/* roulang page: index */
:root{
  --bg-base:#0B0D0C;
  --bg-deep:#070908;
  --surface-1:#141817;
  --surface-2:#1B211F;
  --line-soft:rgba(255,255,255,.07);
  --line-strong:rgba(255,255,255,.14);
  --brand:#C6F542;
  --brand-deep:#8FB821;
  --accent:#FF5A2B;
  --neon-cyan:#35E0D0;
  --text-1:#EDF2EC;
  --text-2:#9AA7A0;
  --text-3:#6B7873;
  --success:#4ADE80;
  --warn:#FBBF24;
  --error:#F87171;
  --r-card:18px;
  --r-inner:12px;
  --r-btn:10px;
  --r-badge:6px;
  --r-img:14px;
  --shadow-card:0 0 0 1px var(--line-soft),0 20px 44px -26px rgba(0,0,0,.95);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"Barlow Condensed","Inter","Helvetica Neue",Arial,sans-serif;
  --container:1200px;
  --gap:24px;
  --sec-y:96px;
  --nav-h:68px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  padding-top:var(--nav-h);
  background:var(--bg-base);
  color:var(--text-1);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.9;
  letter-spacing:.01em;
  background-image:
    linear-gradient(rgba(255,255,255,.018) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.018) 1px,transparent 1px);
  background-size:72px 72px,72px 72px;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--text-1);text-decoration:none;transition:color .18s ease-out,border-color .18s ease-out}
a:hover{color:var(--brand)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button,input{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}
.hairline{height:1px;border:0;margin:0;background:linear-gradient(90deg,var(--brand),rgba(198,245,66,0) 72%)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:600;letter-spacing:.16em;
  color:var(--text-2);text-transform:uppercase;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--brand);display:block}
.section{padding:var(--sec-y) 0;position:relative}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:40px}
.section-head h2{font-size:32px;line-height:1.3;font-weight:700;letter-spacing:-.01em;margin-top:10px}
.section-head p{color:var(--text-2);font-size:15px;max-width:640px;margin-top:10px}
.section-head .head-side{flex:0 0 auto}
.title-rule{width:56px;height:3px;background:var(--brand);border-radius:2px;margin-top:18px}
.badge{display:inline-block;padding:2px 9px;border-radius:var(--r-badge);font-size:12px;font-weight:600;letter-spacing:.04em;line-height:1.7}
.badge-accent{background:var(--accent);color:#160A05}
.badge-brand{background:rgba(198,245,66,.14);color:var(--brand);box-shadow:inset 0 0 0 1px rgba(198,245,66,.35)}
.badge-ghost{background:var(--surface-2);color:var(--text-2);box-shadow:inset 0 0 0 1px var(--line-soft)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;
  transition:background-color .18s ease-out,color .18s ease-out,border-color .18s ease-out,transform .16s ease-out,box-shadow .2s ease-out;
}
.btn-primary{background:linear-gradient(135deg,var(--brand-deep),var(--brand));color:#0B0D0C}
.btn-primary:hover{background:linear-gradient(135deg,#9CC526,#D3FF57);color:#0B0D0C;box-shadow:0 0 22px rgba(198,245,66,.28);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(1px);background:var(--brand-deep);color:#0B0D0C}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:var(--text-1)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{min-height:40px;padding:0 16px;font-size:14px}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}
.link-more{color:var(--brand);font-size:14px;font-weight:600;border-bottom:1px solid rgba(198,245,66,.35);padding-bottom:2px}
.link-more:hover{color:var(--brand);border-bottom-color:var(--brand)}

/* ============ 顶部导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  background:rgba(11,13,12,.86);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line-soft);
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
  background:linear-gradient(90deg,var(--brand),rgba(198,245,66,.15) 42%,rgba(198,245,66,0) 78%);
}
.nav-wrap{display:flex;align-items:center;gap:24px;height:var(--nav-h)}
.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto}
.brand-mark{
  width:36px;height:36px;border-radius:10px;flex:0 0 auto;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,rgba(198,245,66,.22),rgba(198,245,66,.04));
  box-shadow:inset 0 0 0 1px rgba(198,245,66,.45);
}
.brand-mark svg{width:19px;height:19px;display:block}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-family:var(--font-num);font-size:19px;font-weight:700;letter-spacing:.06em;color:var(--text-1);text-transform:lowercase}
.brand-text em{font-style:normal;font-size:11px;letter-spacing:.2em;color:var(--text-2)}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:14px}
.nav-link{
  position:relative;display:block;padding:9px 14px;border-radius:8px;
  font-size:15px;color:var(--text-2);font-weight:500;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .2s ease-out;
}
.nav-link:hover{color:var(--text-1);transform:translateY(-1px)}
.nav-link:hover::after{transform:scaleX(1);background:var(--neon-cyan)}
.nav-link.is-active{color:var(--brand)}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;
  box-shadow:inset 0 0 0 1px var(--line-strong);
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text-1);border-radius:2px;transition:transform .2s ease-out,opacity .2s ease-out}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.nav-scrim{
  position:fixed;inset:0;background:rgba(7,9,8,.6);z-index:70;
  opacity:0;visibility:hidden;transition:opacity .2s ease-out,visibility .2s ease-out;
}
.nav-scrim.is-open{opacity:1;visibility:visible}

/* ============ 首屏 ============ */
.hero{padding:76px 0 88px;position:relative;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center}
.hero h1{
  font-size:48px;line-height:1.22;font-weight:800;letter-spacing:-.015em;
  margin:18px 0 0;
}
.hero h1 .hl{color:var(--brand)}
.hero-sub{color:var(--text-2);font-size:17px;line-height:1.8;max-width:560px;margin-top:20px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px}
.tag{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 12px;border-radius:999px;font-size:13px;color:var(--text-2);
  background:var(--surface-1);box-shadow:inset 0 0 0 1px var(--line-soft);
}
.tag::before{content:"";width:6px;height:6px;border-radius:2px;background:var(--brand);display:block}
.hero-visual{position:relative;min-height:400px;border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-card)}
.hero-visual-bg{position:absolute;inset:0;background-size:cover;background-position:center}
.hero-visual-mask{position:absolute;inset:0;background:linear-gradient(150deg,rgba(11,13,12,.42),rgba(7,9,8,.92))}
.hero-visual .scan{
  position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,rgba(198,245,66,0),var(--brand),rgba(198,245,66,0));
  opacity:.7;
}
.hero-float-card{
  position:absolute;left:22px;bottom:22px;right:22px;
  display:flex;align-items:center;gap:14px;
  padding:14px;border-radius:var(--r-inner);
  background:rgba(20,24,23,.92);
  box-shadow:0 0 0 1px var(--line-strong),0 18px 40px -22px rgba(0,0,0,.95);
  transform:rotate(-2deg);
}
.hero-float-card img{width:88px;height:58px;object-fit:cover;border-radius:10px;box-shadow:inset 0 0 0 1px var(--line-soft)}
.float-label{display:block;font-size:11px;letter-spacing:.14em;color:var(--text-3)}
.hero-float-card strong{display:block;font-size:15px;margin-top:2px}
.hero-stat{
  position:absolute;top:20px;right:20px;
  font-family:var(--font-num);font-size:34px;line-height:1;color:var(--brand);
  padding:10px 14px;border-radius:var(--r-inner);
  background:rgba(11,13,12,.72);box-shadow:inset 0 0 0 1px rgba(198,245,66,.35);
}
.hero-stat small{display:block;font-family:var(--font-cn);font-size:11px;letter-spacing:.1em;color:var(--text-2);margin-top:4px}

/* ============ 主张横条 ============ */
.claims{border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);background:var(--surface-1)}
.claims-inner{display:flex;flex-wrap:wrap;align-items:stretch;gap:0}
.claim{
  flex:1 1 200px;display:flex;align-items:baseline;gap:10px;
  padding:22px 26px;font-size:15px;color:var(--text-2);
}
.claim + .claim{border-left:1px solid var(--line-soft)}
.claim b{font-family:var(--font-num);font-size:16px;color:var(--brand);letter-spacing:.06em}
.claim strong{color:var(--text-1);font-weight:600}

/* ============ 故事区 ============ */
.story-row{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;margin-bottom:72px}
.story-row:last-child{margin-bottom:0}
.story-row.reverse .story-media{order:2}
.story-media{position:relative;border-radius:var(--r-img);overflow:hidden;box-shadow:var(--shadow-card)}
.story-media img{width:100%;aspect-ratio:16/10;object-fit:cover;filter:saturate(.95)}
.story-media::after{content:"";position:absolute;inset:0;background:rgba(7,9,8,.08);box-shadow:inset 0 0 0 1px var(--line-soft);border-radius:var(--r-img)}
.story-cap{font-size:13px;color:var(--text-3);margin-top:12px}
.story-copy h3{font-size:24px;line-height:1.4;font-weight:700;margin-bottom:16px}
.story-copy p{color:var(--text-2);font-size:16.5px;line-height:1.9;max-width:46em;margin-bottom:14px}
.story-copy .num{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:9px;margin-bottom:14px;
  font-family:var(--font-num);font-size:17px;color:var(--brand);
  background:rgba(198,245,66,.1);box-shadow:inset 0 0 0 1px rgba(198,245,66,.35);
}
.story-list{margin-top:18px}
.story-list li{position:relative;padding-left:20px;color:var(--text-2);font-size:15.5px;margin-bottom:8px}
.story-list li::before{content:"";position:absolute;left:0;top:12px;width:8px;height:8px;border-radius:2px;background:var(--brand)}

/* ============ 精选卡 ============ */
.feature-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:var(--gap)}
.feature-card{
  position:relative;display:flex;flex-direction:column;
  background:var(--surface-1);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--shadow-card);
  transition:transform .2s ease-out,box-shadow .2s ease-out;
}
.feature-card:hover{transform:translateY(-3px);box-shadow:0 0 0 1px var(--line-strong),0 0 22px rgba(198,245,66,.22),0 24px 48px -26px rgba(0,0,0,.95)}
.feature-card:nth-child(1){grid-column:span 5}
.feature-card:nth-child(2){grid-column:span 4}
.feature-card:nth-child(3){grid-column:span 3}
.feature-thumb{position:relative;overflow:hidden}
.feature-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .3s ease-out}
.feature-card:hover .feature-thumb img{transform:scale(1.04)}
.feature-thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,9,8,.04),rgba(7,9,8,.62))}
.feature-thumb .badge{position:absolute;top:14px;left:14px;z-index:2}
.feature-body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1}
.feature-body h3{font-size:21px;line-height:1.45;font-weight:700}
.feature-body p{color:var(--text-2);font-size:15px;line-height:1.75}
.feature-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:14px;border-top:1px solid var(--line-soft)}
.feature-foot .meta{font-size:13px;color:var(--text-3);font-family:var(--font-num);letter-spacing:.04em}

