/* roulang page: index */
/* ================= 设计变量 ================= */
:root{
  --c-bg:#0B0D14;
  --c-panel:#151A27;
  --c-panel2:#1D2333;
  --c-brand:#6C4BFF;
  --c-brand2:#FF3D9A;
  --c-gold:#FFC24B;
  --c-mint:#35E6C0;
  --c-grad:linear-gradient(135deg,#6C4BFF 0%,#FF3D9A 100%);
  --c-grad-gold:linear-gradient(135deg,#FFC24B 0%,#FF3D9A 100%);
  --c-text:#E8EBF5;
  --c-text2:#A7AEC4;
  --c-line:rgba(255,255,255,.08);
  --c-light:#F6F7FB;
  --c-ink:#1A1D26;
  --c-ink2:#5B6376;
  --c-line-light:#E6E9F2;
  --r-xs:8px;
  --r-sm:12px;
  --r-md:16px;
  --r-lg:20px;
  --r-xl:24px;
  --r-pill:999px;
  --sh-card:0 12px 32px rgba(4,6,14,.45);
  --sh-hover:0 18px 44px rgba(4,6,14,.55);
  --container:1200px;
  --nav-h:72px;
  --t:200ms ease;
}
/* ================= 基础 reset ================= */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;border:0;}
a{color:inherit;text-decoration:none;background-color:transparent;}
button{font:inherit;color:inherit;background:none;border:0;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p,figure{margin:0;}
p{line-height:1.8;}
table{border-collapse:collapse;}
input,textarea,select{font-family:inherit;}
:focus-visible{outline:2px solid var(--c-mint);outline-offset:3px;}
::selection{background:rgba(255,61,154,.35);color:#fff;}

/* ================= 容器与栅格修正 ================= */
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 32px;
}
.grid-x.grid-margin-x{margin-left:-14px;margin-right:-14px;}
.grid-x.grid-margin-x > .cell{padding-left:14px;padding-right:14px;}
.grid-x.grid-margin-y{margin-top:-14px;margin-bottom:-14px;}
.grid-x.grid-margin-y > .cell{padding-top:14px;padding-bottom:14px;}

/* ================= 顶部导航 ================= */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(11,13,20,.94);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--c-line);
}
.site-header::after{
  content:"";
  position:absolute;
  left:0;
  bottom:-1px;
  width:40%;
  height:1px;
  background:var(--c-grad);
  opacity:.9;
}
.nav-wrap{
  display:flex;
  align-items:center;
  gap:22px;
  height:var(--nav-h);
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
}
.brand-mark{
  width:34px;
  height:34px;
  border-radius:11px;
  background:var(--c-grad);
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:3px;
  padding:7px;
  box-shadow:0 6px 18px rgba(108,75,255,.45);
}
.brand-mark i{background:rgba(255,255,255,.9);border-radius:2px;display:block;}
.brand-text{
  font-size:16.5px;
  font-weight:700;
  letter-spacing:.01em;
  color:#fff;
  white-space:nowrap;
}
.brand-text em{font-style:normal;color:var(--c-mint);}
.main-nav{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:auto;
}
.nav-link{
  position:relative;
  display:block;
  padding:9px 15px;
  border-radius:var(--r-pill);
  font-size:15px;
  color:var(--c-text2);
  transition:color var(--t),background var(--t);
  white-space:nowrap;
}
.nav-link:hover{color:#fff;background:rgba(108,75,255,.14);}
.nav-link.is-active{color:#fff;background:rgba(108,75,255,.16);}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:15px;
  right:15px;
  bottom:1px;
  height:2px;
  border-radius:2px;
  background:var(--c-grad);
  box-shadow:0 0 10px rgba(255,61,154,.75);
}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  border-radius:12px;
  border:1px solid var(--c-line);
  background:rgba(255,255,255,.04);
  cursor:pointer;
  padding:0;
  align-items:center;
  justify-content:center;
  flex-direction:column;
  transition:border-color var(--t),background var(--t);
}
.nav-toggle span{
  display:block;
  width:18px;
  height:2px;
  border-radius:2px;
  background:var(--c-text);
  margin:2.5px 0;
  transition:transform var(--t),opacity var(--t);
}
.nav-toggle:hover{border-color:rgba(108,75,255,.6);}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ================= 按钮 ================= */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border:1px solid transparent;
  border-radius:var(--r-sm);
  padding:12px 22px;
  font-size:15px;
  font-weight:600;
  line-height:1.1;
  cursor:pointer;
  text-align:center;
  transition:transform var(--t),box-shadow var(--t),background var(--t),color var(--t),border-color var(--t),opacity var(--t);
}
.btn-primary{
  background:var(--c-grad);
  color:#fff;
  box-shadow:0 8px 24px rgba(108,75,255,.38);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 32px rgba(255,61,154,.45);color:#fff;}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{
  background:transparent;
  border-color:rgba(255,255,255,.24);
  color:var(--c-text);
}
.btn-ghost:hover{border-color:var(--c-mint);color:var(--c-mint);transform:translateY(-2px);box-shadow:0 0 0 1px rgba(53,230,192,.35);}
.btn-light{background:#fff;color:var(--c-ink);border-color:var(--c-line-light);}
.btn-light:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(20,26,50,.14);}
.btn-lg{padding:15px 30px;font-size:16px;border-radius:var(--r-sm);}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn-block{width:100%;}
.btn:focus-visible{outline:2px solid var(--c-mint);outline-offset:3px;}

