/* roulang page: index */
:root{
  --bg-0:#0A0F0D;
  --bg-1:#101816;
  --bg-2:#16211E;
  --bg-3:#1E2B27;
  --brand:#A8E63A;
  --accent:#FF4D8D;
  --warn:#FFB020;
  --info:#4EC9E0;
  --text-1:#EAF2EC;
  --text-2:#A9B8B0;
  --text-3:#74847C;
  --line:rgba(255,255,255,.07);
  --line-soft:rgba(255,255,255,.06);
  --line-brand:rgba(168,230,58,.35);
  --r-s:6px;
  --r-m:10px;
  --r-l:14px;
  --r-pill:999px;
  --shadow-card:0 1px 0 rgba(255,255,255,.04) inset,0 10px 30px rgba(0,0,0,.45);
  --shadow-brand:0 8px 22px rgba(168,230,58,.26);
  --mono:ui-monospace,"DIN Alternate","SF Mono",Menlo,Consolas,monospace;
  --ease:200ms ease-out;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-1);
  font-family:system-ui,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
body.drawer-open{overflow:hidden}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
::selection{background:var(--brand);color:#0A0F0D}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:var(--bg-1)}
::-webkit-scrollbar-thumb{background:#2a3a34;border-radius:999px}
::-webkit-scrollbar-thumb:hover{background:#3a4d46}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:96px 0}
.section-tight{padding:72px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px}
.section-head h2{font-size:clamp(24px,2.6vw,34px);line-height:1.25;font-weight:700;letter-spacing:-.2px}
.section-head .lead{color:var(--text-2);font-size:15px;margin-top:10px;max-width:620px}
.kicker{font-size:13px;letter-spacing:.06em;color:var(--brand);margin-bottom:12px;display:block}
.link-more{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-size:15px;font-weight:500;white-space:nowrap;transition:gap var(--ease)}
.link-more:hover{gap:10px}
.link-more svg{width:16px;height:16px}

/* ===== 顶部导航 ===== */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(10,15,13,.92);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(0,0,0,.5)}
.nav{display:flex;align-items:center;gap:28px;height:64px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:30px;height:30px;border-radius:9px;
  background:var(--bg-2);border:1px solid var(--line-brand);
  display:flex;align-items:center;justify-content:center;
  color:var(--brand);font-weight:800;font-size:15px;line-height:1;
  box-shadow:0 0 0 3px rgba(168,230,58,.08);
}
.brand-text{font-size:16px;font-weight:700;letter-spacing:-.2px;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:4px;flex:1;min-width:0}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:64px;
  padding:0 14px;font-size:15px;font-weight:500;color:var(--text-2);
  transition:color var(--ease);white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:14px;height:2px;
  border-radius:var(--r-pill);background:var(--brand);transform:scaleX(0);
  transform-origin:left;transition:transform var(--ease);
}
.nav-link:hover{color:var(--text-1)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:var(--text-1)}
.nav-link.active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:14px;flex-shrink:0}
.search-box{
  position:relative;display:flex;align-items:center;width:216px;height:38px;
  background:var(--bg-3);border:1px solid var(--line);border-radius:var(--r-pill);
  transition:border-color var(--ease),box-shadow var(--ease);
}
.search-box svg{width:16px;height:16px;margin:0 8px 0 14px;color:var(--text-3);flex-shrink:0}
.search-box input{width:100%;height:100%;background:transparent;border:0;outline:none;font-size:14px;color:var(--text-1)}
.search-box input::placeholder{color:var(--text-3)}
.search-box:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(168,230,58,.18)}
.login-link{font-size:15px;color:var(--text-2);transition:color var(--ease);padding:8px 2px}
.login-link:hover{color:var(--text-1)}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-m);border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),border-color var(--ease),color var(--ease),filter var(--ease);
}
.btn svg{width:16px;height:16px}
.btn-primary{background:var(--brand);color:#0A0F0D;box-shadow:var(--shadow-brand)}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 12px 26px rgba(168,230,58,.34)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;color:var(--text-1);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--line-brand);color:var(--brand)}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:var(--r-pill)}
.btn-lg{height:48px;padding:0 26px}
.btn:disabled,.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}

.hamburger{
  display:none;width:44px;height:44px;border-radius:var(--r-m);background:var(--bg-2);
  border:1px solid var(--line);align-items:center;justify-content:center;cursor:pointer;
}
.hamburger span{display:block;width:18px;height:2px;background:var(--text-1);border-radius:2px;position:relative;transition:background var(--ease)}
.hamburger span::before,.hamburger span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text-1);border-radius:2px;
  transition:transform var(--ease);
}
.hamburger span::before{top:-6px}
.hamburger span::after{top:6px}
.hamburger.is-open span{background:transparent}
.hamburger.is-open span::before{transform:translateY(6px) rotate(45deg)}
.hamburger.is-open span::after{transform:translateY(-6px) rotate(-45deg)}

.drawer{
  position:fixed;inset:0;z-index:80;background:var(--bg-1);
  display:flex;flex-direction:column;padding:20px 20px 24px;
  transform:translateY(-100%);opacity:0;visibility:hidden;
  transition:transform .28s ease,opacity .28s ease,visibility .28s;
}
.drawer.is-open{transform:translateY(0);opacity:1;visibility:visible}
.drawer-head{display:flex;align-items:center;justify-content:space-between;height:56px;border-bottom:1px solid var(--line)}
.drawer-close{width:44px;height:44px;border-radius:var(--r-m);background:var(--bg-2);border:1px solid var(--line);color:var(--text-1);cursor:pointer;font-size:20px;line-height:1}
.drawer-links{flex:1;overflow-y:auto;padding:8px 0}
.drawer-links a{display:flex;align-items:center;justify-content:space-between;min-height:56px;font-size:18px;color:var(--text-1);border-bottom:1px solid var(--line-soft)}
.drawer-links a span{color:var(--text-3);font-size:13px}
.drawer-foot{display:grid;gap:12px;padding-top:16px;border-top:1px solid var(--line)}
.drawer-foot .search-box{width:100%}
.drawer-foot .btn{width:100%}

/* ===== Hero ===== */
.hero{position:relative;overflow:hidden;padding:88px 0 96px;isolation:isolate}
.hero-bg{
  position:absolute;inset:0;z-index:-2;
  background-image:linear-gradient(180deg,rgba(10,15,13,.72),rgba(10,15,13,.88) 60%,var(--bg-0)),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
}
.hero-grid-lines{
  position:absolute;inset:0;z-index:-1;opacity:.5;
  background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 85%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 85%);
}
.hero-shape{
  position:absolute;top:-60px;right:-120px;width:520px;height:420px;z-index:-1;
  background:rgba(168,230,58,.08);
  clip-path:polygon(28% 0,100% 0,100% 100%,0 82%);
  filter:blur(2px);
}
.hero-grid{display:grid;grid-template-columns:55fr 45fr;gap:56px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:32px;padding:0 14px;
  border-radius:var(--r-pill);background:rgba(168,230,58,.12);
  border:1px solid var(--line-brand);color:var(--brand);
  font-size:12px;letter-spacing:.06em;margin-bottom:22px;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--brand);box-shadow:0 0 0 3px rgba(168,230,58,.2)}
.hero h1{
  font-size:clamp(30px,4.4vw,52px);line-height:1.15;font-weight:800;letter-spacing:-.5px;
  margin-bottom:20px;
}
.hero h1 em{font-style:normal;color:var(--brand)}
.hero-sub{font-size:17px;line-height:1.85;color:var(--text-2);max-width:560px;margin-bottom:30px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px}
.hero-tags li{
  display:inline-flex;align-items:center;gap:8px;height:32px;padding:0 14px;
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-pill);
  font-size:13px;color:var(--text-2);
}
.hero-tags li::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--brand);opacity:.8}
.hero-tags li b{font-family:var(--mono);color:var(--text-1);font-weight:600}
.hero-visual{position:relative}
.hero-shot{
  border-radius:var(--r-l);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--shadow-card);aspect-ratio:16/11;background:var(--bg-1);
}
.hero-shot img{width:100%;height:100%;object-fit:cover}
.float-card{
  position:absolute;left:-26px;bottom:-26px;display:flex;align-items:center;gap:12px;
  padding:12px 16px 12px 12px;background:var(--bg-2);border:1px solid var(--line-brand);
  border-radius:var(--r-l);box-shadow:var(--shadow-card);max-width:290px;
  animation:floatY 5s ease-in-out infinite;
}
@keyframes floatY{0%,100%{transform:translateY(0)}50%{transform:translateY(-6px)}}
.float-card img{width:56px;height:56px;border-radius:var(--r-m);object-fit:cover;flex-shrink:0}
.float-card strong{display:block;font-size:14px;font-weight:600;line-height:1.4}
.float-card span{display:block;font-size:12px;color:var(--text-3);margin-top:2px}
.float-card::after{
  content:"新";position:absolute;top:-10px;right:-10px;width:26px;height:26px;border-radius:50%;
  background:var(--brand);color:#0A0F0D;font-size:12px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
}

/* ===== 卖点三连 ===== */
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.feature-card{
  position:relative;background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-l);
  padding:22px;box-shadow:var(--shadow-card);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.feature-card:hover{transform:translateY(-2px);border-color:var(--line-brand);box-shadow:0 1px 0 rgba(255,255,255,.05) inset,0 16px 38px rgba(0,0,0,.55)}
.feature-icon{
  width:40px;height:40px;border-radius:var(--r-m);display:flex;align-items:center;justify-content:center;
  margin-bottom:16px;border:1px solid transparent;
}
.feature-icon svg{width:20px;height:20px}
.icon-brand{background:rgba(168,230,58,.14);border-color:rgba(168,230,58,.3);color:var(--brand)}
.icon-accent{background:rgba(255,77,141,.14);border-color:rgba(255,77,141,.3);color:var(--accent)}
.icon-warn{background:rgba(255,176,32,.14);border-color:rgba(255,176,32,.3);color:var(--warn)}
.icon-info{background:rgba(78,201,224,.14);border-color:rgba(78,201,224,.3);color:var(--info)}
.feature-card h3{font-size:20px;line-height:1.4;font-weight:600;margin-bottom:10px}
.feature-card p{font-size:14px;color:var(--text-2);line-height:1.85;margin-bottom:16px}

/* ===== 场景演示 ===== */
.scene{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.scene-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.tabs{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px}
.tab{
  height:38px;padding:0 18px;border-radius:var(--r-pill);background:var(--bg-3);
  border:1px solid var(--line);color:var(--text-2);font-size:14px;cursor:pointer;
  transition:background var(--ease),color var(--ease),border-color var(--ease);
}
.tab:hover{color:var(--text-1);border-color:var(--line-brand)}
.tab.active{background:var(--brand);color:#0A0F0D;border-color:var(--brand);font-weight:600}
.tab-panel{display:none}
.tab-panel.active{display:block;animation:fadeUp .28s ease}
@keyframes fadeUp{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}
.tab-panel h3{font-size:20px;font-weight:600;line-height:1.4;margin-bottom:12px}
.tab-panel p{font-size:15px;color:var(--text-2);line-height:1.9;margin-bottom:18px}
.scene-visual{
  position:relative;border-radius:var(--r-l);overflow:hidden;border:1px solid var(--line);
  aspect-ratio:16/9;background:var(--bg-2);box-shadow:var(--shadow-card);
}
.scene-visual img{width:100%;height:100%;object-fit:cover}
.scene-visual::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(180deg,rgba(255,255,255,.045) 0 1px,transparent 1px 4px);
}
.scene-badge{
  position:absolute;left:16px;top:16px;z-index:2;height:28px;padding:0 12px;border-radius:var(--r-pill);
  background:rgba(10,15,13,.78);border:1px solid var(--line-brand);color:var(--brand);
  font-size:12px;letter-spacing:.06em;display:inline-flex;align-items:center;
}

