/* roulang page: index */
:root{
  --bg-0:#0A0C10;
  --bg-1:#10141B;
  --surface:#161B24;
  --surface-2:#1E2530;
  --line:#262E3B;
  --brand:#B6F135;
  --brand-hi:#C8FF4D;
  --brand-2:#7C5CFF;
  --warn:#FF7A45;
  --text-0:#EDF1F7;
  --text-1:#A7B0BF;
  --text-2:#6C7686;
  --r-card:18px;
  --r-img:14px;
  --r-input:12px;
  --r-btn:999px;
  --shadow-up:0 8px 24px rgba(182,241,53,.12);
  --gutter:24px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding-top:68px;
  background:var(--bg-0);
  color:var(--text-0);
  font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:16.5px;
  line-height:1.85;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--text-1);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:4px;}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;}
p{margin:0 0 1.2em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;box-shadow:0 0 0 4px rgba(182,241,53,.18);border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}

/* ============ 顶部导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;height:68px;
  background:rgba(10,12,16,.72);
  border-bottom:1px solid transparent;
  transition:background .25s ease,border-color .25s ease,backdrop-filter .25s ease;
}
.site-header.is-scrolled{
  background:rgba(10,12,16,.92);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom-color:var(--line);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:68px;}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--text-0);font-weight:800;font-size:16px;letter-spacing:-.01em;white-space:nowrap;}
.logo:hover{color:var(--text-0);text-decoration:none;}
.logo-mark{width:34px;height:34px;border-radius:11px;background:var(--brand);display:grid;place-items:center;color:#0A0C10;flex:none;}
.logo-mark svg{width:19px;height:19px;}
.nav-list{display:flex;align-items:center;gap:4px;}
.nav-link{position:relative;display:inline-block;padding:20px 13px;font-size:15px;color:var(--text-1);}
.nav-link::after{
  content:"";position:absolute;left:13px;right:13px;bottom:13px;height:2px;
  background:var(--brand);border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform .22s ease;
}
.nav-link:hover{color:var(--text-0);text-decoration:none;}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--text-0);}
.nav-actions{display:flex;align-items:center;gap:12px;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:var(--surface);align-items:center;justify-content:center;color:var(--text-0);
  transition:border-color .2s ease,color .2s ease;
}
.nav-toggle:hover{border-color:rgba(182,241,53,.4);color:var(--brand);}
.nav-toggle svg{width:20px;height:20px;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-btn);
  font-weight:700;font-size:15px;line-height:1;border:1px solid transparent;
  cursor:pointer;white-space:nowrap;
  transition:transform .2s ease,background .2s ease,border-color .2s ease,color .2s ease,box-shadow .2s ease;
}
.btn:hover{text-decoration:none;}
.btn svg{width:17px;height:17px;flex:none;}
.btn-primary{background:var(--brand);color:#0A0C10;}
.btn-primary:hover{background:var(--brand-hi);color:#0A0C10;transform:translateY(-2px);box-shadow:var(--shadow-up);}
.btn-primary:active{transform:translateY(-1px);}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text-0);}
.btn-ghost:hover{border-color:rgba(182,241,53,.4);color:var(--brand);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(-1px);}
.btn-sm{height:40px;padding:0 20px;font-size:14px;}
.btn-block{width:100%;}
.btn:disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none;}

/* ============ 通用板块 ============ */
.section{padding:96px 0;}
.section--alt{background:var(--bg-1);}
.section--tight{padding:72px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;}
.section-title{font-size:28px;font-weight:700;margin:0 0 8px;letter-spacing:-.015em;}
.section-desc{margin:0;font-size:15px;color:var(--text-1);max-width:660px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;margin-bottom:12px;
  font-size:12px;letter-spacing:.05em;color:var(--brand);
}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--brand);border-radius:2px;}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--text-1);white-space:nowrap;}
.link-more svg{width:15px;height:15px;}

/* ============ Hero ============ */
.hero{position:relative;overflow:hidden;padding:70px 0 92px;background:var(--bg-0);}
.hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  opacity:.22;
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(circle at 78% 16%,rgba(182,241,53,.16),transparent 56%),
    linear-gradient(180deg,rgba(10,12,16,.6),rgba(10,12,16,.98));
}
.hero-grid-lines{
  position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(to right,rgba(255,255,255,.04) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:radial-gradient(circle at 45% 40%,#000 10%,transparent 78%);
  mask-image:radial-gradient(circle at 45% 40%,#000 10%,transparent 78%);
}
.hero-inner{position:relative;display:grid;grid-template-columns:58% 42%;gap:48px;align-items:center;}
.hero-title{
  font-size:44px;line-height:1.15;font-weight:800;letter-spacing:-.02em;margin:0 0 18px;
}
.hero-title em{font-style:normal;color:var(--brand);}
.hero-sub{font-size:17px;color:var(--text-1);margin:0 0 30px;max-width:520px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px;}
.badge{
  display:inline-flex;align-items:center;gap:7px;padding:7px 15px;border-radius:999px;
  border:1px solid var(--line);background:rgba(22,27,36,.72);
  font-size:13px;color:var(--text-1);
}
.badge svg{width:14px;height:14px;color:var(--brand);flex:none;}
.hero-visual{position:relative;}
.hero-frame{
  position:relative;
  border-radius:20px;
  border:1px solid rgba(182,241,53,.35);
  box-shadow:0 0 46px rgba(182,241,53,.13);
  overflow:hidden;
  clip-path:polygon(0 0,100% 0,100% calc(100% - 36px),calc(100% - 36px) 100%,0 100%);
}
.hero-frame img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.hero-metrics{
  display:grid;grid-template-columns:repeat(3,1fr);
  margin-top:18px;background:var(--surface);border:1px solid var(--line);border-radius:14px;overflow:hidden;
}
.hero-metric{padding:14px 16px;border-right:1px solid var(--line);}
.hero-metric:last-child{border-right:0;}
.hero-metric strong{display:block;font-size:19px;font-weight:800;color:var(--brand);letter-spacing:-.01em;}
.hero-metric span{font-size:13px;color:var(--text-1);}

/* ============ 入口组 ============ */
.entry-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:8px;}
.entry-card{
  position:relative;display:block;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 24px;box-shadow:inset 0 1px 0 rgba(255,255,255,.04);
  transition:border-color .25s ease,transform .25s ease,box-shadow .25s ease;
}
.entry-card:hover{border-color:rgba(182,241,53,.4);transform:translateY(-2px);box-shadow:var(--shadow-up);text-decoration:none;}
.entry-card:hover .entry-title{color:var(--brand);}
.entry-icon{
  width:44px;height:44px;border-radius:13px;display:grid;place-items:center;
  background:rgba(182,241,53,.1);border:1px solid rgba(182,241,53,.26);color:var(--brand);
  margin-bottom:18px;
}
.entry-icon svg{width:21px;height:21px;}
.entry-title{display:block;font-size:19px;font-weight:600;color:var(--text-0);margin-bottom:8px;transition:color .2s ease;}
.entry-text{font-size:14.5px;color:var(--text-1);line-height:1.75;margin:0;}

/* ============ 三步上手 ============ */
.steps{position:relative;display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.steps::before{
  content:"";position:absolute;top:62px;left:14%;right:14%;
  border-top:2px dashed var(--line);z-index:0;
}
.step-card{
  position:relative;z-index:1;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:32px 26px;box-shadow:inset 0 1px 0 rgba(255,255,255,.04);
  transition:border-color .25s ease,transform .25s ease,box-shadow .25s ease;
}
.step-card:hover{border-color:rgba(182,241,53,.4);transform:translateY(-2px);box-shadow:var(--shadow-up);}
.step-num{
  display:block;font-size:52px;font-weight:800;line-height:1;margin-bottom:16px;
  color:transparent;-webkit-text-stroke:1.5px rgba(182,241,53,.6);letter-spacing:-.02em;
}
.step-card h3{font-size:20px;font-weight:600;margin:0 0 10px;}
.step-card p{margin:0;font-size:15px;color:var(--text-1);}

/* ============ 案例证明 ============ */
.proof-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;}
.proof-main{
  grid-column:span 7;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.04);
  transition:border-color .25s ease,transform .25s ease,box-shadow .25s ease;
}
.proof-main:hover{border-color:rgba(182,241,53,.4);transform:translateY(-2px);box-shadow:var(--shadow-up);}
.proof-main img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.proof-body{padding:26px 26px 28px;}
.proof-body h3{font-size:20px;font-weight:600;margin:0 0 10px;}
.proof-body p{margin:0;font-size:15px;color:var(--text-1);}
.proof-side{grid-column:span 5;display:grid;gap:24px;align-content:start;}
.proof-card{
  display:flex;gap:16px;align-items:flex-start;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px;box-shadow:inset 0 1px 0 rgba(255,255,255,.04);
  transition:border-color .25s ease,transform .25s ease,box-shadow .25s ease;
}
.proof-card:hover{border-color:rgba(182,241,53,.4);transform:translateY(-2px);box-shadow:var(--shadow-up);}
.proof-card img{width:92px;height:92px;border-radius:var(--r-img);object-fit:cover;flex:none;}
.proof-card h3{font-size:17px;font-weight:600;margin:0 0 6px;}
.proof-card p{margin:0;font-size:14px;color:var(--text-1);line-height:1.7;}
.metric-bar{
  display:grid;grid-template-columns:repeat(4,1fr);
  margin-top:32px;background:var(--bg-1);border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;
}
.metric{padding:26px 20px;text-align:center;border-right:1px solid var(--line);}
.metric:last-child{border-right:0;}
.metric strong{display:block;font-size:28px;font-weight:800;color:var(--brand);letter-spacing:-.02em;line-height:1.2;}
.metric span{display:block;font-size:13px;color:var(--text-1);margin-top:6px;}

/* ============ FAQ ============ */
.faq{max-width:820px;margin:0 auto;}
.faq-item{border-top:1px solid var(--line);}
.faq-item:last-child{border-bottom:1px solid var(--line);}
.faq-q{
  position:relative;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 8px 22px 18px;cursor:pointer;list-style:none;
  font-size:17px;font-weight:600;transition:color .2s ease;
}
.faq-q::-webkit-details-marker{display:none;}
.faq-q::before{
  content:"";position:absolute;left:0;top:20px;bottom:20px;width:3px;border-radius:2px;
  background:var(--brand);opacity:0;transition:opacity .2s ease;
}
.faq-q::after{
  content:"";width:11px;height:11px;flex:none;
  border-right:2px solid var(--text-2);border-bottom:2px solid var(--text-2);
  transform:rotate(45deg);transition:transform .25s ease,border-color .2s ease;
  margin-right:6px;
}
.faq-item[open] .faq-q::before{opacity:1;}
.faq-item[open] .faq-q{color:var(--brand);}
.faq-item[open] .faq-q::after{transform:rotate(-135deg);border-color:var(--brand);}
.faq-q:hover{color:var(--brand);}
.faq-a{padding:0 30px 24px 18px;font-size:15px;line-height:1.85;color:var(--text-1);}

