/* roulang page: index */
:root{
  --bg-base:#070C14;
  --bg-elev-1:#0C1420;
  --bg-elev-2:#111C2B;
  --brand:#2BC7E8;
  --brand-deep:#16689F;
  --accent:#F2A64B;
  --mint:#3FE0B0;
  --text-1:#EAF2FA;
  --text-2:#A7B6C8;
  --text-3:#6C7C90;
  --line:rgba(255,255,255,.08);
  --glass:rgba(255,255,255,.045);
  --success:#35D08A;
  --error:#F2604B;
  --r-card:18px;
  --r-sm:14px;
  --shadow-card:0 18px 40px -24px rgba(0,0,0,.85);
  --shadow-accent:0 12px 32px -10px rgba(242,166,75,.5);
  --ease:cubic-bezier(.2,.7,.3,1);
  --container:1240px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-base);
  color:var(--text-1);
  font-family:"HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25}
p{margin:0}
::selection{background:rgba(43,199,232,.3);color:#fff}
.container{max-width:var(--container);margin:0 auto;padding:0 24px;width:100%}
.mono{font-family:"SFMono-Regular",Inter,Consolas,"Liberation Mono",Menlo,monospace;font-variant-numeric:tabular-nums}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:500;letter-spacing:.14em;text-transform:uppercase;color:var(--brand)}
.eyebrow::before{content:"";width:22px;height:1px;background:linear-gradient(90deg,var(--brand),transparent)}

/* ---------- Header / Nav ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:120;height:72px;
  transition:height .25s var(--ease),background .25s var(--ease),border-color .25s var(--ease);
  border-bottom:1px solid transparent;
}
.site-header.scrolled{
  height:62px;
  background:rgba(7,12,20,.72);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom-color:var(--line);
}
.nav-inner{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;height:100%;gap:16px}
.nav-side{display:flex;align-items:center;gap:4px}
.nav-side.nav-right{justify-content:flex-end}
.nav-link{
  position:relative;padding:9px 15px;font-size:15px;color:var(--text-2);
  border-radius:999px;transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-link:hover{color:var(--text-1);background:rgba(255,255,255,.05)}
.nav-link:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.nav-link.active{color:var(--text-1)}
.nav-link.active::after{
  content:"";position:absolute;left:15px;right:15px;bottom:2px;height:3px;border-radius:3px;
  background:linear-gradient(90deg,var(--brand),var(--accent));
  box-shadow:0 0 12px rgba(43,199,232,.75);
}
.brand{display:inline-flex;align-items:center;gap:10px;padding:6px 4px;justify-self:center}
.brand-mark{width:30px;height:30px;flex:0 0 auto;display:block}
.brand-text{font-size:18px;font-weight:700;letter-spacing:.01em;white-space:nowrap}
.nav-toggle{
  display:none;position:absolute;right:20px;top:50%;transform:translateY(-50%);
  width:42px;height:42px;align-items:center;justify-content:center;gap:5px;flex-direction:column;
  background:rgba(255,255,255,.05);border:1px solid var(--line);border-radius:12px;cursor:pointer;
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.nav-toggle:hover{border-color:rgba(43,199,232,.5);background:rgba(43,199,232,.08)}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text-1);transition:transform .25s var(--ease),opacity .2s var(--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)}
.mobile-panel{
  position:fixed;top:0;left:0;right:0;z-index:110;
  padding:88px 24px 32px;
  background:rgba(7,12,20,.95);
  -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
  transform:translateY(-102%);opacity:0;pointer-events:none;
  transition:transform .32s var(--ease),opacity .32s var(--ease);
}
.mobile-panel.open{transform:translateY(0);opacity:1;pointer-events:auto}
.mobile-panel a{
  display:block;text-align:center;font-size:18px;padding:16px 0;color:var(--text-2);
  border-bottom:1px solid rgba(255,255,255,.06);
  opacity:0;transform:translateY(-8px);
  transition:opacity .3s var(--ease),transform .3s var(--ease),color .2s var(--ease);
}
.mobile-panel a:last-child{border-bottom:none}
.mobile-panel.open a{opacity:1;transform:translateY(0)}
.mobile-panel.open a:nth-child(1){transition-delay:.06s}
.mobile-panel.open a:nth-child(2){transition-delay:.10s}
.mobile-panel.open a:nth-child(3){transition-delay:.14s}
.mobile-panel.open a:nth-child(4){transition-delay:.18s}
.mobile-panel a:hover{color:var(--text-1)}
.mobile-panel a.active{color:var(--brand)}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 26px;border-radius:999px;font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .2s var(--ease),filter .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease),background .2s var(--ease);
}
.btn svg{width:16px;height:16px;flex:0 0 auto}
.btn-primary{
  background:linear-gradient(135deg,#F2A64B,#DE8F2F);color:#1B1305;
  box-shadow:var(--shadow-accent),inset 0 0 0 1px rgba(242,166,75,.35);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px)}
.btn-ghost{
  background:rgba(255,255,255,.04);border-color:rgba(255,255,255,.16);color:var(--text-1);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
}
.btn-ghost:hover{border-color:rgba(43,199,232,.55);color:#fff;transform:translateY(-2px)}
.btn:active{transform:translateY(1px);filter:brightness(.97)}
.btn:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.btn-block{width:100%}

/* ---------- Chips / Badges ---------- */
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;font-size:12px;font-weight:500;letter-spacing:.06em;
  background:rgba(43,199,232,.10);border:1px solid rgba(43,199,232,.32);color:var(--brand);
}
.chip-mint{background:rgba(63,224,176,.10);border-color:rgba(63,224,176,.32);color:var(--mint)}
.chip-accent{background:rgba(242,166,75,.10);border-color:rgba(242,166,75,.32);color:var(--accent)}

/* ---------- Hero ---------- */
.hero{position:relative;padding:158px 0 92px;overflow:hidden;isolation:isolate}
.hero-glow{
  position:absolute;inset:0;z-index:-2;
  background:
    radial-gradient(900px 520px at 80% 12%,rgba(43,199,232,.16),transparent 68%),
    radial-gradient(720px 460px at 8% 78%,rgba(242,166,75,.11),transparent 70%);
}
.hero-grid{
  position:absolute;inset:0;z-index:-1;
  background-image:
    linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:32px 32px;
  -webkit-mask-image:linear-gradient(#000 0%,rgba(0,0,0,.35) 55%,transparent 88%);
  mask-image:linear-gradient(#000 0%,rgba(0,0,0,.35) 55%,transparent 88%);
}
.hero-inner{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.hero-copy h1{font-size:clamp(30px,4.2vw,52px);line-height:1.16;letter-spacing:-.01em;margin:20px 0 0}
.hero-copy h1 em{font-style:normal;background:linear-gradient(120deg,var(--brand),var(--mint));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{margin-top:20px;font-size:17px;color:var(--text-2);max-width:520px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:52px;padding-top:28px;border-top:1px solid var(--line)}
.hero-stats li{display:flex;flex-direction:column;gap:4px}
.hero-stats strong{font-size:26px;font-weight:700;color:var(--text-1);font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.hero-stats span{font-size:12px;color:var(--text-3);letter-spacing:.04em}
.hero-visual{position:relative}
.hero-visual img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:20px;border:1px solid var(--line);box-shadow:0 30px 70px -34px rgba(0,0,0,.95)}
.hero-float{
  position:absolute;right:-14px;bottom:-18px;
  min-width:176px;padding:16px 20px;border-radius:var(--r-sm);
  background:linear-gradient(160deg,rgba(255,255,255,.09),rgba(255,255,255,.025));
  border:1px solid var(--line);
  -webkit-backdrop-filter:blur(18px) saturate(140%);backdrop-filter:blur(18px) saturate(140%);
  box-shadow:var(--shadow-card);
}
.hero-float-label{display:block;font-size:12px;color:var(--text-3);letter-spacing:.06em}
.hero-float-value{display:block;margin-top:4px;font-size:28px;font-weight:700;color:var(--mint);font-variant-numeric:tabular-nums;line-height:1.1}
.hero-float-value em{font-style:normal;font-size:13px;font-weight:500;color:var(--text-2);margin-left:3px}

/* ---------- Brand strip ---------- */
.brand-strip{padding:36px 0 8px}
.brand-strip-inner{
  display:flex;align-items:center;gap:18px;padding:22px 28px;border-radius:var(--r-card);
  background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  border:1px solid var(--line);border-left:3px solid var(--brand);
  -webkit-backdrop-filter:blur(18px) saturate(140%);backdrop-filter:blur(18px) saturate(140%);
}
.brand-strip-inner p{font-size:16px;color:var(--text-1)}
.brand-strip-inner .chip{margin-left:auto;flex:0 0 auto}

/* ---------- Generic section ---------- */
.section{padding:96px 0}
.section-tight{padding:72px 0}
.section-head{max-width:720px;margin-bottom:48px}
.section-head h2{font-size:clamp(24px,2.8vw,36px);margin-top:16px}
.section-head p{margin-top:16px;color:var(--text-2);font-size:16px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}

/* ---------- Story ---------- */
.story{position:relative}
.story-grid{display:grid;grid-template-columns:5fr 6fr;gap:64px;align-items:center}
.story-media{position:relative;margin-left:-64px}
.story-media img{width:100%;aspect-ratio:4/5;object-fit:cover;border-radius:20px;border:1px solid var(--line);box-shadow:0 30px 70px -38px rgba(0,0,0,.95)}
.story-media::after{
  content:"";position:absolute;inset:auto -18px -18px auto;width:120px;height:120px;border-radius:18px;
  background:radial-gradient(circle at 30% 30%,rgba(43,199,232,.28),rgba(43,199,232,0) 70%);
  border:1px solid rgba(43,199,232,.2);z-index:-1;
}
.story-copy h2{font-size:clamp(24px,2.8vw,36px);margin-top:16px}
.story-copy p{margin-top:18px;color:var(--text-2)}
.point-list{margin-top:30px;display:grid;gap:16px}
.point-list li{display:flex;gap:14px;align-items:flex-start;font-size:15px;color:var(--text-1)}
.point-list li::before{
  content:"";flex:0 0 auto;width:8px;height:8px;margin-top:11px;border-radius:50%;
  background:var(--brand);box-shadow:0 0 12px rgba(43,199,232,.9);
}
.point-list li span{color:var(--text-2);font-size:14px;display:block;margin-top:2px}

/* ---------- Feature cards ---------- */
.feature-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px;align-items:start}
.card{
  position:relative;border-radius:var(--r-card);border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  box-shadow:var(--shadow-card);
  -webkit-backdrop-filter:blur(18px) saturate(140%);backdrop-filter:blur(18px) saturate(140%);
  overflow:hidden;
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.card::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(43,199,232,.65),transparent);
  opacity:0;transition:opacity .25s var(--ease);
}
.card:hover{transform:translateY(-4px);border-color:rgba(43,199,232,.3);box-shadow:0 26px 54px -26px rgba(0,0,0,.95)}
.card:hover::before{opacity:1}
.feature-main{padding:0 0 30px}
.feature-main img{width:100%;aspect-ratio:16/9;object-fit:cover}
.feature-body{padding:26px 30px 0}
.feature-body h3{font-size:21px;margin-top:14px}
.feature-body p{margin-top:12px;color:var(--text-2);font-size:15px}
.feature-more{
  display:inline-flex;align-items:center;gap:8px;margin-top:20px;
  font-size:14px;font-weight:600;color:var(--brand);transition:gap .2s var(--ease),color .2s var(--ease);
}
.feature-main:hover .feature-more{gap:12px;color:var(--mint)}
.feature-side{display:grid;gap:24px}
.mini-card{display:flex;gap:18px;padding:20px;align-items:center}
.mini-card img{width:96px;height:96px;flex:0 0 auto;border-radius:var(--r-sm);object-fit:cover}
.mini-card h3{font-size:17px;line-height:1.45}
.mini-card time{display:block;margin-top:8px;font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums}