/* ============ 最新信息列表 ============ */
.news-list{display:flex;flex-direction:column;border-top:1px solid var(--line-soft)}
.news-item{
  display:grid;grid-template-columns:120px 1fr 40px;gap:20px;align-items:center;
  padding:20px 14px;border-bottom:1px solid var(--line-soft);
  transition:background-color .18s ease-out;
}
.news-item:hover{background:var(--surface-1)}
.news-thumb{display:block;border-radius:var(--r-inner);overflow:hidden;box-shadow:inset 0 0 0 1px var(--line-soft)}
.news-thumb img{width:120px;height:80px;object-fit:cover}
.news-body{min-width:0}
.news-meta{display:flex;align-items:center;gap:12px;margin-bottom:6px}
.news-time{font-size:13px;color:var(--text-3);font-family:var(--font-num);letter-spacing:.06em}
.news-title{font-size:19px;line-height:1.5;font-weight:700}
.news-title a:hover{color:var(--brand)}
.news-summary{color:var(--text-2);font-size:15px;line-height:1.75;margin-top:6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-more{
  justify-self:end;font-family:var(--font-num);font-size:20px;color:var(--text-3);
  width:36px;height:36px;border-radius:9px;display:flex;align-items:center;justify-content:center;
  box-shadow:inset 0 0 0 1px var(--line-soft);
  transition:transform .18s ease-out,color .18s ease-out,box-shadow .18s ease-out;
}
.news-item:hover .news-more{color:var(--brand);transform:translateX(4px);box-shadow:inset 0 0 0 1px rgba(198,245,66,.4)}
.empty-state{
  display:flex;flex-direction:column;align-items:center;gap:14px;
  padding:56px 24px;border-radius:var(--r-card);
  background:var(--surface-1);box-shadow:inset 0 0 0 1px var(--line-soft);
  text-align:center;color:var(--text-2);
}
.empty-state .empty-icon{
  width:52px;height:52px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  background:var(--surface-2);box-shadow:inset 0 0 0 1px var(--line-soft);color:var(--text-3);
  font-family:var(--font-num);font-size:22px;
}
.skeleton{background:var(--surface-2);border-radius:var(--r-inner);animation:pulse 1.6s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:.55}50%{opacity:.95}}

/* ============ 信任背书 ============ */
.trust{background:var(--bg-deep);border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft)}
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line-soft)}
.trust-cell{background:var(--bg-deep);padding:30px 26px}
.trust-cell .no{
  font-family:var(--font-num);font-size:30px;line-height:1;color:var(--brand);letter-spacing:.04em;
}
.trust-cell h3{font-size:17px;font-weight:700;margin:12px 0 8px}
.trust-cell p{color:var(--text-2);font-size:14.5px;line-height:1.75}
.trust-bar{display:flex;flex-wrap:wrap;gap:36px;padding:34px 0 0}
.trust-bar .metric{min-width:150px}
.trust-bar .metric b{display:block;font-family:var(--font-num);font-size:38px;line-height:1;color:var(--brand);letter-spacing:.02em}
.trust-bar .metric span{display:block;font-size:13px;color:var(--text-3);margin-top:6px;letter-spacing:.06em}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px}
.faq-item{
  border-radius:var(--r-inner);background:var(--surface-1);
  box-shadow:inset 0 0 0 1px var(--line-soft);
  overflow:hidden;transition:box-shadow .18s ease-out;
}
.faq-item:hover{box-shadow:inset 0 0 0 1px var(--line-strong)}
.faq-item[open]{box-shadow:inset 0 0 0 1px rgba(198,245,66,.35)}
.faq-item summary{
  position:relative;list-style:none;cursor:pointer;
  padding:20px 56px 20px 26px;font-size:17px;font-weight:600;line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:0 3px 3px 0;
  background:var(--brand);transform:scaleY(0);transform-origin:top;transition:transform .2s ease-out;
}
.faq-item[open] summary::before{transform:scaleY(1)}
.faq-item summary::after{
  content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);
  font-family:var(--font-num);font-size:22px;color:var(--brand);
}
.faq-item[open] summary::after{content:"−"}
.faq-answer{padding:0 26px 22px;color:var(--text-2);font-size:15px;line-height:1.85}
.faq-answer p + p{margin-top:10px}

/* ============ CTA ============ */
.cta-block{
  position:relative;border-radius:var(--r-card);overflow:hidden;
  background:var(--surface-1);
  box-shadow:inset 0 0 0 1px rgba(198,245,66,.28),0 20px 44px -26px rgba(0,0,0,.95);
  padding:48px;
}
.cta-block::after{
  content:"";position:absolute;top:0;right:0;width:150px;height:150px;
  background:linear-gradient(225deg,rgba(198,245,66,.16),rgba(198,245,66,0) 68%);
  clip-path:polygon(100% 0,0 0,100% 100%);
}
.cta-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.1fr 1fr;gap:40px;align-items:center}
.cta-grid h2{font-size:30px;line-height:1.35;font-weight:700}
.cta-grid p{color:var(--text-2);font-size:15.5px;margin-top:14px;max-width:520px}
.cta-form{display:flex;gap:12px;flex-wrap:wrap}
.cta-form input{
  flex:1 1 240px;min-height:46px;padding:0 16px;border-radius:var(--r-btn);
  background:var(--surface-2);border:1px solid var(--line-soft);color:var(--text-1);
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.cta-form input::placeholder{color:var(--text-3)}
.cta-form input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(198,245,66,.14)}
.cta-form input.is-error{border-color:var(--error);box-shadow:0 0 0 3px rgba(248,113,113,.14);animation:shake .3s ease-out}
@keyframes shake{0%,100%{transform:translateY(0)}50%{transform:translateY(2px)}}
.form-hint{width:100%;font-size:13px;color:var(--text-3);margin-top:10px}
.form-hint.is-error{color:var(--error)}
.form-hint.is-ok{color:var(--success)}

/* ============ 页脚 ============ */
.site-footer{background:var(--bg-deep);position:relative;margin-top:var(--sec-y)}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,var(--brand),rgba(198,245,66,.1) 46%,rgba(198,245,66,0));
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding:64px 0 40px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{color:var(--text-2);font-size:14.5px;line-height:1.8;max-width:340px}
.footer-col h3{font-size:13px;letter-spacing:.14em;color:var(--text-3);font-weight:600;margin-bottom:16px}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14px;color:var(--text-2);line-height:2}
.footer-col a:hover{color:var(--brand)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;
  padding:22px 0 34px;border-top:1px solid var(--line-soft);
  font-size:13px;color:var(--text-3);
}
.footer-bottom .legal{max-width:640px;line-height:1.8}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  :root{--sec-y:80px}
  .hero h1{font-size:42px}
  .feature-card:nth-child(1){grid-column:span 6}
  .feature-card:nth-child(2){grid-column:span 6}
  .feature-card:nth-child(3){grid-column:span 12}
  .trust-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:1023px){
  :root{--sec-y:72px;--nav-h:60px}
  .container{padding:0 24px}
  .nav-toggle{display:flex}
  .main-nav{
    position:fixed;top:0;right:0;bottom:0;width:288px;z-index:75;
    flex-direction:column;align-items:stretch;gap:6px;
    margin:0;padding:88px 18px 28px;
    background:#101413;border-left:1px solid rgba(198,245,66,.35);
    transform:translateX(100%);transition:transform .22s ease-out;
    overflow-y:auto;
  }
  .main-nav.is-open{transform:translateX(0)}
  .nav-link{
    padding:14px 14px 14px 18px;font-size:16px;color:var(--text-1);
    border-radius:10px;background:var(--surface-1);
  }
  .nav-link::after{display:none}
  .nav-link::before{content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;border-radius:2px;background:var(--brand);opacity:0}
  .nav-link:hover::before,.nav-link.is-active::before{opacity:1}
  .nav-actions .btn-primary{display:none}
  .hero{padding:56px 0 64px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero h1{font-size:36px}
  .hero-visual{min-height:320px}
  .story-row{grid-template-columns:1fr;gap:28px;margin-bottom:56px}
  .story-row.reverse .story-media{order:0}
  .cta-grid{grid-template-columns:1fr;gap:28px}
  .cta-block{padding:34px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:52px 0 32px}
}
@media (max-width:767px){
  .section-head h2{font-size:26px}
  .feature-card:nth-child(1),
  .feature-card:nth-child(2),
  .feature-card:nth-child(3){grid-column:span 12}
  .news-item{grid-template-columns:1fr;gap:14px;padding:20px 0}
  .news-thumb img{width:100%;height:auto;aspect-ratio:16/9}
  .news-more{display:none}
  .trust-grid{grid-template-columns:1fr}
  .cta-block{padding:26px}
  .cta-grid h2{font-size:24px}
  .cta-form input,.cta-form .btn{flex:1 1 100%;width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .claim{padding:18px 0;flex:1 1 100%}
  .claim + .claim{border-left:none;border-top:1px solid var(--line-soft)}
}
@media (max-width:560px){
  :root{--sec-y:48px}
  .container{padding:0 18px}
  body{font-size:16px}
  .hero h1{font-size:31px}
  .hero-sub{font-size:16px}
  .hero-actions .btn{flex:1 1 100%}
  .hero-visual{min-height:260px}
  .hero-float-card{left:14px;right:14px;bottom:14px;padding:10px}
  .hero-float-card img{width:70px;height:48px}
  .hero-stat{font-size:26px;top:12px;right:12px}
  .story-copy h3{font-size:20px}
  .feature-body h3{font-size:19px}
  .news-title{font-size:17px}
  .faq-item summary{padding:16px 46px 16px 20px;font-size:16px}
  .faq-answer{padding:0 20px 18px}
}