/* ===== 最新信息 ===== */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.post-card{
  display:flex;flex-direction:column;background:var(--bg-2);border:1px solid var(--line);
  border-radius:var(--r-l);overflow:hidden;box-shadow:var(--shadow-card);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.post-card:hover{transform:translateY(-2px);border-color:var(--line-brand);box-shadow:0 1px 0 rgba(255,255,255,.05) inset,0 16px 38px rgba(0,0,0,.55)}
.post-cover{aspect-ratio:16/9;background:var(--bg-1);overflow:hidden}
.post-cover img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.post-card:hover .post-cover img{transform:scale(1.04)}
.post-body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1}
.post-meta{display:flex;align-items:center;gap:10px;margin-bottom:12px;flex-wrap:wrap}
.post-title{
  font-size:17px;font-weight:600;line-height:1.55;margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-excerpt{
  font-size:14px;color:var(--text-2);line-height:1.75;margin-bottom:16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:14px;border-top:1px solid var(--line-soft)}
.post-time{font-size:13px;color:var(--text-3);font-family:var(--mono);font-variant-numeric:tabular-nums}
.read-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--brand);font-weight:500;transition:gap var(--ease)}
.post-card:hover .read-link{gap:10px}
.read-link svg{width:14px;height:14px}
.empty-state{
  grid-column:1/-1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  padding:56px 24px;background:var(--bg-1);border:1px dashed var(--line);border-radius:var(--r-l);text-align:center;
}
.empty-state svg{width:34px;height:34px;color:var(--text-3)}
.empty-state p{color:var(--text-2);font-size:15px}

/* ===== 社会认同 ===== */
.social{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-bottom:56px}
.stat{padding:0 22px;position:relative}
.stat+.stat::before{content:"";position:absolute;left:0;top:8px;bottom:8px;width:1px;background:var(--line)}
.stat b{display:block;font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:clamp(28px,3.2vw,40px);font-weight:700;color:var(--brand);line-height:1.1;letter-spacing:-1px}
.stat span{display:block;font-size:13px;color:var(--text-2);margin-top:8px}
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-bottom:48px}
.review-card{background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-l);padding:20px;box-shadow:var(--shadow-card);transition:transform var(--ease),border-color var(--ease)}
.review-card:hover{transform:translateY(-2px);border-color:var(--line-brand)}
.review-head{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.avatar{width:40px;height:40px;border-radius:50%;background:var(--bg-3);border:1px solid var(--line-brand);display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:600;color:var(--brand);flex-shrink:0}
.review-head strong{display:block;font-size:15px;font-weight:600}
.review-head em{display:block;font-style:normal;font-size:12px;color:var(--text-3);margin-top:2px}
.review-card p{font-size:14px;color:var(--text-2);line-height:1.85;margin-bottom:14px}
.stars{display:inline-flex;gap:3px;color:var(--warn);font-size:13px;letter-spacing:2px}
.logo-strip{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;
  padding-top:32px;border-top:1px solid var(--line);
}
.logo-strip span{
  font-size:15px;font-weight:600;letter-spacing:.04em;color:var(--text-2);opacity:.4;
  transition:opacity var(--ease),color var(--ease);
}
.logo-strip span:hover{opacity:1;color:var(--text-1)}

/* ===== FAQ ===== */
.faq{max-width:860px;margin:0 auto}
.faq details{
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-l);
  margin-bottom:14px;overflow:hidden;transition:border-color var(--ease);
}
.faq details[open]{border-color:var(--line-brand)}
.faq summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;font-size:16px;font-weight:600;cursor:pointer;list-style:none;min-height:56px;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary svg{width:18px;height:18px;color:var(--brand);flex-shrink:0;transition:transform .25s ease}
.faq details[open] summary svg{transform:rotate(180deg)}
.faq .answer{padding:0 22px 20px;font-size:15px;line-height:1.9;color:var(--text-2)}

/* ===== CTA ===== */
.cta-band{position:relative;overflow:hidden;background:var(--bg-1);border-top:1px solid var(--line)}
.cta-band::before{
  content:"";position:absolute;left:-140px;top:-40px;width:420px;height:340px;
  background:rgba(168,230,58,.1);clip-path:polygon(0 0,78% 0,100% 100%,0 86%);
}
.cta-inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:36px;padding:72px 0}
.cta-inner h2{font-size:clamp(24px,2.6vw,34px);line-height:1.25;font-weight:700;margin-bottom:12px}
.cta-inner p{color:var(--text-2);font-size:16px;max-width:560px}
.cta-actions{display:flex;gap:14px;flex-shrink:0;flex-wrap:wrap}

/* ===== 页脚 ===== */
.site-footer{background:var(--bg-0);border-top:1px solid var(--line);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px;padding-bottom:48px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:14px;color:var(--text-2);line-height:1.85;max-width:340px}
.footer-col h4{font-size:14px;font-weight:600;color:var(--text-1);margin-bottom:16px;letter-spacing:.02em}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14px;color:var(--text-2);transition:color var(--ease)}
.footer-col a:hover{color:var(--brand)}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:20px 0;border-top:1px solid var(--line);font-size:13px;color:var(--text-3);
}

/* ===== 底部转化条 ===== */
.sticky-bar{
  position:fixed;right:24px;bottom:24px;z-index:70;
  display:flex;align-items:center;gap:14px;
  padding:10px 10px 10px 20px;border-radius:var(--r-pill);
  background:rgba(16,24,22,.96);border:1px solid var(--line-brand);
  box-shadow:0 14px 34px rgba(0,0,0,.55);backdrop-filter:blur(8px);
}
.sticky-bar p{font-size:14px;color:var(--text-2);white-space:nowrap}
.sticky-bar .bar-close{display:none}
.sticky-bar.is-hidden{display:none}

@media (max-width:1080px){
  .nav-links{gap:0}
  .nav-link{padding:0 10px;font-size:14px}
  .search-box{width:180px}
  .brand-text{font-size:15px}
}
@media (max-width:1024px){
  .container{padding:0 24px}
  .section{padding:72px 0}
  .hero{padding:64px 0 72px}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-shot{aspect-ratio:16/9}
  .feature-grid{grid-template-columns:repeat(2,1fr)}
  .post-grid{grid-template-columns:repeat(2,1fr)}
  .scene-grid{grid-template-columns:1fr;gap:32px}
  .stats{grid-template-columns:repeat(2,1fr);gap:28px 0}
  .stat:nth-child(3)::before{display:none}
  .review-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .cta-inner{flex-direction:column;align-items:flex-start;padding:56px 0;gap:24px}
}
@media (max-width:900px){
  .nav-links{display:none}
  .search-box{display:none}
  .login-link{display:none}
  .hamburger{display:flex}
  .nav{height:56px;justify-content:space-between;gap:12px}
  .nav-actions .btn{display:none}
}
@media (max-width:767px){
  body{padding-bottom:60px}
  .container{padding:0 16px}
  .section{padding:52px 0}
  .hero{padding:44px 0 56px}
  .hero h1{font-size:clamp(28px,8vw,34px)}
  .hero-sub{font-size:15px}
  .hero-cta{flex-direction:column;align-items:stretch}
  .hero-cta .btn{width:100%}
  .hero-shape{display:none}
  .float-card{left:12px;bottom:-20px;max-width:250px}
  .feature-grid{grid-template-columns:1fr}
  .post-grid{grid-template-columns:1fr;gap:20px}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:26px}
  .stats{grid-template-columns:1fr 1fr;gap:26px 0;margin-bottom:40px}
  .stat{padding:0 14px}
  .stat:nth-child(odd)::before{display:none}
  .review-grid{grid-template-columns:1fr}
  .logo-strip{justify-content:flex-start;gap:18px}
  .cta-inner{padding:48px 0}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding-bottom:32px}
  .sticky-bar{
    left:0;right:0;bottom:0;border-radius:0;border-left:0;border-right:0;border-bottom:0;
    padding:10px 14px;gap:10px;justify-content:space-between;
  }
  .sticky-bar p{font-size:13px;white-space:normal;line-height:1.4}
  .sticky-bar .btn{height:40px;padding:0 16px;font-size:14px}
  .sticky-bar .bar-close{display:flex;width:34px;height:34px;align-items:center;justify-content:center;background:transparent;border:0;color:var(--text-3);font-size:18px;cursor:pointer;flex-shrink:0}
}
@media (max-width:520px){
  .stats{grid-template-columns:1fr}
  .stat+.stat::before{display:none}
}

.badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-pill);font-size:12px;letter-spacing:.06em;border:1px solid transparent}
.badge-brand{background:rgba(168,230,58,.14);color:var(--brand);border-color:rgba(168,230,58,.3)}

/* roulang page: article */
:root{
  --bg-0:#0A0F0D;
  --bg-1:#101816;
  --bg-2:#16211E;
  --bg-3:#1E2B27;
  --brand:#A8E63A;
  --accent:#FF4D8D;
  --warn:#FFB020;
  --info:#4EC9E0;
  --text-1:#EAF2EC;
  --text-2:#A9B8B0;
  --text-3:#74847C;
  --line:rgba(255,255,255,.07);
  --line-brand:rgba(168,230,58,.35);
  --r-s:6px;
  --r-m:10px;
  --r-l:14px;
  --r-pill:999px;
  --shadow-card:0 1px 0 rgba(255,255,255,.04) inset, 0 10px 30px rgba(0,0,0,.45);
  --shadow-brand:0 8px 22px rgba(168,230,58,.26);
  --font-num:ui-monospace,"DIN Alternate","SFMono-Regular",monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-1);
  font-family:system-ui,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button,input{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
::selection{background:var(--brand);color:#0A0F0D;}
::-webkit-scrollbar{width:10px;height:10px;}
::-webkit-scrollbar-track{background:var(--bg-0);}
::-webkit-scrollbar-thumb{background:var(--bg-3);border-radius:999px;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
@media (max-width:1023px){.container{padding:0 24px;}}
@media (max-width:767px){.container{padding:0 16px;}}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(10,15,13,.92);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(0,0,0,.5);}
.nav{display:flex;align-items:center;gap:22px;height:64px;}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:16px;letter-spacing:.01em;white-space:nowrap;}
.brand-mark{
  width:26px;height:26px;flex:none;display:grid;place-items:center;
  border:1px solid var(--line-brand);border-radius:8px;
  background:var(--bg-2);color:var(--brand);
  font-size:13px;font-weight:800;line-height:1;
}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:6px;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  padding:10px 12px;font-size:15px;font-weight:500;color:var(--text-2);
  border-radius:var(--r-s);transition:color .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  border-radius:999px;background:var(--brand);
  transform:scaleX(0);transform-origin:center;transition:transform .2s ease;
}
.nav-link:hover{color:var(--text-1);}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1);}
.nav-link.active{color:var(--text-1);}
.nav-actions{display:flex;align-items:center;gap:14px;margin-left:auto;}
.search-box{
  display:flex;align-items:center;gap:8px;width:220px;height:38px;padding:0 14px;
  background:var(--bg-3);border:1px solid var(--line);border-radius:var(--r-pill);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.search-box svg{width:16px;height:16px;flex:none;color:var(--text-3);}
.search-box input{width:100%;border:0;background:transparent;outline:none;font-size:14px;}
.search-box input::placeholder{color:var(--text-3);}
.search-box:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(168,230,58,.18);}
.login-link{font-size:15px;color:var(--text-2);transition:color .2s ease;}
.login-link:hover{color:var(--text-1);}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease-out,box-shadow .18s ease,background .18s ease,border-color .18s ease,color .18s ease,filter .18s ease;
}
.btn svg{width:18px;height:18px;flex:none;}
.btn-primary{background:var(--brand);color:#0A0F0D;box-shadow:var(--shadow-brand);}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 12px 28px rgba(168,230,58,.32);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text-1);}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{height:40px;padding:0 16px;font-size:14px;}
.btn[disabled]{opacity:.4;cursor:not-allowed;}

