/* roulang page: index */
:root{
  --bg:#060B16;
  --panel-1:#0B1322;
  --panel-2:#111B2E;
  --glass:rgba(255,255,255,.04);
  --brand:#2E63F6;
  --brand-dark:#1B47C4;
  --brand-light:#7DA2FF;
  --cyan:#17D3B0;
  --copper:#E3A857;
  --text:#E9EEF8;
  --text-2:#9AA9C2;
  --text-3:#66748C;
  --line:rgba(255,255,255,.08);
  --line-hover:rgba(255,255,255,.18);
  --line-cyan:rgba(23,211,176,.45);
  --r-card:18px;
  --r-btn:12px;
  --r-img:16px;
  --shadow-card:0 18px 40px -24px rgba(0,0,0,.9);
  --shadow-pop:0 24px 60px -20px rgba(0,0,0,.95);
  --shadow-glow:0 0 0 1px rgba(46,99,246,.55),0 10px 30px -10px rgba(46,99,246,.65);
  --ease:200ms ease-out;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;line-height:1.85;font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4{margin:0;font-weight:600;}
h1{font-size:clamp(30px,5vw,54px);font-weight:700;line-height:1.15;letter-spacing:-.02em;}
h2{font-size:clamp(24px,3.4vw,36px);line-height:1.25;letter-spacing:-.01em;}
h3{font-size:20px;line-height:1.4;}
h4{font-size:17px;line-height:1.5;}
p{margin:0 0 1.2em;}
p:last-child{margin-bottom:0;}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;}
input,textarea{font-family:inherit;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:4px;}
::selection{background:rgba(46,99,246,.4);}

.shell{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
@media (max-width:640px){.shell{padding:0 20px;}}

.section{padding:96px 0;}
@media (max-width:1024px){.section{padding:80px 0;}}
@media (max-width:640px){.section{padding:64px 0;}}

.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px;flex-wrap:wrap;}
.sec-title{color:var(--text);}
.sec-sub{font-size:15px;color:var(--text-2);line-height:1.7;margin-top:10px;max-width:620px;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.04em;color:var(--cyan);text-transform:uppercase;}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--cyan);opacity:.7;}

/* ============ header ============ */
.site-header{position:fixed;top:0;left:0;right:0;z-index:60;border-bottom:1px solid transparent;transition:background var(--ease),backdrop-filter var(--ease),border-color var(--ease);}
.site-header.scrolled{background:rgba(6,11,22,.72);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom-color:var(--line);}
.nav-bar{display:flex;align-items:center;justify-content:space-between;height:74px;}
.logo{display:inline-flex;align-items:center;gap:10px;}
.logo-mark{width:34px;height:34px;border-radius:11px;border:1px solid var(--line-hover);background:linear-gradient(150deg,rgba(46,99,246,.28),rgba(23,211,176,.14));display:flex;align-items:center;justify-content:center;flex:none;}
.logo-mark svg{width:18px;height:18px;stroke:var(--cyan);fill:none;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;}
.logo-text{font-size:17px;font-weight:700;letter-spacing:-.01em;color:var(--text);}
.logo-text em{font-style:normal;color:var(--text-2);font-weight:500;font-size:13px;margin-left:6px;}
.nav-links{display:flex;align-items:center;gap:34px;}
.nav-link{position:relative;font-size:15px;color:var(--text-2);padding:8px 0;transition:color var(--ease);}
.nav-link::after{content:"";position:absolute;left:0;right:0;bottom:2px;height:1px;background:var(--cyan);transform:scaleX(0);transform-origin:left;transition:transform var(--ease);}
.nav-link:hover{color:var(--text);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:var(--text);}
.nav-link.active::after{transform:scaleX(1);background:var(--brand);}
.nav-link.active::before{content:"";position:absolute;left:-13px;top:50%;transform:translateY(-50%);width:4px;height:4px;border-radius:999px;background:var(--cyan);}

.btn-primary{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border:0;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;color:#fff;
  background:linear-gradient(180deg,#2E63F6,#2456DE);
  box-shadow:var(--shadow-glow);
  transition:transform var(--ease),box-shadow var(--ease);
}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 0 0 1px rgba(46,99,246,.8),0 16px 36px -12px rgba(46,99,246,.85);}
.btn-primary:active{transform:translateY(1px);}
.btn-outline{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border:1px solid var(--line-hover);border-radius:var(--r-btn);
  font-size:15px;font-weight:600;color:var(--text);background:transparent;
  transition:border-color var(--ease),color var(--ease),background var(--ease);
}
.btn-outline:hover{border-color:var(--line-cyan);color:var(--cyan);background:rgba(23,211,176,.05);}
.btn-outline:active{transform:translateY(1px);}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand-light);border-bottom:1px solid transparent;padding-bottom:2px;transition:color var(--ease),border-color var(--ease);}
.text-link:hover{color:var(--cyan);border-bottom-color:rgba(23,211,176,.6);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}

.menu-btn{width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:var(--r-btn);background:transparent;color:var(--text);transition:border-color var(--ease);}
.menu-btn:hover{border-color:var(--line-hover);}

/* ============ drawer ============ */
.drawer{position:fixed;inset:0;z-index:90;background:rgba(4,8,16,.72);opacity:0;visibility:hidden;transition:opacity var(--ease),visibility var(--ease);}
.drawer.open{opacity:1;visibility:visible;}
.drawer-panel{
  position:absolute;top:0;right:0;height:100%;width:min(86vw,340px);
  background:rgba(11,19,34,.97);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  border-left:1px solid var(--line);padding:22px;transform:translateX(100%);
  transition:transform 240ms ease-out;display:flex;flex-direction:column;
}
.drawer.open .drawer-panel{transform:translateX(0);}
.drawer-close{width:40px;height:40px;border:1px solid var(--line);border-radius:var(--r-btn);background:transparent;color:var(--text-2);align-self:flex-end;display:flex;align-items:center;justify-content:center;transition:color var(--ease),border-color var(--ease);}
.drawer-close:hover{color:var(--text);border-color:var(--line-hover);}
.drawer-nav{margin-top:20px;border-top:1px solid var(--line);}
.drawer-nav a{display:flex;align-items:center;justify-content:space-between;height:52px;border-bottom:1px solid var(--line);font-size:16px;color:var(--text-2);transition:color var(--ease);}
.drawer-nav a:hover,.drawer-nav a.active{color:var(--text);}
.drawer-nav a.active::after{content:"";width:5px;height:5px;border-radius:999px;background:var(--cyan);}
.drawer-foot{margin-top:auto;padding-top:20px;font-size:13px;color:var(--text-3);line-height:1.8;}

/* ============ hero ============ */
.hero{position:relative;padding:150px 0 96px;overflow:hidden;}
.hero::before{content:"";position:absolute;top:-200px;left:50%;transform:translateX(-50%);width:1000px;height:680px;background:radial-gradient(circle at center,rgba(46,99,246,.18),transparent 65%);pointer-events:none;}
.hero::after{content:"";position:absolute;top:120px;right:-120px;width:420px;height:420px;background:radial-gradient(circle at center,rgba(23,211,176,.1),transparent 68%);pointer-events:none;}
@media (max-width:1024px){.hero{padding:126px 0 76px;}}
@media (max-width:640px){.hero{padding:112px 0 60px;}}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1fr);gap:52px;align-items:center;}
@media (min-width:1024px){.hero-inner{grid-template-columns:1.05fr .95fr;gap:56px;}}
.hero-label{display:inline-flex;align-items:center;gap:8px;height:32px;padding:0 14px;border:1px solid var(--line);border-radius:999px;font-size:12px;letter-spacing:.04em;color:var(--text-2);background:rgba(255,255,255,.03);}
.hero-label i{width:6px;height:6px;border-radius:999px;background:var(--cyan);display:inline-block;font-style:normal;}
.hero h1{margin:22px 0 0;}
.hero h1 span{color:var(--brand-light);}
.hero-sub{margin-top:20px;font-size:16px;color:var(--text-2);line-height:1.85;max-width:520px;}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:18px;margin-top:34px;}
.trust-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:38px;padding-top:28px;border-top:1px solid var(--line);}
.trust-chip{display:inline-flex;align-items:center;gap:6px;height:34px;padding:0 14px;border:1px solid var(--line);border-radius:999px;font-size:13px;color:var(--text-2);background:rgba(255,255,255,.02);}
.trust-chip i{width:5px;height:5px;border-radius:999px;background:var(--cyan);font-style:normal;}