/* roulang page: article */
:root{
  --bg-base:#0B0D0C;
  --bg-deep:#070908;
  --surface-1:#141817;
  --surface-2:#1B211F;
  --line-soft:rgba(255,255,255,.07);
  --line-strong:rgba(255,255,255,.14);
  --brand:#C6F542;
  --brand-deep:#8FB821;
  --accent:#FF5A2B;
  --neon-cyan:#35E0D0;
  --text-1:#EDF2EC;
  --text-2:#9AA7A0;
  --text-3:#6B7873;
  --success:#4ADE80;
  --warn:#FBBF24;
  --error:#F87171;
  --info:#35E0D0;
  --radius-card:18px;
  --radius-inner:12px;
  --radius-btn:10px;
  --radius-badge:6px;
  --radius-img:14px;
  --shadow-card:0 0 0 1px var(--line-soft), 0 20px 44px -26px rgba(0,0,0,.95);
  --shadow-hover:0 0 0 1px rgba(198,245,66,.45), 0 0 22px rgba(198,245,66,.22), 0 24px 50px -28px rgba(0,0,0,.95);
  --container:1200px;
  --ease:cubic-bezier(.2,.7,.3,1);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"Inter","Barlow Condensed",system-ui,sans-serif;
}
*,*::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:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.nav-open{overflow:hidden}
img{max-width:100%;display:block;border:0}
a{color:var(--text-1);text-decoration:none;transition:color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease)}
a:hover{color:var(--brand)}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button,input{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
::selection{background:rgba(198,245,66,.28);color:#fff}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(11,13,12,.86);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line-soft);
}
.site-header::after{
  content:"";
  display:block;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(198,245,66,.85),transparent);
  opacity:.55;
}
.nav-wrap{display:flex;align-items:center;gap:20px;height:68px}
.brand{display:flex;align-items:center;gap:10px;flex:none}
.brand-mark{
  width:36px;height:36px;display:grid;place-items:center;
  border:1px solid var(--line-strong);border-radius:var(--radius-btn);
  background:var(--surface-1);
  box-shadow:inset 0 0 14px rgba(198,245,66,.12);
}
.brand-mark svg{width:20px;height:20px}
.brand-text{display:flex;flex-direction:column;line-height:1.12}
.brand-text strong{font-size:17px;font-weight:800;letter-spacing:.01em;font-family:var(--font-num)}
.brand-text em{font-style:normal;font-size:11px;letter-spacing:.08em;color:var(--text-2)}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:18px}
.nav-link{
  position:relative;
  padding:9px 13px;
  font-size:15px;
  color:var(--text-2);
  border-radius:8px;
  transition:color .18s var(--ease),transform .18s var(--ease);
}
.nav-link::after{
  content:"";
  position:absolute;
  left:13px;right:13px;bottom:3px;
  height:2px;
  background:var(--brand);
  box-shadow:0 0 10px rgba(198,245,66,.75);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .2s var(--ease);
}
.nav-link:hover{color:var(--text-1);transform:translateY(-1px)}
.nav-link:hover::after{transform:scaleX(1);opacity:.7}
.nav-link.is-active{color:var(--brand);text-shadow:0 0 14px rgba(198,245,66,.35)}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--line-strong);
  border-radius:var(--radius-btn);
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
  transition:border-color .18s var(--ease)
}
.nav-toggle span{width:18px;height:2px;background:var(--text-1);border-radius:2px;transition:transform .2s var(--ease),opacity .2s var(--ease)}
.nav-toggle:hover{border-color:var(--brand)}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);background:var(--brand)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);background:var(--brand)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;
  border-radius:var(--radius-btn);
  border:1px solid transparent;
  font-size:15px;font-weight:600;
  cursor:pointer;white-space:nowrap;
  transition:color .18s var(--ease),background .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease),filter .18s var(--ease);
}
.btn-primary{
  background:linear-gradient(135deg,var(--brand-deep),var(--brand));
  color:#0B0D0C;
  box-shadow:0 0 0 1px rgba(198,245,66,.32);
}
.btn-primary:hover{color:#0B0D0C;filter:brightness(1.06);box-shadow:0 0 22px rgba(198,245,66,.35)}
.btn-primary:active{transform:translateY(1px);background:var(--brand-deep);filter:none}
.btn-secondary{background:transparent;border-color:var(--line-strong);color:var(--text-1)}
.btn-secondary:hover{border-color:var(--brand);color:var(--brand)}
.btn-secondary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;color:var(--text-2);border-radius:0;border-bottom:1px solid var(--line-soft);padding:0 2px;min-height:38px}
.btn-ghost:hover{color:var(--neon-cyan);border-color:var(--neon-cyan)}
.btn-sm{min-height:38px;padding:0 16px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;box-shadow:none;filter:none}
.btn.is-loading{cursor:progress;opacity:.75}
.loading-dots{display:inline-flex;gap:4px;align-items:center}
.loading-dots i{width:6px;height:6px;border-radius:50%;background:currentColor;animation:dotPulse 1s infinite ease-in-out}
.loading-dots i:nth-child(2){animation-delay:.15s}
.loading-dots i:nth-child(3){animation-delay:.3s}
@keyframes dotPulse{0%,80%,100%{opacity:.25;transform:translateY(0)}40%{opacity:1;transform:translateY(-3px)}}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:var(--radius-badge);
  font-size:12px;font-weight:600;letter-spacing:.04em;
}
.badge-accent{background:var(--accent);color:#0B0D0C}
.badge-line{border:1px solid var(--line-strong);color:var(--text-2)}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 12px;
  border-radius:var(--radius-badge);
  background:var(--surface-1);
  border:1px solid var(--line-soft);
  font-size:13px;color:var(--text-2);
}
.tag:hover{border-color:var(--brand);color:var(--brand)}

/* ---------- 页面头部 ---------- */
.page-head{position:relative;overflow:hidden;padding:40px 0 44px;border-bottom:1px solid var(--line-soft)}
.page-head-bg{
  position:absolute;inset:0;
  background:url(/assets/images/backpic/back-1.webp) center/cover no-repeat;
  opacity:.18;
  filter:saturate(.75);
}
.page-head-veil{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,13,12,.55) 0%,rgba(11,13,12,.9) 62%,var(--bg-base) 100%);
}
.page-head .container{position:relative;z-index:2}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--text-2)}
.breadcrumb li{display:flex;align-items:center;gap:8px}
.breadcrumb li+li::before{content:"/";color:var(--text-3)}
.breadcrumb a{color:var(--text-2)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb [aria-current="page"]{color:var(--text-1);max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.page-head .badge-accent{margin-top:20px}
.page-head h1{
  font-size:clamp(30px,4vw,44px);
  line-height:1.24;
  font-weight:800;
  margin:18px 0 16px;
  max-width:900px;
}
.lead{font-size:16px;line-height:1.85;color:var(--text-2);max-width:780px}
.meta-row{display:flex;flex-wrap:wrap;gap:8px 22px;margin-top:20px;font-size:13px;color:var(--text-3);font-family:var(--font-num)}
.meta-row li{display:flex;align-items:center;gap:6px}
.meta-row li+li::before{content:"·";color:var(--line-strong);margin-right:14px}

/* ---------- 板块 ---------- */
.section{padding:72px 0}
.section-tight{padding:56px 0}
.section-head{max-width:720px;margin-bottom:32px}
.section-head h2{font-size:30px;font-weight:700}
.section-head p{margin-top:12px;color:var(--text-2);font-size:15px;line-height:1.85}
.neon-line{width:56px;height:2px;background:var(--brand);box-shadow:0 0 12px rgba(198,245,66,.8);margin-top:14px}

/* ---------- 文章布局 ---------- */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 268px;gap:48px;align-items:start}
.article-main{max-width:800px}
.article-hero{
  margin:0 0 32px;
  border-radius:var(--radius-img);
  overflow:hidden;
  border:1px solid var(--line-soft);
  background:var(--surface-2);
  box-shadow:var(--shadow-card);
}
.article-hero img{width:100%;aspect-ratio:16/9;object-fit:cover;filter:brightness(.9)}
.article-hero figcaption{padding:10px 16px;font-size:13px;color:var(--text-3);background:var(--surface-1);border-top:1px solid var(--line-soft)}
.article-body{font-size:17px;line-height:1.9;color:var(--text-1);word-break:break-word}
.article-body>*+*{margin-top:1.2em}
.article-body p{color:var(--text-1)}
.article-body h2{
  position:relative;
  font-size:30px;
  line-height:1.32;
  margin-top:2em;
  padding-bottom:12px;
}
.article-body h2::after{
  content:"";position:absolute;left:0;bottom:0;width:48px;height:2px;
  background:var(--brand);box-shadow:0 0 12px rgba(198,245,66,.75);
}
.article-body h3{font-size:22px;line-height:1.4;margin-top:1.6em}
.article-body h4{font-size:18px;line-height:1.5;font-weight:600;margin-top:1.4em}
.article-body h2+p,.article-body h3+p,.article-body h4+p{margin-top:.8em}
.article-body ul>li{position:relative;padding-left:20px;margin:.5em 0;color:var(--text-2)}
.article-body ul>li::before{
  content:"";position:absolute;left:1px;top:.74em;width:7px;height:7px;
  border-radius:2px;background:var(--brand);
}
.article-body ol{counter-reset:item;padding-left:0}
.article-body ol>li{position:relative;padding-left:28px;margin:.5em 0;counter-increment:item;color:var(--text-2)}
.article-body ol>li::before{
  content:counter(item);
  position:absolute;left:0;top:.1em;
  color:var(--brand);font-weight:700;font-family:var(--font-num);font-size:15px;
}
.article-body blockquote{
  margin:1.4em 0;
  padding:16px 20px;
  border-left:3px solid var(--brand);
  background:var(--surface-1);
  border-radius:0 var(--radius-inner) var(--radius-inner) 0;
  color:var(--text-2);
}
.article-body blockquote p{color:var(--text-2)}
.article-body img{border-radius:var(--radius-img);border:1px solid var(--line-soft);filter:brightness(.94);margin:1.4em 0}
.article-body a{color:var(--brand);border-bottom:1px solid rgba(198,245,66,.4)}
.article-body a:hover{color:var(--neon-cyan);border-color:var(--neon-cyan)}
.article-body strong{color:#fff}
.article-body code{
  background:var(--surface-2);
  border:1px solid var(--line-soft);
  padding:2px 6px;border-radius:6px;
  font-size:15px;color:var(--brand);font-family:var(--font-num);
}
.article-body pre{
  background:var(--surface-2);
  border:1px solid var(--line-soft);
  border-radius:var(--radius-inner);
  padding:16px;
  overflow-x:auto;
}
.article-body pre code{background:none;border:0;padding:0}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;margin:1.4em 0}
.article-body th{background:var(--surface-2);color:var(--text-1);text-align:left;padding:12px 14px;border:1px solid var(--line-soft)}
.article-body td{padding:12px 14px;border:1px solid var(--line-soft);color:var(--text-2)}
.article-body tbody tr:nth-child(odd){background:var(--surface-1)}
.article-body hr{border:0;height:1px;background:linear-gradient(90deg,transparent,rgba(198,245,66,.6),transparent);margin:2em 0}