/* ============ 最新信息列表 ============ */
.news-head-tools{display:flex;align-items:center;gap:12px;}
.filter-tags{display:flex;gap:8px;}
.tag{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:999px;
  border:1px solid var(--line);font-size:12px;letter-spacing:.05em;color:var(--text-2);
}
.tag.is-on{border-color:rgba(182,241,53,.45);color:var(--brand);}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:inset 0 1px 0 rgba(255,255,255,.04);
  transition:border-color .25s ease,transform .25s ease,box-shadow .25s ease;
}
.news-card:hover{border-color:rgba(182,241,53,.4);transform:translateY(-2px);box-shadow:var(--shadow-up);}
.news-card:hover .news-title{color:var(--brand);}
.news-link{display:block;color:inherit;}
.news-link:hover{text-decoration:none;color:inherit;}
.news-cover{aspect-ratio:16/9;background:var(--surface-2);overflow:hidden;}
.news-cover img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.news-card:hover .news-cover img{transform:scale(1.04);}
.news-cover-ph{display:grid;place-items:center;width:100%;height:100%;color:var(--brand);background:var(--surface-2);}
.news-cover-ph svg{width:38px;height:38px;opacity:.65;}
.news-body{padding:20px 20px 22px;}
.news-badge{
  display:inline-flex;align-items:center;height:24px;padding:0 11px;margin-bottom:12px;
  border-radius:999px;border:1px solid rgba(124,92,255,.55);color:#B9A8FF;
  font-size:12px;letter-spacing:.05em;
}
.news-title{
  font-size:17.5px;font-weight:600;color:var(--text-0);line-height:1.5;margin:0 0 10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color .2s ease;
}
.news-excerpt{
  margin:0 0 16px;font-size:14px;color:var(--text-1);line-height:1.72;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding-top:14px;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-2);
}
.news-arrow{color:var(--brand);font-size:15px;line-height:1;}
.news-empty{
  max-height:320px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:16px;padding:48px 24px;text-align:center;
  background:var(--bg-1);border:1px dashed var(--line);border-radius:var(--r-card);
}
.news-empty svg{width:52px;height:52px;color:var(--brand);opacity:.7;}
.news-empty p{margin:0;font-size:15px;color:var(--text-1);}

/* ============ 立即开通 CTA ============ */
.cta{position:relative;padding:96px 0;background:var(--bg-1);overflow:hidden;}
.cta::before{
  content:"";position:absolute;top:-160px;right:-120px;width:560px;height:560px;
  background:radial-gradient(circle,rgba(182,241,53,.16),transparent 62%);
  pointer-events:none;
}
.cta-inner{position:relative;display:grid;grid-template-columns:1fr 420px;gap:56px;align-items:start;}
.cta-copy h2{font-size:28px;font-weight:700;margin:0 0 14px;}
.cta-copy > p{font-size:15.5px;color:var(--text-1);max-width:520px;margin-bottom:26px;}
.point-list{display:grid;gap:16px;margin-bottom:30px;}
.point{display:flex;gap:12px;align-items:flex-start;}
.point-mark{
  width:24px;height:24px;border-radius:8px;flex:none;margin-top:5px;
  background:rgba(182,241,53,.12);border:1px solid rgba(182,241,53,.32);
  display:grid;place-items:center;color:var(--brand);
}
.point-mark svg{width:13px;height:13px;}
.point strong{display:block;font-size:16px;font-weight:600;}
.point span{font-size:14px;color:var(--text-1);}
.cta-card{
  width:100%;max-width:420px;justify-self:end;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px;box-shadow:inset 0 1px 0 rgba(255,255,255,.04);
}
.cta-card h3{font-size:19px;font-weight:600;margin:0 0 6px;}
.cta-card .card-note{font-size:13px;color:var(--text-2);margin:0 0 22px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13px;color:var(--text-1);margin-bottom:8px;}
.input,.select,.textarea{
  width:100%;height:48px;
  background:var(--surface-2);border:1px solid var(--line);border-radius:var(--r-input);
  padding:0 14px;color:var(--text-0);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.textarea{height:auto;min-height:104px;padding:12px 14px;resize:vertical;line-height:1.7;}
.input::placeholder,.textarea::placeholder{color:var(--text-2);}
.input:focus,.select:focus,.textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(182,241,53,.16);
}
.select{
  appearance:none;-webkit-appearance:none;padding-right:42px;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23A7B0BF' stroke-width='2' stroke-linecap='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center;background-size:18px;
}
.field.is-error .input,.field.is-error .select,.field.is-error .textarea{border-color:var(--warn);}
.field-error{display:none;margin-top:6px;font-size:13px;color:var(--warn);}
.field.is-error .field-error{display:block;}
.checkbox-row{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--text-1);line-height:1.7;}
.checkbox-row input{width:18px;height:18px;margin-top:3px;accent-color:var(--brand);flex:none;}
.form-success{display:none;text-align:center;padding:18px 0 8px;}
.form-success.is-visible{display:block;}
.form-success svg{width:54px;height:54px;color:var(--brand);margin:0 auto 16px;}
.form-success p{margin:0 0 14px;font-size:15px;color:var(--text-1);}
.form-success a{font-size:14px;color:var(--brand);}

/* ============ 页脚 ============ */
.site-footer{background:var(--bg-0);border-top:1px solid var(--line);padding:72px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:56px;}
.footer-brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:16px;color:var(--text-0);margin-bottom:16px;}
.footer-brand:hover{color:var(--text-0);text-decoration:none;}
.footer-desc{font-size:14px;color:var(--text-1);max-width:320px;margin:0 0 16px;}
.footer-kw{display:inline-flex;flex-wrap:wrap;gap:8px;}
.footer-kw span{
  display:inline-flex;align-items:center;height:26px;padding:0 11px;
  border-radius:999px;border:1px solid var(--line);
  font-size:12px;letter-spacing:.05em;color:var(--text-2);
}
.footer-col h4{font-size:15px;font-weight:600;color:var(--text-0);margin:0 0 18px;}
.footer-col ul{display:grid;gap:12px;}
.footer-col a{font-size:14px;color:var(--text-1);}
.footer-contact li{font-size:14px;color:var(--text-1);display:flex;gap:10px;align-items:flex-start;}
.footer-contact svg{width:15px;height:15px;color:var(--brand);margin-top:6px;flex:none;}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  padding:22px 0 28px;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-2);
}
.footer-bottom .to-top{display:inline-flex;align-items:center;gap:7px;font-size:13px;color:var(--text-1);}
.footer-bottom .to-top svg{width:14px;height:14px;}

/* ============ 移动端抽屉 ============ */
.drawer{
  position:fixed;inset:0;z-index:90;background:var(--bg-0);
  padding:18px 20px 32px;display:flex;flex-direction:column;
  transform:translateX(100%);transition:transform .3s ease;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-top{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-bottom:16px;border-bottom:1px solid var(--line);}
.drawer-close{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:var(--surface);display:grid;place-items:center;color:var(--text-0);
}
.drawer-close svg{width:19px;height:19px;}
.drawer-list{flex:1;padding-top:8px;}
.drawer-list a{
  display:flex;align-items:center;justify-content:space-between;
  height:56px;border-bottom:1px solid var(--line);
  font-size:16px;color:var(--text-0);
}
.drawer-list a:hover{color:var(--brand);text-decoration:none;}
.drawer-list a span{font-size:13px;color:var(--text-2);}
.drawer-foot{padding-top:24px;}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .hero-inner{gap:36px;}
  .cta-inner{gap:40px;}
}
@media (max-width:1023px){
  .container{padding:0 20px;}
  .nav-list,.nav-cta{display:none;}
  .nav-toggle{display:inline-flex;}
  .hero{padding:52px 0 68px;}
  .hero-inner{grid-template-columns:1fr;gap:40px;}
  .hero-title{font-size:36px;}
  .section{padding:72px 0;}
  .section--tight{padding:56px 0;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .steps::before{display:none;}
  .step-card:nth-child(3){grid-column:span 2;}
  .proof-grid{grid-template-columns:1fr;}
  .proof-main,.proof-side{grid-column:span 1;}
  .proof-side{grid-template-columns:repeat(2,1fr);}
  .metric-bar{grid-template-columns:repeat(2,1fr);}
  .metric:nth-child(2){border-right:0;}
  .metric:nth-child(-n+2){border-bottom:1px solid var(--line);}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .cta-inner{grid-template-columns:1fr;}
  .cta-card{max-width:100%;justify-self:stretch;}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:32px;}
  .entry-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:767px){
  body{font-size:16px;padding-top:60px;}
  .site-header,.nav-inner{height:60px;}
  .container{padding:0 16px;}
  .logo{font-size:14.5px;}
  .logo-mark{width:30px;height:30px;border-radius:10px;}
  .hero{padding:40px 0 56px;}
  .hero-title{font-size:30px;}
  .hero-sub{font-size:15.5px;}
  .hero-actions .btn{width:100%;}
  .section{padding:56px 0;}
  .section--tight{padding:48px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:28px;}
  .section-title{font-size:22px;}
  .steps{grid-template-columns:1fr;}
  .step-card:nth-child(3){grid-column:span 1;}
  .step-num{font-size:44px;}
  .proof-side{grid-template-columns:1fr;}
  .proof-card img{width:76px;height:76px;}
  .metric-bar{grid-template-columns:1fr;}
  .metric{border-right:0;border-bottom:1px solid var(--line);}
  .metric:last-child{border-bottom:0;}
  .news-grid{grid-template-columns:1fr;}
  .entry-grid{grid-template-columns:1fr;}
  .hero-metrics{grid-template-columns:1fr;}
  .hero-metric{border-right:0;border-bottom:1px solid var(--line);}
  .hero-metric:last-child{border-bottom:0;}
  .cta{padding:56px 0;}
  .cta-copy h2{font-size:22px;}
  .cta-card{padding:22px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:40px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:12px;}
  .faq-q{font-size:16px;padding:18px 6px 18px 16px;}
  .faq-a{padding:0 16px 20px 16px;}
}
@media (max-width:479px){
  .hero-title{font-size:27px;}
  .hero-frame{clip-path:none;}
  .section-title{font-size:20px;}
  .btn{height:46px;padding:0 20px;font-size:14.5px;}
  .news-body{padding:16px;}
  .cta-card{padding:18px;}
}

/* roulang page: article */
:root{
  --bg-0:#0A0C10;
  --bg-1:#10141B;
  --surface:#161B24;
  --surface-2:#1E2530;
  --line:#262E3B;
  --brand:#B6F135;
  --brand-hi:#C8FF4D;
  --brand-2:#7C5CFF;
  --warn:#FF7A45;
  --text-0:#EDF1F7;
  --text-1:#A7B0BF;
  --text-2:#6C7686;
  --radius-card:18px;
  --radius-img:14px;
  --radius-input:12px;
  --radius-pill:999px;
  --shadow-hover:0 8px 24px rgba(182,241,53,.12);
  --shadow-soft:0 18px 40px rgba(0,0,0,.35);
  --header-h:68px;
  --space-1:8px;
  --space-2:16px;
  --space-3:24px;
  --space-4:32px;
  --space-5:48px;
  --space-6:72px;
  --space-7:96px;
}
*,*::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-0);
  font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:16.5px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--text-1);text-decoration:none;transition:color .2s ease,opacity .2s ease;}
a:hover{color:var(--brand);text-underline-offset:4px;}
button,input,select,textarea{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;line-height:1.28;font-weight:700;letter-spacing:-.01em;}
p{margin:0 0 1.2em;}
svg{display:block;}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;box-shadow:0 0 0 4px rgba(182,241,53,.18);border-radius:6px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:var(--space-6) 0;}
.section-tight{padding:var(--space-5) 0;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:fixed;
  inset:0 0 auto 0;
  z-index:120;
  height:var(--header-h);
  background:rgba(10,12,16,.72);
  border-bottom:1px solid transparent;
  transition:background .25s ease,border-color .25s ease,backdrop-filter .25s ease;
}
.site-header.is-scrolled{
  background:rgba(10,12,16,.92);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom-color:var(--line);
}
.header-inner{
  height:var(--header-h);
  display:flex;
  align-items:center;
  gap:var(--space-3);
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--text-0);
  font-weight:800;
  font-size:16.5px;
  letter-spacing:-.01em;
  white-space:nowrap;
}
.brand:hover{color:var(--text-0);}
.logo-mark{
  width:34px;height:34px;
  flex:0 0 34px;
  display:grid;
  place-items:center;
  border-radius:11px;
  background:linear-gradient(150deg,var(--brand) 0%,#7FA51F 100%);
  color:#0A0C10;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.35);
}
.logo-mark svg{width:19px;height:19px;}
.brand-text{max-width:190px;overflow:hidden;text-overflow:ellipsis;}
.nav-list{
  display:flex;
  align-items:center;
  gap:6px;
  margin-left:auto;
}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:40px;
  padding:0 14px;
  border-radius:var(--radius-pill);
  font-size:15px;
  color:var(--text-1);
  white-space:nowrap;
}
.nav-link:hover{color:var(--brand);background:rgba(182,241,53,.06);}
.nav-link.is-active{color:var(--text-0);font-weight:600;}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:2px;
  transform:translateX(-50%);
  width:20px;
  height:2px;
  border-radius:2px;
  background:var(--brand);
}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:8px;}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  align-items:center;
  justify-content:center;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:12px;
  cursor:pointer;
}
.nav-toggle svg{width:20px;height:20px;stroke:var(--text-0);}
.nav-toggle:hover{border-color:rgba(182,241,53,.4);}