/* 汉堡与抽屉 */
.hamburger{
  display:none;position:relative;width:44px;height:42px;
  background:transparent;border:1px solid var(--line);border-radius:var(--r-m);cursor:pointer;
}
.hamburger span,.hamburger::before,.hamburger::after{
  content:"";position:absolute;left:50%;width:18px;height:2px;border-radius:2px;
  background:var(--text-1);transform:translateX(-50%);transition:transform .22s ease,opacity .22s ease,top .22s ease;
}
.hamburger span{top:50%;margin-top:-1px;}
.hamburger::before{top:calc(50% - 6px);}
.hamburger::after{top:calc(50% + 6px);}
.hamburger.is-active span{opacity:0;}
.hamburger.is-active::before{top:50%;margin-top:-1px;transform:translateX(-50%) rotate(45deg);}
.hamburger.is-active::after{top:50%;margin-top:-1px;transform:translateX(-50%) rotate(-45deg);}
.drawer{
  position:fixed;inset:0;z-index:80;display:flex;flex-direction:column;
  background:var(--bg-1);padding:16px;
  transform:translateY(-102%);visibility:hidden;
  transition:transform .28s ease,visibility .28s ease;
}
.drawer.is-open{transform:translateY(0);visibility:visible;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:6px 0 18px;border-bottom:1px solid var(--line);}
.drawer-nav{display:flex;flex-direction:column;padding:8px 0;flex:1;}
.drawer-nav a{
  display:flex;align-items:center;min-height:56px;font-size:18px;
  color:var(--text-2);border-bottom:1px solid var(--line);
}
.drawer-nav a.active,.drawer-nav a:hover{color:var(--brand);}
.drawer-foot{display:grid;gap:12px;padding-top:16px;border-top:1px solid var(--line);}
.drawer-close{
  width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-m);
  background:transparent;cursor:pointer;font-size:20px;line-height:1;color:var(--text-1);
}
body.drawer-open{overflow:hidden;}

/* ============ 文章头部 ============ */
.article-hero{
  position:relative;overflow:hidden;
  border-bottom:1px solid var(--line);
  background-color:var(--bg-1);
  background-image:linear-gradient(180deg,rgba(10,15,13,.72),rgba(10,15,13,.94)),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  padding:34px 0 40px;
}
.article-hero::after{
  content:"";position:absolute;top:-70px;right:-80px;width:320px;height:320px;
  background:linear-gradient(135deg,rgba(168,230,58,.12),rgba(168,230,58,0));
  transform:rotate(18deg);pointer-events:none;
}
.breadcrumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);margin-bottom:18px;position:relative;z-index:1;
}
.breadcrumb a{color:var(--text-2);transition:color .2s ease;}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:var(--text-3);}
.breadcrumb .current{color:var(--text-2);max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.article-title{
  margin:0 0 18px;max-width:900px;
  font-size:clamp(24px,3vw,36px);line-height:1.3;font-weight:800;letter-spacing:-.4px;
  position:relative;z-index:1;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.article-meta{
  display:flex;align-items:center;gap:12px;flex-wrap:wrap;
  font-size:13.5px;color:var(--text-3);position:relative;z-index:1;
}
.article-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--text-3);}
.article-meta .num{font-family:var(--font-num);font-variant-numeric:tabular-nums;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 11px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;letter-spacing:.06em;
}
.badge-brand{background:rgba(168,230,58,.14);color:var(--brand);border:1px solid rgba(168,230,58,.3);}
.badge-info{background:rgba(78,201,224,.14);color:var(--info);border:1px solid rgba(78,201,224,.3);}
.badge-accent{background:rgba(255,77,141,.14);color:var(--accent);border:1px solid rgba(255,77,141,.3);}
.badge-warn{background:rgba(255,176,32,.14);color:var(--warn);border:1px solid rgba(255,176,32,.3);}

/* ============ 布局 ============ */
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr);gap:40px;
  padding:36px 0 8px;
}
.article-main{max-width:760px;min-width:0;}
.article-side{display:none;}
@media (min-width:1200px){
  .article-layout{grid-template-columns:minmax(0,1fr) 300px;align-items:start;}
  .article-side{display:block;}
}

/* 封面 */
.article-cover{
  margin:0 0 32px;border:1px solid var(--line);border-radius:var(--r-l);
  overflow:hidden;background:var(--bg-1);
}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .5s ease;}
.article-cover:hover img{transform:scale(1.02);}

/* 正文 */
.article-body{font-size:17px;line-height:1.9;color:var(--text-1);}
.article-body>*:first-child{margin-top:0;}
.article-body p{margin:0 0 1.15em;}
.article-body h2{
  position:relative;margin:2em 0 .8em;padding-left:16px;
  font-size:clamp(20px,2vw,26px);line-height:1.35;font-weight:700;letter-spacing:-.2px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:3px;border-radius:2px;background:var(--brand);
}
.article-body h3{margin:1.6em 0 .6em;font-size:20px;line-height:1.4;font-weight:600;}
.article-body ul{margin:0 0 1.15em;}
.article-body ul>li{position:relative;padding-left:20px;margin:.4em 0;}
.article-body ul>li::before{
  content:"";position:absolute;left:2px;top:.72em;width:7px;height:7px;border-radius:2px;background:var(--brand);
}
.article-body ol{margin:0 0 1.15em;padding-left:1.4em;list-style:decimal;}
.article-body ol>li{margin:.4em 0;}
.article-body ol>li::marker{color:var(--brand);font-family:var(--font-num);}
.article-body blockquote{
  margin:1.4em 0;padding:16px 18px;background:var(--bg-1);
  border-left:3px solid var(--brand);border-radius:0 var(--r-m) var(--r-m) 0;color:var(--text-2);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body a{color:var(--brand);text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{color:#C7F46E;}
.article-body img{border-radius:var(--r-m);margin:1.2em 0;}
.article-body figure{margin:1.4em 0;}
.article-body figcaption{text-align:center;font-size:13px;color:var(--text-3);margin-top:8px;}
.article-body table{width:100%;border-collapse:collapse;margin:1.4em 0;font-size:15px;}
.article-body th,.article-body td{padding:10px 12px;border-bottom:1px solid var(--line);text-align:left;}
.article-body th{background:var(--bg-1);font-weight:600;}
.article-body code{
  font-family:var(--font-num);background:var(--bg-3);padding:2px 6px;border-radius:var(--r-s);font-size:.9em;
}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2em 0;}
@media (min-width:1024px){
  .article-body>p:first-of-type::first-letter{
    float:left;font-size:3.1em;line-height:.88;font-weight:800;color:var(--brand);
    margin:.06em .12em 0 0;
  }
}

/* 空态 */
.empty-state{
  border:1px dashed var(--line);border-radius:var(--r-l);background:var(--bg-1);
  padding:48px 24px;text-align:center;
}
.empty-state .empty-icon{
  width:54px;height:54px;margin:0 auto 16px;border-radius:var(--r-l);
  display:grid;place-items:center;border:1px solid var(--line);background:var(--bg-2);color:var(--text-3);
}
.empty-state .empty-icon svg{width:24px;height:24px;}
.empty-state p{margin:0 0 18px;color:var(--text-2);font-size:15px;}

/* 文末 */
.article-foot{margin-top:40px;padding-top:28px;border-top:1px solid var(--line);}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:24px;}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 13px;
  border:1px solid var(--line-brand);border-radius:var(--r-pill);
  font-size:12.5px;letter-spacing:.04em;color:var(--brand);background:rgba(168,230,58,.06);
  transition:background .2s ease,color .2s ease;
}
.tag:hover{background:rgba(168,230,58,.16);}
.action-row{display:flex;flex-wrap:wrap;gap:12px;}
.action-btn{
  display:inline-flex;align-items:center;gap:8px;height:40px;padding:0 16px;
  border:1px solid var(--line);border-radius:var(--r-pill);background:transparent;
  color:var(--text-2);font-size:14px;cursor:pointer;
  transition:border-color .2s ease,color .2s ease,transform .18s ease,background .2s ease;
}
.action-btn svg{width:17px;height:17px;flex:none;}
.action-btn:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px);}
.action-btn.is-on{border-color:var(--brand);color:var(--brand);background:rgba(168,230,58,.1);}

/* 上下篇 */
.prev-next{display:grid;gap:16px;margin-top:36px;}
@media (min-width:768px){.prev-next{grid-template-columns:1fr 1fr;}}
.pn-card{
  display:block;background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-l);
  padding:18px 20px;transition:transform .2s ease-out,border-color .2s ease,box-shadow .2s ease;
}
.pn-card:hover{transform:translateY(-2px);border-color:var(--line-brand);box-shadow:var(--shadow-card);}
.pn-card .pn-label{font-size:12px;letter-spacing:.06em;color:var(--text-3);display:block;margin-bottom:8px;}
.pn-card .pn-title{
  display:block;font-size:16px;font-weight:600;color:var(--text-1);
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.pn-card.next{text-align:right;}

