/* roulang page: index */
:root{
  --brand-700:#0A3D52;
  --brand-600:#0E5D7A;
  --brand-500:#14799C;
  --brand-100:#E3F1F6;
  --neon-400:#B6F03C;
  --neon-500:#9FE01F;
  --amber-500:#F2A33A;
  --ink-900:#0B1621;
  --ink-800:#12222F;
  --line:#E1E8ED;
  --bg:#F5F8FA;
  --surface:#FFFFFF;
  --text-900:#0F1A22;
  --text-600:#4B5B67;
  --text-400:#8695A0;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-xl:22px;
  --sh-1:0 1px 2px rgba(11,22,33,.05);
  --sh-2:0 6px 18px rgba(11,22,33,.07);
  --sh-3:0 18px 40px rgba(11,22,33,.12);
  --sh-neon:0 0 0 1px rgba(182,240,60,.6), 0 0 18px rgba(182,240,60,.35);
  --ease:cubic-bezier(.22,.61,.36,1);
  --font:-apple-system,"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--text-600);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;color:var(--text-900);font-weight:600;letter-spacing:0;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
input,select,textarea{font-family:inherit;font-size:15px;color:var(--text-900);}
:focus-visible{outline:2px solid var(--neon-400);outline-offset:2px;border-radius:4px;}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}
.container-wide{
  width:100%;
  max-width:1280px;
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}
@media(min-width:768px){.container,.container-wide{padding-left:32px;padding-right:32px;}}
@media(min-width:1024px){.container,.container-wide{padding-left:40px;padding-right:40px;}}
@media(min-width:1536px){.container{max-width:1280px;}}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(11,22,33,.96);
  backdrop-filter:blur(6px);
  transition:box-shadow .2s var(--ease);
}
.site-header.scrolled{box-shadow:0 12px 30px rgba(11,22,33,.35);}
.site-header::after{
  content:"";
  display:block;
  height:2px;
  background:linear-gradient(90deg,var(--neon-400) 0%,rgba(182,240,60,.15) 42%,transparent 100%);
}
.nav-wrap{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  height:64px;
}
@media(min-width:1024px){.nav-wrap{height:72px;gap:32px;}}
.logo{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:17px;
  font-weight:700;
  color:#FFFFFF;
  white-space:nowrap;
}
.logo-mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:30px;
  padding:0 9px;
  border-radius:var(--r-sm);
  background:linear-gradient(135deg,rgba(182,240,60,.18),rgba(182,240,60,.05));
  border:1px solid rgba(182,240,60,.5);
  color:var(--neon-400);
  font-size:15px;
  letter-spacing:1px;
}
.logo-text{color:#FFFFFF;font-size:16px;}
@media(min-width:768px){.logo-text{font-size:17px;}}
.main-nav{display:none;}
@media(min-width:1024px){
  .main-nav{display:flex;align-items:center;gap:30px;}
}
.nav-item{
  position:relative;
  font-size:15px;
  color:rgba(255,255,255,.72);
  padding:6px 0;
  transition:color .2s var(--ease);
}
.nav-item::after{
  content:"";
  position:absolute;
  left:0;
  bottom:-4px;
  width:0;
  height:1px;
  background:var(--neon-400);
  transition:width .2s var(--ease);
}
.nav-item:hover{color:#FFFFFF;}
.nav-item:hover::after{width:100%;}
.nav-item.active{color:#FFFFFF;}
.nav-item.active::after{
  width:100%;
  height:2px;
  bottom:-6px;
  box-shadow:0 0 12px rgba(182,240,60,.85);
}
.nav-actions{display:flex;align-items:center;gap:12px;}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:0 22px;
  border-radius:var(--r-md);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  cursor:pointer;
  transition:transform .2s var(--ease),background-color .2s var(--ease),color .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease),filter .2s var(--ease);
}
.btn:hover{transform:translateY(-1px);}
.btn:active{transform:translateY(0);filter:brightness(.96);}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px;}
.btn-primary{background:var(--brand-600);color:#FFFFFF;}
.btn-primary:hover{background:var(--brand-500);box-shadow:var(--sh-2);}
.btn-neon{
  background:var(--neon-400);
  color:var(--ink-900);
  border-color:var(--neon-400);
}
.btn-neon:hover{background:#FFFFFF;border-color:var(--neon-400);box-shadow:var(--sh-neon);}
.btn-dark-neon{
  background:var(--ink-900);
  color:var(--neon-400);
  border-color:rgba(182,240,60,.65);
}
.btn-dark-neon:hover{background:var(--ink-800);box-shadow:var(--sh-neon);}
.btn-ghost{
  background:#FFFFFF;
  color:var(--brand-600);
  border-color:var(--line);
}
.btn-ghost:hover{border-color:var(--brand-600);box-shadow:var(--sh-1);}
.btn-text{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:15px;
  font-weight:600;
  color:var(--brand-600);
  transition:color .2s var(--ease);
}
.btn-text span{transition:transform .2s var(--ease);}
.btn-text:hover{color:var(--brand-500);}
.btn-text:hover span{transform:translateX(4px);}
.btn-block{width:100%;}
.menu-toggle{
  display:inline-flex;
  flex-direction:column;
  justify-content:center;
  align-items:center;
  gap:5px;
  width:44px;
  height:44px;
  border:1px solid rgba(255,255,255,.18);
  border-radius:var(--r-sm);
  background:transparent;
  cursor:pointer;
}
.menu-toggle span{display:block;width:18px;height:2px;background:#FFFFFF;transition:transform .2s var(--ease),opacity .2s var(--ease);}
@media(min-width:1024px){.menu-toggle{display:none;}}
.menu-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.menu-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.menu-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.nav-drawer{
  display:none;
  background:var(--ink-900);
  border-top:1px solid rgba(255,255,255,.08);
  padding:16px 20px 24px;
}
.nav-drawer.open{display:block;}
.nav-drawer a.drawer-item{
  display:block;
  font-size:18px;
  color:rgba(255,255,255,.82);
  padding:14px 0;
  border-bottom:1px solid rgba(255,255,255,.08);
  opacity:0;
  transform:translateY(8px);
}
.nav-drawer.open a.drawer-item{animation:drawerIn .32s var(--ease) forwards;}
.nav-drawer.open a.drawer-item:nth-child(1){animation-delay:.04s;}
.nav-drawer.open a.drawer-item:nth-child(2){animation-delay:.1s;}
.nav-drawer.open a.drawer-item:nth-child(3){animation-delay:.16s;}
@keyframes drawerIn{to{opacity:1;transform:translateY(0);}}
.nav-drawer .drawer-cta{margin-top:18px;}
.nav-drawer .drawer-foot{
  margin-top:16px;
  font-size:12px;
  color:var(--text-400);
  letter-spacing:.4px;
}
@media(min-width:1024px){.nav-drawer{display:none !important;}}

/* ---------- 通用区块 ---------- */
.section{padding-top:56px;padding-bottom:56px;}
@media(min-width:768px){.section{padding-top:72px;padding-bottom:72px;}}
@media(min-width:1024px){.section{padding-top:100px;padding-bottom:100px;}}
.section-head{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  justify-content:space-between;
  gap:16px;
  margin-bottom:32px;
}
.eyebrow{
  display:inline-block;
  font-size:13px;
  font-weight:600;
  color:var(--brand-600);
  background:var(--brand-100);
  border-radius:999px;
  padding:4px 12px;
  margin-bottom:12px;
  letter-spacing:.4px;
}
.eyebrow-dark{
  background:rgba(182,240,60,.12);
  color:var(--neon-400);
}
h2.section-title{
  font-size:24px;
  line-height:1.3;
}
@media(min-width:768px){h2.section-title{font-size:30px;}}
@media(min-width:1024px){h2.section-title{font-size:32px;}}
.section-desc{
  margin-top:12px;
  font-size:15px;
  color:var(--text-600);
  max-width:640px;
}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  padding-top:44px;
  padding-bottom:40px;
  background:
    radial-gradient(900px 320px at 88% -10%, rgba(182,240,60,.14), transparent 60%),
    var(--bg);
  scroll-margin-top:88px;
}
@media(min-width:1024px){.hero{padding-top:72px;padding-bottom:56px;}}
.hero-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:32px;
  align-items:center;
}
@media(min-width:1024px){
  .hero-grid{grid-template-columns:7fr 5fr;gap:40px;}
}
.hero-title{
  font-size:28px;
  line-height:1.25;
  font-weight:700;
  color:var(--text-900);
  margin-top:10px;
  max-width:640px;
}
@media(min-width:768px){.hero-title{font-size:38px;}}
@media(min-width:1024px){.hero-title{font-size:46px;line-height:1.2;}}
.hero-title em{
  font-style:normal;
  color:var(--brand-600);
  border-bottom:3px solid rgba(182,240,60,.75);
  padding-bottom:2px;
}
.hero-sub{
  margin-top:16px;
  font-size:17px;
  line-height:1.75;
  color:var(--text-600);
  max-width:560px;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:24px;
}
@media(max-width:480px){
  .hero-actions .btn{width:100%;}
}
.hero-points{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:0;
  margin-top:22px;
  padding-top:18px;
  border-top:1px solid var(--line);
}
.hero-points li{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:var(--text-600);
  padding:0 18px;
}
.hero-points li:first-child{padding-left:0;}
.hero-points li + li{border-left:1px solid var(--line);}
.hero-points li i{
  font-style:normal;
  color:var(--neon-500);
  font-size:11px;
}
@media(max-width:640px){
  .hero-points{gap:10px 0;}
  .hero-points li{padding:0 12px;}
}
.hero-visual{
  position:relative;
  border-radius:var(--r-xl);
  overflow:hidden;
  box-shadow:var(--sh-3);
  border:1px solid rgba(255,255,255,.6);
  min-height:220px;
  aspect-ratio:16/11;
  background:linear-gradient(135deg,var(--brand-100),var(--line));
}
.hero-visual img{
  width:100%;
  height:100%;
  object-fit:cover;
  transform:scale(1.01);
}
.hero-visual::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(200deg,rgba(11,22,33,.10) 0%,rgba(11,22,33,.42) 100%);
}
@media(max-width:1023px){
  .hero-visual{min-height:220px;max-height:260px;aspect-ratio:auto;}
}
.hero-stat{
  position:absolute;
  left:18px;
  bottom:18px;
  right:18px;
  background:#FFFFFF;
  border-radius:var(--r-md);
  box-shadow:var(--sh-3);
  padding:14px 18px;
  display:flex;
  align-items:center;
  gap:14px;
  z-index:2;
}
.hero-stat strong{
  font-size:28px;
  font-weight:700;
  color:var(--brand-700);
  line-height:1;
}
.hero-stat strong::after{
  content:"";
  display:block;
  width:24px;
  height:3px;
  background:var(--neon-500);
  border-radius:2px;
  margin-top:6px;
}
.hero-stat span{font-size:13px;line-height:1.6;color:var(--text-600);}
.hero-line{
  margin-top:40px;
  height:1px;
  background:linear-gradient(90deg,var(--neon-400) 0%,rgba(182,240,60,.2) 30%,var(--line) 70%,transparent 100%);
}
@media(min-width:1024px){.hero-line{margin-top:56px;}}