/* ---------- Trust ---------- */
.trust{background:linear-gradient(180deg,rgba(12,20,32,.6),rgba(7,12,20,0))}
.trust-stats{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.trust-stats li{padding:34px 26px;border-left:1px solid var(--line)}
.trust-stats li:first-child{border-left:none}
.trust-stats strong{display:block;font-size:34px;font-weight:700;color:var(--text-1);letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.trust-stats strong em{font-style:normal;font-size:16px;font-weight:600;color:var(--mint);margin-left:3px}
.trust-stats span{display:block;margin-top:8px;font-size:13px;color:var(--text-3)}
.logo-wall{display:grid;grid-template-columns:repeat(6,1fr);gap:16px;margin-top:48px}
.logo-wall li{
  height:78px;display:flex;align-items:center;justify-content:center;border-radius:var(--r-sm);
  background:rgba(255,255,255,.035);border:1px solid var(--line);
  font-size:14px;font-weight:600;color:var(--text-3);letter-spacing:.06em;
  filter:grayscale(1);opacity:.45;
  transition:filter .25s var(--ease),opacity .25s var(--ease),border-color .25s var(--ease),transform .25s var(--ease);
}
.logo-wall li:hover{filter:grayscale(0);opacity:1;color:var(--text-1);border-color:rgba(43,199,232,.35);transform:translateY(-3px)}

/* ---------- News list ---------- */
.news-panel{border-radius:var(--r-card);border:1px solid var(--line);background:rgba(255,255,255,.02);overflow:hidden}
.news-list{display:block}
.news-row{
  position:relative;display:grid;grid-template-columns:104px 112px minmax(0,1fr) 28px;gap:18px;align-items:center;
  padding:22px 20px 22px 24px;border-bottom:1px solid var(--line);
  transition:background .2s var(--ease);
}
.news-row:last-child{border-bottom:none}
.news-row::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;border-radius:3px;
  background:linear-gradient(180deg,var(--brand),var(--accent));
  transform:scaleY(0);transform-origin:center;transition:transform .22s var(--ease);
}
.news-row:hover{background:rgba(255,255,255,.035)}
.news-row:hover::before{transform:scaleY(1)}
.news-date{font-size:13px;color:var(--brand);font-variant-numeric:tabular-nums;letter-spacing:.02em}
.news-cat{
  justify-self:start;font-size:12px;font-weight:500;padding:3px 11px;border-radius:999px;
  background:rgba(63,224,176,.10);border:1px solid rgba(63,224,176,.28);color:var(--mint);
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%;
}
.news-body{min-width:0}
.news-title{display:block;font-size:16px;font-weight:600;color:var(--text-1);transition:color .2s var(--ease)}
.news-row:hover .news-title{color:var(--brand)}
.news-summary{
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  margin-top:6px;font-size:14px;color:var(--text-3);line-height:1.7;
}
.news-arrow{
  width:28px;height:28px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line);color:var(--text-3);
  transition:border-color .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.news-row:hover .news-arrow{border-color:rgba(43,199,232,.55);color:var(--brand);transform:translateX(3px)}
.news-empty{
  min-height:190px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;
  padding:32px;text-align:center;
}
.news-empty svg{width:34px;height:34px;color:var(--text-3)}
.news-empty .main{font-size:15px;color:var(--text-2)}
.news-empty .sub{font-size:13px;color:var(--text-3)}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:820px;margin:0 auto;display:grid;gap:14px}
.faq-item{
  border:1px solid var(--line);border-radius:16px;background:rgba(255,255,255,.035);
  overflow:hidden;transition:border-color .22s var(--ease),background .22s var(--ease);
}
.faq-item:hover{border-color:rgba(43,199,232,.28)}
.faq-item[open]{border-left:3px solid var(--accent);background:rgba(255,255,255,.055)}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;font-size:16px;font-weight:600;cursor:pointer;list-style:none;
}
.faq-q::-webkit-details-marker{display:none}
.faq-q:focus-visible{outline:2px solid var(--brand);outline-offset:-2px}
.faq-icon{
  flex:0 0 auto;width:22px;height:22px;position:relative;
  transition:transform .28s var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--brand);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:14px;height:2px}
.faq-icon::after{width:2px;height:14px}
.faq-item[open] .faq-icon{transform:rotate(135deg)}
.faq-item[open] .faq-icon::before,.faq-item[open] .faq-icon::after{background:var(--accent)}
.faq-a{padding:0 24px 22px;font-size:15px;line-height:1.8;color:var(--text-2);border-top:1px solid rgba(255,255,255,.05);padding-top:16px;margin:0 24px 22px;padding-left:0;padding-right:0}

/* ---------- CTA ---------- */
.cta{padding:0 0 96px}
.cta-card{
  display:grid;grid-template-columns:1.15fr 1fr;gap:48px;align-items:center;
  padding:52px 56px;border-radius:24px;
  background:linear-gradient(155deg,rgba(43,199,232,.10),rgba(255,255,255,.025) 45%,rgba(242,166,75,.08));
  border:1px solid var(--line);
  -webkit-backdrop-filter:blur(18px) saturate(140%);backdrop-filter:blur(18px) saturate(140%);
  box-shadow:var(--shadow-card);
}
.cta-card h2{font-size:clamp(24px,2.6vw,34px);margin-top:14px}
.cta-card p{margin-top:14px;color:var(--text-2);font-size:15px}
.subscribe{display:flex;gap:12px;flex-wrap:wrap}
.subscribe input{
  flex:1 1 220px;min-width:0;padding:14px 18px;border-radius:12px;
  background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--text-1);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
}
.subscribe input::placeholder{color:var(--text-3)}
.subscribe input:focus{
  outline:none;border-color:var(--brand);background:rgba(43,199,232,.07);
  box-shadow:0 0 0 3px rgba(43,199,232,.18);
}
.subscribe input.error{border-color:var(--error);box-shadow:0 0 0 3px rgba(242,96,75,.16)}
.form-hint{margin-top:12px;font-size:12px;color:var(--text-3)}
.form-msg{
  display:none;margin-top:16px;padding:12px 16px;border-radius:12px;font-size:14px;
  background:rgba(53,208,138,.12);border-left:3px solid var(--success);color:var(--text-1);
}
.form-msg.show{display:block}
.form-msg.fail{background:rgba(242,96,75,.12);border-left-color:var(--error)}

/* ---------- Footer ---------- */
.site-footer{background:#05090F;border-top:1px solid var(--line)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:44px;padding:72px 0 52px}
.footer-brand .brand{margin-bottom:18px;padding:0}
.footer-brand p{font-size:14px;color:var(--text-3);max-width:300px}
.socials{display:flex;gap:10px;margin-top:22px}
.socials a{
  width:38px;height:38px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.04);border:1px solid var(--line);color:var(--text-2);
  transition:border-color .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.socials a:hover{border-color:rgba(43,199,232,.5);color:var(--brand);transform:translateY(-2px)}
.footer-col h3{font-size:14px;font-weight:600;letter-spacing:.08em;color:var(--text-1);margin-bottom:18px}
.footer-col li{margin-bottom:12px}
.footer-col a,.footer-col span{font-size:14px;color:var(--text-3);transition:color .2s var(--ease),transform .2s var(--ease)}
.footer-col a{display:inline-block}
.footer-col a:hover{color:var(--brand);transform:translateX(2px)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px 24px;align-items:center;justify-content:space-between;
  padding:22px 0 30px;border-top:1px solid var(--line);font-size:13px;color:var(--text-3);
}
.footer-bottom .links{display:flex;flex-wrap:wrap;gap:18px}
.footer-bottom a:hover{color:var(--brand)}

/* ---------- Responsive ---------- */
@media (max-width:1280px){
  .story-media{margin-left:0}
}
@media (max-width:1024px){
  .nav-side{display:none}
  .nav-toggle{display:inline-flex}
  .section{padding:72px 0}
  .hero{padding:130px 0 68px}
  .hero-inner{grid-template-columns:1fr;gap:44px}
  .hero-visual{max-width:620px}
  .hero-float{right:12px;bottom:-16px}
  .feature-grid{grid-template-columns:1fr}
  .feature-side{grid-template-columns:1fr 1fr}
  .story-grid{grid-template-columns:1fr;gap:40px}
  .story-media img{aspect-ratio:16/10}
  .trust-stats{grid-template-columns:1fr 1fr}
  .trust-stats li:nth-child(odd){border-left:none}
  .trust-stats li:nth-child(n+3){border-top:1px solid var(--line)}
  .logo-wall{grid-template-columns:repeat(3,1fr)}
  .cta-card{grid-template-columns:1fr;gap:32px;padding:40px 32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;padding:56px 0 40px}
}
@media (max-width:768px){
  .container{padding:0 18px}
  .hero{padding:118px 0 56px}
  .hero-copy h1{font-size:clamp(27px,7vw,36px)}
  .hero-stats{grid-template-columns:1fr 1fr;gap:16px 20px;margin-top:40px}
  .hero-float{position:static;margin-top:16px;right:auto;bottom:auto}
  .brand-strip-inner{flex-direction:column;align-items:flex-start;gap:12px}
  .brand-strip-inner .chip{margin-left:0}
  .news-row{grid-template-columns:1fr;gap:8px;padding:20px 18px}
  .news-arrow{display:none}
  .news-cat{justify-self:start}
  .news-summary{-webkit-line-clamp:3}
  .section{padding:56px 0}
  .section-head{margin-bottom:34px}
  .trust-stats li{padding:26px 18px}
  .trust-stats strong{font-size:28px}
  .logo-wall{grid-template-columns:repeat(2,1fr);gap:12px}
  .cta{padding-bottom:64px}
  .cta-card{padding:32px 22px;border-radius:20px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .feature-side{grid-template-columns:1fr}
  .mini-card img{width:78px;height:78px}
  .hero-stats{grid-template-columns:1fr}
  .hero-actions .btn{width:100%}
  .subscribe .btn{width:100%}
  .trust-stats{grid-template-columns:1fr}
  .trust-stats li{border-left:none;border-top:1px solid var(--line)}
  .trust-stats li:first-child{border-top:none}
}

/* roulang page: article */
:root{
  --bg-base:#070C14;
  --bg-elev-1:#0C1420;
  --bg-elev-2:#111C2B;
  --brand:#2BC7E8;
  --brand-deep:#16689F;
  --accent:#F2A64B;
  --mint:#3FE0B0;
  --success:#35D08A;
  --warning:#F2A64B;
  --error:#F2604B;
  --info:#2BC7E8;
  --text-1:#EAF2FA;
  --text-2:#A7B6C8;
  --text-3:#6C7C90;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --glass:rgba(255,255,255,.045);
  --glass-grad:linear-gradient(160deg, rgba(255,255,255,.07), rgba(255,255,255,.02));
  --r-card:18px;
  --r-media:14px;
  --r-pill:999px;
  --r-input:12px;
  --shadow-card:0 18px 40px -24px rgba(0,0,0,.85);
  --shadow-btn:0 12px 32px -10px rgba(242,166,75,.5);
  --ease:cubic-bezier(.2,.7,.3,1);
  --container:1240px;
  --content:1180px;
  --font-cn:"HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-num:"Inter",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  color:var(--text-1);
  background:
    radial-gradient(900px 520px at 78% -8%, rgba(43,199,232,.10), transparent 62%),
    radial-gradient(720px 460px at 8% 6%, rgba(242,166,75,.07), transparent 60%),
    var(--bg-base);
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--brand)}
button,input{font-family:inherit;font-size:inherit}
button{cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25}
p{margin:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums;letter-spacing:.01em}