/* 相关推荐 */
.relate-section{margin-top:64px;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:22px;}
.section-head h2{margin:0;font-size:clamp(20px,2.2vw,26px);font-weight:700;letter-spacing:-.2px;}
.section-head .head-note{font-size:14px;color:var(--text-2);margin-top:6px;}
.text-link{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-size:14px;font-weight:600;}
.text-link svg{width:16px;height:16px;transition:transform .2s ease;}
.text-link:hover svg{transform:translateX(3px);}
.card-grid{display:grid;grid-template-columns:1fr;gap:22px;}
@media (min-width:768px){.card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (min-width:1024px){.card-grid{grid-template-columns:repeat(3,minmax(0,1fr));}}
.post-card{
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-l);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform .2s ease-out,border-color .2s ease,box-shadow .2s ease;
}
.post-card:hover{transform:translateY(-2px);border-color:var(--line-brand);box-shadow:var(--shadow-card);}
.post-cover{display:block;overflow:hidden;background:var(--bg-1);}
.post-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .35s ease;}
.post-card:hover .post-cover img{transform:scale(1.04);}
.post-body{padding:18px 18px 20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.post-body h3{margin:0;font-size:17px;font-weight:600;line-height:1.5;}
.post-body .post-desc{
  margin:0;font-size:14px;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;}
.post-time{font-size:13px;color:var(--text-3);font-family:var(--font-num);font-variant-numeric:tabular-nums;}

/* 返回入口 */
.back-row{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin:44px 0 8px;}

/* 侧栏 */
.side-sticky{position:sticky;top:88px;display:grid;gap:20px;}
.side-card{background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-l);padding:18px;box-shadow:var(--shadow-card);}
.side-card h2{margin:0 0 14px;font-size:14px;font-weight:600;letter-spacing:.06em;color:var(--text-2);}
.toc-list{display:grid;gap:2px;}
.toc-list a{
  display:block;padding:9px 10px;font-size:14px;color:var(--text-2);
  border-left:2px solid transparent;border-radius:0 var(--r-s) var(--r-s) 0;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;transition:color .2s ease,background .2s ease,border-color .2s ease;
}
.toc-list a:hover{color:var(--text-1);background:var(--bg-1);border-left-color:var(--brand);}
.hot-list{display:grid;gap:4px;}
.hot-list a{
  display:flex;gap:10px;align-items:flex-start;padding:9px 8px;border-radius:var(--r-s);
  font-size:14px;color:var(--text-2);transition:background .2s ease,color .2s ease;
}
.hot-list a:hover{background:var(--bg-1);color:var(--text-1);}
.hot-list .no{
  font-family:var(--font-num);font-size:13px;color:var(--brand);
  min-width:20px;line-height:1.9;
}
.side-note{
  background:var(--bg-2);border:1px solid var(--line);border-left:3px solid var(--warn);
  border-radius:var(--r-m);padding:14px 16px;font-size:13.5px;color:var(--text-2);
}

/* 回到顶部 */
.to-top{
  position:fixed;right:24px;bottom:28px;z-index:70;
  width:46px;height:46px;border-radius:50%;
  display:grid;place-items:center;
  background:var(--bg-2);border:1px solid var(--line-brand);color:var(--brand);
  cursor:pointer;opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .25s ease,transform .25s ease,visibility .25s ease,background .2s ease;
}
.to-top.is-show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:var(--bg-3);}
.to-top svg{width:20px;height:20px;}
@media (max-width:767px){.to-top{right:16px;bottom:20px;}}

/* CTA 条 */
.cta-band{
  position:relative;overflow:hidden;margin-top:72px;
  background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.cta-band::before{
  content:"";position:absolute;left:-60px;top:-40px;width:220px;height:220px;
  background:linear-gradient(135deg,rgba(168,230,58,.16),rgba(168,230,58,0));
  transform:rotate(20deg);pointer-events:none;
}
.cta-inner{
  position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;
  gap:28px;padding-top:44px;padding-bottom:44px;flex-wrap:wrap;
}
.cta-inner h2{margin:0 0 8px;font-size:clamp(21px,2.4vw,28px);font-weight:700;letter-spacing:-.2px;}
.cta-inner p{margin:0;font-size:15px;color:var(--text-2);max-width:560px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}
@media (max-width:767px){.cta-actions{width:100%;}.cta-actions .btn{flex:1;}}

/* 页脚 */
.site-footer{background:var(--bg-0);border-top:1px solid var(--line);padding:56px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px;}
.footer-brand .brand{margin-bottom:14px;}
.footer-brand p{margin:0;font-size:14px;color:var(--text-2);max-width:340px;line-height:1.8;}
.footer-col h4{margin:0 0 14px;font-size:15px;font-weight:600;}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{font-size:14px;color:var(--text-2);transition:color .2s ease;}
.footer-col a:hover{color:var(--brand);}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
  margin-top:44px;padding:18px 0 28px;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}
@media (max-width:1023px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:767px){
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* 导航折叠 */
@media (max-width:1023px){
  .nav-links,.search-box,.login-link{display:none;}
  .hamburger{display:block;}
  .brand{font-size:15px;}
}
@media (max-width:480px){
  .brand{font-size:14px;}
  .brand-mark{width:24px;height:24px;font-size:12px;}
}
@media (max-width:767px){
  .nav{height:56px;}
  .article-hero{padding:24px 0 30px;}
}

/* roulang page: category1 */
:root{
  --bg-0:#0A0F0D;
  --bg-1:#101816;
  --bg-2:#16211E;
  --bg-3:#1E2B27;
  --brand:#A8E63A;
  --accent:#FF4D8D;
  --warn:#FFB020;
  --info:#4EC9E0;
  --text-1:#EAF2EC;
  --text-2:#A9B8B0;
  --text-3:#74847C;
  --line:rgba(255,255,255,.07);
  --line-strong:rgba(255,255,255,.12);
  --line-brand:rgba(168,230,58,.35);
  --r-s:6px;
  --r-m:10px;
  --r-l:14px;
  --r-pill:999px;
  --shadow-card:0 1px 0 rgba(255,255,255,.04) inset, 0 10px 30px rgba(0,0,0,.45);
  --shadow-brand:0 8px 22px rgba(168,230,58,.26);
  --font:system-ui,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  --mono:ui-monospace,"DIN Alternate","SFMono-Regular",monospace;
  --gap-block:96px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{
  background:var(--bg-0);
  color:var(--text-1);
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input{font-family:inherit;font-size:inherit;color:inherit}
button{background:none;border:none;cursor:pointer}
ul,ol{list-style:none}
::selection{background:var(--brand);color:#0A0F0D}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:var(--r-s)}
body::-webkit-scrollbar{width:10px}
body::-webkit-scrollbar-track{background:var(--bg-0)}
body::-webkit-scrollbar-thumb{background:var(--bg-3);border-radius:var(--r-pill)}
body::-webkit-scrollbar-thumb:hover{background:#2c3d37}

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

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:120;
  background:rgba(10,15,13,.92);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.scrolled{box-shadow:0 6px 20px rgba(0,0,0,.5)}
.nav{display:flex;align-items:center;gap:24px;height:64px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:24px;height:24px;border-radius:8px;
  display:flex;align-items:center;justify-content:center;
  background:var(--bg-2);border:1px solid var(--line-brand);
  color:var(--brand);font-size:13px;font-weight:800;line-height:1;
}
.brand-text{font-size:16px;font-weight:700;letter-spacing:-.2px;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:8px}
.nav-link{
  position:relative;font-size:15px;font-weight:500;color:var(--text-2);
  padding:8px 12px;border-radius:var(--r-s);transition:color .18s ease;
  min-height:44px;display:inline-flex;align-items:center;
}
.nav-link:hover{color:var(--text-1)}
.nav-link.active{color:var(--text-1)}
.nav-link.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:var(--brand);border-radius:var(--r-pill);
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:var(--brand);border-radius:var(--r-pill);transform:scaleX(0);
  transform-origin:left;transition:transform .2s ease;
}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:14px;margin-left:auto}
.search-box{
  display:flex;align-items:center;gap:8px;
  width:220px;height:40px;padding:0 14px;
  background:var(--bg-3);border:1px solid var(--line);border-radius:var(--r-pill);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.search-box:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(168,230,58,.18)}
.search-box svg{width:16px;height:16px;color:var(--text-3);flex-shrink:0}
.search-box input{background:none;border:none;outline:none;width:100%;font-size:14px}
.search-box input::placeholder{color:var(--text-3)}
.login-link{font-size:14px;color:var(--text-2);transition:color .18s ease;padding:6px 2px;min-height:44px;display:inline-flex;align-items:center}
.login-link:hover{color:var(--brand)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-weight:600;font-size:15px;height:44px;padding:0 20px;
  border-radius:var(--r-m);border:1px solid transparent;
  cursor:pointer;transition:transform .2s ease-out,filter .2s ease-out,border-color .2s ease,color .2s ease,box-shadow .2s ease;
  white-space:nowrap;
}
.btn svg{width:16px;height:16px}
.btn-primary{background:var(--brand);color:#0A0F0D;box-shadow:var(--shadow-brand)}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 10px 26px rgba(168,230,58,.34)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text-1)}
.btn-ghost:hover{border-color:var(--line-brand);color:var(--brand)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{height:40px;padding:0 16px;font-size:14px}
.btn-lg{height:48px;padding:0 24px}
.hamburger{
  display:none;width:44px;height:44px;border-radius:var(--r-m);
  border:1px solid var(--line);align-items:center;justify-content:center;position:relative;
}
.hamburger span,.hamburger span::before,.hamburger span::after{
  content:"";display:block;width:18px;height:2px;background:var(--text-1);border-radius:2px;
  transition:transform .22s ease,opacity .18s ease;position:absolute;left:50%;margin-left:-9px;
}
.hamburger span{top:50%;margin-top:-1px}
.hamburger span::before{top:-6px;left:0;margin-left:0}
.hamburger span::after{top:6px;left:0;margin-left:0}
.hamburger.open span{background:transparent}
.hamburger.open span::before{transform:translateY(6px) rotate(45deg)}
.hamburger.open span::after{transform:translateY(-6px) rotate(-45deg)}

/* ---------- drawer ---------- */
.drawer{
  position:fixed;inset:0;z-index:110;background:var(--bg-1);
  display:flex;flex-direction:column;padding:80px 24px 28px;
  transform:translateY(-100%);opacity:0;visibility:hidden;
  transition:transform .28s ease,opacity .22s ease,visibility .28s;
  overflow-y:auto;
}
.drawer.open{transform:translateY(0);opacity:1;visibility:visible}
.drawer-nav{display:flex;flex-direction:column}
.drawer-nav a{
  font-size:18px;line-height:56px;color:var(--text-1);
  border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;
}
.drawer-nav a.active{color:var(--brand)}
.drawer-bottom{margin-top:auto;padding-top:24px;display:flex;flex-direction:column;gap:14px}
.drawer .search-box{width:100%}
body.locked{overflow:hidden}

