/* roulang page: index */
:root{
  --bg:#050B14;
  --bg-2:#081426;
  --panel:rgba(10,28,50,.58);
  --panel-2:rgba(8,22,40,.82);
  --panel-solid:#0A1B2E;
  --border:rgba(96,214,255,.18);
  --border-2:rgba(96,214,255,.34);
  --text:#EAF4FF;
  --text-2:#9FB4CC;
  --text-3:#6E8199;
  --cyan:#35E7D2;
  --cyan-deep:#0F8F84;
  --amber:#FFB45E;
  --ok:#4ADE80;
  --warn:#FBBF24;
  --err:#FB7185;
  --r-s:10px;
  --r-m:16px;
  --r-l:24px;
  --r-pill:999px;
  --sh-1:0 8px 24px rgba(0,0,0,.28);
  --sh-2:0 20px 60px rgba(0,0,0,.35);
  --sh-3:0 30px 120px rgba(0,0,0,.45);
  --glow:0 0 0 1px rgba(53,231,210,.35), 0 12px 40px rgba(53,231,210,.22);
  --gap:24px;
  --sec:104px;
  --wrap:1240px;
  --font:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  font-size:1rem;
  line-height:1.75;
  font-weight:400;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:
    radial-gradient(900px 520px at 12% -6%, rgba(53,231,210,.14), transparent 62%),
    radial-gradient(760px 460px at 92% 8%, rgba(255,180,94,.10), transparent 64%),
    linear-gradient(180deg,#050B14 0%,#061020 46%,#050B14 100%);
}
body::after{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  opacity:.5;
  background-image:
    linear-gradient(rgba(96,214,255,.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(96,214,255,.055) 1px, transparent 1px);
  background-size:96px 96px;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--text);text-decoration:none;transition:color .22s ease,border-color .22s ease,opacity .22s ease}
a:hover{color:var(--cyan)}
h1,h2,h3,h4{margin:0;color:var(--text);font-weight:800;line-height:1.15;letter-spacing:-.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 24px;position:relative;z-index:2}
.section{padding:var(--sec) 0;position:relative;z-index:2}
.section--tight{padding-top:64px}
.section-head{max-width:760px;margin-bottom:48px}
.section-head--center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.8125rem;letter-spacing:.14em;font-weight:600;
  color:var(--cyan);text-transform:uppercase;
  padding:6px 14px;border-radius:var(--r-pill);
  background:rgba(53,231,210,.08);
  border:1px solid rgba(53,231,210,.28);
  margin-bottom:20px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--cyan);box-shadow:0 0 12px var(--cyan)}
.section-title{font-size:clamp(1.8rem,3.2vw,2.8rem);margin-bottom:16px}
.section-desc{color:var(--text-2);font-size:1.0625rem;line-height:1.85;max-width:680px}
.section-head--center .section-desc{margin-left:auto;margin-right:auto}
.text-amber{color:var(--amber)}

/* ============ 按钮 ============ */
.btn-glow,.btn-glass,.btn-glow-sm,.btn-glass-sm{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  border-radius:var(--r-pill);
  font-weight:700;
  cursor:pointer;
  border:1px solid transparent;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,color .22s ease,border-color .22s ease;
  white-space:nowrap;
}
.btn-glow{
  padding:15px 34px;font-size:1rem;
  color:#022C28;
  background:linear-gradient(135deg,#35E7D2 0%,#12A69A 100%);
  box-shadow:var(--glow);
}
.btn-glow:hover{transform:translateY(-2px);filter:brightness(1.08);color:#022C28;box-shadow:0 0 0 1px rgba(53,231,210,.5),0 18px 52px rgba(53,231,210,.34)}
.btn-glow:active{transform:translateY(0)}
.btn-glass{
  padding:15px 30px;font-size:1rem;color:var(--text);
  background:rgba(10,28,50,.5);
  border-color:var(--border-2);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.btn-glass:hover{color:var(--cyan);border-color:rgba(53,231,210,.6);transform:translateY(-2px);box-shadow:0 14px 40px rgba(0,0,0,.35)}
.btn-glow-sm{padding:10px 22px;font-size:.875rem;color:#022C28;background:linear-gradient(135deg,#35E7D2,#12A69A);box-shadow:0 0 0 1px rgba(53,231,210,.3),0 8px 26px rgba(53,231,210,.2)}
.btn-glow-sm:hover{color:#022C28;transform:translateY(-1px);filter:brightness(1.08)}
.btn-glass-sm{padding:9px 20px;font-size:.875rem;color:var(--text-2);background:rgba(10,28,50,.42);border-color:var(--border)}
.btn-glass-sm:hover{color:var(--cyan);border-color:rgba(53,231,210,.55)}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:rgba(5,11,20,.62);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid rgba(96,214,255,.12);
  transition:background .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.site-header.is-scrolled{
  background:rgba(4,9,17,.9);
  border-bottom-color:rgba(96,214,255,.22);
  box-shadow:0 14px 40px rgba(0,0,0,.45);
}
.nav-inner{
  display:flex;align-items:center;gap:28px;
  max-width:1320px;margin:0 auto;padding:14px 24px;
  position:relative;z-index:2;
}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand-mark{
  width:38px;height:38px;border-radius:12px;
  display:grid;place-items:center;
  background:linear-gradient(140deg,rgba(53,231,210,.9),rgba(15,80,110,.9));
  box-shadow:0 0 0 1px rgba(53,231,210,.35),0 10px 28px rgba(53,231,210,.22);
  position:relative;overflow:hidden;
}
.brand-mark::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(160deg,transparent 42%,rgba(255,180,94,.75) 100%);
  opacity:.75;
}
.brand-mark span{position:relative;z-index:2;font-weight:900;font-size:1rem;color:#04211F;letter-spacing:-.04em}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-name{font-weight:800;font-size:1.0625rem;letter-spacing:.01em;color:var(--text)}
.brand-tag{font-size:.6875rem;color:var(--text-3);letter-spacing:.12em}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:8px}
.nav-link{
  position:relative;
  padding:10px 14px;border-radius:var(--r-s);
  font-size:.9375rem;font-weight:600;color:var(--text-2);
  transition:color .22s ease,background .22s ease;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--cyan),rgba(53,231,210,0));
  transform:scaleX(0);transform-origin:left;transition:transform .26s ease;
  box-shadow:0 0 12px rgba(53,231,210,.8);
}
.nav-link:hover{color:var(--text);background:rgba(53,231,210,.05)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:var(--cyan)}
.nav-link.active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.search-box{
  display:flex;align-items:center;gap:8px;
  padding:9px 16px;border-radius:var(--r-pill);
  background:rgba(10,28,50,.55);
  border:1px solid var(--border);
  transition:border-color .22s ease,box-shadow .22s ease;
  min-width:224px;
}
.search-box:focus-within{border-color:rgba(53,231,210,.55);box-shadow:0 0 0 3px rgba(53,231,210,.12)}
.search-box svg{width:15px;height:15px;stroke:var(--text-3);flex-shrink:0}
.search-box input{
  background:transparent;border:0;outline:none;color:var(--text);
  font-size:.875rem;width:100%;font-family:inherit;
}
.search-box input::placeholder{color:var(--text-3)}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  background:rgba(10,28,50,.6);border:1px solid var(--border);
  align-items:center;justify-content:center;cursor:pointer;flex-direction:column;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text);transition:transform .25s ease,opacity .25s ease}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.drawer{
  position:fixed;inset:0;z-index:999;
  background:rgba(3,8,15,.96);
  backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
  padding:96px 24px 40px;
  display:flex;flex-direction:column;gap:6px;
  transform:translateY(-12px);opacity:0;visibility:hidden;
  transition:opacity .26s ease,transform .26s ease,visibility .26s;
  overflow-y:auto;
}
.drawer.open{opacity:1;visibility:visible;transform:translateY(0)}
.drawer .nav-link{display:block;padding:16px 18px;font-size:1.0625rem;border-bottom:1px solid rgba(96,214,255,.1);border-radius:0}
.drawer .nav-link::after{display:none}
.drawer-actions{display:flex;flex-direction:column;gap:12px;margin-top:28px}
.drawer-actions .btn-glow,.drawer-actions .btn-glass{width:100%}
.drawer-search{display:flex;align-items:center;gap:8px;padding:12px 18px;border-radius:var(--r-pill);background:rgba(10,28,50,.7);border:1px solid var(--border);margin-bottom:18px}
.drawer-search input{background:transparent;border:0;outline:none;color:var(--text);width:100%;font-family:inherit;font-size:.9375rem}
.drawer-search input::placeholder{color:var(--text-3)}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;
  padding:96px 0 88px;
  border-bottom:1px solid rgba(96,214,255,.1);
}
.hero-bg{
  position:absolute;inset:0;z-index:0;
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
  opacity:.3;
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(5,11,20,.96) 0%,rgba(5,11,20,.82) 46%,rgba(5,11,20,.62) 100%);
}
.hero-grid{
  display:grid;grid-template-columns:minmax(0,1.08fr) minmax(0,.92fr);
  gap:64px;align-items:center;
}
.hero-title{
  font-size:clamp(2.4rem,5vw,4.2rem);
  line-height:1.12;margin:18px 0 22px;letter-spacing:-.02em;
}
.hero-title em{font-style:normal;color:var(--cyan);position:relative;white-space:nowrap}
.hero-title em::after{
  content:"";position:absolute;left:0;right:0;bottom:6px;height:8px;border-radius:4px;
  background:linear-gradient(90deg,rgba(53,231,210,.26),rgba(53,231,210,0));
  z-index:-1;
}
.hero-sub{color:var(--text-2);font-size:1.125rem;line-height:1.85;max-width:600px}
.hero-cta{display:flex;flex-wrap:wrap;gap:16px;margin-top:36px}
.hero-note{display:flex;flex-wrap:wrap;gap:20px;margin-top:32px;color:var(--text-3);font-size:.875rem}
.hero-note span{display:inline-flex;align-items:center;gap:8px}
.hero-note span::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--amber);box-shadow:0 0 10px rgba(255,180,94,.8)}
.hero-card{
  position:relative;
  border-radius:var(--r-l);
  background:var(--panel);
  border:1px solid var(--border);
  box-shadow:var(--sh-2),inset 0 1px 0 rgba(255,255,255,.06);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  padding:28px;
  overflow:hidden;
}
.hero-card::before{
  content:"";position:absolute;top:-40%;right:-30%;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(53,231,210,.22),transparent 68%);
  pointer-events:none;
}
.hero-card-head{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-bottom:18px;border-bottom:1px solid rgba(96,214,255,.14);position:relative;z-index:2}
.hero-card-head h2{font-size:1rem;font-weight:700;letter-spacing:.02em}
.hero-card-head .dot{display:inline-flex;align-items:center;gap:7px;font-size:.75rem;color:var(--ok);font-weight:600}
.hero-card-head .dot::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--ok);box-shadow:0 0 10px var(--ok)}
.hero-list{position:relative;z-index:2;margin-top:8px}
.hero-list li{
  display:flex;align-items:flex-start;gap:14px;padding:16px 0;
  border-bottom:1px dashed rgba(96,214,255,.14);
}
.hero-list li:last-child{border-bottom:0;padding-bottom:0}
.hero-list .idx{
  flex-shrink:0;width:30px;height:30px;border-radius:10px;
  display:grid;place-items:center;font-size:.8125rem;font-weight:800;color:var(--cyan);
  background:rgba(53,231,210,.1);border:1px solid rgba(53,231,210,.28);
}
.hero-list .txt strong{display:block;font-size:.9375rem;font-weight:700;margin-bottom:4px}
.hero-list .txt span{font-size:.8125rem;color:var(--text-3);line-height:1.65}
.hero-strip{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:1px;margin-top:72px;
  border-radius:var(--r-m);overflow:hidden;
  border:1px solid var(--border);
  background:rgba(96,214,255,.14);
}
.hero-strip .cell{
  background:rgba(8,20,38,.86);padding:24px 22px;
  transition:background .25s ease;
}
.hero-strip .cell:hover{background:rgba(12,30,52,.94)}
.hero-strip .num{font-size:1.75rem;font-weight:800;color:var(--cyan);letter-spacing:-.02em;line-height:1.2}
.hero-strip .num.amber{color:var(--amber)}
.hero-strip .lbl{margin-top:6px;font-size:.8125rem;color:var(--text-3)}

/* ============ 能力板块 ============ */
.feature-grid{
  display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);
  gap:24px;
}
.feature-main{
  position:relative;overflow:hidden;
  border-radius:var(--r-l);
  border:1px solid var(--border);
  background:var(--panel);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  box-shadow:var(--sh-2);
  padding:0;
  display:flex;flex-direction:column;
}
.feature-main .cover{position:relative;aspect-ratio:16/9;overflow:hidden}
.feature-main .cover img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.feature-main:hover .cover img{transform:scale(1.04)}
.feature-main .cover::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,11,20,.1),rgba(5,11,20,.86))}
.feature-main .body{padding:28px 30px 32px}
.feature-main h3{font-size:1.5rem;margin:14px 0 12px}
.feature-main p{color:var(--text-2);line-height:1.85}
.feature-main ul{margin-top:20px;display:grid;gap:10px}
.feature-main ul li{display:flex;gap:10px;color:var(--text-2);font-size:.9375rem}
.feature-main ul li::before{content:"";flex-shrink:0;width:7px;height:7px;margin-top:9px;border-radius:2px;background:var(--amber)}
.feature-side{display:grid;gap:24px;grid-template-rows:repeat(2,minmax(0,1fr))}
.card-glass{
  border-radius:var(--r-m);
  background:var(--panel);
  border:1px solid var(--border);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  box-shadow:var(--sh-1),inset 0 1px 0 rgba(255,255,255,.06);
  padding:26px;
  transition:transform .26s ease,border-color .26s ease,box-shadow .26s ease;
}
.card-glass:hover{transform:translateY(-4px);border-color:var(--border-2);box-shadow:var(--sh-2)}
.card-glass .icon{
  width:46px;height:46px;border-radius:14px;display:grid;place-items:center;
  background:rgba(53,231,210,.1);border:1px solid rgba(53,231,210,.3);
  color:var(--cyan);font-weight:800;font-size:1rem;margin-bottom:16px;
}
.card-glass .icon.amber{background:rgba(255,180,94,.1);border-color:rgba(255,180,94,.34);color:var(--amber)}
.card-glass h3{font-size:1.1875rem;margin-bottom:10px}
.card-glass p{color:var(--text-2);font-size:.9375rem;line-height:1.8}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.badge{
  display:inline-flex;align-items:center;
  padding:5px 12px;border-radius:var(--r-pill);
  font-size:.75rem;font-weight:600;letter-spacing:.02em;
}
.badge-cyan{color:var(--cyan);background:rgba(53,231,210,.1);border:1px solid rgba(53,231,210,.28)}
.badge-amber{color:var(--amber);background:rgba(255,180,94,.1);border:1px solid rgba(255,180,94,.3)}
.badge-time{color:var(--text-3);background:rgba(110,129,153,.12);border:1px solid rgba(110,129,153,.26)}

