px rgba(25,227,177,.8);flex:none}

.hero-visual{
  position:relative;border-radius:20px;overflow:hidden;
  border:1px solid var(--line-strong);box-shadow:var(--shadow-card);
}
.hero-visual img{width:100%;aspect-ratio:16/10;object-fit:cover}
.hero-visual::after{
  content:"";position:absolute;inset:auto 0 0 0;height:42%;
  background:linear-gradient(180deg,transparent,rgba(6,10,18,.86));
}
.hero-visual .cap{
  position:absolute;left:18px;right:18px;bottom:16px;z-index:2;
  font-size:.8125rem;color:var(--text-2);
  display:flex;align-items:center;gap:8px;
}

/* ---------- sections ---------- */
.section{padding:64px 0}
@media (min-width:768px){.section{padding:96px 0}}
.section.alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section.grid-bg{
  background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:32px 32px;
}
.sec-head{max-width:760px;margin-bottom:36px}
@media (min-width:768px){.sec-head{margin-bottom:48px}}
.sec-head h2{
  margin:12px 0 0;font-size:clamp(1.5rem,3.2vw,2.25rem);font-weight:700;
  letter-spacing:-.015em;line-height:1.3;
}
.sec-head p{margin:14px 0 0;color:var(--text-2);max-width:68ch}

/* ---------- table ---------- */
.tbl-wrap{
  overflow-x:auto;border:1px solid var(--line);border-radius:16px;background:var(--bg-1);
  box-shadow:var(--shadow-card);
}
table.compat{width:100%;min-width:760px;border-collapse:collapse;font-size:.9375rem}
.compat caption{text-align:left;padding:16px 18px;color:var(--text-3);font-size:.8125rem}
.compat th{
  background:var(--bg-2);text-align:left;padding:14px 18px;
  font-size:.8125rem;font-weight:600;letter-spacing:.06em;color:var(--text-2);
  border-bottom:1px solid var(--line);white-space:nowrap;
}
.compat td{padding:15px 18px;border-bottom:1px solid var(--line);color:var(--text-2);vertical-align:top}
.compat td:first-child{color:var(--text-1);font-weight:600;white-space:nowrap}
.compat tbody tr{transition:background .2s var(--ease)}
.compat tbody tr:hover{background:rgba(25,227,177,.04)}
.compat tbody tr:last-child td{border-bottom:0}
.tbl-note{margin-top:14px;font-size:.8125rem;color:var(--text-3)}

/* ---------- cards ---------- */
.card-grid{display:grid;grid-template-columns:1fr;gap:20px}
@media (min-width:640px){.card-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.card-grid{grid-template-columns:repeat(4,1fr);gap:24px}}

.glass{
  position:relative;border-radius:var(--r-card);
  background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  border:1px solid rgba(255,255,255,.10);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow-card);
  transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.glass::before{
  content:"";position:absolute;top:0;left:16px;right:16px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.35),transparent);
  pointer-events:none;
}
.glass:hover{border-color:rgba(25,227,177,.35);transform:translateY(-4px);box-shadow:var(--shadow-float)}
.card-pad{padding:24px}

.ico{
  width:40px;height:40px;border-radius:12px;display:grid;place-items:center;flex:none;
  color:var(--primary);background:rgba(25,227,177,.10);
  box-shadow:inset 0 0 0 1px rgba(25,227,177,.25);
}
.ico svg{width:20px;height:20px}
.card-pad h3{margin:16px 0 0;font-size:1.125rem;font-weight:600;letter-spacing:-.01em}
.card-pad p{margin:10px 0 0;color:var(--text-2);font-size:.9375rem;line-height:1.75}
.card-meta{margin-top:16px;font-size:.8125rem;color:var(--text-3);display:flex;align-items:center;gap:8px}

/* ---------- checklist ---------- */
.split{display:grid;grid-template-columns:1fr;gap:28px}
@media (min-width:1024px){.split{grid-template-columns:.85fr 1.15fr;gap:40px;align-items:start}}
.sticky-note{position:relative}
@media (min-width:1024px){.sticky-note{position:sticky;top:104px}}