/* ---------- Header / Nav ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  height:72px;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:height .25s var(--ease),background .25s var(--ease),border-color .25s var(--ease),backdrop-filter .25s var(--ease);
}
.site-header.is-scrolled{
  height:62px;
  background:rgba(7,12,20,.72);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
}
.header-inner{
  height:100%;
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:20px;
}
.nav-side{display:flex;align-items:center;gap:30px}
.nav-left{justify-content:flex-start}
.nav-right{justify-content:flex-end}
.nav-link{
  position:relative;
  font-size:15px;
  color:var(--text-2);
  padding:6px 2px;
  transition:color .2s var(--ease);
}
.nav-link::after{
  content:"";
  position:absolute;left:0;right:0;bottom:-4px;height:3px;border-radius:3px;
  background:linear-gradient(90deg,var(--brand),var(--accent));
  opacity:0;transform:scaleX(.4);
  transition:opacity .2s var(--ease),transform .2s var(--ease);
  box-shadow:0 0 14px rgba(43,199,232,.55);
}
.nav-link:hover{color:var(--text-1)}
.nav-link:hover::after,.nav-link.active::after{opacity:1;transform:scaleX(1)}
.nav-link.active{color:var(--text-1);font-weight:600}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  justify-self:center;white-space:nowrap;
}
.brand-mark{width:30px;height:30px;display:block;flex:0 0 auto}
.brand-mark svg{width:100%;height:100%;display:block}
.brand-text{
  font-size:19px;font-weight:700;letter-spacing:.02em;
  background:linear-gradient(92deg,#EAF2FA 12%,var(--brand) 62%,var(--accent) 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.brand:hover .brand-text{filter:brightness(1.08)}
.nav-toggle{
  display:none;
  justify-self:end;
  width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);
  background:var(--glass);
  color:var(--text-1);
  align-items:center;justify-content:center;
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.nav-toggle:hover{border-color:rgba(43,199,232,.5);background:rgba(43,199,232,.10)}
.nav-toggle span{display:block;width:18px;height:1.6px;background:currentColor;border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:1.6px;background:currentColor;border-radius:2px;
  transition:transform .22s var(--ease),top .22s var(--ease);
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-toggle.is-open span{background:transparent}
.nav-toggle.is-open span::before{top:0;transform:rotate(45deg)}
.nav-toggle.is-open span::after{top:0;transform:rotate(-45deg)}
.mobile-panel{
  display:none;
  position:absolute;top:100%;left:0;right:0;
  background:rgba(7,12,20,.95);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  border-bottom:1px solid var(--line);
  padding:12px 24px 22px;
}
.mobile-panel.is-open{display:block}
.mobile-panel a{
  display:block;
  padding:14px 4px;
  font-size:18px;
  text-align:center;
  color:var(--text-2);
  border-bottom:1px solid var(--line);
  opacity:0;transform:translateY(-6px);
  animation:panelIn .34s var(--ease) forwards;
}
.mobile-panel a.active{color:var(--brand);font-weight:600}
.mobile-panel a:last-child{border-bottom:none}
@keyframes panelIn{to{opacity:1;transform:translateY(0)}}

/* ---------- Article hero ---------- */
.article-hero{
  position:relative;
  padding:140px 0 44px;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.article-hero::before{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:32px 32px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.75),transparent 78%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.75),transparent 78%);
  pointer-events:none;
}
.article-hero::after{
  content:"";position:absolute;right:-140px;top:-80px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(43,199,232,.14),transparent 66%);
  pointer-events:none;
}
.article-hero .container{position:relative;z-index:1}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--text-3);
  margin-bottom:22px;
}
.breadcrumb a{color:var(--text-2)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:var(--text-3);opacity:.7}
.breadcrumb .current{color:var(--text-3);max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:500;letter-spacing:.08em;
  padding:5px 12px;border-radius:var(--r-pill);
  color:var(--mint);
  background:rgba(63,224,176,.10);
  border:1px solid rgba(63,224,176,.28);
}
.chip-space{margin-bottom:16px}
h1.article-title{
  font-size:clamp(30px,4.4vw,54px);
  line-height:1.15;
  font-weight:700;
  max-width:960px;
  letter-spacing:-.01em;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  margin-top:22px;
  font-size:13px;color:var(--text-3);
}
.article-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--text-3);opacity:.6}
.article-meta .num{color:var(--text-2)}
.article-meta .meta-brand{color:var(--accent)}

/* ---------- Article cover ---------- */
.article-stage{padding:56px 0 0}
.article-cover{
  width:100%;
  max-width:940px;
  margin:0 auto;
  border-radius:20px;
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  position:relative;
  aspect-ratio:16/9;
  background:var(--bg-elev-1);
}
.article-cover img{width:100%;height:100%;object-fit:cover}
.article-cover figcaption{
  position:absolute;left:0;right:0;bottom:0;
  padding:34px 20px 12px;
  font-size:12px;color:var(--text-2);
  background:linear-gradient(180deg,transparent,rgba(7,12,20,.86));
}

/* ---------- Layout ---------- */
.article-layout{
  display:grid;
  grid-template-columns:1fr;
  gap:48px;
  padding:44px 0 96px;
  max-width:var(--content);
  margin:0 auto;
}
.article-body{max-width:760px;margin:0 auto;width:100%}

/* ---------- Prose ---------- */
.prose-cn{font-size:17px;line-height:1.9;color:var(--text-2)}
.prose-cn > * + *{margin-top:18px}
.prose-cn p{color:var(--text-2)}
.prose-cn strong{color:var(--text-1);font-weight:600}
.prose-cn h2{
  position:relative;
  margin:44px 0 16px;
  padding-left:16px;
  font-size:clamp(24px,2.8vw,32px);
  line-height:1.35;
  color:var(--text-1);
}
.prose-cn h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:3px;border-radius:3px;
  background:linear-gradient(180deg,var(--brand),var(--accent));
  box-shadow:0 0 14px rgba(43,199,232,.5);
}
.prose-cn h3{margin:32px 0 12px;font-size:20px;color:var(--text-1)}
.prose-cn h4{margin:26px 0 10px;font-size:17px;color:var(--text-1)}
.prose-cn ul,.prose-cn ol{padding-left:6px;display:grid;gap:10px}
.prose-cn ul li,.prose-cn ol li{position:relative;padding-left:20px}
.prose-cn ul li::before{
  content:"";position:absolute;left:0;top:.72em;width:7px;height:7px;border-radius:2px;
  background:var(--brand);box-shadow:0 0 10px rgba(43,199,232,.55);
}
.prose-cn ol{counter-reset:item}
.prose-cn ol li{counter-increment:item}
.prose-cn ol li::before{
  content:counter(item);
  position:absolute;left:0;top:.15em;
  width:18px;height:18px;border-radius:6px;
  font-family:var(--font-num);font-size:11px;line-height:18px;text-align:center;
  color:var(--bg-base);background:var(--accent);
}
.prose-cn blockquote{
  margin:26px 0;
  padding:18px 20px;
  border-left:4px solid var(--accent);
  border-radius:0 var(--r-media) var(--r-media) 0;
  background:var(--glass-grad);
  color:var(--text-1);
}
.prose-cn blockquote p{color:var(--text-1)}
.prose-cn img{border-radius:var(--r-media);margin:26px auto 8px;width:100%}
.prose-cn figure{margin:26px 0}
.prose-cn figcaption{
  text-align:center;font-size:13px;color:var(--text-3);margin-top:10px;
}
.prose-cn a{color:var(--brand);border-bottom:1px solid rgba(43,199,232,.35)}
.prose-cn a:hover{border-bottom-color:var(--brand)}
.prose-cn table{
  width:100%;border-collapse:collapse;font-size:14px;
  border:1px solid var(--line);border-radius:var(--r-media);overflow:hidden;
  display:block;overflow-x:auto;white-space:nowrap;
}
.prose-cn thead th{
  background:var(--glass-grad);
  color:var(--text-1);font-weight:600;text-align:left;
}
.prose-cn th,.prose-cn td{padding:11px 14px;border-bottom:1px solid var(--line)}
.prose-cn tbody tr:nth-child(even){background:rgba(255,255,255,.022)}
.prose-cn hr{border:none;border-top:1px solid var(--line);margin:34px 0}
.prose-cn code{
  font-family:var(--font-num);font-size:.9em;
  background:rgba(43,199,232,.10);border:1px solid rgba(43,199,232,.22);
  padding:2px 6px;border-radius:6px;color:var(--brand);
}

/* ---------- Empty state ---------- */
.empty-state{
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:14px;min-height:280px;text-align:center;
  padding:48px 24px;
  border:1px solid var(--line);border-radius:var(--r-card);
  background:var(--glass-grad);
  box-shadow:var(--shadow-card);
}
.empty-state svg{width:46px;height:46px;color:var(--brand);opacity:.85}
.empty-state h2{font-size:22px;color:var(--text-1);padding:0;margin:0}
.empty-state h2::before{display:none}
.empty-state p{font-size:14px;color:var(--text-3);max-width:420px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),filter .2s var(--ease);
}
.btn-primary{
  color:#12100B;
  background:linear-gradient(120deg,var(--accent),#F7C079);
  box-shadow:var(--shadow-btn),inset 0 0 0 1px rgba(242,166,75,.35);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 18px 40px -12px rgba(242,166,75,.62)}
.btn-primary:active{transform:translateY(-1px);box-shadow:0 8px 22px -12px rgba(242,166,75,.5)}
.btn-ghost{
  color:var(--text-1);
  background:var(--glass);
  border-color:var(--line-strong);
  backdrop-filter:blur(10px);
}
.btn-ghost:hover{border-color:rgba(43,199,232,.55);color:var(--brand);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(-1px)}

/* ---------- Article footer tools ---------- */
.article-tools{
  margin-top:44px;padding-top:26px;
  border-top:1px solid var(--line);
}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.tag-row .label{font-size:12px;letter-spacing:.08em;color:var(--text-3)}
.tag{
  font-size:12px;font-weight:500;letter-spacing:.06em;
  padding:5px 12px;border-radius:var(--r-pill);
  color:var(--brand);background:rgba(43,199,232,.10);
  border:1px solid rgba(43,199,232,.26);
  transition:background .2s var(--ease),transform .2s var(--ease);
}
.tag:hover{background:rgba(43,199,232,.18);transform:translateY(-2px)}
.tool-bar{
  margin-top:22px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
}
.share-row{display:flex;align-items:center;gap:10px}
.share-row .label{font-size:12px;letter-spacing:.08em;color:var(--text-3)}
.icon-btn{
  width:38px;height:38px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:12px;border:1px solid var(--line);background:var(--glass);color:var(--text-2);
  transition:color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease),background .2s var(--ease);
}
.icon-btn:hover{color:var(--brand);border-color:rgba(43,199,232,.5);background:rgba(43,199,232,.10);transform:translateY(-2px)}
.icon-btn svg{width:17px;height:17px}
.text-link{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;color:var(--text-2);
}
.text-link:hover{color:var(--brand)}
.text-link svg{width:15px;height:15px;transition:transform .2s var(--ease)}
.text-link:hover svg{transform:translateX(3px)}

/* ---------- Aside ---------- */
.article-aside{display:none}
.aside-card{
  border:1px solid var(--line);border-radius:var(--r-card);
  background:var(--glass-grad);
  box-shadow:var(--shadow-card);
  padding:22px 20px;
  backdrop-filter:blur(18px) saturate(140%);
}
.aside-card + .aside-card{margin-top:22px}
.aside-card h3{
  font-size:14px;letter-spacing:.08em;color:var(--text-1);
  padding-bottom:14px;margin-bottom:14px;border-bottom:1px solid var(--line);
}
.aside-list{display:grid;gap:12px}
.aside-list a{
  display:flex;align-items:flex-start;gap:10px;
  font-size:14px;color:var(--text-2);line-height:1.6;
}
.aside-list a:hover{color:var(--brand)}
.aside-list .idx{
  font-family:var(--font-num);font-size:12px;color:var(--brand);
  flex:0 0 auto;padding-top:2px;
}
.aside-note{font-size:13px;color:var(--text-3);line-height:1.75}
.aside-cta{
  margin-top:16px;width:100%;
}

/* ---------- Related ---------- */
.related{padding:8px 0 96px}
.section-head{margin-bottom:30px}
.section-head .eyebrow{
  font-size:12px;letter-spacing:.14em;color:var(--brand);text-transform:uppercase;
}
.section-head h2{
  margin-top:10px;
  font-size:clamp(24px,2.8vw,32px);
  color:var(--text-1);
}
.section-head p{margin-top:10px;font-size:15px;color:var(--text-3);max-width:620px}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.rel-card{
  display:flex;gap:14px;align-items:flex-start;
  padding:18px;
  border:1px solid var(--line);border-radius:var(--r-card);
  background:var(--glass-grad);
  box-shadow:var(--shadow-card);
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
  position:relative;overflow:hidden;
}
.rel-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(43,199,232,.75),transparent);
  opacity:0;transition:opacity .2s var(--ease);
}
.rel-card:hover{transform:translateY(-4px);border-color:rgba(43,199,232,.35);box-shadow:0 24px 48px -26px rgba(0,0,0,.95)}
.rel-card:hover::before{opacity:1}
.rel-thumb{
  flex:0 0 auto;width:80px;height:80px;border-radius:var(--r-media);overflow:hidden;
  border:1px solid var(--line);background:var(--bg-elev-2);
}
.rel-thumb img{width:100%;height:100%;object-fit:cover}
.rel-body h3{font-size:16px;line-height:1.5;color:var(--text-1)}
.rel-body p{margin-top:8px;font-size:13px;color:var(--text-3);line-height:1.7}
.rel-meta{margin-top:10px;font-size:12px;color:var(--text-3)}