/* ================= 标签 / 徽章 ================= */
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:12px;
  letter-spacing:.04em;
  padding:4px 12px;
  border-radius:var(--r-pill);
  color:var(--c-mint);
  background:rgba(53,230,192,.08);
  border:1px solid rgba(53,230,192,.32);
}
.tag-brand{
  color:#C9BBFF;
  background:rgba(108,75,255,.12);
  border-color:rgba(108,75,255,.38);
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:9px;
  font-size:12px;
  letter-spacing:.08em;
  color:var(--c-mint);
  margin-bottom:14px;
}
.eyebrow::before{
  content:"";
  width:22px;
  height:2px;
  border-radius:2px;
  background:var(--c-grad);
}
.section-light .eyebrow{color:var(--c-brand);}

/* ================= Hero ================= */
.hero{
  position:relative;
  overflow:hidden;
  padding:92px 0 76px;
  background:var(--c-bg);
}
.hero-bg{
  position:absolute;
  inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center right;
  opacity:.4;
}
.hero::before{
  content:"";
  position:absolute;
  inset:0;
  z-index:1;
  background:linear-gradient(100deg,#0B0D14 6%,rgba(11,13,20,.88) 42%,rgba(11,13,20,.44) 100%);
}
.hero::after{
  content:"";
  position:absolute;
  inset:0;
  z-index:1;
  pointer-events:none;
  background:
    radial-gradient(560px 380px at 78% 16%,rgba(108,75,255,.30),transparent 70%),
    radial-gradient(480px 340px at 94% 82%,rgba(255,61,154,.24),transparent 72%);
}
.hero-inner{position:relative;z-index:2;align-items:center;}
.hero-title{
  font-size:clamp(30px,4.4vw,52px);
  font-weight:700;
  line-height:1.2;
  letter-spacing:-.01em;
  margin-bottom:20px;
}
.hero-sub{
  font-size:18px;
  color:var(--c-text2);
  margin-bottom:28px;
  max-width:540px;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:24px;}
.hero-note{
  font-size:13.5px;
  line-height:1.75;
  color:var(--c-text2);
  opacity:.88;
  max-width:560px;
  padding-left:14px;
  border-left:2px solid rgba(108,75,255,.55);
}

/* 入口卡 */
.entry-card{
  position:relative;
  border-radius:var(--r-xl);
  padding:28px 26px 26px;
  background:linear-gradient(160deg,rgba(29,35,51,.96),rgba(21,26,39,.94));
  box-shadow:var(--sh-card);
}
.entry-card::before{
  content:"";
  position:absolute;
  inset:0;
  border-radius:var(--r-xl);
  padding:1px;
  background:var(--c-grad);
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;
  mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  mask-composite:exclude;
  pointer-events:none;
  opacity:.85;
}
.entry-card h2{font-size:19px;font-weight:700;margin-bottom:8px;}
.entry-card .entry-desc{font-size:14px;color:var(--c-text2);margin-bottom:18px;}
.entry-list{display:grid;gap:12px;margin-bottom:22px;}
.entry-list li{display:flex;gap:11px;align-items:flex-start;font-size:14.5px;color:var(--c-text);}
.entry-list .num{
  flex:0 0 22px;
  width:22px;
  height:22px;
  margin-top:3px;
  border-radius:50%;
  background:rgba(108,75,255,.2);
  color:var(--c-mint);
  font-size:12px;
  font-weight:700;
  display:grid;
  place-items:center;
  font-variant-numeric:tabular-nums;
}
.entry-foot{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  margin-top:16px;
  padding-top:16px;
  border-top:1px solid var(--c-line);
}
.mini-badge{
  display:inline-flex;
  align-items:baseline;
  gap:6px;
  font-size:13px;
  color:var(--c-text2);
}
.mini-badge b{
  font-size:22px;
  font-weight:700;
  font-variant-numeric:tabular-nums;
  background:var(--c-grad-gold);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.entry-foot span.linkish{font-size:13px;color:var(--c-mint);}