.checklist{list-style:none;padding:0;display:grid;gap:12px}
.checklist li{
  display:flex;gap:12px;align-items:flex-start;
  padding:16px 18px;border-radius:var(--r-sm);
  background:var(--bg-1);border:1px solid var(--line);
  color:var(--text-2);font-size:.9375rem;
  transition:border-color .24s var(--ease),background .24s var(--ease),transform .24s var(--ease);
}
.checklist li:hover{border-color:rgba(25,227,177,.32);background:rgba(25,227,177,.04);transform:translateY(-2px)}
.check-box{
  width:22px;height:22px;flex:none;margin-top:3px;border-radius:7px;
  display:grid;place-items:center;color:var(--primary);
  background:rgba(25,227,177,.14);box-shadow:inset 0 0 0 1px rgba(25,227,177,.45);
}
.check-box svg{width:13px;height:13px}
.checklist strong{color:var(--text-1);font-weight:600}

/* ---------- issue rows ---------- */
.issue-list{display:grid;gap:12px}
.issue-row{
  display:grid;grid-template-columns:1fr;gap:8px;
  padding:20px 22px;border-radius:var(--r-sm);
  background:var(--bg-1);border:1px solid var(--line);
  transition:border-color .24s var(--ease),transform .24s var(--ease);
}
@media (min-width:768px){.issue-row{grid-template-columns:.9fr 1.1fr;gap:24px;align-items:center}}
.issue-row:hover{border-color:rgba(42,169,255,.35);transform:translateY(-2px)}
.issue-row .q{color:var(--text-1);font-weight:600;display:flex;align-items:flex-start;gap:10px}
.issue-row .q .num-tag{
  font-family:var(--font-num);font-size:.8125rem;color:var(--accent);
  box-shadow:inset 0 0 0 1px rgba(255,106,43,.45);border-radius:999px;
  padding:1px 10px;flex:none;margin-top:3px;
}
.issue-row .a{color:var(--text-2);font-size:.9375rem}

/* ---------- pills ---------- */
.pill-grid{display:grid;grid-template-columns:1fr;gap:16px}
@media (min-width:768px){.pill-grid{grid-template-columns:repeat(3,1fr)}}
.pill-card{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:20px;border-radius:16px;border:1px solid var(--line);background:var(--bg-1);
  transition:border-color .24s var(--ease),background .24s var(--ease),transform .24s var(--ease);
}
.pill-card:hover{border-color:rgba(25,227,177,.4);background:rgba(25,227,177,.05);transform:translateY(-3px)}
.pill-card .t{font-weight:600;display:block}
.pill-card .d{display:block;font-size:.8125rem;color:var(--text-3);margin-top:4px}
.pill-card .arrow{color:var(--primary);transition:transform .24s var(--ease);flex:none}
.pill-card:hover .arrow{transform:translateX(4px)}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:12px;max-width:900px}
.faq-item{border:1px solid var(--line);border-radius:16px;background:var(--bg-1);overflow:hidden;transition:border-color .24s var(--ease),background .24s var(--ease)}
.faq-item.open{border-color:rgba(25,227,177,.35);background:rgba(25,227,177,.03)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;min-height:56px;background:none;border:0;color:var(--text-1);
  font-size:1rem;font-weight:600;text-align:left;cursor:pointer;
}
.faq-icon{
  width:26px;height:26px;flex:none;display:grid;place-items:center;
  color:var(--primary);font-size:1.25rem;line-height:1;transition:transform .2s var(--ease);
}
.faq-item.open .faq-icon{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .26s var(--ease)}
.faq-a .inner{
  margin:0 22px 20px;padding-left:16px;border-left:3px solid var(--primary);
  color:var(--text-2);font-size:.9375rem;line-height:1.85;
}

/* ---------- cta ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:24px;
  padding:40px 24px;
  background:linear-gradient(135deg,rgba(25,227,177,.12),rgba(42,169,255,.08));
  border:1px solid rgba(25,227,177,.25);
  box-shadow:var(--shadow-card);
}
@media (min-width:768px){.cta-band{padding:56px 48px}}
.cta-band::after{
  content:"";position:absolute;right:-60px;bottom:-80px;width:280px;height:280px;border-radius:50%;
  border:1px solid rgba(42,169,255,.28);pointer-events:none;
}
.cta-inner{position:relative;z-index:2;display:grid;gap:24px;grid-template-columns:1fr}
@media (min-width:1024px){.cta-inner{grid-template-columns:1.2fr .8fr;align-items:center;gap:40px}}
.cta-inner h2{margin:0;font-size:clamp(1.4rem,3vw,2rem);font-weight:700;letter-spacing:-.015em;line-height:1.35}
.cta-inner p{margin:14px 0 0;color:var(--text-2);max-width:60ch}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
.cta-fine{margin-top:14px;font-size:.8125rem;color:var(--text-3)}