/* ---------- Subscribe CTA ---------- */
.subscribe{padding:0 0 96px}
.sub-card{
  position:relative;overflow:hidden;
  border:1px solid var(--line);border-radius:24px;
  background:linear-gradient(140deg,rgba(43,199,232,.10),rgba(242,166,75,.07) 55%,rgba(255,255,255,.02));
  backdrop-filter:blur(18px) saturate(140%);
  box-shadow:var(--shadow-card);
  padding:44px;
  display:grid;grid-template-columns:1.15fr 1fr;gap:36px;align-items:center;
}
.sub-card::after{
  content:"";position:absolute;right:-90px;bottom:-120px;width:380px;height:380px;border-radius:50%;
  background:radial-gradient(circle,rgba(43,199,232,.18),transparent 68%);
  pointer-events:none;
}
.sub-copy{position:relative;z-index:1}
.sub-copy h2{font-size:clamp(24px,2.6vw,32px);color:var(--text-1)}
.sub-copy p{margin-top:12px;font-size:15px;color:var(--text-2);max-width:460px}
.sub-form{position:relative;z-index:1}
.form-row{display:flex;gap:12px}
.form-row input{
  flex:1 1 auto;min-width:0;
  height:50px;padding:0 16px;
  border-radius:var(--r-input);
  border:1px solid var(--line-strong);
  background:rgba(7,12,20,.55);
  color:var(--text-1);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
}
.form-row input::placeholder{color:var(--text-3)}
.form-row input:focus{
  outline:none;border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(43,199,232,.18);
  background:rgba(7,12,20,.75);
}
.form-row .btn{height:50px;flex:0 0 auto}
.form-note{margin-top:12px;font-size:12px;color:var(--text-3);line-height:1.7}
.form-feedback{
  display:none;margin-top:14px;padding:11px 14px;font-size:13px;border-radius:10px;
  border-left:3px solid var(--success);background:rgba(53,208,138,.12);color:var(--text-1);
}
.form-feedback.is-visible{display:block}
.form-feedback.is-error{border-left-color:var(--error);background:rgba(242,96,75,.12)}

/* ---------- Footer ---------- */
.site-footer{
  border-top:1px solid var(--line);
  background:#050A11;
  padding:66px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:36px;
  padding-bottom:48px;
}
.footer-brand .brand{justify-self:flex-start;margin-bottom:16px}
.footer-brand p{font-size:14px;color:var(--text-3);max-width:300px;line-height:1.8}
.socials{display:flex;gap:10px;margin-top:20px}
.socials a{
  width:36px;height:36px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:11px;border:1px solid var(--line);background:var(--glass);color:var(--text-2);
  transition:color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease),background .2s var(--ease);
}
.socials a:hover{color:var(--brand);border-color:rgba(43,199,232,.5);background:rgba(43,199,232,.10);transform:translateY(-2px)}
.footer-col h3{
  font-size:14px;letter-spacing:.08em;color:var(--text-1);
  margin-bottom:18px;
}
.footer-col ul{display:grid;gap:12px}
.footer-col li a,.footer-col li span{
  font-size:14px;color:var(--text-3);display:inline-block;
  transition:color .2s var(--ease),transform .2s var(--ease);
}
.footer-col li a:hover{color:var(--brand);transform:translateX(2px)}
.contact-list{display:grid;gap:12px}
.contact-list li{display:flex;gap:10px;font-size:14px;color:var(--text-3);line-height:1.7}
.contact-list svg{width:16px;height:16px;flex:0 0 auto;margin-top:5px;color:var(--brand)}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:20px 0 26px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  font-size:13px;color:var(--text-3);
}
.footer-bottom .links{display:flex;flex-wrap:wrap;gap:18px}
.footer-bottom a{color:var(--text-3)}
.footer-bottom a:hover{color:var(--brand)}

/* ---------- Responsive ---------- */
@media (max-width:1280px){
  .related-grid{grid-template-columns:repeat(3,1fr)}
}
@media (min-width:1200px){
  .article-layout{grid-template-columns:minmax(0,1fr) 300px;gap:56px}
  .article-aside{display:block}
  .article-aside .aside-inner{position:sticky;top:100px}
}
@media (max-width:1024px){
  .nav-side{display:none}
  .header-inner{grid-template-columns:auto 1fr auto}
  .brand{justify-self:center}
  .nav-toggle{display:inline-flex}
  .article-cover{max-width:100%}
  .related-grid{grid-template-columns:1fr 1fr}
  .sub-card{grid-template-columns:1fr;padding:34px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media (max-width:768px){
  .container{padding:0 18px}
  .article-hero{padding:124px 0 34px}
  .article-stage{padding-top:40px}
  .article-layout{padding:34px 0 72px;gap:36px}
  .prose-cn{font-size:16.5px}
  .related{padding-bottom:72px}
  .subscribe{padding-bottom:72px}
  .related-grid{grid-template-columns:1fr}
  .tool-bar{flex-direction:column;align-items:flex-start}
  .form-row{flex-direction:column}
  .form-row .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:36px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .brand-text{font-size:17px}
  .brand-mark{width:26px;height:26px}
  .article-meta{gap:10px;font-size:12.5px}
  .breadcrumb .current{max-width:180px}
  .sub-card{padding:26px 20px;border-radius:20px}
  .rel-thumb{width:64px;height:64px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;transition-duration:.01ms !important}
}

/* roulang page: category1 */
:root{
  --bg-base:#070C14;
  --bg-elev-1:#0C1420;
  --bg-elev-2:#111C2B;
  --brand:#2BC7E8;
  --brand-deep:#16689F;
  --accent:#F2A64B;
  --mint:#3FE0B0;
  --text-1:#EAF2FA;
  --text-2:#A7B6C8;
  --text-3:#6C7C90;
  --line:rgba(255,255,255,.08);
  --glass:rgba(255,255,255,.045);
  --glass-grad:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  --radius-card:18px;
  --radius-sm:14px;
  --radius-pill:999px;
  --shadow-card:0 18px 40px -24px rgba(0,0,0,.85);
  --shadow-btn:0 12px 32px -10px rgba(242,166,75,.5);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font-cn:"HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-num:"Inter","SFMono-Regular",ui-monospace,Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding-top:72px;
  background:var(--bg-base);
  color:var(--text-1);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--brand);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:#63DCF5;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.01em;color:var(--text-1);}
h1{font-size:clamp(30px,4.4vw,54px);line-height:1.15;}
h2{font-size:clamp(24px,2.8vw,36px);line-height:1.25;}
h3{font-size:20px;line-height:1.4;}
p{margin:0;max-width:760px;color:var(--text-2);}
button,input{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;background:none;border:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  height:72px;display:flex;align-items:center;
  background:transparent;
  transition:height .25s var(--ease),background .25s var(--ease),border-color .25s var(--ease);
  border-bottom:1px solid transparent;
}
.site-header.scrolled{
  height:62px;
  background:rgba(7,12,20,.72);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom-color:var(--line);
}
.header-inner{
  display:grid;grid-template-columns:1fr auto 1fr;align-items:center;
  gap:18px;position:relative;width:100%;
}
.nav-side{display:flex;align-items:center;gap:28px;}
.nav-left{justify-content:flex-start;}
.nav-right{justify-content:flex-end;}
.nav-link{
  position:relative;font-size:15px;color:var(--text-2);padding:6px 2px;
  transition:color .2s var(--ease);
}
.nav-link:hover{color:var(--text-1);}
.nav-link.active{color:var(--text-1);font-weight:500;}
.nav-link.active::after{
  content:"";position:absolute;left:0;right:0;bottom:-6px;height:3px;border-radius:3px;
  background:linear-gradient(90deg,var(--brand),var(--accent));
  box-shadow:0 0 12px rgba(43,199,232,.65);
}
.brand{display:inline-flex;align-items:center;gap:10px;justify-self:center;}
.brand-mark{width:32px;height:32px;display:block;flex:none;}
.brand-mark svg{width:100%;height:100%;display:block;}
.brand-text{
  font-size:19px;font-weight:700;letter-spacing:.02em;
  background:linear-gradient(100deg,#EAF2FA 20%,#2BC7E8 60%,#F2A64B 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  white-space:nowrap;
}
.nav-toggle{
  display:none;position:absolute;right:0;top:50%;transform:translateY(-50%);
  width:42px;height:38px;border-radius:10px;border:1px solid var(--line);
  background:var(--glass);align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:1.6px;background:var(--text-1);border-radius:2px;transition:transform .25s var(--ease),opacity .2s var(--ease);}
.nav-toggle.open span:nth-child(1){transform:translateY(6.6px) rotate(45deg);}
.nav-toggle.open span:nth-child(2){opacity:0;}
.nav-toggle.open span:nth-child(3){transform:translateY(-6.6px) rotate(-45deg);}
.mobile-nav{
  position:fixed;top:72px;left:0;right:0;z-index:55;
  background:rgba(7,12,20,.94);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
  padding:10px 24px 22px;
  display:none;flex-direction:column;
}
.mobile-nav.open{display:flex;}
.mobile-nav a{
  font-size:18px;color:var(--text-2);text-align:center;padding:14px 0;
  border-bottom:1px solid var(--line);
  opacity:0;animation:fadeUp .32s var(--ease) forwards;
}
.mobile-nav a:last-child{border-bottom:none;}
.mobile-nav a.active{color:var(--brand);}
.mobile-nav a:nth-child(1){animation-delay:.04s;}
.mobile-nav a:nth-child(2){animation-delay:.08s;}
.mobile-nav a:nth-child(3){animation-delay:.12s;}
.mobile-nav a:nth-child(4){animation-delay:.16s;}
@keyframes fadeUp{from{opacity:0;transform:translateY(-6px);}to{opacity:1;transform:translateY(0);}}

/* ---------- 通用组件 ---------- */
.chip{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:500;letter-spacing:.08em;
  padding:6px 13px;border-radius:var(--radius-pill);
  background:rgba(43,199,232,.12);border:1px solid rgba(43,199,232,.35);color:#9BE6F7;
}
.chip-accent{background:rgba(242,166,75,.12);border-color:rgba(242,166,75,.35);color:#F8C98A;}
.chip-mint{background:rgba(63,224,176,.12);border-color:rgba(63,224,176,.32);color:#8FEFD4;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:500;line-height:1;white-space:nowrap;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease),filter .2s var(--ease);
}
.btn-primary{
  background:linear-gradient(120deg,#F2A64B,#E08B2C);
  color:#14100A;font-weight:700;
  box-shadow:var(--shadow-btn),inset 0 0 0 1px rgba(242,166,75,.4);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px);color:#14100A;}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 18px -10px rgba(242,166,75,.5);}
.btn-ghost{
  background:var(--glass);border:1px solid var(--line);color:var(--text-1);
}
.btn-ghost:hover{border-color:rgba(43,199,232,.5);color:#9BE6F7;transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.section{padding:96px 0;}
.sec-head{max-width:760px;margin-bottom:44px;}
.sec-head h2{margin:16px 0 14px;}
.sec-lead{font-size:16px;line-height:1.85;}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums;}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:84px 0 76px;border-bottom:1px solid var(--line);}
.hero-bg{
  position:absolute;inset:0;
  background-image:
    linear-gradient(100deg,rgba(7,12,20,.94) 12%,rgba(7,12,20,.72) 52%,rgba(7,12,20,.9) 100%),
    url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(620px 320px at 18% 18%,rgba(43,199,232,.13),transparent 70%),
    radial-gradient(520px 300px at 88% 82%,rgba(242,166,75,.10),transparent 72%);
}
.hero-inner{position:relative;z-index:2;}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:22px;flex-wrap:wrap;}
.breadcrumb a{color:var(--text-3);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .current{color:var(--text-2);}
.hero h1{max-width:840px;margin:16px 0 18px;}
.hero-sub{font-size:17px;max-width:660px;}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:30px;}
.hero-stats{
  display:flex;gap:38px;flex-wrap:wrap;
  margin-top:44px;padding-top:26px;border-top:1px solid var(--line);
}
.hero-stats li{display:flex;flex-direction:column;gap:2px;}
.hero-stats strong{font-family:var(--font-num);font-size:26px;font-weight:700;color:var(--brand);letter-spacing:.01em;}
.hero-stats span{font-size:12px;color:var(--text-3);letter-spacing:.04em;}