/* ================= 板块通用 ================= */
.section{padding:96px 0;position:relative;}
.section-dark{background:var(--c-bg);}
.section-panel{background:linear-gradient(180deg,#10131F 0%,#0B0D14 100%);}
.section-light{background:var(--c-light);color:var(--c-ink);}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:28px;
  flex-wrap:wrap;
  margin-bottom:46px;
}
.section-title{
  font-size:clamp(24px,3vw,36px);
  font-weight:700;
  line-height:1.28;
  letter-spacing:-.01em;
}
.section-desc{
  font-size:15px;
  color:var(--c-text2);
  margin-top:12px;
  max-width:660px;
}
.section-light .section-desc{color:var(--c-ink2);}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--c-brand);
  border-bottom:1px solid transparent;
  transition:color var(--t),border-color var(--t);
}
.text-link:hover{color:var(--c-brand2);border-color:var(--c-brand2);}

/* ================= 卡片通用 ================= */
.card{
  position:relative;
  background:rgba(255,255,255,.03);
  border:1px solid var(--c-line);
  border-radius:var(--r-xl);
  padding:28px;
  box-shadow:var(--sh-card);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
  height:100%;
}
.card:hover{
  transform:translateY(-4px);
  border-color:rgba(255,61,154,.34);
  box-shadow:var(--sh-hover),0 0 0 1px rgba(108,75,255,.3);
}
.card h3{font-size:20px;font-weight:700;line-height:1.4;margin-bottom:12px;}
.card p{font-size:15px;color:var(--c-text2);margin-bottom:16px;}
.card p:last-child{margin-bottom:0;}
.section-light .card{
  background:#fff;
  border-color:var(--c-line-light);
  box-shadow:0 10px 26px rgba(20,26,50,.07);
}
.section-light .card:hover{border-color:rgba(108,75,255,.4);box-shadow:0 18px 40px rgba(20,26,50,.13);}
.section-light .card h3{color:var(--c-ink);}
.section-light .card p{color:var(--c-ink2);}

.service-card{
  display:grid;
  grid-template-columns:1.08fr .92fr;
  gap:26px;
  align-items:center;
}
.service-media img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  border-radius:var(--r-md);
}
.wide-card{
  display:grid;
  grid-template-columns:280px 1fr;
  gap:30px;
  align-items:center;
}
.wide-card img{
  width:100%;
  aspect-ratio:16/11;
  object-fit:cover;
  border-radius:var(--r-md);
}
.tick-list{display:grid;gap:9px;margin-bottom:4px;}
.tick-list li{
  position:relative;
  padding-left:20px;
  font-size:14.5px;
  color:var(--c-text2);
}
.tick-list li::before{
  content:"";
  position:absolute;
  left:0;
  top:9px;
  width:8px;
  height:8px;
  border-radius:3px;
  background:var(--c-grad);
}
.section-light .tick-list li{color:var(--c-ink2);}