.hero-media{position:relative;}
.hero-media img{width:100%;height:clamp(280px,40vw,440px);object-fit:cover;border-radius:var(--r-img);border:1px solid var(--line);}
@media (max-width:1024px){.hero-media img{height:clamp(240px,38vw,340px);}}
@media (max-width:640px){.hero-media img{height:220px;}}
.hero-card{
  position:absolute;left:16px;bottom:16px;width:min(300px,74%);
  background:rgba(11,19,34,.82);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid var(--line-hover);border-radius:var(--r-card);padding:16px;box-shadow:var(--shadow-pop);
}
.hero-card-row{display:flex;align-items:center;gap:10px;padding:9px 0;}
.hero-card-row+.hero-card-row{border-top:1px solid var(--line);}
.hero-card-row svg{width:17px;height:17px;stroke:var(--cyan);fill:none;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;flex:none;}
.hero-card-row .k{font-size:13px;color:var(--text-2);}
.hero-card-row .v{margin-left:auto;font-size:13px;font-weight:600;color:var(--text);}

/* ============ pain ============ */
.pain-list{display:flex;flex-direction:column;gap:14px;}
.pain-item{
  display:flex;align-items:center;gap:20px;
  background:var(--glass);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid var(--line);border-radius:var(--r-card);padding:20px 24px;
  transition:border-color var(--ease),transform var(--ease);
}
.pain-item:hover{border-color:var(--line-cyan);transform:translateY(-2px);}
.pain-q{font-size:16px;color:var(--text);line-height:1.6;flex:1;min-width:0;}
.pain-idx{font-size:13px;color:var(--copper);font-weight:600;flex:none;width:28px;letter-spacing:.04em;}
.pain-link{flex:none;display:inline-flex;align-items:center;gap:6px;height:34px;padding:0 14px;border:1px solid var(--line-hover);border-radius:999px;font-size:13px;color:var(--text-2);transition:color var(--ease),border-color var(--ease);}
.pain-link:hover{color:var(--cyan);border-color:var(--line-cyan);}
@media (max-width:640px){
  .pain-item{flex-wrap:wrap;gap:12px;padding:18px 20px;}
  .pain-q{flex:1 1 100%;order:2;}
  .pain-idx{order:1;}
  .pain-link{order:3;margin-left:auto;}
}

/* ============ plan ============ */
.plan-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:22px;}
@media (min-width:1024px){.plan-grid{grid-template-columns:7fr 5fr;}}
.card{
  position:relative;background:var(--glass);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow-card);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.card:hover{transform:translateY(-3px);border-color:rgba(23,211,176,.35);box-shadow:var(--shadow-pop);}
.plan-main{overflow:hidden;display:grid;grid-template-columns:minmax(0,1fr);}
@media (min-width:768px){.plan-main{grid-template-columns:1fr 1fr;}}
.plan-main-media img{width:100%;height:100%;min-height:240px;object-fit:cover;border-radius:var(--r-card) var(--r-card) 0 0;}
@media (min-width:768px){.plan-main-media img{border-radius:var(--r-card) 0 0 var(--r-card);min-height:100%;}}
.plan-main-body{padding:26px;}
@media (max-width:640px){.plan-main-body{padding:20px;}}
.plan-points{margin-top:18px;display:flex;flex-direction:column;gap:10px;}
.plan-points li{display:flex;gap:10px;font-size:14px;color:var(--text-2);line-height:1.7;}
.plan-points li::before{content:"";flex:none;width:5px;height:5px;border-radius:999px;background:var(--cyan);margin-top:9px;}
.plan-side{display:grid;grid-template-columns:minmax(0,1fr);gap:18px;}
.plan-mini{padding:22px;}
.plan-mini .num{font-size:12px;letter-spacing:.06em;color:var(--copper);font-weight:600;}
.plan-mini h3{font-size:18px;margin-top:10px;}
.plan-mini p{font-size:14px;color:var(--text-2);margin:8px 0 0;line-height:1.7;}
.badge{display:inline-flex;align-items:center;height:26px;padding:0 11px;border-radius:999px;font-size:12px;letter-spacing:.04em;border:1px solid var(--line-hover);color:var(--text-2);background:rgba(255,255,255,.03);}
.badge-cyan{border-color:rgba(23,211,176,.4);color:var(--cyan);}
.badge-copper{border-color:rgba(227,168,87,.4);color:var(--copper);}

/* ============ stats ============ */
.stats-panel{
  background:rgba(255,255,255,.03);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid var(--line);border-radius:var(--r-card);padding:8px 0;box-shadow:var(--shadow-card);
}
.stats-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));}
@media (min-width:768px){.stats-grid{grid-template-columns:repeat(4,minmax(0,1fr));}}
.stat{padding:30px 24px;border-top:1px solid var(--line);position:relative;}
.stat:nth-child(1),.stat:nth-child(2){border-top:0;}
@media (min-width:768px){.stat{border-top:0;border-left:1px solid var(--line);}.stat:first-child{border-left:0;}}
@media (max-width:767px){
  .stat:nth-child(odd){border-left:0;}
  .stat:nth-child(even){border-left:1px solid var(--line);}
}
.stat-num{font-size:clamp(28px,4vw,40px);font-weight:700;color:var(--copper);letter-spacing:-.02em;line-height:1.1;}
.stat-num small{font-size:14px;font-weight:600;margin-left:4px;color:var(--copper);opacity:.85;}
.stat-label{margin-top:10px;font-size:13px;color:var(--text-2);letter-spacing:.04em;}

/* ============ posts ============ */
.posts-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:22px;}
@media (min-width:1024px){.posts-grid{grid-template-columns:8fr 4fr;}}
.post-card{display:block;overflow:hidden;}
.post-feature{display:flex;flex-direction:column;}
@media (min-width:768px){.post-feature{flex-direction:row;}}
.post-thumb{flex:none;width:100%;}
@media (min-width:768px){.post-thumb{width:44%;}}
.post-thumb img{width:100%;height:220px;object-fit:cover;}
@media (min-width:768px){.post-thumb img{height:100%;min-height:260px;}}
.post-thumb-fallback{width:100%;height:220px;background:linear-gradient(140deg,rgba(46,99,246,.28),rgba(23,211,176,.16));}
@media (min-width:768px){.post-thumb-fallback{height:100%;min-height:260px;}}
.post-body{padding:24px;flex:1;min-width:0;display:flex;flex-direction:column;}
.post-title{font-size:18px;line-height:1.5;margin-top:14px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color var(--ease);}
.post-card:hover .post-title{color:var(--cyan);}
.post-summary{margin-top:10px;font-size:14px;color:var(--text-2);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-meta{margin-top:auto;padding-top:18px;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--text-3);}
.post-more{color:var(--brand-light);transition:color var(--ease);}
.post-card:hover .post-more{color:var(--cyan);}
.posts-side{display:grid;grid-template-columns:minmax(0,1fr);gap:18px;align-content:start;}
.post-mini{padding:20px;}
.post-mini .badge{margin-bottom:4px;}
.post-mini h3{font-size:17px;line-height:1.5;margin-top:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color var(--ease);}
.post-card:hover h3{color:var(--cyan);}
.post-mini time{display:block;margin-top:12px;font-size:13px;color:var(--text-3);}
.empty-state{
  grid-column:1/-1;padding:56px 24px;text-align:center;border:1px dashed var(--line-hover);border-radius:var(--r-card);
  color:var(--text-2);font-size:15px;background:rgba(255,255,255,.02);
}
.empty-state a{display:inline-block;margin-top:14px;}