/* ---------- 直播能力 ---------- */
.section-abilities{padding:96px 0 84px;}
.ability-grid{
  display:grid;grid-template-columns:repeat(12,1fr);gap:24px;
}
.ability-card{
  grid-column:span 6;
  padding:32px 30px;border-radius:var(--radius-card);
  background:var(--glass-grad);
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  position:relative;overflow:hidden;
  transition:transform .2s var(--ease),border-color .2s var(--ease);
}
.ability-card::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(43,199,232,.7),transparent);
  opacity:0;transition:opacity .2s var(--ease);
}
.ability-card:hover{transform:translateY(-4px);border-color:rgba(43,199,232,.3);}
.ability-card:hover::before{opacity:1;}
.ability-card.wide{grid-column:span 7;padding:38px 34px;}
.ability-card.slim{grid-column:span 5;padding:28px 26px;}
.ability-icon{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  background:rgba(43,199,232,.12);border:1px solid rgba(43,199,232,.28);
  color:var(--brand);margin-bottom:18px;
}
.ability-icon svg{width:20px;height:20px;}
.ability-card h3{margin-bottom:10px;font-size:19px;}
.ability-card p{font-size:15px;line-height:1.8;color:var(--text-2);}
.ability-card.accent .ability-icon{background:rgba(242,166,75,.12);border-color:rgba(242,166,75,.3);color:var(--accent);}
.ability-card.mint .ability-icon{background:rgba(63,224,176,.12);border-color:rgba(63,224,176,.3);color:var(--mint);}

/* ---------- 赛程 ---------- */
.section-schedule{padding:84px 0 92px;background:var(--bg-elev-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.schedule-card{
  border-radius:var(--radius-card);border:1px solid var(--line);
  background:linear-gradient(170deg,rgba(255,255,255,.055),rgba(255,255,255,.015));
  -webkit-backdrop-filter:blur(18px) saturate(140%);backdrop-filter:blur(18px) saturate(140%);
  overflow:hidden;box-shadow:var(--shadow-card);
}
.schedule-head{
  display:grid;grid-template-columns:96px 150px 1fr 110px 120px;
  gap:16px;padding:16px 26px;
  font-size:12px;letter-spacing:.08em;color:var(--text-3);
  border-bottom:1px solid var(--line);background:rgba(255,255,255,.025);
}
.schedule-list li{
  position:relative;
  display:grid;grid-template-columns:96px 150px 1fr 110px 120px;
  gap:16px;align-items:center;padding:20px 26px;
  border-bottom:1px solid var(--line);
  transition:background .2s var(--ease);
}
.schedule-list li:last-child{border-bottom:none;}
.schedule-list li::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:linear-gradient(180deg,var(--brand),var(--brand-deep));
  opacity:0;transition:opacity .2s var(--ease);
}
.schedule-list li:hover{background:rgba(255,255,255,.035);}
.schedule-list li:hover::before{opacity:1;}
.match-time{font-family:var(--font-num);font-size:16px;color:var(--brand);font-weight:600;}
.match-time small{display:block;font-size:11px;color:var(--text-3);letter-spacing:.04em;font-weight:400;}
.match-league{font-size:13px;color:var(--text-2);}
.match-name{font-size:15px;color:var(--text-1);font-weight:500;}
.tag{
  display:inline-block;font-size:12px;padding:4px 11px;border-radius:var(--radius-pill);
  letter-spacing:.04em;
}
.tag-live{background:rgba(242,96,75,.14);border:1px solid rgba(242,96,75,.36);color:#F5988A;}
.tag-soon{background:rgba(43,199,232,.12);border:1px solid rgba(43,199,232,.32);color:#9BE6F7;}
.tag-done{background:rgba(108,124,144,.16);border:1px solid rgba(108,124,144,.34);color:var(--text-2);}
.row-link{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--accent);
  justify-self:end;white-space:nowrap;
}
.row-link:hover{color:#F8C98A;}
.row-link svg{width:14px;height:14px;transition:transform .2s var(--ease);}
.row-link:hover svg{transform:translateX(3px);}
.schedule-note{margin-top:18px;font-size:13px;color:var(--text-3);max-width:760px;}

/* ---------- 适用场景 ---------- */
.section-scene{padding:96px 0 88px;}
.scene-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;align-items:center;}
.scene-media{grid-column:2 / span 5;position:relative;}
.scene-media img{
  width:100%;border-radius:20px;border:1px solid var(--line);
  box-shadow:var(--shadow-card);aspect-ratio:4/3;object-fit:cover;
}
.scene-media .glass-badge{
  position:absolute;right:-16px;bottom:-16px;
  padding:14px 18px;border-radius:var(--radius-sm);
  background:rgba(12,20,32,.86);border:1px solid rgba(43,199,232,.28);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card);
}
.scene-media .glass-badge strong{display:block;font-family:var(--font-num);font-size:22px;color:var(--mint);line-height:1.2;}
.scene-media .glass-badge span{font-size:12px;color:var(--text-3);}
.scene-copy{grid-column:8 / span 5;}
.scene-copy h2{margin:16px 0 16px;}
.scene-list{margin-top:26px;display:flex;flex-direction:column;gap:16px;}
.scene-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--text-2);line-height:1.75;}
.dot{
  flex:none;width:8px;height:8px;border-radius:50%;margin-top:9px;
  background:var(--brand);box-shadow:0 0 10px rgba(43,199,232,.85);
}
.scene-list strong{color:var(--text-1);font-weight:500;}

/* ---------- 流程 ---------- */
.section-flow{padding:80px 0 88px;background:var(--bg-elev-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.steps{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:18px;margin-top:8px;}
.step{
  position:relative;padding:26px 20px 24px;border-radius:var(--radius-sm);
  background:var(--glass-grad);border:1px solid var(--line);
  transition:transform .2s var(--ease),border-color .2s var(--ease);
}
.step:hover{transform:translateY(-4px);border-color:rgba(43,199,232,.3);}
.step-num{
  width:38px;height:38px;border-radius:50%;display:grid;place-items:center;
  font-family:var(--font-num);font-weight:700;font-size:15px;color:var(--brand);
  background:rgba(43,199,232,.12);border:1px solid rgba(43,199,232,.35);
  margin-bottom:16px;
}
.step h3{font-size:16px;margin-bottom:8px;}
.step p{font-size:14px;line-height:1.75;color:var(--text-3);}
.step:not(:last-child)::after{
  content:"";position:absolute;top:45px;right:-19px;width:20px;height:1px;
  background:linear-gradient(90deg,rgba(43,199,232,.75),rgba(43,199,232,0));
}

/* ---------- 数据 ---------- */
.section-data{padding:72px 0 84px;}
.data-grid{
  display:grid;grid-template-columns:repeat(4,1fr);
  border-radius:var(--radius-card);border:1px solid var(--line);
  background:var(--glass-grad);overflow:hidden;
}
.data-cell{padding:34px 26px;border-right:1px solid var(--line);}
.data-cell:last-child{border-right:none;}
.data-cell strong{display:block;font-family:var(--font-num);font-size:clamp(26px,3vw,34px);font-weight:700;color:var(--text-1);line-height:1.2;}
.data-cell strong em{font-style:normal;color:var(--mint);font-size:.6em;margin-left:2px;}
.data-cell span{display:block;margin-top:8px;font-size:12px;color:var(--text-3);letter-spacing:.06em;}
.topic-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px;}

/* ---------- FAQ ---------- */
.section-faq{padding:96px 0 90px;background:var(--bg-elev-1);border-top:1px solid var(--line);}
.faq-wrap{max-width:820px;}
.faq-item{
  border:1px solid var(--line);border-radius:var(--radius-sm);
  background:var(--glass-grad);margin-bottom:14px;overflow:hidden;
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.faq-item[open]{border-color:rgba(43,199,232,.32);background:linear-gradient(160deg,rgba(43,199,232,.07),rgba(255,255,255,.015));}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;font-size:16px;font-weight:500;color:var(--text-1);
  cursor:pointer;list-style:none;border-left:3px solid transparent;
  transition:border-color .2s var(--ease);
}
.faq-q::-webkit-details-marker{display:none;}
.faq-item[open] .faq-q{border-left-color:var(--accent);}
.faq-icon{
  flex:none;width:22px;height:22px;position:relative;
  transition:transform .25s var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--text-2);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:13px;height:1.6px;}
.faq-icon::after{width:1.6px;height:13px;}
.faq-item[open] .faq-icon{transform:rotate(45deg);}
.faq-a{padding:0 22px 22px;font-size:15px;line-height:1.8;color:var(--text-2);max-width:700px;}

/* ---------- CTA ---------- */
.section-cta{padding:88px 0 96px;}
.cta-card{
  position:relative;overflow:hidden;
  border-radius:22px;border:1px solid var(--line);
  padding:52px 48px;
  background:
    linear-gradient(120deg,rgba(12,20,32,.94),rgba(12,20,32,.78)),
    url("/assets/images/coverpic/cover-2.webp");
  background-size:cover;background-position:center;
  box-shadow:var(--shadow-card);
  display:grid;grid-template-columns:1.05fr 1fr;gap:40px;align-items:center;
}
.cta-card::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(520px 260px at 88% 20%,rgba(43,199,232,.16),transparent 70%);
}
.cta-copy{position:relative;z-index:2;}
.cta-copy h2{margin-bottom:14px;}
.cta-form{position:relative;z-index:2;display:flex;gap:12px;flex-wrap:wrap;}
.cta-form input{
  flex:1 1 240px;min-width:0;
  padding:14px 18px;border-radius:12px;
  background:rgba(255,255,255,.05);border:1px solid var(--line);
  color:var(--text-1);font-size:15px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
}
.cta-form input::placeholder{color:var(--text-3);}
.cta-form input:focus{
  outline:none;border-color:var(--brand);
  box-shadow:0 0 0 4px rgba(43,199,232,.16);
  background:rgba(255,255,255,.075);
}
.privacy{position:relative;z-index:2;grid-column:1 / -1;font-size:12px;color:var(--text-3);margin-top:16px;}