/* ---------- Bento 服务区 ---------- */
.bento{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:20px;
}
@media(min-width:768px){.bento{gap:24px;}}
.bento-main{
  grid-column:span 12;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-2);
  overflow:hidden;
  transition:transform .26s var(--ease),box-shadow .26s var(--ease);
  display:flex;
  flex-direction:column;
}
.bento-main:hover{transform:translateY(-3px);box-shadow:var(--sh-3);}
.bento-main .thumb{
  aspect-ratio:16/9;
  overflow:hidden;
  background:linear-gradient(135deg,var(--brand-100),var(--line));
}
.bento-main .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.bento-main:hover .thumb img{transform:scale(1.03);}
.bento-main .body{padding:20px;}
@media(min-width:1024px){.bento-main .body{padding:26px 28px;}}
.bento-main h3{font-size:21px;margin-bottom:10px;}
.bento-main p{font-size:15px;line-height:1.8;color:var(--text-600);}
.bento-main .btn-text{margin-top:16px;}
.bento-row{
  grid-column:span 12;
  display:flex;
  align-items:flex-start;
  gap:16px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--sh-1);
  padding:18px 20px;
  transition:transform .26s var(--ease),box-shadow .26s var(--ease),border-color .2s var(--ease);
}
.bento-row:hover{transform:translateY(-3px);box-shadow:var(--sh-3);border-color:var(--brand-100);}
.bento-ico{
  flex:0 0 42px;
  width:42px;
  height:42px;
  border-radius:var(--r-sm);
  background:var(--brand-100);
  color:var(--brand-600);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:18px;
  font-weight:700;
}
.bento-row h3{font-size:17px;margin-bottom:6px;}
.bento-row p{font-size:14px;line-height:1.75;color:var(--text-600);}
@media(min-width:1024px){
  .bento-main{grid-column:span 6;grid-row:span 3;}
  .bento-row{grid-column:span 6;}
}

/* ---------- 数据带 ---------- */
.stats{
  background:#FFFFFF;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  padding:40px 0;
  margin-top:8px;
}
@media(min-width:1024px){.stats{padding:56px 0;}}
.stats-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:28px 20px;
}
@media(min-width:1024px){.stats-grid{grid-template-columns:repeat(4,1fr);gap:24px;}}
.stat-item{padding-right:12px;}
@media(min-width:1024px){
  .stat-item + .stat-item{border-left:1px solid var(--line);padding-left:28px;}
}
.stat-num{
  font-size:34px;
  font-weight:700;
  color:var(--brand-700);
  line-height:1.1;
}
@media(min-width:1024px){.stat-num{font-size:44px;}}
.stat-num small{font-size:16px;font-weight:600;color:var(--brand-500);margin-left:2px;}
.stat-bar{width:24px;height:3px;background:var(--neon-500);border-radius:2px;margin:10px 0 12px;}
.stat-item p{font-size:14px;line-height:1.7;color:var(--text-600);}

/* ---------- 展示区 ---------- */
.showcase{position:relative;}
.showcase-tags{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-bottom:28px;
}
.tag{
  display:inline-flex;
  align-items:center;
  height:28px;
  padding:0 14px;
  border-radius:999px;
  font-size:13px;
  border:1px solid var(--line);
  background:#FFFFFF;
  color:var(--text-600);
  transition:all .2s var(--ease);
}
.tag:hover{border-color:var(--brand-500);color:var(--brand-600);}
.tag.active{background:var(--brand-600);border-color:var(--brand-600);color:#FFFFFF;}
.showcase-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:24px;
}
@media(min-width:768px){.showcase-grid{grid-template-columns:repeat(2,1fr);}}
.show-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--sh-2);
  transition:transform .26s var(--ease),box-shadow .26s var(--ease);
}
.show-card:hover{transform:translateY(-3px);box-shadow:var(--sh-3);}
.show-card .thumb{
  aspect-ratio:16/9;
  overflow:hidden;
  background:linear-gradient(135deg,var(--brand-100),var(--line));
}
.show-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.show-card:hover .thumb img{transform:scale(1.03);}
.show-card .body{padding:20px 22px 24px;}
.show-card h3{font-size:19px;margin-bottom:8px;}
.show-card p{font-size:15px;color:var(--text-600);line-height:1.75;}
.show-card .meta{
  display:flex;
  align-items:center;
  justify-content:space-between;
  margin-top:16px;
}
.badge{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 12px;
  border-radius:999px;
  font-size:12px;
  font-weight:600;
  background:var(--brand-100);
  color:var(--brand-600);
}
.meta-time{font-size:13px;color:var(--text-400);}

/* ---------- Z 字方案区 ---------- */
.plan-row{
  display:grid;
  grid-template-columns:1fr;
  gap:24px;
  padding:36px 0;
  border-bottom:1px dashed var(--line);
}
.plan-row:first-of-type{padding-top:0;}
.plan-row:last-of-type{border-bottom:none;padding-bottom:0;}
@media(min-width:1024px){
  .plan-row{grid-template-columns:5fr 6fr;gap:40px;align-items:center;padding:48px 0;}
  .plan-row.reverse .plan-media{order:2;}
}
.plan-media{
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--sh-2);
  aspect-ratio:16/9;
  background:linear-gradient(135deg,var(--brand-100),var(--line));
}
.plan-media img{width:100%;height:100%;object-fit:cover;}
.plan-index{
  display:inline-flex;
  align-items:center;
  font-size:24px;
  font-weight:700;
  color:var(--amber-500);
  letter-spacing:1px;
}
.plan-body h3{font-size:21px;margin:8px 0 12px;}
@media(min-width:1024px){.plan-body h3{font-size:23px;}}
.plan-body p{font-size:16px;line-height:1.85;color:var(--text-600);}
.plan-list{margin:16px 0 18px;display:grid;gap:10px;}
.plan-list li{
  display:flex;
  gap:10px;
  font-size:15px;
  color:var(--text-600);
}
.plan-list li::before{
  content:"";
  flex:0 0 6px;
  width:6px;
  height:6px;
  margin-top:11px;
  background:var(--neon-500);
  border-radius:2px;
}

/* ---------- 最新信息 ---------- */
.news{background:#FFFFFF;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.news-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:24px;
}
@media(min-width:768px){.news-grid{grid-template-columns:repeat(2,1fr);}}
@media(min-width:1024px){.news-grid{grid-template-columns:repeat(3,1fr);}}
.news-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform .26s var(--ease),box-shadow .26s var(--ease);
  display:flex;
}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--sh-3);}
.news-link{display:flex;flex-direction:column;width:100%;}
.news-thumb{
  aspect-ratio:16/9;
  overflow:hidden;
  background:linear-gradient(135deg,var(--brand-100),var(--line));
}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.news-card:hover .news-thumb img{transform:scale(1.03);}
.news-body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1;}
.news-title{
  font-size:18px;
  line-height:1.5;
  margin:12px 0 8px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-excerpt{
  font-size:15px;
  line-height:1.75;
  color:var(--text-600);
  display:-webkit-box;
  -webkit-line-clamp:3;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-meta{
  display:flex;
  align-items:center;
  justify-content:space-between;
  margin-top:auto;
  padding-top:16px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--text-400);
}
.news-meta .arrow{color:var(--brand-600);font-weight:700;transition:transform .2s var(--ease);}
.news-card:hover .news-meta .arrow{transform:translateX(4px);}
.news-empty{
  min-height:220px;
  border:1px dashed var(--line);
  border-radius:var(--r-lg);
  background:var(--bg);
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:14px;
  text-align:center;
  padding:24px;
}
.news-empty .empty-ico{
  width:64px;
  height:64px;
  border-radius:50%;
  border:2px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:center;
  color:var(--brand-500);
  font-size:24px;
}
.news-empty p{font-size:15px;color:var(--text-600);}

/* ---------- FAQ ---------- */
.faq-wrap{
  display:grid;
  grid-template-columns:1fr;
  gap:28px;
}
@media(min-width:1024px){.faq-wrap{grid-template-columns:4fr 8fr;gap:40px;}}
.faq-side p{font-size:14px;color:var(--text-600);line-height:1.8;margin-top:12px;}
.faq-side .btn{margin-top:20px;}
.faq-list{display:grid;gap:12px;}
.faq-item{
  background:#FFFFFF;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;
  position:relative;
  transition:box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.faq-item:hover{box-shadow:var(--sh-2);}
.faq-item::before{
  content:"";
  position:absolute;
  left:0;
  top:0;
  bottom:0;
  width:3px;
  background:var(--neon-500);
  transform:scaleY(0);
  transform-origin:top;
  transition:transform .22s var(--ease);
}
.faq-item.open::before{transform:scaleY(1);}
.faq-q{
  width:100%;
  min-height:56px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:16px 20px;
  background:transparent;
  border:none;
  text-align:left;
  font-size:17px;
  font-weight:600;
  color:var(--text-900);
  cursor:pointer;
  transition:color .2s var(--ease);
}
.faq-q:hover{color:var(--brand-600);}
.faq-sign{
  flex:0 0 22px;
  width:22px;
  height:22px;
  position:relative;
  transition:transform .22s var(--ease);
}
.faq-sign::before,.faq-sign::after{
  content:"";
  position:absolute;
  background:var(--brand-600);
  border-radius:2px;
}
.faq-sign::before{left:0;right:0;top:10px;height:2px;}
.faq-sign::after{top:0;bottom:0;left:10px;width:2px;transition:opacity .22s var(--ease);}
.faq-item.open .faq-sign{transform:rotate(180deg);}
.faq-item.open .faq-sign::after{opacity:0;}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .3s var(--ease);
}
.faq-a p{
  padding:0 20px 20px;
  font-size:16px;
  line-height:1.85;
  color:var(--text-600);
}
.faq-item.open .faq-a{max-height:420px;}

