/* roulang page: index */
:root{
  --bg:#0E0B16;
  --bg-soft:#120E1E;
  --surface:#181327;
  --surface-2:#221B36;
  --surface-3:#2B2340;
  --primary:#FF7A2F;
  --primary-2:#FF9A3C;
  --secondary:#FF3D71;
  --neon:#26E0C8;
  --gold:#FFC53D;
  --text:#F4F1FF;
  --text-2:#ADA5C4;
  --text-3:#6F6788;
  --success:#3ED598;
  --warn:#FFB020;
  --border:rgba(255,255,255,.08);
  --border-hover:rgba(255,122,47,.45);
  --grad:linear-gradient(135deg,#FF9A3C 0%,#FF3D71 100%);
  --grad-soft:linear-gradient(180deg,#1C1630 0%,#120E1E 100%);
  --r-lg:22px;
  --r-md:16px;
  --r-sm:10px;
  --shadow:0 18px 40px -20px rgba(0,0,0,.8);
  --shadow-hover:0 26px 60px -22px rgba(255,61,113,.35);
  --container:1200px;
  --mono:"DIN Alternate","Barlow","Roboto Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.nav-locked{overflow:hidden}
img{max-width:100%;display:block;border:0}
a{color:var(--neon);text-decoration:none;transition:color .18s ease-out,opacity .18s ease-out}
a:hover{color:#fff}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--neon);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.grid-margin-x{margin-left:-12px;margin-right:-12px}
.grid-margin-x>.cell{padding-left:12px;padding-right:12px}
.grid-margin-y{margin-top:-24px}
.grid-margin-y>.cell{margin-top:24px}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(14,11,22,.82);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:background .22s ease-out,border-color .22s ease-out;
}
.site-header.is-scrolled{background:rgba(14,11,22,.94);border-bottom-color:var(--border)}
.site-header.is-scrolled::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
  background:linear-gradient(90deg,rgba(255,122,47,.6),rgba(255,61,113,.6));
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:74px}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);flex:0 0 auto}
.brand:hover{color:var(--text)}
.brand-mark{
  width:32px;height:32px;border-radius:9px;flex:0 0 auto;
  background:var(--grad);
  box-shadow:0 0 0 1px rgba(255,255,255,.18) inset,0 8px 20px -10px rgba(255,61,113,.9);
  position:relative;
}
.brand-mark::after{
  content:"";position:absolute;inset:9px;border-radius:4px;
  background:var(--bg);opacity:.85;
}
.brand-name{font-size:19px;font-weight:700;letter-spacing:-.4px;white-space:nowrap}
.main-nav ul{display:flex;align-items:center;gap:6px}
.main-nav a{
  position:relative;display:block;padding:10px 14px;border-radius:var(--r-sm);
  color:var(--text-2);font-size:15px;font-weight:500;white-space:nowrap;
  transition:color .18s ease-out;
}
.main-nav a::after{
  content:"";position:absolute;left:50%;bottom:2px;width:0;height:2px;
  background:var(--neon);transform:translateX(-50%);
  transition:width .22s ease-out;border-radius:2px;
}
.main-nav a:hover{color:var(--text)}
.main-nav a:hover::after{width:60%}
.main-nav a.active{color:var(--text);text-shadow:0 0 12px rgba(38,224,200,.55)}
.main-nav a.active::after{width:60%;background:var(--grad)}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-sm);
  background:transparent;border:1px solid var(--border);
  padding:0;cursor:pointer;align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.nav-toggle span{display:block;width:20px;height:2px;border-radius:2px;background:var(--neon);box-shadow:0 0 8px rgba(38,224,200,.7);transition:transform .22s ease-out,opacity .22s ease-out}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  border:1px solid transparent;
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out,color .18s ease-out,background .18s ease-out;
}
.btn-primary{
  background:var(--grad);color:#fff;
  box-shadow:0 10px 24px -10px rgba(255,61,113,.6),inset 0 1px 0 rgba(255,255,255,.28);
}
.btn-primary:hover{transform:translateY(-2px);color:#fff;box-shadow:0 16px 34px -12px rgba(255,61,113,.85),inset 0 1px 0 rgba(255,255,255,.35)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.18);color:var(--text)}
.btn-ghost:hover{border-color:var(--primary);color:#fff;transform:translateY(-2px)}
.btn-text{color:var(--neon);padding:0;min-height:auto;font-weight:600}
.btn-text i{transition:transform .18s ease-out}
.btn-text:hover{color:#fff}
.btn-text:hover i{transform:translateX(3px)}
.btn-block{width:100%}

/* ---------- 板块 ---------- */
.section{padding:88px 0;position:relative}
.section-alt{background:linear-gradient(180deg,#141025 0%,#0E0B16 100%)}
.section-divide{border-top:1px solid rgba(255,255,255,.06)}
.section-head{margin-bottom:44px;max-width:820px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;margin-bottom:14px;
  font-size:13px;font-weight:600;letter-spacing:.6px;color:var(--neon);
  padding:6px 12px;border-radius:999px;border:1px solid rgba(38,224,200,.35);background:rgba(38,224,200,.08);
}
.section-title{
  position:relative;padding-left:16px;
  font-size:clamp(22px,3vw,32px);font-weight:700;letter-spacing:-.4px;line-height:1.4;
}
.section-title::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:4px;background:var(--grad);
}
.section-sub{margin-top:14px;color:var(--text-2);font-size:15.5px;line-height:1.85;max-width:760px}
.title-line{display:block;width:40px;height:3px;border-radius:3px;background:var(--grad);margin-top:16px}

/* ---------- 首屏 ---------- */
.hero{position:relative;isolation:isolate;overflow:hidden}
.hero-bg{
  position:absolute;inset:0;z-index:-2;
  background-image:url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(14,11,22,.95) 0%,rgba(14,11,22,.82) 42%,rgba(14,11,22,.42) 100%);
}
.hero-glow{
  position:absolute;z-index:-1;width:720px;height:720px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,61,113,.20) 0%,rgba(255,61,113,0) 68%);
  top:-260px;right:-180px;pointer-events:none;
}
.hero-inner{padding:96px 0 76px;max-width:780px}
.hero-tag{
  display:inline-flex;align-items:center;gap:10px;margin-bottom:22px;
  padding:8px 16px;border-radius:999px;font-size:13px;font-weight:600;color:var(--text);
  border:1px solid rgba(255,122,47,.45);background:rgba(255,122,47,.10);
}
.hero-tag i{color:var(--neon)}
.hero h1{
  font-size:clamp(30px,5vw,52px);font-weight:800;letter-spacing:-.5px;line-height:1.24;
  margin-bottom:24px;
}
.hero h1 em{
  font-style:normal;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-lead{font-size:17px;line-height:1.9;color:var(--text-2);max-width:660px;margin-bottom:34px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:44px}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  border-radius:var(--r-md);border:1px solid var(--border);
  background:rgba(24,19,39,.72);backdrop-filter:blur(6px);overflow:hidden;
}
.hero-stat{padding:20px 22px;position:relative}
.hero-stat+.hero-stat::before{content:"";position:absolute;left:0;top:18%;bottom:18%;width:1px;background:rgba(255,255,255,.10)}
.hero-stat b{display:block;font-family:var(--mono);font-size:26px;font-weight:700;line-height:1.2;letter-spacing:-.5px;background:linear-gradient(135deg,#FFC53D,#FF3D71);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-stat span{display:block;margin-top:6px;font-size:13px;color:var(--text-3)}

/* ---------- 对比矩阵 ---------- */
.matrix-wrap{overflow-x:auto;border-radius:var(--r-lg);border:1px solid var(--border);background:var(--grad-soft);box-shadow:var(--shadow)}
.matrix{width:100%;min-width:720px;border-collapse:collapse}
.matrix th,.matrix td{padding:18px 20px;text-align:left;border-bottom:1px solid rgba(255,255,255,.06);font-size:15px;vertical-align:middle}
.matrix thead th{
  position:sticky;top:0;z-index:2;
  background:#1B1530;font-size:14px;font-weight:700;color:var(--text);white-space:nowrap;
}
.matrix thead th:first-child{color:var(--text-2);font-weight:600}
.matrix tbody tr:last-child td{border-bottom:0}
.matrix tbody tr:hover td{background:rgba(255,122,47,.05)}
.matrix td:first-child{color:var(--text-2);font-size:14.5px}
.matrix .col-hi{background:rgba(255,122,47,.06);position:relative}
.matrix thead th.col-hi::before{content:"";position:absolute;left:0;right:0;top:0;height:2px;background:var(--grad)}
.matrix .val{display:inline-flex;align-items:center;gap:8px;font-size:14.5px}
.matrix .val i{color:var(--neon)}
.matrix .val.no{color:var(--text-3)}
.matrix .val.no i{color:var(--text-3)}
.matrix .val strong{font-family:var(--mono);font-size:19px;font-weight:700;color:var(--gold)}
.level-chip{
  display:inline-flex;align-items:center;gap:8px;padding:5px 12px;border-radius:999px;
  font-size:13px;font-weight:600;border:1px solid var(--border);color:var(--text-2);background:rgba(255,255,255,.04);
}
.level-chip.gold{border-color:rgba(255,197,61,.5);background:rgba(255,197,61,.10);color:var(--gold)}

/* ---------- 等级亮点 ---------- */
.level-card{
  position:relative;display:flex;flex-direction:column;gap:20px;height:100%;
  padding:28px;border-radius:var(--r-lg);border:1px solid var(--border);
  background:var(--grad-soft);box-shadow:var(--shadow);
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.level-card::before{content:"";position:absolute;left:28px;top:0;width:2px;height:18px;background:var(--grad);border-radius:0 0 2px 2px}
.level-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--border-hover)}
.level-card:hover .level-badge{transform:scale(1.04)}
.level-head{display:flex;align-items:flex-start;justify-content:space-between;gap:18px}
.level-title{font-size:20px;font-weight:700;line-height:1.4}
.level-title small{display:block;margin-top:6px;font-size:13px;font-weight:400;color:var(--text-3)}
.level-badge{
  flex:0 0 auto;display:inline-flex;align-items:center;gap:6px;padding:6px 12px;
  border-radius:999px;font-size:13px;font-weight:700;
  color:var(--neon);background:rgba(38,224,200,.08);border:1px solid rgba(38,224,200,.4);
  transition:transform .18s ease-out;
}
.level-badge.gold{color:var(--gold);background:rgba(255,197,61,.10);border-color:rgba(255,197,61,.45)}
.level-badge b{font-family:var(--mono);font-size:16px}
.level-list{display:flex;flex-direction:column;gap:12px}
.level-list li{display:flex;gap:10px;font-size:15px;color:var(--text-2);line-height:1.75}
.level-list li i{color:var(--neon);margin-top:3px;font-size:13px}
.level-bar{margin-top:auto}
.level-bar-top{display:flex;justify-content:space-between;font-size:13px;color:var(--text-3);margin-bottom:8px}
.level-bar-track{height:6px;border-radius:999px;background:rgba(255,255,255,.08);overflow:hidden}
.level-bar-fill{height:100%;border-radius:999px;background:var(--grad);box-shadow:0 0 14px rgba(255,61,113,.55)}
.level-card.wide{flex-direction:row;align-items:stretch;gap:32px}
.level-card.wide .level-main{flex:1 1 auto;display:flex;flex-direction:column;gap:20px}
.level-side{
  flex:0 0 280px;display:flex;flex-direction:column;justify-content:center;gap:14px;
  padding-left:32px;border-left:1px solid rgba(255,255,255,.08);
}
.level-side .num{font-family:var(--mono);font-size:34px;font-weight:700;line-height:1.1;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.level-side p{font-size:13.5px;color:var(--text-3);line-height:1.7}

/* ---------- 内容卡片 ---------- */
.card{
  position:relative;display:flex;flex-direction:column;height:100%;overflow:hidden;
  border-radius:var(--r-lg);border:1px solid var(--border);background:var(--surface);
  box-shadow:var(--shadow);transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.card::before{content:"";position:absolute;left:0;top:0;width:2px;height:18px;background:var(--neon);z-index:3}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--border-hover)}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--surface-2)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease-out}
.card:hover .card-media img{transform:scale(1.04)}
.card-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(14,11,22,0) 40%,rgba(14,11,22,.72) 100%)}
.card-body{display:flex;flex-direction:column;gap:12px;padding:22px 24px 24px;flex:1 1 auto}
.card-title{
  font-size:17px;font-weight:700;line-height:1.55;color:var(--text);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card:hover .card-title{color:#fff}
.card-desc{
  font-size:14.5px;color:var(--text-2);line-height:1.8;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.card-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:6px}
.card-meta{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text-3)}
.card-meta time{font-family:var(--mono);letter-spacing:.4px}
.tag{
  display:inline-flex;align-items:center;gap:6px;padding:4px 11px;border-radius:999px;
  font-size:12px;font-weight:600;color:var(--neon);
  border:1px solid rgba(38,224,200,.42);background:rgba(38,224,200,.08);
  transition:background .18s ease-out,color .18s ease-out;
}
.tag:hover{background:var(--neon);color:#0E0B16}
.card-link{font-size:14px;font-weight:600;color:var(--neon);display:inline-flex;align-items:center;gap:6px}
.card-link i{transition:transform .18s ease-out}
.card:hover .card-link i{transform:translateX(3px)}
.placeholder-media{
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#1B1530,#120E1E);border-bottom:1px dashed rgba(255,255,255,.14);
}
.placeholder-media i{font-size:26px;color:var(--text-3)}