/* ---------- Footer ---------- */
.site-footer{
  background:#05090F;border-top:1px solid var(--line);
  padding:64px 0 0;
}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;
  padding-bottom:48px;
}
.footer-brand .brand{justify-self:flex-start;margin-bottom:16px;}
.footer-brand p{font-size:14px;color:var(--text-3);max-width:320px;line-height:1.8;}
.socials{display:flex;gap:10px;margin-top:20px;}
.socials a{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  background:var(--glass);border:1px solid var(--line);color:var(--text-2);
  transition:color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.socials a:hover{color:var(--brand);border-color:rgba(43,199,232,.4);transform:translateY(-2px);}
.footer-col h3{font-size:15px;margin-bottom:18px;color:var(--text-1);}
.footer-col ul{display:flex;flex-direction:column;gap:12px;}
.footer-col a,.footer-col span{font-size:14px;color:var(--text-3);}
.footer-col a:hover{color:var(--brand);transform:translateX(2px);display:inline-block;}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:22px 0 26px;
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}
.footer-bottom p{max-width:none;color:var(--text-3);font-size:13px;}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  body{padding-top:72px;}
  .nav-side{display:none;}
  .nav-toggle{display:flex;}
  .container{padding:0 20px;}
  .section{padding:72px 0;}
  .section-abilities,.section-faq{padding:72px 0 64px;}
  .section-schedule,.section-flow{padding:64px 0 68px;}
  .ability-card,.ability-card.wide,.ability-card.slim{grid-column:span 12;padding:28px 26px;}
  .scene-media{grid-column:1 / span 12;}
  .scene-copy{grid-column:1 / span 12;margin-top:36px;}
  .scene-media .glass-badge{right:16px;bottom:-14px;}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;}
  .step:not(:last-child)::after{display:none;}
  .data-grid{grid-template-columns:repeat(2,1fr);}
  .data-cell:nth-child(2){border-right:none;}
  .data-cell:nth-child(1),.data-cell:nth-child(2){border-bottom:1px solid var(--line);}
  .cta-card{grid-template-columns:1fr;padding:40px 32px;gap:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .schedule-head{display:none;}
}
@media (max-width:768px){
  h1{font-size:clamp(26px,7vw,34px);}
  h2{font-size:clamp(22px,5.4vw,28px);}
  .hero{padding:64px 0 56px;}
  .hero-stats{gap:26px;}
  .hero-stats strong{font-size:22px;}
  .schedule-list li{
    grid-template-columns:1fr;gap:8px;padding:18px 20px;
  }
  .match-league{order:2;}
  .row-link{justify-self:flex-start;margin-top:6px;}
  .tag{align-self:flex-start;}
  .steps{grid-template-columns:1fr;}
  .data-grid{grid-template-columns:1fr;}
  .data-cell{border-right:none;border-bottom:1px solid var(--line);}
  .data-cell:last-child{border-bottom:none;}
  .cta-form{flex-direction:column;}
  .cta-form .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer-bottom{flex-direction:column;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .brand-text{font-size:17px;}
  .hero-actions{flex-direction:column;}
  .hero-actions .btn{width:100%;}
  .section{padding:56px 0;}
  .ability-card,.ability-card.wide,.ability-card.slim{padding:24px 20px;}
  .cta-card{padding:32px 20px;}
  .faq-q{padding:16px 16px;font-size:15px;}
  .faq-a{padding:0 16px 18px;}
}

/* roulang page: category2 */
:root{
  --bg-base:#070C14;
  --bg-elev-1:#0C1420;
  --bg-elev-2:#111C2B;
  --brand:#2BC7E8;
  --brand-deep:#16689F;
  --accent:#F2A64B;
  --mint:#3FE0B0;
  --text-1:#EAF2FA;
  --text-2:#A7B6C8;
  --text-3:#6C7C90;
  --line:rgba(255,255,255,.08);
  --glass:rgba(255,255,255,.045);
  --glass-strong:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  --radius-lg:18px;
  --radius-md:14px;
  --radius-pill:999px;
  --shadow-card:0 18px 40px -24px rgba(0,0,0,.85);
  --shadow-btn:0 12px 32px -10px rgba(242,166,75,.5);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font-cn:"HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-mono:"Inter","SFMono-Regular",Consolas,"Liberation Mono",monospace;
}
*{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  background:var(--bg-base);
  color:var(--text-1);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;}
button,input{font-family:inherit;font-size:inherit;color:inherit;}
button{background:none;border:0;cursor:pointer;}
ul,ol{list-style:none;}
h1,h2,h3{font-weight:700;line-height:1.25;letter-spacing:.01em;}
h1{font-size:clamp(30px,4.4vw,54px);line-height:1.15;}
h2{font-size:clamp(24px,2.8vw,36px);}
h3{font-size:20px;}
p{color:var(--text-2);max-width:760px;}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px;}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background .3s var(--ease),border-color .3s var(--ease),backdrop-filter .3s var(--ease),
             box-shadow .3s var(--ease);
}
.site-header.scrolled{
  background:rgba(7,12,20,.72);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid var(--line);
  box-shadow:0 14px 30px -26px rgba(0,0,0,.95);
}
.nav-wrap{
  display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:18px;
  height:72px;transition:height .3s var(--ease);position:relative;
}
.site-header.scrolled .nav-wrap{height:62px;}
.nav-side{display:flex;align-items:center;gap:28px;}
.nav-left{justify-self:start;}
.nav-right{justify-self:end;}
.nav-link{
  position:relative;font-size:15px;color:var(--text-2);
  padding:6px 2px;transition:color .2s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-6px;height:3px;border-radius:3px;
  background:linear-gradient(90deg,var(--brand),var(--accent));
  opacity:0;transition:opacity .22s var(--ease);
}
.nav-link:hover{color:var(--text-1);}
.nav-link:hover::after{opacity:.45;}
.nav-link.active{color:var(--text-1);font-weight:500;}
.nav-link.active::after{opacity:1;box-shadow:0 0 14px rgba(43,199,232,.6);}
.brand{display:flex;align-items:center;gap:10px;justify-self:center;}
.brand-mark{width:32px;height:32px;display:inline-flex;flex:0 0 32px;}
.brand-mark svg{width:100%;height:100%;}
.brand-text{font-size:19px;font-weight:700;letter-spacing:.02em;white-space:nowrap;
  background:linear-gradient(96deg,#EAF2FA 10%,#2BC7E8 55%,#F2A64B 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;}
.nav-toggle{
  display:none;justify-self:end;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);background:var(--glass);
  align-items:center;justify-content:center;transition:border-color .2s var(--ease),background .2s var(--ease);
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text-1);border-radius:2px;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text-1);border-radius:2px;
  transition:transform .25s var(--ease),top .25s var(--ease);
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-toggle:hover{border-color:rgba(43,199,232,.5);}
.site-header.menu-open .nav-toggle span{background:transparent;}
.site-header.menu-open .nav-toggle span::before{top:0;transform:rotate(45deg);}
.site-header.menu-open .nav-toggle span::after{top:0;transform:rotate(-45deg);}
.mobile-panel{
  position:absolute;left:0;right:0;top:100%;
  background:rgba(7,12,20,.94);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
  max-height:0;overflow:hidden;transition:max-height .35s var(--ease);
}
.site-header.menu-open .mobile-panel{max-height:340px;}
.mobile-panel ul{padding:10px 20px 22px;display:flex;flex-direction:column;}
.mobile-panel li{opacity:0;transform:translateY(-6px);transition:opacity .3s var(--ease),transform .3s var(--ease);}
.site-header.menu-open .mobile-panel li{opacity:1;transform:none;}
.site-header.menu-open .mobile-panel li:nth-child(1){transition-delay:.04s;}
.site-header.menu-open .mobile-panel li:nth-child(2){transition-delay:.08s;}
.site-header.menu-open .mobile-panel li:nth-child(3){transition-delay:.12s;}
.site-header.menu-open .mobile-panel li:nth-child(4){transition-delay:.16s;}
.mobile-panel a{
  display:block;text-align:center;font-size:18px;padding:13px 0;color:var(--text-2);
  border-bottom:1px solid var(--line);
}
.mobile-panel a.active{color:var(--brand);}

/* ---------- Buttons / chips ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--radius-pill);font-size:15px;font-weight:500;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),filter .2s var(--ease),
             background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.btn-primary{
  background:linear-gradient(120deg,#F2A64B,#F5C078);
  color:#1A1105;box-shadow:var(--shadow-btn),inset 0 0 0 1px rgba(242,166,75,.35);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px);
  box-shadow:0 16px 40px -10px rgba(242,166,75,.62),inset 0 0 0 1px rgba(242,166,75,.5);}
.btn-primary:active{transform:translateY(-1px);box-shadow:0 8px 22px -12px rgba(242,166,75,.55);}
.btn-ghost{
  background:var(--glass);border:1px solid var(--line);color:var(--text-1);
}
.btn-ghost:hover{border-color:rgba(43,199,232,.5);color:#fff;transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(-1px);}
.chip{
  display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:var(--radius-pill);
  font-size:12px;font-weight:500;letter-spacing:.08em;color:var(--brand);
  background:rgba(43,199,232,.10);border:1px solid rgba(43,199,232,.32);
}
.chip-mint{color:var(--mint);background:rgba(63,224,176,.10);border-color:rgba(63,224,176,.32);}
.chip-accent{color:var(--accent);background:rgba(242,166,75,.10);border-color:rgba(242,166,75,.32);}

/* ---------- Hero (compact) ---------- */
.hero-compact{
  position:relative;overflow:hidden;
  background:
    radial-gradient(600px 320px at 82% 12%,rgba(43,199,232,.16),transparent 70%),
    radial-gradient(520px 300px at 12% 90%,rgba(242,166,75,.12),transparent 72%),
    linear-gradient(180deg,rgba(7,12,20,.55),rgba(7,12,20,.92)),
    url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  border-bottom:1px solid var(--line);
}
.hero-compact::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:32px 32px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.75),transparent 92%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.75),transparent 92%);
}
.hero-inner{position:relative;z-index:2;min-height:360px;display:flex;flex-direction:column;justify-content:center;
  padding:56px 0 60px;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:20px;}
.breadcrumb a{color:var(--text-3);transition:color .2s var(--ease);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:rgba(255,255,255,.18);}
.breadcrumb .current{color:var(--text-2);}
.hero-title{margin-bottom:16px;max-width:860px;}
.hero-sub{font-size:17px;color:var(--text-2);max-width:660px;margin-bottom:26px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center;}
.hero-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}

/* ---------- Sections ---------- */
.section{padding:96px 0;position:relative;}
.section--tight{padding:76px 0;}
.section--soft{background:linear-gradient(180deg,rgba(12,20,32,.6),rgba(7,12,20,0));border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:760px;margin-bottom:48px;}
.section-head h2{margin-bottom:14px;}
.section-head p{font-size:16px;}
.section-eyebrow{
  display:inline-block;font-family:var(--font-mono);font-size:12px;letter-spacing:.18em;
  color:var(--brand);margin-bottom:14px;text-transform:uppercase;
}

/* ---------- Split blocks ---------- */
.split{display:grid;grid-template-columns:1.05fr 1fr;gap:56px;align-items:center;}
.split + .split{margin-top:84px;}
.split-media{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow-card);
  aspect-ratio:16/11;background:var(--bg-elev-2);
}
.split-media img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease);}
.split-media:hover img{transform:scale(1.03);}
.split-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(200deg,rgba(7,12,20,.05),rgba(7,12,20,.55));
}
.split.reverse .split-media{order:2;}
.split-body h3{font-size:clamp(21px,2.2vw,27px);margin-bottom:16px;}
.split-body p{margin-bottom:16px;}
.point-list{margin-top:22px;display:flex;flex-direction:column;gap:12px;}
.point-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--text-2);}
.point-list li::before{
  content:"";flex:0 0 8px;width:8px;height:8px;border-radius:50%;margin-top:9px;
  background:var(--brand);box-shadow:0 0 10px rgba(43,199,232,.85);
}
.point-list li strong{color:var(--text-1);font-weight:500;}

/* ---------- Stats grid ---------- */
.stat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;}
.stat-item{
  position:relative;padding:30px 28px;border-radius:var(--radius-lg);
  background:var(--glass-strong);border:1px solid var(--line);
  -webkit-backdrop-filter:blur(18px) saturate(140%);backdrop-filter:blur(18px) saturate(140%);
  box-shadow:var(--shadow-card);overflow:hidden;
  transition:transform .22s var(--ease),border-color .22s var(--ease);
}
.stat-item::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(43,199,232,.7),transparent);
  opacity:0;transition:opacity .22s var(--ease);
}
.stat-item:hover{transform:translateY(-4px);border-color:rgba(43,199,232,.3);}
.stat-item:hover::before{opacity:1;}
.stat-num{font-family:var(--font-mono);font-size:44px;font-weight:700;color:var(--brand);line-height:1;}
.stat-unit{font-size:14px;color:var(--text-3);margin-left:6px;}
.stat-label{display:block;margin-top:12px;font-size:14px;color:var(--text-2);}

