/* roulang page: index */
:root{
  --bg-deep:#060b16;
  --bg:#0a1424;
  --surface:#0f1e33;
  --surface-2:#122539;
  --glass:rgba(14,29,48,.66);
  --line:rgba(110,231,255,.18);
  --line-strong:rgba(110,231,255,.38);
  --primary:#35e0c0;
  --primary-deep:#1f9fd8;
  --accent:#ff9d4d;
  --text:#eaf4ff;
  --muted:#93a9c0;
  --radius-lg:18px;
  --radius-md:12px;
  --radius-pill:999px;
  --shadow:0 18px 50px rgba(0,0,0,.35);
  --shadow-soft:0 10px 26px rgba(0,0,0,.25);
  --sidebar:248px;
  --font-sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-num:"DIN Alternate","Bahnschrift","Consolas",monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html,body{margin:0;padding:0;}
body{
  background:var(--bg-deep);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4,p,ul,ol,li,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
a{color:inherit;text-decoration:none;transition:color .2s ease,opacity .2s ease;}
a:hover{color:var(--primary);}
img{max-width:100%;display:block;border:0;}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input,textarea,select{font-family:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px;}
::selection{background:rgba(53,224,192,.28);color:#fff;}

/* ============ 布局骨架 ============ */
.main{
  margin-left:var(--sidebar);
  min-height:100vh;
  background:
    radial-gradient(circle at 78% 6%, rgba(53,224,192,.10), transparent 46%),
    radial-gradient(circle at 12% 82%, rgba(31,159,216,.10), transparent 50%),
    var(--bg);
  position:relative;
}
.container{
  width:100%;
  max-width:1280px;
  margin:0 auto;
  padding:0 40px;
}
.section{padding:88px 0;position:relative;}
.section-tight{padding:64px 0;}
.section-head{margin-bottom:40px;max-width:780px;}
.section-head h2{
  font-size:clamp(24px,2.6vw,36px);
  line-height:1.24;
  letter-spacing:-.01em;
  font-weight:700;
  margin-bottom:14px;
}
.section-head p{color:var(--muted);font-size:16px;line-height:1.85;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.16em;color:var(--primary);
  text-transform:uppercase;margin-bottom:18px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--primary);display:block;border-radius:2px;}

/* ============ 侧栏导航 ============ */
.sidenav{
  position:fixed;top:0;left:0;width:var(--sidebar);height:100vh;
  background:linear-gradient(180deg,#08111f 0%,#070d18 100%);
  border-right:1px solid var(--line);
  padding:28px 18px 22px;
  display:flex;flex-direction:column;gap:26px;
  z-index:70;
  overflow:hidden;
}
.sidenav::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(147,169,192,.4) 1px,transparent 1px);
  background-size:26px 26px;opacity:.14;
}
.brand{
  display:flex;align-items:center;gap:12px;
  position:relative;z-index:2;
  padding:4px 6px;
}
.brand-mark{
  width:40px;height:40px;flex:0 0 40px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,var(--primary),var(--primary-deep));
  color:#04121a;font-size:17px;
  box-shadow:0 8px 22px rgba(53,224,192,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-text strong{font-size:17px;letter-spacing:.02em;color:#fff;font-weight:700;}
.brand-text small{font-size:11px;color:var(--muted);letter-spacing:.22em;}
.nav{display:flex;flex-direction:column;gap:6px;position:relative;z-index:2;}
.nav-item{
  display:flex;align-items:center;gap:12px;
  height:44px;padding:0 12px;border-radius:var(--radius-md);
  color:var(--muted);font-size:15px;position:relative;
  transition:background .22s ease,color .22s ease,transform .22s ease;
}
.nav-item i{width:18px;text-align:center;font-size:15px;}
.nav-item:hover{background:rgba(53,224,192,.08);color:var(--text);}
.nav-item.is-active{
  background:rgba(53,224,192,.13);
  color:#fff;
  font-weight:600;
}
.nav-item.is-active::before{
  content:"";position:absolute;left:0;top:9px;bottom:9px;width:3px;
  border-radius:0 3px 3px 0;
  background:var(--primary);
  box-shadow:0 0 14px rgba(53,224,192,.85);
}
.nav-cta{margin-top:auto;position:relative;z-index:2;display:flex;flex-direction:column;gap:10px;}
.nav-note{font-size:12px;color:var(--muted);line-height:1.7;padding:0 6px;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--radius-md);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,filter .2s ease;
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(120deg,var(--primary) 0%,var(--primary-deep) 100%);
  color:#04121a;
  box-shadow:0 10px 28px rgba(53,224,192,.26);
}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 16px 34px rgba(53,224,192,.36);color:#04121a;}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{
  border:1px solid var(--line-strong);
  color:var(--text);
  background:rgba(53,224,192,.04);
}
.btn-ghost:hover{background:rgba(53,224,192,.12);border-color:var(--primary);color:#fff;transform:translateY(-1px);}
.btn-block{width:100%;}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}

/* ============ Hero ============ */
.hero{
  position:relative;
  min-height:clamp(520px,68vh,640px);
  display:flex;align-items:center;
  padding:76px 0 64px;
  overflow:hidden;
  background-image:linear-gradient(105deg,rgba(6,11,22,.96) 12%,rgba(6,11,22,.72) 55%,rgba(6,11,22,.55) 100%),url("/assets/images/backpic/back-1.png");
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(234,244,255,.55) 1px,transparent 1px);
  background-size:34px 34px;opacity:.10;
}
.hero::after{
  content:"";position:absolute;right:-140px;bottom:-180px;width:520px;height:520px;
  border-radius:50%;border:1px solid rgba(53,224,192,.22);
  box-shadow:0 0 0 60px rgba(53,224,192,.05),0 0 0 130px rgba(53,224,192,.03);
  pointer-events:none;
}
.hero-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;width:100%;
}
.hero-copy h1{
  font-size:clamp(30px,4vw,54px);
  line-height:1.15;letter-spacing:-.01em;font-weight:700;color:#fff;
  margin-bottom:20px;
}
.hero-copy h1 em{font-style:normal;color:var(--primary);}
.hero-sub{
  color:#c3d6e8;font-size:17px;line-height:1.8;max-width:560px;margin-bottom:30px;
}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:36px;}
.hero-meta{display:flex;gap:34px;flex-wrap:wrap;}
.hero-meta li{font-size:13px;color:var(--muted);display:flex;flex-direction:column;gap:2px;}
.hero-meta strong{font-family:var(--font-num);font-size:24px;color:#fff;line-height:1.2;}

.hero-card{
  background:var(--glass);
  border:1px solid var(--line-strong);
  border-radius:var(--radius-lg);
  padding:26px;
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.07);
}
.glass-head{
  display:flex;align-items:center;gap:10px;
  font-size:13px;color:var(--muted);letter-spacing:.06em;margin-bottom:20px;
}
.pulse-dot{
  width:8px;height:8px;border-radius:50%;background:var(--primary);
  box-shadow:0 0 0 4px rgba(53,224,192,.16);
  animation:pulse 2.2s ease-in-out infinite;
}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1);}50%{opacity:.5;transform:scale(.82);}}
.hero-card-pct{margin-left:auto;font-family:var(--font-num);font-size:22px;color:var(--primary);}
.task-list{display:flex;flex-direction:column;gap:14px;margin-bottom:22px;}
.task-list li{display:flex;gap:12px;align-items:flex-start;}
.task-list .dot{
  width:12px;height:12px;border-radius:50%;flex:0 0 12px;margin-top:7px;
  background:#2a3b52;border:1px solid rgba(147,169,192,.4);
}
.task-list li.is-done .dot{background:var(--primary);border-color:var(--primary);box-shadow:0 0 10px rgba(53,224,192,.7);}
.task-list li.is-active .dot{background:var(--accent);border-color:var(--accent);box-shadow:0 0 10px rgba(255,157,77,.7);}
.task-list strong{display:block;font-size:15px;color:#fff;font-weight:600;line-height:1.5;}
.task-list small{font-size:12.5px;color:var(--muted);}
.hero-card-note{font-size:12.5px;color:var(--muted);line-height:1.7;margin-top:14px;}

/* 进度条 */
.progress{
  height:6px;border-radius:6px;background:#14273d;overflow:hidden;position:relative;
}
.progress span{
  display:block;height:100%;border-radius:6px;
  background:linear-gradient(90deg,var(--primary),var(--primary-deep));
  box-shadow:0 0 12px rgba(53,224,192,.7);
}

/* ============ 流程 ============ */
.flow-track{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative;
}
.flow-track::before{
  content:"";position:absolute;left:6%;right:6%;top:46px;height:1px;
  background:linear-gradient(90deg,transparent,var(--line-strong),var(--line-strong),transparent);
}
.flow-card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-lg);padding:26px 24px;
  position:relative;transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.flow-card:nth-child(even){transform:translateY(32px);}
.flow-card:hover{transform:translateY(-2px);border-color:var(--line-strong);box-shadow:var(--shadow-soft);}
.flow-card:nth-child(even):hover{transform:translateY(30px);}
.flow-num{
  font-family:var(--font-num);font-size:13px;letter-spacing:.16em;color:var(--primary);
  margin-bottom:16px;display:block;
}
.flow-icon{
  width:42px;height:42px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:rgba(53,224,192,.12);color:var(--primary);font-size:17px;margin-bottom:16px;
  border:1px solid var(--line);
}
.flow-card h3{font-size:19px;font-weight:700;color:#fff;margin-bottom:10px;}
.flow-card p{font-size:14.5px;color:var(--muted);line-height:1.8;}

/* ============ 奖励预览 ============ */
.reward-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px;align-items:stretch;}
.reward-main{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid var(--line);
  background:var(--surface);
  display:flex;flex-direction:column;justify-content:flex-end;
  min-height:340px;
  transition:border-color .25s ease,box-shadow .25s ease;
}
.reward-main:hover{border-color:var(--line-strong);box-shadow:var(--shadow-soft);}
.reward-main img{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
  filter:brightness(.55) saturate(1.05);
}
.reward-main-body{
  position:relative;z-index:2;padding:32px;
  background:linear-gradient(180deg,transparent,rgba(6,11,22,.92) 62%);
}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 12px;border-radius:var(--radius-pill);
  font-size:12.5px;letter-spacing:.02em;font-weight:500;
}
.badge-cat{background:rgba(53,224,192,.14);color:var(--primary);border:1px solid rgba(53,224,192,.32);}
.badge-status{background:rgba(255,157,77,.14);color:var(--accent);border:1px solid rgba(255,157,77,.34);}
.badge-done{background:rgba(53,224,192,.14);color:var(--primary);border:1px solid rgba(53,224,192,.32);}
.badge-idle{background:rgba(147,169,192,.12);color:var(--muted);border:1px solid rgba(147,169,192,.28);}
.reward-main h3{font-size:24px;font-weight:700;color:#fff;margin:14px 0 10px;}
.reward-main p{color:#c3d6e8;font-size:15px;line-height:1.85;max-width:520px;}
.reward-side{display:flex;flex-direction:column;gap:24px;}
.reward-card{
  flex:1;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-lg);padding:26px;
  display:flex;flex-direction:column;gap:14px;
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.reward-card:hover{transform:translateY(-2px);border-color:var(--line-strong);box-shadow:var(--shadow-soft);}
.reward-card-head{display:flex;align-items:baseline;justify-content:space-between;gap:12px;}
.reward-card h3{font-size:17px;font-weight:700;color:#fff;}
.reward-card .num{font-family:var(--font-num);font-size:22px;color:var(--primary);}
.reward-card p{font-size:14px;color:var(--muted);line-height:1.75;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;}
.tag{
  font-size:12.5px;color:#c3d6e8;border:1px solid var(--line);
  padding:4px 11px;border-radius:var(--radius-pill);background:rgba(53,224,192,.05);
}

/* ============ 仪表 ============ */
.dash{
  background:var(--glass);
  border:1px solid var(--line-strong);
  border-radius:var(--radius-lg);
  padding:36px;
  position:relative;overflow:hidden;
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.06);
}
.dash::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(110,231,255,.06) 1px,transparent 1px),
    linear-gradient(90deg,rgba(110,231,255,.06) 1px,transparent 1px);
  background-size:56px 56px;
  opacity:.9;
}
.dash::after{
  content:"";position:absolute;left:0;right:0;top:50%;height:1px;
  background:linear-gradient(90deg,transparent,rgba(53,224,192,.5),transparent);
  opacity:.5;
}
.dash-inner{position:relative;z-index:2;}
.kpi-row{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-bottom:34px;}
.kpi{
  background:rgba(10,20,36,.6);border:1px solid var(--line);
  border-radius:var(--radius-md);padding:20px 22px;
}
.kpi-label{font-size:13px;color:var(--muted);margin-bottom:6px;}
.kpi-value{font-family:var(--font-num);font-size:42px;line-height:1.1;color:#fff;}
.kpi-value small{font-size:15px;color:var(--muted);font-family:var(--font-sans);margin-left:6px;}
.milestone{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:12px;font-size:13.5px;color:var(--muted);}
.milestone strong{color:var(--primary);font-family:var(--font-num);font-size:18px;}
.dash .progress{height:6px;margin-bottom:24px;}
.node-row{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.node{display:flex;gap:10px;align-items:flex-start;font-size:13.5px;color:var(--muted);}
.node .dot{width:12px;height:12px;border-radius:50%;flex:0 0 12px;margin-top:6px;}
.node.done .dot{background:var(--primary);box-shadow:0 0 10px rgba(53,224,192,.75);}
.node.now .dot{background:var(--accent);box-shadow:0 0 10px rgba(255,157,77,.75);}
.node.idle .dot{background:#2a3b52;border:1px solid rgba(147,169,192,.45);}
.node strong{display:block;color:#fff;font-size:14px;font-weight:600;margin-bottom:2px;}