/* ============ 故事区 ============ */
.story{
  display:grid;grid-template-columns:minmax(0,.92fr) minmax(0,1.08fr);
  gap:64px;align-items:center;
}
.story-media{position:relative;border-radius:var(--r-l);overflow:hidden;border:1px solid var(--border);box-shadow:var(--sh-2)}
.story-media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.story-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,11,20,0) 40%,rgba(5,11,20,.78))}
.story-media .caption{
  position:absolute;left:22px;right:22px;bottom:20px;z-index:2;
  font-size:.875rem;color:var(--text-2);
  display:flex;align-items:center;gap:10px;
}
.story-media .caption::before{content:"";width:22px;height:1px;background:var(--cyan)}
.story-body p{color:var(--text-2);line-height:1.9;margin-bottom:18px}
.story-body p:last-of-type{margin-bottom:0}
.milestone{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin-top:36px}
.milestone .ms{padding:20px;border-radius:var(--r-m);background:rgba(10,28,50,.5);border:1px solid var(--border)}
.milestone .ms strong{display:block;font-size:1.0625rem;color:var(--cyan);margin-bottom:6px}
.milestone .ms span{font-size:.8125rem;color:var(--text-3);line-height:1.7;display:block}

/* ============ 精选内容 ============ */
.pick-grid{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,.75fr);gap:24px}
.pick-main{
  border-radius:var(--r-l);overflow:hidden;position:relative;
  border:1px solid var(--border);box-shadow:var(--sh-2);
  background:var(--panel-2);
  display:flex;flex-direction:column;
}
.pick-main img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .6s ease}
.pick-main:hover img{transform:scale(1.03)}
.pick-main .body{padding:30px 32px 34px}
.pick-main h3{font-size:1.625rem;margin:14px 0 12px;line-height:1.3}
.pick-main p{color:var(--text-2);line-height:1.85}
.pick-side{display:grid;gap:24px}
.pick-item{
  display:grid;grid-template-columns:120px minmax(0,1fr);gap:18px;align-items:center;
  padding:16px;border-radius:var(--r-m);
  background:var(--panel);border:1px solid var(--border);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  transition:transform .26s ease,border-color .26s ease,box-shadow .26s ease;
}
.pick-item:hover{transform:translateY(-4px);border-color:var(--border-2);box-shadow:var(--sh-1)}
.pick-item .thumb{border-radius:var(--r-s);overflow:hidden;aspect-ratio:4/3}
.pick-item .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.pick-item:hover .thumb img{transform:scale(1.06)}
.pick-item h4{font-size:1rem;line-height:1.5;margin:8px 0 6px;font-weight:700}
.pick-item p{font-size:.8125rem;color:var(--text-3);line-height:1.7}

/* ============ 最新信息 ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.news-card{
  display:flex;flex-direction:column;
  border-radius:var(--r-m);overflow:hidden;
  background:var(--panel);border:1px solid var(--border);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  box-shadow:var(--sh-1);
  transition:transform .26s ease,border-color .26s ease,box-shadow .26s ease;
}
.news-card:hover{transform:translateY(-4px);border-color:var(--border-2);box-shadow:var(--sh-2)}
.news-cover{position:relative;aspect-ratio:16/10;overflow:hidden}
.news-cover img{width:100%;height:100%;object-fit:cover;transition:transform .55s ease}
.news-card:hover .news-cover img{transform:scale(1.04)}
.news-cover::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,11,20,.05),rgba(5,11,20,.6))}
.news-cover .badge{position:absolute;left:14px;top:14px;z-index:2;background:rgba(6,18,32,.78);backdrop-filter:blur(10px);color:var(--cyan)}
.news-body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1}
.news-title{font-size:1.0625rem;line-height:1.55;margin-bottom:10px}
.news-title a{color:var(--text)}
.news-title a:hover{color:var(--cyan)}
.news-excerpt{font-size:.875rem;color:var(--text-2);line-height:1.8;margin-bottom:18px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.news-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:16px;border-top:1px solid rgba(96,214,255,.12)}
.news-link{font-size:.8125rem;font-weight:700;color:var(--cyan);display:inline-flex;align-items:center;gap:6px}
.news-link::after{content:"→";transition:transform .22s ease}
.news-link:hover{color:var(--amber)}
.news-link:hover::after{transform:translateX(4px)}
.empty-state{
  border-radius:var(--r-l);padding:64px 32px;text-align:center;
  background:var(--panel);border:1px dashed var(--border-2);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
}
.empty-state .ico{
  width:58px;height:58px;margin:0 auto 20px;border-radius:18px;display:grid;place-items:center;
  background:rgba(53,231,210,.08);border:1px solid rgba(53,231,210,.26);
  font-size:1.5rem;color:var(--cyan);
}
.empty-state h3{font-size:1.1875rem;margin-bottom:10px}
.empty-state p{color:var(--text-3);font-size:.9375rem;margin-bottom:22px}

/* ============ 信任背书 ============ */
.trust{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);gap:56px;align-items:center}
.trust-list{display:grid;gap:1px;background:rgba(96,214,255,.14);border-radius:var(--r-m);overflow:hidden;border:1px solid var(--border)}
.trust-list .row-item{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:20px 24px;background:rgba(8,20,38,.88);transition:background .25s ease}
.trust-list .row-item:hover{background:rgba(12,30,52,.96)}
.trust-list .row-item strong{font-size:1.5rem;color:var(--cyan);font-weight:800;letter-spacing:-.02em}
.trust-list .row-item strong.amber{color:var(--amber)}
.trust-list .row-item span{font-size:.875rem;color:var(--text-2);text-align:right}
.logo-wall{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:1px;
  background:rgba(96,214,255,.12);border-radius:var(--r-m);overflow:hidden;
  border:1px solid var(--border);margin-top:28px;
}
.logo-wall .logo-cell{
  background:rgba(8,20,38,.86);padding:22px 16px;text-align:center;
  font-size:.875rem;font-weight:700;color:var(--text-3);letter-spacing:.02em;
  transition:color .25s ease,background .25s ease;
}
.logo-wall .logo-cell:hover{color:var(--cyan);background:rgba(12,30,52,.96)}
.quote-card{
  margin-top:28px;padding:26px 28px;border-radius:var(--r-m);
  background:var(--panel);border:1px solid var(--border);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
}
.quote-card blockquote{margin:0 0 14px;color:var(--text-2);line-height:1.9;font-size:.9375rem;border-left:2px solid var(--amber);padding-left:16px}
.quote-card .who{font-size:.8125rem;color:var(--text-3)}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:14px;max-width:900px;margin:0 auto}
.faq-item{
  border-radius:var(--r-m);
  background:var(--panel);border:1px solid var(--border);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  overflow:hidden;position:relative;
  transition:border-color .25s ease;
}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:linear-gradient(180deg,var(--cyan),rgba(53,231,210,0));
  opacity:0;transition:opacity .28s ease;
}
.faq-item.open{border-color:var(--border-2)}
.faq-item.open::before{opacity:1}
.faq-q{
  width:100%;background:transparent;border:0;cursor:pointer;
  display:flex;align-items:center;gap:16px;
  padding:22px 26px;text-align:left;color:var(--text);
  font-size:1.0625rem;font-weight:700;line-height:1.6;
}
.faq-q .mark{
  flex-shrink:0;width:28px;height:28px;border-radius:50%;
  display:grid;place-items:center;font-size:.875rem;font-weight:800;
  color:var(--cyan);background:rgba(53,231,210,.1);border:1px solid rgba(53,231,210,.3);
}
.faq-q .arrow{margin-left:auto;flex-shrink:0;width:10px;height:10px;border-right:2px solid var(--text-3);border-bottom:2px solid var(--text-3);transform:rotate(45deg);transition:transform .28s ease,border-color .28s ease}
.faq-item.open .faq-q .arrow{transform:rotate(-135deg);border-color:var(--cyan)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .34s ease}
.faq-a p{padding:0 26px 24px 70px;color:var(--text-2);line-height:1.9;font-size:.9375rem}

/* ============ CTA ============ */
.cta-panel{
  border-radius:var(--r-l);overflow:hidden;position:relative;
  border:1px solid var(--border);
  background:var(--panel);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  box-shadow:var(--sh-3);
  padding:56px;
}
.cta-panel::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-3.png");
  background-size:cover;background-position:center;
  opacity:.16;
}
.cta-panel::after{
  content:"";position:absolute;top:-160px;right:-120px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,180,94,.2),transparent 66%);
}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:56px;align-items:center}
.cta-inner h2{font-size:clamp(1.8rem,3.2vw,2.4rem);margin-bottom:16px}
.cta-inner p{color:var(--text-2);line-height:1.9;margin-bottom:26px}
.cta-points{display:grid;gap:12px}
.cta-points li{display:flex;gap:10px;color:var(--text-2);font-size:.9375rem}
.cta-points li::before{content:"";flex-shrink:0;width:7px;height:7px;margin-top:9px;border-radius:2px;background:var(--cyan)}
.form-glass{
  position:relative;z-index:2;
  border-radius:var(--r-m);
  background:rgba(6,16,30,.72);
  border:1px solid var(--border);
  padding:28px;
}
.form-glass .field{margin-bottom:16px}
.form-glass label{display:block;font-size:.8125rem;color:var(--text-3);margin-bottom:8px;font-weight:600}
.form-glass input,.form-glass select{
  width:100%;padding:13px 16px;border-radius:var(--r-s);
  background:rgba(4,10,20,.86);
  border:1px solid var(--border);
  color:var(--text);font-size:.9375rem;font-family:inherit;
  transition:border-color .22s ease,box-shadow .22s ease;
}
.form-glass input::placeholder{color:var(--text-3)}
.form-glass input:focus,.form-glass select:focus{
  outline:none;border-color:rgba(53,231,210,.6);box-shadow:0 0 0 3px rgba(53,231,210,.14);
}
.form-glass .btn-glow{width:100%;margin-top:6px}
.form-hint{font-size:.75rem;color:var(--text-3);line-height:1.7;margin-top:14px}
.form-msg{margin-top:14px;font-size:.8125rem;color:var(--ok);display:none}
.form-msg.show{display:block}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;z-index:2;
  background:rgba(4,9,17,.92);
  border-top:1px solid rgba(96,214,255,.14);
  padding:68px 0 0;
  margin-top:24px;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr 1fr;gap:40px}
.footer-brand .brand{margin-bottom:18px}
.footer-brand p{font-size:.875rem;color:var(--text-3);line-height:1.85;max-width:280px}
.footer-col h4{font-size:.9375rem;font-weight:700;margin-bottom:18px;color:var(--text)}
.footer-col ul{display:grid;gap:11px}
.footer-col a{font-size:.875rem;color:var(--text-3)}
.footer-col a:hover{color:var(--cyan)}
.footer-sub{margin-top:16px;display:flex;gap:8px}
.footer-sub input{
  flex:1;min-width:0;padding:10px 14px;border-radius:var(--r-s);
  background:rgba(4,10,20,.86);border:1px solid var(--border);color:var(--text);
  font-size:.8125rem;font-family:inherit;outline:none;
}
.footer-sub input:focus{border-color:rgba(53,231,210,.55);box-shadow:0 0 0 3px rgba(53,231,210,.12)}
.footer-sub button{
  padding:10px 16px;border-radius:var(--r-s);border:0;cursor:pointer;
  background:linear-gradient(135deg,#35E7D2,#12A69A);color:#022C28;font-weight:700;font-size:.8125rem;
  transition:filter .22s ease;
}
.footer-sub button:hover{filter:brightness(1.08)}
.footer-bottom{
  margin-top:56px;padding:22px 0;border-top:1px solid rgba(96,214,255,.1);
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
  font-size:.8125rem;color:var(--text-3);
}
.footer-bottom a{color:var(--text-3)}
.footer-bottom a:hover{color:var(--cyan)}
.footer-bottom .legal{display:flex;gap:20px;flex-wrap:wrap}