/* ---------- 空态 ---------- */
.empty-state{
  padding:60px 28px;text-align:center;border-radius:var(--r-lg);
  border:1px dashed rgba(255,255,255,.18);background:var(--surface);
}
.empty-state i{font-size:26px;color:var(--text-3);margin-bottom:14px;display:block}
.empty-state p{color:var(--text-2);font-size:15px;margin-bottom:18px}

/* ---------- 数据徽章 ---------- */
.badges-row{display:flex;flex-wrap:wrap;gap:14px}
.data-badge{
  display:inline-flex;align-items:baseline;gap:8px;padding:10px 16px;border-radius:999px;
  font-size:13px;color:var(--neon);background:rgba(38,224,200,.08);border:1px solid rgba(38,224,200,.35);
}
.data-badge b{font-family:var(--mono);font-size:19px;font-weight:700;letter-spacing:-.3px}
.data-badge span{color:var(--text-2)}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px}
.faq-item{
  border-radius:14px;border:1px solid var(--border);background:var(--surface);
  overflow:hidden;transition:border-color .18s ease-out,background .18s ease-out;
}
.faq-item[open]{border-color:rgba(255,122,47,.35);background:var(--surface-2)}
.faq-item summary{
  position:relative;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px 20px 26px;cursor:pointer;font-size:16px;font-weight:600;color:var(--text-2);
  list-style:none;transition:color .18s ease-out;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:3px;
  background:var(--grad);opacity:0;transition:opacity .18s ease-out;
}
.faq-item summary:hover{color:var(--text)}
.faq-item[open] summary{color:var(--text)}
.faq-item[open] summary::before{opacity:1}
.faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;position:relative;
  border:1px solid var(--border);transition:border-color .18s ease-out,transform .22s ease-out;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--text-2);border-radius:2px;
  transform:translate(-50%,-50%);transition:background .18s ease-out,transform .22s ease-out;
}
.faq-icon::before{width:11px;height:1.6px}
.faq-icon::after{width:1.6px;height:11px}
.faq-item[open] .faq-icon{border-color:rgba(38,224,200,.6);transform:rotate(180deg)}
.faq-item[open] .faq-icon::before,.faq-item[open] .faq-icon::after{background:var(--neon)}
.faq-item[open] .faq-icon::after{transform:translate(-50%,-50%) scaleY(0)}
.faq-answer{padding:0 26px 22px;font-size:15px;line-height:1.85;color:var(--text-2)}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  padding:44px 44px;display:flex;align-items:center;justify-content:space-between;gap:36px;
  background:var(--grad);box-shadow:0 26px 60px -26px rgba(255,61,113,.6);
}
.cta-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(circle at 18% 22%,rgba(14,11,22,.28) 0%,rgba(14,11,22,0) 62%);
}
.cta-band>*{position:relative;z-index:1}
.cta-copy h2{font-size:clamp(20px,2.6vw,28px);font-weight:800;color:#fff;line-height:1.4;letter-spacing:-.3px}
.cta-copy p{margin-top:12px;color:rgba(255,255,255,.88);font-size:15px;max-width:560px;line-height:1.85}
.cta-badge{
  display:inline-flex;align-items:center;gap:8px;margin-bottom:16px;padding:6px 13px;border-radius:999px;
  background:rgba(14,11,22,.32);border:1px solid rgba(255,255,255,.35);color:#fff;font-size:13px;font-weight:600;
}
.cta-badge b{font-family:var(--mono);font-size:16px}
.cta-actions{display:flex;gap:14px;flex:0 0 auto}
.btn-on-grad{background:#0E0B16;color:#fff;border-color:transparent;box-shadow:0 12px 26px -12px rgba(0,0,0,.7)}
.btn-on-grad:hover{background:#1B1530;color:#fff;transform:translateY(-2px)}
.btn-on-grad-line{background:transparent;border-color:rgba(255,255,255,.6);color:#fff}
.btn-on-grad-line:hover{background:rgba(255,255,255,.14);color:#fff;transform:translateY(-2px)}

/* ---------- 页脚 ---------- */
.site-footer{background:#0B0814;border-top:1px solid rgba(255,255,255,.06);padding:72px 0 0;position:relative}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,rgba(255,122,47,.5),rgba(255,61,113,.5));
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand .brand{margin-bottom:18px}
.footer-brand p{color:var(--text-2);font-size:14.5px;line-height:1.85;max-width:320px;margin-bottom:20px}
.footer-col h3{font-size:15px;font-weight:700;color:var(--text);margin-bottom:18px;letter-spacing:.2px}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a{color:var(--text-2);font-size:14.5px;display:inline-block;transition:color .18s ease-out,transform .18s ease-out}
.footer-col a:hover{color:var(--text);transform:translateX(2px)}
.footer-form{display:flex;gap:10px;margin-top:6px}
.footer-form input{
  flex:1 1 auto;min-width:0;height:44px;padding:0 14px;border-radius:var(--r-sm);
  background:var(--surface);border:1px solid var(--border);color:var(--text);font-size:14px;
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.footer-form input::placeholder{color:var(--text-3)}
.footer-form input:focus{outline:none;border-color:var(--neon);box-shadow:0 0 0 3px rgba(38,224,200,.18)}
.footer-form button{flex:0 0 auto}
.form-hint{margin-top:10px;font-size:12.5px;color:var(--text-3)}
.footer-bottom{
  margin-top:56px;padding:22px 0;border-top:1px solid rgba(255,255,255,.06);
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}
.footer-bottom a{color:var(--text-3)}
.footer-bottom a:hover{color:var(--text-2)}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container{padding:0 20px}
}
@media (max-width:1023px){
  .nav-toggle{display:flex}
  .main-nav{
    position:fixed;inset:74px 0 0 0;z-index:75;
    background:rgba(11,8,20,.98);backdrop-filter:blur(12px);
    padding:24px 20px 120px;overflow-y:auto;
    transform:translateX(100%);opacity:0;pointer-events:none;
    transition:transform .22s ease-out,opacity .22s ease-out;
  }
  .main-nav.is-open{transform:translateX(0);opacity:1;pointer-events:auto}
  .main-nav ul{flex-direction:column;align-items:stretch;gap:0}
  .main-nav a{
    padding:18px 4px;font-size:18px;font-weight:600;color:var(--text);
    border-bottom:1px solid rgba(255,255,255,.08);border-radius:0;
  }
  .main-nav a::after{display:none}
  .main-nav a.active{color:var(--neon)}
  .desktop-only{display:none}
  .hero-inner{padding:72px 0 60px}
  .section{padding:64px 0}
  .cta-band{padding:36px 28px;flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%;flex-wrap:wrap}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .level-card.wide{flex-direction:column}
  .level-side{flex:1 1 auto;padding-left:0;border-left:0;border-top:1px solid rgba(255,255,255,.08);padding-top:22px}
}
@media (max-width:767px){
  .hero-inner{padding:56px 0 48px}
  .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr))}
  .hero-stat:nth-child(odd)::before{display:none}
  .hero-stat:nth-child(3)::before,.hero-stat:nth-child(1)::before{display:none}
  .hero-stat{border-top:1px solid rgba(255,255,255,.08)}
  .hero-stat:nth-child(1),.hero-stat:nth-child(2){border-top:0}
  .section{padding:48px 0}
  .section-head{margin-bottom:32px}
  .matrix th,.matrix td{padding:14px 16px;font-size:14px}
  .cta-band{padding:30px 22px}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-form{flex-direction:column}
  .footer-form button{width:100%}
  .level-card{padding:22px}
  .card-body{padding:18px 20px 22px}
}
@media (max-width:519px){
  .container{padding:0 16px}
  .brand-name{font-size:16px}
  .header-inner{height:66px}
  .main-nav{inset:66px 0 0 0}
  .hero h1{font-size:28px}
  .hero-lead{font-size:15.5px}
  .hero-actions .btn{width:100%}
  .hero-stats{grid-template-columns:1fr}
  .hero-stat+.hero-stat::before{display:none}
  .hero-stat{border-top:1px solid rgba(255,255,255,.08)}
  .hero-stat:nth-child(1){border-top:0}
}

/* roulang page: article */
:root{
  --bg:#0E0B16;
  --surface:#181327;
  --surface-2:#221B36;
  --surface-3:#2B2340;
  --primary:#FF7A2F;
  --secondary:#FF3D71;
  --neon:#26E0C8;
  --gold:#FFC53D;
  --text:#F4F1FF;
  --text-2:#ADA5C4;
  --text-3:#6F6788;
  --success:#3ED598;
  --warn:#FFB020;
  --border:rgba(255,255,255,.08);
  --border-hover:rgba(255,122,47,.45);
  --grad:linear-gradient(135deg,#FF9A3C 0%,#FF3D71 100%);
  --grad-line:linear-gradient(180deg,#FF9A3C 0%,#FF3D71 100%);
  --r-lg:22px;
  --r-md:16px;
  --r-sm:10px;
  --shadow:0 18px 40px -20px rgba(0,0,0,.8);
  --shadow-hover:0 26px 60px -22px rgba(255,61,113,.35);
  --font:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Helvetica Neue",sans-serif;
  --mono:"DIN Alternate","Barlow","Roboto Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;padding:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .18s ease-out,border-color .18s ease-out,background-color .18s ease-out}
h1,h2,h3,h4,h5{margin:0;font-weight:700;line-height:1.4;color:var(--text)}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,textarea,select{font-family:inherit;font-size:15px}
::selection{background:rgba(255,61,113,.35);color:#fff}
:focus-visible{outline:2px solid var(--neon);outline-offset:2px;border-radius:6px}

/* ---------- 容器 ---------- */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (max-width:1023px){.container{padding:0 20px}}
@media (max-width:599px){.container{padding:0 16px}}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;line-height:1;letter-spacing:.2px;
  transition:transform .18s ease-out,box-shadow .18s ease-out,background-color .18s ease-out,color .18s ease-out,border-color .18s ease-out;
  white-space:nowrap;
}
.btn-primary{
  background-image:var(--grad);
  color:#200C14;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.22),0 10px 24px -10px rgba(255,61,113,.6);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:inset 0 0 0 1px rgba(255,255,255,.35),0 18px 34px -12px rgba(255,61,113,.75);color:#200C14}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{
  background:transparent;color:var(--text);border:1px solid rgba(255,255,255,.18);
}
.btn-ghost:hover{border-color:var(--primary);color:#fff;transform:translateY(-2px)}
.btn-text{display:inline-flex;align-items:center;gap:6px;color:var(--neon);font-size:14px;font-weight:600;padding:6px 0}
.btn-text::after{content:"→";transition:transform .18s ease-out}
.btn-text:hover::after{transform:translateX(3px)}
.btn-text:hover{color:#fff}

/* ---------- 头部 ---------- */
.site-header{
  position:sticky;top:0;z-index:200;
  background:rgba(14,11,22,.86);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--border);
  transition:background-color .22s ease-out;
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
  background:linear-gradient(90deg,var(--primary),var(--secondary));
  opacity:.55;pointer-events:none;
}
.site-header.is-scrolled{background:rgba(14,11,22,.95)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:26px;height:26px;border-radius:9px;
  background-image:var(--grad);
  box-shadow:0 0 0 1px rgba(255,255,255,.2) inset,0 0 16px rgba(255,61,113,.55);
  position:relative;flex-shrink:0;
}
.brand-mark::after{
  content:"";position:absolute;inset:7px 7px auto 7px;height:2px;border-radius:2px;background:rgba(14,11,22,.75);
  box-shadow:0 5px 0 rgba(14,11,22,.75),0 -5px 0 rgba(14,11,22,.75);
}
.brand-name{font-size:19px;font-weight:700;letter-spacing:.3px;color:var(--text)}
.main-nav ul{display:flex;align-items:center;gap:6px}
.main-nav a{
  position:relative;display:block;padding:10px 14px;border-radius:8px;
  font-size:15px;color:var(--text-2);
}
.main-nav a::after{
  content:"";position:absolute;left:50%;bottom:4px;width:0;height:2px;border-radius:2px;
  background:var(--neon);transform:translateX(-50%);
  transition:width .22s ease-out;
}
.main-nav a:hover{color:var(--text)}
.main-nav a:hover::after{width:60%}
.main-nav a.active{color:var(--text);text-shadow:0 0 12px rgba(38,224,200,.55)}
.main-nav a.active::after{width:60%;background-image:var(--grad);background-color:transparent}
.header-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;
  border:1px solid var(--border);align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--neon);transition:transform .22s ease-out,opacity .22s ease-out}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
@media (max-width:1023px){
  .desktop-only{display:none}
  .nav-toggle{display:inline-flex}
  .main-nav{
    position:fixed;top:73px;left:0;right:0;bottom:0;z-index:190;
    background:rgba(14,11,22,.985);backdrop-filter:blur(18px);
    padding:20px 20px 120px;overflow-y:auto;
    transform:translateY(-12px);opacity:0;visibility:hidden;pointer-events:none;
    transition:opacity .22s ease-out,transform .22s ease-out,visibility .22s ease-out;
    border-top:1px solid var(--border);
  }
  .main-nav.is-open{opacity:1;visibility:visible;pointer-events:auto;transform:translateY(0)}
  .main-nav ul{flex-direction:column;align-items:stretch;gap:0}
  .main-nav li{border-bottom:1px solid var(--border)}
  .main-nav a{padding:18px 6px;font-size:18px}
  .main-nav a::after{display:none}
  .main-nav a.active{color:var(--neon)}
  .nav-drawer-cta{display:block;margin-top:24px}
  .nav-drawer-cta .btn{width:100%}
}
@media (min-width:1024px){
  .nav-drawer-cta{display:none}
}
body.nav-locked{overflow:hidden}