/* ============ faq ============ */
.faq-wrap{max-width:820px;}
.faq-item{
  background:var(--glass);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid var(--line);border-radius:var(--r-card);margin-bottom:12px;overflow:hidden;
  transition:border-color var(--ease);
}
.faq-item.open{border-color:var(--line-cyan);}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:20px 24px;background:transparent;border:0;text-align:left;font-size:17px;font-weight:600;color:var(--text);}
.faq-icon{flex:none;width:22px;height:22px;position:relative;}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--cyan);transition:transform 240ms ease-out,opacity 240ms ease-out;}
.faq-icon::before{left:50%;top:4px;width:1.5px;height:14px;transform:translateX(-50%);}
.faq-icon::after{top:50%;left:4px;height:1.5px;width:14px;transform:translateY(-50%);}
.faq-item.open .faq-icon::before{transform:translateX(-50%) rotate(90deg);opacity:0;}
.faq-a{max-height:0;overflow:hidden;transition:max-height 240ms ease-out;}
.faq-a p{padding:0 24px 22px;font-size:15px;color:var(--text-2);line-height:1.9;margin:0;}
@media (max-width:640px){.faq-q{padding:18px 20px;font-size:16px;}.faq-a p{padding:0 20px 20px;}}

/* ============ form ============ */
.lead-shell{
  background:rgba(255,255,255,.03);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow-card);
  padding:40px;display:grid;grid-template-columns:minmax(0,1fr);gap:36px;
}
@media (min-width:1024px){.lead-shell{grid-template-columns:1fr 1fr;padding:48px;gap:52px;align-items:start;}}
@media (max-width:640px){.lead-shell{padding:24px 20px;}}
.field{margin-bottom:18px;}
.field label{display:flex;align-items:center;gap:7px;font-size:13px;color:var(--text-2);margin-bottom:8px;letter-spacing:.02em;}
.req-dot{width:5px;height:5px;border-radius:999px;background:var(--cyan);display:inline-block;}
.field input,.field textarea{
  width:100%;background:rgba(255,255,255,.03);border:1px solid var(--line);border-radius:var(--r-btn);
  color:var(--text);font-size:15px;padding:0 15px;height:48px;transition:border-color var(--ease),box-shadow var(--ease),background var(--ease);
}
.field textarea{height:110px;padding:13px 15px;line-height:1.7;resize:vertical;}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3);}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 2px rgba(23,211,176,.22);background:rgba(255,255,255,.05);}
.form-privacy{margin-top:12px;font-size:13px;color:var(--text-3);line-height:1.7;}
.form-privacy a{color:var(--brand-light);border-bottom:1px solid rgba(125,162,255,.4);}
.form-ok{margin-top:14px;font-size:14px;color:var(--cyan);display:none;}
.form-ok.show{display:block;}

/* ============ modal ============ */
.modal{position:fixed;inset:0;z-index:100;display:flex;align-items:center;justify-content:center;padding:20px;background:rgba(4,8,16,.72);backdrop-filter:blur(6px);opacity:0;visibility:hidden;transition:opacity var(--ease),visibility var(--ease);}
.modal.open{opacity:1;visibility:visible;}
.modal-box{
  width:100%;max-width:480px;background:rgba(11,19,34,.96);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
  border:1px solid var(--line-hover);border-radius:var(--r-card);padding:28px;box-shadow:var(--shadow-pop);
  transform:translateY(12px);transition:transform 240ms ease-out;max-height:90vh;overflow-y:auto;
}
.modal.open .modal-box{transform:translateY(0);}
.modal-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:22px;}
.modal-close{width:36px;height:36px;flex:none;border:1px solid var(--line);border-radius:10px;background:transparent;color:var(--text-2);display:flex;align-items:center;justify-content:center;transition:color var(--ease),border-color var(--ease);}
.modal-close:hover{color:var(--text);border-color:var(--line-hover);}

/* ============ footer ============ */
.site-footer{border-top:1px solid var(--line);padding:64px 0 32px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:40px;}
@media (min-width:768px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:48px;}}
.footer-brand p{font-size:14px;color:var(--text-2);line-height:1.9;margin-top:16px;max-width:360px;}
.footer-title{font-size:14px;font-weight:600;color:var(--text);letter-spacing:.04em;margin-bottom:18px;}
.footer-list li{margin-bottom:12px;}
.footer-list a{font-size:14px;color:var(--text-2);transition:color var(--ease);}
.footer-list a:hover{color:var(--cyan);}
.footer-contact li{font-size:14px;color:var(--text-2);margin-bottom:12px;line-height:1.8;}
.footer-contact b{color:var(--text);font-weight:600;}
.footer-bottom{margin-top:48px;padding-top:24px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:var(--text-3);}

@media (prefers-reduced-motion: reduce){
  *{animation-duration:.001ms!important;transition-duration:.001ms!important;}
  html{scroll-behavior:auto;}
}

/* roulang page: article */
:root{
  --bg:#060B16;
  --panel-1:#0B1322;
  --panel-2:#111B2E;
  --glass:rgba(255,255,255,.04);
  --brand:#2E63F6;
  --brand-dark:#1B47C4;
  --brand-light:#7DA2FF;
  --teal:#17D3B0;
  --copper:#E3A857;
  --text:#E9EEF8;
  --text-2:#9AA9C2;
  --text-3:#66748C;
  --line:rgba(255,255,255,.08);
  --line-hover:rgba(255,255,255,.18);
  --line-teal:rgba(23,211,176,.45);
  --r-card:18px;
  --r-btn:12px;
  --r-img:16px;
  --shadow-card:0 18px 40px -24px rgba(0,0,0,.9);
  --shadow-float:0 24px 60px -20px rgba(0,0,0,.95);
  --glow:0 0 0 1px rgba(46,99,246,.55), 0 10px 30px -10px rgba(46,99,246,.65);
  --dur:200ms;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block}
a{color:inherit}
button,input,textarea{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid var(--teal);outline-offset:2px;border-radius:6px}
.shell{max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:70;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background var(--dur) ease-out,border-color var(--dur) ease-out;
}
.site-header.is-scrolled{
  background:rgba(6,11,22,.72);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:28px;height:74px}
.logo{display:inline-flex;align-items:center;gap:10px;text-decoration:none;color:var(--text);font-weight:600;font-size:17px;letter-spacing:.02em}
.logo-mark{
  width:32px;height:32px;border-radius:10px;display:grid;place-items:center;
  border:1px solid var(--line-teal);
  background:linear-gradient(140deg,rgba(46,99,246,.28),rgba(23,211,176,.12));
}
.logo-mark svg{width:17px;height:17px;fill:none;stroke:var(--teal);stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.nav-links{display:flex;align-items:center;gap:30px;margin-left:auto}
.nav-link{
  position:relative;color:var(--text-2);font-size:15px;text-decoration:none;
  padding:6px 2px;transition:color var(--dur) ease-out;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:currentColor;transform:scaleX(0);transform-origin:left;
  transition:transform var(--dur) ease-out;
}
.nav-link:hover{color:var(--text)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{
  color:var(--text);background:rgba(255,255,255,.06);
  border-radius:999px;padding:6px 14px;
}
.nav-link.active::before{
  content:"";display:inline-block;width:4px;height:4px;border-radius:50%;
  background:var(--teal);margin-right:8px;vertical-align:middle;
}
.nav-link.active::after{transform:scaleX(1);opacity:.35}
.nav-toggle{
  display:none;margin-left:auto;width:44px;height:44px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:transparent;cursor:pointer;
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
  transition:border-color var(--dur) ease-out;
}
.nav-toggle span{display:block;width:18px;height:1.5px;background:var(--text-2);transition:background var(--dur) ease-out}
.nav-toggle:hover{border-color:var(--line-hover)}
.nav-toggle:hover span{background:var(--text)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;text-decoration:none;cursor:pointer;
  border:1px solid transparent;
  transition:transform var(--dur) ease-out,box-shadow var(--dur) ease-out,
             border-color var(--dur) ease-out,background var(--dur) ease-out,color var(--dur) ease-out;
}
.btn-primary{background:linear-gradient(135deg,var(--brand),#2456DE);color:#fff;box-shadow:var(--glow)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 0 0 1px rgba(46,99,246,.8),0 14px 34px -10px rgba(46,99,246,.8)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;border-color:var(--line-hover);color:var(--text)}
.btn-ghost:hover{border-color:var(--line-teal);color:var(--teal)}
.btn-ghost:active{transform:translateY(1px)}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;height:auto;padding:0;
  color:var(--brand-light);text-decoration:underline;text-underline-offset:4px;
  font-size:15px;font-weight:600;background:none;border:0;cursor:pointer;
  transition:color var(--dur) ease-out;
}
.btn-text:hover{color:var(--teal)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.nav-cta{height:40px;padding:0 18px;font-size:14px}