/* ---------- hero ---------- */
.cat-hero{
  position:relative;overflow:hidden;
  background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  padding:76px 0 60px;
}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(10,15,13,.84) 0%,rgba(10,15,13,.93) 60%,var(--bg-0) 100%);
}
.cat-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:64px 64px;
}
.cat-hero .container{position:relative;z-index:2}
.hero-grid{display:grid;grid-template-columns:1.4fr .9fr;gap:40px;align-items:center}
.kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.06em;color:var(--brand);
  background:rgba(168,230,58,.12);border:1px solid rgba(168,230,58,.3);
  border-radius:var(--r-pill);padding:6px 14px;margin-bottom:18px;
}
.kicker i{width:6px;height:6px;border-radius:50%;background:var(--brand);display:block}
.page-h1{
  font-size:clamp(30px,4.4vw,52px);line-height:1.15;font-weight:800;
  letter-spacing:-.5px;margin-bottom:18px;
}
.page-h1 em{font-style:normal;color:var(--brand)}
.hero-lead{font-size:16px;line-height:1.9;color:var(--text-2);max-width:640px;margin-bottom:26px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px}
.hero-tags span{
  font-size:13px;color:var(--text-2);background:var(--bg-2);
  border:1px solid var(--line);border-radius:var(--r-pill);padding:6px 14px;
}
.hero-tags span b{font-family:var(--mono);font-variant-numeric:tabular-nums;color:var(--brand);font-weight:600;margin-right:4px}
.stat-stack{display:flex;flex-direction:column;gap:16px}
.stat-card{
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-l);
  padding:20px 22px;box-shadow:var(--shadow-card);
  display:flex;align-items:center;gap:18px;
}
.stat-num{font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:32px;font-weight:700;color:var(--brand);line-height:1}
.stat-label{font-size:13px;color:var(--text-2);line-height:1.6}
.stat-label strong{display:block;color:var(--text-1);font-size:14px;font-weight:600}

/* ---------- breadcrumb ---------- */
.crumb{padding:20px 0 0;font-size:13px;color:var(--text-3)}
.crumb ol{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.crumb li{display:flex;align-items:center;gap:8px}
.crumb li+li::before{content:"/";color:var(--text-3)}
.crumb a{color:var(--text-3);transition:color .18s ease}
.crumb a:hover{color:var(--brand)}
.crumb li[aria-current]{color:var(--text-2)}

/* ---------- section base ---------- */
.section{padding-block:var(--gap-block)}
.section-tight{padding-block:64px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px}
.section-head h2{font-size:clamp(24px,2.6vw,34px);line-height:1.25;font-weight:700}
.section-head p{font-size:14px;color:var(--text-2);margin-top:8px}
.link-more{
  display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-size:14px;font-weight:600;
  white-space:nowrap;transition:gap .2s ease;
}
.link-more svg{width:15px;height:15px;transition:transform .2s ease}
.link-more:hover svg{transform:translateX(3px)}

/* ---------- filter + grid ---------- */
.browse{display:grid;grid-template-columns:236px minmax(0,1fr);gap:28px;align-items:start}
.filter-bar{
  position:sticky;top:84px;
  background:var(--bg-1);border:1px solid var(--line);border-radius:var(--r-l);
  padding:20px 18px;
}
.filter-bar h2{font-size:14px;font-weight:600;color:var(--text-2);letter-spacing:.06em;margin-bottom:14px}
.filter-list{display:flex;flex-direction:column;gap:8px}
.filter-btn{
  text-align:left;font-size:14px;color:var(--text-2);
  background:var(--bg-3);border:1px solid transparent;border-radius:var(--r-pill);
  padding:10px 16px;min-height:44px;display:flex;align-items:center;gap:8px;
  transition:background .18s ease,color .18s ease,border-color .18s ease;
}
.filter-btn:hover{color:var(--text-1);border-color:var(--line-strong)}
.filter-btn.active{background:var(--brand);color:#0A0F0D;font-weight:600}
.filter-btn .dotline{width:6px;height:6px;border-radius:50%;background:currentColor;opacity:.6}
.query-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.vcard{
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-l);
  overflow:hidden;box-shadow:var(--shadow-card);
  display:flex;flex-direction:column;
  transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.vcard:hover{transform:translateY(-2px);border-color:var(--line-brand);box-shadow:0 14px 34px rgba(0,0,0,.55)}
.vcard.hidden{display:none}
.vcard-cover{display:block;aspect-ratio:16/9;overflow:hidden;background:var(--bg-1)}
.vcard-cover img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.vcard:hover .vcard-cover img{transform:scale(1.04)}
.vcard-body{padding:18px;display:flex;flex-direction:column;gap:10px;flex:1}
.vcard-body h3{font-size:17px;font-weight:600;line-height:1.5}
.vcard-body h3 a{transition:color .18s ease}
.vcard-body h3 a:hover{color:var(--brand)}
.vcard-body p{font-size:14px;color:var(--text-2);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.vcard-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:13px;color:var(--text-3)}
.vcard-meta .time{font-family:var(--mono);font-variant-numeric:tabular-nums}
.vcard-meta .read{display:inline-flex;align-items:center;gap:5px;color:var(--brand);font-weight:600}
.vcard-meta .read svg{width:14px;height:14px;transition:transform .2s ease}
.vcard:hover .vcard-meta .read svg{transform:translateX(3px)}
.badge{
  display:inline-flex;align-items:center;align-self:flex-start;
  font-size:12px;letter-spacing:.06em;padding:4px 12px;border-radius:var(--r-pill);
  border:1px solid transparent;line-height:1.6;
}
.badge-brand{color:var(--brand);background:rgba(168,230,58,.14);border-color:rgba(168,230,58,.3)}
.badge-info{color:var(--info);background:rgba(78,201,224,.14);border-color:rgba(78,201,224,.3)}
.badge-warn{color:var(--warn);background:rgba(255,176,32,.14);border-color:rgba(255,176,32,.3)}
.badge-accent{color:var(--accent);background:rgba(255,77,141,.14);border-color:rgba(255,77,141,.3)}
.badge-mute{color:var(--text-2);background:rgba(255,255,255,.06);border-color:var(--line-strong)}
.empty-note{
  display:none;grid-column:1/-1;text-align:center;padding:56px 20px;
  background:var(--bg-1);border:1px dashed var(--line-strong);border-radius:var(--r-l);color:var(--text-2);
}
.empty-note.show{display:block}
.empty-note svg{width:34px;height:34px;color:var(--text-3);margin:0 auto 12px}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.step{
  background:var(--bg-1);border:1px solid var(--line);border-radius:var(--r-l);
  padding:24px 22px;position:relative;overflow:hidden;
  transition:transform .2s ease-out,border-color .2s ease-out;
}
.step:hover{transform:translateY(-2px);border-color:var(--line-brand)}
.step-num{
  font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:28px;font-weight:700;
  color:transparent;-webkit-text-stroke:1px var(--brand);letter-spacing:1px;display:block;margin-bottom:14px;
}
.step h3{font-size:18px;font-weight:600;margin-bottom:10px}
.step p{font-size:14px;color:var(--text-2);line-height:1.8}

/* ---------- faq ---------- */
.faq-wrap{max-width:860px;margin:0 auto}
.faq-item{border-top:1px solid var(--line)}
.faq-item:last-child{border-bottom:1px solid var(--line)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 4px;font-size:16px;font-weight:600;min-height:44px;
  transition:color .18s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--brand)}
.faq-icon{
  width:26px;height:26px;flex-shrink:0;border-radius:50%;
  border:1px solid var(--line-strong);display:flex;align-items:center;justify-content:center;
  transition:transform .24s ease,border-color .24s ease;
}
.faq-icon svg{width:13px;height:13px;color:var(--text-2)}
.faq-item[open] .faq-icon{transform:rotate(180deg);border-color:var(--line-brand)}
.faq-item[open] .faq-icon svg{color:var(--brand)}
.faq-answer{padding:0 4px 24px;font-size:15px;line-height:1.85;color:var(--text-2);max-width:720px}

/* ---------- cta ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--bg-1);border:1px solid var(--line);border-radius:var(--r-l);
  padding:48px 44px;
}
.cta-band::before{
  content:"";position:absolute;top:-40%;right:-8%;width:340px;height:340px;
  background:linear-gradient(135deg,rgba(168,230,58,.24),rgba(168,230,58,0));
  transform:rotate(24deg);pointer-events:none;
}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-inner h2{font-size:clamp(22px,2.6vw,32px);font-weight:700;line-height:1.3;margin-bottom:10px}
.cta-inner p{font-size:15px;color:var(--text-2);max-width:560px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- related chips ---------- */
.chips{display:flex;gap:12px;flex-wrap:wrap}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;color:var(--text-2);background:var(--bg-2);
  border:1px solid var(--line);border-radius:var(--r-pill);padding:11px 20px;min-height:44px;
  transition:color .18s ease,border-color .18s ease,transform .2s ease-out;
}
.chip:hover{color:var(--brand);border-color:var(--line-brand);transform:translateY(-2px)}
.chip.current{color:#0A0F0D;background:var(--brand);border-color:var(--brand);font-weight:600}

/* ---------- footer ---------- */
.site-footer{background:var(--bg-0);border-top:1px solid var(--line);padding:64px 0 0;margin-top:24px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px;padding-bottom:44px}
.footer-brand p{font-size:14px;color:var(--text-2);line-height:1.85;margin-top:16px;max-width:340px}
.footer-col h4{font-size:14px;font-weight:600;color:var(--text-1);margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;color:var(--text-2);transition:color .18s ease;display:inline-block;min-height:24px}
.footer-col a:hover{color:var(--brand)}
.footer-bottom{
  border-top:1px solid var(--line);padding:20px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}

/* ---------- float bar ---------- */
.float-bar{
  position:fixed;right:24px;bottom:24px;z-index:100;
  display:flex;align-items:center;gap:14px;
  background:var(--bg-2);border:1px solid var(--line-strong);border-radius:var(--r-pill);
  padding:10px 12px 10px 20px;box-shadow:0 14px 34px rgba(0,0,0,.55);
  transition:opacity .25s ease,transform .25s ease;
}
.float-bar.hide{opacity:0;transform:translateY(12px);pointer-events:none}
.float-text{font-size:14px;color:var(--text-2);white-space:nowrap}
.float-close{
  width:28px;height:28px;border-radius:50%;border:1px solid var(--line);
  color:var(--text-3);font-size:16px;line-height:1;display:flex;align-items:center;justify-content:center;
  transition:color .18s ease,border-color .18s ease;
}
.float-close:hover{color:var(--accent);border-color:rgba(255,77,141,.4)}

/* ---------- to top ---------- */
.to-top{
  position:fixed;right:24px;bottom:96px;z-index:99;
  width:44px;height:44px;border-radius:50%;
  border:1px solid var(--line-brand);background:rgba(10,15,13,.86);color:var(--brand);
  display:flex;align-items:center;justify-content:center;
  opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease,transform .2s ease;
}
.to-top.show{opacity:1;visibility:visible}
.to-top:hover{transform:translateY(-2px)}
.to-top svg{width:16px;height:16px}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  :root{--gap-block:80px}
  .nav-links{gap:2px}
  .search-box{width:190px}
}
@media (max-width:1080px){
  .brand-text{font-size:15px}
  .nav-links{display:none}
  .hamburger{display:flex}
  .nav-actions{gap:10px}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .stat-stack{flex-direction:row;flex-wrap:wrap}
  .stat-card{flex:1 1 200px}
}
@media (max-width:1023px){
  :root{--gap-block:72px}
  .container{padding:0 24px}
  .browse{grid-template-columns:1fr}
  .filter-bar{position:static;padding:16px}
  .filter-list{flex-direction:row;overflow-x:auto;gap:10px;padding-bottom:4px}
  .filter-btn{white-space:nowrap;flex-shrink:0}
  .query-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767px){
  :root{--gap-block:52px}
  .container{padding:0 16px}
  .search-box,.login-link{display:none}
  .page-h1{font-size:clamp(28px,7vw,36px)}
  .cat-hero{padding:48px 0 44px}
  .section-tight{padding-block:44px}
  .query-grid{grid-template-columns:1fr;gap:18px}
  .steps{grid-template-columns:1fr}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:24px}
  .cta-band{padding:32px 22px}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  body{padding-bottom:60px}
  .float-bar{
    left:0;right:0;bottom:0;border-radius:0;border-left:none;border-right:none;border-bottom:none;
    padding:10px 14px;height:60px;justify-content:space-between;
  }
  .float-text{font-size:13px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1}
  .to-top{bottom:74px;right:16px}
}
@media (max-width:520px){
  .hero-tags span{font-size:12px;padding:5px 12px}
  .stat-stack{flex-direction:column}
  .stat-card{flex:1 1 auto}
}