/* ---------- 联系/CTA ---------- */
.contact{
  background:var(--ink-900);
  border-radius:var(--r-xl);
  padding:32px 24px;
  display:grid;
  grid-template-columns:1fr;
  gap:32px;
  position:relative;
  overflow:hidden;
}
.contact::after{
  content:"";
  position:absolute;
  inset:0 0 auto 0;
  height:2px;
  background:linear-gradient(90deg,var(--neon-400),rgba(182,240,60,0));
}
@media(min-width:768px){.contact{padding:44px 36px;}}
@media(min-width:1024px){
  .contact{grid-template-columns:5fr 7fr;gap:48px;padding:56px 48px;}
}
.contact h2{color:#FFFFFF;font-size:24px;line-height:1.35;}
@media(min-width:1024px){.contact h2{font-size:30px;}}
.contact .contact-desc{color:rgba(255,255,255,.72);font-size:15px;line-height:1.85;margin-top:14px;}
.contact-info{margin-top:24px;display:grid;gap:12px;}
.contact-info li{
  display:flex;
  align-items:center;
  gap:12px;
  font-size:15px;
  color:rgba(255,255,255,.82);
}
.contact-info li i{
  font-style:normal;
  flex:0 0 32px;
  width:32px;
  height:32px;
  border-radius:var(--r-sm);
  background:rgba(182,240,60,.12);
  border:1px solid rgba(182,240,60,.35);
  color:var(--neon-400);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:14px;
}
.contact .btn-dark-neon{margin-top:26px;}
.form-card{
  background:#FFFFFF;
  border-radius:var(--r-lg);
  box-shadow:var(--sh-3);
  padding:24px 20px;
}
@media(min-width:768px){.form-card{padding:28px;}}
.form-grid{display:grid;gap:16px;}
@media(min-width:640px){.form-grid.two{grid-template-columns:1fr 1fr;}}
.field label{
  display:block;
  font-size:14px;
  color:var(--text-600);
  margin-bottom:8px;
  font-weight:600;
}
.field input,.field select,.field textarea{
  width:100%;
  min-height:48px;
  padding:10px 14px;
  background:#FFFFFF;
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field textarea{min-height:120px;resize:vertical;line-height:1.75;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;
  border-color:var(--brand-600);
  box-shadow:0 0 0 3px rgba(14,93,122,.15);
}
.field .hint{font-size:13px;color:var(--text-400);margin-top:6px;}
.form-card .btn-primary{margin-top:4px;}
.form-note{font-size:13px;color:var(--text-400);margin-top:12px;line-height:1.7;}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:56px;
  background:var(--ink-900);
  color:rgba(255,255,255,.7);
  position:relative;
}
@media(min-width:1024px){.site-footer{margin-top:96px;}}
.site-footer::before{
  content:"";
  position:absolute;
  top:0;
  left:0;
  right:0;
  height:2px;
  background:linear-gradient(90deg,var(--neon-400),rgba(182,240,60,.15) 55%,transparent);
}
.footer-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:32px;
  padding:44px 0 32px;
}
@media(min-width:768px){.footer-grid{grid-template-columns:1fr 1fr;gap:36px;}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding:56px 0 40px;}}
.footer-col h4{
  color:#FFFFFF;
  font-size:14px;
  font-weight:600;
  margin-bottom:16px;
  letter-spacing:.4px;
}
.footer-brand{
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:#FFFFFF;
  font-weight:700;
  font-size:17px;
  margin-bottom:14px;
}
.footer-brand .logo-mark{height:28px;font-size:14px;}
.footer-col p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);}
.footer-col ul{display:grid;gap:10px;}
.footer-col ul a{
  font-size:14px;
  color:rgba(255,255,255,.7);
  transition:color .2s var(--ease);
}
.footer-col ul a:hover{color:var(--neon-400);text-decoration:underline;text-underline-offset:3px;}
.footer-qr{
  margin-top:16px;
  width:110px;
  height:110px;
  border-radius:var(--r-md);
  border:1px solid rgba(255,255,255,.14);
  background:linear-gradient(135deg,rgba(182,240,60,.16),rgba(255,255,255,.04));
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:12px;
  color:rgba(255,255,255,.6);
  text-align:center;
  padding:8px;
  line-height:1.6;
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);
  padding:18px 0 26px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  font-size:12px;
  color:rgba(255,255,255,.5);
}
.footer-bottom span{line-height:1.7;}

/* ---------- 进场动画 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease);}
.reveal.in{opacity:1;transform:none;}
[data-anchor]{scroll-margin-top:88px;}
@media (prefers-reduced-motion: reduce){
  *{animation:none !important;transition:none !important;}
  .reveal{opacity:1 !important;transform:none !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: article */
:root{
  --brand-700:#0A3D52; --brand-600:#0E5D7A; --brand-500:#14799C; --brand-100:#E3F1F6;
  --neon-400:#B6F03C; --neon-500:#9FE01F; --amber-500:#F2A33A;
  --ink-900:#0B1621; --ink-800:#12222F; --line:#E1E8ED; --bg:#F5F8FA; --surface:#FFFFFF;
  --text-900:#0F1A22; --text-600:#4B5B67; --text-400:#8695A0;
  --r-sm:8px; --r-md:12px; --r-lg:16px; --r-xl:22px;
  --sh-1:0 1px 2px rgba(11,22,33,.05);
  --sh-2:0 6px 18px rgba(11,22,33,.07);
  --sh-3:0 18px 40px rgba(11,22,33,.12);
  --sh-neon:0 0 0 1px rgba(182,240,60,.6), 0 0 18px rgba(182,240,60,.35);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--text-600);
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC","Noto Sans SC",sans-serif;
  font-size:16px;line-height:1.85;letter-spacing:0;
}
img{max-width:100%;display:block;height:auto;background:linear-gradient(135deg,var(--brand-100),var(--line))}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
:focus-visible{outline:2px solid var(--neon-500);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:768px){.container{padding:0 32px}}
@media (min-width:1024px){.container{padding:0 40px}}
@media (min-width:1536px){.container{max-width:1280px}}
.tnum{font-variant-numeric:tabular-nums}

/* ---------- header / nav ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(11,22,33,.96);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);transition:box-shadow .2s var(--ease)}
.site-header::after{content:"";display:block;height:2px;background:linear-gradient(90deg,var(--neon-400) 0%,rgba(182,240,60,.35) 42%,rgba(182,240,60,0) 100%)}
.site-header.scrolled{box-shadow:0 10px 28px rgba(11,22,33,.35)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;height:64px}
@media (min-width:1024px){.header-inner{height:72px}}
.brand{display:flex;align-items:center;gap:6px;font-size:17px;font-weight:700;color:#fff;letter-spacing:0;white-space:nowrap}
.brand .logo-mark{color:var(--neon-400);font-weight:700}
.brand .brand-text{color:#fff}
.brand:hover .brand-text{color:var(--neon-400)}
.brand,.brand span{transition:color .2s var(--ease)}
.main-nav{display:none;align-items:center;gap:30px}
@media (min-width:1024px){.main-nav{display:flex}}
.nav-item{position:relative;padding:6px 0;font-size:15px;color:rgba(255,255,255,.72);transition:color .2s var(--ease)}
.nav-item::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:1px;background:var(--neon-400);transition:width .2s var(--ease)}
.nav-item:hover{color:#fff}
.nav-item:hover::after{width:100%}
.nav-item.active{color:#fff}
.nav-item.active::after{width:100%;height:2px;background:var(--neon-400);box-shadow:0 6px 14px rgba(182,240,60,.45)}
.header-actions{display:flex;align-items:center;gap:12px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 22px;border:1px solid transparent;border-radius:var(--r-md);font-size:15px;font-weight:600;cursor:pointer;transition:transform .2s var(--ease),background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease),filter .2s var(--ease)}
.btn:hover{transform:translateY(-1px)}
.btn:active{transform:translateY(0);filter:brightness(.96)}
.btn:disabled{opacity:.45;cursor:not-allowed;transform:none}
.btn-neon{background:var(--neon-400);color:var(--ink-900);box-shadow:0 0 0 1px rgba(182,240,60,.5),0 0 16px rgba(182,240,60,.28)}
.btn-neon:hover{background:#fff;color:var(--ink-900);box-shadow:0 0 0 1px var(--neon-500),0 0 18px rgba(182,240,60,.4)}
.btn-primary{background:var(--brand-600);color:#fff}
.btn-primary:hover{background:var(--brand-500)}
.btn-outline{background:#fff;border-color:var(--line);color:var(--brand-600)}
.btn-outline:hover{border-color:var(--brand-600);box-shadow:var(--sh-2)}
.btn-dark{background:var(--ink-900);color:var(--neon-400);box-shadow:inset 0 0 0 1px rgba(182,240,60,.55)}
.btn-dark:hover{color:var(--neon-500);box-shadow:inset 0 0 0 1px var(--neon-400),0 0 18px rgba(182,240,60,.28)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.header-cta{display:none}
@media (min-width:1024px){.header-cta{display:inline-flex}}
.nav-toggle{display:flex;align-items:center;justify-content:center;width:44px;height:44px;border:1px solid rgba(255,255,255,.18);border-radius:var(--r-md);background:transparent;cursor:pointer}
@media (min-width:1024px){.nav-toggle{display:none}}
.nav-toggle span{display:block;width:18px;height:2px;background:#fff;position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:#fff;transition:transform .2s var(--ease)}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-drawer{position:fixed;inset:66px 0 0 0;z-index:55;background:var(--ink-900);padding:24px 20px 32px;display:none;flex-direction:column;gap:6px;overflow-y:auto}
.nav-drawer.open{display:flex}
.nav-drawer a.drawer-item{font-size:18px;color:rgba(255,255,255,.82);padding:14px 4px;border-bottom:1px solid rgba(255,255,255,.08);opacity:0;transform:translateY(8px);animation:drawerIn .3s var(--ease) forwards}
.nav-drawer a.drawer-item:nth-child(2){animation-delay:.04s}
.nav-drawer a.drawer-item:nth-child(3){animation-delay:.08s}
.nav-drawer a.drawer-item.active{color:var(--neon-400)}
@keyframes drawerIn{to{opacity:1;transform:translateY(0)}}
.drawer-foot{margin-top:auto;padding-top:24px;display:flex;flex-direction:column;gap:14px}
.drawer-foot .drawer-note{font-size:12px;color:rgba(255,255,255,.45)}

/* ---------- article head ---------- */
.article-shell{padding:28px 0 0}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-400);white-space:nowrap;overflow-x:auto;scrollbar-width:none}
.breadcrumb::-webkit-scrollbar{display:none}
.breadcrumb a:hover{color:var(--brand-600)}
.breadcrumb .sep{color:#C3CDD6}
.breadcrumb .current{color:var(--text-900);max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-title{max-width:860px;margin:14px 0 0;font-size:27px;line-height:1.35;font-weight:700;color:var(--text-900);letter-spacing:0}
@media (min-width:768px){.article-title{font-size:32px}}
@media (min-width:1024px){.article-title{font-size:36px}}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:18px;font-size:13px;color:var(--text-400)}
.meta-row .dot{width:1px;height:12px;background:var(--line)}
.badge{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;background:var(--brand-100);color:var(--brand-600);font-size:12.5px;font-weight:600}
.badge-amber{background:rgba(242,163,58,.14);color:#B9711C}
.rule{height:1px;background:var(--line);margin:24px 0 0}
.cover-slot{max-width:860px;margin:28px 0;aspect-ratio:16/9;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-2)}
.cover-slot img{width:100%;height:100%;object-fit:cover}

/* ---------- layout ---------- */
.article-layout{display:grid;grid-template-columns:1fr;gap:40px;padding-bottom:72px}
@media (min-width:1024px){.article-layout{grid-template-columns:minmax(0,860px) 300px;align-items:start}}