/* 移动端抽屉 */
.mobile-drawer{
  position:fixed;
  inset:0;
  z-index:130;
  display:none;
  flex-direction:column;
  background:rgba(10,12,16,.98);
  padding:20px;
}
.mobile-drawer.is-open{display:flex;}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-close{
  width:44px;height:44px;
  display:grid;place-items:center;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:12px;
  cursor:pointer;
}
.drawer-close svg{width:18px;height:18px;stroke:var(--text-0);}
.drawer-nav{display:flex;flex-direction:column;}
.drawer-nav a{
  display:flex;
  align-items:center;
  min-height:56px;
  padding:0 6px;
  font-size:16.5px;
  color:var(--text-1);
  border-bottom:1px solid var(--line);
}
.drawer-nav a.is-active{color:var(--brand);font-weight:600;}
.drawer-cta{margin-top:auto;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:46px;
  padding:0 24px;
  border-radius:var(--radius-pill);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  cursor:pointer;
  transition:transform .18s ease,background-color .18s ease,border-color .18s ease,box-shadow .18s ease,color .18s ease;
  white-space:nowrap;
}
.btn:active{transform:translateY(1px);}
.btn-primary{background:var(--brand);color:#0A0C10;}
.btn-primary:hover{background:var(--brand-hi);color:#0A0C10;box-shadow:var(--shadow-hover);transform:translateY(-2px);}
.btn-ghost{background:transparent;color:var(--text-0);border-color:var(--line);}
.btn-ghost:hover{color:var(--brand);border-color:rgba(182,241,53,.45);background:rgba(182,241,53,.06);transform:translateY(-2px);}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;}

/* ---------- 面包屑 ---------- */
.crumbs-wrap{
  padding-top:calc(var(--header-h) + 26px);
  background:
    radial-gradient(600px 260px at 12% 0%, rgba(182,241,53,.10), transparent 70%),
    linear-gradient(180deg,var(--bg-1) 0%,var(--bg-0) 100%);
  border-bottom:1px solid var(--line);
}
.crumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:var(--text-2);
  padding-bottom:22px;
}
.crumbs a{color:var(--text-1);font-size:14px;}
.crumbs a:hover{color:var(--brand);}
.crumbs .sep{color:var(--text-2);}
.crumbs .current{color:var(--text-1);max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- 文章头部 ---------- */
.article-head{padding:34px 0 40px;}
.article-head-inner{max-width:860px;}
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:28px;
  padding:0 12px;
  border-radius:var(--radius-pill);
  border:1px solid rgba(124,92,255,.5);
  background:rgba(124,92,255,.10);
  color:#B9A8FF;
  font-size:12px;
  letter-spacing:.05em;
}
.badge-brand{border-color:rgba(182,241,53,.45);background:rgba(182,241,53,.10);color:var(--brand);}
.article-head h1{
  margin:18px 0 16px;
  font-size:34px;
  line-height:1.3;
  font-weight:800;
  letter-spacing:-.02em;
}
.article-lead{
  color:var(--text-1);
  font-size:16px;
  max-width:760px;
  margin:0;
}
.article-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px 22px;
  margin-top:22px;
  font-size:14px;
  color:var(--text-2);
}
.article-meta .meta-item{display:inline-flex;align-items:center;gap:7px;}
.article-meta svg{width:15px;height:15px;stroke:var(--text-2);}
.meta-dot{width:4px;height:4px;border-radius:50%;background:var(--line);}

/* ---------- 正文 ---------- */
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,760px);
  justify-content:center;
  gap:var(--space-5);
  padding-bottom:var(--space-5);
}
.article-body{
  background:var(--bg-1);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.04);
  padding:40px;
}
.article-prose{font-size:16.5px;line-height:1.85;color:var(--text-0);}
.article-prose>*:first-child{margin-top:0;}
.article-prose h2{
  font-size:28px;
  line-height:1.35;
  margin:2em 0 .8em;
  padding-left:14px;
  border-left:4px solid var(--brand);
}
.article-prose h3{font-size:20px;margin:1.6em 0 .6em;}
.article-prose h4{font-size:17px;margin:1.4em 0 .5em;color:var(--text-1);}
.article-prose p{margin:0 0 1.2em;}
.article-prose ul,.article-prose ol{margin:0 0 1.2em;padding-left:0;}
.article-prose ul li,.article-prose ol li{position:relative;padding-left:22px;margin-bottom:.6em;}
.article-prose ul li::before{
  content:"";
  position:absolute;
  left:4px;
  top:.72em;
  width:7px;height:7px;
  border-radius:50%;
  background:var(--brand);
}
.article-prose ol{counter-reset:olc;}
.article-prose ol li::before{
  counter-increment:olc;
  content:counter(olc);
  position:absolute;
  left:0;
  top:0;
  color:var(--brand);
  font-weight:700;
  font-size:15px;
  line-height:1.9;
}
.article-prose blockquote{
  margin:1.6em 0;
  padding:18px 22px;
  background:var(--surface);
  border-left:3px solid var(--brand);
  border-radius:0 12px 12px 0;
  color:var(--text-1);
}
.article-prose blockquote p:last-child{margin-bottom:0;}
.article-prose a{color:var(--brand);text-decoration:underline;text-underline-offset:3px;}
.article-prose a:hover{color:var(--brand-hi);}
.article-prose img{border-radius:var(--radius-img);margin:1.6em auto;width:100%;height:auto;}
.article-prose figure{margin:1.6em 0;}
.article-prose figcaption{text-align:center;font-size:13px;color:var(--text-2);margin-top:10px;}
.article-prose strong{color:var(--text-0);font-weight:700;}
.article-prose code{
  background:var(--surface-2);
  border:1px solid var(--line);
  border-radius:6px;
  padding:2px 6px;
  font-size:14px;
  color:var(--brand);
}
.article-prose table{
  width:100%;
  border-collapse:collapse;
  margin:1.6em 0;
  font-size:15px;
  border:1px solid var(--line);
  border-radius:12px;
  overflow:hidden;
}
.article-prose th,.article-prose td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--line);}
.article-prose thead th{background:var(--surface);color:var(--brand);font-weight:600;}
.article-prose tbody tr:nth-child(odd){background:rgba(30,37,48,.45);}
.article-prose hr{border:0;border-top:1px solid var(--line);margin:2.4em 0;}

/* 空态 */
.empty-state{
  text-align:center;
  padding:56px 24px;
  border:1px dashed var(--line);
  border-radius:var(--radius-card);
  background:var(--surface);
}
.empty-state .empty-icon{
  width:64px;height:64px;
  margin:0 auto 18px;
  display:grid;place-items:center;
  border-radius:18px;
  background:var(--surface-2);
  color:var(--brand);
}
.empty-state .empty-icon svg{width:30px;height:30px;stroke:var(--brand);}
.empty-state h3{font-size:20px;margin-bottom:10px;}
.empty-state p{color:var(--text-1);margin-bottom:22px;}

/* 标签行 */
.tag-row{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  margin-top:28px;
  padding-top:24px;
  border-top:1px solid var(--line);
}
.tag-row .tag-label{font-size:13px;color:var(--text-2);letter-spacing:.05em;}
.tag{
  display:inline-flex;
  align-items:center;
  height:30px;
  padding:0 14px;
  border-radius:var(--radius-pill);
  background:var(--surface);
  border:1px solid var(--line);
  color:var(--text-1);
  font-size:13px;
  transition:border-color .2s ease,color .2s ease,transform .2s ease;
}
.tag:hover{color:var(--brand);border-color:rgba(182,241,53,.45);transform:translateY(-1px);}

/* 作者信息条 */
.author-bar{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  margin-top:22px;
  padding:18px 22px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
}
.author-info{display:flex;align-items:center;gap:14px;}
.avatar{
  width:44px;height:44px;
  border-radius:50%;
  display:grid;place-items:center;
  background:linear-gradient(150deg,var(--brand-2),#4B34B8);
  color:#fff;
  font-weight:700;
  font-size:15px;
}
.author-info strong{display:block;font-size:15px;color:var(--text-0);}
.author-info span{display:block;font-size:13px;color:var(--text-2);}
.author-bar .bar-note{font-size:13px;color:var(--text-2);}

/* ---------- 相关推荐 ---------- */
.related{padding:var(--space-6) 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px;}
.section-head h2{font-size:28px;}
.section-head .section-sub{margin:8px 0 0;color:var(--text-1);font-size:15px;}
.section-more{font-size:14px;color:var(--text-1);display:inline-flex;align-items:center;gap:6px;}
.section-more svg{width:14px;height:14px;stroke:currentColor;}
.card-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.card{
  display:flex;
  flex-direction:column;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.04);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
  height:100%;
}
.card:hover{transform:translateY(-2px);border-color:rgba(182,241,53,.4);box-shadow:var(--shadow-hover);}
.card-media{position:relative;aspect-ratio:16/9;background:var(--surface-2);overflow:hidden;}
.card-media img{width:100%;height:100%;object-fit:cover;}
.card-media .media-fallback{
  position:absolute;inset:0;
  display:grid;place-items:center;
  color:var(--brand);
  opacity:.5;
}
.card-media .media-fallback svg{width:38px;height:38px;stroke:currentColor;}
.card-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-cat{
  align-self:flex-start;
  height:26px;
  display:inline-flex;
  align-items:center;
  padding:0 11px;
  border-radius:var(--radius-pill);
  border:1px solid rgba(124,92,255,.5);
  background:rgba(124,92,255,.10);
  color:#B9A8FF;
  font-size:12px;
  letter-spacing:.05em;
}
.card-title{
  font-size:17px;
  font-weight:600;
  line-height:1.5;
  color:var(--text-0);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  transition:color .2s ease;
}
.card:hover .card-title{color:var(--brand);}
.card-excerpt{
  color:var(--text-1);
  font-size:14px;
  line-height:1.75;
  display:-webkit-box;
  -webkit-line-clamp:3;
  -webkit-box-orient:vertical;
  overflow:hidden;
  margin:0;
}
.card-foot{
  margin-top:auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding-top:14px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--text-2);
}
.card-foot .arrow{color:var(--brand);opacity:.5;transition:transform .2s ease,opacity .2s ease;}
.card:hover .card-foot .arrow{transform:translateX(3px);opacity:1;}

/* 返回栏目 */
.back-row{display:flex;justify-content:center;padding:0 0 var(--space-6);}