/* ---------- 空态 ---------- */
.empty-state{
  border:1px dashed var(--line-strong);
  background:var(--surface-1);
  border-radius:var(--radius-card);
  padding:52px 28px;
  text-align:center;
}
.empty-state svg{width:46px;height:46px;margin:0 auto 18px;stroke:var(--text-3);fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.empty-title{font-size:20px;font-weight:700;margin-bottom:8px}
.empty-text{color:var(--text-2);font-size:15px;line-height:1.85;max-width:460px;margin:0 auto 22px}
.skeleton{
  background:var(--surface-2);
  border-radius:var(--radius-inner);
  animation:skeletonPulse 1.6s infinite ease-in-out;
}
@keyframes skeletonPulse{0%,100%{opacity:.55}50%{opacity:1}}

/* ---------- 文末 ---------- */
.tag-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin-top:44px;padding-top:24px;border-top:1px solid var(--line-soft);
}
.tag-label{font-size:13px;letter-spacing:.06em;color:var(--text-3);margin-right:2px}
.article-foot{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:16px;margin-top:24px;
}
.share-set{display:flex;gap:10px}

/* ---------- 侧栏 ---------- */
.article-side{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px}
.side-box{
  background:var(--surface-1);
  border:1px solid var(--line-soft);
  border-radius:var(--radius-card);
  padding:20px;
  box-shadow:var(--shadow-card);
}
.side-title{
  font-size:14px;letter-spacing:.05em;color:var(--text-1);
  margin:0 0 14px;padding-bottom:10px;border-bottom:1px solid var(--line-soft);
}
.check-list li{position:relative;padding-left:18px;margin:10px 0;font-size:14px;line-height:1.7;color:var(--text-2)}
.check-list li::before{content:"";position:absolute;left:0;top:.62em;width:8px;height:8px;border-radius:2px;background:var(--brand)}
.side-links li+li{margin-top:10px}
.side-links a{display:block;font-size:14px;color:var(--text-2);line-height:1.6}
.side-links a:hover{color:var(--brand);transform:translateX(3px)}

/* ---------- 卡片 ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{
  display:flex;flex-direction:column;
  background:var(--surface-1);
  border:1px solid var(--line-soft);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-card);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.card:hover{transform:translateY(-3px);border-color:rgba(198,245,66,.45);box-shadow:var(--shadow-hover)}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--surface-2)}
.card-media img{width:100%;height:100%;object-fit:cover;filter:brightness(.88);transition:transform .25s var(--ease)}
.card:hover .card-media img{transform:scale(1.04)}
.card-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,13,12,.05),rgba(11,13,12,.62))}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.card-body h3{font-size:18px;line-height:1.45;margin-bottom:10px}
.card-body p{font-size:14px;line-height:1.78;color:var(--text-2);margin-bottom:16px}
.card-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;font-size:13px;color:var(--text-3);font-family:var(--font-num)}
.card-arrow{color:var(--text-3);transition:transform .2s var(--ease),color .2s var(--ease)}
.card:hover .card-arrow{color:var(--brand);transform:translateX(4px)}

/* ---------- CTA ---------- */
.cta{
  position:relative;
  display:grid;grid-template-columns:1.05fr 1fr;gap:32px;align-items:center;
  background:var(--surface-1);
  border:1px solid var(--line-soft);
  border-radius:var(--radius-card);
  padding:42px;
  overflow:hidden;
  box-shadow:var(--shadow-card);
}
.cta::before{
  content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;
  box-shadow:inset 0 0 0 1px rgba(198,245,66,.18);
}
.cta::after{
  content:"";position:absolute;top:0;right:0;width:110px;height:110px;
  background:linear-gradient(135deg,transparent 50%,rgba(198,245,66,.16) 50%);
  pointer-events:none;
}
.cta-copy h2{font-size:28px;line-height:1.3}
.cta-copy p{margin-top:14px;color:var(--text-2);font-size:15px;line-height:1.85;max-width:440px}
.subscribe-form{display:flex;gap:12px}
.form-input{
  flex:1;min-height:48px;padding:0 16px;
  background:var(--surface-2);
  border:1px solid var(--line-soft);
  border-radius:var(--radius-btn);
  color:var(--text-1);
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.form-input::placeholder{color:var(--text-3)}
.form-input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(198,245,66,.16),inset 0 0 12px rgba(198,245,66,.08)}
.form-input.is-error{border-color:var(--error);color:var(--error);animation:fieldShake .3s}
@keyframes fieldShake{0%,100%{transform:translateY(0)}50%{transform:translateY(2px)}}
.form-note{margin-top:12px;font-size:13px;color:var(--text-3);line-height:1.7}

/* ---------- 页脚 ---------- */
.site-footer{position:relative;margin-top:24px;background:var(--bg-deep);border-top:1px solid var(--line-soft);padding:64px 0 28px}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(198,245,66,.75),transparent);opacity:.5;
}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:32px}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:var(--text-2);max-width:340px}
.footer-col h3{font-size:13px;letter-spacing:.06em;color:var(--text-3);font-weight:600;margin-bottom:14px}
.footer-col a{display:inline-block;font-size:14px;line-height:2;color:var(--text-2)}
.footer-col a:hover{color:var(--brand)}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  margin-top:44px;padding-top:20px;
  border-top:1px solid var(--line-soft);
  font-size:13px;color:var(--text-3);
}
.footer-bottom .legal{color:var(--text-3)}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .article-layout{grid-template-columns:minmax(0,1fr) 240px;gap:36px}
}
@media (max-width:1023px){
  .container{padding:0 24px}
  .nav-wrap{gap:14px}
  .nav-toggle{display:flex}
  .main-nav{
    position:fixed;
    top:69px;left:0;right:0;bottom:0;
    margin-left:0;
    flex-direction:column;
    align-items:stretch;
    gap:2px;
    padding:20px 24px 40px;
    background:var(--bg-deep);
    border-left:1px solid var(--line-soft);
    overflow-y:auto;
    transform:translateY(-10px);
    opacity:0;
    pointer-events:none;
    transition:transform .22s var(--ease),opacity .22s var(--ease);
  }
  .main-nav.is-open{transform:translateY(0);opacity:1;pointer-events:auto}
  .nav-link{
    position:relative;
    padding:16px 14px 16px 18px;
    font-size:16px;
    border-bottom:1px solid var(--line-soft);
    border-radius:0;
  }
  .nav-link::before{
    content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
    width:3px;height:0;background:var(--brand);border-radius:2px;
    box-shadow:0 0 10px rgba(198,245,66,.8);
    transition:height .2s var(--ease);
  }
  .nav-link:hover::before,.nav-link.is-active::before{height:22px}
  .nav-link::after{display:none}
  .section{padding:72px 0}
  .section-tight{padding:56px 0}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:40px}
  .article-main{max-width:none}
  .article-side{position:static;flex-direction:row;flex-wrap:wrap}
  .side-box{flex:1 1 280px}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .cta{grid-template-columns:1fr;padding:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767px){
  .page-head{padding:28px 0 32px}
  .page-head h1{font-size:clamp(26px,7vw,34px)}
  .section{padding:56px 0}
  .article-body{font-size:16px}
  .article-body h2{font-size:24px}
  .article-body h3{font-size:20px}
  .section-head h2{font-size:24px}
  .cta-copy h2{font-size:23px}
}
@media (max-width:560px){
  .container{padding:0 18px}
  .brand-text strong{font-size:16px}
  .card-grid{grid-template-columns:1fr}
  .subscribe-form{flex-direction:column}
  .subscribe-form .btn{width:100%}
  .article-foot{flex-direction:column;align-items:flex-start}
  .article-foot .btn-ghost{width:auto}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap}
  .breadcrumb [aria-current="page"]{max-width:220px}
}