/* ---------- badge ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;border:1px solid var(--line-teal);
  color:var(--teal);font-size:12px;line-height:1.4;letter-spacing:.04em;
}
.badge-copper{border-color:rgba(227,168,87,.45);color:var(--copper)}
.dot-sep{color:var(--text-3)}

/* ---------- article hero ---------- */
.article-hero{
  position:relative;overflow:hidden;
  padding:56px 0 42px;
  border-bottom:1px solid var(--line);
}
.article-hero::before{
  content:"";position:absolute;inset:0;
  background:url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  opacity:.16;pointer-events:none;
}
.article-hero > .shell{position:relative;z-index:1}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--text-3)}
.breadcrumb a{color:var(--text-2);text-decoration:none;transition:color var(--dur) ease-out}
.breadcrumb a:hover{color:var(--teal)}
.breadcrumb .current{color:var(--text-3)}
.article-title{
  margin:18px 0 14px;max-width:900px;
  font-size:clamp(26px,3.6vw,40px);line-height:1.25;font-weight:700;letter-spacing:-.01em;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:14px;color:var(--text-2)}
.meta-row .meta-strong{color:var(--text)}

/* ---------- layout ---------- */
.article-main{padding:64px 0 96px}
.article-layout{
  display:grid;grid-template-columns:minmax(0,760px) 320px;
  gap:48px;justify-content:center;align-items:start;
}
.article-panel{
  background:rgba(255,255,255,.02);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:40px 44px;
  box-shadow:var(--shadow-card);
}

/* ---------- longform ---------- */
.article-body{color:#D7DEEA;font-size:16px;line-height:1.9}
.article-body > :first-child{margin-top:0}
.article-body > p:first-of-type{font-size:17px;color:var(--text);line-height:1.9}
.article-body p{margin:0 0 1.15em}
.article-body h2{
  font-size:clamp(21px,2.8vw,28px);line-height:1.35;font-weight:600;
  margin:2.1em 0 .7em;padding-left:14px;border-left:3px solid var(--teal);
}
.article-body h3{
  font-size:20px;line-height:1.4;font-weight:600;
  margin:1.8em 0 .6em;padding-left:12px;border-left:3px solid var(--copper);
}
.article-body h4{font-size:17px;line-height:1.5;font-weight:600;margin:1.6em 0 .5em}
.article-body ul,.article-body ol{padding-left:1.35em;margin:0 0 1.2em}
.article-body li{margin:.42em 0;line-height:1.8}
.article-body blockquote{
  margin:1.6em 0;padding:16px 20px;color:var(--text-2);
  background:var(--glass);border-left:3px solid var(--brand-light);
  border-radius:0 var(--r-btn) var(--r-btn) 0;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{
  width:100%;border-radius:var(--r-img);border:1px solid var(--line);margin:1.5em 0;
}
.article-body a{color:var(--brand-light);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--teal)}
.article-body pre{
  background:var(--panel-2);border:1px solid var(--line);border-radius:var(--r-btn);
  padding:16px 18px;overflow-x:auto;font-size:14px;line-height:1.7;margin:1.4em 0;
}
.article-body code{
  background:rgba(255,255,255,.06);border-radius:6px;padding:2px 6px;font-size:14px;
}
.article-body pre code{background:none;padding:0}
.article-body table{
  width:100%;border-collapse:collapse;margin:1.5em 0;font-size:15px;
  border:1px solid var(--line);border-radius:var(--r-btn);overflow:hidden;
}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left}
.article-body th{background:var(--panel-2);color:var(--text);font-weight:600}
.article-body tr:last-child td{border-bottom:0}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2.2em 0}

/* ---------- aside ---------- */
.article-aside{position:sticky;top:96px;display:flex;flex-direction:column;gap:18px}
.aside-card{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px;backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card);
  transition:border-color var(--dur) ease-out,transform var(--dur) ease-out;
}
.aside-card:hover{border-color:var(--line-teal);transform:translateY(-2px)}
.aside-title{
  font-size:13px;color:var(--text-3);letter-spacing:.08em;
  margin:0 0 14px;font-weight:600;
}
.aside-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px}
.aside-list li{border-top:1px solid var(--line)}
.aside-list li:first-child{border-top:0}
.aside-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:12px 0;color:var(--text);text-decoration:none;font-size:15px;
  transition:color var(--dur) ease-out;
}
.aside-list a:hover{color:var(--teal)}
.aside-list .arrow{color:var(--text-3);transition:transform var(--dur) ease-out,color var(--dur) ease-out}
.aside-list a:hover .arrow{transform:translateX(3px);color:var(--teal)}
.aside-note{font-size:13px;color:var(--text-3);line-height:1.7;margin:0}

/* ---------- cta band ---------- */
.cta-band{padding:0 0 96px}
.cta-panel{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:22px;
  padding:28px 32px;border-radius:var(--r-card);
  background:var(--glass);border:1px solid var(--line);
  backdrop-filter:blur(14px);box-shadow:var(--shadow-card);
}
.cta-panel h2{margin:0 0 6px;font-size:20px;line-height:1.4;font-weight:600}
.cta-panel p{margin:0;font-size:14px;color:var(--text-2)}

/* ---------- empty state ---------- */
.empty-state{
  text-align:center;padding:56px 24px;border:1px dashed var(--line);
  border-radius:var(--r-card);background:var(--glass);
}
.empty-state p{margin:0 0 18px;color:var(--text-2);font-size:15px}

/* ---------- footer ---------- */
.site-footer{border-top:1px solid var(--line);padding:56px 0 28px;background:transparent}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:36px}
.footer-brand .logo{margin-bottom:14px}
.footer-brand p{margin:0;color:var(--text-2);font-size:14px;line-height:1.85;max-width:340px}
.footer-title{font-size:13px;letter-spacing:.08em;color:var(--text-3);margin-bottom:14px;font-weight:600}
.footer-list,.footer-contact{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
.footer-list a{color:var(--text-2);text-decoration:none;font-size:14px;transition:color var(--dur) ease-out}
.footer-list a:hover{color:var(--teal)}
.footer-contact li{color:var(--text-2);font-size:14px}
.footer-contact b{color:var(--text);font-weight:600}
.footer-bottom{
  margin-top:40px;padding-top:18px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  color:var(--text-3);font-size:13px;
}