/* ---------- CTA 区 ---------- */
.cta-band{
  position:relative;
  overflow:hidden;
  background:var(--bg-1);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  padding:var(--space-6) 0;
}
.cta-band::before{
  content:"";
  position:absolute;
  width:620px;height:620px;
  right:-180px;top:-260px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(182,241,53,.17),transparent 68%);
  pointer-events:none;
}
.cta-inner{
  position:relative;
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:var(--space-5);
  align-items:center;
}
.cta-inner h2{font-size:28px;margin-bottom:16px;}
.cta-points{display:flex;flex-direction:column;gap:12px;margin:0 0 26px;}
.cta-points li{display:flex;gap:10px;align-items:flex-start;color:var(--text-1);font-size:15px;}
.cta-points svg{width:18px;height:18px;flex:0 0 18px;margin-top:4px;stroke:var(--brand);}
.cta-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:26px;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.04);
}
.cta-card h3{font-size:19px;margin-bottom:6px;}
.cta-card .form-hint{font-size:13.5px;color:var(--text-1);margin-bottom:18px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13.5px;color:var(--text-1);margin-bottom:8px;}
.field input,.field select,.field textarea{
  width:100%;
  height:48px;
  padding:0 14px;
  background:var(--surface-2);
  border:1px solid var(--line);
  border-radius:var(--radius-input);
  color:var(--text-0);
  font-size:15px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{height:104px;padding:12px 14px;line-height:1.7;resize:vertical;}
.field input::placeholder,.field textarea::placeholder{color:var(--text-2);}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;
  border-color:rgba(182,241,53,.5);
  box-shadow:0 0 0 3px rgba(182,241,53,.14);
}
.field.has-error input,.field.has-error select,.field.has-error textarea{border-color:var(--warn);}
.field .err{display:none;font-size:13px;color:var(--warn);margin-top:7px;}
.field.has-error .err{display:block;}
.check-line{display:flex;gap:10px;align-items:flex-start;font-size:13.5px;color:var(--text-1);margin:4px 0 18px;}
.check-line input{width:18px;height:18px;margin-top:3px;flex:0 0 18px;accent-color:var(--brand);}
.check-line.has-error{color:var(--warn);}
.form-success{display:none;text-align:center;padding:22px 6px;}
.form-success.is-visible{display:block;}
.form-success .ok{
  width:62px;height:62px;
  margin:0 auto 16px;
  border-radius:50%;
  display:grid;place-items:center;
  background:rgba(182,241,53,.12);
  border:1px solid rgba(182,241,53,.45);
}
.form-success .ok svg{width:28px;height:28px;stroke:var(--brand);}
.form-success strong{display:block;font-size:17px;margin-bottom:8px;}
.form-success p{color:var(--text-1);font-size:14px;margin-bottom:14px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg-0);border-top:1px solid var(--line);padding:var(--space-6) 0 0;margin-top:0;}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:var(--space-4);
  padding-bottom:var(--space-5);
}
.footer-brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--text-0);
  font-weight:800;
  font-size:16px;
  margin-bottom:14px;
}
.footer-brand:hover{color:var(--brand);}
.footer-desc{color:var(--text-1);font-size:14px;line-height:1.8;margin-bottom:16px;max-width:320px;}
.footer-kw{display:flex;flex-wrap:wrap;gap:8px;}
.footer-kw span{
  font-size:12px;
  letter-spacing:.05em;
  padding:5px 11px;
  border-radius:var(--radius-pill);
  border:1px solid var(--line);
  color:var(--text-2);
}
.footer-col h4{font-size:15px;margin-bottom:16px;color:var(--text-0);}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col ul a{font-size:14px;color:var(--text-1);}
.footer-col ul a:hover{color:var(--brand);}
.footer-contact li{display:flex;gap:9px;align-items:flex-start;font-size:14px;color:var(--text-1);}
.footer-contact svg{width:16px;height:16px;flex:0 0 16px;margin-top:5px;stroke:var(--text-2);}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:20px 0 26px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--text-2);
}
.to-top{display:inline-flex;align-items:center;gap:6px;color:var(--text-2);font-size:13px;}
.to-top:hover{color:var(--brand);}

/* ---------- 断点 ---------- */
@media (max-width:1280px){
  .article-layout{grid-template-columns:minmax(0,760px);}
}
@media (max-width:1023px){
  .container{padding:0 20px;}
  .nav-list,.header-actions .btn{display:none;}
  .nav-toggle{display:inline-flex;}
  .section{padding:56px 0;}
  .cta-inner{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .article-body{padding:32px;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .container{padding:0 16px;}
  .crumbs-wrap{padding-top:calc(var(--header-h) + 18px);}
  .article-head{padding:24px 0 30px;}
  .article-head h1{font-size:26px;}
  .article-body{padding:24px 18px;border-radius:16px;}
  .article-prose h2{font-size:22px;}
  .article-prose h3{font-size:18px;}
  .section{padding:48px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px;}
  .section-head h2{font-size:22px;}
  .card-grid{grid-template-columns:1fr;gap:18px;}
  .cta-card{padding:20px;}
  .cta-inner h2{font-size:22px;}
  .footer-grid{grid-template-columns:1fr;gap:0;}
  .footer-col{border-bottom:1px solid var(--line);padding:16px 0;}
  .footer-col:last-child{border-bottom:0;}
  .footer-col h4{margin-bottom:0;cursor:pointer;display:flex;justify-content:space-between;align-items:center;}
  .footer-col ul{max-height:0;overflow:hidden;transition:max-height .28s ease,padding .28s ease;padding:0;}
  .footer-col.is-open ul{max-height:460px;padding-top:14px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px;}
}
@media (max-width:480px){
  .article-head h1{font-size:23px;}
  .article-body{padding:20px 15px;}
  .btn{width:100%;}
  .back-row .btn{width:100%;}
  .author-bar{padding:16px;}
}

/* roulang page: category1 */
:root{
  --bg-0:#0A0C10;
  --bg-1:#10141B;
  --surface:#161B24;
  --surface-2:#1E2530;
  --line:#262E3B;
  --brand:#B6F135;
  --brand-hi:#C8FF4D;
  --brand-2:#7C5CFF;
  --warn:#FF7A45;
  --text-0:#EDF1F7;
  --text-1:#A7B0BF;
  --text-2:#6C7686;
  --radius-card:18px;
  --radius-img:14px;
  --radius-input:12px;
  --pill:999px;
  --shadow-hover:0 8px 24px rgba(182,241,53,.12);
  --inset-hi:inset 0 1px 0 rgba(255,255,255,.04);
  --sp-1:8px; --sp-2:16px; --sp-3:24px; --sp-4:32px;
  --sp-5:56px; --sp-6:72px; --sp-7:96px;
}
*,*::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-0);
  font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:16.5px;
  line-height:1.85;
  letter-spacing:.005em;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-style:none}
a{color:var(--text-1);text-decoration:none;transition:color .2s ease,text-underline-offset .2s ease}
a:hover{color:var(--brand);text-underline-offset:4px}
svg{display:block}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;box-shadow:0 0 0 4px rgba(182,241,53,.2);border-radius:8px}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.01em;line-height:1.28}
p{margin:0 0 1.2em}
p:last-child{margin-bottom:0}
::selection{background:rgba(182,241,53,.3);color:#0A0C10}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 var(--sp-3)}
@media (max-width:1023px){.container{padding:0 20px}}
@media (max-width:767px){.container{padding:0 16px}}

/* ---------- 头部导航 ---------- */
.site-header{
  position:fixed;inset:0 0 auto 0;z-index:60;
  background:rgba(10,12,16,.72);
  border-bottom:1px solid transparent;
  transition:background .25s ease,border-color .25s ease,backdrop-filter .25s ease;
}
.site-header.is-scrolled{
  background:rgba(10,12,16,.92);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom-color:var(--line);
}
.header-inner{height:68px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--text-0);font-weight:800;font-size:16px}
.brand:hover{color:var(--brand)}
.logo-mark{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  background:var(--surface-2);border:1px solid rgba(182,241,53,.35);color:var(--brand);
}
.logo-mark svg{width:18px;height:18px}
.brand-text{white-space:nowrap}
.nav-list{display:flex;align-items:center;gap:28px}
.nav-link{position:relative;font-size:15px;color:var(--text-1);padding:6px 0}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-3px;height:2px;border-radius:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.nav-link:hover{color:var(--text-0)}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--text-0)}
.header-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;background:var(--surface-2);
  border:1px solid var(--line);cursor:pointer;flex-direction:column;justify-content:center;
  align-items:center;gap:5px;padding:0;transition:border-color .2s ease;
}
.nav-toggle:hover{border-color:rgba(182,241,53,.4)}
.nav-toggle span{width:18px;height:2px;background:var(--text-0);border-radius:2px;transition:background .2s ease}
.nav-toggle:hover span{background:var(--brand)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--pill);border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;text-decoration:none;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .12s ease,box-shadow .2s ease;
}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--brand);color:#0A0C10}
.btn-primary:hover{background:var(--brand-hi);color:#0A0C10;box-shadow:var(--shadow-hover)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text-0)}
.btn-ghost:hover{border-color:rgba(182,241,53,.45);color:var(--brand)}
.btn-block{width:100%}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:var(--pill);
  font-size:12px;letter-spacing:.05em;line-height:1.6;
  border:1px solid rgba(124,92,255,.5);color:#C6B8FF;background:rgba(124,92,255,.12);
}
.badge-brand{border-color:rgba(182,241,53,.45);color:var(--brand);background:rgba(182,241,53,.1)}

/* ---------- 移动端抽屉 ---------- */
.drawer{
  position:fixed;inset:0;z-index:80;background:rgba(10,12,16,.98);
  display:flex;flex-direction:column;padding:0 20px;
  transform:translateX(100%);transition:transform .3s ease;visibility:hidden;
}
.drawer.is-open{transform:translateX(0);visibility:visible}
.drawer-head{height:68px;display:flex;align-items:center;justify-content:space-between}
.drawer-close{
  width:44px;height:44px;border-radius:12px;background:var(--surface-2);border:1px solid var(--line);
  color:var(--text-0);font-size:20px;line-height:1;cursor:pointer;transition:border-color .2s ease,color .2s ease;
}
.drawer-close:hover{border-color:rgba(182,241,53,.4);color:var(--brand)}
.drawer-links{display:flex;flex-direction:column;margin-top:8px}
.drawer-link{
  height:56px;display:flex;align-items:center;border-bottom:1px solid var(--line);
  color:var(--text-1);font-size:16px;
}
.drawer-link.is-active{color:var(--brand)}
.drawer-cta{margin-top:auto;padding:24px 0 32px}

/* ---------- 小 Hero ---------- */
.page-hero{position:relative;padding:150px 0 76px;background:var(--bg-1);overflow:hidden}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;
  opacity:.22;
}
.page-hero::after{
  content:"";position:absolute;inset:0;background-color:rgba(10,12,16,.78);
  background-image:radial-gradient(70% 70% at 82% 12%,rgba(182,241,53,.18),transparent 68%);
}
.hero-inner{position:relative;z-index:2;max-width:860px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--text-2);margin-bottom:22px}
.breadcrumb a{color:var(--text-1)}
.breadcrumb .sep{color:var(--text-2)}
.breadcrumb [aria-current="page"]{color:var(--text-0)}
.page-hero h1{font-size:40px;margin:18px 0 14px;letter-spacing:-.02em}
.hero-sub{font-size:17px;color:var(--text-1);margin:0 0 28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px}
.trust-row{
  list-style:none;display:flex;flex-wrap:wrap;gap:12px 22px;margin:0;padding:0;
}
.trust-row li{
  display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--text-1);
}
.trust-row li::before{
  content:"";width:6px;height:6px;border-radius:50%;background:var(--brand);flex:none;
}

/* ---------- 通用板块 ---------- */
.section{padding:var(--sp-6) 0}
.section-alt{background:var(--bg-1)}
.section-tight{padding:var(--sp-5) 0}
.section-head{max-width:780px;margin-bottom:40px}
.section-head h2{font-size:28px;margin-bottom:12px}
.section-head p{color:var(--text-1);font-size:16px;margin:0}

.intro-copy{max-width:820px}
.intro-copy h2{font-size:28px;margin-bottom:20px}
.intro-copy p{color:var(--text-1)}

.stat-strip{
  list-style:none;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  margin:44px 0 0;padding:0;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);box-shadow:var(--inset-hi);overflow:hidden;
}
.stat-strip li{padding:22px 24px;display:flex;flex-direction:column;gap:4px;border-left:1px solid var(--line)}
.stat-strip li:first-child{border-left:none}
.stat-strip strong{font-size:18px;color:var(--brand);letter-spacing:-.01em}
.stat-strip span{font-size:14px;color:var(--text-1)}