/* roulang page: category1 */
:root{
  --bg-base:#0B0D0C;
  --bg-deep:#070908;
  --surface-1:#141817;
  --surface-2:#1B211F;
  --line-soft:rgba(255,255,255,0.07);
  --line-strong:rgba(255,255,255,0.14);
  --brand:#C6F542;
  --brand-deep:#8FB821;
  --accent:#FF5A2B;
  --neon-cyan:#35E0D0;
  --text-1:#EDF2EC;
  --text-2:#9AA7A0;
  --text-3:#6B7873;
  --success:#4ADE80;
  --warn:#FBBF24;
  --error:#F87171;
  --info:#35E0D0;
  --radius-card:18px;
  --radius-inner:12px;
  --radius-btn:10px;
  --radius-img:14px;
  --shadow-card:0 0 0 1px var(--line-soft), 0 20px 44px -26px rgba(0,0,0,0.95);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --font-num:"Inter","Barlow Condensed",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg-base);
  color:var(--text-1);
  font-family:var(--font-cn);
  font-size:17px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--text-1);text-decoration:none;transition:color .18s ease-out,box-shadow .18s ease-out;}
a:hover{color:var(--brand);}
ul,ol{margin:0;padding:0;}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--text-1);}
p{margin:0;}
button,input{font-family:inherit;font-size:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
::selection{background:rgba(198,245,66,.28);color:#fff;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:90;
  background:rgba(11,13,12,0.86);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line-soft);
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
  background:linear-gradient(90deg,var(--brand),rgba(198,245,66,0) 55%);
  pointer-events:none;
}
.nav-wrap{display:flex;align-items:center;gap:28px;height:68px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--text-1);}
.brand:hover{color:var(--text-1);}
.brand-mark{
  width:34px;height:34px;border-radius:10px;flex:0 0 auto;
  display:flex;align-items:center;justify-content:center;
  background:var(--surface-2);
  border:1px solid var(--line-strong);
  box-shadow:inset 0 0 14px rgba(198,245,66,.12);
}
.brand-mark svg{width:20px;height:20px;display:block;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-family:var(--font-num);font-size:17px;font-weight:700;letter-spacing:.02em;color:var(--text-1);}
.brand-text em{font-style:normal;font-size:11px;letter-spacing:.08em;color:var(--text-2);}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-link{
  position:relative;padding:9px 14px;border-radius:8px;
  font-size:15px;color:var(--text-2);
  transition:color .18s ease-out,transform .18s ease-out;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;
  background:var(--brand);border-radius:2px;transform:scaleX(0);
  transform-origin:left center;transition:transform .18s ease-out;
}
.nav-link:hover{color:var(--text-1);transform:translateY(-1px);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--brand);text-shadow:0 0 14px rgba(198,245,66,.45);}
.nav-link.is-active::after{transform:scaleX(1);box-shadow:0 0 10px rgba(198,245,66,.55);}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:background-color .18s ease-out,color .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out,transform .18s ease-out,filter .18s ease-out;
}
.btn-sm{height:38px;padding:0 16px;font-size:14px;}
.btn-primary{background:linear-gradient(135deg,var(--brand-deep),var(--brand));color:#0B0D0C;}
.btn-primary:hover{color:#0B0D0C;filter:brightness(1.06);box-shadow:0 0 22px rgba(198,245,66,.28);}
.btn-primary:active{transform:translateY(1px);background:var(--brand-deep);}
.btn-outline{background:transparent;border-color:var(--line-strong);color:var(--text-1);}
.btn-outline:hover{border-color:var(--brand);color:var(--brand);box-shadow:0 0 18px rgba(198,245,66,.16);}
.btn-outline:active{transform:translateY(1px);}
.btn-ghost{background:transparent;border-color:transparent;color:var(--text-2);text-decoration:underline;text-underline-offset:5px;padding:0 4px;}
.btn-ghost:hover{color:var(--neon-cyan);}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;box-shadow:none;filter:none;}

.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;
  background:var(--surface-2);border:1px solid var(--line-strong);
  flex-direction:column;align-items:center;justify-content:center;gap:4px;cursor:pointer;
  padding:0;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text-1);border-radius:2px;transition:transform .2s ease-out,opacity .2s ease-out;}
.nav-toggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

/* ---------- breadcrumb & page head ---------- */
.crumb-bar{padding-top:96px;background:var(--bg-base);}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--text-2);}
.crumb a{color:var(--text-2);}
.crumb a:hover{color:var(--brand);}
.crumb .sep{color:var(--text-3);}
.crumb .current{color:var(--text-1);}

.page-head{
  position:relative;overflow:hidden;
  background:var(--surface-1);
  border-bottom:1px solid var(--line-soft);
  padding:32px 0 72px;
  margin-top:16px;
}
.page-head-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  opacity:.2;filter:saturate(.8);
}
.page-head::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,13,12,.72) 0%,rgba(11,13,12,.94) 78%,var(--bg-base) 100%);
}
.page-head::after{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,rgba(198,245,66,0),var(--brand),rgba(198,245,66,0));
}
.page-head-inner{position:relative;display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;}
.page-head-copy{max-width:660px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:600;letter-spacing:.08em;
  color:var(--brand);text-transform:uppercase;
  padding:5px 12px;border-radius:6px;
  background:rgba(198,245,66,.08);border:1px solid rgba(198,245,66,.24);
  margin-bottom:20px;
}
.page-head h1{
  font-size:clamp(30px,4vw,48px);line-height:1.22;font-weight:800;letter-spacing:-.01em;
  margin-bottom:18px;
}
.page-head h1 span{color:var(--brand);}
.page-head-copy p{color:var(--text-2);font-size:16px;line-height:1.85;max-width:640px;}
.page-head-copy p + p{margin-top:10px;}
.head-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.tag{
  display:inline-flex;align-items:center;
  font-size:12px;font-weight:600;letter-spacing:.04em;
  padding:5px 11px;border-radius:6px;
  background:var(--surface-2);border:1px solid var(--line-soft);color:var(--text-2);
}
.tag--accent{background:var(--accent);border-color:transparent;color:#180A04;}
.tag--brand{background:rgba(198,245,66,.12);border-color:rgba(198,245,66,.3);color:var(--brand);}
.page-head-figure{margin:0;}
.page-head-figure img{
  width:100%;aspect-ratio:4/5;object-fit:cover;
  border-radius:var(--radius-img);
  border:1px solid var(--line-soft);
  filter:brightness(.9) saturate(.95);
  background:var(--surface-2);
}
.page-head-figure figcaption{font-size:13px;color:var(--text-3);margin-top:10px;}

/* ---------- anchor bar ---------- */
.anchor-bar{
  position:sticky;top:68px;z-index:60;
  background:rgba(20,24,23,.94);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line-soft);
}
.anchor-scroll{display:flex;gap:6px;overflow-x:auto;padding-top:10px;padding-bottom:10px;scrollbar-width:none;}
.anchor-scroll::-webkit-scrollbar{display:none;}
.anchor-link{
  position:relative;flex:0 0 auto;
  padding:8px 14px;border-radius:8px;
  font-size:14px;color:var(--text-2);white-space:nowrap;
  transition:color .18s ease-out,background-color .18s ease-out;
}
.anchor-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  background:var(--brand);border-radius:2px;transform:scaleX(0);
  transform-origin:left center;transition:transform .18s ease-out;
}
.anchor-link:hover{color:var(--text-1);background:var(--surface-2);}
.anchor-link:hover::after{transform:scaleX(1);}
.anchor-link.is-active{color:var(--brand);}
.anchor-link.is-active::after{transform:scaleX(1);box-shadow:0 0 10px rgba(198,245,66,.55);}

/* ---------- sections ---------- */
.section{padding:96px 0;scroll-margin-top:140px;}
.section--alt{background:var(--bg-deep);border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);}
.section--tight{padding:72px 0;}
.grid-texture{
  background-image:linear-gradient(rgba(255,255,255,.028) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.028) 1px,transparent 1px);
  background-size:56px 56px;
}
.section-head{max-width:720px;margin-bottom:44px;}
.section-head .kicker{
  display:block;font-size:12px;font-weight:600;letter-spacing:.08em;
  color:var(--accent);margin-bottom:12px;
}
.section-head h2{font-size:clamp(24px,2.6vw,32px);line-height:1.3;}
.section-head h2::after{
  content:"";display:block;width:56px;height:3px;border-radius:2px;
  background:linear-gradient(90deg,var(--brand),rgba(198,245,66,.1));
  margin-top:18px;
}
.section-head p{color:var(--text-2);font-size:15px;line-height:1.8;margin-top:16px;}

/* ---------- step rail ---------- */
.step-rail{list-style:none;position:relative;}
.step-rail::before{
  content:"";position:absolute;left:19px;top:14px;bottom:34px;width:2px;
  background:linear-gradient(180deg,var(--brand),rgba(198,245,66,.06));
}
.step-item{position:relative;display:grid;grid-template-columns:64px 1fr;gap:20px;}
.step-item + .step-item{margin-top:22px;}
.step-num{
  position:relative;z-index:1;
  width:40px;height:40px;border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  background:var(--surface-2);border:1px solid var(--line-strong);
  color:var(--brand);
  font-family:var(--font-num);font-size:18px;font-weight:700;letter-spacing:.02em;
}
.step-body{
  background:var(--surface-1);border:1px solid var(--line-soft);
  border-radius:var(--radius-card);padding:22px 24px;
  box-shadow:var(--shadow-card);
  transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.step-body:hover{transform:translateY(-3px);border-color:rgba(198,245,66,.3);box-shadow:0 0 0 1px rgba(198,245,66,.22),0 0 22px rgba(198,245,66,.14),0 20px 44px -26px rgba(0,0,0,.95);}
.step-body h3{font-size:19px;line-height:1.5;margin-bottom:8px;}
.step-body p{color:var(--text-2);font-size:15.5px;line-height:1.85;}
.step-body .tag{margin-top:14px;}

/* ---------- table ---------- */
.table-wrap{
  position:relative;overflow-x:auto;border-radius:var(--radius-card);
  border:1px solid var(--line-soft);background:var(--surface-1);
  -webkit-overflow-scrolling:touch;
}
.table-wrap::after{
  content:"";position:absolute;top:0;right:0;bottom:0;width:40px;pointer-events:none;
  background:linear-gradient(90deg,rgba(11,13,12,0),rgba(11,13,12,.9));
}
.data-table{width:100%;min-width:660px;border-collapse:collapse;}
.data-table th{
  background:var(--surface-2);color:var(--text-2);
  font-size:13px;font-weight:600;letter-spacing:.06em;text-align:left;
  padding:16px 22px;white-space:nowrap;
}
.data-table td{
  padding:16px 22px;font-size:15px;line-height:1.75;color:var(--text-2);
  border-top:1px solid var(--line-soft);vertical-align:top;
}
.data-table tbody tr:nth-child(odd){background:rgba(255,255,255,.02);}
.data-table td strong{color:var(--text-1);font-weight:600;}
.data-table td .ok{color:var(--success);}
.data-table td .risk{color:var(--warn);}

/* ---------- split ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;}
.split + .split{margin-top:72px;}
.split--reverse .split-media{order:2;}
.split-media{margin:0;}
.split-media img{
  width:100%;aspect-ratio:16/11;object-fit:cover;
  border-radius:var(--radius-img);border:1px solid var(--line-soft);
  filter:brightness(.9);background:var(--surface-2);
}
.split-media figcaption{font-size:13px;color:var(--text-3);margin-top:10px;}
.split-copy h3{font-size:23px;line-height:1.45;margin-bottom:14px;}
.split-copy p{color:var(--text-2);font-size:16px;line-height:1.9;}
.field-list{list-style:none;margin-top:22px;display:grid;gap:12px;}
.field-list li{
  background:var(--surface-2);border:1px solid var(--line-soft);
  border-radius:var(--radius-inner);padding:14px 16px;
  font-size:15px;line-height:1.75;color:var(--text-2);
}
.field-list b{display:block;color:var(--text-1);font-weight:600;margin-bottom:4px;font-size:15px;}