/* ============ 响应式 ============ */
@media (max-width:1400px){
  :root{--wrap:1200px}
}
@media (max-width:1200px){
  :root{--sec:88px}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:36px}
}
@media (max-width:992px){
  :root{--sec:72px}
  .nav-links,.nav-actions .search-box,.nav-actions .btn-glass-sm,.nav-actions .btn-glow-sm{display:none}
  .nav-toggle{display:flex}
  .hero-grid{grid-template-columns:1fr;gap:44px}
  .hero-strip{grid-template-columns:repeat(2,minmax(0,1fr));margin-top:48px}
  .feature-grid{grid-template-columns:1fr}
  .story{grid-template-columns:1fr;gap:40px}
  .pick-grid{grid-template-columns:1fr}
  .news-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .trust{grid-template-columns:1fr;gap:36px}
  .cta-inner{grid-template-columns:1fr;gap:36px}
  .cta-panel{padding:40px 28px}
  .milestone{grid-template-columns:1fr;gap:14px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:768px){
  :root{--sec:64px}
  .wrap{padding:0 18px}
  .hero{padding:64px 0 60px}
  .hero-cta .btn-glow,.hero-cta .btn-glass{width:100%}
  .news-grid{grid-template-columns:1fr}
  .pick-item{grid-template-columns:96px minmax(0,1fr)}
  .logo-wall{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:576px){
  .hero-strip{grid-template-columns:1fr}
  .hero-title{font-size:clamp(2rem,8vw,2.6rem)}
  .section-title{font-size:1.6rem}
  .faq-q{padding:18px 18px;font-size:1rem;gap:12px}
  .faq-a p{padding:0 18px 20px 58px}
  .form-glass{padding:20px}
  .cta-panel{padding:32px 20px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}

/* roulang page: article */
:root{
  --bg:#050B14;
  --bg-2:#081426;
  --bg-3:#0B1B30;
  --panel:rgba(10,28,50,.58);
  --panel-solid:#0A1B2E;
  --border:rgba(96,214,255,.18);
  --border-strong:rgba(96,214,255,.36);
  --text:#EAF4FF;
  --text-2:#9FB4CC;
  --text-3:#6E8199;
  --cyan:#35E7D2;
  --cyan-deep:#12A08F;
  --amber:#FFB45E;
  --success:#4ADE80;
  --warn:#FBBF24;
  --error:#FB7185;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --r-pill:999px;
  --sh-1:0 8px 24px rgba(0,0,0,.28);
  --sh-2:0 20px 60px rgba(0,0,0,.35);
  --sh-3:0 30px 120px rgba(0,0,0,.45);
  --glow:0 0 0 1px rgba(53,231,210,.35), 0 12px 40px rgba(53,231,210,.22);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:1rem;
  line-height:1.75;
  color:var(--text);
  background:
    radial-gradient(1100px 620px at 10% -10%, rgba(53,231,210,.14), transparent 62%),
    radial-gradient(900px 520px at 94% 2%, rgba(255,180,94,.10), transparent 64%),
    linear-gradient(180deg,#050B14 0%,#081426 48%,#050B14 100%);
  background-attachment:fixed;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(96,214,255,.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(96,214,255,.055) 1px, transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:radial-gradient(circle at 50% 12%, #000 26%, transparent 78%);
  mask-image:radial-gradient(circle at 50% 12%, #000 26%, transparent 78%);
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--cyan)}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.15;letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}
::selection{background:rgba(53,231,210,.3)}

.wrap{width:min(1240px,100% - 40px);margin:0 auto;position:relative;z-index:1}
@media (min-width:1400px){.wrap{width:min(1320px,100% - 72px)}}
.section{padding:100px 0;position:relative;z-index:1}
.section-tight{padding:64px 0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.8125rem;letter-spacing:.16em;text-transform:uppercase;
  color:var(--cyan);font-weight:700;margin-bottom:16px
}
.eyebrow::before{content:"";width:26px;height:1px;background:linear-gradient(90deg,var(--cyan),transparent)}
.section-head{max-width:720px;margin-bottom:48px}
.section-head h2{font-size:clamp(1.8rem,3.2vw,2.8rem);margin-bottom:14px}
.section-head p{color:var(--text-2);font-size:1.0625rem}
.muted{color:var(--text-3)}
.amber{color:var(--amber)}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:200;
  background:rgba(5,11,20,.72);
  border-bottom:1px solid rgba(96,214,255,.12);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  transition:background .3s var(--ease), box-shadow .3s var(--ease), border-color .3s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(4,9,17,.92);
  border-bottom-color:rgba(96,214,255,.22);
  box-shadow:0 12px 40px rgba(0,0,0,.45);
}
.header-inner{display:flex;align-items:center;gap:20px;height:72px}
.brand{display:inline-flex;align-items:center;gap:12px;flex:0 0 auto}
.brand-mark{
  width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(140deg,rgba(53,231,210,.9),rgba(18,160,143,.55));
  box-shadow:0 0 0 1px rgba(53,231,210,.4), 0 10px 30px rgba(53,231,210,.25);
  color:#04212B;font-weight:800;font-size:.9rem;letter-spacing:.02em;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-weight:800;font-size:1.05rem;letter-spacing:.02em;color:#fff}
.brand-tag{font-size:.6875rem;color:var(--text-3);letter-spacing:.08em}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:12px}
.nav-link{
  position:relative;padding:10px 14px;border-radius:var(--r-pill);
  font-size:.9375rem;color:var(--text-2);font-weight:600;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:5px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--cyan),rgba(53,231,210,0));
  transform:scaleX(0);transform-origin:left;transition:transform .28s var(--ease);
  box-shadow:0 0 12px rgba(53,231,210,.8);
}
.nav-link:hover{color:#fff}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:#fff}
.nav-link.active::after{transform:scaleX(1)}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.nav-search{
  display:flex;align-items:center;gap:8px;
  background:rgba(10,28,50,.66);
  border:1px solid var(--border);
  border-radius:var(--r-pill);
  padding:8px 16px;min-width:224px;
  transition:border-color .25s var(--ease), box-shadow .25s var(--ease);
}
.nav-search:focus-within{border-color:var(--border-strong);box-shadow:0 0 0 3px rgba(53,231,210,.12)}
.nav-search span{color:var(--cyan);font-size:1rem;line-height:1}
.nav-search input{
  background:transparent;border:0;outline:none;width:100%;
  font-size:.875rem;color:var(--text);
}
.nav-search input::placeholder{color:var(--text-3)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  background:rgba(10,28,50,.66);border:1px solid var(--border);
  cursor:pointer;padding:0;place-items:center;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text);margin:3px auto;transition:transform .25s var(--ease),opacity .25s var(--ease)}
body.drawer-open .nav-toggle span:nth-child(1){transform:translateY(5px) rotate(45deg)}
body.drawer-open .nav-toggle span:nth-child(2){opacity:0}
body.drawer-open .nav-toggle span:nth-child(3){transform:translateY(-5px) rotate(-45deg)}

.mobile-drawer{
  position:fixed;top:72px;left:0;right:0;z-index:190;
  background:rgba(4,10,19,.97);
  backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
  border-bottom:1px solid var(--border);
  padding:20px;
  opacity:0;transform:translateY(-14px);pointer-events:none;
  transition:opacity .25s var(--ease),transform .25s var(--ease);
  max-height:calc(100vh - 72px);overflow:auto;
}
body.drawer-open .mobile-drawer{opacity:1;transform:none;pointer-events:auto}
.mobile-drawer .nav-link{display:block;padding:14px 4px;border-bottom:1px solid rgba(96,214,255,.1);border-radius:0;font-size:1rem}
.mobile-drawer .nav-link::after{display:none}
.mobile-drawer .nav-search{min-width:0;width:100%;margin:16px 0}
.drawer-actions{display:flex;flex-direction:column;gap:10px;margin-top:8px}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;border-radius:var(--r-pill);
  font-weight:700;font-size:.9375rem;
  border:1px solid transparent;cursor:pointer;
  transition:transform .22s var(--ease), box-shadow .22s var(--ease), background .22s var(--ease), border-color .22s var(--ease), color .22s var(--ease);
}
.btn-sm{padding:10px 18px;font-size:.875rem}
.btn-lg{padding:16px 32px;font-size:1rem}
.btn-primary{
  background:linear-gradient(135deg,var(--cyan),var(--cyan-deep));
  color:#04212B;box-shadow:var(--glow);
}
.btn-primary:hover{
  transform:translateY(-1px);filter:brightness(1.08);color:#04212B;
  box-shadow:0 0 0 1px rgba(53,231,210,.5), 0 18px 52px rgba(53,231,210,.32);
}
.btn-ghost{
  background:rgba(10,28,50,.52);
  border-color:var(--border-strong);
  color:var(--text);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.btn-ghost:hover{
  transform:translateY(-1px);color:#fff;
  border-color:rgba(53,231,210,.6);
  box-shadow:0 14px 40px rgba(0,0,0,.35);
}
.btn-amber{
  background:linear-gradient(135deg,var(--amber),#F08F2E);
  color:#2A1600;box-shadow:0 0 0 1px rgba(255,180,94,.35), 0 12px 40px rgba(255,180,94,.2);
}
.btn-amber:hover{transform:translateY(-1px);filter:brightness(1.06);color:#2A1600}
.btn-block{width:100%}

/* ---------- badges ---------- */
.badge-soft{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 14px;border-radius:var(--r-pill);
  font-size:.75rem;font-weight:700;letter-spacing:.04em;
  background:rgba(53,231,210,.14);color:var(--cyan);
  border:1px solid rgba(53,231,210,.3);
}
.badge-amber{background:rgba(255,180,94,.14);color:var(--amber);border-color:rgba(255,180,94,.3)}
.badge-mute{background:rgba(159,180,204,.1);color:var(--text-2);border-color:rgba(159,180,204,.22)}

/* ---------- glass cards ---------- */
.glass{
  background:var(--panel);
  border:1px solid var(--border);
  border-radius:var(--r-lg);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  box-shadow:var(--sh-1), inset 0 1px 0 rgba(255,255,255,.06);
}
.card{
  position:relative;overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform .3s var(--ease), border-color .3s var(--ease), box-shadow .3s var(--ease);
}
.card:hover{transform:translateY(-4px);border-color:var(--border-strong);box-shadow:var(--sh-2)}
.card-media{position:relative;aspect-ratio:16/10;overflow:hidden}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.card:hover .card-media img{transform:scale(1.03)}
.card-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,11,20,.08),rgba(5,11,20,.72))}
.card-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1}
.card-body h3{font-size:1.125rem;line-height:1.4}
.card-body p{color:var(--text-2);font-size:.9375rem}
.card-meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap;font-size:.8125rem;color:var(--text-3);margin-top:auto}
.card-link{font-weight:700;color:var(--cyan);font-size:.875rem}

/* ---------- article ---------- */
.article-hero{padding:56px 0 40px;position:relative;z-index:1}
.crumb{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:.8125rem;color:var(--text-3);margin-bottom:24px}
.crumb a{color:var(--text-3)}
.crumb a:hover{color:var(--cyan)}
.crumb span.sep{opacity:.5}
.crumb .current{color:var(--text-2);max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-hero h1{
  font-size:clamp(1.9rem,3.6vw,3rem);
  max-width:1000px;margin:18px 0 20px;
}
.article-lead{color:var(--text-2);font-size:1.0625rem;max-width:760px}
.article-meta{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-top:26px;font-size:.875rem;color:var(--text-3)}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--text-3);opacity:.6}
.article-author{display:flex;align-items:center;gap:10px}
.avatar{
  width:36px;height:36px;border-radius:50%;display:grid;place-items:center;
  background:linear-gradient(140deg,rgba(255,180,94,.85),rgba(240,143,46,.5));
  color:#2A1600;font-weight:800;font-size:.8125rem;
}
.cover-frame{
  margin-top:40px;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--border);box-shadow:var(--sh-2);position:relative;
}
.cover-frame img{width:100%;aspect-ratio:21/9;object-fit:cover}
.cover-frame::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,11,20,0),rgba(5,11,20,.45))}

.article-body{
  max-width:920px;margin:0 auto;
  background:#081426;
  border:1px solid rgba(96,214,255,.14);
  border-radius:var(--r-lg);
  padding:52px 56px;
  box-shadow:var(--sh-2);
}
.prose{font-size:1.0625rem;line-height:1.85;color:#D8E7F7}
.prose > * + *{margin-top:1.35em}
.prose p{color:#D8E7F7}
.prose h2{font-size:1.6rem;margin-top:2.2em;color:#fff;padding-left:14px;position:relative}
.prose h2::before{content:"";position:absolute;left:0;top:.28em;bottom:.28em;width:3px;border-radius:3px;background:linear-gradient(180deg,var(--cyan),rgba(53,231,210,.15));box-shadow:0 0 14px rgba(53,231,210,.5)}
.prose h3{font-size:1.25rem;margin-top:1.9em;color:#fff}
.prose h4{font-size:1.0625rem;margin-top:1.6em;color:var(--amber)}
.prose ul,.prose ol{padding-left:1.4em}
.prose ul li{list-style:disc;margin-bottom:.6em}
.prose ol li{list-style:decimal;margin-bottom:.6em}
.prose li::marker{color:var(--cyan)}
.prose a{color:var(--cyan);text-decoration:underline;text-decoration-color:rgba(53,231,210,.45);text-underline-offset:4px}
.prose a:hover{text-decoration-color:var(--cyan);text-shadow:0 0 14px rgba(53,231,210,.45)}
.prose blockquote{
  margin:2em 0;padding:18px 24px;border-radius:0 var(--r-md) var(--r-md) 0;
  border-left:3px solid var(--cyan);
  background:rgba(53,231,210,.07);
  color:var(--text-2);font-size:1rem;
}
.prose img{border-radius:var(--r-md);border:1px solid var(--border);margin:2em 0}
.prose strong{color:#fff}
.prose code{
  background:rgba(53,231,210,.1);border:1px solid rgba(53,231,210,.2);
  padding:2px 7px;border-radius:6px;font-size:.9em;color:var(--cyan)
}
.prose table{width:100%;border-collapse:collapse;font-size:.9375rem;margin:2em 0}
.prose th,.prose td{padding:12px 14px;border-bottom:1px solid rgba(96,214,255,.14);text-align:left}
.prose th{color:#fff;background:rgba(10,28,50,.7);font-weight:700}
.prose hr{border:0;height:1px;background:linear-gradient(90deg,transparent,rgba(96,214,255,.3),transparent);margin:2.4em 0}