/* ---------- modal ---------- */
.modal-mask{
  position:fixed;inset:0;z-index:120;display:none;
  align-items:center;justify-content:center;padding:16px;
  background:rgba(3,6,12,.72);
  -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
}
.modal-mask.open{display:flex}
.modal-card{
  width:100%;max-width:520px;max-height:90vh;overflow-y:auto;
  padding:26px;border-radius:20px;position:relative;
  background:linear-gradient(160deg,rgba(16,26,43,.99),rgba(11,18,32,.99));
  border:1px solid var(--line-strong);box-shadow:var(--shadow-float);
  animation:pop .26s var(--ease);
}
@keyframes pop{from{opacity:0;transform:translateY(12px) scale(.98)}to{opacity:1;transform:none}}
.modal-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:8px}
.modal-head h2{margin:0;font-size:1.25rem;font-weight:700}
.modal-head p{margin:8px 0 0;font-size:.875rem;color:var(--text-3)}
.modal-close{
  width:44px;height:44px;flex:none;border-radius:12px;border:1px solid var(--line);
  background:rgba(255,255,255,.04);color:var(--text-1);font-size:1.25rem;cursor:pointer;
  display:grid;place-items:center;transition:border-color .2s var(--ease),background .2s var(--ease);
}
.modal-close:hover{border-color:rgba(25,227,177,.4);background:rgba(25,227,177,.08)}

.field{margin-bottom:16px}
.field label{display:block;font-size:.875rem;color:var(--text-2);margin-bottom:8px}
.input{
  width:100%;height:48px;padding:0 14px;border-radius:var(--r-input);
  background:var(--bg-2);border:1px solid var(--line);color:var(--text-1);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
textarea.input{height:auto;min-height:104px;padding:12px 14px;resize:vertical;line-height:1.7}
select.input{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--text-3) 50%),linear-gradient(135deg,var(--text-3) 50%,transparent 50%);background-position:calc(100% - 20px) 22px,calc(100% - 14px) 22px;background-size:6px 6px,6px 6px;background-repeat:no-repeat}
.input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 4px rgba(25,227,177,.12)}
.input.err{border-color:var(--danger);box-shadow:0 0 0 4px rgba(255,77,94,.12)}
.err-text{display:none;margin-top:6px;font-size:.8125rem;color:var(--danger)}
.err-text.show{display:block}
.checkline{display:flex;gap:10px;align-items:flex-start;font-size:.8125rem;color:var(--text-3);margin:4px 0 18px;line-height:1.7}
.checkline input{margin-top:3px;width:16px;height:16px;accent-color:#19E3B1;flex:none}
.checkline a{color:var(--primary);text-decoration:underline;text-underline-offset:3px}
.form-ok{display:none;text-align:center;padding:28px 8px}
.form-ok.show{display:block}
.ok-ring{
  width:64px;height:64px;margin:0 auto 18px;border-radius:50%;display:grid;place-items:center;
  color:var(--primary);background:rgba(25,227,177,.12);box-shadow:0 0 32px rgba(25,227,177,.3);
}
.form-ok h3{margin:0;font-size:1.125rem}
.form-ok p{margin:10px 0 20px;color:var(--text-2);font-size:.9375rem}

/* ---------- footer ---------- */
.site-footer{background:#050810;border-top:1px solid var(--line);padding:64px 0 28px;color:var(--text-2)}
.foot-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media (min-width:768px){.foot-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.foot-grid{grid-template-columns:1.4fr 1fr 1fr 1fr}}
.foot-brand{display:flex;align-items:center;gap:10px}
.foot-brand strong{font-size:1rem;font-weight:700;color:var(--text-1)}
.foot-desc{margin:14px 0 0;font-size:.875rem;color:var(--text-3);line-height:1.85;max-width:38ch}
.foot-col h3{margin:0 0 14px;font-size:.9375rem;font-weight:600;color:var(--text-1)}
.foot-list{display:flex;flex-direction:column;gap:10px;font-size:.875rem}
.foot-list a,.foot-list span{color:var(--text-3);transition:color .2s var(--ease),transform .2s var(--ease)}
.foot-list a{display:inline-block}
.foot-list a:hover{color:var(--primary);transform:translateX(3px)}
.foot-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:.8125rem;color:var(--text-3);
}
.foot-bottom .links{display:flex;flex-wrap:wrap;gap:18px}
.foot-bottom a:hover{color:var(--primary)}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(8px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.reveal.in{opacity:1;transform:none}

@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}