/* ---------- 2×3 卡片网 ---------- */
.grid-2x3{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.card{
  display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);box-shadow:var(--inset-hi);overflow:hidden;
  transition:border-color .22s ease,transform .22s ease,box-shadow .22s ease;
}
.card:hover{border-color:rgba(182,241,53,.4);transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.card-media{position:relative;aspect-ratio:16/9;background:var(--surface-2)}
.card-media img{width:100%;height:100%;object-fit:cover;border-radius:0}
.card-index{
  position:absolute;left:14px;top:14px;padding:4px 11px;border-radius:var(--pill);
  background:var(--brand);color:#0A0C10;font-size:13px;font-weight:800;letter-spacing:.04em;
}
.card-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1}
.card-title{font-size:20px;font-weight:700;line-height:1.45;transition:color .2s ease}
.card:hover .card-title{color:var(--brand)}
.card-body p{color:var(--text-1);font-size:15px;margin:0}
.points{list-style:none;margin:2px 0 0;padding:0;display:flex;flex-direction:column;gap:8px}
.points li{position:relative;padding-left:20px;font-size:14.5px;color:var(--text-1);line-height:1.75}
.points li::before{
  content:"";position:absolute;left:4px;top:.72em;width:6px;height:6px;border-radius:50%;background:var(--brand);
}
.text-link{
  display:inline-flex;align-items:center;gap:7px;color:var(--brand);font-size:14.5px;font-weight:600;
  text-decoration:underline;text-underline-offset:4px;margin-top:auto;
}
.text-link svg{width:15px;height:15px;transition:transform .2s ease}
.text-link:hover{color:var(--brand-hi)}
.text-link:hover svg{transform:translateX(3px)}

/* ---------- 自检清单 ---------- */
.checklist-wrap{display:grid;grid-template-columns:.9fr 1.1fr;gap:52px;align-items:start}
.checklist-copy h2{font-size:28px;margin-bottom:18px}
.checklist-copy p{color:var(--text-1)}
.checklist{list-style:none;margin:0;padding:0}
.checklist li{display:flex;gap:16px;padding:20px 0;border-top:1px solid var(--line)}
.checklist li:last-child{border-bottom:1px solid var(--line)}
.check-no{font-size:16px;font-weight:800;color:var(--brand);min-width:30px;line-height:1.6}
.checklist h3{font-size:17px;font-weight:600;margin-bottom:6px}
.checklist p{margin:0;font-size:14.5px;color:var(--text-1)}

/* ---------- 交叉链接 ---------- */
.cross-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.cross-card{
  display:grid;grid-template-columns:200px 1fr;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;
  box-shadow:var(--inset-hi);color:var(--text-0);
  transition:border-color .22s ease,transform .22s ease,box-shadow .22s ease;
}
.cross-card:hover{border-color:rgba(182,241,53,.4);transform:translateY(-2px);box-shadow:var(--shadow-hover);color:var(--text-0)}
.cross-media{position:relative;background:var(--surface-2)}
.cross-media img{width:100%;height:100%;object-fit:cover;min-height:100%}
.cross-body{padding:22px;display:flex;flex-direction:column;gap:10px}
.cross-body h3{font-size:19px;font-weight:700;line-height:1.45;transition:color .2s ease}
.cross-card:hover h3{color:var(--brand)}
.cross-body p{margin:0;font-size:14.5px;color:var(--text-1)}

/* ---------- 末屏 CTA ---------- */
.cta-section{position:relative;padding:88px 0;background:var(--bg-1);overflow:hidden}
.cta-section::before{
  content:"";position:absolute;inset:0;background-color:rgba(16,20,27,1);
  background-image:radial-gradient(60% 70% at 18% 26%,rgba(182,241,53,.16),transparent 70%);
}
.cta-wrap{position:relative;z-index:2;display:grid;grid-template-columns:1fr 420px;gap:52px;align-items:start}
.cta-copy h2{font-size:30px;margin-bottom:18px}
.cta-copy > p{color:var(--text-1)}
.cta-copy .points{margin-top:22px;gap:10px}
.cta-note{margin-top:24px;font-size:13.5px;color:var(--text-2)}

.form-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px;box-shadow:var(--inset-hi);
}
.form-card h3{font-size:20px;font-weight:700;margin-bottom:20px}
.field{display:flex;flex-direction:column;gap:8px;margin-bottom:16px}
.field label{font-size:14px;color:var(--text-1)}
.field input,.field select,.field textarea{
  width:100%;height:48px;background:var(--surface-2);border:1px solid var(--line);
  border-radius:var(--radius-input);padding:0 14px;color:var(--text-0);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{height:auto;min-height:104px;padding:12px 14px;resize:vertical;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:var(--text-2)}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:rgba(182,241,53,.55);box-shadow:0 0 0 3px rgba(182,241,53,.15);
}
.field.has-error input,.field.has-error select{border-color:var(--warn)}
.field-error{display:none;font-size:13px;color:var(--warn);line-height:1.6}
.field.has-error .field-error{display:block}
.form-agree-error{display:none;font-size:13px;color:var(--warn);margin:-10px 0 12px}
.checkbox-row{display:flex;align-items:flex-start;gap:10px;font-size:13.5px;color:var(--text-1);margin:4px 0 18px;line-height:1.7;cursor:pointer}
.checkbox-row input{width:18px;height:18px;margin-top:3px;accent-color:#B6F135;flex:none;cursor:pointer}
.form-success{display:none;text-align:center;padding:22px 6px}
.form-success.is-visible{display:block}
.form-success svg{width:52px;height:52px;margin:0 auto 16px;color:var(--brand)}
.form-success p{color:var(--text-1);font-size:15px;margin-bottom:16px}

/* ---------- 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:1.4fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{display:inline-flex;align-items:center;gap:10px;color:var(--text-0);font-weight:800;font-size:16px;margin-bottom:14px}
.footer-brand:hover{color:var(--brand)}
.footer-desc{color:var(--text-1);font-size:14.5px;line-height:1.8;margin:0;max-width:340px}
.footer-kw{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.footer-kw span{font-size:12px;letter-spacing:.05em;color:var(--text-2);border:1px solid var(--line);border-radius:var(--pill);padding:4px 10px}
.footer-col h4{font-size:15px;font-weight:700;color:var(--text-0);margin-bottom:16px}
.footer-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
.footer-col ul a{font-size:14.5px;color:var(--text-1)}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;font-size:14.5px;color:var(--text-1)}
.footer-contact svg{width:16px;height:16px;flex:none;margin-top:5px;color:var(--brand)}
.footer-bottom{
  margin-top:56px;border-top:1px solid var(--line);padding:22px 0 28px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  font-size:13.5px;color:var(--text-2);
}
.to-top{color:var(--text-1);font-size:13.5px}

/* ---------- 断点 ---------- */
@media (max-width:1279px){
  .page-hero h1{font-size:36px}
}
@media (max-width:1023px){
  .nav-list,.header-cta{display:none}
  .nav-toggle{display:flex}
  .page-hero{padding:130px 0 64px}
  .cta-wrap{grid-template-columns:1fr;gap:40px}
  .checklist-wrap{grid-template-columns:1fr;gap:36px}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
  .cross-card{grid-template-columns:170px 1fr}
  .section{padding:var(--sp-5) 0}
}
@media (max-width:767px){
  body{font-size:16px}
  .page-hero{padding:118px 0 56px}
  .page-hero h1{font-size:30px;margin:14px 0 12px}
  .hero-sub{font-size:15.5px;margin-bottom:22px}
  .hero-actions{gap:12px}
  .btn{height:46px;padding:0 20px}
  .section,.section-tight{padding:var(--sp-5) 0}
  .section-head{margin-bottom:28px}
  .section-head h2,.intro-copy h2,.checklist-copy h2{font-size:22px}
  .cta-copy h2{font-size:23px}
  .grid-2x3,.cross-grid{grid-template-columns:1fr}
  .card-body{padding:20px}
  .card-title{font-size:18px}
  .cross-card{grid-template-columns:1fr}
  .cross-media img{aspect-ratio:16/9}
  .stat-strip{grid-template-columns:1fr;margin-top:32px}
  .stat-strip li{border-left:none;border-top:1px solid var(--line)}
  .stat-strip li:first-child{border-top:none}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{margin-top:40px;flex-direction:column;align-items:flex-start}
  .form-card{padding:20px}
}
@media (max-width:480px){
  .page-hero h1{font-size:27px}
  .brand-text{font-size:15px}
  .logo-mark{width:30px;height:30px}
  .trust-row{flex-direction:column;gap:8px}
}

/* roulang page: category2 */
:root{
  --bg-0:#0A0C10;
  --bg-1:#10141B;
  --surface:#161B24;
  --surface-2:#1E2530;
  --line:#262E3B;
  --brand:#B6F135;
  --brand-hi:#C8FF4D;
  --brand-2:#7C5CFF;
  --warn:#FF7A45;
  --text-0:#EDF1F7;
  --text-1:#A7B0BF;
  --text-2:#6C7686;
  --radius-card:18px;
  --radius-img:14px;
  --radius-input:12px;
  --pill:999px;
  --shadow-hover:0 8px 24px rgba(182,241,53,.12);
  --font:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:92px}
body{
  margin:0;
  padding-top:68px;
  font-family:var(--font);
  font-size:16.5px;
  line-height:1.85;
  color:var(--text-0);
  background:var(--bg-0);
  overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto}
a{color:var(--text-1);text-decoration:none;transition:color .2s ease,text-decoration-color .2s ease}
a:hover{color:var(--brand);text-underline-offset:4px}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;box-shadow:0 0 0 4px rgba(182,241,53,.18)}
h1,h2,h3,h4{margin:0;line-height:1.25;letter-spacing:-.01em}
p{margin:0 0 1.2em}
p:last-child{margin-bottom:0}
ul,ol{margin:0 0 1.2em;padding-left:1.25em}
li{margin-bottom:.5em}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:50;
  background:rgba(10,12,16,.72);
  border-bottom:1px solid transparent;
  transition:background .25s ease,border-color .25s ease,backdrop-filter .25s ease;
}
.site-header.is-scrolled{
  background:rgba(10,12,16,.92);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom-color:var(--line);
}
.header-inner{height:68px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--text-0);font-weight:800;font-size:17px;letter-spacing:-.01em}
.logo:hover{color:var(--text-0)}
.logo-mark{
  width:32px;height:32px;flex:none;border-radius:10px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,rgba(182,241,53,.22),rgba(124,92,255,.22));
  border:1px solid rgba(182,241,53,.4);
  color:var(--brand);
}
.logo-mark svg{width:17px;height:17px}
.nav-list{display:flex;align-items:center;gap:4px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:68px;
  padding:0 14px;font-size:15px;color:var(--text-1);white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:16px;height:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;
  transition:transform .22s ease;
}
.nav-link:hover{color:var(--text-0)}
.nav-link.is-active{color:var(--text-0)}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-cta-mobile{display:none}
.header-cta{flex:none}
.menu-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:12px;
  background:var(--surface);border:1px solid var(--line);color:var(--text-0);
  transition:border-color .2s ease,color .2s ease;
}
.menu-toggle:hover{border-color:rgba(182,241,53,.4);color:var(--brand)}
.menu-toggle svg{width:20px;height:20px}

/* ---------- 按钮与徽章 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--pill);
  font-size:15px;font-weight:700;letter-spacing:.01em;
  border:1px solid transparent;text-decoration:none;
  transition:background .2s ease,border-color .2s ease,transform .15s ease,box-shadow .2s ease,color .2s ease;
}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--brand);color:#0A0C10}
.btn-primary:hover{background:var(--brand-hi);color:#0A0C10;box-shadow:var(--shadow-hover)}
.btn-ghost{background:transparent;color:var(--text-0);border-color:var(--line)}
.btn-ghost:hover{border-color:rgba(182,241,53,.55);color:var(--brand);box-shadow:var(--shadow-hover)}
.btn-sm{height:38px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--pill);
  font-size:12px;letter-spacing:.05em;color:var(--brand-2);
  background:rgba(124,92,255,.1);border:1px solid rgba(124,92,255,.42);
}
.badge-lime{color:var(--brand);background:rgba(182,241,53,.1);border-color:rgba(182,241,53,.4)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--text-2);
}