/* ================= 数据徽章条 ================= */
.stat-strip{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
}
.stat-badge{
  position:relative;
  border-radius:20px;
  padding:26px 24px;
  background:linear-gradient(160deg,rgba(108,75,255,.12),rgba(255,61,154,.06));
  transition:transform var(--t),box-shadow var(--t);
}
.stat-badge::before{
  content:"";
  position:absolute;
  inset:0;
  border-radius:20px;
  padding:1px;
  background:linear-gradient(135deg,rgba(108,75,255,.7),rgba(255,61,154,.55));
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;
  mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  mask-composite:exclude;
  pointer-events:none;
  opacity:.7;
}
.stat-badge:hover{transform:translateY(-4px);box-shadow:0 16px 36px rgba(4,6,14,.5);}
.stat-num{
  display:block;
  font-size:clamp(32px,4vw,40px);
  font-weight:700;
  line-height:1.05;
  font-variant-numeric:tabular-nums;
  background:var(--c-grad-gold);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.stat-num small{font-size:16px;font-weight:600;margin-left:2px;}
.stat-label{display:block;font-size:14px;color:var(--c-text2);margin-top:8px;}

/* ================= 使用场景（左右交替） ================= */
.case-row{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:40px;
  align-items:center;
  margin-bottom:56px;
}
.case-row:last-child{margin-bottom:0;}
.case-row--flip .case-text{order:2;}
.case-media img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
  border-radius:var(--r-xl);
  box-shadow:var(--sh-card);
}
.case-text h3{font-size:clamp(20px,2.2vw,26px);font-weight:700;line-height:1.4;margin-bottom:14px;}
.case-text p{font-size:15.5px;color:var(--c-text2);margin-bottom:16px;}
.case-points{display:grid;gap:10px;margin-bottom:18px;}
.case-points li{
  display:flex;
  gap:10px;
  align-items:flex-start;
  font-size:14.5px;
  color:var(--c-text2);
}
.case-points li::before{
  content:"";
  flex:0 0 6px;
  width:6px;
  height:6px;
  margin-top:9px;
  border-radius:50%;
  background:var(--c-mint);
  box-shadow:0 0 8px rgba(53,230,192,.8);
}

/* ================= 步骤条 ================= */
.step-list{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.step-item{
  background:linear-gradient(160deg,rgba(29,35,51,.92),rgba(21,26,39,.72));
  border:1px solid var(--c-line);
  border-radius:var(--r-xl);
  padding:30px 26px;
  transition:transform var(--t),border-color var(--t),box-shadow var(--t);
}
.step-item:hover{transform:translateY(-4px);border-color:rgba(108,75,255,.45);box-shadow:var(--sh-hover);}
.step-num{
  display:block;
  font-size:34px;
  font-weight:700;
  line-height:1;
  font-variant-numeric:tabular-nums;
  background:var(--c-grad);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
  margin-bottom:16px;
}
.step-item h3{font-size:19px;font-weight:700;margin-bottom:10px;}
.step-item p{font-size:14.5px;color:var(--c-text2);}

/* ================= 最新信息（CMS 列表） ================= */
.post-card{
  display:flex;
  flex-direction:column;
  height:100%;
  background:#fff;
  border:1px solid var(--c-line-light);
  border-radius:var(--r-lg);
  overflow:hidden;
  color:var(--c-ink);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.post-card:hover{
  transform:translateY(-4px);
  border-color:rgba(108,75,255,.38);
  box-shadow:0 18px 40px rgba(20,26,50,.14);
}
.post-cover{
  position:relative;
  aspect-ratio:16/9;
  overflow:hidden;
  background:#E6E9F2;
}
.post-cover img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform 420ms ease;
}
.post-card:hover .post-cover img{transform:scale(1.05);}
.post-body{
  padding:20px 22px 22px;
  display:flex;
  flex-direction:column;
  gap:10px;
  flex:1;
}
.post-tag{
  align-self:flex-start;
  font-size:12px;
  padding:4px 12px;
  border-radius:var(--r-pill);
  color:var(--c-brand);
  background:rgba(108,75,255,.1);
  border:1px solid rgba(108,75,255,.26);
}
.post-title{
  font-size:17px;
  font-weight:700;
  line-height:1.5;
  color:var(--c-ink);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.post-excerpt{
  font-size:14px;
  line-height:1.75;
  color:var(--c-ink2);
  display:-webkit-box;
  -webkit-line-clamp:3;
  -webkit-box-orient:vertical;
  overflow:hidden;
  margin:0;
}
.post-meta{
  margin-top:auto;
  padding-top:14px;
  border-top:1px solid var(--c-line-light);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  font-size:13px;
  color:var(--c-ink2);
}
.post-meta .post-arrow{color:var(--c-brand);font-weight:600;transition:transform var(--t);}
.post-card:hover .post-meta .post-arrow{transform:translateX(4px);}