/* ============ 分类入口 ============ */
.cat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.cat-card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-lg);overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.cat-card:hover{transform:translateY(-2px);border-color:var(--primary);box-shadow:var(--shadow);}
.cat-media{position:relative;aspect-ratio:16/10;overflow:hidden;}
.cat-media img{width:100%;height:100%;object-fit:cover;filter:brightness(.72);transition:transform .5s ease;}
.cat-card:hover .cat-media img{transform:scale(1.04);}
.cat-media .badge{position:absolute;left:16px;top:16px;}
.cat-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1;}
.cat-body h3{font-size:20px;font-weight:700;color:#fff;}
.cat-body p{font-size:14.5px;color:var(--muted);line-height:1.8;}
.cat-link{
  margin-top:auto;display:inline-flex;align-items:center;gap:8px;
  font-size:14px;color:var(--primary);font-weight:600;
}
.cat-link i{transition:transform .22s ease;}
.cat-card:hover .cat-link i{transform:translateX(4px);}

/* ============ 资讯 ============ */
.news-grid{display:grid;grid-template-columns:8fr 4fr;gap:32px;align-items:start;}
.news-list{display:flex;flex-direction:column;gap:16px;}
.news-item{
  display:grid;grid-template-columns:160px 1fr;gap:20px;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-md);padding:20px;
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.news-item:hover{transform:translateY(-2px);border-color:var(--line-strong);box-shadow:var(--shadow-soft);color:inherit;}
.news-thumb{
  width:160px;height:100px;border-radius:10px;overflow:hidden;background:#0b1626;
  border:1px solid var(--line);
}
.news-thumb img{width:100%;height:100%;object-fit:cover;filter:brightness(.82);}
.news-body{min-width:0;display:flex;flex-direction:column;gap:8px;}
.news-body h3{
  font-size:17px;font-weight:600;color:#fff;line-height:1.55;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-item:hover h3{color:var(--primary);}
.news-body p{
  font-size:14px;color:var(--muted);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{display:flex;align-items:center;gap:12px;margin-top:auto;font-size:12.5px;color:var(--muted);}
.news-empty{
  min-height:180px;border:1px dashed var(--line-strong);border-radius:var(--radius-md);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;
  color:var(--muted);font-size:14.5px;background:rgba(15,30,51,.5);text-align:center;padding:24px;
}
.news-empty i{font-size:22px;color:var(--primary);opacity:.8;}
.news-side{position:sticky;top:28px;display:flex;flex-direction:column;gap:20px;}
.side-card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-lg);padding:26px;
}
.side-card h3{font-size:16px;font-weight:700;color:#fff;margin-bottom:16px;}
.side-links{display:flex;flex-direction:column;gap:4px;}
.side-links a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:10px 12px;border-radius:10px;font-size:14.5px;color:var(--muted);
  transition:background .2s ease,color .2s ease,padding-left .2s ease;
}
.side-links a:hover{background:rgba(53,224,192,.09);color:#fff;padding-left:16px;}
.side-links i{font-size:11px;color:var(--primary);}
.side-note{font-size:13.5px;color:var(--muted);line-height:1.8;margin-top:6px;}

/* ============ FAQ ============ */
.faq-wrap{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-lg);overflow:hidden;
  max-width:920px;
}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:last-child{border-bottom:0;}
.faq-item summary{
  list-style:none;cursor:pointer;position:relative;
  padding:20px 56px 20px 22px;min-height:56px;
  display:flex;align-items:center;
  font-size:16px;font-weight:600;color:#fff;
  transition:background .2s ease,padding-left .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{background:rgba(53,224,192,.06);}
.faq-item summary::after{
  content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);
  width:26px;height:26px;border-radius:50%;border:1px solid var(--line-strong);
  display:flex;align-items:center;justify-content:center;
  color:var(--primary);font-size:15px;line-height:1;transition:transform .25s ease,background .25s ease;
}
.faq-item[open] summary::after{content:"−";background:rgba(53,224,192,.16);}
.faq-item[open] summary{border-left:3px solid var(--primary);padding-left:19px;background:rgba(53,224,192,.05);}
.faq-body{padding:0 22px 22px 22px;font-size:14.5px;color:var(--muted);line-height:1.85;}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;
  border-radius:var(--radius-lg);
  border:1px solid var(--line-strong);
  background-image:linear-gradient(100deg,rgba(6,11,22,.94),rgba(10,20,36,.82)),url("/assets/images/backpic/back-3.webp");
  background-size:cover;background-position:center;
  padding:48px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:var(--shadow);
}
.cta-band h2{font-size:clamp(22px,2.4vw,32px);font-weight:700;color:#fff;line-height:1.3;margin-bottom:10px;}
.cta-band p{font-size:15px;color:#c3d6e8;line-height:1.8;max-width:560px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;flex-shrink:0;}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:40px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,#070e1a,#050a13);
  position:relative;
  padding:64px 0 28px;
}
.site-footer::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(147,169,192,.5) 1px,transparent 1px);
  background-size:30px 30px;opacity:.13;
}
.footer-grid{
  position:relative;z-index:2;
  display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:40px;
  padding-bottom:40px;
}
.footer-brand .brand{margin-bottom:16px;padding:0;}
.footer-brand p{font-size:14px;color:var(--muted);line-height:1.85;max-width:320px;}
.footer-col h4{font-size:14px;color:#fff;font-weight:700;margin-bottom:16px;letter-spacing:.04em;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a,.footer-col li{font-size:14px;color:var(--muted);line-height:1.7;}
.footer-col a:hover{color:var(--primary);}
.footer-bottom{
  position:relative;z-index:2;
  border-top:1px solid var(--line);
  padding-top:22px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--muted);
}

/* ============ 移动端导航 ============ */
.topbar{
  display:none;
  position:fixed;top:0;left:0;right:0;height:64px;z-index:90;
  align-items:center;justify-content:space-between;
  padding:0 18px;
  background:rgba(8,17,31,.94);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
}
.topbar .brand{padding:0;gap:10px;}
.topbar .brand-mark{width:34px;height:34px;flex:0 0 34px;font-size:14px;border-radius:10px;}
.topbar .brand-text strong{font-size:16px;}
.topbar .brand-text small{font-size:10px;}
.menu-btn{
  width:42px;height:42px;border-radius:12px;border:1px solid var(--line-strong);
  display:flex;align-items:center;justify-content:center;color:var(--text);font-size:16px;
  background:rgba(53,224,192,.06);
}
.menu-btn:active{transform:scale(.96);}
.drawer-mask{
  position:fixed;inset:0;background:rgba(3,7,14,.66);z-index:95;
  opacity:0;visibility:hidden;transition:opacity .28s ease,visibility .28s ease;
  backdrop-filter:blur(2px);
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;left:0;width:284px;height:100%;z-index:100;
  background:linear-gradient(180deg,#08111f,#070d18);
  border-right:1px solid var(--line-strong);
  padding:26px 18px 22px;
  display:flex;flex-direction:column;gap:24px;
  transform:translateX(-102%);
  transition:transform .3s cubic-bezier(.4,0,.2,1);
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;}
.drawer-close{
  width:36px;height:36px;border-radius:10px;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;color:var(--muted);
}
.drawer .nav-cta{margin-top:8px;}

/* ============ 响应式 ============ */
@media (max-width:1199px) and (min-width:769px){
  :root{--sidebar:84px;}
  .sidenav{padding:24px 12px 20px;align-items:center;}
  .sidenav .brand-text{display:none;}
  .sidenav .brand{justify-content:center;padding:0;}
  .nav{width:100%;align-items:center;}
  .nav-item{justify-content:center;padding:0;width:48px;}
  .nav-item .nav-label{display:none;}
  .nav-item.is-active::before{top:12px;bottom:12px;}
  .nav-cta{width:100%;}
  .nav-cta .btn{height:44px;padding:0;font-size:0;}
  .nav-cta .btn i{font-size:16px;}
  .nav-note{display:none;}
  .container{padding:0 32px;}
  .hero-inner{grid-template-columns:1fr;gap:36px;}
  .hero-card{max-width:520px;}
  .news-grid{grid-template-columns:1fr;}
  .news-side{position:static;}
  .cta-band{flex-direction:column;align-items:flex-start;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}

@media (max-width:768px){
  .sidenav{display:none;}
  .topbar{display:flex;}
  .main{margin-left:0;padding-top:64px;}
  .container{padding:0 20px;}
  .section{padding:52px 0;}
  .hero{padding:56px 0 48px;min-height:480px;}
  .hero-inner{grid-template-columns:1fr;gap:32px;}
  .hero-copy h1{font-size:32px;line-height:1.2;}
  .hero-sub{font-size:15.5px;margin-bottom:24px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .hero-meta{gap:24px;}
  .hero-card{padding:22px;}
  .flow-track{grid-template-columns:1fr;gap:16px;}
  .flow-track::before{display:none;}
  .flow-card:nth-child(even){transform:none;}
  .flow-card:nth-child(even):hover{transform:translateY(-2px);}
  .reward-grid{grid-template-columns:1fr;}
  .reward-main{min-height:300px;}
  .reward-main-body{padding:24px;}
  .kpi-row{grid-template-columns:1fr;gap:14px;}
  .kpi-value{font-size:34px;}
  .dash{padding:24px;}
  .node-row{grid-template-columns:1fr;gap:14px;}
  .cat-grid{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:1fr;gap:24px;}
  .news-item{grid-template-columns:1fr;gap:14px;}
  .news-thumb{width:100%;height:160px;}
  .news-side{position:static;}
  .cta-band{padding:28px;flex-direction:column;align-items:flex-start;}
  .cta-actions{width:100%;flex-direction:column;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .faq-item summary{font-size:15px;padding:18px 52px 18px 18px;}
  .faq-item[open] summary{padding-left:15px;}
}

@media (max-width:520px){
  .hero-copy h1{font-size:30px;}
  .section-head h2{font-size:24px;}
  .kpi-value{font-size:30px;}
  .reward-main h3{font-size:21px;}
  .news-body h3{font-size:16px;}
}

/* roulang page: article */
:root{
  --bg-deep:#060b16;
  --bg:#0a1424;
  --surface:#0f1e33;
  --surface-2:#122540;
  --surface-glass:rgba(14,29,48,.66);
  --line:rgba(110,231,255,.18);
  --line-soft:rgba(110,231,255,.10);
  --primary:#35e0c0;
  --accent:#ff9d4d;
  --text:#eaf4ff;
  --muted:#93a9c0;
  --radius-lg:18px;
  --radius:12px;
  --shadow:0 18px 50px rgba(0,0,0,.35);
  --sidebar-w:248px;
  --ease:cubic-bezier(.4,.2,.2,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.8;
  font-weight:400;
  color:var(--text);
  background-color:var(--bg-deep);
  background-image:
    radial-gradient(circle at 14% 8%, rgba(53,224,192,.10), transparent 44%),
    radial-gradient(circle at 86% 12%, rgba(93,157,255,.09), transparent 42%),
    radial-gradient(circle at 62% 88%, rgba(255,157,77,.05), transparent 46%);
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;border:0}
a{color:var(--primary);text-decoration:none;transition:color .22s var(--ease),opacity .22s var(--ease)}
a:hover{color:#ffffff}
h1,h2,h3,h4,h5{margin:0;font-weight:700;line-height:1.25;letter-spacing:-.01em;color:#ffffff}
p{margin:0}
ul,ol{margin:0;padding:0}
li{list-style:none}
button{font-family:inherit;font-size:inherit}
input,textarea,select{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}
::selection{background:rgba(53,224,192,.3);color:#ffffff}

/* ---------- 基础骨架 ---------- */
.app-shell{display:block;min-height:100vh;position:relative}
.app-body{margin-left:var(--sidebar-w);min-height:100vh;display:flex;flex-direction:column;transition:margin-left .28s var(--ease)}
.main{flex:1 0 auto;padding:36px 0 96px}
.container{width:100%;max-width:1280px;margin:0 auto;padding:0 40px}