.empty-state{
  text-align:center;padding:72px 24px;
  background:var(--panel);border:1px dashed var(--border-strong);border-radius:var(--r-lg);
}
.empty-state .icon{
  width:64px;height:64px;border-radius:50%;margin:0 auto 20px;display:grid;place-items:center;
  background:rgba(53,231,210,.1);border:1px solid rgba(53,231,210,.28);color:var(--cyan);font-size:1.5rem;
}
.empty-state h2{font-size:1.5rem;margin-bottom:12px}
.empty-state p{color:var(--text-2);margin-bottom:24px}

/* ---------- related ---------- */
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:16px;max-width:920px;margin:0 auto}
.faq-item{
  background:var(--panel);border:1px solid var(--border);border-radius:var(--r-md);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  overflow:hidden;position:relative;
  transition:border-color .25s var(--ease), box-shadow .25s var(--ease);
}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:linear-gradient(180deg,var(--cyan),rgba(53,231,210,.1));
  opacity:0;transition:opacity .3s var(--ease);box-shadow:0 0 16px rgba(53,231,210,.6);
}
.faq-item[open]{border-color:var(--border-strong);box-shadow:var(--sh-1)}
.faq-item[open]::before{opacity:1}
.faq-item summary{
  list-style:none;cursor:pointer;padding:22px 26px;
  display:flex;align-items:center;gap:14px;
  font-weight:700;font-size:1.0625rem;color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .q-mark{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;display:grid;place-items:center;
  background:rgba(53,231,210,.14);border:1px solid rgba(53,231,210,.3);
  color:var(--cyan);font-size:.8125rem;font-weight:800;
}
.faq-item summary .arrow{margin-left:auto;color:var(--cyan);transition:transform .28s var(--ease)}
.faq-item[open] summary .arrow{transform:rotate(45deg)}
.faq-item .faq-body{padding:0 26px 24px 66px;color:var(--text-2);font-size:.9375rem}

/* ---------- cta / form ---------- */
.cta-panel{
  padding:56px;border-radius:var(--r-lg);
  background:linear-gradient(135deg,rgba(10,28,50,.82),rgba(8,20,38,.68));
  border:1px solid var(--border-strong);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  box-shadow:var(--sh-2);
  display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center;
  position:relative;overflow:hidden;
}
.cta-panel::after{
  content:"";position:absolute;width:420px;height:420px;right:-140px;top:-160px;border-radius:50%;
  background:radial-gradient(circle,rgba(53,231,210,.18),transparent 68%);
}
.cta-panel h2{font-size:clamp(1.6rem,2.6vw,2.2rem);margin-bottom:14px}
.cta-panel p{color:var(--text-2);max-width:56ch}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:28px}
.form-panel .field{margin-bottom:14px}
.form-panel input{
  width:100%;padding:14px 18px;border-radius:var(--r-md);
  background:rgba(4,11,21,.8);border:1px solid var(--border);color:var(--text);
  transition:border-color .25s var(--ease), box-shadow .25s var(--ease);
}
.form-panel input::placeholder{color:var(--text-3)}
.form-panel input:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(53,231,210,.16)}
.form-note{font-size:.8125rem;color:var(--text-3);margin-top:12px}

/* ---------- footer ---------- */
.site-footer{
  margin-top:40px;padding:72px 0 32px;
  background:linear-gradient(180deg,rgba(5,11,20,.2),rgba(4,9,17,.96));
  border-top:1px solid rgba(96,214,255,.14);
  position:relative;z-index:1;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr 1fr;gap:40px}
.footer-brand p{margin-top:18px;color:var(--text-3);font-size:.9375rem;max-width:36ch}
.footer-col h4{font-size:.9375rem;color:#fff;margin-bottom:18px;letter-spacing:.02em}
.footer-col ul{display:grid;gap:12px}
.footer-col a{color:var(--text-3);font-size:.9375rem}
.footer-col a:hover{color:var(--cyan)}
.footer-sub{display:flex;gap:8px;margin-top:14px}
.footer-sub input{
  flex:1;min-width:0;padding:12px 16px;border-radius:var(--r-pill);
  background:rgba(4,11,21,.85);border:1px solid var(--border);color:var(--text);font-size:.875rem;
}
.footer-sub input:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(53,231,210,.14)}
.footer-sub button{
  padding:12px 20px;border-radius:var(--r-pill);border:0;cursor:pointer;
  background:linear-gradient(135deg,var(--cyan),var(--cyan-deep));color:#04212B;font-weight:700;font-size:.875rem;
  transition:filter .2s var(--ease),transform .2s var(--ease);
}
.footer-sub button:hover{filter:brightness(1.08);transform:translateY(-1px)}
.footer-bottom{
  margin-top:52px;padding-top:24px;border-top:1px solid rgba(96,214,255,.12);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:.8125rem;color:var(--text-3);
}
.footer-bottom .legal{display:flex;gap:18px;flex-wrap:wrap}
.footer-bottom a{color:var(--text-3)}
.footer-bottom a:hover{color:var(--cyan)}

/* ---------- responsive ---------- */
@media (max-width:1199.98px){
  .nav-search{min-width:180px}
  .footer-grid{grid-template-columns:1.5fr 1fr 1fr;gap:32px}
  .cta-panel{grid-template-columns:1fr;gap:32px;padding:44px}
}
@media (max-width:991.98px){
  .nav-links,.nav-search{display:none}
  .nav-toggle{display:grid}
  .section{padding:72px 0}
  .article-body{padding:36px 28px}
  .related-grid{grid-template-columns:1fr 1fr}
  .cover-frame img{aspect-ratio:16/9}
}
@media (max-width:767.98px){
  .section{padding:56px 0}
  .header-inner{height:64px}
  .mobile-drawer{top:64px}
  .brand-tag{display:none}
  .related-grid{grid-template-columns:1fr}
  .article-hero{padding:36px 0 24px}
  .article-meta{gap:12px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .btn{width:100%}
  .cta-actions{flex-direction:column}
  .footer-sub{flex-direction:column}
  .article-body{padding:28px 20px}
  .prose{font-size:1.0625rem}
  .faq-item .faq-body{padding:0 20px 22px 20px}
}
@media (max-width:519.98px){
  .article-hero h1{font-size:1.65rem}
  .crumb .current{white-space:normal}
  .cta-panel{padding:32px 22px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
  html{scroll-behavior:auto}
}

/* roulang page: category1 */
:root{
  --bg-0:#050B14; --bg-1:#081426; --bg-2:#0B1B31;
  --cyan:#35E7D2; --cyan-deep:#0FA79A; --amber:#FFB45E;
  --success:#4ADE80; --warn:#FBBF24; --danger:#FB7185;
  --text-1:#EAF4FF; --text-2:#9FB4CC; --text-3:#6E8199;
  --glass:rgba(10,28,50,.58); --glass-line:rgba(96,214,255,.18);
  --glass-hi:rgba(255,255,255,.06);
  --r-s:10px; --r-m:16px; --r-l:24px; --r-p:999px;
  --sh-1:0 8px 24px rgba(0,0,0,.28);
  --sh-2:0 20px 60px rgba(0,0,0,.35);
  --sh-3:0 30px 120px rgba(0,0,0,.45);
  --wrap:1240px;
  --sp:8px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0; background:var(--bg-0); color:var(--text-1);
  font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-size:1rem; line-height:1.75; font-weight:400;
  -webkit-font-smoothing:antialiased; overflow-x:hidden;
}
body::before{
  content:""; position:fixed; inset:0; z-index:-2; pointer-events:none;
  background:
    radial-gradient(900px 520px at 12% -6%, rgba(53,231,210,.14), transparent 62%),
    radial-gradient(760px 480px at 92% 8%, rgba(255,180,94,.10), transparent 60%),
    radial-gradient(1000px 600px at 50% 108%, rgba(28,86,160,.20), transparent 66%),
    var(--bg-0);
}
body::after{
  content:""; position:fixed; inset:0; z-index:-1; pointer-events:none; opacity:.5;
  background-image:
    linear-gradient(rgba(96,214,255,.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(96,214,255,.055) 1px, transparent 1px);
  background-size:64px 64px, 64px 64px;
  mask-image:radial-gradient(circle at 50% 20%, #000 0%, transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 50% 20%, #000 0%, transparent 78%);
}
img{max-width:100%;height:auto;display:block}
a{color:var(--cyan);text-decoration:none;transition:color .22s ease,opacity .22s ease}
a:hover{color:#7ff3e6}
h1,h2,h3,h4{line-height:1.15;font-weight:800;margin:0;letter-spacing:-.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:6px}

.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 24px}
@media (min-width:1400px){.wrap{max-width:1320px}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(6,14,26,.62);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid rgba(96,214,255,.12);
  box-shadow:inset 0 1px 0 var(--glass-hi);
  transition:background .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.site-header.scrolled{background:rgba(4,10,20,.9);border-bottom-color:rgba(96,214,255,.22);box-shadow:0 14px 40px rgba(0,0,0,.42)}
.nav-wrap{display:flex;align-items:center;gap:24px;min-height:72px}
.brand{display:flex;align-items:center;gap:12px;color:var(--text-1);flex-shrink:0}
.brand:hover{color:var(--text-1)}
.brand-mark{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(140deg,rgba(53,231,210,.24),rgba(11,27,49,.9));
  border:1px solid rgba(53,231,210,.42);
  box-shadow:0 0 24px rgba(53,231,210,.22),inset 0 1px 0 var(--glass-hi);
  font-weight:800;font-size:.8rem;letter-spacing:.02em;color:var(--cyan);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-name{font-weight:800;font-size:1.02rem;letter-spacing:.01em}
.brand-tag{font-size:.72rem;color:var(--text-3);letter-spacing:.06em}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:8px}
.nav-link{
  position:relative;display:inline-block;padding:10px 14px;border-radius:var(--r-s);
  color:var(--text-2);font-size:.94rem;font-weight:500;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--cyan),transparent);
  transform:scaleX(0);transform-origin:left;transition:transform .26s ease;
  box-shadow:0 0 12px rgba(53,231,210,.65);
}
.nav-link:hover{color:var(--text-1)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:var(--text-1);background:rgba(53,231,210,.09)}
.nav-link.active::after{transform:scaleX(1)}
.nav-tools{display:flex;align-items:center;gap:12px;margin-left:auto}
.nav-search{
  display:flex;align-items:center;gap:6px;
  background:rgba(8,20,38,.78);border:1px solid rgba(96,214,255,.16);
  border-radius:var(--r-p);padding:5px 6px 5px 16px;min-width:236px;
  transition:border-color .25s ease,box-shadow .25s ease;
}
.nav-search:focus-within{border-color:rgba(53,231,210,.55);box-shadow:0 0 0 3px rgba(53,231,210,.14)}
.nav-search input{
  flex:1;background:transparent;border:0;color:var(--text-1);font-size:.88rem;outline:none;min-width:0;
}
.nav-search input::placeholder{color:var(--text-3)}
.nav-search button{
  border:0;border-radius:var(--r-p);padding:6px 14px;cursor:pointer;
  background:rgba(53,231,210,.16);color:var(--cyan);font-size:.82rem;font-weight:600;
  transition:background .22s ease;
}
.nav-search button:hover{background:rgba(53,231,210,.28)}
.menu-btn{
  display:none;width:42px;height:42px;border-radius:12px;cursor:pointer;
  background:rgba(10,28,50,.6);border:1px solid var(--glass-line);color:var(--text-1);
  align-items:center;justify-content:center;
}
.menu-btn span{display:block;width:18px;height:2px;background:var(--text-1);position:relative}
.menu-btn span::before,.menu-btn span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text-1)}
.menu-btn span::before{top:-6px}.menu-btn span::after{top:6px}
.drawer{display:none;border-top:1px solid rgba(96,214,255,.14);background:rgba(6,14,26,.96)}
.drawer.open{display:block}
.drawer .wrap{padding-top:16px;padding-bottom:22px;display:flex;flex-direction:column;gap:6px}
.drawer a.d-link{padding:12px 4px;border-bottom:1px solid rgba(96,214,255,.09);color:var(--text-2);font-size:1rem}
.drawer a.d-link.active{color:var(--cyan)}
.drawer .drawer-actions{display:flex;gap:12px;margin-top:16px;flex-wrap:wrap}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--r-p);font-size:.95rem;font-weight:700;
  border:1px solid transparent;cursor:pointer;text-align:center;
  transition:transform .2s ease,filter .2s ease,box-shadow .25s ease,background .25s ease,border-color .25s ease;
}
.btn-glow{
  background:linear-gradient(135deg,#35E7D2,#0FA79A);color:#04141A;
  box-shadow:0 0 0 1px rgba(53,231,210,.35),0 12px 40px rgba(53,231,210,.22);
}
.btn-glow:hover{transform:translateY(-1px);filter:brightness(1.08);color:#04141A;box-shadow:0 0 0 1px rgba(53,231,210,.5),0 18px 52px rgba(53,231,210,.34)}
.btn-ghost{
  background:rgba(10,28,50,.5);border-color:var(--glass-line);color:var(--text-1);
  box-shadow:inset 0 1px 0 var(--glass-hi);
}
.btn-ghost:hover{transform:translateY(-1px);border-color:rgba(53,231,210,.5);background:rgba(14,38,66,.7);color:var(--text-1)}
.btn-sm{padding:9px 18px;font-size:.86rem}
.btn-block{width:100%}