/* ---------- drawer ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(4,8,16,.72);z-index:80;
  opacity:0;pointer-events:none;transition:opacity var(--dur) ease-out;
}
.drawer-mask.show{opacity:1;pointer-events:auto}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);z-index:90;
  background:rgba(11,19,34,.96);backdrop-filter:blur(16px);
  border-left:1px solid var(--line);padding:24px;
  transform:translateX(100%);transition:transform 240ms ease-out;
  display:flex;flex-direction:column;
}
.drawer.open{transform:translateX(0)}
.drawer a{
  display:flex;align-items:center;height:48px;color:var(--text-2);
  text-decoration:none;font-size:15px;border-bottom:1px solid var(--line);
  transition:color var(--dur) ease-out;
}
.drawer a:hover,.drawer a.active{color:var(--teal)}
.drawer-foot{margin-top:auto;padding-top:18px;border-top:1px solid var(--line);color:var(--text-3);font-size:13px;line-height:1.8}
.drawer-close{
  align-self:flex-end;width:44px;height:44px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:transparent;color:var(--text-2);
  cursor:pointer;font-size:18px;line-height:1;margin-bottom:8px;
}

@media (max-width:1024px){
  .article-layout{grid-template-columns:1fr;gap:32px}
  .article-aside{position:static}
  .article-panel{padding:32px 30px}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:900px){
  .nav-links,.nav-cta{display:none}
  .nav-toggle{display:flex}
}
@media (max-width:640px){
  .shell{padding:0 20px}
  .header-inner{height:66px}
  .article-hero{padding:36px 0 32px}
  .article-main{padding:44px 0 72px}
  .article-panel{padding:24px 20px}
  .article-body{font-size:16px}
  .cta-band{padding-bottom:72px}
  .cta-panel{padding:22px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}

/* roulang page: category1 */
:root{
  --bg:#060B16;
  --panel-1:#0B1322;
  --panel-2:#111B2E;
  --glass:rgba(255,255,255,0.04);
  --brand:#2E63F6;
  --brand-dark:#1B47C4;
  --brand-light:#7DA2FF;
  --cyan:#17D3B0;
  --copper:#E3A857;
  --text:#E9EEF8;
  --text-2:#9AA9C2;
  --text-3:#66748C;
  --line:rgba(255,255,255,0.08);
  --line-hover:rgba(255,255,255,0.18);
  --line-cyan:rgba(23,211,176,0.45);
  --radius-card:18px;
  --radius-btn:12px;
  --radius-media:16px;
  --shadow-card:0 18px 40px -24px rgba(0,0,0,0.9);
  --shadow-float:0 24px 60px -20px rgba(0,0,0,0.95);
  --shadow-glow:0 0 0 1px rgba(46,99,246,0.55),0 10px 30px -10px rgba(46,99,246,0.65);
  --ease:200ms ease-out;
  --font:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  min-height:100%;
  background-color:var(--bg);
  background-image:
    radial-gradient(60% 42% at 82% -8%,rgba(46,99,246,0.16),transparent 62%),
    radial-gradient(48% 38% at 0% 8%,rgba(23,211,176,0.08),transparent 60%);
  background-repeat:no-repeat;
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;transition:color var(--ease),border-color var(--ease),opacity var(--ease);}
button{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4{margin:0;color:var(--text);font-weight:600;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
::selection{background:rgba(46,99,246,0.42);color:#fff;}
a:focus-visible,button:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:6px;}

.shell{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  border-bottom:1px solid transparent;
  transition:background var(--ease),border-color var(--ease),backdrop-filter var(--ease);
}
.site-header.is-scrolled{
  background:rgba(6,11,22,0.72);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:76px;}
.logo{display:inline-flex;align-items:center;gap:10px;}
.logo-mark{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  background:linear-gradient(135deg,rgba(46,99,246,0.92),rgba(23,211,176,0.6));
  border:1px solid var(--line);box-shadow:var(--shadow-card);
}
.logo-mark svg{width:18px;height:18px;fill:none;stroke:#fff;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;}
.logo-text{font-size:17px;font-weight:700;letter-spacing:0.01em;color:var(--text);}
.nav-links{display:flex;align-items:center;gap:32px;}
.nav-link{position:relative;font-size:15px;color:var(--text-2);padding:6px 2px;}
.nav-link::after{
  content:'';position:absolute;left:0;right:0;bottom:0;height:1px;background:currentColor;
  transform:scaleX(0);transform-origin:left;transition:transform var(--ease);
}
.nav-link:hover{color:var(--text);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:var(--text);}
.nav-link.active::after{transform:scaleX(1);}
.nav-link.active::before{
  content:'';position:absolute;left:-12px;top:50%;width:4px;height:4px;border-radius:50%;
  background:var(--cyan);transform:translateY(-50%);
}
.header-right{display:flex;align-items:center;gap:14px;}
.menu-toggle{
  display:none;width:44px;height:44px;border-radius:var(--radius-btn);
  background:transparent;border:1px solid var(--line-hover);cursor:pointer;
  align-items:center;justify-content:center;flex-direction:column;gap:4px;padding:0;
}
.menu-toggle span{display:block;width:18px;height:1.5px;background:var(--text);border-radius:2px;transition:transform var(--ease),opacity var(--ease);}
.menu-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(5.5px) rotate(45deg);}
.menu-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.menu-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-5.5px) rotate(-45deg);}
.mobile-drawer{
  display:none;border-top:1px solid var(--line);
  background:rgba(11,19,34,0.94);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
}
.mobile-drawer.open{display:block;}
.drawer-link{
  display:flex;align-items:center;height:48px;padding:0 24px;font-size:15px;color:var(--text-2);
  border-bottom:1px solid var(--line);
}
.drawer-link.active{color:var(--text);}
.drawer-link.active::before{content:'';width:4px;height:4px;border-radius:50%;background:var(--cyan);margin-right:10px;}
.drawer-foot{padding:16px 24px 22px;font-size:13px;line-height:1.8;color:var(--text-3);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease),background var(--ease),color var(--ease);
}
.btn-primary{
  background:linear-gradient(135deg,#2E63F6,#2456DE);color:#fff;
  box-shadow:var(--shadow-glow);
}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 0 0 1px rgba(46,99,246,0.72),0 16px 34px -12px rgba(46,99,246,0.8);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{border-color:var(--line-hover);color:var(--text);background:transparent;}
.btn-ghost:hover{border-color:var(--line-cyan);}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;height:44px;
  color:var(--brand-light);font-size:15px;font-weight:600;
  border-bottom:1px solid rgba(125,162,255,0.4);padding:0 2px;
}
.btn-text:hover{color:#fff;border-bottom-color:var(--cyan);}
.text-link{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--brand-light);
  border-bottom:1px solid rgba(125,162,255,0.35);padding-bottom:1px;
}
.text-link:hover{color:#fff;border-bottom-color:var(--cyan);}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border-radius:999px;
  border:1px solid var(--line);background:rgba(255,255,255,0.02);
  font-size:13px;line-height:1.4;color:var(--text-2);
}
.badge b{color:var(--copper);font-weight:600;font-variant-numeric:tabular-nums;}
.badge-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:0.08em;
  color:var(--cyan);margin-bottom:16px;
}
.eyebrow::before{content:'';width:18px;height:1px;background:var(--cyan);}