/* ---------- notices ---------- */
.notice-list{display:grid;gap:14px;max-width:900px;}
.notice{
  display:grid;grid-template-columns:auto 1fr;gap:16px;
  background:var(--surface-1);border:1px solid var(--line-soft);
  border-left:3px solid var(--neon-cyan);
  border-radius:var(--radius-inner);padding:18px 22px;
}
.notice--warn{border-left-color:var(--accent);}
.notice-icon{
  width:26px;height:26px;border-radius:8px;flex:0 0 auto;margin-top:2px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(53,224,208,.12);color:var(--neon-cyan);
  font-family:var(--font-num);font-size:14px;font-weight:700;
}
.notice--warn .notice-icon{background:rgba(255,90,43,.12);color:var(--accent);}
.notice h3{font-size:16.5px;margin-bottom:6px;}
.notice p{color:var(--text-2);font-size:15px;line-height:1.8;}

/* ---------- FAQ ---------- */
.faq-list{max-width:860px;}
.faq-item{
  position:relative;overflow:hidden;
  background:var(--surface-1);border:1px solid var(--line-soft);
  border-radius:var(--radius-inner);margin-bottom:12px;
  transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.faq-item:hover{border-color:var(--line-strong);}
.faq-item.is-open{border-color:rgba(198,245,66,.34);box-shadow:0 0 20px rgba(198,245,66,.1);}
.faq-item.is-open::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--brand);
  box-shadow:0 0 14px rgba(198,245,66,.6);
}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:none;border:0;cursor:pointer;text-align:left;
  padding:18px 22px;font-size:17px;font-weight:600;color:var(--text-1);line-height:1.6;
}
.faq-q:hover{color:var(--brand);}
.faq-icon{position:relative;flex:0 0 auto;width:20px;height:20px;}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--brand);border-radius:2px;
  transition:transform .2s ease-out,opacity .2s ease-out;
}
.faq-icon::before{left:0;top:9px;width:20px;height:2px;}
.faq-icon::after{left:9px;top:0;width:2px;height:20px;}
.faq-item.is-open .faq-icon::after{transform:scaleY(0);opacity:0;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease-out;}
.faq-a-inner{padding:0 22px 20px;color:var(--text-2);font-size:15px;line-height:1.85;}

/* ---------- related ---------- */
.rec-list{display:grid;gap:16px;max-width:960px;}
.rec-card{
  display:grid;grid-template-columns:200px 1fr auto;gap:22px;align-items:center;
  background:var(--surface-1);border:1px solid var(--line-soft);
  border-radius:var(--radius-card);padding:16px;
  color:var(--text-1);
  transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out,background-color .2s ease-out;
}
.rec-card:hover{transform:translateY(-3px);border-color:rgba(198,245,66,.3);color:var(--text-1);background:var(--surface-2);box-shadow:0 0 22px rgba(198,245,66,.12);}
.rec-card img{width:100%;aspect-ratio:3/2;object-fit:cover;border-radius:var(--radius-img);border:1px solid var(--line-soft);filter:brightness(.92);}
.rec-body h3{font-size:18px;line-height:1.5;margin:10px 0 8px;}
.rec-body p{font-size:14.5px;color:var(--text-2);line-height:1.75;}
.rec-meta{display:flex;flex-wrap:wrap;gap:12px;font-size:13px;color:var(--text-3);font-family:var(--font-num);}
.rec-arrow{font-size:20px;color:var(--brand);padding-right:8px;transition:transform .2s ease-out;}
.rec-card:hover .rec-arrow{transform:translateX(4px);}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--surface-1);
  border:1px solid var(--line-soft);
  border-radius:var(--radius-card);
  padding:44px 48px;
  display:grid;grid-template-columns:1.5fr auto;gap:28px;align-items:center;
  box-shadow:var(--shadow-card);
}
.cta-band::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,rgba(198,245,66,0),var(--brand),rgba(198,245,66,0));
}
.cta-band::after{
  content:"";position:absolute;top:0;right:0;width:110px;height:110px;
  background:linear-gradient(135deg,transparent 48%,rgba(198,245,66,.16) 48%);
  pointer-events:none;
}
.cta-band h2{font-size:clamp(22px,2.4vw,30px);line-height:1.35;margin-bottom:12px;}
.cta-band p{color:var(--text-2);font-size:15.5px;line-height:1.8;max-width:620px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ---------- footer ---------- */
.site-footer{
  background:var(--bg-deep);
  border-top:1px solid var(--line-soft);
  padding:72px 0 32px;
  position:relative;
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,rgba(198,245,66,0),var(--brand) 40%,rgba(198,245,66,0));
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{color:var(--text-2);font-size:14.5px;line-height:1.85;max-width:360px;}
.footer-col h3{
  font-size:13px;font-weight:600;letter-spacing:.06em;color:var(--text-3);
  margin-bottom:14px;
}
.footer-col ul{list-style:none;}
.footer-col li{margin-bottom:10px;}
.footer-col a{font-size:14px;color:var(--text-2);line-height:2;}
.footer-col a:hover{color:var(--brand);}
.footer-bottom{
  margin-top:52px;padding-top:22px;
  border-top:1px solid var(--line-soft);
  display:flex;flex-wrap:wrap;gap:12px 24px;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}
.footer-bottom .legal{max-width:640px;line-height:1.7;}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .container{padding:0 24px;}
  .split{gap:36px;}
}
@media (max-width:1023px){
  .container{padding:0 24px;}
  .nav-toggle{display:flex;}
  .main-nav{
    position:fixed;top:68px;right:0;bottom:0;width:min(76vw,320px);
    flex-direction:column;align-items:stretch;gap:6px;
    margin-left:0;padding:24px 20px;
    background:var(--bg-deep);
    border-left:3px solid var(--brand);
    transform:translateX(105%);
    transition:transform .22s ease-out;
    z-index:80;overflow-y:auto;
  }
  .main-nav.is-open{transform:translateX(0);}
  .nav-link{
    padding:14px 16px;border-left:3px solid transparent;border-radius:0 8px 8px 0;
    font-size:16px;color:var(--text-1);
  }
  .nav-link::after{display:none;}
  .nav-link:hover{transform:none;background:var(--surface-1);}
  .nav-link.is-active{border-left-color:var(--brand);background:rgba(198,245,66,.08);}
  .page-head-inner{grid-template-columns:1fr;gap:32px;}
  .page-head-figure{max-width:460px;}
  .page-head-figure img{aspect-ratio:16/10;}
  .cta-band{grid-template-columns:1fr;padding:32px 26px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .split{grid-template-columns:1fr;gap:26px;}
  .split--reverse .split-media{order:0;}
  .split + .split{margin-top:52px;}
  .rec-card{grid-template-columns:150px 1fr auto;gap:18px;}
  .section{padding:72px 0;}
  .anchor-bar{top:60px;}
  .nav-wrap{height:60px;}
  .main-nav{top:60px;}
}
@media (max-width:768px){
  body{font-size:16px;}
  .crumb-bar{padding-top:84px;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:32px;}
  .step-item{grid-template-columns:48px 1fr;gap:14px;}
  .step-rail::before{left:15px;}
  .step-num{width:32px;height:32px;font-size:15px;border-radius:8px;}
  .step-body{padding:18px;}
  .rec-card{grid-template-columns:1fr;gap:14px;}
  .rec-arrow{display:none;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
}
@media (max-width:520px){
  .container{padding:0 18px;}
  .page-head{padding:24px 0 52px;}
  .page-head h1{font-size:30px;}
  .brand-text strong{font-size:16px;}
  .btn{padding:0 16px;}
  .cta-band{padding:26px 20px;}
  .notice{padding:16px;}
  .section{padding:48px 0;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category2 */
/* ============================================================
   mksports在线登录入口 · 夜场计分屏设计系统
   ============================================================ */
:root{
  --bg-base:#0B0D0C;
  --bg-deep:#070908;
  --surface-1:#141817;
  --surface-2:#1B211F;
  --line-soft:rgba(255,255,255,0.07);
  --line-strong:rgba(255,255,255,0.14);
  --brand:#C6F542;
  --brand-deep:#8FB821;
  --accent:#FF5A2B;
  --neon-cyan:#35E0D0;
  --text-1:#EDF2EC;
  --text-2:#9AA7A0;
  --text-3:#6B7873;
  --success:#4ADE80;
  --warn:#FBBF24;
  --error:#F87171;
  --radius-card:18px;
  --radius-inner:12px;
  --radius-btn:10px;
  --radius-badge:6px;
  --radius-img:14px;
  --shadow-card:0 0 0 1px var(--line-soft), 0 20px 44px -26px rgba(0,0,0,0.95);
  --shadow-glow:0 0 22px rgba(198,245,66,0.22);
  --space-section:96px;
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --font-num:"Inter","Barlow Condensed",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding-top:68px;
  background:var(--bg-base);
  color:var(--text-1);
  font-family:var(--font-cn);
  font-size:16.5px;
  line-height:1.9;
  letter-spacing:0.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--radius-img);}
a{color:var(--text-1);text-decoration:none;transition:color .18s ease-out,box-shadow .18s ease-out;}
a:hover{color:var(--brand);}
a:focus-visible,button:focus-visible,input:focus-visible{
  outline:2px solid var(--brand);
  outline-offset:2px;
  border-radius:6px;
}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input{font-family:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;letter-spacing:0;}
p{margin:0 0 1.15em;}
p:last-child{margin-bottom:0;}
::selection{background:var(--brand);color:var(--bg-base);}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 32px;
}
.section{padding:var(--space-section) 0;}
.section--tight{padding:64px 0;}
.section-head{max-width:720px;margin-bottom:40px;}
.section-head h2{font-size:32px;font-weight:700;margin-bottom:14px;}
.section-head p{color:var(--text-2);font-size:15px;line-height:1.85;margin:0;}
.neon-line{
  height:1px;
  background:linear-gradient(90deg,var(--brand),rgba(198,245,66,0));
  margin:24px 0 0;
}
.hairline{height:1px;background:var(--line-soft);border:0;margin:0;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:46px;
  padding:0 22px;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:600;
  line-height:1;
  white-space:nowrap;
  transition:background-color .18s ease-out,color .18s ease-out,box-shadow .18s ease-out,transform .18s ease-out,border-color .18s ease-out;
}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px;}
.btn-primary{
  background:linear-gradient(135deg,var(--brand-deep),var(--brand));
  color:#0B0D0C;
}
.btn-primary:hover{
  color:#0B0D0C;
  filter:brightness(1.06);
  box-shadow:var(--shadow-glow);
}
.btn-primary:active{background:var(--brand-deep);transform:translateY(1px);}
.btn-outline{
  background:transparent;
  border:1px solid var(--line-strong);
  color:var(--text-1);
}
.btn-outline:hover{border-color:var(--brand);color:var(--brand);}
.btn-outline:active{transform:translateY(1px);}
.btn-ghost{
  min-height:auto;
  padding:0;
  border-radius:0;
  color:var(--text-1);
  border-bottom:1px solid var(--line-strong);
}
.btn-ghost:hover{color:var(--neon-cyan);border-bottom-color:var(--neon-cyan);}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;pointer-events:none;}
.btn.is-loading{color:transparent;position:relative;}
.btn.is-loading::after{
  content:"";
  position:absolute;left:50%;top:50%;
  width:6px;height:6px;margin:-3px 0 0 -3px;
  border-radius:50%;background:#0B0D0C;
  animation:pulse-dot .9s infinite ease-in-out;
}
@keyframes pulse-dot{
  0%,100%{box-shadow:0 0 0 0 rgba(11,13,12,.9),6px 0 0 -2px rgba(11,13,12,.5),-6px 0 0 -2px rgba(11,13,12,.5);}
  50%{box-shadow:0 0 0 0 rgba(11,13,12,.9),6px 0 0 0 rgba(11,13,12,.9),-6px 0 0 0 rgba(11,13,12,.9);}
}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 10px;
  border-radius:var(--radius-badge);
  background:var(--accent);
  color:#120A06;
  font-size:12px;
  font-weight:600;
  letter-spacing:.04em;
}
.badge-soft{
  background:rgba(198,245,66,0.12);
  color:var(--brand);
  border:1px solid rgba(198,245,66,0.28);
}
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 12px;
  border-radius:var(--radius-badge);
  border:1px solid var(--line-soft);
  background:var(--surface-2);
  color:var(--text-2);
  font-size:13px;
  line-height:1.4;
}
.tag-num{font-family:var(--font-num);color:var(--brand);font-weight:700;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:120;
  height:68px;
  background:rgba(11,13,12,0.86);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line-soft);
}
.site-header::after{
  content:"";
  position:absolute;left:0;right:0;bottom:-1px;height:1px;
  background:linear-gradient(90deg,rgba(198,245,66,0),var(--brand) 12%,rgba(198,245,66,0) 62%);
  opacity:.7;
}
.nav-wrap{
  height:68px;
  display:flex;
  align-items:center;
  gap:28px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:36px;height:36px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:10px;
  background:rgba(198,245,66,0.10);
  border:1px solid rgba(198,245,66,0.28);
  box-shadow:0 0 16px rgba(198,245,66,0.16) inset;
}
.brand-mark svg{width:20px;height:20px;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-family:var(--font-num);font-size:16px;font-weight:700;letter-spacing:.02em;color:var(--text-1);}
.brand-text em{font-style:normal;font-size:11px;letter-spacing:.08em;color:var(--text-2);}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:6px;}
.nav-link{
  position:relative;
  font-size:15px;
  color:var(--text-2);
  padding:22px 0;
  transition:color .18s ease-out,transform .18s ease-out;
}
.nav-link::after{
  content:"";
  position:absolute;left:0;right:0;bottom:14px;height:2px;
  background:var(--brand);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .18s ease-out;
  opacity:0;
}
.nav-link:hover{color:var(--text-1);transform:translateY(-1px);}
.nav-link:hover::after{transform:scaleX(.6);opacity:.7;}
.nav-link.is-active{color:var(--brand);text-shadow:0 0 12px rgba(198,245,66,0.45);}
.nav-link.is-active::after{transform:scaleX(1);opacity:1;box-shadow:0 0 12px rgba(198,245,66,0.5);}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:14px;}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:10px;
  border:1px solid var(--line-strong);
  align-items:center;justify-content:center;
  flex-direction:column;gap:5px;
}
.nav-toggle span{
  display:block;width:18px;height:2px;background:var(--text-1);border-radius:2px;
  transition:transform .18s ease-out,opacity .18s ease-out;
}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ---------- 页头 ---------- */
.page-hero{
  position:relative;
  overflow:hidden;
  background:var(--surface-1);
  border-bottom:1px solid var(--line-soft);
}
.page-hero::before{
  content:"";
  position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.png");
  background-size:cover;
  background-position:center;
  opacity:.14;
  filter:saturate(.8);
}
.page-hero::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,13,12,0.55),rgba(11,13,12,0.94));
}
.page-hero .container{position:relative;z-index:2;}
.hero-grid{
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:48px;
  align-items:center;
  padding:76px 0 72px;
}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:14px;color:var(--text-2);
  margin-bottom:16px;
}
.breadcrumb a{color:var(--text-2);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:var(--text-3);}
.breadcrumb .current{color:var(--text-1);}
.kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.06em;color:var(--brand);
  margin-bottom:16px;
}
.kicker::before{content:"";width:22px;height:2px;background:var(--brand);border-radius:2px;}
.page-hero h1{
  font-size:46px;
  font-weight:800;
  line-height:1.22;
  margin-bottom:20px;
}
.page-hero h1 .hl{color:var(--brand);}
.hero-lead{
  font-size:16px;
  line-height:1.9;
  color:var(--text-2);
  max-width:620px;
  margin-bottom:28px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;}
.hero-visual{position:relative;}
.hero-visual img{
  width:100%;
  aspect-ratio:4/5;
  object-fit:cover;
  border:1px solid var(--line-soft);
  box-shadow:var(--shadow-card);
  filter:brightness(.92);
}
.hero-visual::after{
  content:"";
  position:absolute;inset:0;
  border-radius:var(--radius-img);
  background:linear-gradient(180deg,rgba(11,13,12,0) 45%,rgba(11,13,12,0.72));
  pointer-events:none;
}
.hero-caption{
  position:absolute;
  left:18px;right:18px;bottom:16px;
  z-index:3;
  font-size:13px;
  color:var(--text-2);
}