/* ---------- article body typography ---------- */
.article-body{min-width:0;font-size:17px;line-height:1.9;color:#22303A}
.article-body p{margin:0 0 18px}
.article-body h2{position:relative;margin:36px 0 14px;padding-left:14px;font-size:22px;line-height:1.4;font-weight:600;color:var(--text-900)}
.article-body h2::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:4px;height:20px;border-radius:2px;background:var(--neon-500)}
.article-body h3{margin:28px 0 12px;font-size:19px;line-height:1.45;font-weight:600;color:var(--text-900)}
.article-body h4{margin:22px 0 10px;font-size:17px;font-weight:600;color:var(--text-900)}
.article-body ul,.article-body ol{margin:0 0 18px;padding-left:24px}
.article-body ul{list-style:none;padding-left:22px}
.article-body ul>li{position:relative;margin-bottom:10px}
.article-body ul>li::before{content:"";position:absolute;left:-16px;top:12px;width:7px;height:7px;border-radius:2px;background:var(--neon-500)}
.article-body ol>li{margin-bottom:10px}
.article-body ol>li::marker{color:var(--amber-500);font-weight:700}
.article-body blockquote{margin:22px 0;padding:20px 24px;background:var(--brand-100);border-left:4px solid var(--brand-600);border-radius:0 var(--r-md) var(--r-md) 0;font-size:16px;line-height:1.85;color:var(--text-600)}
.article-body a{color:var(--brand-600);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--brand-500)}
.article-body img{border-radius:var(--r-md);margin:22px auto;border:1px solid var(--line)}
.article-body figure{margin:24px 0}
.article-body figcaption{margin-top:12px;text-align:center;font-size:13px;color:var(--text-400)}
.article-body table{display:block;width:100%;margin:22px 0;border-collapse:collapse;font-size:15px;overflow-x:auto}
.article-body th{background:var(--brand-100);color:var(--brand-700);font-weight:600}
.article-body th,.article-body td{padding:12px 16px;border-bottom:1px solid var(--line);text-align:left;white-space:nowrap}
.article-body pre{margin:22px 0;padding:18px 20px;border-radius:var(--r-md);background:var(--ink-900);color:var(--neon-400);font-size:14px;line-height:1.7;overflow-x:auto}
.article-body code{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:.92em}
.article-body :is(h2,h3,h4){scroll-margin-top:88px}
.body-empty{margin:0 0 32px;padding:56px 24px;border:1px dashed var(--line);border-radius:var(--r-lg);background:#fff;text-align:center}
.body-empty .icon{width:64px;height:64px;margin:0 auto 16px;border:2px solid var(--line);border-radius:var(--r-md);position:relative}
.body-empty .icon::after{content:"";position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:26px;height:2px;background:var(--text-400);box-shadow:0 -8px 0 var(--text-400),0 8px 0 var(--text-400)}
.body-empty p{font-size:15px;color:var(--text-600);margin-bottom:18px}

/* ---------- back + related ---------- */
.back-row{margin:40px 0 8px}
.link-arrow{display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:600;color:var(--brand-600)}
.link-arrow .arw{transition:transform .2s var(--ease)}
.link-arrow:hover .arw{transform:translateX(4px)}
.related-band{border-top:1px solid var(--line);background:#fff;padding:56px 0 64px}
.band-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:24px}
.band-head h2{font-size:24px;font-weight:600;color:var(--text-900);line-height:1.3}
.band-head p{font-size:14px;color:var(--text-400);margin-top:6px}
.related-grid{display:grid;grid-template-columns:1fr;gap:24px}
@media (min-width:640px){.related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){.related-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
.entry-card{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);overflow:hidden;transition:transform .26s var(--ease),box-shadow .26s var(--ease)}
.entry-card:hover{transform:translateY(-3px);box-shadow:var(--sh-3)}
.entry-thumb{aspect-ratio:16/9;overflow:hidden;background:linear-gradient(135deg,var(--brand-100),var(--line))}
.entry-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.entry-card:hover .entry-thumb img{transform:scale(1.03)}
.entry-body{padding:20px;display:flex;flex-direction:column;gap:10px}
.entry-body h3{font-size:18px;font-weight:600;color:var(--text-900);line-height:1.5}
.entry-body p{font-size:15px;line-height:1.75;color:var(--text-600)}
.entry-foot{display:flex;align-items:center;justify-content:space-between;padding:0 20px 20px;font-size:13px;color:var(--text-400)}

/* ---------- sidebar ---------- */
.article-side{display:flex;flex-direction:column;gap:20px}
@media (min-width:1024px){.article-side{position:sticky;top:96px}}
.side-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);padding:22px}
.side-card h3{font-size:15px;font-weight:600;color:var(--text-900);padding-bottom:12px;margin-bottom:12px;border-bottom:1px solid var(--line)}
.side-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:4px}
.side-list a{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:9px 0;font-size:14.5px;color:var(--text-600);transition:color .2s var(--ease)}
.side-list a::after{content:"›";color:#C3CDD6;transition:transform .2s var(--ease),color .2s var(--ease)}
.side-list a:hover{color:var(--brand-600)}
.side-list a:hover::after{transform:translateX(3px);color:var(--brand-600)}
.side-note{font-size:14px;line-height:1.8;color:var(--text-600)}
.side-tags{display:flex;flex-wrap:wrap;gap:8px}
.tag{display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:999px;border:1px solid var(--line);background:#fff;font-size:12.5px;color:var(--text-600)}
.stat-line{display:flex;align-items:baseline;gap:10px;font-size:13px;color:var(--text-400);margin-top:10px}
.stat-line b{font-size:26px;font-weight:700;color:var(--brand-600);font-variant-numeric:tabular-nums}

/* ---------- footer ---------- */
.site-footer{background:var(--ink-900);color:rgba(255,255,255,.7);padding:0 0 28px}
.site-footer::before{content:"";display:block;height:2px;background:linear-gradient(90deg,var(--neon-400) 0%,rgba(182,240,60,.25) 55%,rgba(182,240,60,0) 100%);margin-bottom:56px}
.footer-grid{display:grid;grid-template-columns:1fr;gap:36px}
@media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px}}
.footer-brand{display:flex;align-items:center;gap:6px;font-size:17px;font-weight:700;color:#fff;margin-bottom:14px}
.footer-brand .logo-mark{color:var(--neon-400)}
.footer-col p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);max-width:340px}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-col ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px}
.footer-col ul a{font-size:14px;color:rgba(255,255,255,.7);transition:color .2s var(--ease)}
.footer-col ul a:hover{color:var(--neon-400)}
.footer-qr{margin-top:18px;width:112px;height:112px;border-radius:var(--r-md);border:1px dashed rgba(255,255,255,.24);display:flex;align-items:center;justify-content:center;text-align:center;font-size:12px;line-height:1.6;color:rgba(255,255,255,.5)}
.footer-bottom{margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.08);display:flex;flex-wrap:wrap;gap:8px 24px;justify-content:space-between;font-size:12.5px;color:rgba(255,255,255,.5)}

/* ---------- motion ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* roulang page: category1 */
:root{
    --brand-700:#0A3D52;
    --brand-600:#0E5D7A;
    --brand-500:#14799C;
    --brand-100:#E3F1F6;
    --neon-400:#B6F03C;
    --neon-500:#9FE01F;
    --amber-500:#F2A33A;
    --ink-900:#0B1621;
    --ink-800:#12222F;
    --line:#E1E8ED;
    --bg:#F5F8FA;
    --surface:#FFFFFF;
    --text-900:#0F1A22;
    --text-600:#4B5B67;
    --text-400:#8695A0;
    --r-sm:8px;
    --r-md:12px;
    --r-lg:16px;
    --r-xl:22px;
    --sh-1:0 1px 2px rgba(11,22,33,.05);
    --sh-2:0 6px 18px rgba(11,22,33,.07);
    --sh-3:0 18px 40px rgba(11,22,33,.12);
    --sh-neon:0 0 0 1px rgba(182,240,60,.6), 0 0 18px rgba(182,240,60,.35);
    --ease:cubic-bezier(.22,.61,.36,1);
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    background:var(--bg);
    color:var(--text-900);
    font-family:-apple-system,"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC","Noto Sans SC",sans-serif;
    font-size:16px;
    line-height:1.85;
    font-variant-numeric:tabular-nums;
  }
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;}
  button{font-family:inherit;}
  h1,h2,h3,h4,p,ul,ol{margin:0;}
  ul,ol{padding:0;list-style:none;}
  :focus-visible{outline:2px solid var(--neon-400);outline-offset:2px;border-radius:4px;}

  .container{
    width:100%;
    max-width:1200px;
    margin:0 auto;
    padding-left:20px;
    padding-right:20px;
  }
  @media (min-width:768px){
    .container{padding-left:32px;padding-right:32px;}
  }
  @media (min-width:1024px){
    .container{padding-left:40px;padding-right:40px;}
  }
  @media (min-width:1536px){
    .container{max-width:1280px;}
  }

  /* ---------- 顶部导航 ---------- */
  .site-header{
    position:sticky;
    top:0;
    z-index:80;
    background:rgba(11,22,33,.96);
    backdrop-filter:saturate(140%) blur(6px);
    -webkit-backdrop-filter:saturate(140%) blur(6px);
    transition:box-shadow .2s var(--ease);
  }
  .site-header::after{
    content:"";
    display:block;
    height:2px;
    background:linear-gradient(90deg,var(--neon-400) 0%,rgba(182,240,60,.28) 34%,rgba(11,22,33,0) 78%);
  }
  .site-header.scrolled{box-shadow:0 10px 30px rgba(11,22,33,.35);}
  .header-inner{
    height:64px;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
  }
  @media (min-width:1024px){
    .header-inner{height:72px;gap:28px;}
  }
  .brand{
    display:flex;
    align-items:center;
    gap:8px;
    flex-shrink:0;
    color:#fff;
    font-weight:700;
    font-size:17px;
    letter-spacing:0;
    line-height:1.2;
  }
  .logo-mark{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    height:32px;
    padding:0 9px;
    border-radius:var(--r-sm);
    background:linear-gradient(135deg,var(--neon-500),var(--neon-400));
    color:var(--ink-900);
    font-size:15px;
    font-weight:700;
    box-shadow:0 0 16px rgba(182,240,60,.28);
  }
  .brand-text{color:#fff;font-size:15px;font-weight:600;}
  @media (min-width:768px){
    .brand-text{font-size:16px;}
  }
  .main-nav{display:none;}
  @media (min-width:1024px){
    .main-nav{
      display:flex;
      align-items:center;
      gap:30px;
      margin-left:auto;
    }
  }
  .nav-item{
    position:relative;
    padding:6px 0;
    font-size:15px;
    line-height:1.4;
    color:rgba(255,255,255,.72);
    white-space:nowrap;
    transition:color .2s var(--ease);
  }
  .nav-item::after{
    content:"";
    position:absolute;
    left:0;right:0;bottom:-8px;
    height:1px;
    background:var(--neon-400);
    transform:scaleX(0);
    transform-origin:left center;
    transition:transform .2s var(--ease);
  }
  .nav-item:hover{color:#fff;}
  .nav-item:hover::after{transform:scaleX(1);}
  .nav-item.active{color:#fff;}
  .nav-item.active::after{
    transform:scaleX(1);
    height:2px;
    box-shadow:0 2px 14px rgba(182,240,60,.65);
  }
  .header-actions{
    display:flex;
    align-items:center;
    gap:10px;
    margin-left:auto;
  }
  @media (min-width:1024px){
    .header-actions{margin-left:0;}
  }
  .menu-toggle{
    width:44px;height:44px;
    display:inline-flex;
    align-items:center;
    justify-content:center;
    flex-direction:column;
    gap:5px;
    border:1px solid rgba(255,255,255,.14);
    border-radius:var(--r-md);
    background:rgba(255,255,255,.04);
    cursor:pointer;
    transition:border-color .2s var(--ease),background .2s var(--ease);
  }
  .menu-toggle span{
    display:block;
    width:18px;height:2px;
    border-radius:2px;
    background:rgba(255,255,255,.85);
    transition:transform .2s var(--ease),opacity .2s var(--ease);
  }
  .menu-toggle:hover{border-color:rgba(182,240,60,.6);}
  .menu-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
  .menu-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
  .menu-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
  @media (min-width:1024px){
    .menu-toggle{display:none;}
  }
  .mobile-drawer{
    position:fixed;
    inset:66px 0 0 0;
    background:rgba(11,22,33,.985);
    padding:24px 20px 32px;
    display:none;
    flex-direction:column;
    gap:4px;
    overflow-y:auto;
    z-index:79;
  }
  .mobile-drawer.open{display:flex;}
  .mobile-drawer .drawer-nav{display:flex;flex-direction:column;gap:2px;}
  .drawer-link{
    display:block;
    padding:14px 4px;
    font-size:18px;
    color:rgba(255,255,255,.8);
    border-bottom:1px solid rgba(255,255,255,.08);
    opacity:0;
    transform:translateY(8px);
    animation:drawerIn .32s var(--ease) forwards;
  }
  .drawer-link.active{color:var(--neon-400);}
  @keyframes drawerIn{to{opacity:1;transform:translateY(0);}}
  .drawer-foot{margin-top:24px;display:flex;flex-direction:column;gap:14px;}
  .drawer-meta{font-size:12px;color:rgba(255,255,255,.45);line-height:1.7;}