/* ---------- 板块 ---------- */
.section{padding:96px 0;}
.section-head{max-width:780px;margin-bottom:48px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-head.center .eyebrow{justify-content:center;}
.section-label{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:0.08em;
  color:var(--cyan);margin-bottom:14px;
}
.section-label::before{content:'';width:18px;height:1px;background:var(--cyan);}
.section-head h2{font-size:clamp(24px,3.2vw,34px);line-height:1.3;}
.section-desc{margin-top:14px;color:var(--text-2);font-size:15px;max-width:640px;}
.section-head.center .section-desc{margin-left:auto;margin-right:auto;}

/* ---------- Hero ---------- */
.hero{padding:88px 0 72px;}
.hero h1{font-size:clamp(28px,3.8vw,44px);line-height:1.16;letter-spacing:-0.01em;}
.hero-sub{margin-top:20px;font-size:17px;line-height:1.8;color:var(--text-2);max-width:460px;}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:18px;margin-top:32px;}
.media-frame{
  border-radius:var(--radius-media);border:1px solid var(--line);overflow:hidden;
  background:linear-gradient(135deg,rgba(46,99,246,0.08),rgba(23,211,176,0.06));
  box-shadow:var(--shadow-card);
}
.media-frame img{width:100%;height:100%;object-fit:cover;}
.hero-media{height:420px;}

/* ---------- 粘性说明栏 ---------- */
.sticky-note{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px;position:relative;box-shadow:var(--shadow-card);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
}
.sticky-note::before{
  content:'';position:absolute;left:26px;top:0;width:32px;height:1px;background:var(--cyan);
}
.sticky-note h2{font-size:22px;line-height:1.4;margin-bottom:14px;}
.sticky-note p{font-size:15px;color:var(--text-2);}
.note-list{margin-top:20px;display:grid;gap:12px;}
.note-list li{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--text-2);}
.note-list li::before{
  content:'';flex:0 0 auto;width:6px;height:6px;border-radius:50%;margin-top:9px;
  background:var(--cyan);opacity:0.85;
}
.sticky-wrap{position:sticky;top:108px;}

/* ---------- 编号条目流 ---------- */
.entry-list{border-top:1px solid var(--line);}
.entry-item{
  display:flex;gap:24px;padding:26px 0;border-bottom:1px solid var(--line);
  transition:border-color var(--ease);
}
.entry-item:hover{border-color:var(--line-hover);}
.entry-num{
  flex:0 0 40px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;
  font-size:14px;letter-spacing:0.08em;color:var(--copper);
  font-variant-numeric:tabular-nums;padding-top:5px;
}
.entry-body h3{font-size:19px;line-height:1.45;margin-bottom:8px;}
.entry-body p{font-size:15px;color:var(--text-2);margin-bottom:12px;max-width:620px;}
.entry-item:hover .entry-body h3{color:#fff;}

/* ---------- 步骤条 ---------- */
.step-item{position:relative;padding:0 0 28px 26px;border-left:1px solid var(--line);}
.step-item:last-child{border-left-color:transparent;padding-bottom:0;}
.step-dot{
  position:absolute;left:-5px;top:6px;width:9px;height:9px;border-radius:50%;
  background:var(--brand);box-shadow:0 0 0 4px rgba(46,99,246,0.16);
}
.step-mark{
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:12px;letter-spacing:0.1em;
  color:var(--copper);font-variant-numeric:tabular-nums;
}
.step-item h3{font-size:18px;margin:6px 0 8px;}
.step-item p{font-size:15px;color:var(--text-2);max-width:520px;}

/* ---------- 信息行 ---------- */
.info-list{border-top:1px solid var(--line);}
.info-row{
  display:grid;grid-template-columns:44px minmax(0,1fr) auto;gap:22px;align-items:center;
  padding:24px 0;border-bottom:1px solid var(--line);transition:border-color var(--ease);
}
.info-row:hover{border-color:var(--line-hover);}
.info-icon{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  border:1px solid var(--line);background:rgba(255,255,255,0.03);
}
.info-icon svg{width:20px;height:20px;fill:none;stroke:var(--cyan);stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;}
.info-row h3{font-size:17px;margin-bottom:6px;}
.info-row p{font-size:14px;color:var(--text-2);max-width:620px;}

/* ---------- FAQ ---------- */
.faq-list{max-width:820px;margin:0 auto;display:grid;gap:12px;}
.faq-item{
  border:1px solid var(--line);border-radius:var(--radius-card);background:var(--glass);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  overflow:hidden;transition:border-color var(--ease);
}
.faq-item:hover{border-color:var(--line-hover);}
.faq-item.open{border-color:var(--line-cyan);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;background:transparent;border:0;color:var(--text);
  font-size:17px;font-weight:600;line-height:1.5;text-align:left;cursor:pointer;
}
.faq-icon{
  flex:0 0 auto;width:22px;height:22px;display:grid;place-items:center;
  font-size:18px;font-weight:400;color:var(--cyan);transition:transform var(--ease);
}
.faq-item.open .faq-icon{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height 240ms ease-out;}
.faq-a-inner{padding:0 24px 22px;font-size:15px;line-height:1.9;color:var(--text-2);}

/* ---------- CTA ---------- */
.cta-band{
  display:flex;align-items:center;justify-content:space-between;gap:30px;
  padding:34px 36px;border-radius:var(--radius-card);border:1px solid var(--line);
  background:linear-gradient(120deg,rgba(46,99,246,0.14),rgba(23,211,176,0.06));
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  box-shadow:var(--shadow-float);
}
.cta-band h2{font-size:clamp(20px,2.4vw,26px);line-height:1.4;}
.cta-band p{margin-top:10px;font-size:14px;color:var(--text-2);}

/* ---------- 页脚 ---------- */
.site-footer{border-top:1px solid var(--line);padding:64px 0 28px;margin-top:24px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:42px;}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.9;color:var(--text-2);max-width:420px;}
.footer-title{font-size:14px;font-weight:600;color:var(--text);margin-bottom:16px;}
.footer-list li{margin-bottom:12px;}
.footer-list a{font-size:14px;color:var(--text-2);}
.footer-list a:hover{color:var(--cyan);}
.footer-contact li{font-size:14px;color:var(--text-2);margin-bottom:12px;}
.footer-contact b{color:var(--text);font-weight:600;}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:44px;padding-top:24px;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums;
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .section{padding:80px 0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .sticky-wrap{position:static;top:auto;}
  .hero-media{height:340px;}
}
@media (max-width:768px){
  .shell{padding:0 20px;}
  .nav-links{display:none;}
  .menu-toggle{display:flex;}
  .header-cta{display:none;}
  .section{padding:64px 0;}
  .section-head{margin-bottom:34px;}
  .hero{padding:56px 0 44px;}
  .hero-media{height:220px;}
  .hero-sub{max-width:none;}
  .entry-item{gap:16px;padding:22px 0;}
  .entry-num{flex-basis:30px;}
  .info-row{grid-template-columns:44px minmax(0,1fr);gap:16px;}
  .info-row .row-action{grid-column:2;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:26px 22px;}
  .footer-grid{grid-template-columns:1fr;}
  .faq-q{padding:18px 20px;font-size:16px;}
  .faq-a-inner{padding:0 20px 20px;}
}
@media (max-width:520px){
  .hero h1{font-size:26px;}
  .badge{font-size:12px;padding:7px 12px;}
  .btn{width:100%;}
  .hero-actions{flex-direction:column;align-items:stretch;gap:12px;}
  .btn-text{justify-content:center;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
}