/* ---------- 页内锚点导航 ---------- */
.anchor-bar{
  position:sticky;
  top:68px;
  z-index:80;
  background:rgba(11,13,12,0.92);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line-soft);
}
.anchor-scroll{
  display:flex;
  gap:26px;
  overflow-x:auto;
  scrollbar-width:none;
  padding:0 0 2px;
}
.anchor-scroll::-webkit-scrollbar{display:none;}
.anchor-link{
  position:relative;
  flex:0 0 auto;
  padding:16px 2px;
  font-size:14.5px;
  color:var(--text-2);
  white-space:nowrap;
  transition:color .18s ease-out;
}
.anchor-link::after{
  content:"";
  position:absolute;left:0;right:0;bottom:8px;height:2px;
  background:var(--brand);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .18s ease-out;
}
.anchor-link:hover{color:var(--text-1);}
.anchor-link.is-active{color:var(--brand);}
.anchor-link.is-active::after{transform:scaleX(1);box-shadow:0 0 10px rgba(198,245,66,0.5);}

/* ---------- 左右对照面板 ---------- */
.compare-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:0;
  border:1px solid var(--line-soft);
  border-radius:var(--radius-card);
  overflow:hidden;
  background:var(--surface-1);
  box-shadow:var(--shadow-card);
}
.compare-col{padding:30px 28px;}
.compare-col + .compare-col{border-left:1px solid var(--line-soft);}
.compare-col h3{
  font-size:20px;
  display:flex;align-items:center;gap:10px;
  margin-bottom:6px;
}
.dot{
  width:10px;height:10px;border-radius:3px;display:inline-block;
  background:var(--accent);
  transform:rotate(45deg);
}
.dot-good{background:var(--brand);}
.compare-col .col-sub{font-size:14px;color:var(--text-3);margin-bottom:20px;}
.compare-list li{
  position:relative;
  padding:14px 0 14px 22px;
  border-top:1px solid var(--line-soft);
  font-size:15px;
  color:var(--text-2);
  line-height:1.8;
}
.compare-list li:first-child{border-top:0;}
.compare-list li::before{
  content:"";
  position:absolute;left:0;top:23px;
  width:8px;height:8px;border-radius:2px;
  background:var(--accent);
}
.compare-list.list-good li::before{background:var(--brand);}
.compare-list li strong{color:var(--text-1);font-weight:600;}
.compare-note{
  margin-top:24px;
  padding:16px 18px;
  border-radius:var(--radius-inner);
  background:var(--surface-2);
  border:1px solid var(--line-soft);
  font-size:14px;
  color:var(--text-2);
  line-height:1.8;
}

/* ---------- 要点卡网格（2 列） ---------- */
.point-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:24px;
}
.point-card{
  position:relative;
  padding:26px 26px 24px;
  background:var(--surface-1);
  border:1px solid var(--line-soft);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.point-card:hover{
  transform:translateY(-3px);
  border-color:rgba(198,245,66,0.35);
  box-shadow:var(--shadow-card),var(--shadow-glow);
}
.point-card .num{
  font-family:var(--font-num);
  font-size:15px;
  font-weight:700;
  color:var(--brand);
  letter-spacing:.08em;
  display:block;
  margin-bottom:12px;
}
.point-card h3{font-size:21px;margin-bottom:12px;}
.point-card p{font-size:15px;color:var(--text-2);line-height:1.85;}
.point-card .card-foot{
  margin-top:20px;
  padding-top:16px;
  border-top:1px solid var(--line-soft);
  display:flex;flex-wrap:wrap;gap:8px;
}
.point-card.is-media{padding:0;overflow:hidden;}
.point-card.is-media img{
  border-radius:0;
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
  filter:brightness(.9);
  transition:transform .25s ease-out;
}
.point-card.is-media:hover img{transform:scale(1.04);}
.point-card.is-media .body{padding:22px 24px 24px;}