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    min-height:44px;
    padding:0 22px;
    border-radius:var(--r-md);
    border:1px solid transparent;
    font-size:15px;
    font-weight:600;
    line-height:1;
    cursor:pointer;
    text-align:center;
    transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
  }
  .btn:hover{transform:translateY(-1px);}
  .btn:active{transform:translateY(0);filter:brightness(.96);}
  .btn:disabled{opacity:.45;cursor:not-allowed;transform:none;}
  .btn-sm{min-height:40px;padding:0 18px;font-size:14px;}
  .btn-primary{background:var(--brand-600);color:#fff;box-shadow:var(--sh-1);}
  .btn-primary:hover{background:var(--brand-500);box-shadow:var(--sh-2);}
  .btn-neon{
    background:var(--neon-400);
    color:var(--ink-900);
    border-color:var(--neon-400);
    font-weight:700;
  }
  .btn-neon:hover{background:#fff;border-color:var(--neon-400);color:var(--ink-900);box-shadow:var(--sh-neon);}
  .btn-dark-neon{
    background:var(--ink-900);
    color:var(--neon-400);
    border:1px solid rgba(182,240,60,.55);
  }
  .btn-dark-neon:hover{box-shadow:var(--sh-neon);color:var(--neon-400);}
  .btn-outline{
    background:var(--surface);
    color:var(--brand-600);
    border-color:var(--line);
    box-shadow:var(--sh-1);
  }
  .btn-outline:hover{border-color:var(--brand-500);box-shadow:var(--sh-2);}
  .btn-arrow{
    display:inline-flex;
    align-items:center;
    gap:6px;
    min-height:32px;
    padding:0;
    background:none;
    border:none;
    color:var(--brand-600);
    font-size:15px;
    font-weight:600;
    cursor:pointer;
    transition:color .2s var(--ease);
  }
  .btn-arrow .arrow{transition:transform .2s var(--ease);}
  .btn-arrow:hover{color:var(--brand-500);}
  .btn-arrow:hover .arrow{transform:translateX(4px);}
  .btn-block{width:100%;}
  @media (max-width:519px){
    .hero-actions .btn,
    .cta-band .btn{width:100%;}
  }

  /* ---------- 徽章 / 面包屑 ---------- */
  .badge{
    display:inline-flex;
    align-items:center;
    gap:6px;
    height:27px;
    padding:0 12px;
    border-radius:999px;
    font-size:12.5px;
    font-weight:600;
    line-height:1;
  }
  .badge-brand{background:var(--brand-100);color:var(--brand-600);}
  .badge-neon{background:rgba(182,240,60,.18);color:#5c7d0a;border:1px solid rgba(182,240,60,.55);}
  .badge-dark{background:rgba(255,255,255,.1);color:#fff;border:1px solid rgba(255,255,255,.18);}
  .breadcrumb{
    display:flex;
    align-items:center;
    gap:8px;
    font-size:13px;
    color:var(--text-400);
    white-space:nowrap;
    overflow-x:auto;
    padding-bottom:2px;
    margin-bottom:12px;
  }
  .breadcrumb a{color:var(--text-400);transition:color .2s var(--ease);}
  .breadcrumb a:hover{color:var(--brand-600);}
  .breadcrumb .sep{color:#C3CDD5;}
  .breadcrumb .current{color:var(--text-900);}

  /* ---------- 分类 Hero ---------- */
  .cat-hero{
    position:relative;
    background:var(--bg);
    padding:28px 0 44px;
    overflow:hidden;
    scroll-margin-top:88px;
  }
  .cat-hero::before{
    content:"";
    position:absolute;
    top:-120px;right:-140px;
    width:420px;height:420px;
    border-radius:50%;
    border:1px solid rgba(182,240,60,.16);
    background:radial-gradient(circle at 40% 40%,rgba(182,240,60,.10),rgba(182,240,60,0) 68%);
    pointer-events:none;
  }
  .cat-hero-grid{
    display:grid;
    grid-template-columns:1fr;
    gap:28px;
    align-items:center;
  }
  @media (min-width:1024px){
    .cat-hero-grid{grid-template-columns:8fr 4fr;gap:32px;}
  }
  .cat-hero h1{
    font-size:28px;
    line-height:1.3;
    font-weight:700;
    letter-spacing:0;
    margin-top:14px;
    color:var(--text-900);
  }
  @media (min-width:768px){
    .cat-hero h1{font-size:34px;}
  }
  @media (min-width:1024px){
    .cat-hero h1{font-size:40px;line-height:1.22;}
  }
  .cat-hero-sub{
    margin-top:14px;
    font-size:15px;
    line-height:1.8;
    color:var(--text-600);
    max-width:640px;
  }
  .hero-actions{
    display:flex;
    flex-wrap:wrap;
    gap:12px;
    margin-top:24px;
  }
  .hero-points{
    display:flex;
    flex-wrap:wrap;
    gap:10px 22px;
    margin-top:22px;
    padding-top:18px;
    border-top:1px solid var(--line);
  }
  .hero-points li{
    display:flex;
    align-items:center;
    gap:8px;
    font-size:13.5px;
    color:var(--text-600);
  }
  .hero-points li::before{
    content:"";
    width:6px;height:6px;
    border-radius:2px;
    background:var(--neon-500);
    flex-shrink:0;
  }
  .cat-hero-media{
    position:relative;
    border-radius:var(--r-xl);
    overflow:hidden;
    box-shadow:var(--sh-3);
    aspect-ratio:16/10;
    background:linear-gradient(135deg,var(--brand-100),var(--line));
    display:none;
  }
  @media (min-width:768px){
    .cat-hero-media{display:block;}
  }
  .cat-hero-media img{
    width:100%;height:100%;
    object-fit:cover;
    transition:transform .6s var(--ease);
  }
  .cat-hero-media:hover img{transform:scale(1.03);}
  .cat-hero-media::after{
    content:"";
    position:absolute;
    inset:0;
    background:linear-gradient(200deg,rgba(11,22,33,.05),rgba(11,22,33,.42));
    pointer-events:none;
  }
  .hero-float{
    position:absolute;
    left:18px;bottom:18px;
    z-index:2;
    background:var(--surface);
    border-radius:var(--r-md);
    padding:12px 16px;
    box-shadow:var(--sh-3);
    min-width:150px;
  }
  .hero-float strong{
    display:block;
    font-size:24px;
    font-weight:700;
    line-height:1.2;
    color:var(--brand-700);
  }
  .hero-float span{
    display:block;
    font-size:12.5px;
    color:var(--text-400);
    line-height:1.6;
    margin-top:2px;
  }

  /* ---------- 通用板块 ---------- */
  .section{padding:56px 0;scroll-margin-top:88px;}
  @media (min-width:768px){
    .section{padding:72px 0;}
  }
  @media (min-width:1024px){
    .section{padding:96px 0;}
  }
  .section-tight{padding-top:0;}
  .section-head{
    display:flex;
    flex-direction:column;
    gap:10px;
    margin-bottom:32px;
  }
  @media (min-width:768px){
    .section-head{
      flex-direction:row;
      align-items:flex-end;
      justify-content:space-between;
      gap:24px;
    }
  }
  .section-title{
    font-size:24px;
    font-weight:600;
    line-height:1.35;
    color:var(--text-900);
  }
  @media (min-width:768px){
    .section-title{font-size:30px;}
  }
  @media (min-width:1024px){
    .section-title{font-size:32px;}
  }
  .section-desc{
    font-size:14px;
    color:var(--text-600);
    line-height:1.8;
    margin-top:8px;
    max-width:720px;
  }

  /* ---------- 能力条带 ---------- */
  .strip{
    background:var(--surface);
    border-top:1px solid var(--line);
    border-bottom:1px solid var(--line);
    padding:32px 0;
  }
  .strip-grid{
    display:grid;
    grid-template-columns:1fr;
    gap:22px;
  }
  @media (min-width:640px){
    .strip-grid{grid-template-columns:1fr 1fr;}
  }
  @media (min-width:1024px){
    .strip-grid{grid-template-columns:repeat(4,1fr);gap:0;}
  }
  .strip-item{
    display:flex;
    gap:14px;
    align-items:flex-start;
  }
  @media (min-width:1024px){
    .strip-item{padding:0 24px;}
    .strip-item + .strip-item{border-left:1px solid var(--line);}
    .strip-item:first-child{padding-left:0;}
    .strip-item:last-child{padding-right:0;}
  }
  .strip-icon{
    width:40px;height:40px;
    flex-shrink:0;
    border-radius:10px;
    background:var(--brand-100);
    color:var(--brand-600);
    display:flex;
    align-items:center;
    justify-content:center;
    font-size:15px;
    font-weight:700;
  }
  .strip-item h3{
    font-size:16px;
    font-weight:600;
    color:var(--text-900);
    line-height:1.5;
  }
  .strip-item p{
    margin-top:4px;
    font-size:13.5px;
    line-height:1.75;
    color:var(--text-600);
  }