/* ================= 空态 ================= */
.empty-state{
  background:#fff;
  border:1px dashed rgba(108,75,255,.4);
  border-radius:var(--r-xl);
  padding:44px 24px;
  text-align:center;
  max-height:320px;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:12px;
}
.empty-icon{
  width:46px;
  height:46px;
  border-radius:14px;
  background:linear-gradient(135deg,rgba(108,75,255,.16),rgba(255,61,154,.14));
  display:grid;
  place-items:center;
  color:var(--c-brand);
  font-size:20px;
  font-weight:700;
}
.empty-state p{font-size:15px;color:var(--c-ink2);margin:0;}

/* ================= FAQ ================= */
.faq-list{
  display:grid;
  gap:14px;
  max-width:880px;
  margin:0 auto;
}
.faq-item{
  background:rgba(255,255,255,.03);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  overflow:hidden;
  transition:border-color var(--t),box-shadow var(--t),background var(--t);
}
.faq-item.is-open{
  border-color:rgba(108,75,255,.5);
  background:rgba(108,75,255,.06);
  box-shadow:0 0 0 1px rgba(108,75,255,.22);
}
.faq-q{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  width:100%;
  padding:20px 24px;
  text-align:left;
  font-size:17px;
  font-weight:600;
  color:var(--c-text);
  cursor:pointer;
  transition:color var(--t);
}
.faq-q:hover{color:#fff;}
.faq-marker{
  flex:0 0 26px;
  width:26px;
  height:26px;
  border-radius:50%;
  border:1px solid rgba(108,75,255,.5);
  color:var(--c-brand2);
  display:grid;
  place-items:center;
  font-size:16px;
  line-height:1;
  transition:transform var(--t),background var(--t);
}
.faq-item.is-open .faq-marker{
  background:var(--c-grad);
  color:#fff;
  border-color:transparent;
  transform:rotate(45deg);
}
.faq-a{max-height:0;overflow:hidden;transition:max-height 280ms ease;}
.faq-a-inner{
  position:relative;
  padding:0 24px 22px 26px;
  font-size:15px;
  line-height:1.85;
  color:var(--c-text2);
}
.faq-item.is-open .faq-a-inner::before{
  content:"";
  position:absolute;
  left:12px;
  top:3px;
  bottom:24px;
  width:3px;
  border-radius:3px;
  background:var(--c-grad);
}

/* ================= 联系区 ================= */
.contact-grid{
  display:grid;
  grid-template-columns:1.12fr .88fr;
  gap:32px;
  align-items:start;
}
.contact-panel{
  background:linear-gradient(160deg,rgba(29,35,51,.95),rgba(16,20,31,.95));
  border:1px solid var(--c-line);
  border-radius:var(--r-xl);
  padding:30px 28px;
  box-shadow:var(--sh-card);
}
.form-field{margin-bottom:18px;}
.form-field label{
  display:block;
  font-size:14px;
  color:var(--c-text2);
  margin-bottom:8px;
}
.form-field input,
.form-field select,
.form-field textarea{
  width:100%;
  background:#10141F;
  border:1px solid var(--c-line);
  border-radius:var(--r-sm);
  padding:12px 14px;
  color:var(--c-text);
  font-size:15px;
  line-height:1.5;
  transition:border-color var(--t),box-shadow var(--t),background var(--t);
}
.form-field textarea{min-height:112px;resize:vertical;}
.form-field input::placeholder,
.form-field textarea::placeholder{color:#6A7288;}
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus{
  outline:none;
  border-color:var(--c-brand);
  box-shadow:0 0 0 3px rgba(108,75,255,.22);
  background:#121724;
}
.form-msg{font-size:14px;margin-top:12px;color:var(--c-mint);min-height:20px;}
.form-tip{font-size:13px;color:var(--c-text2);margin-top:10px;line-height:1.7;}
.info-list{display:grid;gap:16px;}
.info-item{
  display:flex;
  gap:14px;
  padding:16px 18px;
  border-radius:var(--r-md);
  background:rgba(255,255,255,.03);
  border:1px solid var(--c-line);
  transition:border-color var(--t),transform var(--t);
}
.info-item:hover{border-color:rgba(53,230,192,.42);transform:translateY(-2px);}
.info-item .idx{
  flex:0 0 30px;
  width:30px;
  height:30px;
  border-radius:10px;
  background:rgba(108,75,255,.18);
  color:#CFC4FF;
  font-size:13px;
  font-weight:700;
  display:grid;
  place-items:center;
}
.info-item h4{font-size:15px;font-weight:700;margin-bottom:4px;}
.info-item p{font-size:13.5px;color:var(--c-text2);margin:0;}