/* ---------- 左侧 App Shell 导航 ---------- */
.sidebar{
  position:fixed;left:0;top:0;bottom:0;width:var(--sidebar-w);z-index:60;
  display:flex;flex-direction:column;gap:24px;
  padding:28px 18px 22px;
  background:linear-gradient(180deg,rgba(12,25,42,.99),rgba(7,15,27,.99));
  border-right:1px solid var(--line);
  box-shadow:0 0 60px rgba(0,0,0,.45);
}
.sidebar::after{
  content:"";position:absolute;right:-1px;top:0;bottom:0;width:1px;
  background:linear-gradient(180deg,transparent,rgba(53,224,192,.55),transparent);
  opacity:.7;pointer-events:none;
}
.brand{display:flex;align-items:center;gap:12px;padding:0 6px;flex:0 0 auto}
.brand-mark{
  width:40px;height:40px;flex:0 0 40px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--primary),#2f9fe8);
  color:#04121d;font-size:16px;
  box-shadow:0 8px 24px rgba(53,224,192,.30);
}
.brand-text{display:flex;flex-direction:column;gap:2px;min-width:0}
.brand-text strong{font-size:17px;line-height:1.2;color:#ffffff;letter-spacing:.02em;white-space:nowrap}
.brand-text small{font-size:10.5px;letter-spacing:.18em;color:var(--muted);white-space:nowrap}
.nav{display:flex;flex-direction:column;gap:6px}
.nav-item{
  position:relative;display:flex;align-items:center;gap:12px;
  height:44px;padding:0 14px;border-radius:12px;
  font-size:14.5px;color:var(--muted);
  transition:background .22s var(--ease),color .22s var(--ease);
}
.nav-item i{width:18px;flex:0 0 18px;text-align:center;font-size:14px}
.nav-label{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.nav-item:hover{background:rgba(53,224,192,.08);color:#ffffff}
.nav-item.is-active{background:rgba(53,224,192,.12);color:#ffffff}
.nav-item.is-active::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:20px;border-radius:0 3px 3px 0;
  background:var(--primary);box-shadow:0 0 12px var(--primary);
}
.sidebar-foot{margin-top:auto;padding-top:14px;border-top:1px solid var(--line-soft)}
.sidebar-note{font-size:12px;line-height:1.7;color:var(--muted);margin-bottom:12px}

/* ---------- 移动端顶栏与抽屉 ---------- */
.mobilebar{
  display:none;position:sticky;top:0;z-index:70;height:64px;
  align-items:center;justify-content:space-between;gap:12px;
  padding:0 16px;
  background:rgba(8,17,30,.96);border-bottom:1px solid var(--line);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.mobilebar .brand{padding:0}
.drawer-btn{
  width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
  background:rgba(53,224,192,.08);border:1px solid var(--line);color:var(--text);
  cursor:pointer;transition:background .22s var(--ease),border-color .22s var(--ease);
}
.drawer-btn:hover{background:rgba(53,224,192,.16);border-color:rgba(53,224,192,.5)}
.drawer-mask{
  position:fixed;inset:0;z-index:80;background:rgba(3,7,14,.72);
  opacity:0;visibility:hidden;transition:opacity .26s var(--ease),visibility .26s var(--ease);
  backdrop-filter:blur(2px);
}
.drawer-mask.is-open{opacity:1;visibility:visible}

/* ---------- 通用组件 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--radius);
  font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;
  cursor:pointer;white-space:nowrap;
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease),transform .18s var(--ease),filter .22s var(--ease);
}
.btn-primary{
  background:linear-gradient(120deg,#35e0c0,#2f9fe8);
  color:#04121d;box-shadow:0 10px 28px rgba(53,224,192,.26);
}
.btn-primary:hover{color:#04121d;filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 16px 36px rgba(53,224,192,.38)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 6px 18px rgba(53,224,192,.3)}
.btn-ghost{
  background:rgba(53,224,192,.06);border-color:rgba(53,224,192,.42);color:#bdf3ea;
}
.btn-ghost:hover{background:rgba(53,224,192,.14);border-color:var(--primary);color:#ffffff}
.btn-ghost:active{transform:translateY(1px)}
.btn-block{display:flex;width:100%}
.tag{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;
  border-radius:999px;font-size:12.5px;letter-spacing:.04em;
  background:rgba(53,224,192,.14);color:var(--primary);
  border:1px solid rgba(53,224,192,.32);
}
.tag-accent{background:rgba(255,157,77,.14);color:var(--accent);border-color:rgba(255,157,77,.34)}
.tag-muted{background:rgba(147,169,192,.12);color:var(--muted);border-color:rgba(147,169,192,.26)}
.progress{
  position:relative;height:6px;border-radius:999px;overflow:hidden;
  background:rgba(110,231,255,.12);margin:14px 0 10px;
}
.progress span{
  display:block;height:100%;border-radius:999px;
  background:linear-gradient(90deg,#35e0c0,#4fc3ff);
  box-shadow:0 0 12px rgba(53,224,192,.7);
}
.progress-meta{display:flex;align-items:center;justify-content:space-between;font-size:12.5px;color:var(--muted)}
.progress-meta strong{font-family:"DIN Alternate","Bahnschrift","Consolas",monospace;font-size:16px;color:var(--primary)}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--muted);margin-bottom:22px;
}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--primary);text-decoration:underline;text-underline-offset:3px}
.breadcrumb .sep{opacity:.45}
.breadcrumb .current{
  color:#cfe3f5;max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}

/* ---------- 文章详情头 ---------- */
.article-head{
  position:relative;overflow:hidden;
  padding:38px 40px 34px;border-radius:20px;
  border:1px solid var(--line);box-shadow:var(--shadow);
  background:linear-gradient(160deg,rgba(15,30,51,.94),rgba(8,17,30,.94));
  margin-bottom:34px;
}
.article-head::before{
  content:"";position:absolute;inset:0;
  background:url(/assets/images/backpic/back-2.png) center/cover no-repeat;
  opacity:.20;pointer-events:none;
}
.article-head::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    linear-gradient(120deg,rgba(6,11,22,.94),rgba(6,11,22,.55)),
    radial-gradient(circle at 78% 22%,rgba(53,224,192,.16),transparent 52%);
}
.article-head > *{position:relative;z-index:1}
.article-title{
  font-size:clamp(28px,3.2vw,42px);
  line-height:1.22;margin:16px 0 18px;max-width:940px;
  letter-spacing:-.015em;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:16px;
  font-size:13.5px;color:var(--muted);
}
.article-meta i{color:var(--primary);font-size:12px;margin-right:6px;opacity:.85}
.meta-dot{width:4px;height:4px;border-radius:50%;background:rgba(147,169,192,.55)}

/* ---------- 封面 ---------- */
.article-cover{
  position:relative;overflow:hidden;height:330px;
  border-radius:18px;border:1px solid var(--line);
  box-shadow:var(--shadow);margin-bottom:40px;
  background:#0b1728;
}
.article-cover img{width:100%;height:100%;object-fit:cover}
.article-cover::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,11,22,.10),rgba(6,11,22,.78));
}
.article-cover figcaption{
  position:absolute;left:22px;bottom:18px;z-index:2;
  font-size:12.5px;color:rgba(234,244,255,.82);letter-spacing:.02em;
}

/* ---------- 两栏布局 ---------- */
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 300px;
  gap:40px;align-items:start;
}
.article-side{position:sticky;top:28px;min-width:0}

/* ---------- 正文 ---------- */
.article-body{
  min-width:0;
  padding:36px 40px 34px;
  border-radius:18px;border:1px solid var(--line);
  background:linear-gradient(180deg,rgba(15,30,51,.74),rgba(9,19,33,.74));
  box-shadow:var(--shadow);
  font-size:16.5px;line-height:1.85;color:#dbe9f7;
}
.article-body p{margin:0 0 18px}
.article-body h2{
  position:relative;font-size:27px;line-height:1.32;
  margin:36px 0 14px;padding-left:14px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:3px;border-radius:3px;
  background:var(--primary);box-shadow:0 0 12px rgba(53,224,192,.75);
}
.article-body h3{font-size:21px;line-height:1.4;margin:26px 0 12px;color:#ffffff}
.article-body h4{font-size:17px;margin:20px 0 10px;color:#cfe6fa}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:0}
.article-body ul li{position:relative;padding-left:20px;margin-bottom:10px}
.article-body ul li::before{
  content:"";position:absolute;left:4px;top:.72em;width:6px;height:6px;border-radius:50%;
  background:var(--primary);box-shadow:0 0 8px rgba(53,224,192,.8);
}
.article-body ol{counter-reset:olc}
.article-body ol li{position:relative;padding-left:30px;margin-bottom:10px;counter-increment:olc}
.article-body ol li::before{
  content:counter(olc);position:absolute;left:0;top:.16em;
  width:21px;height:21px;border-radius:7px;
  display:grid;place-items:center;font-size:12px;font-weight:700;
  background:rgba(53,224,192,.16);color:var(--primary);
  border:1px solid rgba(53,224,192,.28);
}
.article-body blockquote{
  margin:24px 0;padding:16px 22px;
  border-left:3px solid var(--primary);
  background:rgba(53,224,192,.07);
  border-radius:0 12px 12px 0;color:#c7dced;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body a{color:var(--primary);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:#ffffff}
.article-body img{border-radius:14px;border:1px solid var(--line);margin:24px 0}
.article-body strong{color:#ffffff}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0}
.article-body table{width:100%;border-collapse:collapse;margin:22px 0;font-size:15px}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left}
.article-body th{background:rgba(53,224,192,.09);color:#ffffff;font-weight:600}
.article-body code{
  padding:2px 6px;border-radius:6px;font-size:14px;
  background:rgba(110,231,255,.12);color:#a8f0e4;
}

/* ---------- 侧栏卡片 ---------- */
.side-card{
  padding:22px;border-radius:16px;margin-bottom:20px;
  background:var(--surface-glass);border:1px solid var(--line);
  box-shadow:var(--shadow);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
}
.side-card h3{
  display:flex;align-items:center;gap:8px;
  font-size:14.5px;letter-spacing:.04em;color:#ffffff;margin-bottom:14px;
}
.side-card h3 i{font-size:12.5px;color:var(--primary)}
.side-note{font-size:13px;line-height:1.8;color:var(--muted);margin-bottom:14px}
.side-link{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:10px 12px;border-radius:10px;
  font-size:14px;color:#c3d6e8;
  transition:background .22s var(--ease),color .22s var(--ease),transform .22s var(--ease);
}
.side-link i{font-size:11px;color:var(--muted);transition:transform .22s var(--ease),color .22s var(--ease)}
.side-link:hover{background:rgba(53,224,192,.10);color:#ffffff;transform:translateX(2px)}
.side-link:hover i{color:var(--primary);transform:translateX(2px)}
.side-card .btn{margin-top:6px}

/* ---------- 相关推荐 ---------- */
.related{margin-top:40px}
.related-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:18px}
.related-head h2{font-size:24px}
.related-head a{font-size:13.5px;color:var(--muted)}
.related-head a:hover{color:var(--primary)}
.related-list{display:flex;flex-direction:column;gap:16px}
.news-card{
  display:grid;grid-template-columns:160px minmax(0,1fr);gap:18px;
  padding:16px;border-radius:14px;
  background:linear-gradient(160deg,rgba(18,37,64,.9),rgba(11,23,39,.9));
  border:1px solid var(--line);
  transition:transform .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.news-card:hover{
  transform:translateY(-2px);
  border-color:rgba(53,224,192,.55);
  box-shadow:0 18px 40px rgba(0,0,0,.45);
}
.news-card .thumb{
  position:relative;overflow:hidden;border-radius:10px;height:100px;background:#0b1728;
}
.news-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.news-card:hover .thumb img{transform:scale(1.05)}
.news-card .thumb::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,11,22,.05),rgba(6,11,22,.5));
}
.news-card h3{
  font-size:16px;line-height:1.45;margin-bottom:6px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card h3 a{color:#ffffff}
.news-card h3 a:hover{color:var(--primary)}
.news-card p{
  font-size:13.5px;line-height:1.7;color:var(--muted);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:10px;font-size:12.5px;color:var(--muted)}
.news-meta .arrow{margin-left:auto;color:var(--primary);font-size:12px;transition:transform .22s var(--ease)}
.news-card:hover .news-meta .arrow{transform:translateX(4px)}
.back-links{
  display:flex;flex-wrap:wrap;gap:22px;align-items:center;
  margin-top:28px;padding-top:20px;border-top:1px solid var(--line-soft);
  font-size:14px;
}
.back-links a{display:inline-flex;align-items:center;gap:8px;color:var(--muted)}
.back-links a:hover{color:var(--primary)}

/* ---------- 空态 ---------- */
.empty-state{
  padding:56px 24px;text-align:center;border-radius:16px;
  border:1px dashed rgba(110,231,255,.32);
  background:rgba(15,30,51,.5);
}
.empty-state .empty-icon{font-size:26px;color:var(--primary);opacity:.82;display:block;margin-bottom:14px}
.empty-state h2{font-size:22px;margin-bottom:10px}
.empty-state p{max-width:460px;margin:0 auto 22px;font-size:15px;color:var(--muted);line-height:1.85}

/* ---------- CTA ---------- */
.cta-bar{
  position:relative;overflow:hidden;
  display:flex;align-items:center;justify-content:space-between;gap:30px;
  margin-top:64px;padding:44px;
  border-radius:20px;border:1px solid var(--line);
  background:linear-gradient(120deg,rgba(15,30,51,.96),rgba(7,15,27,.96));
  box-shadow:var(--shadow);
}
.cta-bar::before{
  content:"";position:absolute;inset:0;
  background:url(/assets/images/backpic/back-1.png) center/cover no-repeat;
  opacity:.16;pointer-events:none;
}
.cta-bar::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(circle at 82% 18%,rgba(53,224,192,.20),transparent 55%);
}
.cta-bar > *{position:relative;z-index:1}
.cta-bar h2{font-size:28px;margin-bottom:8px}
.cta-bar p{font-size:15px;color:var(--muted)}