  /* ---------- 锚点目录 + 长文 ---------- */
  .toc-layout{
    display:grid;
    grid-template-columns:1fr;
    gap:32px;
  }
  @media (min-width:1024px){
    .toc-layout{grid-template-columns:3fr 9fr;gap:48px;}
  }
  .toc{
    align-self:start;
  }
  @media (min-width:1024px){
    .toc{position:sticky;top:104px;}
  }
  .toc-title{
    font-size:13px;
    font-weight:600;
    color:var(--text-400);
    letter-spacing:.06em;
    margin-bottom:12px;
  }
  .toc-list{
    display:flex;
    flex-direction:column;
    gap:2px;
    border-left:1px solid var(--line);
  }
  .toc-link{
    display:block;
    padding:10px 0 10px 16px;
    font-size:14.5px;
    color:var(--text-600);
    border-left:2px solid transparent;
    margin-left:-1px;
    transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
  }
  .toc-link:hover{color:var(--brand-600);background:rgba(227,241,246,.5);}
  .toc-link.active{
    color:var(--brand-600);
    font-weight:600;
    border-left-color:var(--neon-500);
    background:rgba(227,241,246,.6);
  }
  .content-block + .content-block{
    margin-top:48px;
    padding-top:44px;
    border-top:1px dashed var(--line);
  }
  @media (min-width:768px){
    .content-block + .content-block{margin-top:56px;}
  }
  .content-block h2{
    position:relative;
    font-size:22px;
    font-weight:600;
    line-height:1.4;
    color:var(--text-900);
    padding-left:14px;
    margin-bottom:16px;
  }
  .content-block h2::before{
    content:"";
    position:absolute;
    left:0;top:6px;
    width:4px;height:20px;
    border-radius:2px;
    background:var(--neon-500);
  }
  .content-block p{
    font-size:16px;
    line-height:1.9;
    color:var(--text-600);
  }
  .content-block p + p{margin-top:14px;}
  .dot-list{
    margin-top:16px;
    display:flex;
    flex-direction:column;
    gap:10px;
  }
  .dot-list li{
    position:relative;
    padding-left:18px;
    font-size:15px;
    line-height:1.8;
    color:var(--text-600);
  }
  .dot-list li::before{
    content:"";
    position:absolute;
    left:0;top:11px;
    width:7px;height:7px;
    border-radius:2px;
    background:var(--neon-500);
  }
  .inline-quote{
    margin-top:18px;
    padding:18px 22px;
    border-left:4px solid var(--brand-600);
    border-radius:0 var(--r-md) var(--r-md) 0;
    background:var(--brand-100);
    color:var(--brand-700);
    font-size:15px;
    line-height:1.85;
  }

  /* ---------- 条目清单式列表 ---------- */
  .entry-list{
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--r-lg);
    overflow:hidden;
    box-shadow:var(--sh-1);
  }
  .entry-row{
    display:flex;
    align-items:center;
    gap:16px;
    min-height:76px;
    padding:18px 20px;
    border-bottom:1px solid var(--line);
    transition:background .2s var(--ease);
  }
  .entry-row:last-child{border-bottom:none;}
  .entry-row:hover{background:var(--brand-100);}
  .entry-row:hover .entry-arrow{transform:translateX(4px);color:var(--brand-600);}
  .entry-num{
    flex-shrink:0;
    width:34px;
    font-size:24px;
    font-weight:700;
    line-height:1;
    color:var(--amber-500);
    font-variant-numeric:tabular-nums;
  }
  .entry-main{flex:1;min-width:0;}
  .entry-title{
    font-size:17px;
    font-weight:600;
    color:var(--text-900);
    line-height:1.5;
  }
  .entry-desc{
    margin-top:4px;
    font-size:14px;
    color:var(--text-600);
    line-height:1.7;
  }
  .entry-arrow{
    flex-shrink:0;
    color:#B4C0C8;
    font-size:16px;
    transition:transform .2s var(--ease),color .2s var(--ease);
  }

  /* ---------- 数据条 ---------- */
  .stats-band{
    background:var(--ink-900);
    border-radius:var(--r-lg);
    padding:28px 24px;
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:24px 12px;
  }
  @media (min-width:1024px){
    .stats-band{grid-template-columns:repeat(4,1fr);gap:0;padding:34px 32px;}
  }
  .stat{
    text-align:left;
  }
  @media (min-width:1024px){
    .stat{padding:0 26px;}
    .stat + .stat{border-left:1px solid rgba(255,255,255,.12);}
    .stat:first-child{padding-left:0;}
    .stat:last-child{padding-right:0;}
  }
  .stat-num{
    font-size:34px;
    font-weight:700;
    line-height:1.15;
    color:var(--neon-400);
    font-variant-numeric:tabular-nums;
  }
  @media (min-width:768px){
    .stat-num{font-size:40px;}
  }
  .stat-label{
    margin-top:6px;
    font-size:13.5px;
    line-height:1.7;
    color:rgba(255,255,255,.68);
  }

  /* ---------- 流程 ---------- */
  .step-grid{
    display:grid;
    grid-template-columns:1fr;
    gap:16px;
  }
  @media (min-width:640px){
    .step-grid{grid-template-columns:1fr 1fr;}
  }
  @media (min-width:1024px){
    .step-grid{grid-template-columns:repeat(4,1fr);gap:24px;}
  }
  .step-card{
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--r-lg);
    padding:22px 20px;
    box-shadow:var(--sh-1);
    transition:transform .26s var(--ease),box-shadow .26s var(--ease);
  }
  .step-card:hover{transform:translateY(-3px);box-shadow:var(--sh-3);}
  .step-num{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    width:34px;height:34px;
    border-radius:10px;
    background:var(--brand-100);
    color:var(--amber-500);
    font-size:15px;
    font-weight:700;
    margin-bottom:14px;
  }
  .step-card h3{
    font-size:17px;
    font-weight:600;
    color:var(--text-900);
    line-height:1.5;
  }
  .step-card p{
    margin-top:8px;
    font-size:14px;
    line-height:1.8;
    color:var(--text-600);
  }

  /* ---------- FAQ ---------- */
  .faq-layout{
    display:grid;
    grid-template-columns:1fr;
    gap:28px;
  }
  @media (min-width:1024px){
    .faq-layout{grid-template-columns:4fr 8fr;gap:56px;}
  }
  .faq-side h2{
    font-size:24px;
    font-weight:600;
    line-height:1.35;
    color:var(--text-900);
  }
  @media (min-width:768px){
    .faq-side h2{font-size:28px;}
  }
  .faq-side p{
    margin-top:12px;
    font-size:14px;
    line-height:1.8;
    color:var(--text-600);
  }
  .faq-side .btn{margin-top:20px;}
  .faq-list{display:flex;flex-direction:column;gap:12px;}
  .faq-item{
    position:relative;
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--r-md);
    box-shadow:var(--sh-1);
    overflow:hidden;
    transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
  }
  .faq-item::before{
    content:"";
    position:absolute;
    left:0;top:0;bottom:0;
    width:3px;
    background:var(--neon-500);
    transform:scaleY(0);
    transform-origin:top center;
    transition:transform .22s var(--ease);
  }
  .faq-item.open{border-color:rgba(14,93,122,.28);box-shadow:var(--sh-2);}
  .faq-item.open::before{transform:scaleY(1);}
  .faq-q{
    width:100%;
    min-height:56px;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
    padding:16px 20px;
    background:none;
    border:none;
    text-align:left;
    font-size:17px;
    font-weight:600;
    color:var(--text-900);
    cursor:pointer;
  }
  .faq-icon{
    flex-shrink:0;
    width:22px;height:22px;
    display:flex;
    align-items:center;
    justify-content:center;
    border-radius:6px;
    background:var(--brand-100);
    color:var(--brand-600);
    font-size:16px;
    line-height:1;
    transition:transform .22s var(--ease);
  }
  .faq-item.open .faq-icon{transform:rotate(45deg);}
  .faq-a{
    max-height:0;
    overflow:hidden;
    transition:max-height .28s var(--ease);
  }
  .faq-a p{
    padding:0 20px 20px 23px;
    font-size:16px;
    line-height:1.85;
    color:var(--text-600);
  }

  /* ---------- 底部 CTA 带 ---------- */
  .cta-band{
    display:flex;
    flex-direction:column;
    gap:20px;
    padding:26px 24px;
    border-radius:var(--r-lg);
    background:var(--surface);
    border:1px solid rgba(182,240,60,.6);
    box-shadow:0 0 0 1px rgba(182,240,60,.18),var(--sh-2);
  }
  @media (min-width:768px){
    .cta-band{
      flex-direction:row;
      align-items:center;
      justify-content:space-between;
      padding:28px 32px;
      gap:32px;
    }
  }
  .cta-band h2{
    font-size:20px;
    font-weight:600;
    line-height:1.4;
    color:var(--text-900);
  }
  @media (min-width:768px){
    .cta-band h2{font-size:22px;}
  }
  .cta-band p{
    margin-top:6px;
    font-size:14px;
    line-height:1.8;
    color:var(--text-600);
  }
  .cta-band .cta-actions{display:flex;flex-wrap:wrap;gap:12px;flex-shrink:0;}

  /* ---------- 页脚 ---------- */
  .site-footer{
    margin-top:56px;
    background:var(--ink-900);
    color:rgba(255,255,255,.7);
  }
  .site-footer::before{
    content:"";
    display:block;
    height:2px;
    background:linear-gradient(90deg,var(--neon-400),rgba(182,240,60,.15) 55%,rgba(11,22,33,0));
  }
  .footer-grid{
    display:grid;
    grid-template-columns:1fr;
    gap:32px;
    padding:48px 0 36px;
  }
  @media (min-width:640px){
    .footer-grid{grid-template-columns:1fr 1fr;}
  }
  @media (min-width:1024px){
    .footer-grid{grid-template-columns:5fr 3fr 3fr 3fr;gap:40px;padding:64px 0 44px;}
  }
  .footer-col h4{
    font-size:14px;
    font-weight:600;
    color:#fff;
    margin-bottom:14px;
  }
  .footer-col ul{display:flex;flex-direction:column;gap:10px;}
  .footer-col a{
    font-size:14px;
    line-height:1.7;
    color:rgba(255,255,255,.7);
    transition:color .2s var(--ease);
  }
  .footer-col a:hover{color:var(--neon-400);text-decoration:underline;text-underline-offset:3px;}
  .footer-brand{
    display:flex;
    align-items:center;
    gap:8px;
    font-size:16px;
    font-weight:700;
    color:#fff;
    margin-bottom:14px;
  }
  .footer-brand .logo-mark{
    height:28px;
    font-size:14px;
    padding:0 8px;
  }
  .footer-col p{
    font-size:13.5px;
    line-height:1.85;
    color:rgba(255,255,255,.6);
    max-width:380px;
  }
  .footer-qr{
    margin-top:16px;
    width:112px;height:112px;
    border-radius:var(--r-md);
    border:1px dashed rgba(255,255,255,.22);
    background:rgba(255,255,255,.04);
    display:flex;
    align-items:center;
    justify-content:center;
    text-align:center;
    font-size:12px;
    line-height:1.7;
    color:rgba(255,255,255,.5);
  }
  .footer-bottom{
    display:flex;
    flex-direction:column;
    gap:8px;
    padding:18px 0 28px;
    border-top:1px solid rgba(255,255,255,.08);
    font-size:12.5px;
    color:rgba(255,255,255,.45);
  }
  @media (min-width:768px){
    .footer-bottom{flex-direction:row;align-items:center;justify-content:space-between;}
  }

  /* ---------- 进场动画 ---------- */
  .reveal{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease);}
  .reveal.is-visible{opacity:1;transform:translateY(0);}
  @media (prefers-reduced-motion: reduce){
    html{scroll-behavior:auto;}
    *,*::before,*::after{
      animation-duration:.001ms !important;
      animation-iteration-count:1 !important;
      transition-duration:.001ms !important;
    }
    .reveal{opacity:1;transform:none;}
  }