/* ================= CTA 条 ================= */
.cta-bar{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  flex-wrap:wrap;
  border-radius:var(--r-xl);
  padding:32px 34px;
  background:linear-gradient(135deg,rgba(108,75,255,.2),rgba(255,61,154,.14));
  border:1px solid rgba(108,75,255,.32);
}
.cta-bar h3{font-size:clamp(19px,2.2vw,24px);font-weight:700;margin-bottom:6px;}
.cta-bar p{font-size:14.5px;color:var(--c-text2);margin:0;}

/* ================= 页脚 ================= */
.site-footer{
  position:relative;
  background:#080A10;
  border-top:1px solid var(--c-line);
  padding:64px 0 26px;
}
.site-footer::before{
  content:"";
  position:absolute;
  top:-1px;
  left:0;
  width:40%;
  height:1px;
  background:var(--c-grad);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:36px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{width:30px;height:30px;padding:6px;border-radius:10px;}
.footer-brand span{font-size:16px;font-weight:700;color:#fff;}
.footer-desc{font-size:14px;color:var(--c-text2);line-height:1.85;max-width:340px;}
.footer-title{font-size:15px;font-weight:700;color:#fff;margin-bottom:18px;}
.footer-links a{
  display:block;
  font-size:14px;
  color:var(--c-text2);
  padding:6px 0;
  transition:color var(--t),transform var(--t);
}
.footer-links a:hover{color:var(--c-mint);transform:translateX(3px);}
.footer-bottom{
  margin-top:44px;
  padding-top:22px;
  border-top:1px solid var(--c-line);
  display:flex;
  justify-content:space-between;
  gap:14px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--c-text2);
}
.footer-bottom a{border-bottom:1px solid transparent;transition:color var(--t),border-color var(--t);}
.footer-bottom a:hover{color:var(--c-mint);border-color:var(--c-mint);}

/* ================= 滚动出现 ================= */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 520ms ease,transform 520ms ease;}
.reveal.is-in{opacity:1;transform:none;}