/* ---------- 文章头部 ---------- */
.article-hero{
  position:relative;
  padding:52px 0 44px;
  border-bottom:1px solid var(--border);
  background-image:linear-gradient(90deg,rgba(14,11,22,.95) 0%,rgba(14,11,22,.80) 52%,rgba(14,11,22,.62) 100%),url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.article-hero::before{
  content:"";position:absolute;width:640px;height:640px;right:-160px;top:-280px;pointer-events:none;
  background:radial-gradient(circle,rgba(255,61,113,.14) 0%,rgba(255,61,113,0) 68%);
}
.breadcrumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:13px;color:var(--text-3);margin-bottom:22px;position:relative;
}
.breadcrumb a{color:var(--text-2)}
.breadcrumb a:hover{color:var(--neon)}
.breadcrumb .sep{color:var(--text-3);opacity:.7}
.breadcrumb .current{color:var(--text-3);max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.cat-bar{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.cat-bar .bar{width:4px;height:18px;border-radius:3px;background-image:var(--grad-line);box-shadow:0 0 12px rgba(255,122,47,.5)}
.cat-bar .cat-name{font-size:13px;letter-spacing:1px;color:var(--neon);text-transform:uppercase}
.article-title{
  font-size:clamp(24px,4vw,38px);font-weight:800;letter-spacing:-.5px;line-height:1.35;
  margin:0 0 18px;max-width:26ch;
}
.article-meta{
  display:flex;align-items:center;flex-wrap:wrap;gap:10px;
  font-size:13px;color:var(--text-3);
}
.article-meta .meta-item{display:inline-flex;align-items:center;gap:6px}
.article-meta .meta-item b{font-family:var(--mono);font-weight:600;color:var(--text-2);letter-spacing:.5px}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--text-3);opacity:.65}

/* ---------- 页体 ---------- */
.article-body{padding:56px 0 24px}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:48px}
@media (min-width:1024px){
  .article-layout{grid-template-columns:minmax(0,1fr) 300px;gap:56px}
  .article-main{max-width:800px}
}
.panel{
  background:linear-gradient(180deg,#1C1630 0%,#120E1E 100%);
  border:1px solid var(--border);border-radius:var(--r-lg);
  box-shadow:var(--shadow);
}
.article-content{
  padding:36px 38px 42px;
  font-size:16px;line-height:1.9;color:var(--text);
}
@media (max-width:767px){.article-content{padding:26px 20px 30px}}
.article-content p{margin:0 0 1.15em;color:#E7E2F6}
.article-content h2{
  position:relative;font-size:clamp(20px,2.6vw,26px);font-weight:700;
  padding-left:16px;margin:38px 0 16px;
}
.article-content h2::before{
  content:"";position:absolute;left:0;top:.28em;bottom:.28em;width:4px;border-radius:3px;
  background-image:var(--grad-line);
}
.article-content h3{font-size:19px;font-weight:600;margin:28px 0 12px}
.article-content h4{font-size:17px;font-weight:600;margin:22px 0 10px;color:var(--text-2)}
.article-content ul{margin:0 0 1.2em;padding-left:2px}
.article-content ul li{position:relative;padding-left:20px;margin-bottom:10px;color:#E7E2F6}
.article-content ul li::before{
  content:"";position:absolute;left:0;top:.66em;width:8px;height:8px;border-radius:2px;background:var(--neon);
  box-shadow:0 0 10px rgba(38,224,200,.55);
}
.article-content ol{margin:0 0 1.2em;counter-reset:ac;padding-left:2px}
.article-content ol li{position:relative;counter-increment:ac;padding-left:34px;margin-bottom:12px;color:#E7E2F6}
.article-content ol li::before{
  content:counter(ac);
  position:absolute;left:0;top:.34em;width:22px;height:22px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--mono);font-size:12px;font-weight:700;color:var(--neon);
  border:1px solid rgba(38,224,200,.5);background:rgba(38,224,200,.08);
}
.article-content blockquote{
  margin:24px 0;padding:18px 24px;
  background:rgba(43,35,64,.55);
  border-left:3px solid transparent;
  border-image:var(--grad-line) 1;
  border-radius:0 var(--r-md) var(--r-md) 0;
  color:var(--text-2);font-size:15.5px;
}
.article-content blockquote p:last-child{margin-bottom:0}
.article-content a{color:var(--neon);border-bottom:1px dashed rgba(38,224,200,.6)}
.article-content a:hover{border-bottom-style:solid;color:#7FF3E2}
.article-content img{border-radius:14px;margin:22px 0 10px;width:100%}
.article-content table{width:100%;border-collapse:collapse;font-size:14.5px}
.article-content .table-scroll{overflow-x:auto;margin:22px 0;border:1px solid var(--border);border-radius:var(--r-md)}
.article-content th,.article-content td{padding:12px 16px;text-align:left;border-bottom:1px solid var(--border);white-space:nowrap}
.article-content th{background:rgba(43,35,64,.6);color:var(--text-2);font-weight:600}
.article-content tr:last-child td{border-bottom:0}
.notice{
  margin:22px 0;padding:16px 20px;border-radius:var(--r-md);
  background:rgba(43,35,64,.55);border-left:3px solid var(--primary);
  font-size:14px;line-height:1.8;color:var(--text-2);
}
.empty-state{
  text-align:center;padding:64px 28px;border:1px dashed rgba(255,255,255,.16);border-radius:var(--r-lg);
  background:linear-gradient(180deg,#1C1630 0%,#120E1E 100%);
}
.empty-state p{color:var(--text-2);font-size:16px;margin-bottom:20px}

/* ---------- 文末 ---------- */
.article-foot{margin-top:34px}
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:28px}
.tag-row .label{font-size:13px;color:var(--text-3);margin-right:4px}
.tag{
  display:inline-flex;align-items:center;padding:5px 14px;border-radius:999px;
  font-size:12.5px;color:var(--neon);border:1px solid rgba(38,224,200,.55);background:rgba(38,224,200,.08);
  transition:background-color .18s ease-out,color .18s ease-out;
}
.tag:hover{background:rgba(38,224,200,.2);color:#fff}
.back-row{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.pager{display:grid;gap:18px;grid-template-columns:1fr 1fr}
@media (max-width:767px){.pager{grid-template-columns:1fr}}
.pager-card{
  display:block;padding:20px 22px;border-radius:var(--r-md);
  background:var(--surface);border:1px solid var(--border);
  transition:transform .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out;
}
.pager-card:hover{transform:translateY(-3px);border-color:var(--border-hover);box-shadow:var(--shadow-hover)}
.pager-card .pager-label{display:block;font-size:12.5px;color:var(--neon);letter-spacing:1px;margin-bottom:8px}
.pager-card .pager-title{font-size:15.5px;font-weight:600;color:var(--text);line-height:1.6}
.pager-card.disabled{opacity:.45;pointer-events:none}

/* ---------- 相关推荐 ---------- */
.related{padding:64px 0 72px;border-top:1px solid rgba(255,255,255,.06);margin-top:56px}
.section-head{margin-bottom:28px}
.section-head h2{font-size:clamp(22px,3vw,30px);font-weight:700;letter-spacing:-.3px;position:relative;padding-left:16px}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:4px;border-radius:3px;background-image:var(--grad-line);
}
.section-head .line{display:block;width:40px;height:3px;border-radius:3px;background-image:var(--grad);margin:14px 0 0 16px}
.card-grid{display:grid;gap:24px;grid-template-columns:repeat(3,minmax(0,1fr))}
@media (max-width:1023px){.card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:599px){.card-grid{grid-template-columns:1fr;gap:18px}}
.post-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);
  box-shadow:var(--shadow);
  transition:transform .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out;
}
.post-card:hover{transform:translateY(-4px);border-color:var(--border-hover);box-shadow:var(--shadow-hover)}
.post-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:#120E1E}
.post-thumb img{width:100%;height:100%;object-fit:cover}
.post-thumb::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(14,11,22,.05) 0%,rgba(14,11,22,.72) 100%);
}
.post-thumb .thumb-tag{
  position:absolute;left:16px;top:14px;z-index:2;
  padding:4px 12px;border-radius:999px;font-size:12px;color:var(--neon);
  background:rgba(14,11,22,.72);border:1px solid rgba(38,224,200,.5);
}
.post-info{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.post-info h3{font-size:16.5px;font-weight:600;line-height:1.6;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-info p{font-size:14px;color:var(--text-2);line-height:1.8;margin-bottom:16px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.post-info .post-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px}
.post-info .post-date{font-family:var(--mono);font-size:12.5px;color:var(--text-3);letter-spacing:.5px}

/* ---------- 侧栏 ---------- */
.article-side{display:flex;flex-direction:column;gap:22px}
@media (min-width:1024px){
  .article-side{position:sticky;top:96px;align-self:start}
}
.side-card{
  padding:24px 22px;border-radius:var(--r-lg);
  background:linear-gradient(180deg,#221B36 0%,#181327 100%);
  border:1px solid var(--border);box-shadow:var(--shadow);
}
.side-card h3{font-size:16px;font-weight:700;margin-bottom:14px;display:flex;align-items:center;gap:9px}
.side-card h3 .dotline{width:3px;height:14px;border-radius:2px;background-image:var(--grad-line)}
.badge-gold{
  display:inline-flex;align-items:center;gap:6px;margin-bottom:12px;
  padding:5px 12px;border-radius:999px;font-size:12.5px;
  color:var(--gold);border:1px solid rgba(255,197,61,.5);background:rgba(255,197,61,.1);
}
.badge-gold b{font-family:var(--mono);font-size:14px}
.side-card ul.benefit-list li{
  position:relative;padding-left:18px;margin-bottom:10px;font-size:14px;color:var(--text-2);line-height:1.75;
}
.side-card ul.benefit-list li::before{
  content:"";position:absolute;left:0;top:.62em;width:7px;height:7px;border-radius:2px;background:var(--neon);
}
.side-card .btn{width:100%;margin-top:16px}
.quick-links li{margin-bottom:4px}
.quick-links a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 12px;border-radius:10px;font-size:14.5px;color:var(--text-2);
  border:1px solid transparent;transition:all .18s ease-out;
}
.quick-links a::after{content:"→";color:var(--text-3);font-size:13px;transition:transform .18s ease-out,color .18s ease-out}
.quick-links a:hover{background:rgba(43,35,64,.7);color:var(--text);border-color:var(--border)}
.quick-links a:hover::after{transform:translateX(3px);color:var(--neon)}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:24px;padding:72px 0 0;
  background:linear-gradient(180deg,#0E0B16 0%,#130F20 100%);
  border-top:1px solid var(--border);
}
.footer-grid{display:grid;gap:40px;grid-template-columns:1.5fr 1fr 1fr 1.4fr}
@media (max-width:1023px){.footer-grid{grid-template-columns:1fr 1fr;gap:34px}}
@media (max-width:599px){.footer-grid{grid-template-columns:1fr;gap:30px}}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:14.5px;color:var(--text-2);line-height:1.85;margin-bottom:18px;max-width:36ch}
.footer-col h3{font-size:15px;font-weight:700;margin-bottom:16px;color:var(--text)}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a{font-size:14.5px;color:var(--text-2);display:inline-block}
.footer-col ul a:hover{color:var(--text);transform:translateX(2px)}
.badges-row{display:flex;flex-wrap:wrap;gap:10px}
.data-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;font-size:12.5px;
  color:var(--neon);border:1px solid rgba(38,224,200,.45);background:rgba(38,224,200,.08);
}
.data-badge b{font-family:var(--mono);font-size:15px;font-weight:700;letter-spacing:.5px}
.data-badge span{color:var(--text-2)}
.footer-form{display:flex;gap:10px;margin-bottom:10px}
.footer-form input{
  flex:1;min-width:0;padding:12px 14px;border-radius:var(--r-sm);
  background:var(--surface);border:1px solid var(--border);color:var(--text);
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.footer-form input::placeholder{color:var(--text-3)}
.footer-form input:focus{outline:0;border-color:var(--neon);box-shadow:0 0 0 3px rgba(38,224,200,.18)}
.footer-form .btn{padding:12px 18px}
@media (max-width:599px){
  .footer-form{flex-direction:column}
  .footer-form .btn{width:100%}
}
.form-hint{font-size:12.5px;color:var(--text-3)}
.footer-bottom{
  margin-top:56px;padding:22px 0;border-top:1px solid var(--border);
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}
@media (max-width:599px){.footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}}