/* roulang page: category2 */
:root{
    --brand-700:#0A3D52;
    --brand-600:#0E5D7A;
    --brand-500:#14799C;
    --brand-100:#E3F1F6;
    --neon-400:#B6F03C;
    --neon-500:#9FE01F;
    --amber-500:#F2A33A;
    --ink-900:#0B1621;
    --ink-800:#12222F;
    --line:#E1E8ED;
    --bg:#F5F8FA;
    --surface:#FFFFFF;
    --text-900:#0F1A22;
    --text-600:#4B5B67;
    --text-400:#8695A0;
    --r-sm:8px;
    --r-md:12px;
    --r-lg:16px;
    --r-xl:22px;
    --sh-1:0 1px 2px rgba(11,22,33,.05);
    --sh-2:0 6px 18px rgba(11,22,33,.07);
    --sh-3:0 18px 40px rgba(11,22,33,.12);
    --sh-neon:0 0 0 1px rgba(182,240,60,.6), 0 0 18px rgba(182,240,60,.35);
    --ease:cubic-bezier(.22,.61,.36,1);
    --header-h:72px;
  }

  *{box-sizing:border-box}
  html{scroll-behavior:smooth}
  html body{
    margin:0;
    font-family:-apple-system,"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC","Noto Sans SC",sans-serif;
    font-size:16px;
    line-height:1.85;
    color:var(--text-600);
    background:var(--bg);
    -webkit-font-smoothing:antialiased;
  }
  img{display:block;max-width:100%}
  a{color:inherit;text-decoration:none}
  button{font:inherit}
  h1,h2,h3,h4,p,ul,ol{margin:0;padding:0}
  ul,ol{list-style:none}
  .num{font-variant-numeric:tabular-nums}
  :focus-visible{outline:2px solid var(--neon-400);outline-offset:2px;border-radius:4px}

  .container{
    width:100%;
    max-width:1200px;
    margin:0 auto;
    padding-left:20px;
    padding-right:20px;
  }
  @media (min-width:768px){ .container{padding-left:32px;padding-right:32px} }
  @media (min-width:1024px){ .container{padding-left:40px;padding-right:40px} }
  @media (min-width:1536px){ .container{max-width:1280px} }

  /* ============ 顶部导航 ============ */
  .site-header{
    position:sticky;
    top:0;
    z-index:60;
    background:rgba(11,22,33,.96);
    backdrop-filter:blur(10px);
    -webkit-backdrop-filter:blur(10px);
    transition:box-shadow .2s var(--ease);
  }
  .site-header::after{
    content:"";
    position:absolute;
    left:0;right:0;bottom:0;
    height:2px;
    background:linear-gradient(90deg,var(--neon-400) 0%,rgba(182,240,60,.15) 38%,transparent 72%);
    pointer-events:none;
  }
  .site-header.is-scrolled{box-shadow:0 10px 28px rgba(11,22,33,.35)}

  .header-inner{
    max-width:1200px;
    margin:0 auto;
    padding:0 20px;
    height:64px;
    display:flex;
    align-items:center;
    gap:18px;
  }
  @media (min-width:768px){ .header-inner{padding:0 32px} }
  @media (min-width:1024px){
    .header-inner{height:var(--header-h);padding:0 40px;gap:32px}
  }
  @media (min-width:1536px){ .header-inner{max-width:1280px} }

  .brand{
    display:flex;
    align-items:center;
    gap:7px;
    flex:0 0 auto;
    font-size:17px;
    font-weight:700;
    letter-spacing:0;
    color:#fff;
    line-height:1;
    padding:6px 0;
  }
  .logo-mark{
    color:var(--neon-400);
    font-size:18px;
    font-weight:700;
  }
  .logo-text{color:#fff;font-weight:700}
  .brand:hover .logo-text{color:var(--neon-400)}
  .brand,.brand .logo-text{transition:color .2s var(--ease)}

  .main-nav{
    display:none;
    align-items:center;
    gap:30px;
    margin:0 auto;
  }
  @media (min-width:1024px){ .main-nav{display:flex} }

  .nav-item{
    position:relative;
    display:inline-block;
    padding:6px 0;
    font-size:15px;
    color:rgba(255,255,255,.72);
    transition:color .2s var(--ease);
    white-space:nowrap;
  }
  .nav-item::after{
    content:"";
    position:absolute;
    left:0;bottom:-4px;
    width:0;height:2px;
    background:var(--neon-400);
    transition:width .2s var(--ease);
  }
  .nav-item:hover{color:#fff}
  .nav-item:hover::after{width:100%}
  .nav-item.active{
    color:#fff;
    font-weight:600;
  }
  .nav-item.active::after{
    width:100%;
    box-shadow:0 0 12px rgba(182,240,60,.65);
  }

  .header-actions{
    display:flex;
    align-items:center;
    gap:12px;
    margin-left:auto;
  }
  @media (min-width:1024px){ .header-actions{margin-left:0} }

  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    height:48px;
    padding:0 24px;
    border-radius:var(--r-md);
    border:1px solid transparent;
    font-size:15px;
    font-weight:600;
    line-height:1;
    cursor:pointer;
    transition:transform .2s var(--ease),background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease),filter .2s var(--ease);
  }
  .btn:hover{transform:translateY(-1px)}
  .btn:active{transform:translateY(0);filter:brightness(.96)}
  .btn[disabled]{opacity:.45;cursor:not-allowed;transform:none}

  .btn-primary{background:var(--brand-600);color:#fff}
  .btn-primary:hover{background:var(--brand-500);box-shadow:var(--sh-2)}

  .btn-neon{
    background:var(--ink-900);
    color:var(--neon-400);
    border-color:rgba(182,240,60,.65);
  }
  .btn-neon:hover{
    background:#08111A;
    border-color:var(--neon-400);
    box-shadow:var(--sh-neon);
  }

  .btn-ghost{
    background:#fff;
    color:var(--brand-600);
    border-color:var(--line);
  }
  .btn-ghost:hover{border-color:var(--brand-500);color:var(--brand-500)}

  .btn-sm{height:40px;padding:0 18px;font-size:14px}

  .nav-toggle{
    display:flex;
    align-items:center;
    justify-content:center;
    width:44px;height:44px;
    background:transparent;
    border:1px solid rgba(255,255,255,.18);
    border-radius:var(--r-sm);
    cursor:pointer;
  }
  @media (min-width:1024px){ .nav-toggle{display:none} }
  .nav-toggle span{
    position:relative;
    display:block;
    width:18px;height:2px;
    background:#fff;
    transition:background .2s var(--ease);
  }
  .nav-toggle span::before,
  .nav-toggle span::after{
    content:"";
    position:absolute;left:0;
    width:18px;height:2px;
    background:#fff;
    transition:transform .2s var(--ease);
  }
  .nav-toggle span::before{top:-6px}
  .nav-toggle span::after{top:6px}
  .nav-toggle[aria-expanded="true"] span{background:transparent}
  .nav-toggle[aria-expanded="true"] span::before{transform:translateY(6px) rotate(45deg)}
  .nav-toggle[aria-expanded="true"] span::after{transform:translateY(-6px) rotate(-45deg)}

  .mobile-drawer{
    position:fixed;
    inset:0;
    z-index:55;
    background:var(--ink-900);
    padding:88px 24px 32px;
    display:flex;
    flex-direction:column;
    gap:6px;
    opacity:0;
    pointer-events:none;
    transform:translateY(-10px);
    transition:opacity .24s var(--ease),transform .24s var(--ease);
  }
  .mobile-drawer.is-open{opacity:1;pointer-events:auto;transform:none}
  @media (min-width:1024px){ .mobile-drawer{display:none} }
  .mobile-drawer a.drawer-link{
    font-size:18px;
    color:rgba(255,255,255,.82);
    padding:14px 0;
    border-bottom:1px solid rgba(255,255,255,.08);
  }
  .mobile-drawer a.drawer-link.is-active{color:var(--neon-400)}
  .drawer-foot{
    margin-top:auto;
    padding-top:20px;
    border-top:1px solid rgba(255,255,255,.08);
    font-size:12px;
    color:rgba(255,255,255,.45);
  }
  .drawer-cta{margin-top:16px;width:100%}

  /* ============ 通用板块 ============ */
  .section{padding:56px 0;scroll-margin-top:88px}
  @media (min-width:768px){ .section{padding:72px 0} }
  @media (min-width:1024px){ .section{padding:96px 0} }

  .sec-head{max-width:760px;margin-bottom:40px}
  .sec-kicker{
    display:inline-block;
    font-size:13px;
    font-weight:600;
    letter-spacing:.06em;
    color:var(--brand-600);
    background:var(--brand-100);
    border-radius:999px;
    padding:5px 14px;
    margin-bottom:16px;
  }
  .sec-title{
    font-size:24px;
    line-height:1.3;
    font-weight:700;
    color:var(--text-900);
    letter-spacing:0;
  }
  @media (min-width:1024px){ .sec-title{font-size:32px} }
  .sec-desc{margin-top:14px;font-size:16px;color:var(--text-600);line-height:1.85}

  /* ============ 分类 Hero ============ */
  .cat-hero{
    position:relative;
    overflow:hidden;
    background:linear-gradient(118deg,#0A3D52 0%,#0E5D7A 62%,#093648 100%);
    padding:36px 0 40px;
    border-bottom:1px solid rgba(255,255,255,.08);
    scroll-margin-top:88px;
  }
  @media (min-width:1024px){
    .cat-hero{min-height:290px;padding:52px 0 60px}
  }
  .cat-hero::before{
    content:"";
    position:absolute;
    inset:0;
    background-image:
      linear-gradient(rgba(255,255,255,.055) 1px,transparent 1px),
      linear-gradient(90deg,rgba(255,255,255,.055) 1px,transparent 1px);
    background-size:52px 52px;
    opacity:.85;
    pointer-events:none;
  }
  .cat-hero::after{
    content:"";
    position:absolute;
    right:-80px;top:-120px;
    width:340px;height:340px;
    border-radius:50%;
    background:radial-gradient(circle,rgba(182,240,60,.22) 0%,rgba(182,240,60,0) 68%);
    pointer-events:none;
  }
  .hero-inner{position:relative;z-index:2}

  .breadcrumb{
    display:flex;
    align-items:center;
    gap:8px;
    font-size:13px;
    line-height:1.6;
    color:rgba(255,255,255,.58);
    white-space:nowrap;
    overflow-x:auto;
    margin-bottom:16px;
  }
  .breadcrumb a{color:rgba(255,255,255,.58);transition:color .2s var(--ease)}
  .breadcrumb a:hover{color:var(--neon-400)}
  .breadcrumb .sep{color:rgba(255,255,255,.3)}
  .breadcrumb .current{color:#fff}

  .hero-title{
    font-size:28px;
    line-height:1.28;
    font-weight:700;
    color:#fff;
    letter-spacing:0;
    max-width:820px;
  }
  @media (min-width:768px){ .hero-title{font-size:34px} }
  @media (min-width:1024px){ .hero-title{font-size:38px;line-height:1.25} }

  .hero-sub{
    margin-top:16px;
    font-size:15px;
    line-height:1.85;
    color:rgba(255,255,255,.78);
    max-width:720px;
  }
  @media (min-width:1024px){ .hero-sub{font-size:16px} }