/* ================= 响应式 ================= */
@media (max-width:1199px){
  .brand-text{font-size:15.5px;}
  .nav-link{padding:9px 12px;font-size:14.5px;}
}
@media (max-width:1023px){
  .main-nav{
    position:fixed;
    top:var(--nav-h);
    left:0;
    right:0;
    height:calc(100vh - var(--nav-h));
    margin-left:0;
    flex-direction:column;
    align-items:stretch;
    gap:6px;
    padding:22px 20px 40px;
    background:rgba(11,13,20,.985);
    -webkit-backdrop-filter:blur(12px);
    backdrop-filter:blur(12px);
    border-top:1px solid rgba(108,75,255,.3);
    overflow-y:auto;
    opacity:0;
    transform:translateY(-12px);
    pointer-events:none;
    transition:opacity var(--t),transform var(--t);
  }
  .main-nav.is-open{opacity:1;transform:translateY(0);pointer-events:auto;}
  .nav-link{
    padding:15px 18px;
    font-size:16px;
    border-radius:14px;
    border-bottom:1px solid rgba(255,255,255,.06);
  }
  .nav-link.is-active::after{left:18px;right:auto;width:34px;bottom:6px;}
  .nav-toggle{display:inline-flex;}
  .nav-actions .btn{display:none;}
  .hero{padding:64px 0 56px;}
  .hero-sub{font-size:16.5px;}
  .section{padding:72px 0;}
  .service-card{grid-template-columns:1fr;}
  .wide-card{grid-template-columns:1fr;gap:22px;}
  .stat-strip{grid-template-columns:repeat(2,1fr);}
  .step-list{grid-template-columns:1fr;}
  .case-row{grid-template-columns:1fr;gap:22px;}
  .case-row--flip .case-text{order:0;}
  .contact-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:30px;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .section{padding:56px 0;}
  .hero{padding:48px 0 44px;}
  .hero-note{font-size:13px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:16px;margin-bottom:32px;}
  .section-desc{font-size:14.5px;}
  .stat-strip{grid-template-columns:1fr;gap:14px;}
  .card{padding:22px;}
  .entry-card{padding:24px 20px;}
  .faq-q{font-size:16px;padding:18px 18px;}
  .faq-a-inner{padding:0 18px 20px 22px;}
  .faq-item.is-open .faq-a-inner::before{left:8px;}
  .contact-panel{padding:24px 20px;}
  .cta-bar{padding:26px 22px;flex-direction:column;align-items:flex-start;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .brand-text{font-size:15px;}
}
@media (max-width:400px){
  .brand-text{font-size:14px;}
  .btn{padding:11px 18px;font-size:14.5px;}
  .hero-cta{flex-direction:column;align-items:stretch;}
  .hero-cta .btn{width:100%;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition-duration:.01ms!important;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: article */
:root{
  --bg-deep:#0B0D14;
  --panel:#151A27;
  --panel-2:#1D2333;
  --brand:#6C4BFF;
  --brand-2:#FF3D9A;
  --gold:#FFC24B;
  --mint:#35E6C0;
  --light:#F6F7FB;
  --ink:#1A1D26;
  --ink-sub:#5B6376;
  --line:#E6E9F2;
  --text:#E8EBF5;
  --text-sub:#A7AEC4;
  --stroke:rgba(255,255,255,.08);
  --grad:linear-gradient(135deg,#6C4BFF 0%,#FF3D9A 100%);
  --grad-line:linear-gradient(90deg,#6C4BFF 0%,#FF3D9A 100%);
  --r-lg:24px;
  --r-md:18px;
  --r-sm:12px;
  --shadow-dark:0 12px 32px rgba(4,6,14,.45);
  --shadow-light:0 8px 24px rgba(26,29,38,.08);
  --container:1200px;
  --ease:.19s ease;
}
*,*::before,*::after{box-sizing:border-box;}
html,body{margin:0;padding:0;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  background:var(--bg-deep);
  color:var(--text);
  line-height:1.75;
  font-size:16px;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;transition:color var(--ease),border-color var(--ease),background-color var(--ease);}
button{font-family:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px;}
.num{font-variant-numeric:tabular-nums;}
.grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;}
:focus-visible{outline:2px solid var(--mint);outline-offset:2px;border-radius:6px;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(11,13,20,.94);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--stroke);
}
.site-header::after{
  content:"";display:block;height:1px;width:40%;
  background:var(--grad-line);opacity:.85;
}
.nav-wrap{display:flex;align-items:center;gap:26px;height:72px;}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.brand-mark{
  width:32px;height:32px;display:grid;grid-template-columns:1fr 1fr;gap:3px;
  padding:3px;border-radius:9px;background:rgba(108,75,255,.14);
  border:1px solid rgba(108,75,255,.35);
}
.brand-mark i{display:block;background:var(--grad);border-radius:3px;}
.brand-mark i:nth-child(3){background:linear-gradient(135deg,#FF3D9A 0%,#FFC24B 100%);}
.brand-text{font-size:17px;font-weight:700;letter-spacing:.01em;color:#fff;white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-link{
  position:relative;padding:8px 14px;border-radius:999px;
  font-size:15px;color:var(--text-sub);white-space:nowrap;
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.05);}
.nav-link.is-active{color:#fff;background:rgba(108,75,255,.16);text-shadow:0 0 12px rgba(108,75,255,.55);}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:-2px;height:2px;
  border-radius:2px;background:var(--grad-line);
}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  background:rgba(255,255,255,.05);border:1px solid var(--stroke);
  cursor:pointer;padding:0;flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:#fff;transition:var(--ease);}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--r-sm);border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;transition:all var(--ease);
  text-align:center;line-height:1.2;
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 8px 24px rgba(108,75,255,.35);}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.08);box-shadow:0 12px 30px rgba(255,61,154,.35);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(108,75,255,.6);}
.btn-ghost:hover{border-color:var(--mint);color:var(--mint);transform:translateY(-2px);}
.btn-light{background:#fff;color:var(--brand);border-color:rgba(108,75,255,.25);}
.btn-light:hover{transform:translateY(-2px);box-shadow:0 10px 26px rgba(108,75,255,.22);}
.btn-sm{padding:9px 18px;font-size:14px;border-radius:10px;}