/* ---------- 内页首屏 ---------- */
.page-hero{
  position:relative;overflow:hidden;
  padding:64px 0 56px;
  background-color:var(--bg-1);
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
  opacity:.22;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(520px 260px at 12% 8%,rgba(182,241,53,.16),transparent 70%),
    linear-gradient(180deg,rgba(10,12,16,.55),rgba(10,12,16,.94));
}
.page-hero .container{position:relative;z-index:1}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--text-2);margin-bottom:20px}
.crumbs a{color:var(--text-1)}
.crumbs span.sep{color:var(--text-2)}
.crumbs .current{color:var(--text-0)}
.page-hero h1{
  font-size:38px;font-weight:800;letter-spacing:-.02em;line-height:1.18;
  max-width:820px;margin-bottom:14px;
}
.page-hero .hero-sub{font-size:17px;color:var(--text-1);max-width:640px;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:24px}
.hero-chips{display:flex;flex-wrap:wrap;gap:12px}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 15px;border-radius:var(--pill);
  font-size:13.5px;color:var(--text-1);
  background:var(--surface);border:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.04);
}
.chip svg{width:15px;height:15px;color:var(--brand);flex:none}

/* ---------- 导语 ---------- */
.lead-block{padding:56px 0 8px;background:var(--bg-0)}
.lead-inner{max-width:840px;margin:0 auto}
.lead-inner p{font-size:17px;color:var(--text-1);line-height:1.9}
.lead-inner strong{color:var(--text-0);font-weight:700}
.lead-note{
  margin-top:24px;padding:16px 20px;border-radius:var(--radius-card);
  background:var(--surface);border:1px solid var(--line);
  border-left:3px solid var(--brand);color:var(--text-1);font-size:15px;
}

/* ---------- 主体：左锚点 + 右长列表 ---------- */
.main-layout{padding:56px 0 72px;background:var(--bg-0)}
.c2-layout{display:grid;grid-template-columns:240px minmax(0,1fr);gap:48px;align-items:start}
.anchor-nav{position:sticky;top:96px;padding:20px 18px;border-radius:var(--radius-card);background:var(--bg-1);border:1px solid var(--line)}
.anchor-nav h2{font-size:13px;letter-spacing:.12em;color:var(--text-2);font-weight:700;margin-bottom:14px;text-transform:uppercase}
.anchor-nav ul{list-style:none;margin:0;padding:0}
.anchor-nav li{margin:0}
.anchor-link{
  display:flex;align-items:center;gap:10px;
  padding:10px 10px;border-radius:10px;font-size:14.5px;color:var(--text-1);
  border-left:2px solid transparent;
  transition:background .2s ease,color .2s ease,border-color .2s ease,padding-left .2s ease;
}
.anchor-link:hover{background:var(--surface);color:var(--brand);border-left-color:var(--brand);padding-left:14px}
.anchor-link .num{font-size:12px;color:var(--text-2);font-weight:700}
.anchor-tip{margin-top:16px;padding-top:16px;border-top:1px solid var(--line);font-size:13px;color:var(--text-2);line-height:1.7}

.content-stack{display:grid;gap:52px;min-width:0}
.panel{scroll-margin-top:96px}
.panel > p{color:var(--text-1);max-width:760px}
.panel h2{
  position:relative;font-size:26px;font-weight:700;padding-left:16px;
  margin-bottom:18px;
}
.panel h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;border-radius:2px;background:var(--brand);
}
.panel h3{font-size:19px;font-weight:600;margin-bottom:10px}

.info-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px;margin-top:22px}
.card{
  position:relative;padding:22px;border-radius:var(--radius-card);
  background:var(--surface);border:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.04);
  transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.card:hover{border-color:rgba(182,241,53,.4);transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.card p{color:var(--text-1);font-size:15px;margin:0}
.card .card-index{font-size:12px;letter-spacing:.1em;color:var(--text-2);font-weight:700;display:block;margin-bottom:8px}
.card h3{font-size:18px;margin-bottom:8px}
.card h3 + p{margin-top:0}

.figure{margin:24px 0 0;border-radius:var(--radius-img);overflow:hidden;border:1px solid var(--line);background:var(--surface-2)}
.figure img{width:100%;aspect-ratio:16/9;object-fit:cover}
.figure figcaption{padding:12px 16px;font-size:13px;color:var(--text-2);text-align:center;background:var(--bg-1);border-top:1px solid var(--line)}

.step-list{list-style:none;margin:22px 0 0;padding:0;counter-reset:step}
.step-list li{
  position:relative;padding:0 0 0 56px;margin-bottom:20px;
}
.step-list li::before{
  counter-increment:step;content:counter(step,decimal-leading-zero);
  position:absolute;left:0;top:2px;
  width:38px;height:38px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:800;color:var(--brand);
  background:var(--surface);border:1px solid rgba(182,241,53,.35);
}
.step-list li strong{display:block;color:var(--text-0);font-size:16px;margin-bottom:4px}
.step-list li span{color:var(--text-1);font-size:15px}

.plain-list{list-style:none;margin:22px 0 0;padding:0}
.plain-list li{
  position:relative;padding-left:22px;margin-bottom:14px;color:var(--text-1);font-size:15.5px;
}
.plain-list li::before{
  content:"";position:absolute;left:0;top:.72em;width:8px;height:8px;border-radius:50%;
  background:var(--brand);
}
.plain-list li strong{color:var(--text-0)}

.table-wrap{margin-top:22px;border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;overflow-x:auto}
table{width:100%;border-collapse:collapse;min-width:560px}
caption{caption-side:top;text-align:left;padding:14px 18px 4px;font-size:13px;color:var(--text-2)}
th,td{padding:14px 18px;text-align:left;font-size:14.5px;border-bottom:1px solid var(--line)}
th{color:var(--brand);font-weight:700;background:var(--bg-1);white-space:nowrap}
tbody tr:nth-child(odd){background:rgba(255,255,255,.018)}
tbody tr:last-child td{border-bottom:none}
td{color:var(--text-1)}

.link-inline{color:var(--brand);font-weight:600}
.link-inline:hover{color:var(--brand-hi);text-decoration:underline;text-underline-offset:3px}

/* ---------- FAQ ---------- */
.faq-section{padding:72px 0;background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:820px;margin:0 auto 32px;text-align:center}
.section-head h2{font-size:28px;font-weight:700;margin-bottom:12px}
.section-head p{color:var(--text-1);font-size:15.5px;margin:0}
.faq{max-width:820px;margin:0 auto;border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line);padding:6px 0}
.faq summary{
  list-style:none;cursor:pointer;position:relative;
  padding:18px 40px 18px 18px;font-size:17px;font-weight:600;color:var(--text-0);
  transition:color .2s ease,background .2s ease;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::before{
  content:"";position:absolute;left:0;top:20px;bottom:20px;width:3px;border-radius:2px;
  background:var(--brand);opacity:0;transition:opacity .2s ease;
}
.faq summary::after{
  content:"+";position:absolute;right:12px;top:50%;transform:translateY(-50%);
  color:var(--text-2);font-size:22px;font-weight:400;line-height:1;
}
.faq details[open] summary::before{opacity:1}
.faq details[open] summary::after{content:"–";color:var(--brand)}
.faq summary:hover{color:var(--brand)}
.faq .faq-body{padding:0 18px 20px;font-size:15px;color:var(--text-1);line-height:1.85;max-width:720px}

/* ---------- 交叉链接 ---------- */
.cross-section{padding:72px 0;background:var(--bg-0)}
.cross-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;margin-top:32px}
.cross-card{
  display:flex;gap:18px;align-items:flex-start;
  padding:20px;border-radius:var(--radius-card);
  background:var(--surface);border:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.04);
  transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.cross-card:hover{border-color:rgba(182,241,53,.4);transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.cross-card img{width:112px;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius-img);flex:none}
.cross-card h3{font-size:18px;margin-bottom:6px;color:var(--text-0)}
.cross-card p{font-size:14.5px;color:var(--text-1);margin:0 0 10px}
.cross-card .arrow{font-size:14px;color:var(--brand);font-weight:600}

/* ---------- 末屏 CTA ---------- */
.cta-section{
  position:relative;overflow:hidden;padding:80px 0;
  background:var(--bg-1);border-top:1px solid var(--line);
}
.cta-section::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(600px 320px at 78% 12%,rgba(182,241,53,.15),transparent 68%);
}
.cta-grid{position:relative;display:grid;grid-template-columns:minmax(0,1fr) 420px;gap:56px;align-items:start}
.cta-copy h2{font-size:30px;font-weight:700;margin-bottom:14px;line-height:1.25}
.cta-copy > p{color:var(--text-1);font-size:16px;max-width:520px}
.cta-points{list-style:none;margin:26px 0 0;padding:0}
.cta-points li{
  position:relative;padding-left:34px;margin-bottom:16px;color:var(--text-1);font-size:15.5px;
}
.cta-points li::before{
  content:"";position:absolute;left:0;top:.35em;width:18px;height:18px;border-radius:6px;
  background:rgba(182,241,53,.14);border:1px solid rgba(182,241,53,.5);
}
.cta-points li::after{
  content:"";position:absolute;left:6px;top:.72em;width:5px;height:9px;
  border-right:2px solid var(--brand);border-bottom:2px solid var(--brand);
  transform:rotate(45deg);
}
.form-card{
  width:100%;max-width:420px;padding:28px;border-radius:var(--radius-card);
  background:var(--surface);border:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.04);
}
.form-card h3{font-size:20px;margin-bottom:6px}
.form-card .form-hint{font-size:14px;color:var(--text-2);margin-bottom:20px}
.field{margin-bottom:16px}
.field label{display:block;font-size:14px;color:var(--text-1);margin-bottom:8px}
.field input,.field select,.field textarea{
  width:100%;height:48px;padding:0 14px;border-radius:var(--radius-input);
  background:var(--surface-2);border:1px solid var(--line);color:var(--text-0);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{height:104px;padding:12px 14px;resize:vertical;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:var(--text-2)}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--text-2) 50%),linear-gradient(135deg,var(--text-2) 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 15px) 21px;background-size:5px 5px,5px 5px;background-repeat:no-repeat}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:rgba(182,241,53,.6);box-shadow:0 0 0 3px rgba(182,241,53,.14)}
.field.has-error input,.field.has-error select,.field.has-error textarea{border-color:var(--warn)}
.err-msg{display:none;margin-top:6px;font-size:13px;color:var(--warn)}
.field.has-error .err-msg{display:block}
.check-field{display:flex;align-items:flex-start;gap:10px;margin:4px 0 20px}
.check-field input{width:18px;height:18px;margin-top:4px;flex:none;accent-color:var(--brand)}
.check-field label{font-size:13.5px;color:var(--text-1);line-height:1.7;margin:0}
.form-success{text-align:center;padding:18px 6px}
.form-success .tick{
  width:56px;height:56px;margin:0 auto 16px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:rgba(182,241,53,.14);border:1px solid rgba(182,241,53,.5);color:var(--brand);
}
.form-success .tick svg{width:26px;height:26px}
.form-success h3{font-size:19px;margin-bottom:10px}
.form-success p{font-size:14.5px;color:var(--text-1);margin-bottom:16px}
.form-success a{color:var(--brand);font-weight:600}