/* roulang page: category1 */
:root{
  --bg:#0E0B16;
  --surface:#181327;
  --surface-2:#221B36;
  --surface-3:#2B2340;
  --primary:#FF7A2F;
  --secondary:#FF3D71;
  --grad:linear-gradient(135deg,#FF9A3C 0%,#FF3D71 100%);
  --grad-soft:linear-gradient(180deg,#1C1630 0%,#120E1E 100%);
  --cyan:#26E0C8;
  --gold:#FFC53D;
  --text:#F4F1FF;
  --text-2:#ADA5C4;
  --text-3:#6F6788;
  --success:#3ED598;
  --warn:#FFB020;
  --border:rgba(255,255,255,.08);
  --border-hover:rgba(255,122,47,.45);
  --radius-lg:22px;
  --radius-md:16px;
  --radius-sm:10px;
  --shadow:0 18px 40px -20px rgba(0,0,0,.8);
  --shadow-hover:0 26px 60px -22px rgba(255,61,113,.35);
  --font-cn:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-num:"DIN Alternate","Barlow","Roboto Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  --container:1200px;
  --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);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.nav-open{overflow:hidden}
h1,h2,h3,h4{color:var(--text);line-height:1.35;margin:0;font-weight:700}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
img{max-width:100%;height:auto;display:block;border-style:none}
ul,ol{margin:0;padding:0;list-style:none}
a{color:inherit;text-decoration:none;transition:color .18s var(--ease)}
button{font-family:inherit;font-size:inherit;cursor:pointer}
input,textarea,select{font-family:inherit}
::selection{background:rgba(255,61,113,.35);color:#fff}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px}
section{scroll-margin-top:104px}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
@media (max-width:1023px){.container{padding:0 20px}}
@media (max-width:599px){.container{padding:0 16px}}

/* ---------- 顶栏 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(14,11,22,.82);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--border);
  transition:background .25s var(--ease),box-shadow .25s var(--ease);
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,122,47,.6),rgba(255,61,113,.6),transparent);
  opacity:0;transition:opacity .25s var(--ease);
}
.site-header.scrolled{background:rgba(14,11,22,.94);box-shadow:0 14px 30px -24px rgba(0,0,0,.9)}
.site-header.scrolled::after{opacity:1}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:76px}

.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:26px;height:26px;flex:0 0 auto;
  background:var(--grad);
  clip-path:polygon(50% 0,100% 25%,100% 75%,50% 100%,0 75%,0 25%);
  box-shadow:0 0 18px rgba(255,61,113,.55);
}
.brand-name{font-size:19px;font-weight:700;letter-spacing:.2px;color:var(--text);white-space:nowrap}

.main-nav ul{display:flex;align-items:center;gap:4px}
.main-nav a{
  position:relative;display:inline-block;
  padding:10px 14px;border-radius:var(--radius-sm);
  font-size:15px;color:var(--text-2);
  transition:color .2s var(--ease),background .2s var(--ease);
}
.main-nav a::after{
  content:"";position:absolute;left:50%;bottom:3px;width:60%;height:2px;border-radius:2px;
  background:var(--cyan);
  transform:translateX(-50%) scaleX(0);
  transform-origin:center;
  transition:transform .22s var(--ease),background .22s var(--ease);
}
.main-nav a:hover{color:var(--text)}
.main-nav a:hover::after{transform:translateX(-50%) scaleX(1)}
.main-nav a.active{color:var(--text);text-shadow:0 0 12px rgba(38,224,200,.55)}
.main-nav a.active::after{background:var(--grad);transform:translateX(-50%) scaleX(1)}

.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;
  border-radius:var(--radius-sm);
  border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s var(--ease),background .18s var(--ease),color .18s var(--ease);
}
.btn-primary{
  position:relative;
  background:var(--grad);
  color:#fff;
  box-shadow:0 10px 24px -10px rgba(255,61,113,.6);
}
.btn-primary::before{
  content:"";position:absolute;inset:0;border-radius:inherit;
  border:1px solid rgba(255,255,255,.25);pointer-events:none;
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 34px -12px rgba(255,61,113,.85);color:#fff}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.18);color:var(--text)}
.btn-ghost:hover{border-color:var(--primary);color:#fff;transform:translateY(-2px)}
.btn-block{width:100%}
.btn-text{color:var(--cyan);font-weight:600;font-size:14.5px;display:inline-flex;align-items:center;gap:6px}
.btn-text:hover{color:#5df0dd}
.btn-text:hover span{transform:translateX(3px)}
.btn-text span{transition:transform .18s var(--ease)}

.nav-toggle{
  display:none;flex-direction:column;justify-content:center;align-items:center;gap:5px;
  width:44px;height:44px;padding:0;
  border-radius:var(--radius-sm);
  background:rgba(255,255,255,.04);
  border:1px solid var(--border);
}
.nav-toggle span{display:block;width:20px;height:2px;border-radius:2px;background:var(--grad);transition:transform .22s var(--ease),opacity .22s var(--ease)}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- Hero ---------- */
.page-hero{position:relative;overflow:hidden;padding:68px 0 60px;border-bottom:1px solid var(--border)}
.page-hero .hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
}
.page-hero .hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(14,11,22,.95) 0%,rgba(14,11,22,.82) 42%,rgba(14,11,22,.46) 100%);
}
.page-hero::after{
  content:"";position:absolute;right:-180px;top:-240px;width:640px;height:640px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,61,113,.16),transparent 68%);
  pointer-events:none;
}
.page-hero::before{
  content:"";position:absolute;left:-160px;bottom:-260px;width:560px;height:560px;border-radius:50%;
  background:radial-gradient(circle,rgba(38,224,200,.12),transparent 68%);
  pointer-events:none;z-index:1;
}
.hero-inner{position:relative;z-index:3;max-width:880px}

.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:20px}
.breadcrumb a{color:var(--text-2)}
.breadcrumb a:hover{color:var(--cyan)}
.breadcrumb .sep{color:#453f5c}
.breadcrumb .now{color:var(--text-3)}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 14px;border-radius:999px;
  font-size:13px;letter-spacing:.4px;color:var(--cyan);
  background:rgba(38,224,200,.08);
  border:1px solid rgba(38,224,200,.42);
}
.eyebrow i{display:block;width:6px;height:6px;border-radius:50%;background:var(--cyan);box-shadow:0 0 10px var(--cyan)}

.page-hero h1{
  font-size:clamp(30px,5vw,52px);
  font-weight:800;
  letter-spacing:-.5px;
  line-height:1.28;
  margin:20px 0 0;
  max-width:820px;
}
.hero-lead{
  margin:20px 0 0;max-width:700px;
  font-size:17px;line-height:1.85;color:var(--text-2);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}

.badges-row{display:flex;flex-wrap:wrap;align-items:flex-end;gap:0;margin-top:34px;padding-top:26px;border-top:1px solid var(--border)}
.data-badge{
  display:inline-flex;flex-direction:column;gap:2px;
  padding:0 26px;
  border-left:1px solid var(--border);
}
.data-badge:first-child{padding-left:0;border-left:none}
.data-badge b{
  font-family:var(--font-num);font-size:26px;font-weight:700;line-height:1.1;letter-spacing:.3px;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.data-badge span{font-size:13px;color:var(--text-3);line-height:1.5;white-space:nowrap}
.data-badge.is-cyan b{background:none;color:var(--cyan);-webkit-text-fill-color:var(--cyan)}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0;position:relative}
.section-alt{border-top:1px solid rgba(255,255,255,.06)}
.section-head{max-width:780px;margin-bottom:44px}
.section-head h2{
  position:relative;
  padding-left:16px;
  font-size:clamp(22px,3vw,32px);
  font-weight:700;
  letter-spacing:-.2px;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.14em;bottom:.14em;width:4px;border-radius:3px;
  background:var(--grad);
}
.section-head p{margin:14px 0 0;color:var(--text-2);font-size:15.5px;line-height:1.85}

/* ---------- 锚点索引条 ---------- */
.anchor-wrap{padding:28px 0 0;background:var(--bg)}
.anchor-bar{
  display:flex;gap:12px;overflow-x:auto;
  padding:8px 2px 16px;
  scrollbar-width:thin;
  scrollbar-color:rgba(255,255,255,.18) transparent;
}
.anchor-bar::-webkit-scrollbar{height:6px}
.anchor-bar::-webkit-scrollbar-track{background:transparent}
.anchor-bar::-webkit-scrollbar-thumb{background:rgba(255,255,255,.16);border-radius:6px}
.chip{
  flex:0 0 auto;display:inline-flex;align-items:center;gap:8px;
  padding:9px 18px;border-radius:999px;
  font-size:14px;color:var(--text-2);
  background:rgba(38,224,200,.07);
  border:1px solid rgba(38,224,200,.32);
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.chip em{font-family:var(--font-num);font-style:normal;font-size:12px;color:var(--cyan)}
.chip:hover{background:rgba(38,224,200,.16);color:#fff;border-color:rgba(38,224,200,.6)}
.chip.active{background:var(--grad);color:#fff;border-color:transparent;box-shadow:0 10px 22px -12px rgba(255,61,113,.85)}
.chip.active em{color:rgba(255,255,255,.85)}

/* ---------- 分组卡片 ---------- */
.group-card{
  position:relative;
  background:var(--grad-soft);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  padding:28px 28px 14px;
  margin-bottom:24px;
  box-shadow:var(--shadow);
  overflow:hidden;
  transition:border-color .18s ease-out,box-shadow .18s ease-out,transform .18s ease-out;
}
.group-card::before{
  content:"";position:absolute;left:0;top:28px;width:2px;height:18px;border-radius:0 2px 2px 0;
  background:var(--cyan);box-shadow:0 0 12px rgba(38,224,200,.7);
}
.group-card:hover{border-color:var(--border-hover);box-shadow:var(--shadow-hover);transform:translateY(-2px)}

.group-head{display:flex;align-items:center;flex-wrap:wrap;gap:14px;margin-bottom:10px}
.group-index{
  font-family:var(--font-num);font-size:15px;font-weight:700;letter-spacing:1px;
  padding:4px 12px;border-radius:999px;
  color:var(--cyan);background:rgba(38,224,200,.09);border:1px solid rgba(38,224,200,.38);
}
.group-head h3{font-size:22px;font-weight:700;letter-spacing:-.2px}
.group-count{margin-left:auto;font-size:13px;color:var(--text-3);font-family:var(--font-num)}
.group-desc{margin:0 0 14px;font-size:14.5px;color:var(--text-2);line-height:1.8;max-width:840px}

.entry-list{display:block}
.entry-item{
  display:flex;align-items:flex-start;gap:16px;
  padding:16px 14px;border-radius:14px;
  transition:background .18s var(--ease),transform .18s var(--ease);
}
.entry-item + .entry-item{border-top:1px solid var(--border)}
.entry-item:hover{background:rgba(255,255,255,.045)}
.entry-item:hover .entry-arrow{transform:translateX(4px);color:var(--cyan)}
.entry-item:hover .entry-title{color:#fff}
.entry-num{
  flex:0 0 auto;width:34px;height:34px;border-radius:9px;
  display:grid;place-items:center;
  font-family:var(--font-num);font-size:14px;font-weight:700;
  color:var(--cyan);background:rgba(38,224,200,.09);border:1px solid rgba(38,224,200,.35);
}
.entry-body{display:block;min-width:0}
.entry-title{display:block;font-size:16.5px;font-weight:600;color:var(--text);line-height:1.6;transition:color .18s var(--ease)}
.entry-desc{display:block;margin-top:4px;font-size:14.5px;color:var(--text-2);line-height:1.75}
.entry-arrow{
  margin-left:auto;align-self:center;flex:0 0 auto;
  font-size:18px;color:var(--text-3);
  transition:transform .18s var(--ease),color .18s var(--ease);
}

/* ---------- 误区 / 侧栏组合 ---------- */
.tip-panel{
  height:100%;
  background:var(--grad-soft);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  padding:30px 30px 24px;
  box-shadow:var(--shadow);
}
.tip-panel h2{position:relative;padding-left:16px;font-size:clamp(20px,2.4vw,26px)}
.tip-panel h2::before{content:"";position:absolute;left:0;top:.16em;bottom:.16em;width:4px;border-radius:3px;background:var(--grad)}
.tip-panel > p{margin:14px 0 22px;color:var(--text-2);font-size:15px;line-height:1.85}
.tip-list li{
  display:flex;gap:14px;align-items:flex-start;
  padding:16px 0;
  border-top:1px solid var(--border);
}
.tip-list li:first-child{border-top:none}
.tip-icon{
  flex:0 0 auto;width:30px;height:30px;border-radius:9px;
  display:grid;place-items:center;
  font-family:var(--font-num);font-size:14px;font-weight:700;
  color:var(--warn);background:rgba(255,176,32,.1);border:1px solid rgba(255,176,32,.35);
}
.tip-list strong{display:block;font-size:16px;font-weight:600;color:var(--text);margin-bottom:4px}
.tip-list span{display:block;font-size:14.5px;color:var(--text-2);line-height:1.75}