/* ---------- 页脚 ---------- */
.site-footer{
  flex:0 0 auto;position:relative;
  padding:56px 0 26px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(8,17,30,.6),rgba(5,9,17,1));
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:0;height:120px;pointer-events:none;
  background-image:radial-gradient(rgba(110,231,255,.5) 1px,transparent 1px);
  background-size:26px 26px;opacity:.10;
}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:36px;margin-bottom:36px;
}
.footer-brand p{margin-top:14px;font-size:13.5px;line-height:1.85;color:var(--muted);max-width:330px}
.footer-col h4{font-size:14px;letter-spacing:.04em;color:#ffffff;margin-bottom:14px}
.footer-col li{font-size:13.5px;line-height:1.9;color:var(--muted)}
.footer-col a{color:var(--muted)}
.footer-col a:hover{color:var(--primary)}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;
  padding-top:20px;border-top:1px solid rgba(110,231,255,.12);
  font-size:12.5px;color:rgba(147,169,192,.85);
}

/* ---------- 平板：侧栏收窄为图标栏 ---------- */
@media (min-width:769px) and (max-width:1199px){
  :root{--sidebar-w:84px}
  .sidebar{padding:24px 12px 20px;align-items:center}
  .sidebar .brand{padding:0;justify-content:center}
  .brand-text{display:none}
  .nav{width:100%;align-items:center}
  .nav-item{justify-content:center;padding:0;width:44px;height:44px}
  .nav-label{display:none}
  .sidebar-foot{width:100%}
  .sidebar-note{display:none}
  .sidebar-foot .btn{padding:0;font-size:0;gap:0}
  .sidebar-foot .btn i{font-size:16px}
  .sidebar-foot .btn span{display:none}
  .container{padding:0 28px}
  .article-layout{grid-template-columns:minmax(0,1fr) 270px;gap:28px}
}

/* ---------- 移动端 ---------- */
@media (max-width:768px){
  .mobilebar{display:flex}
  .app-body{margin-left:0}
  .sidebar{
    width:286px;padding:26px 18px 22px;z-index:90;
    transform:translateX(-100%);
    transition:transform .28s var(--ease);
    align-items:stretch;
  }
  .sidebar.is-open{transform:translateX(0)}
  .brand-text{display:flex}
  .sidebar .brand{padding:0 6px;justify-content:flex-start}
  .nav{width:auto;align-items:stretch}
  .nav-item{justify-content:flex-start;padding:0 14px;width:auto;height:46px}
  .nav-label{display:inline}
  .sidebar-foot .btn{padding:0 20px;font-size:15px;gap:8px}
  .sidebar-foot .btn span{display:inline}
  .sidebar-note{display:block}
  .main{padding:22px 0 64px}
  .container{padding:0 18px}
  .article-head{padding:26px 20px;border-radius:16px;margin-bottom:24px}
  .article-title{font-size:clamp(24px,6vw,30px);margin:14px 0 14px}
  .breadcrumb{font-size:12px;gap:6px}
  .breadcrumb .current{max-width:200px}
  .article-cover{height:200px;margin-bottom:26px;border-radius:14px}
  .article-layout{grid-template-columns:1fr;gap:26px}
  .article-side{position:static}
  .article-body{padding:24px 20px;font-size:16px;border-radius:14px}
  .article-body h2{font-size:23px;margin-top:28px}
  .article-body h3{font-size:19px}
  .article-body table{font-size:14px}
  .cta-bar{flex-direction:column;align-items:flex-start;padding:30px 22px;margin-top:48px;border-radius:16px}
  .cta-bar h2{font-size:23px}
  .cta-bar .btn{width:100%}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px}
  .footer-brand p{max-width:none}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .news-card{grid-template-columns:118px minmax(0,1fr);gap:14px}
  .news-card .thumb{height:82px}
  .btn{height:48px}
}
@media (max-width:520px){
  .article-meta{gap:10px;font-size:12.5px}
  .meta-dot{display:none}
  .footer-grid{grid-template-columns:1fr;gap:22px}
  .news-card{grid-template-columns:1fr}
  .news-card .thumb{height:160px}
  .related-head{flex-direction:column;align-items:flex-start;gap:6px}
  .article-cover{height:170px}
  .back-links{gap:16px;font-size:13.5px}
}

/* roulang page: category1 */
:root{
  --bg-deep:#060b16;
  --bg:#0a1424;
  --surface:#0f1e33;
  --surface-2:#132540;
  --glass:rgba(14,29,48,.66);
  --line:rgba(110,231,255,.18);
  --line-strong:rgba(110,231,255,.34);
  --primary:#35e0c0;
  --primary-2:#2bb6d8;
  --accent:#ff9d4d;
  --text:#eaf4ff;
  --muted:#93a9c0;
  --radius-lg:18px;
  --radius:12px;
  --radius-sm:10px;
  --shadow:0 18px 50px rgba(0,0,0,.35);
  --shadow-soft:0 8px 24px rgba(0,0,0,.25);
  --sidebar-w:248px;
  --font:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --mono:"DIN Alternate","Bahnschrift",Consolas,monospace;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg-deep);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  font-weight:400;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:
    radial-gradient(1.4px 1.4px at 8% 12%, rgba(255,255,255,.45), transparent 60%),
    radial-gradient(1.2px 1.2px at 24% 38%, rgba(110,231,255,.4), transparent 60%),
    radial-gradient(1.6px 1.6px at 46% 8%, rgba(255,255,255,.35), transparent 60%),
    radial-gradient(1.2px 1.2px at 68% 26%, rgba(110,231,255,.35), transparent 60%),
    radial-gradient(1.5px 1.5px at 84% 54%, rgba(255,255,255,.4), transparent 60%),
    radial-gradient(1.2px 1.2px at 14% 72%, rgba(255,255,255,.3), transparent 60%),
    radial-gradient(1.4px 1.4px at 56% 84%, rgba(110,231,255,.3), transparent 60%),
    radial-gradient(1.2px 1.2px at 92% 88%, rgba(255,255,255,.3), transparent 60%);
  opacity:.55;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--primary);}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.22;letter-spacing:-.01em;color:#fff;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;border:0;background:none;color:inherit;cursor:pointer;}
input,textarea,select{font-family:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px;}

.container,.sx-container{
  width:100%;
  max-width:1280px;
  margin:0 auto;
  padding:0 40px;
}

/* ============ App Shell ============ */
.sx-shell{position:relative;z-index:1;display:flex;min-height:100vh;}

.sx-sidebar{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--sidebar-w);
  padding:26px 18px 22px;
  display:flex;
  flex-direction:column;
  gap:26px;
  background:linear-gradient(180deg,rgba(11,22,40,.99),rgba(6,11,22,.99));
  border-right:1px solid var(--line);
  z-index:60;
  overflow-y:auto;
}
.sx-brand,.brand{
  display:flex;
  align-items:center;
  gap:11px;
  color:var(--text);
  text-decoration:none;
}
.sx-brand-mark,.brand-mark{
  width:40px;height:40px;
  flex:0 0 40px;
  border-radius:12px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  color:#04212a;
  font-size:17px;
  box-shadow:0 0 24px rgba(53,224,192,.36);
}
.sx-brand-text strong,.brand-text strong{
  display:block;
  font-size:16px;
  line-height:1.3;
  letter-spacing:.02em;
  color:#fff;
}
.sx-brand-text small,.brand-text small{
  display:block;
  font-size:11px;
  line-height:1.5;
  letter-spacing:.22em;
  color:var(--muted);
}

.sx-nav{display:flex;flex-direction:column;gap:6px;}
.sx-nav-item{
  position:relative;
  display:flex;
  align-items:center;
  gap:12px;
  height:44px;
  padding:0 14px;
  border-radius:var(--radius);
  color:var(--muted);
  font-size:15px;
  transition:background .2s ease,color .2s ease,transform .2s ease;
}
.sx-nav-item i{width:18px;text-align:center;font-size:15px;}
.sx-nav-item:hover{background:rgba(53,224,192,.08);color:var(--text);}
.sx-nav-item.is-active{background:rgba(53,224,192,.13);color:#fff;}
.sx-nav-item.is-active::before{
  content:"";
  position:absolute;
  left:0;top:10px;bottom:10px;
  width:3px;
  border-radius:3px;
  background:var(--primary);
  box-shadow:0 0 12px rgba(53,224,192,.9);
}
.sx-side-foot{margin-top:auto;display:flex;flex-direction:column;gap:10px;}
.sx-side-foot p{font-size:12px;line-height:1.7;color:var(--muted);margin:0;}

.sx-main{
  flex:1 1 auto;
  min-width:0;
  margin-left:var(--sidebar-w);
  display:flex;
  flex-direction:column;
  min-height:100vh;
}

/* buttons */
.sx-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 24px;
  border-radius:var(--radius);
  font-size:15px;
  font-weight:600;
  letter-spacing:.01em;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,filter .18s ease,background .18s ease,border-color .18s ease;
}
.sx-btn--primary{
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  color:#04212a;
  box-shadow:0 12px 30px rgba(53,224,192,.26);
}
.sx-btn--primary:hover{
  color:#04212a;
  filter:brightness(1.06);
  transform:translateY(-1px);
  box-shadow:0 16px 38px rgba(53,224,192,.42);
}
.sx-btn--primary:active{transform:translateY(1px);}
.sx-btn--ghost{
  background:rgba(14,29,48,.5);
  border-color:var(--line-strong);
  color:var(--text);
}
.sx-btn--ghost:hover{
  color:#fff;
  border-color:var(--primary);
  background:rgba(53,224,192,.1);
  transform:translateY(-1px);
}
.sx-btn--sm{height:42px;padding:0 18px;font-size:14px;}
.sx-btn--block{width:100%;}

/* badges */
.sx-badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:26px;
  padding:0 12px;
  border-radius:999px;
  font-size:12.5px;
  font-weight:600;
  line-height:1;
  white-space:nowrap;
}
.sx-badge--open{background:rgba(53,224,192,.14);color:var(--primary);border:1px solid rgba(53,224,192,.32);}
.sx-badge--live{background:rgba(255,157,77,.14);color:var(--accent);border:1px solid rgba(255,157,77,.34);}
.sx-badge--wait{background:rgba(147,169,192,.12);color:var(--muted);border:1px solid rgba(147,169,192,.28);}
.sx-badge--done{background:rgba(147,169,192,.08);color:#7b90a6;border:1px solid rgba(147,169,192,.2);}
.sx-tag{
  display:inline-flex;
  align-items:center;
  height:30px;
  padding:0 14px;
  border-radius:999px;
  background:rgba(14,29,48,.72);
  border:1px solid var(--line);
  color:#c9dcee;
  font-size:13px;
}

/* progress */
.sx-progress{
  position:relative;
  height:6px;
  width:100%;
  border-radius:999px;
  background:rgba(255,255,255,.08);
  overflow:hidden;
}
.sx-progress > span{
  display:block;
  height:100%;
  border-radius:999px;
  background:linear-gradient(90deg,var(--primary),var(--primary-2));
  box-shadow:0 0 14px rgba(53,224,192,.55);
}

/* ============ topbar & drawer ============ */
.sx-topbar{
  display:none;
  position:fixed;
  top:0;left:0;right:0;
  height:64px;
  padding:0 18px;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  background:rgba(8,16,29,.94);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(12px);
  z-index:70;
}
.sx-menu-btn{
  width:44px;height:44px;
  border-radius:12px;
  border:1px solid var(--line-strong);
  display:grid;place-items:center;
  color:var(--text);
  font-size:17px;
}
.sx-drawer{
  position:fixed;
  top:0;left:0;bottom:0;
  width:272px;
  padding:22px 18px;
  display:flex;flex-direction:column;gap:20px;
  background:linear-gradient(180deg,#0c1a2e,#060b16);
  border-right:1px solid var(--line);
  transform:translateX(-102%);
  transition:transform .28s ease;
  z-index:90;
  overflow-y:auto;
}
body.drawer-open .sx-drawer{transform:translateX(0);}
.sx-drawer-mask{
  position:fixed;
  inset:0;
  background:rgba(3,7,14,.66);
  opacity:0;
  visibility:hidden;
  transition:opacity .26s ease,visibility .26s ease;
  z-index:80;
}
body.drawer-open .sx-drawer-mask{opacity:1;visibility:visible;}