/* ---------- 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:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.footer-brand{display:inline-flex;align-items:center;gap:10px;color:var(--text-0);font-weight:800;font-size:17px;margin-bottom:14px}
.footer-brand:hover{color:var(--text-0)}
.footer-desc{color:var(--text-1);font-size:14.5px;line-height:1.8;margin-bottom:16px}
.footer-kw{display:flex;flex-wrap:wrap;gap:8px}
.footer-kw span{
  font-size:12px;letter-spacing:.05em;color:var(--text-1);
  padding:4px 10px;border-radius:var(--pill);background:var(--surface);border:1px solid var(--line);
}
.footer-col h4{font-size:15px;color:var(--text-0);margin-bottom:16px;font-weight:700}
.footer-col ul{list-style:none;margin:0;padding:0}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14.5px;color:var(--text-1)}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:var(--text-1)}
.footer-contact svg{width:16px;height:16px;flex:none;margin-top:6px;color:var(--brand)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px 24px;align-items:center;justify-content:space-between;
  padding:20px 0 28px;border-top:1px solid var(--line);
  font-size:13.5px;color:var(--text-2);
}
.to-top{color:var(--text-1);font-weight:600}
.to-top:hover{color:var(--brand)}

/* ---------- 响应式 ---------- */
@media (max-width:1280px){
  .c2-layout{grid-template-columns:220px minmax(0,1fr);gap:36px}
}
@media (max-width:1023px){
  .container{padding:0 20px}
  .header-cta{display:none}
  .menu-toggle{display:inline-flex}
  .nav-list{
    position:fixed;top:68px;left:0;right:0;
    height:calc(100vh - 68px);
    flex-direction:column;align-items:stretch;gap:0;
    padding:12px 20px 32px;background:var(--bg-0);
    overflow-y:auto;z-index:45;
    transform:translateY(-14px);opacity:0;visibility:hidden;
    transition:transform .25s ease,opacity .25s ease,visibility .25s ease;
  }
  body.nav-open .nav-list{transform:none;opacity:1;visibility:visible}
  body.nav-open{overflow:hidden}
  .nav-link{
    height:56px;padding:0 6px;font-size:17px;color:var(--text-0);
    border-bottom:1px solid var(--line);
  }
  .nav-link::after{display:none}
  .nav-link.is-active{color:var(--brand)}
  .nav-cta-mobile{
    display:inline-flex;align-items:center;justify-content:center;
    margin-top:24px;height:52px;border-radius:var(--pill);
    background:var(--brand);color:#0A0C10;font-weight:700;font-size:16px;
    border-bottom:none;
  }
  .nav-cta-mobile:hover{background:var(--brand-hi);color:#0A0C10}
  .page-hero{padding:52px 0 46px}
  .page-hero h1{font-size:32px}
  .c2-layout{grid-template-columns:minmax(0,1fr);gap:28px}
  .anchor-nav{position:static;padding:16px}
  .anchor-nav ul{display:flex;flex-wrap:wrap;gap:8px}
  .anchor-nav li{flex:1 1 180px}
  .anchor-link{border-left:none;border:1px solid var(--line);border-radius:10px;background:var(--surface)}
  .anchor-link:hover{padding-left:10px;border-color:rgba(182,241,53,.45)}
  .anchor-tip{display:none}
  .cta-grid{grid-template-columns:minmax(0,1fr);gap:36px}
  .form-card{max-width:100%}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
}
@media (max-width:767px){
  body{font-size:16px;padding-top:64px}
  .header-inner{height:64px}
  .nav-list{top:64px;height:calc(100vh - 64px)}
  .logo{font-size:16px}
  .page-hero{padding:40px 0 38px}
  .page-hero h1{font-size:28px}
  .page-hero .hero-sub{font-size:16px}
  .hero-actions{gap:10px}
  .hero-actions .btn{width:100%}
  .panel h2{font-size:22px}
  .section-head h2{font-size:23px}
  .cta-copy h2{font-size:24px}
  .cross-grid{grid-template-columns:minmax(0,1fr)}
  .cross-card img{width:92px}
  .info-cards{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:0}
  .footer-col{border-bottom:1px solid var(--line);padding:18px 0}
  .footer-col h4{margin-bottom:0;display:flex;justify-content:space-between;align-items:center}
  .footer-col h4::after{content:"+";color:var(--text-2);font-weight:400}
  .footer-col.is-open h4::after{content:"–";color:var(--brand)}
  .footer-col ul,.footer-col .footer-desc,.footer-col .footer-kw{display:none}
  .footer-col.is-open ul,.footer-col.is-open .footer-desc{display:block}
  .footer-col.is-open .footer-kw{display:flex}
  .footer-col .footer-desc{padding-top:12px}
  .footer-col ul{padding-top:12px}
  .footer-col .footer-kw{padding-top:12px}
  .footer-brand{margin-bottom:0}
  .footer-col:first-child .footer-brand{padding-bottom:12px}
  .step-list li{padding-left:48px}
  .cta-section{padding:56px 0}
  .faq-section,.cross-section,.main-layout,.lead-block{padding-top:44px;padding-bottom:44px}
}
@media (max-width:480px){
  .container{padding:0 16px}
  .page-hero h1{font-size:25px}
  .chip{font-size:13px;padding:8px 12px}
  .form-card{padding:22px 18px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: category3 */
:root{
  --bg-0:#0A0C10;
  --bg-1:#10141B;
  --surface:#161B24;
  --surface-2:#1E2530;
  --line:#262E3B;
  --brand:#B6F135;
  --brand-hi:#C8FF4D;
  --brand-2:#7C5CFF;
  --warn:#FF7A45;
  --text-0:#EDF1F7;
  --text-1:#A7B0BF;
  --text-2:#6C7686;

  --radius-card:18px;
  --radius-img:14px;
  --radius-input:12px;
  --radius-pill:999px;

  --container:1200px;
  --gutter:24px;
  --section-lg:96px;
  --section-md:72px;
  --section-sm:56px;

  --shadow-card:inset 0 1px 0 rgba(255,255,255,.04);
  --shadow-hover:0 8px 24px rgba(182,241,53,.12);
  --ease:.22s cubic-bezier(.4,0,.2,1);
}

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

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

body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-0);
  font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:16.5px;
  line-height:1.85;
  padding-top:68px;
  overflow-x:hidden;
}

img{max-width:100%;display:block;height:auto;}
a{color:var(--text-1);text-decoration:none;transition:color var(--ease),border-color var(--ease);}
a:hover{color:var(--brand);text-underline-offset:4px;}
button,input,select,textarea{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;box-shadow:0 0 0 4px rgba(182,241,53,.18);border-radius:6px;}

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

/* ---------- 顶部导航 ---------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:60;
  height:68px;
  background:rgba(10,12,16,.92);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:68px;
  gap:20px;
}
.logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:17px;
  font-weight:800;
  letter-spacing:-.01em;
  color:var(--text-0);
  white-space:nowrap;
}
.logo:hover{color:var(--text-0);}
.logo-mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:34px;height:34px;
  border-radius:11px;
  background:linear-gradient(150deg,var(--brand),#8FD316);
  color:#0A0C10;
  flex:0 0 auto;
}
.logo-mark svg{width:19px;height:19px;}

.nav-list{display:flex;align-items:center;gap:6px;}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:44px;
  padding:0 14px;
  font-size:15px;
  color:var(--text-1);
  border-radius:10px;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:4px;
  height:2px;
  background:var(--brand);
  border-radius:2px;
  transform:scaleX(0);
  transform-origin:left;
  transition:transform var(--ease);
}
.nav-link:hover{color:var(--text-0);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--text-0);}
.nav-link.is-active::after{transform:scaleX(1);}

.header-cta{margin-left:8px;}

.nav-toggle{
  display:none;
  width:44px;height:44px;
  align-items:center;
  justify-content:center;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:12px;
  color:var(--text-0);
  cursor:pointer;
}
.nav-toggle svg{width:20px;height:20px;}

.nav-drawer{
  position:fixed;
  inset:68px 0 0 0;
  z-index:55;
  background:var(--bg-0);
  border-top:1px solid var(--line);
  padding:16px var(--gutter) 104px;
  overflow-y:auto;
  transform:translateY(-8px);
  opacity:0;
  visibility:hidden;
  transition:opacity var(--ease),transform var(--ease),visibility var(--ease);
}
.nav-drawer.is-open{opacity:1;visibility:visible;transform:translateY(0);}
.nav-drawer a{
  display:flex;
  align-items:center;
  height:56px;
  padding:0 16px;
  font-size:16px;
  color:var(--text-0);
  border-bottom:1px solid var(--line);
}
.nav-drawer a.is-active{color:var(--brand);}
.drawer-foot{
  position:fixed;
  left:0;right:0;bottom:0;
  padding:14px var(--gutter) 20px;
  background:linear-gradient(180deg,rgba(10,12,16,0),var(--bg-0) 34%);
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:12px 24px;
  font-size:15px;
  font-weight:700;
  border-radius:var(--radius-pill);
  border:1px solid transparent;
  cursor:pointer;
  transition:background var(--ease),color var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.btn:active{transform:translateY(1px);}
.btn-primary{background:var(--brand);color:#0A0C10;}
.btn-primary:hover{background:var(--brand-hi);color:#0A0C10;box-shadow:var(--shadow-hover);}
.btn-ghost{background:transparent;color:var(--text-0);border-color:var(--line);}
.btn-ghost:hover{border-color:rgba(182,241,53,.4);color:var(--brand);}
.btn-block{width:100%;}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;}

.text-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:15px;
  font-weight:600;
  color:var(--brand);
  border-bottom:1px solid rgba(182,241,53,.35);
  padding-bottom:2px;
}
.text-link:hover{color:var(--brand-hi);border-color:var(--brand-hi);}

/* ---------- 通用板块 ---------- */
.section{padding:var(--section-lg) 0;}
.section-tight{padding:var(--section-sm) 0;}
.section-alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}

.section-head{max-width:720px;margin-bottom:40px;}
.section-head h2{
  font-size:28px;
  line-height:1.3;
  font-weight:700;
  letter-spacing:-.01em;
}
.section-head p{margin-top:14px;color:var(--text-1);font-size:16px;}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  letter-spacing:.05em;
  color:var(--brand);
  border:1px solid rgba(182,241,53,.32);
  border-radius:var(--radius-pill);
  padding:5px 12px;
  margin-bottom:16px;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--brand);}

.tag{
  display:inline-flex;
  align-items:center;
  font-size:12px;
  letter-spacing:.05em;
  padding:4px 11px;
  border-radius:var(--radius-pill);
  border:1px solid rgba(124,92,255,.45);
  color:#B9A8FF;
  background:rgba(124,92,255,.08);
}
.badge-brand{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  letter-spacing:.05em;
  padding:6px 13px;
  border-radius:var(--radius-pill);
  background:rgba(182,241,53,.12);
  border:1px solid rgba(182,241,53,.35);
  color:var(--brand);
}

/* ---------- 分类小 Hero ---------- */
.cat-hero{
  position:relative;
  overflow:hidden;
  border-bottom:1px solid var(--line);
  background:
    radial-gradient(720px 320px at 82% 12%,rgba(182,241,53,.16),rgba(182,241,53,0) 70%),
    url('/assets/images/backpic/back-3.png') center/cover no-repeat,
    var(--bg-1);
}
.cat-hero::before{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(10,12,16,.86),rgba(10,12,16,.94));
}
.cat-hero-inner{position:relative;padding:64px 0 60px;}
.crumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:var(--text-2);
  margin-bottom:20px;
}
.crumb a{color:var(--text-1);}
.crumb span.sep{color:var(--text-2);}
.crumb .current{color:var(--text-0);}
.cat-hero h1{
  font-size:38px;
  line-height:1.2;
  font-weight:800;
  letter-spacing:-.02em;
  max-width:820px;
}
.cat-hero .hero-sub{
  margin-top:16px;
  font-size:16px;
  color:var(--text-1);
  max-width:640px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-mini{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:26px;
}
.hero-mini span{
  display:inline-flex;
  align-items:center;
  gap:7px;
  font-size:13px;
  color:var(--text-1);
  background:rgba(22,27,36,.8);
  border:1px solid var(--line);
  border-radius:var(--radius-pill);
  padding:7px 14px;
}
.hero-mini svg{width:14px;height:14px;color:var(--brand);}