/* ---------- badges ---------- */
.badge-pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-p);font-size:.78rem;font-weight:600;letter-spacing:.03em;
  background:rgba(53,231,210,.12);color:var(--cyan);border:1px solid rgba(53,231,210,.28);
}
.badge-pill.amber{background:rgba(255,180,94,.12);color:var(--amber);border-color:rgba(255,180,94,.3)}
.badge-pill.grey{background:rgba(110,129,153,.14);color:var(--text-2);border-color:rgba(110,129,153,.28)}
.badge-dot{width:6px;height:6px;border-radius:50%;background:currentColor;box-shadow:0 0 10px currentColor}

/* ---------- section base ---------- */
.section{padding:104px 0;position:relative}
.section.tight{padding:80px 0}
.section-head{max-width:760px;margin-bottom:52px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:block;font-size:.78rem;letter-spacing:.22em;text-transform:uppercase;
  color:var(--cyan);font-weight:700;margin-bottom:16px;
}
.section-head h2{font-size:clamp(1.8rem,3.2vw,2.8rem);margin-bottom:18px}
.section-head p{color:var(--text-2);font-size:1.02rem;line-height:1.85}
.glass{
  background:var(--glass);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  border:1px solid var(--glass-line);
  box-shadow:inset 0 1px 0 var(--glass-hi),var(--sh-2);
  border-radius:var(--r-l);
}

/* ---------- hero ---------- */
.page-hero{
  position:relative;overflow:hidden;padding:92px 0 88px;
  border-bottom:1px solid rgba(96,214,255,.1);
}
.page-hero::before{
  content:"";position:absolute;inset:0;z-index:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  opacity:.22;filter:saturate(.9);
}
.page-hero::after{
  content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(120deg,rgba(5,11,20,.94) 18%,rgba(5,11,20,.72) 58%,rgba(5,11,20,.92) 100%);
}
.page-hero .wrap{position:relative;z-index:2}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center}
.hero-copy h1{font-size:clamp(2.1rem,4vw,3.4rem);margin:22px 0 20px}
.hero-copy h1 em{font-style:normal;color:var(--cyan)}
.hero-copy .lead{color:var(--text-2);font-size:1.08rem;line-height:1.85;max-width:600px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:34px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 26px;margin-top:30px}
.hero-points li{display:flex;align-items:center;gap:8px;color:var(--text-2);font-size:.92rem}
.hero-points li::before{
  content:"";width:6px;height:6px;border-radius:50%;background:var(--cyan);
  box-shadow:0 0 10px rgba(53,231,210,.8);flex-shrink:0;
}
.hero-panel{padding:30px;position:relative;overflow:hidden}
.hero-panel::before{
  content:"";position:absolute;top:-60px;right:-60px;width:180px;height:180px;border-radius:50%;
  background:radial-gradient(circle,rgba(53,231,210,.28),transparent 68%);
}
.hero-panel h3{font-size:1.08rem;margin-bottom:22px;color:var(--text-1)}
.stat-row{display:flex;justify-content:space-between;align-items:baseline;padding:14px 0;border-bottom:1px dashed rgba(96,214,255,.16)}
.stat-row:last-of-type{border-bottom:0}
.stat-row span{color:var(--text-2);font-size:.9rem}
.stat-row strong{font-size:1.32rem;font-weight:800;color:var(--cyan);letter-spacing:-.02em}
.stat-row strong.amber{color:var(--amber)}
.panel-note{margin-top:20px;padding-top:18px;border-top:1px solid rgba(96,214,255,.14);color:var(--text-3);font-size:.84rem;line-height:1.8}

/* ---------- intro ---------- */
.intro-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.intro-media{position:relative;border-radius:var(--r-l);overflow:hidden;border:1px solid var(--glass-line);box-shadow:var(--sh-2)}
.intro-media img{width:100%;height:100%;min-height:320px;object-fit:cover;transition:transform .6s ease}
.intro-media:hover img{transform:scale(1.03)}
.intro-media .media-tag{
  position:absolute;left:18px;bottom:18px;z-index:2;
  background:rgba(5,11,20,.78);border:1px solid var(--glass-line);
  border-radius:var(--r-p);padding:7px 16px;font-size:.8rem;color:var(--text-2);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
}
.intro-body p{color:var(--text-2);font-size:1.02rem;line-height:1.9;margin-bottom:18px}
.intro-list{margin-top:26px;display:grid;gap:12px}
.intro-list li{display:flex;gap:12px;align-items:flex-start;color:var(--text-1);font-size:.96rem}
.intro-list li i{
  flex-shrink:0;width:22px;height:22px;border-radius:7px;display:grid;place-items:center;
  background:rgba(53,231,210,.14);color:var(--cyan);font-size:.72rem;font-style:normal;font-weight:800;margin-top:3px;
}

/* ---------- capability matrix ---------- */
.matrix-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.cap-card{
  padding:30px 26px;border-radius:var(--r-l);position:relative;overflow:hidden;
  background:linear-gradient(170deg,rgba(12,32,56,.72),rgba(7,18,34,.66));
  border:1px solid var(--glass-line);
  box-shadow:inset 0 1px 0 var(--glass-hi),var(--sh-1);
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.cap-card:hover{transform:translateY(-4px);border-color:rgba(53,231,210,.42);box-shadow:inset 0 1px 0 var(--glass-hi),var(--sh-2)}
.cap-card .idx{
  font-size:.78rem;font-weight:800;letter-spacing:.16em;color:var(--amber);
}
.cap-card h3{font-size:1.16rem;margin:16px 0 12px}
.cap-card p{color:var(--text-2);font-size:.94rem;line-height:1.85}
.cap-card .cap-line{margin-top:20px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--cyan),transparent);opacity:.55}
.cap-card.alt .idx{color:var(--cyan)}

/* ---------- scenarios ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.scene-card{
  display:grid;grid-template-columns:132px 1fr;gap:22px;align-items:center;
  padding:20px;border-radius:var(--r-l);
  background:rgba(9,22,40,.6);border:1px solid var(--glass-line);
  box-shadow:inset 0 1px 0 var(--glass-hi),var(--sh-1);
  transition:transform .28s ease,border-color .28s ease;
}
.scene-card:hover{transform:translateY(-4px);border-color:rgba(255,180,94,.42)}
.scene-thumb{border-radius:var(--r-m);overflow:hidden;border:1px solid rgba(96,214,255,.14);aspect-ratio:4/3}
.scene-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.scene-card:hover .scene-thumb img{transform:scale(1.05)}
.scene-body h3{font-size:1.1rem;margin-bottom:10px}
.scene-body p{color:var(--text-2);font-size:.92rem;line-height:1.8}
.scene-body .badge-pill{margin-top:14px}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:14px;max-width:900px;margin:0 auto}
.faq-item{
  position:relative;border-radius:var(--r-m);overflow:hidden;
  background:var(--glass);border:1px solid var(--glass-line);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  box-shadow:inset 0 1px 0 var(--glass-hi),var(--sh-1);
  transition:border-color .25s ease;
}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:linear-gradient(180deg,var(--cyan),transparent);
  opacity:0;transition:opacity .28s ease;
}
.faq-item.open{border-color:rgba(53,231,210,.4)}
.faq-item.open::before{opacity:1}
.faq-q{
  width:100%;display:flex;align-items:center;gap:14px;text-align:left;
  background:transparent;border:0;color:var(--text-1);
  padding:22px 26px;font-size:1.02rem;font-weight:600;cursor:pointer;
}
.faq-q .qmark{
  flex-shrink:0;width:26px;height:26px;border-radius:50%;display:grid;place-items:center;
  background:rgba(53,231,210,.14);color:var(--cyan);font-weight:800;font-size:.82rem;
}
.faq-q .chev{margin-left:auto;color:var(--text-3);transition:transform .28s ease;font-size:.8rem}
.faq-item.open .chev{transform:rotate(180deg);color:var(--cyan)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .34s ease}
.faq-a p{padding:0 26px 24px 66px;color:var(--text-2);font-size:.96rem;line-height:1.9}

/* ---------- cta ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-l);
  padding:64px 56px;border:1px solid rgba(96,214,255,.22);
  background:linear-gradient(120deg,rgba(10,32,58,.9),rgba(6,16,30,.85));
  box-shadow:inset 0 1px 0 var(--glass-hi),var(--sh-3);
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;opacity:.16;
}
.cta-band::after{
  content:"";position:absolute;right:-80px;top:-80px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,180,94,.22),transparent 66%);
}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.2fr .8fr;gap:44px;align-items:center}
.cta-inner h2{font-size:clamp(1.7rem,3vw,2.5rem);margin-bottom:16px}
.cta-inner p{color:var(--text-2);font-size:1rem;line-height:1.85;max-width:560px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:28px}
.form-card{padding:28px;border-radius:var(--r-l);background:rgba(6,18,34,.78);border:1px solid var(--glass-line);box-shadow:inset 0 1px 0 var(--glass-hi)}
.form-card h3{font-size:1.05rem;margin-bottom:6px}
.form-card .hint{color:var(--text-3);font-size:.84rem;margin-bottom:18px}
.field{margin-bottom:14px}
.field label{display:block;font-size:.82rem;color:var(--text-2);margin-bottom:7px}
.field input,.field select{
  width:100%;padding:12px 14px;border-radius:var(--r-s);
  background:rgba(4,12,24,.9);border:1px solid rgba(96,214,255,.18);
  color:var(--text-1);font-size:.92rem;outline:none;transition:border-color .22s ease,box-shadow .22s ease;
}
.field input::placeholder{color:var(--text-3)}
.field input:focus,.field select:focus{border-color:rgba(53,231,210,.6);box-shadow:0 0 0 3px rgba(53,231,210,.14)}
.form-note{color:var(--text-3);font-size:.78rem;line-height:1.7;margin-top:12px}
.form-msg{margin-top:12px;font-size:.86rem;color:var(--success);display:none}
.form-msg.show{display:block}

/* ---------- breadcrumb ---------- */
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:.84rem;color:var(--text-3);margin-bottom:26px}
.crumb a{color:var(--text-2)}
.crumb a:hover{color:var(--cyan)}
.crumb .sep{color:var(--text-3);opacity:.6}

/* ---------- footer ---------- */
.site-footer{
  margin-top:40px;background:linear-gradient(180deg,rgba(5,12,22,.2),rgba(4,9,17,.96));
  border-top:1px solid rgba(96,214,255,.14);padding:72px 0 30px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr 1fr;gap:36px}
.footer-brand .brand{margin-bottom:18px}
.footer-brand p{color:var(--text-3);font-size:.9rem;line-height:1.85;max-width:320px}
.footer-col h4{font-size:.95rem;margin-bottom:18px;color:var(--text-1)}
.footer-col ul li{margin-bottom:11px}
.footer-col ul li a{color:var(--text-3);font-size:.9rem}
.footer-col ul li a:hover{color:var(--cyan)}
.footer-sub{display:flex;gap:8px;margin-top:14px}
.footer-sub input{
  flex:1;min-width:0;padding:11px 14px;border-radius:var(--r-s);
  background:rgba(4,12,24,.9);border:1px solid rgba(96,214,255,.18);color:var(--text-1);font-size:.88rem;outline:none;
}
.footer-sub input:focus{border-color:rgba(53,231,210,.6);box-shadow:0 0 0 3px rgba(53,231,210,.14)}
.footer-sub button{
  border:0;border-radius:var(--r-s);padding:11px 18px;cursor:pointer;font-weight:700;font-size:.86rem;
  background:linear-gradient(135deg,#35E7D2,#0FA79A);color:#04141A;
  transition:filter .22s ease,transform .22s ease;
}
.footer-sub button:hover{filter:brightness(1.08);transform:translateY(-1px)}
.footer-bottom{
  margin-top:52px;padding-top:24px;border-top:1px solid rgba(96,214,255,.12);
  display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center;
  color:var(--text-3);font-size:.84rem;
}
.footer-bottom .legal{display:flex;gap:22px;flex-wrap:wrap}
.footer-bottom .legal a{color:var(--text-3)}
.footer-bottom .legal a:hover{color:var(--cyan)}

/* ---------- responsive ---------- */
@media (max-width:1199.98px){
  .nav-search{min-width:180px}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:28px}
  .footer-grid .footer-col:last-child{grid-column:span 4}
}
@media (max-width:991.98px){
  .nav-links,.nav-search{display:none}
  .menu-btn{display:inline-flex}
  .hero-grid,.intro-grid,.cta-inner{grid-template-columns:1fr;gap:36px}
  .matrix-grid{grid-template-columns:repeat(2,1fr)}
  .scene-grid{grid-template-columns:1fr}
  .section{padding:72px 0}
  .page-hero{padding:64px 0}
  .cta-band{padding:44px 30px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .footer-grid .footer-col:last-child{grid-column:span 2}
}
@media (max-width:767.98px){
  .wrap{padding:0 18px}
  .matrix-grid{grid-template-columns:1fr}
  .scene-card{grid-template-columns:1fr;gap:16px}
  .scene-thumb{aspect-ratio:16/9}
  .hero-copy h1{font-size:clamp(1.9rem,7vw,2.5rem)}
  .faq-q{padding:18px 18px;font-size:.96rem}
  .faq-a p{padding:0 18px 20px 58px}
  .cta-band{padding:34px 22px}
  .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .footer-grid .footer-col:last-child{grid-column:span 1}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important}
}