.side-card{
  height:100%;
  display:flex;flex-direction:column;
  background:var(--grad-soft);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  overflow:hidden;
  box-shadow:var(--shadow);
  transition:border-color .18s ease-out,box-shadow .18s ease-out,transform .18s ease-out;
}
.side-card:hover{border-color:var(--border-hover);box-shadow:var(--shadow-hover);transform:translateY(-4px)}
.side-media{position:relative;aspect-ratio:16/9;overflow:hidden}
.side-media img{width:100%;height:100%;object-fit:cover}
.side-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(14,11,22,.1),rgba(14,11,22,.85))}
.side-body{padding:24px;display:flex;flex-direction:column;flex:1;gap:14px}
.side-body h3{font-size:19px;font-weight:700;line-height:1.5}
.side-body p{margin:0;font-size:14.5px;color:var(--text-2);line-height:1.8}
.side-body .btn{margin-top:auto}
.badge-gold{
  align-self:flex-start;
  display:inline-flex;align-items:center;gap:7px;
  padding:4px 13px;border-radius:999px;
  font-size:12.5px;letter-spacing:.3px;
  color:var(--gold);background:rgba(255,197,61,.1);border:1px solid rgba(255,197,61,.4);
}
.badge-cyan{
  display:inline-flex;align-items:center;gap:7px;
  padding:4px 13px;border-radius:999px;
  font-size:12.5px;letter-spacing:.3px;
  color:var(--cyan);background:rgba(38,224,200,.08);border:1px solid rgba(38,224,200,.4);
}

/* ---------- FAQ ---------- */
.accordion{background:transparent;border:none;margin:0}
.accordion .accordion-item{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:14px;
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.accordion .accordion-item:hover{border-color:var(--border-hover)}
.accordion .accordion-item.is-active{border-color:rgba(255,122,47,.42);box-shadow:var(--shadow)}
.accordion .accordion-title{
  position:relative;display:block;
  padding:18px 58px 18px 22px;
  font-size:16.5px;font-weight:600;line-height:1.6;
  color:var(--text-2);background:transparent;border:none;
  transition:color .2s var(--ease);
}
.accordion .accordion-item.is-active .accordion-title{color:var(--text)}
.accordion .accordion-title::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:0 3px 3px 0;
  background:var(--grad);opacity:0;transition:opacity .22s var(--ease);
}
.accordion .accordion-item.is-active .accordion-title::before{opacity:1}
.accordion .accordion-title::after{
  content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);
  font-size:22px;font-weight:400;line-height:1;color:var(--text-3);transition:transform .22s var(--ease),color .22s var(--ease);
}
.accordion .accordion-item.is-active .accordion-title::after{
  content:"−";color:var(--cyan);transform:translateY(-50%) rotate(180deg);
}
.accordion .accordion-content{
  padding:0 22px 22px;
  border:none;background:transparent;
  font-size:15px;line-height:1.8;color:var(--text-2);
}
.accordion .accordion-content a{color:var(--cyan);border-bottom:1px dashed rgba(38,224,200,.6)}
.accordion .accordion-content a:hover{border-bottom-style:solid}

/* ---------- CTA ---------- */
.cta-banner{
  position:relative;overflow:hidden;
  display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
  padding:44px 44px;
  border-radius:var(--radius-lg);
  background:var(--grad);
  box-shadow:0 26px 60px -26px rgba(255,61,113,.7);
}
.cta-banner::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(600px 300px at 88% 12%,rgba(14,11,22,.42),transparent 70%);
}
.cta-text{position:relative;z-index:2;max-width:640px}
.cta-text .badge-cyan{color:rgba(255,255,255,.92);background:rgba(14,11,22,.25);border-color:rgba(255,255,255,.4)}
.cta-text h2{margin:16px 0 12px;font-size:clamp(21px,2.6vw,29px);color:#fff;letter-spacing:-.2px}
.cta-text p{margin:0;font-size:15px;line-height:1.8;color:rgba(255,255,255,.86)}
.cta-actions{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:14px}
.cta-actions .btn-primary{background:#150F22;box-shadow:0 14px 30px -14px rgba(0,0,0,.7)}
.cta-actions .btn-primary::before{border-color:rgba(255,255,255,.22)}
.cta-actions .btn-primary:hover{background:#1d1530;box-shadow:0 18px 36px -14px rgba(0,0,0,.85)}
.cta-actions .btn-ghost{border-color:rgba(255,255,255,.6);color:#fff}
.cta-actions .btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.12)}

/* ---------- 页脚 ---------- */
.site-footer{border-top:1px solid var(--border);background:#0B0913;margin-top:12px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding:72px 0 48px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:14.5px;color:var(--text-2);line-height:1.85;max-width:340px;margin-bottom:20px}
.footer-brand .badges-row{border-top:none;padding-top:0;margin-top:0}
.footer-brand .data-badge{padding-left:0;border-left:none}
.footer-brand .data-badge b{font-size:22px}
.footer-col h3{font-size:15px;font-weight:600;color:var(--text);margin-bottom:16px;letter-spacing:.2px}
.footer-col ul li{margin-bottom:11px}
.footer-col ul a{font-size:14.5px;color:var(--text-2);display:inline-block;transition:color .18s var(--ease),transform .18s var(--ease)}
.footer-col ul a:hover{color:var(--text);transform:translateX(2px)}
.footer-form{display:flex;gap:10px;margin-bottom:10px}
.footer-form input{
  flex:1;min-width:0;height:44px;padding:0 14px;
  border-radius:var(--radius-sm);
  background:var(--surface-2);
  border:1px solid var(--border);
  color:var(--text);font-size:14.5px;
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.footer-form input::placeholder{color:var(--text-3)}
.footer-form input:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(38,224,200,.16)}
.form-hint{font-size:13px;color:var(--text-3);margin:0;line-height:1.6}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:22px 0 28px;
  border-top:1px solid var(--border);
  font-size:13px;color:var(--text-3);
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:34px}
  .footer-brand{grid-column:1 / -1}
  .footer-brand p{max-width:560px}
}
@media (max-width:1023px){
  .section{padding:64px 0}
  .page-hero{padding:52px 0 48px}
  .cta-banner{padding:36px 30px;gap:26px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;padding:56px 0 40px}
  .desktop-only{display:none!important}
  .nav-toggle{display:flex}
  .main-nav{
    position:fixed;left:0;right:0;top:76px;bottom:0;
    background:rgba(14,11,22,.98);
    backdrop-filter:blur(16px);
    -webkit-backdrop-filter:blur(16px);
    padding:20px 24px 120px;
    overflow-y:auto;
    transform:translateX(100%);
    transition:transform .22s var(--ease);
    z-index:70;
  }
  .main-nav.open{transform:translateX(0)}
  .main-nav ul{flex-direction:column;align-items:stretch;gap:0}
  .main-nav li{border-bottom:1px solid var(--border)}
  .main-nav a{display:block;padding:18px 4px;font-size:18px;border-radius:0;color:var(--text)}
  .main-nav a::after{display:none}
  .main-nav a.active{color:var(--cyan);text-shadow:none}
}
@media (max-width:767px){
  .group-card{padding:24px 20px 12px}
  .tip-panel{padding:24px 20px 18px}
  .entry-item{padding:14px 8px;gap:13px}
  .hero-actions{gap:12px}
  .hero-actions .btn{flex:1 1 180px}
}
@media (max-width:599px){
  .section{padding:48px 0}
  .page-hero{padding:42px 0 40px}
  .hero-lead{font-size:16px}
  .badges-row{gap:0;padding-top:22px}
  .data-badge{padding:0 18px}
  .data-badge b{font-size:22px}
  .badges-row{overflow-x:auto;flex-wrap:nowrap}
  .cta-banner{padding:30px 22px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding:44px 0 32px}
  .footer-form{flex-direction:column}
  .footer-form input,.footer-form .btn{width:100%}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
}

/* roulang page: category2 */
:root{
  --bg:#0E0B16;
  --surface:#181327;
  --surface-2:#221B36;
  --surface-3:#2B2340;
  --primary:#FF7A2F;
  --secondary:#FF3D71;
  --neon:#26E0C8;
  --gold:#FFC53D;
  --success:#3ED598;
  --warn:#FFB020;
  --text:#F4F1FF;
  --text-2:#ADA5C4;
  --text-3:#6F6788;
  --border:rgba(255,255,255,.08);
  --border-hover:rgba(255,122,47,.45);
  --grad:linear-gradient(135deg,#FF9A3C 0%,#FF3D71 100%);
  --panel-grad:linear-gradient(180deg,#1C1630 0%,#120E1E 100%);
  --radius-lg:22px;
  --radius-md:16px;
  --radius-sm:10px;
  --shadow:0 18px 40px -20px rgba(0,0,0,.8);
  --shadow-hover:0 26px 60px -22px rgba(255,61,113,.35);
  --num-font:"DIN Alternate","Barlow","Roboto Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  --font:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}

html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}

body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  background-image:
    radial-gradient(900px 520px at 12% -6%,rgba(255,122,47,.14),transparent 62%),
    radial-gradient(820px 480px at 92% 12%,rgba(255,61,113,.12),transparent 64%);
  background-repeat:no-repeat;
  overflow-x:hidden;
}

img{max-width:100%;display:block;border:0;}
a{color:var(--neon);text-decoration:none;transition:color 180ms ease-out,border-color 180ms ease-out,background-color 180ms ease-out,transform 180ms ease-out;}
a:hover{color:#fff;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.35;letter-spacing:-.2px;color:var(--text);}
p{margin:0 0 1em;color:var(--text-2);}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
table{border-collapse:collapse;width:100%;margin:0;background:transparent;border:0;}
th,td{text-align:left;}

:focus-visible{outline:2px solid var(--neon);outline-offset:2px;border-radius:6px;}

.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}

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

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:11px 22px;
  font-size:15px;
  font-weight:600;
  border-radius:var(--radius-sm);
  border:1px solid transparent;
  cursor:pointer;
  white-space:nowrap;
  transition:transform 180ms ease-out,box-shadow 180ms ease-out,border-color 180ms ease-out,background 180ms ease-out,color 180ms ease-out;
}
.btn-primary{
  background:var(--grad);
  color:#1A0E14;
  box-shadow:0 10px 24px -10px rgba(255,61,113,.6),inset 0 1px 0 rgba(255,255,255,.35);
}
.btn-primary:hover,.btn-primary:focus{
  color:#1A0E14;
  transform:translateY(-2px);
  box-shadow:0 16px 34px -10px rgba(255,61,113,.75),inset 0 1px 0 rgba(255,255,255,.45);
}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{
  background:transparent;
  border-color:rgba(255,255,255,.18);
  color:var(--text);
}
.btn-ghost:hover,.btn-ghost:focus{
  border-color:var(--primary);
  color:#fff;
  transform:translateY(-2px);
}
.btn-text{
  background:none;
  border:0;
  padding:0;
  min-height:auto;
  color:var(--neon);
  font-weight:600;
  font-size:14.5px;
}
.btn-text i{transition:transform 180ms ease-out;}
.btn-text:hover i{transform:translateX(3px);}

/* ---------- 徽章 / 标签 ---------- */
.badges-row{
  display:flex;
  flex-wrap:wrap;
  align-items:stretch;
  gap:0;
}
.data-badge{
  display:inline-flex;
  flex-direction:column;
  justify-content:center;
  gap:2px;
  padding:10px 22px 10px 0;
  margin-right:22px;
  border-right:1px solid rgba(255,255,255,.12);
  font-size:13px;
  line-height:1.5;
  color:var(--text-3);
}
.data-badge:last-child{border-right:0;margin-right:0;padding-right:0;}
.data-badge b{
  font-family:var(--num-font);
  font-size:24px;
  font-weight:700;
  line-height:1.1;
  background:var(--grad);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
  letter-spacing:.5px;
}
.data-badge.on b{color:var(--neon);background:none;-webkit-text-fill-color:currentColor;}

.tier-badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 12px;
  font-size:12.5px;
  font-weight:600;
  border-radius:999px;
  color:var(--neon);
  background:rgba(38,224,200,.08);
  border:1px solid rgba(38,224,200,.45);
}
.tier-badge.gold{
  color:var(--gold);
  background:rgba(255,197,61,.1);
  border-color:rgba(255,197,61,.55);
}

.tag{
  display:inline-flex;
  align-items:center;
  padding:3px 11px;
  font-size:12px;
  line-height:1.6;
  border-radius:999px;
  color:var(--neon);
  background:rgba(38,224,200,.08);
  border:1px solid rgba(38,224,200,.4);
  transition:background 180ms ease-out,color 180ms ease-out;
}
.tag:hover{background:rgba(38,224,200,.2);color:#fff;}