/* ---------- 导语 ---------- */
.lede-grid{
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:48px;
  align-items:start;
}
.lede-grid p{color:var(--text-1);}
.lede-grid p + p{margin-top:1.2em;}
.lede-side{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  padding:26px;
}
.lede-side h3{font-size:17px;font-weight:600;margin-bottom:14px;}
.check-list li{
  display:flex;
  gap:10px;
  padding:10px 0;
  border-bottom:1px dashed var(--line);
  font-size:15px;
  color:var(--text-1);
}
.check-list li:last-child{border-bottom:0;padding-bottom:0;}
.check-list svg{width:16px;height:16px;color:var(--brand);flex:0 0 auto;margin-top:5px;}

/* ---------- 选项卡 ---------- */
.tabs{position:relative;}
.tabs input[type="radio"]{
  position:absolute;
  width:1px;height:1px;
  opacity:0;
  pointer-events:none;
}
.tab-bar{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  padding:8px;
  background:var(--bg-1);
  border:1px solid var(--line);
  border-radius:var(--radius-pill);
  width:fit-content;
  max-width:100%;
  margin-bottom:32px;
}
.tab-label{
  display:inline-flex;
  align-items:center;
  gap:8px;
  min-height:44px;
  padding:10px 20px;
  border-radius:var(--radius-pill);
  font-size:15px;
  font-weight:600;
  color:var(--text-1);
  cursor:pointer;
  transition:background var(--ease),color var(--ease);
}
.tab-label:hover{color:var(--text-0);}
.tab-label .num{
  font-size:12px;
  letter-spacing:.05em;
  color:var(--text-2);
}
#tab-1:checked ~ .tab-bar .tab-label[for="tab-1"],
#tab-2:checked ~ .tab-bar .tab-label[for="tab-2"],
#tab-3:checked ~ .tab-bar .tab-label[for="tab-3"]{
  background:var(--brand);
  color:#0A0C10;
}
#tab-1:checked ~ .tab-bar .tab-label[for="tab-1"] .num,
#tab-2:checked ~ .tab-bar .tab-label[for="tab-2"] .num,
#tab-3:checked ~ .tab-bar .tab-label[for="tab-3"] .num{color:rgba(10,12,16,.6);}

.tab-panel{display:none;}
#tab-1:checked ~ .tab-panels #panel-1,
#tab-2:checked ~ .tab-panels #panel-2,
#tab-3:checked ~ .tab-panels #panel-3{display:grid;}

.tab-panels .stack-grid{
  grid-template-columns:repeat(3,1fr);
  gap:20px;
  align-items:stretch;
}
.cat-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  padding:24px;
  display:flex;
  flex-direction:column;
  gap:12px;
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.cat-card:hover{
  transform:translateY(-2px);
  border-color:rgba(182,241,53,.4);
  box-shadow:var(--shadow-hover);
}
.cat-card h3{font-size:19px;font-weight:600;line-height:1.4;}
.cat-card p{font-size:15px;color:var(--text-1);}
.cat-card .card-top{display:flex;align-items:center;justify-content:space-between;gap:12px;}
.cat-card .idx{
  font-size:13px;
  font-weight:800;
  letter-spacing:.05em;
  color:var(--brand);
}
.cat-card.wide{grid-column:span 2;}
.cat-card.tall{grid-row:span 2;}
.cat-card .card-media{
  border-radius:var(--radius-img);
  overflow:hidden;
  aspect-ratio:16/9;
  background:var(--surface-2);
  border:1px solid var(--line);
}
.cat-card .card-media img{width:100%;height:100%;object-fit:cover;}
.cat-card .card-foot{
  margin-top:auto;
  padding-top:14px;
  border-top:1px dashed var(--line);
  font-size:13px;
  color:var(--text-2);
  display:flex;
  align-items:center;
  gap:8px;
}
.cat-card .card-foot svg{width:14px;height:14px;color:var(--brand);}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:820px;margin:0 auto;}
.faq-item{border-top:1px solid var(--line);}
.faq-item:last-child{border-bottom:1px solid var(--line);}
.faq-item summary{
  position:relative;
  list-style:none;
  cursor:pointer;
  padding:22px 48px 22px 16px;
  font-size:17px;
  font-weight:600;
  color:var(--text-0);
  transition:color var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::before{
  content:"";
  position:absolute;
  left:0;top:22px;bottom:22px;
  width:3px;
  border-radius:3px;
  background:var(--brand);
  transform:scaleY(0);
  transform-origin:top;
  transition:transform var(--ease);
}
.faq-item summary::after{
  content:"";
  position:absolute;
  right:14px;top:29px;
  width:11px;height:11px;
  border-right:2px solid var(--text-2);
  border-bottom:2px solid var(--text-2);
  transform:rotate(45deg);
  transition:transform var(--ease),border-color var(--ease);
}
.faq-item[open] summary{color:var(--brand);}
.faq-item[open] summary::before{transform:scaleY(1);}
.faq-item[open] summary::after{transform:rotate(-135deg);border-color:var(--brand);}
.faq-item .faq-body{
  padding:0 48px 24px 16px;
  font-size:15px;
  color:var(--text-1);
}

/* ---------- 交叉链接 ---------- */
.cross-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:20px;
}
.cross-card{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:24px;
  border-radius:var(--radius-card);
  background:var(--bg-1);
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.cross-card:hover{transform:translateY(-2px);border-color:rgba(182,241,53,.4);box-shadow:var(--shadow-hover);}
.cross-card h3{font-size:18px;font-weight:600;color:var(--text-0);margin-bottom:6px;}
.cross-card p{font-size:14px;color:var(--text-1);}
.cross-card .arrow{
  flex:0 0 auto;
  width:40px;height:40px;
  display:flex;align-items:center;justify-content:center;
  border-radius:50%;
  border:1px solid var(--line);
  color:var(--brand);
}
.cross-card .arrow svg{width:16px;height:16px;}

/* ---------- 末屏 CTA ---------- */
.cta-band{
  position:relative;
  overflow:hidden;
  background:var(--bg-1);
  border-top:1px solid var(--line);
}
.cta-band::before{
  content:"";
  position:absolute;
  width:640px;height:640px;
  right:-160px;top:-220px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(182,241,53,.16),rgba(182,241,53,0) 68%);
  pointer-events:none;
}
.cta-grid{
  position:relative;
  display:grid;
  grid-template-columns:1fr 420px;
  gap:56px;
  align-items:start;
}
.cta-copy h2{font-size:30px;line-height:1.3;font-weight:700;letter-spacing:-.01em;}
.cta-copy p{margin-top:16px;color:var(--text-1);}
.point-list{margin-top:26px;display:grid;gap:14px;}
.point-list li{
  display:flex;
  gap:12px;
  align-items:flex-start;
  font-size:15px;
  color:var(--text-1);
}
.point-list svg{width:18px;height:18px;color:var(--brand);flex:0 0 auto;margin-top:5px;}

.form-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  padding:26px;
}
.form-card h3{font-size:19px;font-weight:600;margin-bottom:6px;}
.form-card .form-tip{font-size:14px;color:var(--text-2);margin-bottom:20px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:14px;color:var(--text-1);margin-bottom:8px;}
.field input,
.field select,
.field textarea{
  width:100%;
  min-height:48px;
  padding:12px 14px;
  background:var(--surface-2);
  border:1px solid var(--line);
  border-radius:var(--radius-input);
  color:var(--text-0);
  font-size:15px;
  transition:border-color var(--ease),background var(--ease);
}
.field textarea{min-height:104px;resize:vertical;line-height:1.7;}
.field input::placeholder,
.field textarea::placeholder{color:var(--text-2);}
.field input:focus,
.field select:focus,
.field textarea:focus{
  border-color:rgba(182,241,53,.6);
  background:#212936;
  outline:none;
}
.field.has-error input,
.field.has-error select,
.field.has-error textarea{border-color:var(--warn);}
.field .err{
  display:none;
  margin-top:7px;
  font-size:13px;
  color:var(--warn);
}
.field.has-error .err{display:block;}
.consent{
  display:flex;
  align-items:flex-start;
  gap:10px;
  font-size:13.5px;
  color:var(--text-1);
  margin:4px 0 18px;
}
.consent input{
  width:18px;height:18px;
  margin-top:4px;
  accent-color:var(--brand);
  flex:0 0 auto;
}
.form-success{
  display:none;
  text-align:center;
  padding:26px 8px;
}
.form-card.is-done form{display:none;}
.form-card.is-done .form-success{display:block;}
.form-success .ok{
  width:56px;height:56px;
  margin:0 auto 16px;
  border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:rgba(182,241,53,.14);
  border:1px solid rgba(182,241,53,.4);
  color:var(--brand);
}
.form-success .ok svg{width:24px;height:24px;}
.form-success p{font-size:15px;color:var(--text-1);margin-bottom:14px;}

/* ---------- 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:1.4fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:17px;
  font-weight:800;
  color:var(--text-0);
}
.footer-brand:hover{color:var(--text-0);}
.footer-desc{
  margin-top:14px;
  font-size:14.5px;
  color:var(--text-2);
  max-width:320px;
}
.footer-kw{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.footer-kw span{
  font-size:12px;
  letter-spacing:.05em;
  color:var(--text-1);
  border:1px solid var(--line);
  border-radius:var(--radius-pill);
  padding:4px 11px;
}
.footer-col h4{font-size:15px;font-weight:600;color:var(--text-0);margin-bottom:16px;}
.footer-col ul li{margin-bottom:11px;}
.footer-col ul li a{font-size:14.5px;color:var(--text-1);}
.footer-contact li{
  display:flex;
  gap:9px;
  align-items:flex-start;
  font-size:14.5px;
  color:var(--text-1);
  margin-bottom:12px;
}
.footer-contact svg{width:16px;height:16px;color:var(--brand);flex:0 0 auto;margin-top:5px;}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:20px 0 26px;
  border-top:1px solid var(--line);
  font-size:13.5px;
  color:var(--text-2);
}
.to-top{color:var(--text-1);}
.to-top:hover{color:var(--brand);}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  :root{--container:1120px;}
}

@media (max-width:1023px){
  :root{--gutter:20px;--section-lg:72px;--section-md:56px;--section-sm:48px;}
  .nav-list,.header-cta{display:none;}
  .nav-toggle{display:inline-flex;}
  .cat-hero h1{font-size:32px;}
  .cat-hero-inner{padding:52px 0 48px;}
  .lede-grid{grid-template-columns:1fr;gap:28px;}
  .tab-panels .stack-grid{grid-template-columns:repeat(2,1fr);}
  .cat-card.wide{grid-column:span 2;}
  .cat-card.tall{grid-row:span 1;}
  .cta-grid{grid-template-columns:1fr;gap:36px;}
  .form-card{max-width:480px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}

@media (max-width:768px){
  body{font-size:16px;}
  .section{padding:var(--section-md) 0;}
  .cat-hero h1{font-size:28px;}
  .section-head h2,
  .cta-copy h2{font-size:22px;}
  .cross-grid{grid-template-columns:1fr;}
  .tab-bar{width:100%;justify-content:flex-start;border-radius:18px;}
  .tab-label{flex:1 1 auto;justify-content:center;}
}

@media (max-width:520px){
  :root{--gutter:16px;--section-lg:56px;--section-md:48px;}
  .logo{font-size:15.5px;}
  .cat-hero h1{font-size:24px;}
  .hero-actions .btn{width:100%;}
  .tab-panels .stack-grid{grid-template-columns:1fr;}
  .cat-card.wide{grid-column:span 1;}
  .footer-grid{grid-template-columns:1fr;gap:8px;}
  .footer-col{border-bottom:1px solid var(--line);padding-bottom:8px;}
  .footer-col:last-child{border-bottom:0;}
  .footer-col h4{margin:14px 0 10px;}
  .form-card{padding:20px;}
  .faq-item summary{font-size:16px;padding-right:40px;}
}