/* roulang page: category2 */
:root{
  --bg-0:#050B14;
  --bg-1:#081426;
  --bg-2:#0B1B31;
  --cyan:#35E7D2;
  --cyan-dark:#0E8E85;
  --amber:#FFB45E;
  --ok:#4ADE80;
  --warn:#FBBF24;
  --err:#FB7185;
  --text-1:#EAF4FF;
  --text-2:#9FB4CC;
  --text-3:#6E8199;
  --glass:rgba(10,28,50,.58);
  --glass-2:rgba(8,22,40,.78);
  --line:rgba(96,214,255,.18);
  --line-strong:rgba(53,231,210,.42);
  --inner-hi:inset 0 1px 0 rgba(255,255,255,.06);
  --r-s:10px;
  --r-m:16px;
  --r-l:24px;
  --r-pill:999px;
  --sh-low:0 8px 24px rgba(0,0,0,.28);
  --sh-mid:0 20px 60px rgba(0,0,0,.35);
  --sh-high:0 30px 120px rgba(0,0,0,.45);
  --glow:0 0 0 1px rgba(53,231,210,.35), 0 12px 40px rgba(53,231,210,.22);
  --sp-1:8px; --sp-2:16px; --sp-3:24px; --sp-4:32px; --sp-5:48px; --sp-6:64px;
  --container:1240px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  min-height:100%;
  font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:1rem;
  line-height:1.75;
  color:var(--text-1);
  background-color:var(--bg-0);
  background-image:
    radial-gradient(900px 520px at 10% -8%, rgba(53,231,210,.10), transparent 62%),
    radial-gradient(820px 480px at 98% 6%, rgba(255,180,94,.08), transparent 60%),
    linear-gradient(180deg,#050B14 0%,#081426 42%,#050B14 100%);
  background-attachment:fixed;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:
    linear-gradient(rgba(96,214,255,.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(96,214,255,.045) 1px, transparent 1px);
  background-size:72px 72px;
  mask-image:radial-gradient(circle at 50% 30%, #000 0%, transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 50% 30%, #000 0%, transparent 78%);
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s ease,border-color .2s ease,opacity .2s ease;}
a:hover{color:var(--cyan);}
h1,h2,h3,h4{margin:0;line-height:1.15;font-weight:800;letter-spacing:.01em;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input,select,textarea{font:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px;}

.wrap{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
  position:relative;
  z-index:1;
}
.section{padding:104px 0;position:relative;z-index:1;}
.section-sm{padding:72px 0;position:relative;z-index:1;}
.section-head{max-width:760px;margin-bottom:48px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.8125rem;letter-spacing:.16em;text-transform:uppercase;
  color:var(--cyan);font-weight:600;margin-bottom:16px;
}
.eyebrow::before{content:"";width:26px;height:1px;background:linear-gradient(90deg,var(--cyan),transparent);}
h2.section-title{font-size:clamp(1.8rem,3.2vw,2.8rem);margin-bottom:18px;}
.section-sub{color:var(--text-2);font-size:1.0625rem;max-width:680px;}
.text-amber{color:var(--amber);}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:13px 26px;border-radius:var(--r-pill);
  font-weight:600;font-size:.9375rem;line-height:1;
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,box-shadow .25s ease,background .25s ease,color .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn-glow{
  background:linear-gradient(135deg,#4DF3DE 0%,#22C9B8 46%,#0E8E85 100%);
  color:#03201F;
  box-shadow:var(--glow);
}
.btn-glow:hover{transform:translateY(-1px);filter:brightness(1.08);box-shadow:0 0 0 1px rgba(53,231,210,.5),0 18px 52px rgba(53,231,210,.32);color:#03201F;}
.btn-ghost{
  background:rgba(10,28,50,.42);
  border-color:var(--line);
  color:var(--text-1);
  backdrop-filter:blur(10px);
  box-shadow:var(--inner-hi);
}
.btn-ghost:hover{border-color:var(--line-strong);color:var(--cyan);transform:translateY(-1px);}
.btn-sm{padding:10px 18px;font-size:.875rem;}
.btn-lg{padding:16px 34px;font-size:1rem;}
.btn-block{width:100%;}

/* 顶部导航 */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(6,16,30,.58);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid rgba(96,214,255,.12);
  transition:background .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.site-header.scrolled{
  background:rgba(4,11,22,.9);
  border-bottom-color:rgba(96,214,255,.24);
  box-shadow:0 18px 50px rgba(0,0,0,.42);
}
.header-inner{display:flex;align-items:center;gap:28px;height:74px;}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.brand-mark{
  width:38px;height:38px;border-radius:12px;
  display:grid;place-items:center;
  background:linear-gradient(140deg,rgba(53,231,210,.9),rgba(14,142,133,.55));
  color:#03201F;font-weight:800;font-size:.8125rem;letter-spacing:.04em;
  box-shadow:0 0 0 1px rgba(53,231,210,.35),0 10px 30px rgba(53,231,210,.25);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-name{font-weight:800;font-size:1rem;letter-spacing:.02em;}
.brand-tag{font-size:.6875rem;color:var(--text-3);letter-spacing:.06em;}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:8px;}
.nav-link{
  position:relative;padding:10px 14px;border-radius:var(--r-s);
  font-size:.9375rem;color:var(--text-2);font-weight:500;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;
  border-radius:2px;background:linear-gradient(90deg,var(--cyan),var(--amber));
  transform:scaleX(0);transform-origin:left;transition:transform .25s ease;
  box-shadow:0 0 12px rgba(53,231,210,.8);
}
.nav-link:hover{color:var(--text-1);}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1);}
.nav-link.active{color:var(--text-1);font-weight:600;}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.nav-search{
  display:flex;align-items:center;gap:6px;
  background:rgba(8,22,40,.72);
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  padding:6px 8px 6px 16px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.nav-search:focus-within{border-color:var(--line-strong);box-shadow:0 0 0 3px rgba(53,231,210,.14);}
.nav-search input{
  width:168px;background:transparent;border:0;outline:none;
  font-size:.875rem;color:var(--text-1);
}
.nav-search input::placeholder{color:var(--text-3);}
.nav-search button{
  width:30px;height:30px;border-radius:50%;border:0;cursor:pointer;
  background:rgba(53,231,210,.14);color:var(--cyan);display:grid;place-items:center;
}
.nav-search button:hover{background:rgba(53,231,210,.26);}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);background:rgba(8,22,40,.7);
  color:var(--text-1);cursor:pointer;place-items:center;
}
.nav-drawer{display:none;}

/* Hero */
.hero{
  position:relative;
  padding:96px 0 88px;
  overflow:hidden;
  border-bottom:1px solid rgba(96,214,255,.10);
}
.hero-bg{
  position:absolute;inset:0;z-index:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  opacity:.30;
  filter:saturate(.9);
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(5,11,20,.94) 0%,rgba(5,11,20,.72) 48%,rgba(5,11,20,.9) 100%);
}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center;position:relative;z-index:1;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:.8125rem;color:var(--text-3);margin-bottom:22px;}
.crumb a:hover{color:var(--cyan);}
.crumb span.sep{opacity:.5;}
.hero h1{font-size:clamp(2rem,4vw,3.15rem);margin-bottom:20px;}
.hero h1 em{font-style:normal;color:var(--amber);}
.hero-lead{color:var(--text-2);font-size:1.0625rem;max-width:620px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin:26px 0 30px;}
.tag{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 14px;border-radius:var(--r-pill);
  font-size:.8125rem;
  background:rgba(53,231,210,.10);
  border:1px solid rgba(53,231,210,.26);
  color:var(--cyan);
}
.tag.amber{background:rgba(255,180,94,.10);border-color:rgba(255,180,94,.3);color:var(--amber);}
.tag.grey{background:rgba(159,180,204,.08);border-color:rgba(159,180,204,.2);color:var(--text-2);}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;}
.hero-panel{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-l);
  padding:28px;
  backdrop-filter:blur(18px);
  box-shadow:var(--sh-mid),var(--inner-hi);
}
.hero-panel h3{font-size:1.0625rem;margin-bottom:18px;}
.panel-row{display:flex;align-items:flex-start;gap:12px;padding:12px 0;border-bottom:1px dashed rgba(96,214,255,.14);}
.panel-row:last-of-type{border-bottom:0;}
.panel-row i{color:var(--cyan);margin-top:5px;}
.panel-row strong{display:block;font-size:.9375rem;font-weight:600;}
.panel-row span{font-size:.8125rem;color:var(--text-3);}

/* 流程时间线 */
.timeline{position:relative;display:grid;gap:20px;}
.timeline::before{
  content:"";position:absolute;left:29px;top:14px;bottom:14px;width:2px;
  background:linear-gradient(180deg,rgba(53,231,210,.6),rgba(255,180,94,.35),transparent);
}
.tl-item{
  position:relative;display:grid;grid-template-columns:60px 1fr;gap:22px;align-items:flex-start;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-m);
  padding:24px 26px 24px 22px;
  backdrop-filter:blur(14px);
  box-shadow:var(--sh-low),var(--inner-hi);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.tl-item:hover{transform:translateY(-3px);border-color:var(--line-strong);box-shadow:var(--sh-mid);}
.tl-num{
  width:60px;height:60px;border-radius:18px;display:grid;place-items:center;
  font-weight:800;font-size:1.0625rem;
  color:#03201F;
  background:linear-gradient(140deg,var(--cyan),var(--cyan-dark));
  box-shadow:0 0 0 6px rgba(5,11,20,.9),0 10px 30px rgba(53,231,210,.25);
}
.tl-item:nth-child(even) .tl-num{background:linear-gradient(140deg,var(--amber),#C97F2A);color:#2A1600;}
.tl-body h3{font-size:1.125rem;margin-bottom:8px;}
.tl-body p{color:var(--text-2);font-size:.9375rem;}
.tl-body .tl-meta{margin-top:12px;display:flex;flex-wrap:wrap;gap:8px;}

/* 案例 */
.case-hero{
  display:grid;grid-template-columns:1.05fr .95fr;gap:0;
  background:var(--glass-2);
  border:1px solid var(--line);
  border-radius:var(--r-l);
  overflow:hidden;
  box-shadow:var(--sh-mid);
}
.case-hero figure{margin:0;position:relative;min-height:340px;}
.case-hero img{width:100%;height:100%;object-fit:cover;}
.case-hero figure::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,transparent 40%,rgba(5,11,20,.75) 100%);
}
.case-hero-body{padding:38px 36px;display:flex;flex-direction:column;justify-content:center;}
.case-hero-body h3{font-size:clamp(1.35rem,2.2vw,1.75rem);margin:14px 0 14px;}
.case-hero-body p{color:var(--text-2);font-size:.9375rem;margin-bottom:20px;}
.case-stats{display:flex;flex-wrap:wrap;gap:28px;margin-bottom:22px;}
.case-stat{display:flex;flex-direction:column;}
.case-stat b{font-size:1.5rem;color:var(--cyan);font-weight:800;}
.case-stat span{font-size:.8125rem;color:var(--text-3);}
.case-pair{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin-top:24px;}
.case-card{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-m);
  overflow:hidden;
  backdrop-filter:blur(14px);
  box-shadow:var(--sh-low),var(--inner-hi);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
  display:flex;flex-direction:column;
}
.case-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--sh-mid);}
.case-card .thumb{overflow:hidden;aspect-ratio:16/9;}
.case-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.case-card:hover .thumb img{transform:scale(1.03);}
.case-card .body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1;}
.case-card h3{font-size:1.125rem;}
.case-card p{color:var(--text-2);font-size:.9375rem;}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:.8125rem;color:var(--text-3);}
.link-more{color:var(--cyan);font-weight:600;font-size:.875rem;display:inline-flex;align-items:center;gap:6px;}
.link-more:hover{gap:10px;}

/* 指标条 */
.metric-strip{
  display:grid;grid-template-columns:repeat(4,1fr);
  gap:1px;
  background:rgba(96,214,255,.14);
  border:1px solid var(--line);
  border-radius:var(--r-l);
  overflow:hidden;
  box-shadow:var(--sh-mid);
}
.metric{
  background:rgba(7,19,35,.92);
  padding:34px 26px;
  transition:background .25s ease;
}
.metric:hover{background:rgba(11,27,49,.95);}
.metric b{display:block;font-size:clamp(1.75rem,3vw,2.4rem);font-weight:800;color:var(--text-1);letter-spacing:.01em;}
.metric b i{font-size:1.125rem;color:var(--cyan);font-style:normal;margin-left:4px;}
.metric span{display:block;margin-top:10px;font-size:.875rem;color:var(--text-3);}
.metric-note{margin-top:16px;font-size:.8125rem;color:var(--text-3);}

/* 表单 CTA */
.cta-band{
  position:relative;
  border:1px solid var(--line);
  border-radius:var(--r-l);
  overflow:hidden;
  background:var(--glass);
  backdrop-filter:blur(18px);
  box-shadow:var(--sh-high);
}
.cta-band .bg{
  position:absolute;inset:0;z-index:0;
  background-image:url('/assets/images/backpic/back-3.png');
  background-size:cover;background-position:center;
  opacity:.16;
}
.cta-band .inner{position:relative;z-index:1;display:grid;grid-template-columns:1fr 1fr;gap:48px;padding:56px 52px;}
.cta-copy h2{font-size:clamp(1.6rem,2.8vw,2.25rem);margin-bottom:16px;}
.cta-copy p{color:var(--text-2);font-size:1rem;margin-bottom:22px;}
.cta-list{display:grid;gap:12px;margin-bottom:26px;}
.cta-list li{display:flex;gap:10px;align-items:flex-start;font-size:.9375rem;color:var(--text-2);}
.cta-list i{color:var(--cyan);margin-top:5px;}
.form-card{
  background:rgba(6,17,32,.86);
  border:1px solid var(--line);
  border-radius:var(--r-m);
  padding:30px;
  box-shadow:var(--inner-hi);
}
.form-card h3{font-size:1.125rem;margin-bottom:8px;}
.form-card .hint{font-size:.8125rem;color:var(--text-3);margin-bottom:20px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:.8125rem;color:var(--text-2);margin-bottom:8px;}
.field input,.field select,.field textarea{
  width:100%;padding:13px 16px;border-radius:12px;
  background:rgba(4,11,22,.85);
  border:1px solid rgba(96,214,255,.18);
  color:var(--text-1);font-size:.9375rem;outline:none;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{min-height:104px;resize:vertical;}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3);}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--line-strong);
  box-shadow:0 0 0 3px rgba(53,231,210,.16);
}
.form-foot{font-size:.75rem;color:var(--text-3);margin-top:14px;line-height:1.7;}
.form-foot a{color:var(--text-2);text-decoration:underline;text-underline-offset:3px;}