/* roulang page: category3 */
:root{
  --bg-0:#0A0F0D;
  --bg-1:#101816;
  --bg-2:#16211E;
  --bg-3:#1E2B27;
  --brand:#A8E63A;
  --accent:#FF4D8D;
  --warn:#FFB020;
  --info:#4EC9E0;
  --text-1:#EAF2EC;
  --text-2:#A9B8B0;
  --text-3:#74847C;
  --line:rgba(255,255,255,.07);
  --line-soft:rgba(255,255,255,.06);
  --line-brand:rgba(168,230,58,.35);
  --r-s:6px;
  --r-m:10px;
  --r-l:14px;
  --r-pill:999px;
  --card-shadow:inset 0 1px 0 rgba(255,255,255,.04), 0 10px 30px rgba(0,0,0,.45);
  --brand-glow:0 8px 22px rgba(168,230,58,.26);
  --mono:ui-monospace,"DIN Alternate",Menlo,Consolas,monospace;
  --sec:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-1);
  font-family:system-ui,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.nav-open{overflow:hidden;}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input{font-family:inherit;font-size:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;line-height:1.25;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
::selection{background:var(--brand);color:#0A0F0D;}
::-webkit-scrollbar{width:10px;height:10px;}
::-webkit-scrollbar-track{background:var(--bg-0);}
::-webkit-scrollbar-thumb{background:var(--bg-3);border-radius:999px;}
::-webkit-scrollbar-thumb:hover{background:#2b3c37;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums;}

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

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:120;
  background:rgba(10,15,13,.92);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease-out;
}
.site-header.scrolled{box-shadow:0 6px 20px rgba(0,0,0,.5);}
.nav{display:flex;align-items:center;gap:20px;height:64px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  background:var(--bg-2);border:1px solid var(--line-brand);
  color:var(--brand);font-weight:800;font-size:17px;line-height:1;
}
.brand-text{font-size:16px;font-weight:700;letter-spacing:.2px;color:var(--text-1);white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:6px;}
.nav-link{
  position:relative;padding:20px 12px;font-size:15px;font-weight:500;
  color:var(--text-2);transition:color .2s ease-out;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:14px;height:2px;
  border-radius:2px;background:var(--brand);
  transform:scaleX(0);transform-origin:left;transition:transform .2s ease-out;
}
.nav-link:hover{color:var(--text-1);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:var(--text-1);}
.nav-link.active::after{transform:scaleX(1);}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:14px;}
.search-box{
  display:flex;align-items:center;gap:8px;width:216px;height:38px;padding:0 14px;
  background:var(--bg-3);border:1px solid var(--line);border-radius:var(--r-pill);
  color:var(--text-3);transition:border-color .2s,box-shadow .2s;
}
.search-box:focus-within{border-color:var(--line-brand);box-shadow:0 0 0 3px rgba(168,230,58,.18);}
.search-box svg{width:16px;height:16px;flex:0 0 auto;}
.search-box input{width:100%;background:none;border:0;outline:none;font-size:14px;color:var(--text-1);}
.search-box input::placeholder{color:var(--text-3);}
.login-link{font-size:15px;color:var(--text-2);transition:color .2s;}
.login-link:hover{color:var(--brand);}
.hamburger{
  display:none;width:44px;height:44px;align-items:center;justify-content:center;
  background:none;border:0;cursor:pointer;padding:0;
}
.hamburger span{display:block;width:20px;height:2px;background:var(--text-1);border-radius:2px;position:relative;transition:background .2s;}
.hamburger span::before,.hamburger span::after{
  content:"";position:absolute;left:0;width:20px;height:2px;background:var(--text-1);
  border-radius:2px;transition:transform .25s ease-out,top .25s ease-out;
}
.hamburger span::before{top:-6px;}
.hamburger span::after{top:6px;}
.hamburger.open span{background:transparent;}
.hamburger.open span::before{top:0;transform:rotate(45deg);}
.hamburger.open span::after{top:0;transform:rotate(-45deg);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-weight:600;border-radius:var(--r-pill);border:1px solid transparent;
  cursor:pointer;transition:transform .2s ease-out,box-shadow .2s ease-out,background .2s,color .2s,border-color .2s,filter .2s;
  white-space:nowrap;
}
.btn svg{width:16px;height:16px;flex:0 0 auto;}
.btn-primary{background:var(--brand);color:#0A0F0D;box-shadow:var(--brand-glow);}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 12px 28px rgba(168,230,58,.36);}
.btn-primary:active{transform:translateY(1px);box-shadow:0 4px 12px rgba(168,230,58,.2);}
.btn-ghost{background:transparent;color:var(--text-1);border-color:var(--line);}
.btn-ghost:hover{border-color:var(--line-brand);color:var(--brand);transform:translateY(-1px);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-lg{height:48px;padding:0 26px;font-size:16px;}
.btn[disabled]{opacity:.4;cursor:not-allowed;transform:none;}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 10px;border-radius:var(--r-pill);
  font-size:12px;letter-spacing:.06em;line-height:1.6;white-space:nowrap;
}
.badge-brand{background:rgba(168,230,58,.14);color:var(--brand);border:1px solid rgba(168,230,58,.3);}
.badge-accent{background:rgba(255,77,141,.14);color:var(--accent);border:1px solid rgba(255,77,141,.3);}
.badge-info{background:rgba(78,201,224,.14);color:var(--info);border:1px solid rgba(78,201,224,.3);}
.badge-warn{background:rgba(255,176,32,.14);color:var(--warn);border:1px solid rgba(255,176,32,.3);}

/* ---------- 首屏 ---------- */
.page-hero{
  position:relative;overflow:hidden;
  padding:76px 0 68px;
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(180deg,rgba(10,15,13,.78) 0%,rgba(10,15,13,.9) 55%,rgba(10,15,13,.98) 100%),url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(0deg,var(--line-soft) 0 1px,transparent 1px 64px),repeating-linear-gradient(90deg,var(--line-soft) 0 1px,transparent 1px 64px);
  opacity:.5;pointer-events:none;
}
.hero-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);
  gap:44px;align-items:center;
}
.kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.12em;color:var(--brand);
  background:rgba(168,230,58,.1);border:1px solid var(--line-brand);
  padding:5px 14px;border-radius:var(--r-pill);margin-bottom:18px;
}
.kicker i{width:6px;height:6px;border-radius:50%;background:var(--brand);display:inline-block;}
.page-hero h1{
  font-size:clamp(30px,4.4vw,50px);font-weight:800;letter-spacing:-.5px;line-height:1.15;
}
.hero-lead{margin-top:18px;max-width:620px;font-size:16px;color:var(--text-2);line-height:1.85;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  font-size:13px;color:var(--text-2);
}
.chip b{color:var(--text-1);font-family:var(--mono);font-weight:600;}

.hero-board{
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-l);
  box-shadow:var(--card-shadow);padding:22px;
}
.hero-board-head{
  display:flex;align-items:center;gap:8px;
  font-size:14px;font-weight:700;color:var(--text-1);
  padding-bottom:14px;border-bottom:1px solid var(--line);
}
.hero-board-head i{width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px rgba(255,77,141,.14);}
.hero-list li{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:13px 0;border-bottom:1px solid var(--line-soft);font-size:14px;
}
.hero-list li:last-child{border-bottom:0;padding-bottom:4px;}
.hero-list .hl-label{color:var(--text-2);}
.hero-list .hl-val{color:var(--brand);font-size:13px;letter-spacing:.02em;}

/* ---------- 板块通用 ---------- */
.section{padding-top:var(--sec);}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:20px;
  padding-bottom:22px;margin-bottom:28px;border-bottom:1px solid var(--line);
}
.section-head h2{font-size:clamp(24px,2.6vw,32px);font-weight:700;letter-spacing:-.3px;}
.section-head p{margin-top:10px;font-size:15px;color:var(--text-2);max-width:620px;}
.text-link{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;
  color:var(--brand);transition:gap .2s ease-out;
}
.text-link svg{width:15px;height:15px;transition:transform .2s ease-out;}
.text-link:hover svg{transform:translateX(3px);}

/* ---------- 主体两栏 ---------- */
.benefit-wrap{
  display:grid;grid-template-columns:minmax(0,1fr) 348px;
  gap:32px;align-items:start;
}
.filter-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:24px;}
.filter-chip{
  padding:7px 16px;border-radius:var(--r-pill);font-size:13px;
  background:var(--bg-3);border:1px solid var(--line);color:var(--text-2);
  transition:all .2s ease-out;cursor:pointer;
}
.filter-chip:hover{color:var(--text-1);border-color:var(--line-brand);}
.filter-chip.active{background:var(--brand);color:#0A0F0D;border-color:var(--brand);font-weight:600;}

.benefit-list{display:flex;flex-direction:column;gap:20px;}
.benefit-card{
  display:grid;grid-template-columns:240px minmax(0,1fr);gap:20px;
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-l);
  padding:18px;box-shadow:var(--card-shadow);
  transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.benefit-card:hover{transform:translateY(-2px);border-color:var(--line-brand);box-shadow:0 16px 38px rgba(0,0,0,.55);}
.benefit-thumb{
  position:relative;border-radius:var(--r-m);overflow:hidden;background:var(--bg-1);
}
.benefit-thumb img{width:100%;height:100%;min-height:158px;object-fit:cover;transition:transform .35s ease-out;opacity:0;}
.benefit-thumb img.loaded{opacity:1;}
.benefit-card:hover .benefit-thumb img{transform:scale(1.04);}
.benefit-body{display:flex;flex-direction:column;gap:10px;min-width:0;}
.benefit-body h3{font-size:19px;font-weight:600;line-height:1.4;}
.benefit-body p{font-size:14px;color:var(--text-2);line-height:1.8;}
.benefit-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  font-size:13px;color:var(--text-3);
}
.benefit-meta span.dot{width:3px;height:3px;border-radius:50%;background:var(--text-3);display:inline-block;}
.benefit-foot{margin-top:auto;padding-top:6px;}