/* ---------- Scene cards ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.scene-card{
  padding:30px 26px 28px;border-radius:var(--radius-lg);background:var(--glass-strong);
  border:1px solid var(--line);box-shadow:var(--shadow-card);
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
  position:relative;overflow:hidden;
}
.scene-card:hover{transform:translateY(-4px);border-color:rgba(43,199,232,.3);}
.scene-card h3{font-size:19px;margin:16px 0 10px;}
.scene-card p{font-size:15px;margin-bottom:0;}
.scene-icon{
  width:44px;height:44px;border-radius:13px;display:flex;align-items:center;justify-content:center;
  background:rgba(43,199,232,.10);border:1px solid rgba(43,199,232,.32);color:var(--brand);
}
.scene-card:nth-child(2) .scene-icon{background:rgba(242,166,75,.10);border-color:rgba(242,166,75,.32);color:var(--accent);}
.scene-card:nth-child(3) .scene-icon{background:rgba(63,224,176,.10);border-color:rgba(63,224,176,.32);color:var(--mint);}

/* ---------- Flow ---------- */
.flow{display:grid;grid-template-columns:repeat(5,1fr);gap:0;margin-top:12px;position:relative;}
.flow-step{position:relative;padding:26px 22px 8px 0;}
.flow-step::before{
  content:"";position:absolute;top:8px;left:0;width:100%;height:2px;
  background:linear-gradient(90deg,rgba(43,199,232,.55),rgba(43,199,232,.12));
}
.flow-step:last-child::before{background:linear-gradient(90deg,rgba(43,199,232,.55),transparent);}
.flow-dot{
  position:absolute;top:1px;left:0;width:16px;height:16px;border-radius:50%;
  background:var(--bg-base);border:2px solid var(--brand);box-shadow:0 0 14px rgba(43,199,232,.7);
}
.flow-index{
  display:block;font-family:var(--font-mono);font-size:12px;letter-spacing:.16em;color:var(--brand);margin-bottom:10px;
}
.flow-step h3{font-size:17px;margin-bottom:8px;}
.flow-step p{font-size:14px;color:var(--text-3);max-width:210px;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:820px;margin:0 auto;}
.faq-item{
  background:var(--glass-strong);border:1px solid var(--line);border-radius:var(--radius-lg);
  margin-bottom:14px;overflow:hidden;
  transition:border-color .22s var(--ease),background .22s var(--ease);
}
.faq-item:hover{border-color:rgba(255,255,255,.16);}
.faq-item.open{border-color:rgba(242,166,75,.36);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;text-align:left;font-size:16px;font-weight:500;color:var(--text-1);
  position:relative;transition:color .2s var(--ease);
}
.faq-q::before{
  content:"";position:absolute;left:0;top:16px;bottom:16px;width:3px;border-radius:3px;
  background:var(--accent);opacity:0;transition:opacity .22s var(--ease);
}
.faq-item.open .faq-q::before{opacity:1;}
.faq-icon{
  flex:0 0 22px;width:22px;height:22px;position:relative;transition:transform .3s var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--brand);border-radius:2px;
  transition:background .2s var(--ease);
}
.faq-icon::before{top:10px;left:2px;width:18px;height:2px;}
.faq-icon::after{top:2px;left:10px;width:2px;height:18px;}
.faq-item.open .faq-icon{transform:rotate(135deg);}
.faq-item.open .faq-icon::before,.faq-item.open .faq-icon::after{background:var(--accent);}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .32s var(--ease);}
.faq-item.open .faq-a{grid-template-rows:1fr;}
.faq-a-inner{overflow:hidden;}
.faq-a-inner p{
  padding:0 24px 22px 24px;font-size:15px;line-height:1.8;color:var(--text-2);max-width:none;
  border-top:1px solid var(--line);margin:0 24px 0 24px;padding-left:0;padding-right:0;padding-top:16px;
}

/* ---------- CTA ---------- */
.cta-card{
  position:relative;overflow:hidden;border-radius:22px;
  background:
    radial-gradient(520px 260px at 88% 10%,rgba(242,166,75,.18),transparent 72%),
    radial-gradient(520px 260px at 6% 92%,rgba(43,199,232,.16),transparent 74%),
    var(--glass-strong);
  border:1px solid var(--line);
  -webkit-backdrop-filter:blur(18px) saturate(140%);backdrop-filter:blur(18px) saturate(140%);
  box-shadow:var(--shadow-card);
  padding:56px 52px;
  display:grid;grid-template-columns:1.4fr 1fr;gap:40px;align-items:center;
}
.cta-card h2{margin-bottom:14px;}
.cta-card p{font-size:16px;}
.cta-actions{display:flex;flex-direction:column;gap:14px;align-items:flex-start;}
.cta-note{font-size:12px;color:var(--text-3);letter-spacing:.04em;}

/* ---------- Footer ---------- */
.site-footer{
  background:#05090F;border-top:1px solid var(--line);
  padding:72px 0 0;margin-top:0;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;}
.footer-brand p{font-size:14px;color:var(--text-3);margin-top:16px;max-width:320px;}
.footer-col h3{font-size:15px;margin-bottom:18px;color:var(--text-1);}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a,.footer-col span{font-size:14px;color:var(--text-3);transition:color .2s var(--ease),transform .2s var(--ease);display:inline-block;}
.footer-col a:hover{color:var(--brand);transform:translateX(2px);}
.socials{display:flex;gap:10px;margin-top:22px;}
.socials a{
  width:36px;height:36px;border-radius:11px;display:flex;align-items:center;justify-content:center;
  background:var(--glass);border:1px solid var(--line);color:var(--text-2);
  transition:color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.socials a:hover{color:var(--brand);border-color:rgba(43,199,232,.45);transform:translateY(-2px);}
.footer-bottom{
  margin-top:56px;padding:22px 0;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;align-items:center;
}
.footer-bottom p{font-size:13px;color:var(--text-3);max-width:none;}
.footer-meta{font-family:var(--font-mono);font-size:12px;letter-spacing:.04em;}

/* ---------- Responsive ---------- */
@media (max-width:1024px){
  .nav-side{display:none;}
  .nav-wrap{grid-template-columns:1fr auto 1fr;}
  .nav-toggle{display:flex;}
  .brand{grid-column:2;}
  .section{padding:72px 0;}
  .section--tight{padding:60px 0;}
  .split{grid-template-columns:1fr;gap:32px;}
  .split.reverse .split-media{order:0;}
  .split + .split{margin-top:56px;}
  .flow{grid-template-columns:1fr;gap:26px;}
  .flow-step{padding:22px 0 0 0;}
  .flow-step::before{
    top:0;left:7px;width:2px;height:100%;
    background:linear-gradient(180deg,rgba(43,199,232,.55),rgba(43,199,232,.08));
  }
  .flow-step:last-child::before{background:linear-gradient(180deg,rgba(43,199,232,.55),transparent);}
  .flow-dot{top:22px;left:0;}
  .flow-step{padding-left:30px;}
  .flow-step p{max-width:none;}
  .cta-card{grid-template-columns:1fr;gap:28px;padding:44px 34px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
}
@media (max-width:768px){
  body{font-size:15.5px;}
  .section{padding:56px 0;}
  .section--tight{padding:48px 0;}
  .hero-inner{min-height:280px;padding:40px 0 46px;}
  .scene-grid{grid-template-columns:1fr;}
  .stat-grid{grid-template-columns:1fr;gap:16px;}
  .section-head{margin-bottom:34px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .brand-text{font-size:17px;}
  .hero-actions .btn{width:100%;}
  .stat-item{padding:24px 20px;}
  .stat-num{font-size:36px;}
  .cta-card{padding:34px 22px;border-radius:18px;}
  .faq-q{padding:17px 18px;font-size:15px;}
  .faq-a-inner p{margin:0 18px;}
}

/* roulang page: category3 */
:root{
  --bg-base:#070C14;
  --bg-elev-1:#0C1420;
  --bg-elev-2:#111C2B;
  --brand:#2BC7E8;
  --brand-deep:#16689F;
  --accent:#F2A64B;
  --mint:#3FE0B0;
  --text-1:#EAF2FA;
  --text-2:#A7B6C8;
  --text-3:#6C7C90;
  --line:rgba(255,255,255,.08);
  --glass:rgba(255,255,255,.045);
  --glass-strong:linear-gradient(160deg,rgba(255,255,255,.075),rgba(255,255,255,.02));
  --radius-card:18px;
  --radius-sm:14px;
  --radius-pill:999px;
  --shadow-card:0 18px 40px -24px rgba(0,0,0,.85);
  --shadow-accent:0 12px 32px -10px rgba(242,166,75,.5);
  --font-cn:"HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-num:"Inter","SFMono-Regular",ui-monospace,Menlo,Consolas,monospace;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-base);
  color:var(--text-1);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
::selection{background:rgba(43,199,232,.28)}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section-alt{padding:72px 0}
.section-head{max-width:760px;margin-bottom:44px}
.section-head h2{font-size:clamp(24px,2.8vw,34px);line-height:1.25;font-weight:700;letter-spacing:.01em}
.section-head p{margin-top:16px;color:var(--text-2);font-size:16px;line-height:1.85}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:500;letter-spacing:.16em;text-transform:uppercase;
  color:var(--brand);margin-bottom:16px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:linear-gradient(90deg,var(--brand),transparent)}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;height:72px;
  transition:height .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),backdrop-filter .2s var(--ease);
  border-bottom:1px solid transparent;
}
.site-header.scrolled{
  height:62px;
  background:rgba(7,12,20,.72);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:grid;grid-template-columns:1fr auto 1fr;align-items:center;
  height:100%;gap:20px;
}
.nav-side{display:flex;align-items:center;gap:26px}
.nav-left{justify-content:flex-start}
.nav-right{justify-content:flex-end}
.nav-link{
  position:relative;font-size:15px;color:var(--text-2);
  padding:6px 2px;transition:color .2s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-4px;height:3px;border-radius:3px;
  background:linear-gradient(90deg,var(--brand),var(--accent));
  transform:scaleX(0);transform-origin:center;transition:transform .22s var(--ease);
  box-shadow:0 0 12px rgba(43,199,232,.7);
}
.nav-link:hover{color:var(--text-1)}
.nav-link.active{color:var(--text-1);font-weight:600}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1)}
.brand{display:inline-flex;align-items:center;gap:10px;white-space:nowrap}
.brand-mark{width:30px;height:30px;display:inline-block;flex:0 0 auto}
.brand-mark svg{width:100%;height:100%;display:block}
.brand-text{
  font-size:17px;font-weight:700;letter-spacing:.02em;
  background:linear-gradient(92deg,#EAF2FA 10%,var(--brand) 55%,var(--accent) 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:12px;
  background:var(--glass);cursor:pointer;justify-self:end;
  align-items:center;justify-content:center;flex-direction:column;gap:4px;
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text-1);transition:transform .22s var(--ease),opacity .22s var(--ease)}
.nav-toggle:hover{border-color:rgba(43,199,232,.5);background:rgba(43,199,232,.08)}
.nav-toggle.open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.mobile-panel{
  position:fixed;top:72px;left:0;right:0;z-index:79;
  display:flex;flex-direction:column;gap:2px;padding:14px 24px 26px;
  background:rgba(7,12,20,.95);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
  transform:translateY(-12px);opacity:0;visibility:hidden;
  transition:opacity .22s var(--ease),transform .22s var(--ease),visibility .22s;
}
.mobile-panel.open{transform:translateY(0);opacity:1;visibility:visible}
.mobile-panel a{
  font-size:18px;text-align:center;padding:14px 8px;border-radius:12px;color:var(--text-2);
  transition:color .2s var(--ease),background .2s var(--ease);
}
.mobile-panel a:hover,.mobile-panel a.active{color:var(--text-1);background:rgba(43,199,232,.08)}