/* roulang page: category2 */
:root{
  --bg:#060B16;
  --panel-1:#0B1322;
  --panel-2:#111B2E;
  --glass:rgba(255,255,255,.04);
  --brand:#2E63F6;
  --brand-deep:#1B47C4;
  --brand-light:#7DA2FF;
  --cyan:#17D3B0;
  --copper:#E3A857;
  --text:#E9EEF8;
  --text-2:#9AA9C2;
  --text-3:#66748C;
  --line:rgba(255,255,255,.08);
  --line-hover:rgba(255,255,255,.18);
  --line-accent:rgba(23,211,176,.45);
  --r-card:18px;
  --r-btn:12px;
  --r-media:16px;
  --r-pill:999px;
  --sh-card:0 18px 40px -24px rgba(0,0,0,.9);
  --sh-float:0 24px 60px -20px rgba(0,0,0,.95);
  --sh-glow:0 0 0 1px rgba(46,99,246,.55),0 10px 30px -10px rgba(46,99,246,.65);
  --ease:200ms ease-out;
  --gutter:24px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
body.modal-open,body.drawer-open{overflow:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:6px}
::selection{background:rgba(46,99,246,.4)}
.shell{width:100%;max-width:1200px;margin:0 auto;padding:0 var(--gutter)}
.narrow{max-width:760px;margin:0 auto}
.section{padding:104px 0}
.section-head{max-width:720px;margin:0 0 56px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-head h2{font-size:clamp(24px,3.4vw,36px);line-height:1.25;font-weight:600;margin:0 0 14px}
.section-head p{margin:0;color:var(--text-2)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.04em;line-height:1.4;color:var(--cyan);
  border:1px solid var(--line-accent);border-radius:var(--r-pill);
  padding:6px 14px;background:rgba(23,211,176,.06);
}
/* 导航 */
.site-header{position:sticky;top:0;z-index:60;background:transparent;transition:background-color var(--ease),border-color var(--ease)}
.site-header.is-scrolled{background:rgba(6,11,22,.72);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:72px}
.logo{display:inline-flex;align-items:center;gap:10px;font-weight:700;letter-spacing:.02em}
.logo-mark{
  width:32px;height:32px;flex:none;display:grid;place-items:center;border-radius:10px;
  border:1px solid var(--line);
  background:linear-gradient(140deg,rgba(46,99,246,.38),rgba(23,211,176,.18));
}
.logo-mark svg{width:18px;height:18px;fill:none;stroke:#E9EEF8;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.logo-text{font-size:17px;line-height:1}
.nav-links{display:flex;align-items:center;gap:32px}
.nav-link{position:relative;font-size:15px;color:var(--text-2);padding:6px 0;transition:color var(--ease)}
.nav-link::after{content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform var(--ease)}
.nav-link:hover{color:var(--text)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:var(--text)}
.nav-link.active::after{transform:scaleX(1)}
.nav-link.active::before{content:"";position:absolute;left:-13px;top:50%;width:4px;height:4px;margin-top:-2px;border-radius:50%;background:var(--cyan)}
.nav-actions{display:flex;align-items:center;gap:14px}
.nav-toggle{display:none;position:relative;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-btn);background:transparent;cursor:pointer;transition:border-color var(--ease)}
.nav-toggle:hover{border-color:var(--line-accent)}
.nav-toggle span{position:absolute;left:13px;right:13px;height:1.5px;background:var(--text);transition:transform var(--ease),opacity var(--ease)}
.nav-toggle span:nth-child(1){top:18px}
.nav-toggle span:nth-child(2){top:25px}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(3.5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){transform:translateY(-3.5px) rotate(-45deg)}
.mobile-drawer{display:none}
/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease),background-color var(--ease),color var(--ease);
}
.btn-primary{background:linear-gradient(180deg,#3A6DF8,#2456DE);color:#fff;box-shadow:var(--sh-glow)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 0 0 1px rgba(46,99,246,.7),0 14px 34px -10px rgba(46,99,246,.78)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;border-color:var(--line-hover);color:var(--text)}
.btn-ghost:hover{border-color:var(--line-accent);color:#fff}
/* 面包屑 */
.breadcrumb-bar{padding:22px 0 0}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--text-3)}
.breadcrumb a{color:var(--text-2);transition:color var(--ease)}
.breadcrumb a:hover{color:var(--cyan)}
.breadcrumb .sep{color:var(--text-3)}
/* Hero */
.hero{position:relative;overflow:hidden;padding:84px 0 88px;border-bottom:1px solid var(--line)}
.hero-bg{position:absolute;inset:0;background-image:url(/assets/images/backpic/back-2.webp);background-size:cover;background-position:center;opacity:.18}
.hero-mesh{
  position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:radial-gradient(circle at 50% 35%,#000 18%,transparent 76%);
  mask-image:radial-gradient(circle at 50% 35%,#000 18%,transparent 76%);
}
.hero-glow{position:absolute;inset:0;background:radial-gradient(620px 320px at 50% 0%,rgba(46,99,246,.22),transparent 70%)}
.hero-inner{position:relative;z-index:1;max-width:760px;margin:0 auto;text-align:center}
.hero h1{font-size:clamp(30px,5vw,54px);line-height:1.15;font-weight:700;margin:20px 0 0;letter-spacing:.01em}
.hero-sub{color:var(--text-2);font-size:17px;margin:18px 0 32px}
.hero-badges{list-style:none;display:flex;flex-wrap:wrap;justify-content:center;gap:12px;padding:0;margin:40px 0 0}
.hero-badges li{
  border:1px solid var(--line);border-radius:var(--r-pill);
  padding:6px 16px;font-size:13px;color:var(--text-2);
  background:var(--glass);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
}
/* 交替图文 */
.alt-rows{display:flex;flex-direction:column;gap:88px}
.alt-row{display:grid;grid-template-columns:1.05fr 1fr;gap:48px;align-items:center}
.alt-row.reverse .alt-media{order:2}
.alt-media{position:relative;border-radius:var(--r-media);overflow:hidden;border:1px solid var(--line);background:linear-gradient(140deg,rgba(46,99,246,.10),rgba(23,211,176,.07))}
.alt-media img{width:100%;height:320px;object-fit:cover;transition:transform 420ms ease-out}
.alt-row:hover .alt-media img{transform:scale(1.02)}
.step-mark{
  position:absolute;left:16px;top:16px;
  font-size:13px;font-variant-numeric:tabular-nums;letter-spacing:.08em;color:var(--copper);
  background:rgba(6,11,22,.72);border:1px solid rgba(227,168,87,.42);
  border-radius:var(--r-pill);padding:4px 12px;
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
}
.alt-body h3{font-size:20px;line-height:1.4;font-weight:600;margin:0 0 12px}
.alt-body p{margin:0;color:var(--text-2)}
/* 对比清单 */
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.compare-panel{
  border:1px solid var(--line);border-radius:var(--r-card);background:var(--glass);
  padding:28px;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  transition:border-color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.compare-panel:hover{border-color:var(--line-accent);transform:translateY(-3px);box-shadow:var(--sh-card)}
.compare-panel-accent{border-color:rgba(227,168,87,.28)}
.compare-panel-accent:hover{border-color:rgba(227,168,87,.5)}
.compare-tag{
  display:inline-block;font-size:12px;letter-spacing:.04em;line-height:1.4;
  padding:4px 12px;border-radius:var(--r-pill);
  border:1px solid rgba(23,211,176,.4);color:var(--cyan);margin-bottom:16px;
}
.compare-panel-accent .compare-tag{border-color:rgba(227,168,87,.45);color:var(--copper)}
.compare-panel h3{margin:0 0 18px;font-size:19px;line-height:1.45;font-weight:600}
.dot-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:12px}
.dot-list li{position:relative;padding-left:18px;color:var(--text-2);font-size:15px}
.dot-list li::before{content:"";position:absolute;left:0;top:.78em;width:6px;height:6px;border-radius:50%;background:var(--cyan)}