/* ---------- 侧栏 ---------- */
.sidebar{position:sticky;top:88px;display:flex;flex-direction:column;gap:20px;}
.panel{
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-l);
  padding:22px;box-shadow:var(--card-shadow);
}
.panel h3{font-size:17px;font-weight:700;margin-bottom:6px;}
.panel-sub{font-size:13px;color:var(--text-3);margin-bottom:12px;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:last-child{border-bottom:0;}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:12px;
  min-height:44px;padding:15px 0;background:none;border:0;cursor:pointer;
  text-align:left;font-size:15px;font-weight:600;color:var(--text-1);
  transition:color .2s ease-out;
}
.faq-q:hover{color:var(--brand);}
.faq-icon{
  flex:0 0 auto;width:18px;height:18px;color:var(--brand);
  transition:transform .25s ease-out;
}
.faq-item.open .faq-icon{transform:rotate(180deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease-out;}
.faq-item.open .faq-a{max-height:340px;}
.faq-a p{font-size:15px;line-height:1.8;color:var(--text-2);padding-bottom:16px;}

.tip-card{
  background:var(--bg-2);border:1px solid var(--line);border-left:3px solid var(--warn);
  border-radius:var(--r-l);padding:20px;
}
.tip-card h4{font-size:15px;font-weight:700;color:var(--warn);margin-bottom:8px;}
.tip-card p{font-size:14px;line-height:1.8;color:var(--text-2);}

/* ---------- 相关分类 ---------- */
.related-row{
  display:flex;gap:12px;overflow-x:auto;padding:4px 0 10px;
  scrollbar-width:thin;
}
.related-chip{
  flex:0 0 auto;display:inline-flex;align-items:center;gap:8px;
  padding:10px 20px;border-radius:var(--r-pill);
  background:var(--bg-2);border:1px solid var(--line);
  font-size:14px;color:var(--text-2);
  transition:all .2s ease-out;
}
.related-chip:hover{color:var(--text-1);border-color:var(--line-brand);transform:translateY(-2px);}
.related-chip.current{background:rgba(168,230,58,.12);border-color:var(--line-brand);color:var(--brand);font-weight:600;}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;margin-top:var(--sec);
  background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:72px 0;
}
.cta-band::before{
  content:"";position:absolute;top:-60px;left:-80px;width:340px;height:340px;
  background:linear-gradient(135deg,rgba(168,230,58,.16),rgba(168,230,58,0));
  clip-path:polygon(0 0,100% 0,0 100%);pointer-events:none;
}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.cta-inner h2{font-size:clamp(24px,2.6vw,34px);font-weight:700;letter-spacing:-.3px;}
.cta-inner p{margin-top:12px;font-size:15px;color:var(--text-2);max-width:520px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg-0);border-top:1px solid var(--line);padding-top:64px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px;}
.footer-brand p{margin-top:14px;max-width:340px;font-size:14px;line-height:1.85;color:var(--text-2);}
.footer-col h4{font-size:14px;font-weight:700;letter-spacing:.04em;margin-bottom:14px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:14px;color:var(--text-2);transition:color .2s ease-out;}
.footer-col a:hover{color:var(--brand);}
.footer-bottom{
  margin-top:48px;padding:20px 0;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}

/* ---------- 响应式 ---------- */
@media (max-width:1080px){
  .container{padding:0 24px;}
  .search-box{width:180px;}
  .nav{gap:14px;}
}
@media (max-width:1024px){
  :root{--sec:72px;}
  .benefit-wrap{grid-template-columns:1fr;}
  .sidebar{position:static;}
  .hero-inner{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:900px){
  .nav{height:56px;gap:10px;}
  .nav-links{
    position:fixed;top:56px;left:0;right:0;z-index:110;
    flex-direction:column;align-items:stretch;gap:0;margin:0;
    background:var(--bg-1);border-bottom:1px solid var(--line);
    padding:6px 16px 18px;max-height:calc(100vh - 56px);overflow-y:auto;
    box-shadow:0 20px 40px rgba(0,0,0,.55);
    opacity:0;visibility:hidden;transform:translateY(-12px);
    transition:opacity .22s ease-out,transform .22s ease-out,visibility .22s;
  }
  body.nav-open .nav-links{opacity:1;visibility:visible;transform:none;}
  .nav-link{padding:16px 4px;font-size:17px;border-bottom:1px solid var(--line-soft);}
  .nav-link::after{display:none;}
  .nav-link.active{color:var(--brand);}
  .hamburger{display:flex;}
  .search-box,.login-link{display:none;}
  .page-hero{padding:56px 0 52px;}
  .benefit-card{grid-template-columns:200px minmax(0,1fr);}
  .cta-band{padding:56px 0;}
}
@media (max-width:767px){
  :root{--sec:52px;}
  .container{padding:0 16px;}
  .page-hero h1{font-size:clamp(26px,7.2vw,34px);}
  .hero-lead{font-size:15px;}
  .hero-actions .btn{width:100%;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;}
  .benefit-card{grid-template-columns:1fr;padding:16px;gap:14px;}
  .benefit-thumb img{min-height:190px;height:190px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;gap:6px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;}
}
@media (max-width:560px){
  .nav-actions .btn-primary{display:none;}
  .brand-text{font-size:13.5px;}
  .brand-mark{width:30px;height:30px;font-size:15px;border-radius:8px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category2 */
:root{
  --bg-0:#0A0F0D;
  --bg-1:#101816;
  --bg-2:#16211E;
  --bg-3:#1E2B27;
  --brand:#A8E63A;
  --accent:#FF4D8D;
  --warn:#FFB020;
  --info:#4EC9E0;
  --text-1:#EAF2EC;
  --text-2:#A9B8B0;
  --text-3:#74847C;
  --line:rgba(255,255,255,.07);
  --line-brand:rgba(168,230,58,.35);
  --r-s:6px;
  --r-m:10px;
  --r-l:14px;
  --r-pill:999px;
  --shadow-card:0 1px 0 rgba(255,255,255,.04) inset, 0 10px 30px rgba(0,0,0,.45);
  --shadow-brand:0 8px 22px rgba(168,230,58,.26);
  --font:system-ui,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  --mono:ui-monospace,"DIN Alternate",monospace;
  --sec:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-1);
  font:16px/1.8 var(--font);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.no-scroll{overflow:hidden}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
button{cursor:pointer}
h1,h2,h3,h4{margin:0;line-height:1.25}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
::selection{background:var(--brand);color:var(--bg-0)}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:var(--bg-0)}
::-webkit-scrollbar-thumb{background:var(--bg-3);border-radius:var(--r-pill);border:2px solid var(--bg-0)}
::-webkit-scrollbar-thumb:hover{background:#2c3d37}
[hidden]{display:none !important}

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

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(10,15,13,.92);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.scrolled{box-shadow:0 6px 20px rgba(0,0,0,.5)}
.nav{display:flex;align-items:center;gap:24px;height:64px}
.brand{display:flex;align-items:center;gap:10px;flex:none}
.brand-mark{
  width:26px;height:26px;flex:none;display:grid;place-items:center;
  border-radius:8px;background:var(--bg-2);border:1px solid var(--line-brand);
  color:var(--brand);font-size:13px;font-weight:800;line-height:1;
}
.brand-text{font-size:16px;font-weight:700;letter-spacing:.2px;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:6px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:44px;
  padding:0 12px;font-size:15px;font-weight:500;color:var(--text-2);
  transition:color .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:6px;height:2px;
  border-radius:2px;background:var(--brand);transform:scaleX(0);
  transform-origin:left;transition:transform .22s ease;
}
.nav-link:hover{color:var(--text-1)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:var(--text-1)}
.nav-link.active::after{transform:scaleX(1)}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:14px}
.search-box{
  display:flex;align-items:center;gap:8px;width:230px;height:38px;padding:0 14px;
  background:var(--bg-3);border:1px solid var(--line);border-radius:var(--r-pill);
  color:var(--text-3);transition:border-color .2s ease, box-shadow .2s ease;
}
.search-box:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(168,230,58,.18)}
.search-box svg{width:16px;height:16px;flex:none}
.search-box input{flex:1;min-width:0;border:0;background:transparent;outline:none;font-size:14px;color:var(--text-1)}
.search-box input::placeholder{color:var(--text-3)}
.login-link{font-size:14px;color:var(--text-2);padding:8px 4px;transition:color .2s ease}
.login-link:hover{color:var(--text-1)}
.hamburger{
  display:none;position:relative;width:44px;height:44px;flex:none;
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-m);
}
.hamburger span,.hamburger::before,.hamburger::after{
  content:"";position:absolute;left:12px;right:12px;height:2px;border-radius:2px;
  background:var(--text-1);transition:transform .22s ease,opacity .22s ease;
}
.hamburger span{top:50%;transform:translateY(-50%)}
.hamburger::before{top:15px}
.hamburger::after{bottom:15px}
.hamburger.is-open span{opacity:0}
.hamburger.is-open::before{transform:translateY(6px) rotate(45deg)}
.hamburger.is-open::after{transform:translateY(-6px) rotate(-45deg)}

.drawer{
  position:fixed;left:0;right:0;top:56px;bottom:0;z-index:55;
  background:var(--bg-1);border-top:1px solid var(--line);
  padding:16px 16px 32px;overflow-y:auto;
  opacity:0;transform:translateY(-8px);pointer-events:none;
  transition:opacity .22s ease,transform .22s ease;
}
.drawer.open{opacity:1;transform:none;pointer-events:auto}
.drawer-inner{display:flex;flex-direction:column;gap:16px;max-width:520px;margin:0 auto}
.drawer-links{display:grid}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;height:56px;
  font-size:18px;color:var(--text-2);border-bottom:1px solid var(--line);
}
.drawer-link::after{content:"›";color:var(--text-3);font-size:20px}
.drawer-link.active,.drawer-link:hover{color:var(--brand)}
.drawer .search-box{width:100%}
.drawer .btn{width:100%}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-m);border:1px solid transparent;
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:transform .2s ease,background .2s ease,box-shadow .2s ease,border-color .2s ease,color .2s ease,filter .2s ease;
}
.btn svg{width:16px;height:16px;flex:none}
.btn-primary{background:var(--brand);color:var(--bg-0);box-shadow:var(--shadow-brand)}
.btn-primary:hover{transform:translateY(-1px);filter:brightness(1.06);box-shadow:0 10px 26px rgba(168,230,58,.34)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text-1)}
.btn-ghost:hover{border-color:var(--line-brand);color:var(--brand);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{height:40px;padding:0 16px;font-size:14px}
.btn-lg{height:48px;padding:0 26px}