/* ---------- 核对表 ---------- */
.table-wrap{
  position:relative;
  border:1px solid var(--line-soft);
  border-radius:var(--radius-card);
  background:var(--surface-1);
  overflow-x:auto;
}
table.check-table{
  width:100%;
  border-collapse:collapse;
  min-width:680px;
  font-size:15px;
}
.check-table thead th{
  background:var(--surface-2);
  color:var(--text-2);
  font-weight:600;
  font-size:13.5px;
  letter-spacing:.04em;
  text-align:left;
  padding:16px 22px;
  border-bottom:1px solid var(--line-soft);
  white-space:nowrap;
}
.check-table tbody td{
  padding:16px 22px;
  border-bottom:1px solid var(--line-soft);
  color:var(--text-2);
  line-height:1.8;
  vertical-align:top;
}
.check-table tbody tr:nth-child(odd){background:rgba(27,33,31,0.55);}
.check-table tbody tr:hover{background:var(--surface-2);}
.check-table tbody tr:last-child td{border-bottom:0;}
.check-table td:first-child{color:var(--text-1);font-weight:600;white-space:nowrap;}
.state-ok{color:var(--success);font-weight:600;}
.state-warn{color:var(--warn);font-weight:600;}
.table-hint{font-size:13px;color:var(--text-3);margin-top:14px;}

/* ---------- 步骤时间线 ---------- */
.timeline{
  position:relative;
  padding-left:34px;
}
.timeline::before{
  content:"";
  position:absolute;left:9px;top:8px;bottom:8px;
  width:2px;
  background:linear-gradient(180deg,var(--brand),rgba(198,245,66,0.05));
}
.timeline-item{position:relative;padding-bottom:32px;}
.timeline-item:last-child{padding-bottom:0;}
.timeline-item::before{
  content:"";
  position:absolute;left:-30px;top:8px;
  width:12px;height:12px;border-radius:4px;
  background:var(--bg-base);
  border:2px solid var(--brand);
  transform:rotate(45deg);
}
.timeline-item h3{font-size:19px;margin-bottom:8px;}
.timeline-item p{font-size:15px;color:var(--text-2);line-height:1.85;max-width:720px;}
.timeline-item .time{
  font-family:var(--font-num);
  font-size:13px;
  color:var(--text-3);
  letter-spacing:.05em;
}

/* ---------- 图文说明区 ---------- */
.split{
  display:grid;
  grid-template-columns:6fr 6fr;
  gap:44px;
  align-items:center;
}
.split-media{position:relative;}
.split-media img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  border:1px solid var(--line-soft);
  filter:brightness(.92);
}
.split-media figcaption{font-size:13px;color:var(--text-3);margin-top:12px;}
.split-body h2{font-size:30px;margin-bottom:18px;}
.split-body p{color:var(--text-2);max-width:46ch;}
.split-list{margin-top:22px;display:grid;gap:12px;}
.split-list li{
  position:relative;
  padding-left:20px;
  font-size:15px;
  color:var(--text-2);
}
.split-list li::before{
  content:"";
  position:absolute;left:0;top:11px;
  width:7px;height:7px;background:var(--brand);border-radius:2px;
}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:14px;max-width:900px;}
.faq-item{
  border:1px solid var(--line-soft);
  border-radius:12px;
  background:var(--surface-1);
  overflow:hidden;
  transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.faq-item.is-open{border-color:rgba(198,245,66,0.4);box-shadow:var(--shadow-glow);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:18px 22px;
  text-align:left;
  font-size:17px;
  font-weight:600;
  color:var(--text-1);
  position:relative;
}
.faq-q:hover{color:var(--brand);}
.faq-icon{
  flex:0 0 auto;
  width:24px;height:24px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:6px;
  border:1px solid var(--line-strong);
  font-family:var(--font-num);
  font-size:15px;
  color:var(--brand);
  line-height:1;
}
.faq-a{
  display:none;
  padding:0 22px 20px 25px;
  border-left:3px solid var(--brand);
  margin-left:0;
  color:var(--text-2);
  font-size:15px;
  line-height:1.85;
}
.faq-item.is-open .faq-a{display:block;}

/* ---------- 相关推荐 ---------- */
.related-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:24px;
}
.related-card{
  display:grid;
  grid-template-columns:170px 1fr;
  gap:18px;
  padding:18px;
  background:var(--surface-1);
  border:1px solid var(--line-soft);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  transition:transform .2s ease-out,border-color .2s ease-out;
}
.related-card:hover{transform:translateY(-3px);border-color:rgba(198,245,66,0.32);}
.related-card img{
  width:100%;
  height:100%;
  min-height:110px;
  object-fit:cover;
  border-radius:var(--radius-inner);
  filter:brightness(.9);
}
.related-card h3{font-size:18px;margin:8px 0 8px;}
.related-card p{font-size:14px;color:var(--text-2);line-height:1.75;}
.related-card .meta{
  margin-top:10px;
  font-family:var(--font-num);
  font-size:12.5px;
  color:var(--text-3);
  letter-spacing:.04em;
}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;
  background:var(--surface-1);
  border:1px solid var(--line-soft);
  border-radius:var(--radius-card);
  padding:44px 40px;
  overflow:hidden;
  box-shadow:var(--shadow-card);
}
.cta-band::before{
  content:"";
  position:absolute;top:0;left:40px;right:40px;height:1px;
  background:linear-gradient(90deg,var(--brand),rgba(198,245,66,0));
}
.cta-band::after{
  content:"";
  position:absolute;top:-1px;right:-1px;
  width:74px;height:74px;
  background:linear-gradient(135deg,rgba(198,245,66,0.22),rgba(198,245,66,0));
  clip-path:polygon(100% 0,0 0,100% 100%);
}
.cta-grid{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:34px;
  align-items:center;
}
.cta-grid h2{font-size:28px;margin-bottom:12px;}
.cta-grid p{color:var(--text-2);font-size:15px;max-width:44ch;}
.cta-form{display:flex;gap:12px;}
.cta-form input[type="email"]{
  flex:1 1 auto;
  min-height:46px;
  padding:0 16px;
  border-radius:var(--radius-btn);
  background:var(--surface-2);
  border:1px solid var(--line-soft);
  color:var(--text-1);
  font-size:15px;
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.cta-form input[type="email"]::placeholder{color:var(--text-3);}
.cta-form input[type="email"]:focus{
  outline:none;
  border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(198,245,66,0.14);
}
.cta-form.is-error input[type="email"]{
  border-color:var(--error);
  animation:shake .22s ease-out 1;
}
@keyframes shake{
  0%{transform:translateY(0);}
  50%{transform:translateY(2px);}
  100%{transform:translateY(0);}
}
.form-msg{font-size:13.5px;margin-top:10px;min-height:20px;color:var(--text-3);}
.form-msg.is-error{color:var(--error);}
.form-msg.is-ok{color:var(--success);}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--bg-deep);
  border-top:1px solid var(--line-soft);
  position:relative;
  padding:64px 0 28px;
  margin-top:var(--space-section);
}
.site-footer::before{
  content:"";
  position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,var(--brand) 30%,rgba(198,245,66,0.1) 70%,transparent);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:36px;
}
.footer-brand p{
  margin-top:18px;
  font-size:14px;
  line-height:1.85;
  color:var(--text-2);
  max-width:36ch;
}
.footer-col h3{
  font-size:13px;
  letter-spacing:.06em;
  color:var(--text-3);
  font-weight:600;
  margin-bottom:14px;
}
.footer-col ul li{margin-bottom:2px;}
.footer-col ul a{
  display:inline-block;
  padding:5px 0;
  font-size:14px;
  color:var(--text-2);
}
.footer-col ul a:hover{color:var(--brand);}
.footer-bottom{
  margin-top:46px;
  padding-top:20px;
  border-top:1px solid var(--line-soft);
  display:flex;
  flex-wrap:wrap;
  gap:12px 28px;
  justify-content:space-between;
  font-size:13px;
  color:var(--text-3);
}
.footer-bottom .legal{max-width:60ch;}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .page-hero h1{font-size:40px;}
  .point-grid{gap:20px;}
}
@media (max-width:1023px){
  body{padding-top:60px;}
  .container{padding:0 24px;}
  .site-header,.nav-wrap{height:60px;}
  .nav-toggle{display:inline-flex;}
  .main-nav{
    position:fixed;
    top:60px;left:0;right:0;
    margin:0;
    padding:14px 24px 22px;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    background:rgba(7,9,8,0.98);
    border-bottom:1px solid var(--line-soft);
    border-left:3px solid var(--brand);
    transform:translateY(-12px);
    opacity:0;
    pointer-events:none;
    transition:opacity .18s ease-out,transform .18s ease-out;
    max-height:calc(100vh - 60px);
    overflow-y:auto;
  }
  .main-nav.is-open{opacity:1;transform:translateY(0);pointer-events:auto;}
  .nav-link{
    padding:15px 0 15px 14px;
    border-bottom:1px solid var(--line-soft);
    font-size:15.5px;
  }
  .nav-link::before{
    content:"";
    position:absolute;left:0;top:19px;bottom:19px;width:3px;
    background:var(--brand);
    opacity:0;
    transition:opacity .18s ease-out;
  }
  .nav-link.is-active::before{opacity:1;}
  .nav-link::after{display:none;}
  .anchor-bar{top:60px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;padding:56px 0 54px;}
  .hero-visual img{aspect-ratio:16/9;}
  .split{grid-template-columns:1fr;gap:28px;}
  .split-media{order:-1;}
  .cta-grid{grid-template-columns:1fr;gap:24px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .section{padding:72px 0;}
  .section--tight{padding:52px 0;}
}
@media (max-width:768px){
  .compare-grid{grid-template-columns:1fr;}
  .compare-col + .compare-col{border-left:0;border-top:1px solid var(--line-soft);}
  .point-grid{grid-template-columns:1fr;}
  .related-grid{grid-template-columns:1fr;}
  .related-card{grid-template-columns:1fr;}
  .related-card img{min-height:0;aspect-ratio:16/9;}
  .section-head h2{font-size:26px;}
  .split-body h2{font-size:25px;}
  .cta-band{padding:32px 24px;}
  .page-hero h1{font-size:34px;}
}
@media (max-width:560px){
  .container{padding:0 18px;}
  body{font-size:16px;}
  .section{padding:56px 0;}
  .section--tight{padding:44px 0;}
  .page-hero h1{font-size:30px;}
  .hero-lead{font-size:15px;}
  .hero-actions{gap:10px;}
  .hero-actions .btn{width:100%;}
  .cta-form{flex-direction:column;}
  .cta-form .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .brand-text strong{font-size:15px;}
  .point-card{padding:20px;}
  .compare-col{padding:22px 18px;}
  .timeline{padding-left:26px;}
  .timeline-item::before{left:-24px;}
}