/* ============ Hero ============ */
.sx-hero{
  position:relative;
  overflow:hidden;
  border-bottom:1px solid var(--line);
  background-color:var(--bg-deep);
}
.sx-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:linear-gradient(102deg,rgba(6,11,22,.96) 8%,rgba(6,11,22,.74) 52%,rgba(6,11,22,.9) 100%),url("/assets/images/backpic/back-1.png");
  background-size:cover;
  background-position:center;
  opacity:.9;
}
.sx-hero::after{
  content:"";
  position:absolute;
  right:-120px;bottom:-200px;
  width:620px;height:620px;
  border-radius:50%;
  border:1px solid rgba(110,231,255,.14);
  box-shadow:0 0 0 42px rgba(110,231,255,.05),0 0 0 96px rgba(110,231,255,.035);
  pointer-events:none;
}
.sx-hero-inner{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:minmax(0,1fr) 372px;
  gap:40px;
  align-items:center;
  padding:56px 0 58px;
  min-height:344px;
}
.sx-crumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--muted);
  margin-bottom:16px;
}
.sx-crumb a{color:var(--muted);}
.sx-crumb a:hover{color:var(--primary);}
.sx-crumb span{opacity:.5;}
.sx-hero h1{
  font-size:clamp(30px,4.1vw,46px);
  line-height:1.16;
  margin-bottom:16px;
}
.sx-hero h1 em{
  font-style:normal;
  background:linear-gradient(120deg,var(--primary),var(--primary-2));
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.sx-hero-sub{
  font-size:16.5px;
  color:#c2d6e8;
  max-width:600px;
  margin-bottom:26px;
  line-height:1.8;
}
.sx-hero-actions{display:flex;flex-wrap:wrap;gap:12px;}
.sx-hero-card{
  background:var(--glass);
  border:1px solid var(--line-strong);
  border-radius:var(--radius-lg);
  padding:24px;
  box-shadow:var(--shadow),inset 0 0 0 1px rgba(255,255,255,.04);
  backdrop-filter:blur(14px);
}
.sx-hero-card-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:13.5px;
  color:var(--muted);
  margin-bottom:16px;
}
.sx-dot{
  width:8px;height:8px;border-radius:50%;
  background:var(--primary);
  box-shadow:0 0 10px var(--primary);
}
.sx-kpi-row{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:14px;
  margin-bottom:18px;
}
.sx-kpi{
  background:rgba(6,11,22,.6);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:14px 16px;
}
.sx-kpi strong{
  display:block;
  font-family:var(--mono);
  font-size:34px;
  line-height:1.1;
  color:#fff;
  letter-spacing:.02em;
}
.sx-kpi span{display:block;font-size:12.5px;color:var(--muted);margin-top:4px;}
.sx-hero-progress{margin-bottom:18px;}
.sx-hero-progress-meta{
  display:flex;
  justify-content:space-between;
  font-size:12.5px;
  color:var(--muted);
  margin-top:8px;
}
.sx-hero-progress-meta strong{color:var(--primary);font-family:var(--mono);}

/* ============ sections ============ */
.sx-section{padding:80px 0;}
.sx-section--tight{padding:64px 0;}
.sx-section-head{max-width:760px;margin-bottom:40px;}
.sx-eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:28px;
  padding:0 14px;
  border-radius:999px;
  background:rgba(53,224,192,.1);
  border:1px solid rgba(53,224,192,.26);
  color:var(--primary);
  font-size:12.5px;
  letter-spacing:.08em;
  margin-bottom:16px;
}
.sx-section-head h2{
  font-size:clamp(24px,3vw,36px);
  margin-bottom:14px;
}
.sx-section-head p{color:var(--muted);font-size:16px;margin:0;}

.sx-layout-84{
  display:grid;
  grid-template-columns:minmax(0,1fr) 344px;
  gap:32px;
  align-items:start;
}

/* timeline */
.sx-timeline{display:flex;flex-direction:column;gap:16px;}
.sx-event{
  display:grid;
  grid-template-columns:92px minmax(0,1fr);
  gap:20px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:22px 24px;
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.sx-event:hover{
  transform:translateY(-2px);
  border-color:rgba(53,224,192,.42);
  box-shadow:var(--shadow);
}
.sx-event-date{
  display:flex;
  flex-direction:column;
  align-items:flex-start;
  justify-content:center;
  border-right:1px solid var(--line);
  padding-right:16px;
}
.sx-event-date strong{
  font-family:var(--mono);
  font-size:36px;
  line-height:1;
  color:#fff;
  letter-spacing:.02em;
}
.sx-event-date span{font-size:13px;color:var(--muted);margin-top:6px;}
.sx-event-head{
  display:flex;
  align-items:center;
  gap:12px;
  flex-wrap:wrap;
  margin-bottom:8px;
}
.sx-event-head h3{font-size:19px;}
.sx-event p{color:var(--muted);font-size:14.5px;margin-bottom:14px;}
.sx-event-foot{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  margin-top:12px;
  flex-wrap:wrap;
}
.sx-meta{font-size:12.5px;color:#7f95ad;font-family:var(--mono);letter-spacing:.02em;}
.sx-link{
  display:inline-flex;
  align-items:center;
  gap:7px;
  font-size:14px;
  font-weight:600;
  color:var(--primary);
}
.sx-link i{font-size:12px;transition:transform .2s ease;}
.sx-link:hover i{transform:translateX(4px);}

/* side rules card */
.sx-aside-card{
  position:sticky;
  top:96px;
  background:var(--glass);
  border:1px solid var(--line-strong);
  border-radius:var(--radius-lg);
  padding:26px;
  box-shadow:var(--shadow-soft);
  backdrop-filter:blur(12px);
}
.sx-aside-card h3{font-size:18px;margin-bottom:6px;}
.sx-aside-card > p{font-size:13.5px;color:var(--muted);margin-bottom:18px;}
.sx-rule-list{display:flex;flex-direction:column;gap:14px;margin-bottom:22px;}
.sx-rule-list li{
  display:grid;
  grid-template-columns:26px minmax(0,1fr);
  gap:10px;
  font-size:14px;
  color:#c6d8e9;
  line-height:1.7;
}
.sx-rule-list i{
  width:26px;height:26px;
  display:grid;place-items:center;
  border-radius:8px;
  background:rgba(53,224,192,.12);
  color:var(--primary);
  font-size:12px;
  margin-top:2px;
}
.sx-aside-note{
  font-size:12.5px;
  color:var(--muted);
  border-left:2px solid var(--accent);
  padding-left:12px;
  margin-bottom:18px;
  line-height:1.7;
}

/* feature split */
.sx-split{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:36px;
  align-items:center;
}
.sx-figure{
  position:relative;
  border-radius:var(--radius-lg);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  min-height:320px;
}
.sx-figure img{width:100%;height:100%;object-fit:cover;}
.sx-figure::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(6,11,22,.15),rgba(6,11,22,.72));
}
.sx-figure figcaption{
  position:absolute;
  left:20px;right:20px;bottom:18px;
  z-index:2;
  font-size:13.5px;
  color:#dbe9f6;
  display:flex;
  align-items:center;
  gap:8px;
}
.sx-split-body h2{font-size:clamp(23px,2.6vw,32px);margin-bottom:16px;}
.sx-split-points{display:flex;flex-direction:column;gap:16px;margin:22px 0 24px;}
.sx-split-points li{
  display:grid;
  grid-template-columns:34px minmax(0,1fr);
  gap:14px;
}
.sx-split-points span{
  width:34px;height:34px;
  border-radius:10px;
  display:grid;place-items:center;
  background:rgba(53,224,192,.12);
  border:1px solid rgba(53,224,192,.24);
  color:var(--primary);
  font-family:var(--mono);
  font-size:13px;
}
.sx-split-points h4{font-size:16px;margin-bottom:4px;}
.sx-split-points p{font-size:14px;color:var(--muted);margin:0;}
.sx-tag-row{display:flex;flex-wrap:wrap;gap:10px;}

/* FAQ */
.sx-faq{display:flex;flex-direction:column;gap:12px;max-width:920px;}
.sx-faq-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  transition:border-color .2s ease,background .2s ease;
}
.sx-faq-item:hover{background:var(--surface-2);}
.sx-faq-item.is-open{border-color:rgba(53,224,192,.42);}
.sx-faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  min-height:60px;
  padding:16px 22px;
  text-align:left;
  font-size:16px;
  font-weight:600;
  color:#fff;
  border-left:3px solid transparent;
  transition:border-color .2s ease;
}
.sx-faq-item.is-open .sx-faq-q{border-left-color:var(--primary);}
.sx-faq-q i{color:var(--primary);font-size:13px;transition:transform .25s ease;flex:0 0 auto;}
.sx-faq-item.is-open .sx-faq-q i{transform:rotate(180deg);}
.sx-faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .3s ease;
}
.sx-faq-item.is-open .sx-faq-a{max-height:460px;}
.sx-faq-a p{
  padding:0 22px 20px 22px;
  font-size:14.5px;
  color:var(--muted);
  margin:0;
  line-height:1.85;
}

/* CTA */
.sx-cta{
  position:relative;
  overflow:hidden;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  background-color:var(--bg);
}
.sx-cta::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:linear-gradient(100deg,rgba(6,11,22,.95),rgba(6,11,22,.72)),url("/assets/images/backpic/back-3.webp");
  background-size:cover;
  background-position:center;
  opacity:.75;
}
.sx-cta-inner{
  position:relative;
  z-index:2;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  flex-wrap:wrap;
  padding:56px 0;
}
.sx-cta-inner h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:10px;}
.sx-cta-inner p{color:var(--muted);font-size:15px;margin:0;max-width:620px;}
.sx-cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* Footer */
.site-footer{
  margin-top:auto;
  position:relative;
  background:linear-gradient(180deg,#070f1c,#050a13);
  border-top:1px solid var(--line);
  padding:56px 0 26px;
}
.site-footer::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;height:1px;
  background-image:radial-gradient(circle,rgba(110,231,255,.55) 1px,transparent 1px);
  background-size:18px 18px;
  opacity:.5;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.4fr;
  gap:36px;
  padding-bottom:36px;
  border-bottom:1px solid rgba(110,231,255,.12);
}
.footer-brand p{font-size:13.5px;color:var(--muted);margin:16px 0 0;max-width:340px;line-height:1.8;}
.footer-col h4{font-size:14px;color:#fff;margin-bottom:14px;letter-spacing:.04em;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col li{font-size:13.5px;color:var(--muted);line-height:1.7;}
.footer-col a{color:var(--muted);font-size:13.5px;}
.footer-col a:hover{color:var(--primary);}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  padding-top:22px;
  font-size:12.5px;
  color:#71869d;
}

/* ============ responsive ============ */
@media screen and (max-width:1199px){
  :root{--sidebar-w:84px;}
  .sx-sidebar{padding:22px 12px;align-items:center;}
  .sx-brand-text,.sx-nav-label,.sx-side-foot p{display:none;}
  .sx-brand{justify-content:center;}
  .sx-nav{width:100%;}
  .sx-nav-item{justify-content:center;padding:0;height:46px;}
  .sx-nav-item i{font-size:17px;}
  .sx-side-foot{width:100%;align-items:center;}
  .sx-side-foot .sx-btn{padding:0;width:46px;height:46px;}
  .sx-side-foot .sx-btn span{display:none;}
  .sx-layout-84{grid-template-columns:minmax(0,1fr) 300px;gap:24px;}
  .sx-hero-inner{grid-template-columns:minmax(0,1fr) 330px;gap:28px;}
  .container,.sx-container{padding:0 28px;}
}

@media screen and (max-width:1024px){
  .sx-hero-inner{grid-template-columns:minmax(0,1fr);}
  .sx-hero-card{max-width:460px;}
  .sx-layout-84{grid-template-columns:minmax(0,1fr);}
  .sx-aside-card{position:static;}
  .sx-split{grid-template-columns:minmax(0,1fr);}
  .sx-figure{min-height:260px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}

@media screen and (max-width:768px){
  .sx-sidebar{display:none;}
  .sx-main{margin-left:0;padding-top:64px;}
  .sx-topbar{display:flex;}
  .container,.sx-container{padding:0 20px;}
  .sx-section{padding:52px 0;}
  .sx-section--tight{padding:44px 0;}
  .sx-hero-inner{padding:36px 0 40px;min-height:0;}
  .sx-hero-sub{font-size:15.5px;}
  .sx-hero-actions .sx-btn{flex:1 1 auto;}
  .sx-event{grid-template-columns:minmax(0,1fr);gap:14px;padding:20px;}
  .sx-event-date{flex-direction:row;align-items:baseline;gap:8px;border-right:0;border-bottom:1px solid var(--line);padding:0 0 10px;}
  .sx-event-date strong{font-size:28px;}
  .sx-event-date span{margin-top:0;}
  .sx-cta-inner{padding:44px 0;}
  .sx-cta-actions{width:100%;}
  .sx-cta-actions .sx-btn{flex:1 1 100%;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .sx-faq-q{min-height:56px;padding:14px 16px;font-size:15px;}
  .sx-faq-a p{padding:0 16px 16px;}
}

@media screen and (max-width:520px){
  body{font-size:15.5px;}
  .sx-hero h1{font-size:30px;}
  .sx-kpi strong{font-size:30px;}
  .sx-hero-card{padding:18px;}
  .sx-event-head h3{font-size:17px;}
  .sx-aside-card{padding:20px;}
  .sx-split-points{grid-template-columns:1fr;}
  .sx-tag{font-size:12px;height:28px;padding:0 12px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
}