.text-link{
  display:inline-flex;align-items:center;gap:6px;color:var(--brand);
  font-size:14px;font-weight:600;
}
.text-link svg{width:15px;height:15px;transition:transform .2s ease}
.text-link:hover svg{transform:translateX(2px)}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:var(--r-pill);font-size:12px;font-weight:500;letter-spacing:.06em;
  border:1px solid transparent;white-space:nowrap;
}
.badge-brand{background:rgba(168,230,58,.14);color:var(--brand);border-color:rgba(168,230,58,.3)}
.badge-info{background:rgba(78,201,224,.14);color:var(--info);border-color:rgba(78,201,224,.3)}
.badge-accent{background:rgba(255,77,141,.14);color:var(--accent);border-color:rgba(255,77,141,.3)}
.badge-warn{background:rgba(255,176,32,.14);color:var(--warn);border-color:rgba(255,176,32,.3)}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.hero-bg{
  position:absolute;inset:0;
  background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  opacity:.55;
}
.hero-mesh{
  position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:52px 52px;
  -webkit-mask-image:linear-gradient(180deg,#000 10%,transparent 85%);
  mask-image:linear-gradient(180deg,#000 10%,transparent 85%);
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(10,15,13,.7) 0%,rgba(10,15,13,.9) 62%,var(--bg-0) 100%);
}
.hero-slash{
  position:absolute;right:-70px;top:-90px;width:340px;height:340px;
  background:rgba(168,230,58,.08);transform:rotate(26deg);
  pointer-events:none;
}
.hero .container{position:relative;z-index:1;padding-top:34px;padding-bottom:72px}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:28px;flex-wrap:wrap}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:var(--text-3);opacity:.7}
.breadcrumb .current{color:var(--text-2)}
.hero-cols{
  display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,.65fr);
  gap:48px;align-items:center;
}
.kicker{
  display:inline-flex;align-items:center;gap:8px;margin-bottom:16px;
  font-size:13px;letter-spacing:.1em;color:var(--brand);
}
.kicker::before{content:"";width:18px;height:2px;border-radius:2px;background:var(--brand)}
.hero h1{
  font-size:clamp(30px,4.4vw,52px);
  font-weight:800;line-height:1.15;letter-spacing:-.5px;
}
.hero-lead{margin-top:18px;font-size:17px;line-height:1.85;color:var(--text-2);max-width:620px}
.hero-lead strong{color:var(--text-1);font-weight:600}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-tags{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:26px;font-size:13px;color:var(--text-2)}
.hero-tags .tag{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;
  border-radius:var(--r-pill);background:rgba(30,43,39,.8);border:1px solid var(--line);
}
.hero-tags .dot{width:3px;height:3px;border-radius:50%;background:var(--text-3)}
.hero-stats{display:grid;gap:16px}
.stat-card{
  background:rgba(22,33,30,.76);border:1px solid var(--line);
  border-radius:var(--r-l);padding:20px 22px;
  backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);
  box-shadow:var(--shadow-card);
}
.stat-card strong{
  display:block;font-family:var(--mono);font-variant-numeric:tabular-nums;
  font-size:30px;line-height:1.1;color:var(--brand);font-weight:700;
}
.stat-card span{display:block;margin-top:8px;font-size:13px;line-height:1.7;color:var(--text-2)}

/* ---------- 通用板块 ---------- */
.section{padding:var(--sec) 0}
.section-alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:24px;flex-wrap:wrap;margin-bottom:32px;
}
.section-head h2{font-size:clamp(24px,2.6vw,34px);font-weight:700}
.section-head .desc{margin-top:10px;font-size:15px;color:var(--text-2);max-width:640px}
.section-head .aside{flex:none}

/* ---------- Tab 分组 ---------- */
.tabs{
  display:flex;gap:10px;overflow-x:auto;padding-bottom:6px;
  scrollbar-width:none;
}
.tabs::-webkit-scrollbar{display:none}
.tab{
  flex:none;display:inline-flex;align-items:center;height:42px;padding:0 18px;
  border-radius:var(--r-pill);background:var(--bg-3);border:1px solid var(--line);
  color:var(--text-2);font-size:14px;font-weight:500;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.tab:hover{color:var(--text-1);border-color:var(--line-brand)}
.tab.active{background:var(--brand);border-color:transparent;color:var(--bg-0);font-weight:600}

/* ---------- 榜单列表 ---------- */
.rank-list{margin-top:26px;border-top:1px solid var(--line)}
.rank-item{
  display:grid;grid-template-columns:64px 104px minmax(0,1fr);
  gap:20px;align-items:start;
  padding:22px 14px;border-bottom:1px solid var(--line);
  border-radius:var(--r-m);
  transition:background .2s ease;
}
.rank-item:hover{background:var(--bg-1)}
.rank-no{
  font-family:var(--mono);font-variant-numeric:tabular-nums;
  font-size:30px;font-weight:700;line-height:1.1;padding-top:4px;
  color:transparent;-webkit-text-stroke:1px rgba(168,230,58,.75);
}
.rank-thumb{
  width:104px;aspect-ratio:4/3;border-radius:var(--r-m);overflow:hidden;
  background:var(--bg-1);border:1px solid var(--line);
}
.rank-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out}
.rank-item:hover .rank-thumb img{transform:scale(1.04)}
.rank-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--text-3)}
.rank-meta .num{font-family:var(--mono);font-variant-numeric:tabular-nums}
.rank-meta .sep{width:3px;height:3px;border-radius:50%;background:var(--text-3);opacity:.7}
.rank-body h3{margin:10px 0 8px;font-size:19px;font-weight:600;line-height:1.45}
.rank-body h3 a{transition:color .2s ease}
.rank-body h3 a:hover{color:var(--brand)}
.rank-body p{
  font-size:15px;line-height:1.75;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rank-foot{margin-top:12px}

/* ---------- 流程 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px}
.step{
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-l);
  padding:24px 22px;box-shadow:var(--shadow-card);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.step:hover{transform:translateY(-2px);border-color:var(--line-brand);box-shadow:0 14px 34px rgba(0,0,0,.5)}
.step-no{
  font-family:var(--mono);font-variant-numeric:tabular-nums;
  font-size:13px;letter-spacing:.12em;color:var(--brand);
}
.step h3{margin:12px 0 8px;font-size:17px;font-weight:600}
.step p{font-size:14px;line-height:1.75;color:var(--text-2)}

/* ---------- 图文说明块 ---------- */
.note-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:36px;align-items:center}
.note-figure{
  border-radius:var(--r-l);overflow:hidden;border:1px solid var(--line);
  background:var(--bg-1);aspect-ratio:16/9;
}
.note-figure img{width:100%;height:100%;object-fit:cover}
.note-list{display:grid;gap:14px;margin-top:22px}
.note-list li{
  display:grid;grid-template-columns:22px minmax(0,1fr);gap:12px;
  font-size:15px;line-height:1.75;color:var(--text-2);
}
.note-list li::before{
  content:"";width:8px;height:8px;margin-top:11px;border-radius:2px;background:var(--brand);
}
.note-list strong{color:var(--text-1);font-weight:600}

/* ---------- FAQ ---------- */
.faq{max-width:880px;margin:0 auto;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  list-style:none;display:flex;align-items:center;justify-content:space-between;
  gap:16px;padding:22px 4px;font-size:16px;font-weight:600;cursor:pointer;
  transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--brand)}
.faq-icon{width:20px;height:20px;flex:none;color:var(--text-3);transition:transform .25s ease,color .25s ease}
.faq-item[open] .faq-icon{transform:rotate(180deg);color:var(--brand)}
.faq-answer{padding:0 4px 22px;font-size:15px;line-height:1.85;color:var(--text-2);max-width:740px}

/* ---------- 相关分类 ---------- */
.chips{display:flex;gap:12px;overflow-x:auto;padding:4px 0 8px;scrollbar-width:none}
.chips::-webkit-scrollbar{display:none}
.chip{
  flex:none;display:inline-flex;align-items:center;height:44px;padding:0 20px;
  border-radius:var(--r-pill);background:var(--bg-2);border:1px solid var(--line);
  color:var(--text-2);font-size:14px;
  transition:color .2s ease,border-color .2s ease,transform .2s ease,background .2s ease;
}
.chip:hover{color:var(--brand);border-color:var(--line-brand);transform:translateY(-1px)}
.chip.is-current{background:rgba(168,230,58,.14);color:var(--brand);border-color:var(--line-brand);font-weight:600}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;padding:64px 0;
  background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.cta-band::before{
  content:"";position:absolute;left:-80px;top:-60px;width:300px;height:300px;
  background:rgba(168,230,58,.08);transform:rotate(24deg);
}
.cta-inner{
  position:relative;display:flex;align-items:center;justify-content:space-between;
  gap:32px;flex-wrap:wrap;
}
.cta-inner h2{font-size:clamp(24px,2.6vw,32px);font-weight:700}
.cta-inner .desc{margin-top:12px;font-size:15px;color:var(--text-2);max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg-0);border-top:1px solid var(--line);padding:64px 0 26px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:var(--text-2);max-width:350px}
.footer-col h4{font-size:14px;font-weight:600;letter-spacing:.04em;margin-bottom:16px}
.footer-col ul{display:grid;gap:11px}
.footer-col a{font-size:14px;color:var(--text-2);transition:color .2s ease}
.footer-col a:hover{color:var(--brand)}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}

/* ---------- 回到顶部 ---------- */
.to-top{
  position:fixed;right:24px;bottom:28px;z-index:50;
  width:46px;height:46px;display:grid;place-items:center;
  background:var(--bg-2);border:1px solid var(--line-brand);border-radius:var(--r-pill);
  color:var(--brand);opacity:0;transform:translateY(10px);pointer-events:none;
  transition:opacity .25s ease,transform .25s ease,box-shadow .25s ease;
}
.to-top.show{opacity:1;transform:none;pointer-events:auto}
.to-top:hover{box-shadow:0 10px 24px rgba(168,230,58,.22)}
.to-top svg{width:18px;height:18px}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .nav-links{gap:0}
  .search-box{width:200px}
}
@media (max-width:1023px){
  :root{--sec:72px}
  .container{padding:0 24px}
  .search-box{display:none}
  .nav{height:60px;gap:18px}
  .nav-link{padding:0 10px;font-size:14px}
  .hero-cols{grid-template-columns:minmax(0,1fr);gap:32px}
  .hero .container{padding-top:28px;padding-bottom:56px}
  .note-grid{grid-template-columns:minmax(0,1fr);gap:26px}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
}
@media (max-width:767px){
  :root{--sec:52px}
  .container{padding:0 16px}
  .nav{height:56px;gap:12px}
  .nav-links,.login-link{display:none}
  .hamburger{display:block}
  .brand-text{font-size:15px}
  .hero .container{padding-top:20px;padding-bottom:44px}
  .breadcrumb{margin-bottom:20px}
  .hero-lead{font-size:16px}
  .hero-actions{gap:12px}
  .hero-actions .btn{width:100%}
  .hero-stats{grid-template-columns:1fr}
  .stat-card{padding:18px}
  .section-head{margin-bottom:24px}
  .rank-list{margin-top:18px}
  .rank-item{
    grid-template-columns:40px minmax(0,1fr);
    grid-template-areas:"no body" "no thumb";
    row-gap:12px;column-gap:14px;padding:18px 10px;
  }
  .rank-no{grid-area:no;font-size:22px;padding-top:2px}
  .rank-body{grid-area:body}
  .rank-thumb{grid-area:thumb;width:100%;aspect-ratio:16/9}
  .rank-body h3{font-size:17px;margin-top:8px}
  .steps{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .footer-brand p{max-width:none}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .to-top{right:16px;bottom:20px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .brand-text{font-size:14px}
  .rank-no{-webkit-text-stroke-width:1px}
}