/* ---------- 顶栏 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(14,11,22,.82);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--border);
  transition:background 200ms ease-out,border-color 200ms ease-out;
}
.site-header.is-scrolled{
  background:rgba(14,11,22,.94);
  border-bottom-color:transparent;
  box-shadow:0 1px 0 rgba(255,122,47,.35),0 12px 30px -24px rgba(255,61,113,.7);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  min-height:72px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--text);
  flex:0 0 auto;
}
.brand:hover{color:var(--text);}
.brand-mark{
  width:26px;
  height:26px;
  border-radius:8px;
  background:var(--grad);
  box-shadow:0 0 0 1px rgba(255,255,255,.18),0 0 18px rgba(255,122,47,.55);
  position:relative;
}
.brand-mark::after{
  content:"";
  position:absolute;
  inset:7px;
  border-radius:3px;
  background:rgba(14,11,22,.85);
}
.brand-name{
  font-size:19px;
  font-weight:700;
  letter-spacing:-.3px;
  white-space:nowrap;
}
.main-nav ul{
  display:flex;
  align-items:center;
  gap:6px;
}
.main-nav a{
  position:relative;
  display:inline-block;
  padding:10px 14px;
  font-size:15px;
  color:var(--text-2);
  border-radius:var(--radius-sm);
  transition:color 180ms ease-out,text-shadow 180ms ease-out;
}
.main-nav a::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:4px;
  width:0;
  height:2px;
  background:var(--neon);
  border-radius:2px;
  transform:translateX(-50%);
  transition:width 200ms ease-out,background 200ms ease-out;
}
.main-nav a:hover{color:var(--text);}
.main-nav a:hover::after{width:60%;}
.main-nav a.active{
  color:var(--text);
  text-shadow:0 0 12px rgba(38,224,200,.55);
}
.main-nav a.active::after{
  width:60%;
  background:var(--grad);
}
.header-actions{
  display:flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
}
.nav-toggle{
  display:none;
  flex-direction:column;
  justify-content:center;
  gap:5px;
  width:44px;
  height:44px;
  padding:0 10px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--border);
  border-radius:var(--radius-sm);
  cursor:pointer;
}
.nav-toggle span{
  display:block;
  height:2px;
  width:100%;
  border-radius:2px;
  background:var(--grad);
  transition:transform 220ms ease-out,opacity 220ms ease-out;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ---------- 内页首屏 ---------- */
.page-hero{
  position:relative;
  overflow:hidden;
  padding:92px 0 68px;
  border-bottom:1px solid var(--border);
  background-image:
    linear-gradient(90deg,rgba(14,11,22,.95) 0%,rgba(14,11,22,.78) 48%,rgba(14,11,22,.52) 100%),
    url(/assets/images/backpic/back-1.png);
  background-size:cover;
  background-position:center;
}
.page-hero::after{
  content:"";
  position:absolute;
  right:-160px;
  bottom:-220px;
  width:620px;
  height:620px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(255,61,113,.18),transparent 68%);
  pointer-events:none;
}
.hero-inner{position:relative;z-index:2;max-width:840px;}
.hero-eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:5px 14px;
  margin-bottom:20px;
  font-size:13px;
  color:var(--neon);
  border-radius:999px;
  background:rgba(38,224,200,.08);
  border:1px solid rgba(38,224,200,.4);
}
.page-hero h1{
  font-size:clamp(30px,5vw,52px);
  font-weight:800;
  letter-spacing:-.5px;
  line-height:1.22;
  margin-bottom:18px;
}
.page-hero h1 em{
  font-style:normal;
  background:var(--grad);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero-sub{
  font-size:16.5px;
  line-height:1.85;
  color:var(--text-2);
  max-width:720px;
  margin-bottom:28px;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-bottom:34px;
}
.hero-badges{border-top:1px solid rgba(255,255,255,.1);padding-top:22px;}

/* ---------- 板块 ---------- */
.section{padding:88px 0;}
.section.tight{padding:64px 0;}
.section.alt{
  background:var(--panel-grad);
  border-top:1px solid rgba(255,255,255,.06);
  border-bottom:1px solid rgba(255,255,255,.06);
}
.section-head{max-width:760px;margin-bottom:38px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-title{
  position:relative;
  display:inline-block;
  padding-left:16px;
  font-size:clamp(22px,3vw,32px);
  font-weight:700;
}
.section-title::before{
  content:"";
  position:absolute;
  left:0;
  top:.22em;
  bottom:.22em;
  width:4px;
  border-radius:2px;
  background:var(--grad);
}
.section-title::after{
  content:"";
  display:block;
  width:40px;
  height:3px;
  margin-top:12px;
  border-radius:2px;
  background:var(--grad);
}
.section-head.center .section-title{padding-left:0;padding-top:0;}
.section-head.center .section-title::before{display:none;}
.section-head.center .section-title::after{margin-left:auto;margin-right:auto;}
.section-sub{
  margin-top:16px;
  font-size:15.5px;
  line-height:1.85;
  color:var(--text-2);
}

/* ---------- 对比矩阵 ---------- */
.compare-wrap{
  overflow-x:auto;
  border-radius:var(--radius-lg);
  border:1px solid var(--border);
  background:var(--panel-grad);
  box-shadow:var(--shadow);
  -webkit-overflow-scrolling:touch;
}
.compare-table{
  min-width:820px;
  font-size:14.8px;
}
.compare-table th,
.compare-table td{
  padding:16px 20px;
  border-bottom:1px solid var(--border);
  vertical-align:middle;
}
.compare-table thead th{
  position:sticky;
  top:0;
  z-index:2;
  background:#1B1531;
  font-size:15px;
  font-weight:700;
  color:var(--text);
  white-space:nowrap;
}
.compare-table thead th:first-child{
  font-weight:600;
  color:var(--text-2);
}
.compare-table tbody tr:last-child td{border-bottom:0;}
.compare-table tbody tr{transition:background 180ms ease-out;}
.compare-table tbody tr:hover{background:rgba(255,255,255,.035);}
.compare-table tbody th{
  font-weight:600;
  color:var(--text);
  width:210px;
}
.compare-table td{color:var(--text-2);}
.compare-table td .num{
  font-family:var(--num-font);
  font-size:19px;
  font-weight:700;
  color:var(--text);
  letter-spacing:.4px;
}
.col-top{
  background:rgba(255,122,47,.06);
  box-shadow:inset 0 2px 0 0 var(--grad);
  border-left:1px solid rgba(255,122,47,.22);
}
.compare-table th.col-top{color:var(--text);}
.tick{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:22px;
  height:22px;
  margin-right:8px;
  border-radius:50%;
  font-size:12px;
  color:#0E0B16;
  background:var(--success);
  vertical-align:middle;
}
.dash{
  display:inline-block;
  width:16px;
  height:2px;
  margin-right:8px;
  border-radius:2px;
  background:var(--text-3);
  vertical-align:middle;
}
.legend{
  display:flex;
  flex-wrap:wrap;
  gap:22px;
  margin-top:18px;
  font-size:13.5px;
  color:var(--text-3);
}
.legend span{display:inline-flex;align-items:center;}

/* ---------- 图文条目卡 ---------- */
.split-list{display:grid;gap:26px;}
.split-card{
  display:grid;
  grid-template-columns:minmax(0,4fr) minmax(0,7fr);
  gap:0;
  align-items:stretch;
  border-radius:var(--radius-lg);
  border:1px solid var(--border);
  background:var(--panel-grad);
  box-shadow:var(--shadow);
  overflow:hidden;
  transition:transform 180ms ease-out,border-color 180ms ease-out,box-shadow 180ms ease-out;
}
.split-card:hover{
  transform:translateY(-4px);
  border-color:var(--border-hover);
  box-shadow:var(--shadow-hover);
}
.split-card.reverse{grid-template-columns:minmax(0,7fr) minmax(0,4fr);}
.split-card.reverse .split-media{order:2;}
.split-card.reverse .split-body{order:1;}
.split-media{
  position:relative;
  border-right:1px solid rgba(38,224,200,.28);
  overflow:hidden;
}
.split-card.reverse .split-media{border-right:0;border-left:1px solid rgba(38,224,200,.28);}
.split-media img{
  width:100%;
  height:100%;
  aspect-ratio:4/3;
  object-fit:cover;
}
.split-media::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(14,11,22,.15) 0%,rgba(14,11,22,.62) 100%);
}
.split-body{
  padding:28px 30px;
  display:flex;
  flex-direction:column;
  gap:14px;
}
.split-body h3{
  font-size:20px;
  font-weight:600;
  display:flex;
  align-items:center;
  gap:12px;
  flex-wrap:wrap;
}
.split-body p{font-size:15px;line-height:1.85;margin:0;}
.point-list{display:grid;gap:10px;margin-top:2px;}
.point-list li{
  position:relative;
  padding-left:20px;
  font-size:14.5px;
  line-height:1.75;
  color:var(--text-2);
}
.point-list li::before{
  content:"";
  position:absolute;
  left:0;
  top:.62em;
  width:8px;
  height:8px;
  border-radius:2px;
  background:var(--neon);
}

/* ---------- 权益提示卡 ---------- */
.note-card{
  display:grid;
  grid-template-columns:auto minmax(0,1fr) auto;
  align-items:center;
  gap:24px;
  padding:26px 30px;
  border-radius:var(--radius-lg);
  border:1px solid rgba(255,197,61,.32);
  background:linear-gradient(120deg,rgba(255,197,61,.09) 0%,rgba(24,19,39,.9) 55%);
  box-shadow:var(--shadow);
}
.note-icon{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:52px;
  height:52px;
  border-radius:14px;
  font-size:22px;
  color:var(--gold);
  background:rgba(255,197,61,.12);
  border:1px solid rgba(255,197,61,.45);
}
.note-card h3{font-size:18px;margin-bottom:6px;}
.note-card p{font-size:14.5px;line-height:1.8;margin:0;}

/* ---------- 覆盖范围条目 ---------- */
.cover-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
.cover-item{
  display:flex;
  gap:16px;
  padding:22px 24px;
  border-radius:var(--radius-md);
  border:1px solid var(--border);
  background:var(--surface);
  transition:transform 180ms ease-out,border-color 180ms ease-out,box-shadow 180ms ease-out;
}
.cover-item:hover{
  transform:translateY(-4px);
  border-color:var(--border-hover);
  box-shadow:var(--shadow-hover);
}
.cover-num{
  flex:0 0 auto;
  width:42px;
  height:42px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:12px;
  font-family:var(--num-font);
  font-size:17px;
  font-weight:700;
  color:var(--neon);
  background:rgba(38,224,200,.08);
  border:1px solid rgba(38,224,200,.4);
}
.cover-item h3{font-size:16.5px;margin-bottom:6px;}
.cover-item p{font-size:14.5px;line-height:1.8;margin:0;}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:12px;max-width:920px;}
.faq-item{
  border-radius:14px;
  border:1px solid var(--border);
  background:var(--surface);
  overflow:hidden;
  transition:border-color 180ms ease-out,background 180ms ease-out;
}
.faq-item[open]{
  border-color:rgba(255,122,47,.4);
  background:var(--surface-2);
}
.faq-item summary{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:18px 22px 18px 24px;
  font-size:16px;
  font-weight:600;
  color:var(--text-2);
  cursor:pointer;
  list-style:none;
  min-height:44px;
  transition:color 180ms ease-out;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::before{
  content:"";
  position:absolute;
  left:0;
  top:14px;
  bottom:14px;
  width:3px;
  border-radius:0 3px 3px 0;
  background:var(--grad);
  opacity:0;
  transition:opacity 180ms ease-out;
}
.faq-item summary::after{
  content:"+";
  flex:0 0 auto;
  font-family:var(--num-font);
  font-size:22px;
  line-height:1;
  color:var(--text-3);
  transition:transform 220ms ease-out,color 180ms ease-out;
}
.faq-item[open] summary{color:var(--text);}
.faq-item[open] summary::before{opacity:1;}
.faq-item[open] summary::after{content:"−";color:var(--neon);transform:rotate(180deg);}
.faq-item summary:hover{color:var(--text);}
.faq-body{
  padding:0 24px 22px 24px;
  font-size:15px;
  line-height:1.8;
  color:var(--text-2);
}
.faq-body p{margin:0;font-size:15px;line-height:1.8;}

/* ---------- 收尾 CTA ---------- */
.cta-card{
  position:relative;
  overflow:hidden;
  display:grid;
  grid-template-columns:minmax(0,1fr) auto;
  align-items:center;
  gap:32px;
  padding:44px 46px;
  border-radius:var(--radius-lg);
  background:var(--grad);
  box-shadow:0 24px 60px -28px rgba(255,61,113,.85);
}
.cta-card::after{
  content:"";
  position:absolute;
  inset:0;
  background:radial-gradient(520px 320px at 88% 12%,rgba(14,11,22,.32),transparent 70%);
  pointer-events:none;
}
.cta-copy{position:relative;z-index:2;}
.cta-card h2{
  font-size:clamp(22px,3vw,30px);
  color:#1A0E14;
  margin-bottom:10px;
}
.cta-card p{
  color:rgba(26,14,20,.78);
  font-size:15.5px;
  line-height:1.8;
  max-width:640px;
  margin:0;
}
.cta-actions{
  position:relative;
  z-index:2;
  display:flex;
  flex-wrap:wrap;
  gap:14px;
}
.cta-card .btn-ghost{
  border-color:rgba(26,14,20,.35);
  color:#1A0E14;
}
.cta-card .btn-ghost:hover{border-color:#1A0E14;color:#1A0E14;background:rgba(255,255,255,.16);}
.cta-card .btn-primary{
  background:#0E0B16;
  color:var(--text);
  box-shadow:0 12px 28px -12px rgba(14,11,22,.9);
}
.cta-card .btn-primary:hover{color:#fff;}