/* roulang page: category2 */
:root{
  --bg-deep:#060b16;
  --bg:#0a1424;
  --surface:#0f1e33;
  --surface-2:#122441;
  --surface-glass:rgba(14,29,48,.66);
  --line:rgba(110,231,255,.18);
  --line-strong:rgba(110,231,255,.34);
  --primary:#35e0c0;
  --primary-deep:#1aa8c9;
  --accent:#ff9d4d;
  --text:#eaf4ff;
  --muted:#93a9c0;
  --radius-lg:18px;
  --radius-sm:12px;
  --shadow:0 18px 50px rgba(0,0,0,.35);
  --shadow-hover:0 24px 62px rgba(0,0,0,.48);
  --sidebar-w:248px;
  --font-cn:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-num:"DIN Alternate","Bahnschrift","Consolas","Courier New",monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16.5px;
  line-height:1.8;
  color:var(--text);
  background-color:var(--bg-deep);
  background-image:
    radial-gradient(1.5px 1.5px at 12% 18%, rgba(255,255,255,.30) 50%, transparent 51%),
    radial-gradient(1.2px 1.2px at 34% 8%, rgba(255,255,255,.22) 50%, transparent 51%),
    radial-gradient(1.6px 1.6px at 62% 22%, rgba(255,255,255,.26) 50%, transparent 51%),
    radial-gradient(1.1px 1.1px at 82% 12%, rgba(255,255,255,.20) 50%, transparent 51%),
    radial-gradient(1.4px 1.4px at 92% 42%, rgba(255,255,255,.18) 50%, transparent 51%),
    radial-gradient(1.2px 1.2px at 22% 62%, rgba(255,255,255,.14) 50%, transparent 51%),
    radial-gradient(900px 520px at 82% -8%, rgba(53,224,192,.10), transparent 62%),
    radial-gradient(700px 420px at 8% 96%, rgba(255,157,77,.07), transparent 60%),
    linear-gradient(180deg,#060b16 0%,#08111f 46%,#060b16 100%);
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease,opacity .2s ease;}
a:hover,a:focus{color:#7ff3dd;}
p{margin:0 0 1em;}
ul,ol{margin:0 0 1em;padding-left:1.2em;}
h1,h2,h3,h4{margin:0 0 .6em;font-weight:700;letter-spacing:-.01em;line-height:1.2;color:var(--text);}
h1{font-size:clamp(30px,4vw,46px);line-height:1.15;}
h2{font-size:clamp(24px,2.6vw,34px);}
h3{font-size:21px;}
::selection{background:rgba(53,224,192,.32);color:#fff;}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px;}
button{font-family:inherit;}
.container{width:100%;max-width:1280px;margin:0 auto;padding:0 40px;}

/* ---------- 侧栏导航 ---------- */
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--sidebar-w);
  background:linear-gradient(180deg,#08111f 0%,#060b16 100%);
  border-right:1px solid var(--line);
  padding:26px 18px 20px;
  display:flex;flex-direction:column;gap:22px;
  z-index:60;overflow-y:auto;
}
.brand{display:flex;align-items:center;gap:12px;color:var(--text);}
.brand:hover{color:var(--text);}
.brand-mark{
  width:42px;height:42px;flex:0 0 42px;border-radius:12px;
  display:grid;place-items:center;font-size:17px;color:#04121a;
  background:linear-gradient(135deg,var(--primary) 0%,var(--primary-deep) 100%);
  box-shadow:0 10px 26px rgba(53,224,192,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-text strong{font-size:17px;letter-spacing:.02em;}
.brand-text small{font-size:11.5px;color:var(--muted);letter-spacing:.14em;margin-top:3px;}
.nav{display:flex;flex-direction:column;gap:6px;}
.nav-item{
  position:relative;display:flex;align-items:center;gap:12px;
  min-height:44px;padding:0 14px;border-radius:12px;
  color:var(--muted);font-size:14.5px;letter-spacing:.01em;
  border:1px solid transparent;transition:all .22s ease;
}
.nav-item i{width:18px;text-align:center;font-size:14px;opacity:.9;}
.nav-item:hover{color:var(--text);background:rgba(53,224,192,.08);border-color:rgba(53,224,192,.16);}
.nav-item.is-active{
  color:#eafffb;background:rgba(53,224,192,.14);
  border-color:rgba(53,224,192,.28);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
}
.nav-item.is-active::before{
  content:"";position:absolute;left:-1px;top:10px;bottom:10px;width:3px;
  border-radius:3px;background:var(--primary);box-shadow:0 0 14px rgba(53,224,192,.9);
}
.sidebar-foot{margin-top:auto;display:flex;flex-direction:column;gap:12px;}
.sidebar-foot p{font-size:12.5px;line-height:1.7;color:var(--muted);margin:0;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 24px;border-radius:var(--radius-sm);border:1px solid transparent;
  font-size:15px;font-weight:700;letter-spacing:.02em;cursor:pointer;
  transition:transform .18s ease,box-shadow .22s ease,filter .2s ease,background .2s ease,border-color .2s ease;
}
.btn-primary{
  color:#04161c;
  background:linear-gradient(135deg,#3ce9c8 0%,#24b7d6 100%);
  box-shadow:0 12px 30px rgba(53,224,192,.28),inset 0 1px 0 rgba(255,255,255,.35);
}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 18px 40px rgba(53,224,192,.38);color:#04161c;}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{
  color:var(--text);background:rgba(255,255,255,.03);
  border-color:var(--line-strong);
}
.btn-ghost:hover{background:rgba(53,224,192,.10);border-color:var(--primary);color:#eafffb;transform:translateY(-1px);}
.btn-block{width:100%;}
.btn-sm{padding:9px 16px;font-size:13.5px;border-radius:10px;}

/* ---------- 主体布局 ---------- */
.shell-body{margin-left:var(--sidebar-w);min-height:100vh;display:flex;flex-direction:column;}
.mobile-bar{display:none;}

/* ---------- 通用板块 ---------- */
.section{padding:76px 0;}
.section-head{max-width:760px;margin-bottom:34px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--primary);margin-bottom:14px;
}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--primary);opacity:.7;}
.section-head p{color:var(--muted);font-size:16px;margin:10px 0 0;max-width:660px;}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 12px;border-radius:999px;
  font-size:12.5px;letter-spacing:.03em;
  color:#b6f6ea;background:rgba(53,224,192,.13);
  border:1px solid rgba(53,224,192,.28);white-space:nowrap;
}
.chip-accent{color:#ffd7b3;background:rgba(255,157,77,.14);border-color:rgba(255,157,77,.34);}
.chip-muted{color:var(--muted);background:rgba(147,169,192,.10);border-color:rgba(147,169,192,.22);}

/* ---------- Hero ---------- */
.page-hero{position:relative;margin:28px 0 0;}
.hero-card{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background-image:linear-gradient(110deg,rgba(6,11,22,.94) 0%,rgba(8,20,36,.86) 52%,rgba(8,20,36,.66) 100%),url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
  box-shadow:var(--shadow);
  padding:52px 44px;
  min-height:300px;
  display:flex;align-items:center;
}
.hero-card::after{
  content:"";position:absolute;inset:auto 0 0 0;height:2px;
  background:linear-gradient(90deg,transparent,rgba(53,224,192,.65),transparent);
}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:40px;align-items:center;width:100%;}
.hero-copy h1{margin:14px 0 16px;max-width:15em;}
.hero-copy h1 em{font-style:normal;color:var(--primary);}
.hero-copy p{color:#c6d8e8;font-size:16.5px;max-width:34em;margin-bottom:26px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}

.param-card{
  border-radius:var(--radius-lg);
  background:var(--surface-glass);
  border:1px solid var(--line-strong);
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.07);
  backdrop-filter:blur(10px);
  padding:24px;
}
.param-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px;}
.param-head h2{font-size:15px;letter-spacing:.04em;color:#d7e9f7;margin:0;font-weight:600;}
.param-list{list-style:none;margin:0 0 18px;padding:0;display:flex;flex-direction:column;gap:12px;}
.param-list li{display:flex;align-items:baseline;justify-content:space-between;gap:12px;font-size:14px;color:var(--muted);}
.param-list strong{font-family:var(--font-num);font-size:19px;color:var(--text);font-weight:700;letter-spacing:.02em;}
.param-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px;}
.param-foot{display:flex;align-items:center;gap:18px;padding-top:16px;border-top:1px solid rgba(110,231,255,.14);}
.ring{
  position:relative;width:104px;height:104px;flex:0 0 104px;border-radius:50%;
  background:conic-gradient(var(--primary) 0 62%,rgba(255,255,255,.08) 62% 100%);
  display:grid;place-items:center;
  box-shadow:0 0 26px rgba(53,224,192,.22);
}
.ring::before{content:"";position:absolute;inset:9px;border-radius:50%;background:#0b1728;border:1px solid rgba(110,231,255,.14);}
.ring span{position:relative;font-family:var(--font-num);font-size:24px;font-weight:700;color:#eafffb;}
.param-foot-text{font-size:13px;line-height:1.7;color:var(--muted);}
.param-foot-text strong{color:var(--text);display:block;font-size:14px;margin-bottom:2px;}

/* ---------- 双栏：三个阶段 ---------- */
.split{display:grid;grid-template-columns:7fr 5fr;gap:24px;align-items:start;}
.stage-list{display:flex;flex-direction:column;gap:20px;}
.stage-card{
  display:grid;grid-template-columns:1fr 200px;gap:24px;align-items:center;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:24px;box-shadow:var(--shadow);transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.stage-card:hover{transform:translateY(-2px);border-color:var(--line-strong);box-shadow:var(--shadow-hover);}
.stage-num{font-family:var(--font-num);font-size:13px;letter-spacing:.2em;color:var(--primary);margin-bottom:8px;}
.stage-card h3{margin:0 0 8px;font-size:20px;}
.stage-card p{color:var(--muted);font-size:15px;margin:0;}
.stage-figure{position:relative;border-radius:var(--radius-sm);overflow:hidden;border:1px solid rgba(110,231,255,.16);}
.stage-figure img{width:100%;height:128px;object-fit:cover;}
.stage-figure::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,11,22,.12),rgba(6,11,22,.62));}
.side-sticky{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px;}
.note-card{
  background:linear-gradient(160deg,rgba(18,36,65,.92),rgba(10,20,36,.92));
  border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:24px;box-shadow:var(--shadow);
}
.note-card h3{font-size:17px;margin-bottom:14px;}
.note-card ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:12px;}
.note-card li{display:flex;gap:10px;font-size:14px;color:var(--muted);line-height:1.7;}
.note-card li i{color:var(--primary);font-size:13px;margin-top:5px;}
.tip-line{
  border-left:3px solid var(--accent);
  background:rgba(255,157,77,.08);
  border-radius:0 10px 10px 0;
  padding:14px 16px;font-size:14px;color:#ffd7b3;line-height:1.7;
}

/* ---------- 三步流程条 ---------- */
.flow{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;position:relative;}
.flow::before{
  content:"";position:absolute;left:8%;right:8%;top:38px;height:1px;
  background:linear-gradient(90deg,rgba(53,224,192,.10),rgba(53,224,192,.42),rgba(53,224,192,.10));
}
.flow-item{position:relative;padding-top:0;}
.flow-node{
  width:44px;height:44px;border-radius:50%;display:grid;place-items:center;
  font-family:var(--font-num);font-size:14px;font-weight:700;color:#04161c;
  background:linear-gradient(135deg,#3ce9c8,#24b7d6);
  box-shadow:0 0 0 6px rgba(53,224,192,.10),0 0 24px rgba(53,224,192,.45);
  margin-bottom:20px;
}
.flow-item:nth-child(2){margin-top:26px;}
.flow-item:nth-child(3){margin-top:52px;}
.flow-item h3{font-size:18px;margin-bottom:8px;}
.flow-item p{color:var(--muted);font-size:14.5px;margin:0;}

/* ---------- 训练维度排行 ---------- */
.rank-wrap{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:12px 28px;box-shadow:var(--shadow);
}
.rank-row{
  display:grid;grid-template-columns:52px 1.1fr 2fr 66px;gap:18px;align-items:center;
  padding:18px 0;border-bottom:1px dashed rgba(110,231,255,.14);
}
.rank-row:last-child{border-bottom:0;}
.rank-idx{font-family:var(--font-num);font-size:16px;color:var(--muted);letter-spacing:.08em;}
.rank-row h3{font-size:16px;margin:0;}
.rank-row p{font-size:13px;color:var(--muted);margin:3px 0 0;}
.bar{height:6px;border-radius:999px;background:rgba(255,255,255,.07);overflow:hidden;}
.bar span{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,#35e0c0,#24b7d6);box-shadow:0 0 12px rgba(53,224,192,.55);}
.bar.is-accent span{background:linear-gradient(90deg,#ff9d4d,#ffb877);box-shadow:0 0 12px rgba(255,157,77,.5);}
.rank-val{font-family:var(--font-num);font-size:17px;color:#eafffb;text-align:right;}
.rank-top .rank-idx{color:var(--primary);}