/* FAQ */
.faq-list{display:grid;gap:14px;max-width:900px;margin:0 auto;}
.faq-item{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-m);
  backdrop-filter:blur(14px);
  box-shadow:var(--sh-low),var(--inner-hi);
  overflow:hidden;
  position:relative;
  transition:border-color .25s ease;
}
.faq-item[open]{border-color:var(--line-strong);}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:linear-gradient(180deg,var(--cyan),var(--amber));
  opacity:0;transition:opacity .25s ease;
}
.faq-item[open]::before{opacity:1;box-shadow:0 0 22px rgba(53,231,210,.7);}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;gap:14px;
  padding:20px 24px;font-weight:600;font-size:1rem;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary .q-icon{
  flex:0 0 auto;width:28px;height:28px;border-radius:50%;
  display:grid;place-items:center;font-size:.75rem;font-weight:700;
  background:rgba(53,231,210,.14);color:var(--cyan);
}
.faq-item summary::after{
  content:"+";margin-left:auto;font-size:1.25rem;color:var(--text-3);
  transition:transform .25s ease,color .25s ease;
}
.faq-item[open] summary::after{transform:rotate(45deg);color:var(--cyan);}
.faq-answer{padding:0 24px 22px 66px;color:var(--text-2);font-size:.9375rem;}

/* 合作方式 */
.split{display:grid;grid-template-columns:1.1fr .9fr;gap:28px;align-items:stretch;}
.info-card{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-m);
  padding:32px;
  backdrop-filter:blur(14px);
  box-shadow:var(--sh-low),var(--inner-hi);
}
.info-card h3{font-size:1.25rem;margin-bottom:14px;}
.info-card p{color:var(--text-2);font-size:.9375rem;}
.check-list{display:grid;gap:14px;margin-top:20px;}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:.9375rem;color:var(--text-2);}
.check-list i{color:var(--cyan);margin-top:6px;}
.mini-grid{display:grid;gap:18px;}
.mini-card{
  background:rgba(7,19,35,.9);
  border:1px solid rgba(96,214,255,.14);
  border-radius:var(--r-m);
  padding:24px;
  transition:border-color .25s ease,transform .25s ease;
}
.mini-card:hover{border-color:var(--line-strong);transform:translateY(-3px);}
.mini-card b{display:block;font-size:1.0625rem;margin-bottom:8px;}
.mini-card p{color:var(--text-2);font-size:.875rem;}

/* 页脚 */
.site-footer{
  position:relative;z-index:1;
  margin-top:40px;
  border-top:1px solid rgba(96,214,255,.14);
  background:linear-gradient(180deg,rgba(4,11,22,.6),rgba(3,8,16,.96));
  padding:72px 0 28px;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr 1fr;gap:36px;}
.footer-brand p{color:var(--text-3);font-size:.875rem;margin-top:18px;max-width:320px;line-height:1.8;}
.footer-brand .brand{margin-bottom:4px;}
.footer-col h4{font-size:.9375rem;margin-bottom:16px;color:var(--text-1);}
.footer-col ul{display:grid;gap:10px;}
.footer-col ul a{color:var(--text-3);font-size:.875rem;}
.footer-col ul a:hover{color:var(--cyan);}
.footer-sub{display:flex;gap:8px;margin-top:6px;}
.footer-sub input{
  flex:1;min-width:0;padding:10px 14px;border-radius:var(--r-pill);
  background:rgba(4,11,22,.85);border:1px solid rgba(96,214,255,.18);
  font-size:.8125rem;color:var(--text-1);outline:none;
}
.footer-sub input:focus{border-color:var(--line-strong);box-shadow:0 0 0 3px rgba(53,231,210,.14);}
.footer-sub button{
  padding:10px 18px;border-radius:var(--r-pill);border:0;cursor:pointer;
  background:linear-gradient(135deg,#4DF3DE,#0E8E85);color:#03201F;font-weight:700;font-size:.8125rem;
}
.footer-bottom{
  margin-top:52px;padding-top:22px;
  border-top:1px solid rgba(96,214,255,.12);
  display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;
  font-size:.8125rem;color:var(--text-3);
}
.footer-bottom .legal{display:flex;gap:20px;flex-wrap:wrap;}
.footer-bottom .legal a{color:var(--text-3);}
.footer-bottom .legal a:hover{color:var(--cyan);}

/* 响应式 */
@media (max-width:1200px){
  .header-inner{gap:18px;}
  .nav-search input{width:132px;}
  .footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:30px;}
  .footer-grid .footer-col:last-child{grid-column:span 1;}
}
@media (max-width:1100px){
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;}
}
@media (max-width:992px){
  .section{padding:76px 0;}
  .section-sm{padding:60px 0;}
  .nav-links,.nav-actions{display:none;}
  .nav-toggle{display:grid;margin-left:auto;}
  .header-inner{height:66px;}
  .nav-drawer{
    display:block;
    max-height:0;overflow:hidden;
    transition:max-height .35s ease;
    border-top:1px solid transparent;
  }
  .nav-drawer.open{max-height:560px;border-top-color:rgba(96,214,255,.14);}
  .drawer-inner{padding:20px 24px 26px;display:grid;gap:8px;}
  .drawer-inner a.d-link{
    padding:13px 14px;border-radius:12px;font-size:.9375rem;color:var(--text-2);
    border:1px solid rgba(96,214,255,.12);background:rgba(8,22,40,.6);
  }
  .drawer-inner a.d-link.active{color:var(--cyan);border-color:var(--line-strong);}
  .drawer-actions{display:grid;gap:12px;margin-top:10px;}
  .hero{padding:72px 0 64px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-bg{opacity:.20;background-position:center top;}
  .case-hero{grid-template-columns:1fr;}
  .case-hero figure{min-height:240px;}
  .case-hero figure::after{background:linear-gradient(180deg,transparent 45%,rgba(5,11,20,.8) 100%);}
  .case-pair{grid-template-columns:1fr;}
  .metric-strip{grid-template-columns:repeat(2,1fr);}
  .cta-band .inner{grid-template-columns:1fr;padding:40px 30px;gap:34px;}
  .split{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .footer-brand{grid-column:span 2;}
}
@media (max-width:768px){
  .wrap{padding:0 18px;}
  .hero h1{font-size:clamp(1.75rem,6.4vw,2.4rem);}
  .hero-cta .btn{width:100%;}
  .timeline::before{left:23px;}
  .tl-item{grid-template-columns:1fr;gap:16px;padding:22px;}
  .tl-num{width:48px;height:48px;border-radius:14px;font-size:.9375rem;box-shadow:0 0 0 5px rgba(5,11,20,.9);}
  .tl-item{padding-left:20px;}
  .section-head{margin-bottom:34px;}
  .case-hero-body{padding:28px 24px;}
  .faq-answer{padding-left:24px;}
  .info-card{padding:24px;}
  .form-card{padding:24px;}
  .metric{padding:26px 20px;}
  .case-stats{gap:20px;}
}
@media (max-width:576px){
  .case-stats{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
  .metric-strip{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-brand{grid-column:span 1;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .footer-sub{flex-direction:column;}
  .footer-sub button{width:100%;padding:12px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category3 */
:root{
  --bg-0:#050B14;
  --bg-1:#081426;
  --bg-2:#0B1B30;
  --cyan:#35E7D2;
  --cyan-deep:#0E8F82;
  --amber:#FFB45E;
  --ok:#4ADE80;
  --warn:#FBBF24;
  --err:#FB7185;
  --text-1:#EAF4FF;
  --text-2:#9FB4CC;
  --text-3:#6E8199;
  --glass:rgba(10,28,50,.58);
  --glass-2:rgba(9,24,44,.78);
  --glass-border:rgba(96,214,255,.18);
  --line:rgba(96,214,255,.14);
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --pill:999px;
  --sh-low:0 8px 24px rgba(0,0,0,.28);
  --sh-mid:0 20px 60px rgba(0,0,0,.35);
  --sh-high:0 30px 120px rgba(0,0,0,.45);
  --sec:104px;
  --wrap:1240px;
  --ff:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Helvetica Neue",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--ff);
  font-size:1rem;
  line-height:1.75;
  color:var(--text-1);
  background:var(--bg-0);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:-2;
  background:
    radial-gradient(900px 620px at 12% -6%, rgba(53,231,210,.14), transparent 62%),
    radial-gradient(820px 560px at 92% 4%, rgba(255,180,94,.10), transparent 60%),
    radial-gradient(1100px 800px at 50% 118%, rgba(24,86,140,.28), transparent 68%),
    linear-gradient(180deg,var(--bg-0),var(--bg-1) 42%,var(--bg-0));
}
body::after{
  content:"";
  position:fixed;
  inset:0;
  z-index:-1;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(96,214,255,.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(96,214,255,.055) 1px, transparent 1px);
  background-size:88px 88px, 88px 88px;
  mask-image:radial-gradient(circle at 50% 30%, #000 0%, transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 50% 30%, #000 0%, transparent 78%);
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
p{margin:0 0 1rem}
h1,h2,h3,h4{margin:0 0 .6rem;line-height:1.15;font-weight:800;letter-spacing:.2px}
ul{margin:0;padding:0;list-style:none}
input,button,textarea,select{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}
::selection{background:rgba(53,231,210,.28)}

.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 24px}
@media (min-width:1400px){.wrap{max-width:1320px}}
.sec{padding:var(--sec) 0;position:relative}
.sec-tight{padding:72px 0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.8125rem;letter-spacing:.16em;color:var(--cyan);
  text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:26px;height:1px;background:linear-gradient(90deg,var(--cyan),transparent)}
.sec-head{max-width:760px;margin-bottom:48px}
.sec-head h2{font-size:clamp(1.8rem,3.2vw,2.8rem)}
.sec-head p{color:var(--text-2);margin:0}
.lead{color:var(--text-2);font-size:1.0625rem;line-height:1.85}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--pill);
  font-weight:600;font-size:.9375rem;line-height:1;
  border:1px solid transparent;cursor:pointer;
  transition:transform .22s ease, box-shadow .22s ease, background .22s ease, border-color .22s ease, filter .22s ease;
  white-space:nowrap;
}
.btn-glow{
  color:#04201C;
  background:linear-gradient(135deg,var(--cyan),var(--cyan-deep));
  box-shadow:0 0 0 1px rgba(53,231,210,.35), 0 12px 40px rgba(53,231,210,.22);
}
.btn-glow:hover{transform:translateY(-1px);filter:brightness(1.08);box-shadow:0 0 0 1px rgba(53,231,210,.5), 0 18px 52px rgba(53,231,210,.32);color:#04201C}
.btn-ghost{
  color:var(--text-1);
  background:rgba(10,28,50,.45);
  border-color:rgba(96,214,255,.26);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.btn-ghost:hover{transform:translateY(-1px);border-color:rgba(53,231,210,.6);box-shadow:0 10px 34px rgba(53,231,210,.16);color:var(--text-1)}
.btn-amber{
  color:#2A1704;
  background:linear-gradient(135deg,var(--amber),#E08B2C);
  box-shadow:0 0 0 1px rgba(255,180,94,.35), 0 12px 36px rgba(255,180,94,.18);
}
.btn-amber:hover{transform:translateY(-1px);filter:brightness(1.06);color:#2A1704}
.btn-sm{padding:10px 18px;font-size:.875rem}
.btn-block{width:100%}

/* ---------- badges ---------- */
.badge-pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:var(--pill);
  font-size:.75rem;font-weight:600;letter-spacing:.04em;
  border:1px solid transparent;
}
.badge-cyan{color:var(--cyan);background:rgba(53,231,210,.10);border-color:rgba(53,231,210,.32)}
.badge-amber{color:var(--amber);background:rgba(255,180,94,.10);border-color:rgba(255,180,94,.34)}
.badge-gray{color:var(--text-2);background:rgba(159,180,204,.08);border-color:rgba(159,180,204,.2)}
.badge-ok{color:var(--ok);background:rgba(74,222,128,.10);border-color:rgba(74,222,128,.3)}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(6,16,30,.55);
  border-bottom:1px solid transparent;
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  transition:background .3s ease, border-color .3s ease, box-shadow .3s ease;
}
.site-header.scrolled{
  background:rgba(5,12,24,.92);
  border-bottom-color:var(--line);
  box-shadow:0 12px 40px rgba(0,0,0,.42);
}
.header-inner{display:flex;align-items:center;gap:26px;height:74px}
.brand{display:inline-flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{
  width:38px;height:38px;border-radius:12px;
  display:grid;place-items:center;
  background:linear-gradient(140deg,rgba(53,231,210,.22),rgba(255,180,94,.16));
  border:1px solid rgba(96,214,255,.34);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.09), 0 8px 22px rgba(0,0,0,.34);
  font-weight:800;font-size:.8125rem;color:var(--cyan);letter-spacing:.04em;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-weight:800;font-size:1rem;letter-spacing:.06em;color:var(--text-1)}
.brand-tag{font-size:.6875rem;color:var(--text-3);letter-spacing:.14em}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:8px}
.nav-link{
  position:relative;
  padding:9px 14px;border-radius:var(--r-sm);
  font-size:.9375rem;font-weight:500;color:var(--text-2);
  transition:color .22s ease, background .22s ease;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--cyan),rgba(53,231,210,0));
  transform:scaleX(0);transform-origin:left;
  transition:transform .26s ease;
  box-shadow:0 0 12px rgba(53,231,210,.7);
}
.nav-link:hover{color:var(--text-1);background:rgba(53,231,210,.06)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:var(--text-1);background:rgba(53,231,210,.09)}
.nav-link.active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.nav-search{
  display:flex;align-items:center;
  border-radius:var(--pill);
  background:rgba(8,22,40,.72);
  border:1px solid var(--glass-border);
  padding:0 8px 0 16px;
  transition:border-color .22s ease, box-shadow .22s ease;
}
.nav-search:focus-within{border-color:rgba(53,231,210,.55);box-shadow:0 0 0 3px rgba(53,231,210,.12)}
.nav-search input{
  width:172px;padding:10px 0;border:0;background:transparent;
  font-size:.875rem;color:var(--text-1);outline:none;
}
.nav-search input::placeholder{color:var(--text-3)}
.nav-search button{
  border:0;background:transparent;color:var(--cyan);
  font-size:.8125rem;font-weight:600;padding:8px 6px;cursor:pointer;
}
.menu-toggle{
  display:none;
  padding:10px 16px;border-radius:var(--pill);
  background:rgba(10,28,50,.6);border:1px solid var(--glass-border);
  color:var(--text-1);font-size:.875rem;font-weight:600;cursor:pointer;
}
.drawer{
  display:none;
  border-top:1px solid var(--line);
  background:rgba(5,12,24,.97);
  padding:18px 24px 26px;
}
.drawer.open{display:block}
.drawer .nav-link{display:block;padding:13px 4px;border-radius:0;border-bottom:1px solid rgba(96,214,255,.08)}
.drawer .nav-link::after{display:none}
.drawer-actions{display:flex;flex-direction:column;gap:12px;margin-top:18px}