/* ---------- 页脚 ---------- */
.site-footer{
  border-top:1px solid var(--border);
  background:linear-gradient(180deg,#120E1E 0%,#0B0813 100%);
  padding:72px 0 28px;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.3fr;
  gap:40px;
}
.footer-brand p{
  margin:16px 0 20px;
  font-size:14.5px;
  line-height:1.85;
  color:var(--text-2);
  max-width:320px;
}
.footer-col h3{
  font-size:15px;
  font-weight:600;
  color:var(--text);
  margin-bottom:16px;
}
.footer-col ul{display:grid;gap:11px;}
.footer-col a{
  display:inline-block;
  font-size:14.5px;
  color:var(--text-2);
  transition:color 180ms ease-out,transform 180ms ease-out;
}
.footer-col a:hover{color:var(--text);transform:translateX(2px);}
.footer-form{display:flex;gap:10px;}
.footer-form input{
  flex:1 1 auto;
  min-width:0;
  min-height:44px;
  padding:10px 14px;
  font-size:14.5px;
  font-family:inherit;
  color:var(--text);
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius-sm);
  transition:border-color 180ms ease-out,box-shadow 180ms ease-out;
}
.footer-form input::placeholder{color:var(--text-3);}
.footer-form input:focus{
  outline:none;
  border-color:var(--neon);
  box-shadow:0 0 0 3px rgba(38,224,200,.18);
}
.form-hint{font-size:13px;color:var(--text-3);margin-top:10px;}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:12px;
  margin-top:52px;
  padding-top:22px;
  border-top:1px solid var(--border);
  font-size:13.5px;
  color:var(--text-3);
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .footer-grid{grid-template-columns:1.3fr 1fr 1fr;gap:34px;}
  .footer-col:last-child{grid-column:1 / -1;}
}

@media (max-width:1023px){
  .container{padding:0 20px;}
  .section{padding:64px 0;}
  .section.tight{padding:52px 0;}
  .page-hero{padding:68px 0 54px;}
  .desktop-only{display:none;}
  .nav-toggle{display:flex;}
  .main-nav{
    position:fixed;
    top:72px;
    left:0;
    right:0;
    bottom:0;
    z-index:55;
    padding:18px 20px 120px;
    background:rgba(14,11,22,.98);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    overflow-y:auto;
    opacity:0;
    visibility:hidden;
    transform:translateY(-10px);
    transition:opacity 220ms ease-out,transform 220ms ease-out,visibility 220ms ease-out;
  }
  .main-nav.open{opacity:1;visibility:visible;transform:translateY(0);}
  .main-nav ul{flex-direction:column;align-items:stretch;gap:0;}
  .main-nav li{border-bottom:1px solid var(--border);}
  .main-nav a{
    display:block;
    padding:16px 4px;
    font-size:18px;
    border-radius:0;
  }
  .main-nav a::after{left:4px;transform:none;bottom:8px;}
  .main-nav a.active::after{width:42px;}
  .main-nav a:hover::after{width:42px;}
  .split-card,
  .split-card.reverse{grid-template-columns:1fr;}
  .split-card.reverse .split-media{order:1;border-left:0;border-right:0;}
  .split-card.reverse .split-body{order:2;}
  .split-media{border-right:0;border-bottom:1px solid rgba(38,224,200,.28);}
  .split-media img{aspect-ratio:16/9;}
  .cover-grid{grid-template-columns:1fr;}
  .note-card{grid-template-columns:auto minmax(0,1fr);gap:18px;}
  .note-card .btn{grid-column:1 / -1;justify-self:start;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .footer-col:last-child{grid-column:1 / -1;}
  .cta-card{grid-template-columns:1fr;padding:36px 30px;gap:24px;}
  .cta-actions{width:100%;}
}

@media (max-width:599px){
  .container{padding:0 16px;}
  .section{padding:48px 0;}
  .section.tight{padding:44px 0;}
  .page-hero{padding:54px 0 46px;}
  .header-inner{min-height:64px;gap:12px;}
  .brand-name{font-size:16.5px;}
  .main-nav{top:64px;}
  .hero-actions .btn{width:100%;}
  .hero-badges{
    display:flex;
    flex-wrap:nowrap;
    overflow-x:auto;
    padding-bottom:4px;
    -webkit-overflow-scrolling:touch;
  }
  .hero-badges .data-badge{flex:0 0 auto;}
  .split-body{padding:22px 20px;}
  .compare-table{min-width:680px;font-size:14px;}
  .compare-table th,
  .compare-table td{padding:13px 15px;}
  .compare-table tbody th{width:150px;}
  .note-card{grid-template-columns:1fr;padding:22px 20px;}
  .note-icon{width:44px;height:44px;font-size:19px;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer-form{flex-direction:column;}
  .footer-form .btn{width:100%;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .cta-card{padding:30px 22px;}
  .cta-actions .btn{width:100%;}
}

/* roulang page: category3 */
:root{
  --bg:#0E0B16;
  --surface:#181327;
  --surface-2:#221B36;
  --surface-3:#2B2340;
  --primary:#FF7A2F;
  --secondary:#FF3D71;
  --brand-grad:linear-gradient(135deg,#FF9A3C 0%,#FF3D71 100%);
  --neon:#26E0C8;
  --gold:#FFC53D;
  --text:#F4F1FF;
  --text-2:#ADA5C4;
  --text-3:#6F6788;
  --success:#3ED598;
  --warn:#FFB020;
  --border:rgba(255,255,255,.08);
  --border-strong:rgba(255,255,255,.16);
  --border-hover:rgba(255,122,47,.45);
  --r-lg:22px;
  --r-md:16px;
  --r-sm:10px;
  --r-pill:999px;
  --shadow:0 18px 40px -20px rgba(0,0,0,.8);
  --shadow-hover:0 26px 60px -22px rgba(255,61,113,.35);
  --mono:"DIN Alternate","Barlow","Roboto Mono","SFMono-Regular",ui-monospace,Menlo,monospace;
  --container:1200px;
}

*,*::before,*::after{box-sizing:border-box}

html{-webkit-text-size-adjust:100%}

body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .18s ease-out}
p{margin:0 0 1em}
h1,h2,h3,h4{margin:0;line-height:1.35;font-weight:700;color:var(--text)}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}

:focus-visible{outline:2px solid var(--neon);outline-offset:2px;border-radius:6px}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(14,11,22,.74);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--border);
  transition:background .22s ease-out,border-color .22s ease-out;
}
.site-header::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-1px;
  height:1px;
  background:linear-gradient(90deg,rgba(255,122,47,0) 0%,rgba(255,122,47,.6) 35%,rgba(255,61,113,.6) 70%,rgba(255,61,113,0) 100%);
  opacity:0;
  transition:opacity .22s ease-out;
}
.site-header.is-scrolled{background:rgba(14,11,22,.94);border-bottom-color:transparent}
.site-header.is-scrolled::after{opacity:1}

.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  min-height:72px;
}

.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  position:relative;
  width:28px;height:28px;
  border-radius:9px;
  background:var(--brand-grad);
  box-shadow:0 0 18px rgba(255,61,113,.5),inset 0 0 0 1px rgba(255,255,255,.22);
  flex-shrink:0;
}
.brand-mark::after{
  content:"";
  position:absolute;
  inset:7px;
  border:2px solid rgba(14,11,22,.78);
  border-radius:3px;
}
.brand-name{font-size:19px;font-weight:700;letter-spacing:.2px;color:var(--text);white-space:nowrap}

.main-nav ul{display:flex;align-items:center;gap:28px}
.main-nav a{
  position:relative;
  display:inline-block;
  font-size:15px;
  color:var(--text-2);
  padding:6px 2px;
  white-space:nowrap;
}
.main-nav a::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:-2px;
  width:0;
  height:2px;
  transform:translateX(-50%);
  border-radius:2px;
  background:var(--neon);
  transition:width .22s ease-out,background .22s ease-out;
}
.main-nav a:hover{color:var(--text)}
.main-nav a:hover::after{width:60%}
.main-nav a.active{
  color:var(--text);
  text-shadow:0 0 12px rgba(38,224,200,.55);
}
.main-nav a.active::after{width:100%;background:var(--brand-grad)}

.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:0 20px;
  border-radius:var(--r-sm);
  font-size:15px;
  font-weight:600;
  line-height:1;
  cursor:pointer;
  border:1px solid transparent;
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out,color .18s ease-out,background .18s ease-out;
}
.btn-primary{
  background:var(--brand-grad);
  color:#fff;
  box-shadow:0 10px 24px -10px rgba(255,61,113,.6),inset 0 0 0 1px rgba(255,255,255,.18);
}
.btn-primary:hover{
  transform:translateY(-2px);
  box-shadow:0 16px 34px -12px rgba(255,61,113,.85),inset 0 0 0 1px rgba(255,255,255,.28);
}
.btn-ghost{
  background:transparent;
  border-color:rgba(255,255,255,.18);
  color:var(--text);
}
.btn-ghost:hover{border-color:var(--primary);color:#fff;transform:translateY(-2px)}
.btn-light{
  background:#fff;
  color:#5A1420;
  box-shadow:0 12px 26px -14px rgba(0,0,0,.7);
}
.btn-light:hover{transform:translateY(-2px);box-shadow:0 18px 34px -16px rgba(0,0,0,.85)}
.btn:active{transform:translateY(0)}

.nav-toggle{
  display:none;
  flex-direction:column;
  justify-content:center;
  gap:5px;
  width:44px;height:44px;
  padding:0 11px;
  background:transparent;
  border:1px solid var(--border-strong);
  border-radius:var(--r-sm);
  cursor:pointer;
}
.nav-toggle span{
  display:block;
  height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--primary),var(--secondary));
  transition:transform .22s ease-out,opacity .22s ease-out;
}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- hero ---------- */
.page-hero{
  position:relative;
  overflow:hidden;
  padding:84px 0 76px;
  background-color:var(--bg);
  background-image:linear-gradient(90deg,rgba(14,11,22,.96) 0%,rgba(14,11,22,.84) 46%,rgba(14,11,22,.46) 100%),url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  border-bottom:1px solid rgba(255,255,255,.06);
}
.page-hero::before{
  content:"";
  position:absolute;
  width:620px;height:620px;
  right:-160px;top:-220px;
  background:radial-gradient(circle,rgba(255,122,47,.13) 0%,rgba(255,61,113,.07) 42%,transparent 70%);
  filter:blur(60px);
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:2}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  letter-spacing:.04em;
  color:var(--neon);
  padding:6px 14px;
  border-radius:var(--r-pill);
  border:1px solid rgba(38,224,200,.35);
  background:rgba(38,224,200,.08);
}
.eyebrow .dot{
  width:6px;height:6px;border-radius:50%;
  background:var(--neon);
  box-shadow:0 0 10px rgba(38,224,200,.9);
}

.hero-title{
  font-size:clamp(30px,5vw,52px);
  font-weight:800;
  letter-spacing:-.5px;
  line-height:1.22;
  margin:22px 0 18px;
  max-width:900px;
}
.hero-sub{
  font-size:17px;
  line-height:1.9;
  color:var(--text-2);
  max-width:700px;
  margin:0;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin:32px 0 36px;
}

.badges-row{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:16px;
}
.badge-divider{width:1px;height:28px;background:var(--border)}
.data-badge{
  display:inline-flex;
  align-items:baseline;
  gap:7px;
  padding:7px 14px;
  border-radius:var(--r-pill);
  background:rgba(38,224,200,.08);
  border:1px solid rgba(38,224,200,.35);
  color:var(--neon);
  font-size:13px;
  line-height:1.4;
  white-space:nowrap;
}
.data-badge b{
  font-family:var(--mono);
  font-size:20px;
  font-weight:700;
  letter-spacing:.02em;
}
.data-badge span{color:var(--text-2)}
.data-badge.gold{
  color:var(--gold);
  background:rgba(255,197,61,.08);
  border-color:rgba(255,197,61,.38);
}

/* ---------- sections ---------- */
.section{padding:88px 0}
.section--line{border-top:1px solid rgba(255,255,255,.06)}
.section-head{max-width:780px;margin-bottom:44px}
.section-title{
  position:relative;
  padding-left:16px;
  font-size:clamp(22px,3vw,32px);
  font-weight:700;
  letter-spacing:-.2px;
}
.section-title::before{
  content:"";
  position:absolute;
  left:0;top:.18em;bottom:.18em;
  width:4px;
  border-radius:3px;
  background:var(--brand-grad);
}
.title-underline{
  width:40px;height:3px;
  border-radius:3px;
  background:var(--brand-grad);
  margin:14px 0 16px 16px;
}
.section-desc{color:var(--text-2);font-size:16px;line-height:1.9;margin:0}