/* ---------- FAQ ---------- */
.faq{display:flex;flex-direction:column;gap:14px;max-width:900px;}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-sm);
  overflow:hidden;transition:border-color .22s ease,background .22s ease;
}
.faq-item:hover{border-color:var(--line-strong);background:var(--surface-2);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;min-height:48px;font-size:16px;font-weight:600;color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary i{color:var(--primary);font-size:13px;transition:transform .25s ease;}
.faq-item[open] summary i{transform:rotate(180deg);}
.faq-body{padding:0 22px 20px;font-size:15px;color:var(--muted);line-height:1.85;}
.faq-body p{margin:0;border-left:3px solid var(--primary);padding-left:14px;}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);
  border:1px solid var(--line-strong);
  background-image:linear-gradient(100deg,rgba(8,20,36,.96),rgba(10,25,44,.80)),url("/assets/images/backpic/back-3.webp");
  background-size:cover;background-position:center;
  box-shadow:var(--shadow);
  padding:40px 44px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-band h2{margin:0 0 8px;font-size:clamp(22px,2.4vw,30px);}
.cta-band p{margin:0;color:var(--muted);font-size:15px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:auto;background:#040a13;border-top:1px solid var(--line);
  padding:56px 0 26px;
  background-image:radial-gradient(1.4px 1.4px at 18% 24%,rgba(255,255,255,.16) 50%,transparent 51%),
    radial-gradient(1.2px 1.2px at 56% 16%,rgba(255,255,255,.12) 50%,transparent 51%),
    radial-gradient(1.3px 1.3px at 84% 30%,rgba(255,255,255,.14) 50%,transparent 51%);
}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.3fr;gap:32px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:14px;line-height:1.8;color:var(--muted);max-width:30em;margin:0;}
.footer-col h4{font-size:14px;letter-spacing:.08em;color:#cfe2f2;margin:0 0 16px;font-weight:600;}
.footer-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:11px;}
.footer-col li{font-size:14px;color:var(--muted);line-height:1.7;}
.footer-col a{color:var(--muted);}
.footer-col a:hover{color:var(--primary);text-decoration:underline;text-underline-offset:4px;}
.footer-bottom{
  margin-top:38px;padding-top:20px;border-top:1px solid rgba(110,231,255,.12);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12.5px;color:#7e93aa;
}

/* ---------- 移动端抽屉 ---------- */
.drawer-backdrop{
  position:fixed;inset:0;background:rgba(3,7,13,.68);backdrop-filter:blur(2px);
  opacity:0;pointer-events:none;transition:opacity .25s ease;z-index:88;
}
.drawer-backdrop.is-open{opacity:1;pointer-events:auto;}
.drawer{
  position:fixed;top:0;left:0;bottom:0;width:286px;max-width:86vw;
  background:linear-gradient(180deg,#08111f,#060b16);
  border-right:1px solid var(--line);z-index:90;
  padding:20px 18px;display:flex;flex-direction:column;gap:20px;
  transform:translateX(-102%);transition:transform .28s ease;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;}
.drawer-close{
  width:38px;height:38px;border-radius:10px;border:1px solid var(--line);
  background:rgba(255,255,255,.04);color:var(--text);cursor:pointer;font-size:15px;
}
.drawer-close:hover{border-color:var(--primary);color:var(--primary);}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1199px){
  :root{--sidebar-w:84px;}
  .sidebar{padding:22px 12px 16px;align-items:center;}
  .brand-text{display:none;}
  .nav{width:100%;align-items:center;}
  .nav-item{justify-content:center;padding:0;width:100%;}
  .nav-label{display:none;}
  .nav-item i{font-size:16px;}
  .sidebar-foot{width:100%;}
  .sidebar-foot p{display:none;}
  .sidebar .btn span{display:none;}
  .sidebar .btn{padding:13px 0;width:100%;}
  .container{padding:0 30px;}
  .section{padding:64px 0;}
}
@media screen and (max-width:991px){
  .hero-grid{grid-template-columns:1fr;gap:28px;}
  .hero-card{padding:40px 30px;}
  .split{grid-template-columns:1fr;}
  .side-sticky{position:static;}
  .stage-card{grid-template-columns:1fr;}
  .stage-figure img{height:170px;}
  .flow{grid-template-columns:1fr;gap:28px;}
  .flow::before{display:none;}
  .flow-item:nth-child(2),.flow-item:nth-child(3){margin-top:0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media screen and (max-width:767px){
  .sidebar{display:none;}
  .shell-body{margin-left:0;}
  .mobile-bar{
    display:flex;align-items:center;justify-content:space-between;gap:12px;
    position:sticky;top:0;z-index:70;height:64px;padding:0 18px;
    background:rgba(8,17,31,.94);backdrop-filter:blur(12px);
    border-bottom:1px solid var(--line);
  }
  .mobile-bar .brand-mark{width:36px;height:36px;flex-basis:36px;font-size:15px;border-radius:10px;}
  .mobile-bar .brand-text strong{font-size:15.5px;}
  .mobile-bar .brand-text small{font-size:10.5px;}
  .bar-btn{
    width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
    background:rgba(255,255,255,.04);color:var(--text);font-size:16px;cursor:pointer;
  }
  .bar-btn:hover{border-color:var(--primary);color:var(--primary);}
  .container{padding:0 20px;}
  .section{padding:52px 0;}
  .page-hero{margin-top:18px;}
  .hero-card{padding:32px 22px;border-radius:16px;}
  .hero-copy p{font-size:15.5px;}
  .hero-actions .btn{width:100%;}
  .param-foot{flex-wrap:wrap;}
  .rank-wrap{padding:8px 18px;}
  .rank-row{grid-template-columns:38px 1fr 58px;gap:12px;row-gap:6px;padding:16px 0;}
  .rank-row .bar{grid-column:1 / -1;}
  .cta-band{padding:30px 22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
}
@media screen and (max-width:520px){
  h1{font-size:30px;}
  h2{font-size:24px;}
  .hero-card{padding:26px 18px;}
  .stage-card{padding:20px;}
  .faq-item summary{font-size:15px;padding:18px;}
  .faq-body{padding:0 18px 18px;}
}

/* roulang page: category3 */
:root{
  --bg-deep:#060b16;
  --bg:#0a1424;
  --surface:#0f1e33;
  --surface-2:#122542;
  --surface-glass:rgba(14,29,48,.66);
  --line:rgba(110,231,255,.18);
  --line-strong:rgba(110,231,255,.38);
  --primary:#35e0c0;
  --primary-2:#2bb6e8;
  --accent:#ff9d4d;
  --text:#eaf4ff;
  --muted:#93a9c0;
  --radius-lg:18px;
  --radius:12px;
  --radius-sm:8px;
  --shadow:0 18px 50px rgba(0,0,0,.35);
  --shadow-soft:0 10px 30px rgba(0,0,0,.25);
  --sidebar-w:248px;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-deep);
  color:var(--text);
  font-family:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.78;
  -webkit-font-smoothing:antialiased;
  background-image:
    radial-gradient(circle at 12% 8%, rgba(53,224,192,.08), transparent 42%),
    radial-gradient(circle at 88% 0%, rgba(43,182,232,.09), transparent 46%);
  background-attachment:fixed;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--primary);text-decoration:none;transition:color .2s var(--ease);}
a:hover,a:focus{color:#7cf3dd;}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:3px;
  border-radius:6px;
}
p{margin:0 0 1em;}
ul,ol{margin:0 0 1em;padding-left:1.25em;}
h1,h2,h3,h4{margin:0 0 .6em;font-weight:700;letter-spacing:-.01em;line-height:1.25;color:#f4fbff;}
h1{font-size:clamp(30px,4vw,48px);line-height:1.16;}
h2{font-size:clamp(24px,2.6vw,34px);}
h3{font-size:clamp(18px,1.6vw,21px);}
strong{color:#fff;}
::selection{background:rgba(53,224,192,.3);color:#fff;}
.skip-link{
  position:absolute;left:-9999px;top:0;z-index:200;
  background:var(--primary);color:#04241f;padding:10px 18px;border-radius:0 0 10px 0;font-weight:700;
}
.skip-link:focus{left:0;}

/* ============ App Shell ============ */
.app-shell{display:flex;min-height:100vh;}
.sidebar{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--sidebar-w);
  padding:26px 18px 22px;
  background:linear-gradient(180deg,rgba(10,20,36,.98),rgba(6,11,22,.99));
  border-right:1px solid var(--line);
  display:flex;flex-direction:column;gap:22px;
  z-index:80;
  transition:width .28s var(--ease),padding .28s var(--ease);
  overflow-y:auto;
  scrollbar-width:thin;
  scrollbar-color:rgba(110,231,255,.3) transparent;
}
.sidebar::after{
  content:"";position:absolute;top:0;right:0;bottom:0;width:1px;
  background:linear-gradient(180deg,transparent,rgba(53,224,192,.45),transparent);
  opacity:.6;pointer-events:none;
}
.brand{display:flex;align-items:center;gap:12px;color:var(--text);}
.brand:hover{color:var(--text);}
.brand-mark{
  flex:0 0 auto;width:40px;height:40px;border-radius:12px;
  display:grid;place-items:center;
  background:linear-gradient(140deg,var(--primary),var(--primary-2));
  color:#04241f;font-size:17px;
  box-shadow:0 8px 22px rgba(53,224,192,.3);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-text strong{font-size:17px;letter-spacing:.02em;white-space:nowrap;}
.brand-text small{font-size:11px;color:var(--muted);letter-spacing:.22em;white-space:nowrap;}
.nav{display:flex;flex-direction:column;gap:6px;}
.nav-item{
  position:relative;
  display:flex;align-items:center;gap:12px;
  height:44px;padding:0 14px;border-radius:var(--radius);
  color:var(--muted);font-size:14.5px;font-weight:500;
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.nav-item i{width:20px;text-align:center;font-size:15px;flex:0 0 auto;}
.nav-item:hover{background:rgba(53,224,192,.08);color:var(--text);}
.nav-item.is-active{
  background:rgba(53,224,192,.12);
  color:#d9fff7;
  font-weight:700;
}
.nav-item.is-active::before{
  content:"";position:absolute;left:0;top:9px;bottom:9px;width:3px;border-radius:0 3px 3px 0;
  background:var(--primary);
  box-shadow:0 0 14px rgba(53,224,192,.8);
}
.sidebar-cta{
  margin-top:auto;padding:18px;border-radius:var(--radius-lg);
  background:var(--surface-glass);
  border:1px solid var(--line);
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.02);
}
.sidebar-cta p{font-size:13px;color:var(--muted);margin-bottom:14px;line-height:1.65;}
.nav-label{white-space:nowrap;}

.app-main{
  margin-left:var(--sidebar-w);
  width:calc(100% - var(--sidebar-w));
  min-height:100vh;
  display:flex;flex-direction:column;
}
.container{width:100%;max-width:1280px;margin:0 auto;padding:0 40px;}

/* ============ 移动端顶栏 ============ */
.topbar{
  display:none;
  position:sticky;top:0;z-index:90;
  height:64px;align-items:center;justify-content:space-between;
  padding:0 18px;
  background:rgba(6,11,22,.92);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.topbar .brand-mark{width:34px;height:34px;font-size:15px;border-radius:10px;}
.topbar .brand-text strong{font-size:15px;}
.menu-toggle{
  width:44px;height:44px;border-radius:12px;
  background:rgba(53,224,192,.1);
  border:1px solid var(--line);
  color:var(--text);font-size:18px;cursor:pointer;
  display:grid;place-items:center;
  transition:background .2s var(--ease);
}
.menu-toggle:hover{background:rgba(53,224,192,.2);}
.drawer{
  position:fixed;top:0;left:0;bottom:0;width:286px;max-width:84vw;
  background:linear-gradient(180deg,#0a1424,#060b16);
  border-right:1px solid var(--line);
  z-index:120;
  padding:24px 18px;
  display:flex;flex-direction:column;gap:20px;
  transform:translateX(-104%);
  transition:transform .3s var(--ease);
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-overlay{
  position:fixed;inset:0;background:rgba(3,7,14,.7);
  backdrop-filter:blur(3px);
  z-index:110;opacity:0;visibility:hidden;transition:opacity .3s var(--ease),visibility .3s;
}
.drawer-overlay.is-open{opacity:1;visibility:visible;}
.drawer-close{
  align-self:flex-end;width:40px;height:40px;border-radius:10px;
  border:1px solid var(--line);background:transparent;color:var(--text);
  font-size:16px;cursor:pointer;
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--radius);
  font-size:15px;font-weight:700;font-family:inherit;
  border:1px solid transparent;cursor:pointer;
  transition:transform .18s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn-primary{
  background:linear-gradient(130deg,var(--primary),var(--primary-2));
  color:#032420;
  box-shadow:0 12px 30px rgba(53,224,192,.26);
}
.btn-primary:hover{
  color:#032420;
  filter:brightness(1.06);
  transform:translateY(-1px);
  box-shadow:0 16px 38px rgba(53,224,192,.4);
}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{
  background:rgba(255,255,255,.03);
  border-color:var(--line-strong);
  color:var(--text);
}
.btn-ghost:hover{
  color:#d9fff7;
  border-color:var(--primary);
  background:rgba(53,224,192,.1);
  transform:translateY(-1px);
}
.btn-block{width:100%;}
.btn-sm{height:40px;padding:0 16px;font-size:14px;}