/* ---------- hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  padding:76px 0 88px;
  border-bottom:1px solid var(--line);
}
.page-hero-bg{
  position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
  opacity:.26;
}
.page-hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(120deg, rgba(5,11,20,.94) 6%, rgba(8,20,38,.72) 52%, rgba(5,11,20,.9) 100%);
}
.page-hero .wrap{position:relative;z-index:2}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:.8125rem;color:var(--text-3);margin-bottom:22px}
.crumb a{color:var(--text-2);transition:color .2s ease}
.crumb a:hover{color:var(--cyan)}
.crumb span.sep{color:rgba(110,129,153,.6)}
.crumb strong{color:var(--text-1);font-weight:600}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,.85fr);gap:56px;align-items:end}
.page-hero h1{font-size:clamp(2.1rem,4.2vw,3.5rem);margin-bottom:20px}
.page-hero h1 em{font-style:normal;color:var(--cyan)}
.page-hero .lead{max-width:640px;font-size:1.0625rem}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-panel{
  background:var(--glass);
  border:1px solid var(--glass-border);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-mid), inset 0 1px 0 rgba(255,255,255,.06);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  padding:26px 26px 22px;
}
.hero-panel h3{font-size:1rem;letter-spacing:.06em;color:var(--text-2);font-weight:600;margin-bottom:18px}
.hero-stats{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.hero-stat strong{display:block;font-size:1.75rem;font-weight:800;color:var(--text-1);line-height:1.2}
.hero-stat strong i{font-style:normal;font-size:.875rem;color:var(--cyan);margin-left:4px;font-weight:600}
.hero-stat span{font-size:.8125rem;color:var(--text-3)}
.hero-panel hr{border:0;border-top:1px solid var(--line);margin:22px 0 16px}
.hero-note{font-size:.8125rem;color:var(--text-3);line-height:1.7}

/* ---------- resource layout ---------- */
.res-layout{display:grid;grid-template-columns:260px minmax(0,1fr);gap:44px;align-items:start}
.toc{
  position:sticky;top:98px;
  background:var(--glass);
  border:1px solid var(--glass-border);
  border-radius:var(--r-md);
  padding:22px 20px;
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  box-shadow:var(--sh-low);
}
.toc h3{font-size:.8125rem;letter-spacing:.16em;color:var(--text-3);font-weight:600;margin-bottom:14px;text-transform:uppercase}
.toc a{
  display:flex;align-items:center;gap:10px;
  padding:10px 12px;border-radius:var(--r-sm);
  font-size:.9375rem;color:var(--text-2);
  transition:background .2s ease,color .2s ease,transform .2s ease;
}
.toc a::before{content:"";width:6px;height:6px;border-radius:50%;background:rgba(96,214,255,.35);transition:background .2s ease,box-shadow .2s ease}
.toc a:hover{background:rgba(53,231,210,.08);color:var(--text-1);transform:translateX(2px)}
.toc a:hover::before{background:var(--cyan);box-shadow:0 0 10px rgba(53,231,210,.8)}
.toc-sub{margin-top:18px;padding-top:16px;border-top:1px solid var(--line);font-size:.8125rem;color:var(--text-3);line-height:1.7}

.res-group{margin-bottom:52px;scroll-margin-top:104px}
.res-group:last-child{margin-bottom:0}
.res-group-head{display:flex;align-items:baseline;gap:14px;flex-wrap:wrap;margin-bottom:20px}
.res-group-head h3{font-size:1.35rem;margin:0}
.res-group-head span{font-size:.8125rem;color:var(--text-3)}
.res-item{
  display:grid;grid-template-columns:180px minmax(0,1fr);gap:22px;
  padding:18px;border-radius:var(--r-md);
  background:linear-gradient(180deg,rgba(11,27,48,.72),rgba(8,20,38,.72));
  border:1px solid var(--glass-border);
  box-shadow:var(--sh-low);
  margin-bottom:16px;
  transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease;
}
.res-item:hover{transform:translateY(-4px);border-color:rgba(53,231,210,.42);box-shadow:var(--sh-mid)}
.res-thumb{
  position:relative;overflow:hidden;border-radius:var(--r-sm);
  aspect-ratio:16/10;background:var(--bg-2);
}
.res-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.res-item:hover .res-thumb img{transform:scale(1.04)}
.res-body h4{font-size:1.125rem;margin-bottom:8px}
.res-body p{font-size:.9375rem;color:var(--text-2);margin-bottom:12px}
.res-meta{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-bottom:14px}
.res-actions{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.res-link{
  font-size:.875rem;font-weight:600;color:var(--cyan);
  border-bottom:1px solid rgba(53,231,210,.4);
  padding-bottom:2px;transition:border-color .2s ease,color .2s ease;
}
.res-link:hover{border-color:var(--cyan);color:#7DF3E5}

/* ---------- subscribe ---------- */
.sub-band{
  background:linear-gradient(135deg,rgba(10,28,50,.86),rgba(8,20,38,.7));
  border:1px solid var(--glass-border);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-mid);
  padding:44px;
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,420px);gap:44px;align-items:center;
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
}
.sub-band h2{font-size:clamp(1.6rem,2.6vw,2.1rem)}
.sub-band p{color:var(--text-2);margin:0}
.sub-form{display:flex;flex-direction:column;gap:12px}
.field-row{display:flex;gap:12px}
.field{
  flex:1;display:block;
  background:rgba(5,13,26,.9);
  border:1px solid var(--glass-border);
  border-radius:var(--pill);
  padding:14px 20px;font-size:.9375rem;color:var(--text-1);
  transition:border-color .22s ease,box-shadow .22s ease;
}
.field::placeholder{color:var(--text-3)}
.field:focus{outline:none;border-color:rgba(53,231,210,.6);box-shadow:0 0 0 3px rgba(53,231,210,.12)}
.form-hint{font-size:.8125rem;color:var(--text-3);line-height:1.7}
.form-hint a{color:var(--text-2);border-bottom:1px dashed rgba(159,180,204,.4)}
.form-hint a:hover{color:var(--cyan)}

/* ---------- related ---------- */
.rel-list{border-top:1px solid var(--line)}
.rel-row{
  display:flex;align-items:center;gap:18px;flex-wrap:wrap;
  padding:20px 4px;border-bottom:1px solid var(--line);
  transition:background .22s ease,padding-left .22s ease;
}
.rel-row:hover{background:rgba(53,231,210,.04);padding-left:12px}
.rel-row .rel-title{font-weight:600;font-size:1.0625rem;flex:1 1 320px;min-width:0}
.rel-row .rel-title a:hover{color:var(--cyan)}
.rel-row time{font-size:.8125rem;color:var(--text-3)}

/* ---------- faq ---------- */
.faq{display:grid;gap:14px}
.faq-item{
  background:var(--glass);
  border:1px solid var(--glass-border);
  border-left:3px solid rgba(53,231,210,.2);
  border-radius:var(--r-md);
  overflow:hidden;
  transition:border-color .24s ease,box-shadow .24s ease;
}
.faq-item[open]{border-left-color:var(--cyan);box-shadow:0 0 0 1px rgba(53,231,210,.14), var(--sh-low)}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;gap:14px;
  padding:20px 24px;font-weight:600;font-size:1.0625rem;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-q{
  flex-shrink:0;width:24px;height:24px;border-radius:50%;
  display:grid;place-items:center;font-size:.8125rem;font-weight:700;
  color:var(--cyan);background:rgba(53,231,210,.12);border:1px solid rgba(53,231,210,.34);
}
.faq-item summary .caret{margin-left:auto;color:var(--text-3);transition:transform .24s ease;font-size:.75rem}
.faq-item[open] summary .caret{transform:rotate(180deg);color:var(--cyan)}
.faq-body{padding:0 24px 22px 62px;color:var(--text-2);font-size:.9375rem}
.faq-body p:last-child{margin-bottom:0}

/* ---------- cta ---------- */
.cta-band{
  position:relative;overflow:hidden;
  border-radius:var(--r-lg);
  border:1px solid var(--glass-border);
  background:linear-gradient(135deg,rgba(9,26,46,.9),rgba(6,15,28,.94));
  box-shadow:var(--sh-mid);
  padding:56px 48px;
  display:grid;grid-template-columns:minmax(0,1fr) auto;gap:40px;align-items:center;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;opacity:.16;
}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(520px 320px at 88% 18%, rgba(255,180,94,.18), transparent 70%);
}
.cta-band > *{position:relative;z-index:2}
.cta-band h2{font-size:clamp(1.6rem,2.8vw,2.2rem);margin-bottom:10px}
.cta-band p{color:var(--text-2);margin:0;max-width:620px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- footer ---------- */
.site-footer{
  margin-top:24px;
  background:linear-gradient(180deg,rgba(5,13,26,.6),rgba(3,8,16,.96));
  border-top:1px solid var(--line);
  padding:76px 0 30px;
}
.footer-grid{
  display:grid;
  grid-template-columns:minmax(0,1.5fr) repeat(4,minmax(0,1fr));
  gap:40px;
}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:.9375rem;color:var(--text-3);max-width:330px;line-height:1.8}
.footer-col h4{font-size:.9375rem;font-weight:700;color:var(--text-1);margin-bottom:16px;letter-spacing:.04em}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:.875rem;color:var(--text-3);transition:color .2s ease,padding-left .2s ease}
.footer-col a:hover{color:var(--cyan);padding-left:4px}
.footer-sub{display:flex;gap:8px;margin-top:12px}
.footer-sub input{
  flex:1;min-width:0;
  background:rgba(5,13,26,.9);
  border:1px solid var(--glass-border);
  border-radius:var(--pill);
  padding:11px 16px;font-size:.8125rem;color:var(--text-1);
  transition:border-color .22s ease,box-shadow .22s ease;
}
.footer-sub input::placeholder{color:var(--text-3)}
.footer-sub input:focus{outline:none;border-color:rgba(53,231,210,.55);box-shadow:0 0 0 3px rgba(53,231,210,.12)}
.footer-sub button{
  border:0;cursor:pointer;
  padding:11px 18px;border-radius:var(--pill);
  font-size:.8125rem;font-weight:700;color:#04201C;
  background:linear-gradient(135deg,var(--cyan),var(--cyan-deep));
  transition:filter .2s ease,transform .2s ease;
}
.footer-sub button:hover{filter:brightness(1.08);transform:translateY(-1px)}
.footer-bottom{
  margin-top:52px;padding-top:24px;
  border-top:1px solid rgba(96,214,255,.1);
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  font-size:.8125rem;color:var(--text-3);
}
.footer-bottom .legal{display:flex;gap:20px;flex-wrap:wrap}
.footer-bottom a{color:var(--text-3)}
.footer-bottom a:hover{color:var(--cyan)}

/* ---------- responsive ---------- */
@media (max-width:1200px){
  .footer-grid{grid-template-columns:minmax(0,1.4fr) repeat(2,minmax(0,1fr))}
  .footer-col:nth-child(4),.footer-col:nth-child(5){margin-top:8px}
}
@media (max-width:1024px){
  :root{--sec:88px}
  .hero-grid{grid-template-columns:1fr;gap:36px;align-items:start}
  .res-layout{grid-template-columns:1fr;gap:32px}
  .toc{position:static}
  .sub-band{grid-template-columns:1fr;gap:28px;padding:34px}
  .cta-band{grid-template-columns:1fr;gap:26px;padding:44px 32px}
}
@media (max-width:991px){
  .nav-links,.nav-search{display:none}
  .menu-toggle{display:inline-flex;align-items:center}
  .brand-tag{display:none}
  .res-item{grid-template-columns:140px minmax(0,1fr)}
}
@media (max-width:768px){
  :root{--sec:72px}
  .wrap{padding:0 18px}
  .sec-tight{padding:56px 0}
  .hero-cta .btn,.cta-actions .btn{width:100%}
  .hero-stats{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .res-item{grid-template-columns:1fr}
  .res-thumb{aspect-ratio:16/9}
  .faq-body{padding-left:24px}
  .cta-band{padding:34px 24px}
  .sub-band{padding:26px}
}
@media (max-width:520px){
  .brand-name{font-size:.9375rem}
  .hero-panel{padding:20px}
  .hero-stats{gap:14px}
  .hero-stat strong{font-size:1.4rem}
  .faq-item summary{font-size:.9375rem;padding:16px 18px}
  .rel-row{gap:10px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
  html{scroll-behavior:auto}
}