  .hero-rule{
    width:64px;height:3px;
    border-radius:3px;
    background:linear-gradient(90deg,var(--neon-400),rgba(182,240,60,0));
    margin-top:22px;
  }

  .hero-chip{
    display:inline-flex;
    align-items:center;
    gap:10px;
    margin-top:22px;
    padding:9px 18px;
    border-radius:999px;
    background:rgba(11,22,33,.55);
    border:1px solid rgba(182,240,60,.42);
    color:#fff;
    font-size:13px;
    line-height:1;
  }
  @media (min-width:1024px){
    .hero-chip{
      position:absolute;
      right:0;
      bottom:-6px;
      margin-top:0;
    }
  }
  .hero-chip .dot{
    width:7px;height:7px;border-radius:50%;
    background:var(--neon-400);
    box-shadow:0 0 10px rgba(182,240,60,.8);
  }
  .hero-chip b{color:var(--neon-400);font-weight:700}

  /* ============ 标签 + 卡片网格 ============ */
  .pill-row{
    display:flex;
    flex-wrap:wrap;
    gap:10px;
    margin-bottom:32px;
  }
  .pill{
    display:inline-flex;
    align-items:center;
    height:34px;
    padding:0 18px;
    border-radius:999px;
    border:1px solid var(--line);
    background:#fff;
    color:var(--text-600);
    font-size:13px;
    font-weight:500;
    transition:border-color .2s var(--ease),color .2s var(--ease),background-color .2s var(--ease);
  }
  .pill:hover{border-color:var(--brand-500);color:var(--brand-600)}
  .pill.is-active{
    background:var(--brand-600);
    border-color:var(--brand-600);
    color:#fff;
    box-shadow:var(--sh-1);
  }

  .svc-grid{
    display:grid;
    grid-template-columns:1fr;
    gap:20px;
  }
  @media (min-width:768px){
    .svc-grid{grid-template-columns:1fr 1fr;gap:24px}
    .svc-col-offset{margin-top:28px}
  }

  .svc-col{display:flex;flex-direction:column;gap:20px}
  @media (min-width:768px){ .svc-col{gap:24px} }

  .svc-card{
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--r-lg);
    padding:20px;
    box-shadow:var(--sh-2);
    transition:transform .26s var(--ease),box-shadow .26s var(--ease),border-color .2s var(--ease);
  }
  @media (min-width:1024px){ .svc-card{padding:26px} }
  .svc-card:hover{
    transform:translateY(-3px);
    box-shadow:var(--sh-3);
    border-color:#CFE0E7;
  }

  .svc-media{
    position:relative;
    overflow:hidden;
    border-radius:var(--r-md);
    aspect-ratio:16/9;
    background:linear-gradient(120deg,var(--brand-100),var(--line));
    margin-bottom:18px;
  }
  .svc-media img{
    width:100%;height:100%;
    object-fit:cover;
    transition:transform .5s var(--ease);
  }
  .svc-card:hover .svc-media img{transform:scale(1.03)}
  .svc-media::after{
    content:"";
    position:absolute;
    inset:0;
    background:linear-gradient(200deg,rgba(10,61,82,.34),rgba(10,61,82,.06) 55%,transparent);
  }

  .svc-icon{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    width:44px;height:44px;
    border-radius:var(--r-md);
    background:var(--brand-100);
    color:var(--brand-600);
    margin-bottom:16px;
  }
  .svc-icon svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}

  .svc-title{
    font-size:20px;
    line-height:1.4;
    font-weight:600;
    color:var(--text-900);
    margin-bottom:10px;
  }
  .svc-text{font-size:15px;line-height:1.78;color:var(--text-600)}
  .svc-tag{
    display:inline-block;
    margin-top:16px;
    font-size:13px;
    color:var(--brand-600);
    background:var(--brand-100);
    border-radius:999px;
    padding:4px 12px;
  }

  /* ============ 数据条 ============ */
  .stat-band{
    background:var(--ink-900);
    border-radius:var(--r-lg);
    padding:28px 20px;
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:24px 0;
  }
  @media (min-width:1024px){
    .stat-band{
      grid-template-columns:repeat(4,1fr);
      padding:36px 40px;
      gap:0;
    }
  }
  .stat-item{
    padding:0 16px;
    border-left:1px solid rgba(255,255,255,.12);
  }
  .stat-item:first-child{border-left:none}
  @media (max-width:1023px){
    .stat-item:nth-child(odd){border-left:none;padding-left:0}
    .stat-item:nth-child(even){border-left:1px solid rgba(255,255,255,.12)}
  }
  .stat-num{
    font-size:32px;
    font-weight:700;
    line-height:1.1;
    color:var(--neon-400);
    font-variant-numeric:tabular-nums;
  }
  @media (min-width:1024px){ .stat-num{font-size:42px} }
  .stat-label{
    margin-top:10px;
    font-size:13px;
    line-height:1.7;
    color:rgba(255,255,255,.66);
  }

  /* ============ 要点式说明区 ============ */
  .point-list{display:flex;flex-direction:column;gap:20px}
  .point-item{
    display:flex;
    gap:16px;
    align-items:flex-start;
    padding:6px 0;
    border-bottom:1px dashed var(--line);
    padding-bottom:22px;
  }
  .point-item:last-child{border-bottom:none;padding-bottom:6px}
  .point-icon{
    flex:0 0 auto;
    width:40px;height:40px;
    border-radius:var(--r-md);
    background:var(--brand-100);
    color:var(--brand-600);
    display:flex;
    align-items:center;
    justify-content:center;
  }
  .point-icon svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
  .point-title{
    font-size:18px;
    font-weight:600;
    color:var(--text-900);
    line-height:1.5;
  }
  .point-text{
    margin-top:6px;
    font-size:15px;
    line-height:1.8;
    color:var(--text-600);
  }

  /* ============ FAQ ============ */
  .faq-list{
    display:flex;
    flex-direction:column;
    gap:12px;
    max-width:920px;
  }
  .faq-item{
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--r-md);
    padding:4px 20px;
    box-shadow:var(--sh-1);
    transition:box-shadow .2s var(--ease),border-color .2s var(--ease);
  }
  .faq-item:hover{border-color:#CFE0E7}
  .faq-item.open{box-shadow:var(--sh-2);border-color:#CFE0E7}
  .faq-q{
    width:100%;
    min-height:56px;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
    background:transparent;
    border:none;
    padding:16px 0;
    text-align:left;
    font-size:17px;
    font-weight:600;
    color:var(--text-900);
    line-height:1.6;
    cursor:pointer;
  }
  .faq-icon{
    position:relative;
    flex:0 0 auto;
    width:20px;height:20px;
    border-radius:50%;
    border:1px solid var(--line);
  }
  .faq-icon::before,
  .faq-icon::after{
    content:"";
    position:absolute;
    left:50%;top:50%;
    width:9px;height:1.6px;
    background:var(--brand-600);
    transform:translate(-50%,-50%);
    transition:transform .22s var(--ease),opacity .22s var(--ease);
  }
  .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg)}
  .faq-item.open .faq-icon::after{transform:translate(-50%,-50%) rotate(0deg);opacity:0}
  .faq-a{
    max-height:0;
    overflow:hidden;
    transition:max-height .28s var(--ease);
  }
  .faq-a-inner{
    position:relative;
    padding:0 0 20px 14px;
    font-size:16px;
    line-height:1.85;
    color:var(--text-600);
  }
  .faq-item.open .faq-a-inner::before{
    content:"";
    position:absolute;
    left:0;top:6px;bottom:22px;
    width:3px;
    border-radius:2px;
    background:var(--neon-400);
  }

  /* ============ CTA 带 ============ */
  .cta-band{
    display:flex;
    flex-direction:column;
    gap:22px;
    background:linear-gradient(180deg,#FFFFFF 0%,#EFF7FA 100%);
    border:1px solid var(--line);
    border-radius:var(--r-lg);
    padding:26px 20px;
    box-shadow:0 0 0 1px rgba(182,240,60,.42),var(--sh-2);
  }
  @media (min-width:768px){
    .cta-band{
      flex-direction:row;
      align-items:center;
      justify-content:space-between;
      padding:32px 36px;
      gap:32px;
    }
  }
  .cta-band h2{
    font-size:22px;
    font-weight:700;
    color:var(--text-900);
    line-height:1.4;
  }
  @media (min-width:1024px){ .cta-band h2{font-size:26px} }
  .cta-band p{
    margin-top:10px;
    font-size:15px;
    line-height:1.8;
    color:var(--text-600);
    max-width:620px;
  }
  .cta-actions{display:flex;flex-wrap:wrap;gap:12px;flex:0 0 auto}

  /* ============ 页脚 ============ */
  .site-footer{
    position:relative;
    background:var(--ink-900);
    color:rgba(255,255,255,.7);
    padding:56px 0 24px;
    margin-top:56px;
  }
  .site-footer::before{
    content:"";
    position:absolute;
    left:0;right:0;top:0;
    height:2px;
    background:linear-gradient(90deg,var(--neon-400) 0%,rgba(182,240,60,.16) 42%,transparent 78%);
  }
  @media (min-width:1024px){ .site-footer{padding-top:72px;margin-top:96px} }

  .footer-grid{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:32px 24px;
  }
  @media (min-width:1024px){
    .footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px}
  }

  .footer-brand{
    display:flex;
    align-items:center;
    gap:7px;
    font-size:17px;
    font-weight:700;
    color:#fff;
    line-height:1;
    margin-bottom:16px;
  }
  .footer-brand .logo-mark{color:var(--neon-400)}
  .footer-col p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);max-width:340px}

  .footer-col h4{
    font-size:14px;
    font-weight:600;
    color:#fff;
    margin-bottom:16px;
  }
  .footer-col ul{display:flex;flex-direction:column;gap:10px}
  .footer-col ul a{
    font-size:14px;
    color:rgba(255,255,255,.7);
    transition:color .2s var(--ease);
  }
  .footer-col ul a:hover{color:var(--neon-400)}

  .footer-qr{
    margin-top:18px;
    width:128px;
    height:88px;
    border:1px dashed rgba(255,255,255,.22);
    border-radius:var(--r-sm);
    display:flex;
    align-items:center;
    justify-content:center;
    text-align:center;
    font-size:12px;
    line-height:1.6;
    color:rgba(255,255,255,.5);
    background:rgba(255,255,255,.03);
  }

  .footer-bottom{
    margin-top:40px;
    padding-top:20px;
    border-top:1px solid rgba(255,255,255,.08);
    display:flex;
    flex-direction:column;
    gap:8px;
    font-size:12px;
    color:rgba(255,255,255,.45);
  }
  @media (min-width:768px){
    .footer-bottom{flex-direction:row;align-items:center;justify-content:space-between;font-size:13px}
  }

  /* ============ 动效 ============ */
  .reveal{
    opacity:0;
    transform:translateY(12px);
    transition:opacity .5s var(--ease),transform .5s var(--ease);
  }
  .reveal.in-view{opacity:1;transform:none}

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

  @media (max-width:480px){
    .btn{width:100%}
    .header-actions .btn{width:auto}
    .cta-actions{width:100%}
  }