/* ============ HERO ============ */
.hero{
  position:relative;
  padding:52px 0 56px;
  min-height:290px;
  overflow:hidden;
  border-bottom:1px solid var(--line);
  isolation:isolate;
}
.hero::before{
  content:"";position:absolute;inset:0;z-index:-2;
  background-image:linear-gradient(115deg,rgba(6,11,22,.94) 22%,rgba(8,18,33,.78) 58%,rgba(10,20,36,.9)),url(/assets/images/backpic/back-2.png);
  background-size:cover;
  background-position:center 35%;
  opacity:.95;
}
.hero::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background-image:
    radial-gradient(circle at 78% 20%, rgba(53,224,192,.14), transparent 46%),
    repeating-linear-gradient(90deg, rgba(110,231,255,.055) 0 1px, transparent 1px 74px);
  pointer-events:none;
}
.hero-grid{
  display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,.8fr);
  gap:44px;align-items:center;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:700;letter-spacing:.16em;
  color:var(--primary);text-transform:uppercase;
  margin-bottom:16px;
  padding:6px 14px;border-radius:999px;
  background:rgba(53,224,192,.1);
  border:1px solid var(--line);
}
.hero h1{margin-bottom:16px;max-width:18em;}
.hero h1 em{
  font-style:normal;
  background:linear-gradient(120deg,var(--primary),var(--primary-2));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.lead{font-size:16.5px;color:#c6d8e8;max-width:34em;margin-bottom:26px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
.quick-card{
  background:var(--surface-glass);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:8px;
  box-shadow:var(--shadow),inset 0 0 0 1px rgba(255,255,255,.03);
  backdrop-filter:blur(12px);
}
.quick-card h2{
  font-size:13px;letter-spacing:.14em;color:var(--muted);
  font-weight:700;margin:14px 14px 10px;text-transform:uppercase;
}
.quick-list{list-style:none;margin:0;padding:0 6px 8px;}
.quick-list a{
  display:flex;align-items:center;gap:12px;
  padding:11px 12px;border-radius:var(--radius-sm);
  color:#dbe9f6;font-size:14.5px;
  transition:background .2s var(--ease),transform .2s var(--ease),color .2s var(--ease);
}
.quick-list a i{color:var(--primary);font-size:13px;width:16px;text-align:center;}
.quick-list a:hover{background:rgba(53,224,192,.1);color:#fff;transform:translateX(3px);}
.quick-list a .arrow{margin-left:auto;color:var(--muted);font-size:12px;}

/* ============ 板块 ============ */
.section{padding:76px 0;}
.section-tight{padding:56px 0 24px;}
.section-head{max-width:760px;margin-bottom:38px;}
.section-head h2{margin-bottom:12px;}
.section-head p{color:var(--muted);margin:0;font-size:15.5px;}

/* 阶段步骤条 */
.stage-track{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:20px;position:relative;
}
.stage-track::before{
  content:"";position:absolute;left:8px;right:8px;top:26px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(53,224,192,.45),rgba(43,182,232,.35),transparent);
  z-index:0;
}
.stage-card{
  position:relative;z-index:1;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:24px 22px;
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.stage-card:nth-child(even){transform:translateY(20px);}
.stage-card:hover{
  border-color:var(--line-strong);
  box-shadow:var(--shadow-soft);
  transform:translateY(-2px);
}
.stage-card:nth-child(even):hover{transform:translateY(16px);}
.stage-num{
  display:inline-grid;place-items:center;
  width:44px;height:44px;border-radius:12px;
  font-family:"DIN Alternate","Bahnschrift","Consolas",monospace;
  font-size:18px;font-weight:700;
  color:#04241f;
  background:linear-gradient(140deg,var(--primary),var(--primary-2));
  margin-bottom:16px;
  box-shadow:0 10px 24px rgba(53,224,192,.24);
}
.stage-card h3{font-size:18px;margin-bottom:8px;}
.stage-card p{font-size:14px;color:var(--muted);margin:0;line-height:1.72;}

/* ============ 正文网格 ============ */
.guide-grid{
  display:grid;
  grid-template-columns:minmax(0,2fr) minmax(0,1fr);
  gap:48px;
  align-items:start;
}
.article-body{min-width:0;}
.article-body h2{
  margin-top:52px;margin-bottom:18px;
  padding-left:16px;position:relative;
}
.article-body h2:first-child{margin-top:0;}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:3px;border-radius:3px;
  background:linear-gradient(180deg,var(--primary),var(--primary-2));
}
.article-body h3{
  margin-top:30px;margin-bottom:10px;color:#dff3ff;
}
.article-body p{color:#c2d4e4;font-size:16px;}
.article-body ul,.article-body ol{color:#c2d4e4;}
.article-body li{margin-bottom:.5em;}
.number-list{
  list-style:none;padding:0;margin:22px 0 26px;
  counter-reset:guide;
}
.number-list li{
  counter-increment:guide;
  position:relative;
  padding:16px 20px 16px 58px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  margin-bottom:12px;
  font-size:15px;color:#cbdcf0;
  transition:border-color .2s var(--ease),transform .2s var(--ease);
}
.number-list li:hover{border-color:var(--line-strong);transform:translateX(2px);}
.number-list li::before{
  content:counter(guide,decimal-leading-zero);
  position:absolute;left:18px;top:16px;
  font-family:"DIN Alternate","Bahnschrift","Consolas",monospace;
  font-size:15px;font-weight:700;color:var(--primary);
}
.number-list li strong{display:block;margin-bottom:2px;color:#eef9ff;}

.callout{
  display:flex;gap:14px;
  margin:26px 0;
  padding:18px 20px;
  border-radius:var(--radius);
  background:rgba(255,157,77,.07);
  border:1px solid rgba(255,157,77,.28);
  border-left:3px solid var(--accent);
  color:#f3ddc6;font-size:14.5px;line-height:1.72;
}
.callout i{color:var(--accent);font-size:16px;margin-top:3px;flex:0 0 auto;}
.callout p{margin:0;color:inherit;font-size:14.5px;}

.figure{
  margin:28px 0 8px;
  border-radius:16px;overflow:hidden;
  border:1px solid var(--line);
  background:var(--surface);
  box-shadow:var(--shadow-soft);
}
.figure-media{position:relative;}
.figure-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,11,22,.06),rgba(6,11,22,.42));
  pointer-events:none;
}
.figure img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.figure figcaption{
  padding:12px 18px;font-size:13px;color:var(--muted);
  border-top:1px solid var(--line);
  background:rgba(6,11,22,.5);
}

/* ============ 侧栏 ============ */
.side-col{display:flex;flex-direction:column;gap:20px;position:sticky;top:28px;}
.side-card{
  background:var(--surface-glass);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:22px;
  backdrop-filter:blur(12px);
  box-shadow:var(--shadow-soft);
}
.side-card h3{
  font-size:13px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--muted);font-weight:700;margin-bottom:14px;
}
.toc{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px;}
.toc a{
  display:flex;align-items:center;gap:10px;
  padding:9px 10px;border-radius:var(--radius-sm);
  font-size:14px;color:#b9cddd;
  transition:background .2s var(--ease),color .2s var(--ease),padding-left .2s var(--ease);
}
.toc a::before{
  content:"";width:6px;height:6px;border-radius:50%;
  background:rgba(110,231,255,.35);flex:0 0 auto;transition:background .2s var(--ease);
}
.toc a:hover{background:rgba(53,224,192,.1);color:#fff;padding-left:14px;}
.toc a:hover::before{background:var(--primary);}
.contact-form{display:flex;flex-direction:column;gap:12px;}
.field label{display:block;font-size:12.5px;color:var(--muted);margin-bottom:6px;letter-spacing:.04em;}
.field input,.field select,.field textarea{
  width:100%;
  min-height:48px;
  padding:12px 14px;
  border-radius:var(--radius);
  background:rgba(6,11,22,.72);
  border:1px solid var(--line);
  color:var(--text);
  font-family:inherit;font-size:14px;line-height:1.5;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
  appearance:none;
}
.field textarea{min-height:92px;resize:vertical;}
.field input::placeholder,.field textarea::placeholder{color:#6d8299;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;
  border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(53,224,192,.18);
}
.form-note{font-size:12.5px;color:var(--muted);line-height:1.6;margin:0;}
.form-feedback{
  display:none;font-size:13px;color:#9ff5e2;
  padding:10px 12px;border-radius:var(--radius-sm);
  background:rgba(53,224,192,.1);
  border-left:3px solid var(--primary);
}
.form-feedback.is-visible{display:block;}
.mobile-toc{display:none;}

/* ============ FAQ ============ */
.faq{display:flex;flex-direction:column;gap:12px;max-width:920px;}
.faq-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:0;
  transition:border-color .2s var(--ease),background .2s var(--ease),box-shadow .2s var(--ease);
}
.faq-item:hover{border-color:var(--line-strong);background:#112239;}
.faq-item summary{
  list-style:none;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:16px 22px;
  font-size:16px;font-weight:700;color:#e8f5ff;
  cursor:pointer;
  transition:color .2s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::marker{content:"";}
.faq-item summary i{color:var(--primary);font-size:13px;transition:transform .25s var(--ease);flex:0 0 auto;}
.faq-item[open]{
  border-color:var(--line-strong);
  box-shadow:inset 3px 0 0 var(--primary),var(--shadow-soft);
  background:#112239;
}
.faq-item[open] summary i{transform:rotate(180deg);}
.faq-answer{padding:0 22px 20px;color:#bccfe0;font-size:15px;line-height:1.8;}
.faq-answer p{margin:0;color:inherit;}

/* ============ CTA ============ */
.cta-band{
  position:relative;
  border-radius:calc(var(--radius-lg) + 4px);
  overflow:hidden;
  border:1px solid var(--line-strong);
  background:var(--surface-glass);
  backdrop-filter:blur(14px);
  box-shadow:var(--shadow);
  padding:48px 44px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  isolation:isolate;
}
.cta-band::before{
  content:"";position:absolute;inset:0;z-index:-1;
  background-image:linear-gradient(115deg,rgba(10,20,36,.92),rgba(12,30,52,.82)),url(/assets/images/backpic/back-3.webp);
  background-size:cover;background-position:center;
  opacity:.7;
}
.cta-band h2{margin-bottom:10px;font-size:clamp(22px,2.4vw,30px);}
.cta-band p{margin:0;color:#c1d5e6;font-size:15px;max-width:44em;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;flex:0 0 auto;}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:auto;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(8,16,29,.96),rgba(4,8,16,1));
  padding:56px 0 26px;
  position:relative;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(53,224,192,.5),transparent);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:36px;
  padding-bottom:36px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:13.5px;color:var(--muted);line-height:1.75;max-width:30em;margin:0;}
.footer-col h4{
  font-size:13px;letter-spacing:.12em;text-transform:uppercase;
  color:#8fb0c9;margin-bottom:14px;font-weight:700;
}
.footer-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:9px;}
.footer-col li{font-size:13.5px;color:var(--muted);line-height:1.65;}
.footer-col a{color:#a9c1d4;font-size:13.5px;transition:color .2s var(--ease),padding-left .2s var(--ease);}
.footer-col a:hover{color:var(--primary);padding-left:3px;}
.footer-bottom{
  border-top:1px solid rgba(110,231,255,.12);
  padding-top:20px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12.5px;color:#74899e;
}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .sidebar{width:84px;padding:22px 12px;align-items:center;gap:18px;}
  .nav-label,.brand-text,.sidebar-cta{display:none;}
  .nav{width:100%;align-items:center;}
  .nav-item{justify-content:center;padding:0;width:48px;height:48px;}
  .nav-item i{font-size:17px;width:auto;}
  .sidebar:hover{width:var(--sidebar-w);align-items:stretch;box-shadow:var(--shadow);}
  .sidebar:hover .nav-label,
  .sidebar:hover .brand-text,
  .sidebar:hover .sidebar-cta{display:block;}
  .sidebar:hover .nav-item{justify-content:flex-start;padding:0 14px;width:100%;height:44px;}
  .sidebar:hover .nav-item i{width:20px;}
  .sidebar:hover .brand{justify-content:flex-start;}
  .app-main{margin-left:84px;width:calc(100% - 84px);}
  .container{padding:0 28px;}
  .guide-grid{gap:32px;}
}
@media (max-width:1023px){
  .hero-grid{grid-template-columns:1fr;gap:30px;}
  .stage-track{grid-template-columns:repeat(2,minmax(0,1fr));}
  .stage-card:nth-child(even){transform:none;}
  .stage-card:nth-child(even):hover{transform:translateY(-2px);}
  .guide-grid{grid-template-columns:1fr;}
  .side-col{position:static;}
  .mobile-toc{
    display:block;margin-bottom:28px;
    border:1px solid var(--line);border-radius:var(--radius-lg);
    background:var(--surface-glass);padding:18px 20px;
  }
  .mobile-toc summary{
    cursor:pointer;font-size:15px;font-weight:700;color:#e8f5ff;
    display:flex;align-items:center;justify-content:space-between;
    list-style:none;
  }
  .mobile-toc summary::-webkit-details-marker{display:none;}
  .mobile-toc .toc{margin-top:14px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px 28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
}
@media (max-width:767px){
  .sidebar{display:none;}
  .topbar{display:flex;}
  .app-main{margin-left:0;width:100%;}
  .container{padding:0 18px;}
  .hero{padding:36px 0 40px;min-height:260px;}
  .hero h1{font-size:clamp(26px,7vw,32px);}
  .lead{font-size:15px;}
  .section{padding:48px 0;}
  .section-tight{padding:38px 0 12px;}
  .section-head{margin-bottom:26px;}
  .stage-track{grid-template-columns:1fr;gap:14px;}
  .stage-track::before{display:none;}
  .hero-actions .btn{width:100%;}
  .article-body h2{margin-top:40px;padding-left:14px;}
  .faq-item summary{font-size:15px;padding:14px 18px;min-height:50px;}
  .faq-answer{padding:0 18px 18px;font-size:14.5px;}
  .cta-band{padding:30px 20px;border-radius:var(--radius-lg);}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding-bottom:26px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media (max-width:519px){
  body{font-size:15.5px;}
  .quick-list a{font-size:14px;}
  .number-list li{padding:14px 16px 14px 50px;}
  .number-list li::before{left:14px;font-size:14px;}
  .figure figcaption{font-size:12.5px;}
}