/* ---------- 紧凑首屏 ---------- */
.page-hero{
  position:relative;overflow:hidden;
  padding:152px 0 64px;
  background:
    radial-gradient(760px 320px at 78% 8%, rgba(43,199,232,.16), transparent 62%),
    radial-gradient(560px 280px at 8% 92%, rgba(242,166,75,.10), transparent 60%),
    linear-gradient(180deg,#08111C 0%,var(--bg-base) 100%);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center 32%;
  opacity:.20;filter:saturate(115%);
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(180deg,rgba(7,12,20,.72) 0%,rgba(7,12,20,.88) 62%,var(--bg-base) 100%),
    repeating-linear-gradient(0deg,rgba(255,255,255,.028) 0 1px,transparent 1px 32px),
    repeating-linear-gradient(90deg,rgba(255,255,255,.028) 0 1px,transparent 1px 32px);
}
.page-hero .container{position:relative;z-index:2}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--text-3);margin-bottom:22px;
}
.breadcrumb a{color:var(--text-2);transition:color .2s var(--ease)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:var(--text-3);opacity:.7}
.breadcrumb .current{color:var(--text-2)}
.page-hero h1{
  font-size:clamp(30px,4.2vw,50px);line-height:1.16;font-weight:700;letter-spacing:.01em;
  max-width:820px;
}
.page-hero h1 em{
  font-style:normal;
  background:linear-gradient(94deg,var(--brand),var(--mint) 58%,var(--accent));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.page-hero .lead{
  margin-top:20px;max-width:680px;font-size:clamp(15px,1.6vw,17px);
  color:var(--text-2);line-height:1.9;
}
.hero-badges{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.micro-badge{
  display:flex;align-items:baseline;gap:10px;
  padding:12px 18px;border:1px solid var(--line);border-radius:var(--radius-pill);
  background:var(--glass);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
}
.micro-badge b{font-family:var(--font-num);font-size:26px;font-weight:600;color:var(--brand);letter-spacing:-.01em}
.micro-badge span{font-size:12px;color:var(--text-3);letter-spacing:.06em}

/* ---------- 锚点 Tab ---------- */
.anchor-bar{
  position:sticky;top:62px;z-index:40;
  padding:14px 0;
  background:rgba(7,12,20,.82);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.anchor-tabs{display:flex;gap:10px;overflow-x:auto;scrollbar-width:none;padding-bottom:2px}
.anchor-tabs::-webkit-scrollbar{display:none}
.anchor-tabs a{
  flex:0 0 auto;padding:9px 18px;border-radius:var(--radius-pill);
  font-size:14px;color:var(--text-2);border:1px solid var(--line);background:var(--glass);
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease),transform .2s var(--ease);
}
.anchor-tabs a:hover{color:var(--text-1);border-color:rgba(43,199,232,.45);background:rgba(43,199,232,.10);transform:translateY(-1px)}

/* ---------- 支持范围滚动卡 ---------- */
.scroll-cards{
  display:grid;grid-auto-flow:column;grid-auto-columns:minmax(268px,1fr);
  gap:20px;overflow-x:auto;padding:6px 4px 22px;
  scroll-snap-type:x proximity;scrollbar-width:thin;
}
.scroll-cards::-webkit-scrollbar{height:6px}
.scroll-cards::-webkit-scrollbar-thumb{background:rgba(43,199,232,.3);border-radius:6px}
.scroll-card{
  scroll-snap-align:start;
  display:flex;flex-direction:column;
  border:1px solid var(--line);border-radius:var(--radius-card);
  background:var(--glass-strong);box-shadow:var(--shadow-card);
  overflow:hidden;
  transition:transform .2s var(--ease),border-color .2s var(--ease);
}
.scroll-card:hover{transform:translateY(-4px);border-color:rgba(43,199,232,.32)}
.scroll-card figure{margin:0;aspect-ratio:16/10;overflow:hidden;position:relative}
.scroll-card img{width:100%;height:100%;object-fit:cover}
.scroll-card figure::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(7,12,20,.72))}
.scroll-card .body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.scroll-card h3{font-size:18px;font-weight:600;line-height:1.5}
.scroll-card p{font-size:14.5px;color:var(--text-2);line-height:1.8}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--radius-pill);
  font-size:12px;font-weight:500;letter-spacing:.08em;
  border:1px solid rgba(43,199,232,.36);background:rgba(43,199,232,.12);color:#9CE6F7;
}
.chip.mint{border-color:rgba(63,224,176,.34);background:rgba(63,224,176,.12);color:#9CF0D6}
.chip.amber{border-color:rgba(242,166,75,.36);background:rgba(242,166,75,.12);color:#F7CE97}

/* ---------- 自助排查 ---------- */
.selfcheck{
  display:grid;grid-template-columns:repeat(12,1fr);gap:24px;align-items:center;
}
.selfcheck-media{grid-column:1 / span 6;position:relative}
.selfcheck-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:20px;box-shadow:var(--shadow-card)}
.selfcheck-media .float-card{
  position:absolute;right:-8px;bottom:-18px;
  padding:16px 20px;border-radius:var(--radius-sm);
  border:1px solid var(--line);background:rgba(12,20,32,.86);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  box-shadow:var(--shadow-card);
}
.selfcheck-media .float-card b{display:block;font-family:var(--font-num);font-size:24px;color:var(--mint)}
.selfcheck-media .float-card span{font-size:12px;color:var(--text-3);letter-spacing:.06em}
.selfcheck-text{grid-column:8 / span 5}
.selfcheck-text h2{font-size:clamp(23px,2.6vw,32px);line-height:1.3;font-weight:700}
.selfcheck-text > p{margin-top:16px;color:var(--text-2);font-size:16px}
.check-list{margin-top:26px;display:flex;flex-direction:column;gap:18px}
.check-list li{display:flex;gap:14px;align-items:flex-start}
.check-list .dot{
  flex:0 0 auto;width:10px;height:10px;margin-top:9px;border-radius:50%;
  background:var(--brand);box-shadow:0 0 12px rgba(43,199,232,.85);
}
.check-list b{display:block;font-size:16px;font-weight:600;margin-bottom:4px}
.check-list span{font-size:14.5px;color:var(--text-2);line-height:1.8}

/* ---------- FAQ ---------- */
.faq-group{margin-bottom:58px}
.faq-group:last-child{margin-bottom:0}
.faq-group-title{
  display:flex;align-items:center;gap:14px;margin-bottom:24px;
}
.faq-group-title .num{
  font-family:var(--font-num);font-size:14px;letter-spacing:.1em;
  color:var(--brand);border:1px solid rgba(43,199,232,.34);
  background:rgba(43,199,232,.10);border-radius:var(--radius-pill);
  padding:4px 12px;
}
.faq-group-title h3{font-size:20px;font-weight:700}
.faq-list{max-width:860px;display:flex;flex-direction:column;gap:12px}
.faq-item{
  border:1px solid var(--line);border-radius:var(--radius-sm);
  background:var(--glass-strong);
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.faq-item:hover{border-color:rgba(43,199,232,.28)}
.faq-item[open]{border-color:rgba(242,166,75,.4);background:linear-gradient(160deg,rgba(242,166,75,.07),rgba(255,255,255,.02))}
.faq-item summary{
  cursor:pointer;list-style:none;position:relative;
  padding:18px 56px 18px 22px;
  font-size:16px;font-weight:600;line-height:1.65;color:var(--text-1);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{
  content:"";position:absolute;left:0;top:16px;bottom:16px;width:3px;border-radius:3px;
  background:linear-gradient(180deg,var(--accent),rgba(242,166,75,.15));
  opacity:0;transition:opacity .2s var(--ease);
}
.faq-item[open] summary::before{opacity:1}
.faq-item summary::after{
  content:"+";position:absolute;right:20px;top:50%;transform:translateY(-50%);
  font-size:22px;line-height:1;color:var(--brand);
  transition:transform .22s var(--ease),color .22s var(--ease);
}
.faq-item[open] summary::after{content:"×";color:var(--accent);transform:translateY(-50%) rotate(0deg)}
.faq-item .answer{padding:0 22px 20px 22px;font-size:15px;line-height:1.85;color:var(--text-2)}
.faq-item .answer p + p{margin-top:12px}
.faq-item .answer strong{color:var(--text-1);font-weight:600}

/* ---------- 联系卡 ---------- */
.contact-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.contact-card{
  padding:30px 26px;border:1px solid var(--line);border-radius:var(--radius-card);
  background:var(--glass-strong);box-shadow:var(--shadow-card);
  display:flex;flex-direction:column;gap:12px;
  transition:transform .2s var(--ease),border-color .2s var(--ease);
}
.contact-card:hover{transform:translateY(-4px);border-color:rgba(63,224,176,.34)}
.contact-icon{
  width:46px;height:46px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  border:1px solid rgba(43,199,232,.3);background:rgba(43,199,232,.10);color:var(--brand);
}
.contact-card h3{font-size:18px;font-weight:600}
.contact-card p{font-size:14.5px;color:var(--text-2);line-height:1.8}
.contact-card .meta{font-family:var(--font-num);font-size:14px;color:var(--mint);letter-spacing:.02em;word-break:break-all}
.contact-card .note{font-size:12.5px;color:var(--text-3);letter-spacing:.04em}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;
  border:1px solid var(--line);border-radius:22px;
  background:
    radial-gradient(620px 260px at 12% 0%, rgba(43,199,232,.18), transparent 62%),
    radial-gradient(520px 260px at 88% 100%, rgba(242,166,75,.16), transparent 60%),
    linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  padding:46px 44px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  box-shadow:var(--shadow-card);
}
.cta-band h2{font-size:clamp(22px,2.5vw,30px);font-weight:700;line-height:1.35;max-width:560px}
.cta-band p{margin-top:12px;color:var(--text-2);font-size:15px;max-width:520px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 28px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),filter .2s var(--ease);
}
.btn-primary{
  background:linear-gradient(120deg,var(--accent),#E08C33);
  color:#1A1105;box-shadow:var(--shadow-accent),inset 0 0 0 1px rgba(242,166,75,.35);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 18px 40px -12px rgba(242,166,75,.62)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 8px 20px -12px rgba(242,166,75,.6)}
.btn-ghost{
  border-color:rgba(255,255,255,.16);background:rgba(255,255,255,.04);color:var(--text-1);
}
.btn-ghost:hover{border-color:rgba(43,199,232,.55);background:rgba(43,199,232,.10);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(1px)}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:96px;border-top:1px solid var(--line);
  background:linear-gradient(180deg,#060A11,#04070C);
  padding:64px 0 26px;
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;
}
.footer-brand p{margin-top:16px;font-size:14.5px;color:var(--text-2);line-height:1.85;max-width:320px}
.socials{display:flex;gap:10px;margin-top:20px}
.socials a{
  width:36px;height:36px;border-radius:11px;display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line);background:var(--glass);color:var(--text-2);
  transition:color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.socials a:hover{color:var(--brand);border-color:rgba(43,199,232,.45);transform:translateY(-2px)}
.footer-col h3{font-size:14px;font-weight:600;letter-spacing:.08em;color:var(--text-1);margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a,.footer-col span{font-size:14.5px;color:var(--text-2);transition:color .2s var(--ease),transform .2s var(--ease);display:inline-block}
.footer-col a:hover{color:var(--brand);transform:translateX(2px)}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}
.footer-bottom a{color:var(--text-3)}
.footer-bottom a:hover{color:var(--brand)}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .nav-side{display:none}
  .nav-toggle{display:flex}
  .header-inner{grid-template-columns:1fr auto 1fr}
  .brand{grid-column:2}
  .section{padding:72px 0}
  .section-alt{padding:60px 0}
  .page-hero{padding:124px 0 52px}
  .anchor-bar{top:62px}
  .selfcheck-media{grid-column:1 / span 12}
  .selfcheck-text{grid-column:1 / span 12}
  .selfcheck-media .float-card{right:16px;bottom:16px}
  .contact-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .cta-band{padding:36px 30px}
}
@media (max-width:768px){
  body{font-size:15.5px}
  .container{padding:0 18px}
  .section{padding:56px 0}
  .section-alt{padding:48px 0}
  .page-hero{padding:112px 0 44px}
  .hero-badges{gap:10px}
  .micro-badge{padding:10px 14px}
  .micro-badge b{font-size:22px}
  .scroll-cards{grid-auto-columns:minmax(240px,84%)}
  .contact-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .cta-band{padding:30px 22px;flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .faq-item summary{padding:16px 48px 16px 18px;font-size:15px}
  .footer-bottom{flex-direction:column}
  .footer-col a:hover{transform:none}
}
@media (max-width:520px){
  .page-hero h1{font-size:clamp(26px,7.4vw,34px)}
  .anchor-tabs a{padding:8px 14px;font-size:13px}
  .brand-text{font-size:15.5px}
}