.compare-panel-accent .dot-list li::before{background:var(--copper)}
/* 数据 */
.stats{
  position:relative;overflow:hidden;
  border:1px solid var(--line);border-radius:var(--r-card);background:var(--glass);
  padding:36px 28px;display:grid;grid-template-columns:repeat(4,1fr);gap:8px;
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.stats::before{content:"";position:absolute;left:0;right:0;top:0;height:1px;background:linear-gradient(90deg,transparent,rgba(23,211,176,.5),transparent)}
.stats > div{padding:0 20px;border-left:1px solid var(--line)}
.stats > div:first-child{border-left:0;padding-left:0}
.stat-num{font-size:clamp(28px,4vw,42px);font-weight:700;line-height:1.1;color:var(--copper);font-variant-numeric:tabular-nums}
.stat-num small{font-size:14px;font-weight:500;color:var(--text-3);margin-left:6px}
.stat-label{margin-top:10px;font-size:14px;color:var(--text-2)}
/* FAQ */
.faq-list{max-width:820px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.faq-item{
  border:1px solid var(--line);border-radius:var(--r-card);background:var(--glass);
  overflow:hidden;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  transition:border-color var(--ease);
}
.faq-item:hover,.faq-item.open{border-color:var(--line-accent)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:none;border:0;padding:20px 24px;text-align:left;
  font-size:17px;line-height:1.5;font-weight:600;cursor:pointer;
}
.faq-icon{position:relative;flex:none;width:20px;height:20px}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--cyan);transition:transform var(--ease),opacity var(--ease)}
.faq-icon::before{left:0;right:0;top:9px;height:1.5px}
.faq-icon::after{top:0;bottom:0;left:9px;width:1.5px}
.faq-item.open .faq-icon::after{transform:scaleY(0);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height 240ms ease-out}
.faq-a p{margin:0;padding:0 24px 22px;color:var(--text-2);font-size:15px;line-height:1.9}
/* CTA */
.cta-band{
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  border:1px solid var(--line);border-radius:var(--r-card);
  background:linear-gradient(120deg,rgba(46,99,246,.15),rgba(23,211,176,.06));
  padding:36px 40px;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.cta-band h2{margin:0;font-size:clamp(22px,3vw,30px);line-height:1.3;font-weight:600}
.cta-band p{margin:12px 0 0;color:var(--text-2);max-width:560px}
.cta-note{margin-top:14px;font-size:13px;color:var(--text-3)}
.cta-note a{color:var(--brand-light);text-decoration:underline;text-underline-offset:3px}
/* 表单 */
.field{margin-bottom:18px}
.field label{display:block;font-size:13px;color:var(--text-2);margin-bottom:8px}
.field .req::after{content:"";display:inline-block;width:5px;height:5px;border-radius:50%;background:var(--cyan);margin-left:6px;vertical-align:middle}
.field input,.field textarea{
  width:100%;background:rgba(255,255,255,.03);border:1px solid var(--line);
  border-radius:var(--r-btn);color:var(--text);font-size:15px;font-family:inherit;
  height:48px;padding:0 16px;transition:border-color var(--ease),box-shadow var(--ease);
}
.field textarea{height:auto;min-height:112px;padding:14px 16px;line-height:1.7;resize:vertical}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--line-accent);box-shadow:0 0 0 2px rgba(23,211,176,.18)}
.form-tip{margin-top:12px;font-size:13px;color:var(--cyan);min-height:20px}
.privacy{margin-top:14px;font-size:13px;color:var(--text-3)}
.privacy a{color:var(--brand-light);text-decoration:underline;text-underline-offset:3px}
/* 弹层 */
.modal{position:fixed;inset:0;z-index:90;display:none}
.modal.open{display:block}
.modal-mask{position:absolute;inset:0;background:rgba(4,8,16,.72);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px)}
.modal-panel{
  position:relative;z-index:1;max-width:520px;margin:8vh auto;
  background:linear-gradient(160deg,rgba(17,27,46,.98),rgba(11,19,34,.98));
  border:1px solid var(--line-hover);border-radius:var(--r-card);
  box-shadow:var(--sh-float);padding:32px;
  max-height:84vh;overflow:auto;
}
.modal-panel h2{margin:0 0 8px;font-size:22px;font-weight:600}
.modal-panel > p{margin:0 0 22px;color:var(--text-2);font-size:14px}
.modal-close{
  position:absolute;right:14px;top:14px;width:36px;height:36px;
  border-radius:10px;border:1px solid var(--line);background:transparent;
  color:var(--text-2);font-size:18px;line-height:1;cursor:pointer;
  transition:border-color var(--ease),color var(--ease);
}
.modal-close:hover{border-color:var(--line-accent);color:#fff}
/* 页脚 */
.site-footer{border-top:1px solid var(--line);padding:64px 0 32px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:40px}
.footer-brand .logo{margin-bottom:16px}
.footer-brand p{margin:0;max-width:340px;color:var(--text-2);font-size:14px}
.footer-title{font-size:13px;letter-spacing:.08em;color:var(--text-3);margin-bottom:16px}
.footer-list,.footer-contact{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px;font-size:14px}
.footer-list a{color:var(--text-2);transition:color var(--ease)}
.footer-list a:hover{color:var(--cyan)}
.footer-contact li{color:var(--text-2)}
.footer-contact b{color:var(--text);font-weight:600}
.footer-bottom{
  margin-top:48px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}
/* 响应式 */
@media (max-width:1024px){
  :root{--gutter:20px}
  .section{padding:80px 0}
  .alt-rows{gap:72px}
  .alt-row{gap:36px}
  .alt-media img{height:280px}
  .stats{grid-template-columns:repeat(2,1fr);gap:28px 0}
  .stats > div:nth-child(3){border-left:0;padding-left:0}
}
@media (max-width:900px){
  .nav-links{display:none}
  .nav-actions .btn-ghost{display:none}
  .nav-toggle{display:block}
  .mobile-drawer{
    display:block;position:fixed;left:0;right:0;top:72px;z-index:59;
    background:rgba(11,19,34,.96);border-top:1px solid var(--line);border-bottom:1px solid var(--line);
    padding:8px 20px 22px;
    opacity:0;transform:translateY(-12px);pointer-events:none;
    transition:opacity var(--ease),transform var(--ease);
    backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  }
  .mobile-drawer.open{opacity:1;transform:translateY(0);pointer-events:auto}
  .drawer-link{
    display:flex;align-items:center;min-height:48px;
    font-size:16px;color:var(--text-2);border-bottom:1px solid var(--line);
    transition:color var(--ease);
  }
  .drawer-link:hover{color:var(--text)}
  .drawer-link.active{color:var(--text)}
  .drawer-link.active::before{content:"";width:4px;height:4px;border-radius:50%;background:var(--cyan);margin-right:10px}
  .drawer-foot{margin-top:20px;display:flex;flex-direction:column;gap:12px}
  .drawer-foot span{font-size:13px;color:var(--text-3)}
}
@media (max-width:768px){
  .section{padding:64px 0}
  .hero{padding:56px 0 64px}
  .hero h1{font-size:clamp(26px,7vw,34px)}
  .hero-sub{font-size:16px}
  .alt-rows{gap:56px}
  .alt-row,.alt-row.reverse{grid-template-columns:1fr;gap:20px}
  .alt-row.reverse .alt-media{order:0}
  .alt-media img{height:220px}
  .compare-grid{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr;gap:0;padding:26px 22px}
  .stats > div{border-left:0;padding:16px 0;border-top:1px solid var(--line)}
  .stats > div:first-child{border-top:0;padding-top:0}
  .stats > div:last-child{padding-bottom:0}
  .cta-band{padding:26px 22px}
  .cta-band .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;gap:8px}
  .modal-panel{margin:5vh 16px;padding:24px;max-height:90vh}
  .breadcrumb-bar{padding:16px 0 0}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important}
  html{scroll-behavior:auto}
}