/* ---------- flow timeline ---------- */
.flow{
  position:relative;
  padding-left:44px;
  margin-top:8px;
}
.flow::before{
  content:"";
  position:absolute;
  left:12px;
  top:10px;
  bottom:26px;
  width:2px;
  border-radius:2px;
  background:linear-gradient(180deg,#FF9A3C 0%,#FF3D71 52%,#26E0C8 100%);
  opacity:.75;
}
.step{
  position:relative;
  margin-bottom:28px;
}
.step::before{
  content:"";
  position:absolute;
  left:-38px;
  top:26px;
  width:14px;height:14px;
  border-radius:50%;
  background:var(--bg);
  border:2px solid var(--neon);
  box-shadow:0 0 12px rgba(38,224,200,.5);
  transition:box-shadow .22s ease-out;
}
.step:hover::before{box-shadow:0 0 20px rgba(38,224,200,.9)}
.step.is-active::before{
  background:var(--brand-grad);
  border-color:rgba(255,197,61,.9);
  box-shadow:0 0 22px rgba(255,122,47,.9);
}
.step-card{
  background:linear-gradient(180deg,#1C1630 0%,#120E1E 100%);
  border:1px solid var(--border);
  border-radius:var(--r-lg);
  padding:26px 28px;
  box-shadow:var(--shadow);
  transition:border-color .18s ease-out,box-shadow .18s ease-out,transform .18s ease-out;
}
.step-card:hover{
  border-color:var(--border-hover);
  box-shadow:var(--shadow-hover);
  transform:translateY(-2px);
}
.step-top{
  display:flex;
  align-items:center;
  gap:14px;
  margin-bottom:12px;
}
.step-num{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-width:46px;
  height:34px;
  padding:0 10px;
  border-radius:10px;
  background:rgba(38,224,200,.08);
  border:1px solid rgba(38,224,200,.32);
  color:var(--neon);
  font-family:var(--mono);
  font-size:17px;
  font-weight:700;
  letter-spacing:.06em;
}
.step.is-active .step-num{
  background:rgba(255,197,61,.1);
  border-color:rgba(255,197,61,.4);
  color:var(--gold);
}
.step-title{font-size:20px;font-weight:600;line-height:1.4}
.step-text{color:var(--text-2);font-size:15.5px;line-height:1.85;margin:0}
.step-meta{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-top:16px;
}
.tag{
  display:inline-flex;
  align-items:center;
  font-size:12px;
  line-height:1;
  padding:7px 12px;
  border-radius:var(--r-pill);
  color:var(--neon);
  background:rgba(38,224,200,.08);
  border:1px solid rgba(38,224,200,.35);
  transition:background .18s ease-out,color .18s ease-out;
}
.tag:hover{background:rgba(38,224,200,.2);color:#EAFFFB}
.step-media{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
  border-radius:14px;
  margin-top:18px;
  border:1px solid var(--border);
}

.flow-aside{
  position:relative;
  margin:0 0 28px;
}
.flow-aside::before{
  content:"";
  position:absolute;
  left:-32px;
  top:34px;
  width:10px;height:10px;
  border-radius:50%;
  background:var(--gold);
  box-shadow:0 0 16px rgba(255,197,61,.85);
}
.stat-card{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:0;
  background:linear-gradient(180deg,#1C1630 0%,#120E1E 100%);
  border:1px solid var(--border);
  border-radius:var(--r-lg);
  padding:26px 8px;
  box-shadow:var(--shadow);
}
.stat-item{
  padding:0 24px;
  border-right:1px solid var(--border);
}
.stat-item:last-child{border-right:0}
.stat-num{
  font-family:var(--mono);
  font-size:32px;
  font-weight:700;
  line-height:1.1;
  background:linear-gradient(135deg,#FF9A3C,#FF3D71);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.stat-label{display:block;font-size:13px;color:var(--text-3);margin-top:6px}

/* ---------- rhythm cards ---------- */
.rhythm-grid{margin-top:4px}
.rhythm-card{
  height:100%;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--r-md);
  padding:26px 24px;
  position:relative;
  overflow:hidden;
  transition:border-color .18s ease-out,box-shadow .18s ease-out,transform .18s ease-out;
}
.rhythm-card::before{
  content:"";
  position:absolute;
  left:0;top:26px;
  width:2px;height:18px;
  border-radius:2px;
  background:var(--neon);
  box-shadow:0 0 10px rgba(38,224,200,.75);
}
.rhythm-card:hover{
  border-color:var(--border-hover);
  box-shadow:var(--shadow-hover);
  transform:translateY(-4px);
}
.rhythm-card h3{font-size:18px;font-weight:600;margin-bottom:10px}
.rhythm-card p{color:var(--text-2);font-size:15px;line-height:1.85;margin:0}
.rhythm-card .data-badge{margin-top:18px}

/* ---------- faq ---------- */
.faq-list{max-width:900px}
.faq-item{
  position:relative;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:14px;
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color .18s ease-out,background .18s ease-out;
}
.faq-item:hover{border-color:var(--border-hover)}
.faq-item[open]{
  background:var(--surface-2);
  border-color:rgba(255,122,47,.32);
}
.faq-item[open]::before{
  content:"";
  position:absolute;
  left:0;top:0;bottom:0;
  width:3px;
  background:var(--brand-grad);
}
.faq-q{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:20px 24px;
  font-size:17px;
  font-weight:600;
  color:var(--text-2);
  transition:color .18s ease-out;
}
.faq-q::-webkit-details-marker{display:none}
.faq-item[open] .faq-q{color:var(--text)}
.faq-q:hover{color:var(--text)}
.faq-icon{
  position:relative;
  flex:0 0 22px;
  width:22px;height:22px;
  border-radius:50%;
  border:1px solid rgba(38,224,200,.45);
  transition:background .2s ease-out,transform .2s ease-out;
}
.faq-icon::before,.faq-icon::after{
  content:"";
  position:absolute;
  left:50%;top:50%;
  background:var(--neon);
  border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:10px;height:2px}
.faq-icon::after{width:2px;height:10px;transition:opacity .2s ease-out}
.faq-item[open] .faq-icon{background:rgba(38,224,200,.16);transform:rotate(180deg)}
.faq-item[open] .faq-icon::after{opacity:0}
.faq-a{
  padding:0 24px 22px;
  color:var(--text-2);
  font-size:15px;
  line-height:1.85;
  margin:0;
}

/* ---------- content cards ---------- */
.content-card{
  display:flex;
  flex-direction:column;
  height:100%;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--r-lg);
  overflow:hidden;
  transition:border-color .18s ease-out,box-shadow .18s ease-out,transform .18s ease-out;
}
.content-card:hover{
  border-color:var(--border-hover);
  box-shadow:var(--shadow-hover);
  transform:translateY(-4px);
}
.card-media{
  position:relative;
  width:100%;
  aspect-ratio:16/9;
  overflow:hidden;
}
.card-media img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .35s ease-out;
}
.content-card:hover .card-media img{transform:scale(1.04)}
.card-body{
  display:flex;
  flex-direction:column;
  flex:1;
  padding:20px 22px 22px;
}
.card-body .tag{align-self:flex-start;margin-bottom:14px}
.card-title{
  font-size:18px;
  font-weight:600;
  line-height:1.5;
  margin-bottom:10px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.card-title a:hover{color:var(--primary)}
.card-text{
  color:var(--text-2);
  font-size:14.5px;
  line-height:1.8;
  margin:0 0 16px;
  display:-webkit-box;
  -webkit-line-clamp:3;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.card-foot{
  margin-top:auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding-top:14px;
  border-top:1px solid var(--border);
  font-size:13px;
  color:var(--text-3);
}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--neon);
  font-size:14px;
  font-weight:600;
}
.text-link i{transition:transform .18s ease-out}
.text-link:hover i{transform:translateX(3px)}

/* ---------- cta band ---------- */
.cta-band{
  position:relative;
  overflow:hidden;
  border-radius:var(--r-lg);
  background:var(--brand-grad);
  padding:44px 46px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  box-shadow:0 26px 60px -28px rgba(255,61,113,.6);
}
.cta-band::before{
  content:"";
  position:absolute;
  width:520px;height:520px;
  right:-140px;top:-220px;
  background:radial-gradient(circle,rgba(14,11,22,.42) 0%,transparent 68%);
  pointer-events:none;
}
.cta-copy{position:relative;z-index:2;max-width:640px}
.cta-copy h2{
  font-size:clamp(22px,2.6vw,30px);
  font-weight:800;
  color:#fff;
  letter-spacing:-.2px;
  margin-bottom:12px;
}
.cta-copy p{
  color:rgba(255,255,255,.9);
  font-size:15.5px;
  line-height:1.85;
  margin:0;
}
.cta-band .cta-actions{position:relative;z-index:2;display:flex;gap:14px;flex-wrap:wrap}
.cta-band .btn-ghost{border-color:rgba(255,255,255,.55);color:#fff}
.cta-band .btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.12)}

/* ---------- footer ---------- */
.site-footer{
  margin-top:88px;
  border-top:1px solid rgba(255,255,255,.06);
  background:linear-gradient(180deg,#120E1E 0%,#0B0813 100%);
  padding:64px 0 28px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.4fr;
  gap:40px;
  padding-bottom:40px;
  border-bottom:1px solid var(--border);
}
.footer-brand p{
  color:var(--text-2);
  font-size:14.5px;
  line-height:1.85;
  margin:16px 0 18px;
  max-width:340px;
}
.footer-col h3{
  font-size:15px;
  font-weight:600;
  color:var(--text);
  margin-bottom:16px;
  letter-spacing:.02em;
}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a{
  display:inline-block;
  color:var(--text-2);
  font-size:14.5px;
  transition:color .18s ease-out,transform .18s ease-out;
}
.footer-col ul a:hover{color:var(--text);transform:translateX(2px)}
.footer-form{display:flex;gap:10px}
.footer-form input{
  flex:1;
  min-width:0;
  height:44px;
  padding:0 14px;
  border-radius:var(--r-sm);
  background:var(--surface);
  border:1px solid var(--border-strong);
  color:var(--text);
  font-size:14.5px;
  font-family:inherit;
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.footer-form input::placeholder{color:var(--text-3)}
.footer-form input:focus{
  outline:none;
  border-color:var(--neon);
  box-shadow:0 0 0 3px rgba(38,224,200,.18);
}
.form-hint{font-size:13px;color:var(--text-3);margin:10px 0 0}

.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:12px;
  padding-top:24px;
  font-size:13px;
  color:var(--text-3);
}

/* ---------- responsive ---------- */
@media (max-width:1023px){
  .container{padding:0 20px}
  .section{padding:64px 0}
  .page-hero{padding:64px 0 56px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}

  .nav-toggle{display:flex}
  .main-nav{
    position:fixed;
    inset:0;
    top:0;
    padding:96px 24px 40px;
    background:rgba(14,11,22,.985);
    backdrop-filter:blur(10px);
    opacity:0;
    visibility:hidden;
    transform:translateY(-12px);
    transition:opacity .22s ease-out,transform .22s ease-out,visibility .22s ease-out;
    overflow-y:auto;
    z-index:70;
  }
  .main-nav.is-open{opacity:1;visibility:visible;transform:translateY(0)}
  .main-nav ul{flex-direction:column;align-items:stretch;gap:0}
  .main-nav a{
    display:block;
    font-size:18px;
    padding:18px 0;
    border-bottom:1px solid var(--border);
    color:var(--text-2);
  }
  .main-nav a::after{display:none}
  .main-nav a.active{color:var(--text)}
  .main-nav a.active::before{
    content:"";
    position:absolute;
    left:-24px;top:50%;
    transform:translateY(-50%);
    width:3px;height:22px;
    border-radius:2px;
    background:var(--brand-grad);
  }

  .stat-card{grid-template-columns:1fr;gap:22px;padding:26px 24px}
  .stat-item{border-right:0;padding:0;border-bottom:1px solid var(--border);padding-bottom:18px}
  .stat-item:last-child{border-bottom:0;padding-bottom:0}
}

@media (max-width:767px){
  .section{padding:56px 0}
  .header-inner{min-height:66px;gap:12px}
  .brand-name{font-size:16px}
  .header-actions .btn-ghost{display:none}
  .header-actions .btn-primary{min-height:40px;padding:0 14px;font-size:13.5px}
  .hero-sub{font-size:15.5px}
  .hero-actions{gap:12px;margin:26px 0 30px}
  .hero-actions .btn{width:100%}
  .badges-row{gap:10px}
  .badge-divider{display:none}
  .flow{padding-left:34px}
  .flow::before{left:9px}
  .step::before{left:-32px;top:24px}
  .step-card{padding:22px 20px}
  .step-title{font-size:18px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px 24px}
  .cta-band .cta-actions{width:100%}
  .cta-band .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-form{flex-direction:column}
  .footer-form .btn{width:100%}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

@media (max-width:520px){
  .container{padding:0 16px}
  .section-head{margin-bottom:32px}
  .section-title{padding-left:14px}
  .title-underline{margin-left:14px}
  .step-top{gap:10px}
  .stat-num{font-size:28px}
}