/* ============ 文章头部 ============ */
.article-hero{
  position:relative;overflow:hidden;
  padding:44px 0 76px;
  background-color:var(--bg-deep);
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
}
.article-hero::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(600px 320px at 82% 18%,rgba(255,61,154,.22),transparent 70%),
    radial-gradient(520px 320px at 6% 90%,rgba(108,75,255,.28),transparent 70%),
    linear-gradient(100deg,rgba(11,13,20,.96) 0%,rgba(11,13,20,.84) 46%,rgba(11,13,20,.52) 100%);
}
.article-hero .container{position:relative;z-index:2;}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--text-sub);margin-bottom:22px;
}
.breadcrumb a{color:var(--text-sub);}
.breadcrumb a:hover{color:var(--mint);}
.breadcrumb .sep{color:rgba(255,255,255,.28);}
.breadcrumb .current{color:var(--mint);max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.article-head{max-width:900px;}
.article-eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.08em;
  color:var(--mint);text-transform:uppercase;margin-bottom:16px;
}
.article-eyebrow::before{content:"";width:26px;height:2px;border-radius:2px;background:var(--grad-line);}
h1.article-title{
  font-size:clamp(28px,3.6vw,44px);font-weight:700;line-height:1.22;color:#fff;
  letter-spacing:.005em;
}
.post-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;
  margin-top:24px;font-size:14px;color:var(--text-sub);
}
.post-meta .meta-item{display:inline-flex;align-items:center;gap:7px;}
.post-meta .dot{width:6px;height:6px;border-radius:50%;background:var(--grad);}
.post-meta a{color:var(--mint);}
.post-meta a:hover{text-decoration:underline;}
.hero-hint{
  margin-top:26px;font-size:13px;color:rgba(167,174,196,.9);line-height:1.7;
  max-width:760px;padding-top:18px;border-top:1px solid var(--stroke);
}

/* ============ 正文主体 ============ */
.article-main{background:var(--light);color:var(--ink);padding:64px 0 88px;}
.article-grid{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:40px;align-items:start;}
@media (max-width:1200px){.article-grid{grid-template-columns:minmax(0,1fr) 300px;gap:28px;}}
@media (max-width:1023px){.article-grid{grid-template-columns:1fr;gap:32px;}}

.prose-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:44px 48px;box-shadow:var(--shadow-light);
}
@media (max-width:640px){.prose-card{padding:26px 20px;border-radius:var(--r-md);}}
.prose{font-size:17px;line-height:1.9;color:var(--ink);word-break:break-word;}
.prose h2{
  position:relative;font-size:24px;font-weight:700;line-height:1.4;color:var(--ink);
  margin:40px 0 18px;padding-left:16px;scroll-margin-top:96px;
}
.prose h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:3px;
  border-radius:3px;background:var(--grad-line);
}
.prose h2:first-child{margin-top:0;}
.prose h3{
  position:relative;font-size:20px;font-weight:600;line-height:1.5;color:var(--ink);
  margin:30px 0 12px;padding-left:16px;scroll-margin-top:96px;
}
.prose h3::before{
  content:"";position:absolute;left:0;top:.68em;width:10px;height:3px;
  border-radius:2px;background:var(--grad-line);
}
.prose h4{font-size:17px;font-weight:600;margin:22px 0 10px;color:var(--ink);}
.prose p{margin:0 0 20px;color:#242836;}
.prose strong{color:#111521;}
.prose a{color:#5a37f0;border-bottom:1px solid rgba(108,75,255,.35);}
.prose a:hover{color:#3f21c9;border-bottom-color:#3f21c9;}
.prose ul,.prose ol{margin:0 0 22px;padding:0;}
.prose li{position:relative;padding-left:24px;margin-bottom:10px;color:#242836;}
.prose ul li::before{
  content:"";position:absolute;left:2px;top:.72em;width:7px;height:7px;
  border-radius:50%;background:var(--grad);
}
.prose ol{counter-reset:prose-li;}
.prose ol li{counter-increment:prose-li;}
.prose ol li::before{
  content:counter(prose-li);position:absolute;left:0;top:.34em;
  width:18px;height:18px;border-radius:50%;background:rgba(108,75,255,.12);
  color:#5a37f0;font-size:12px;font-weight:700;line-height:18px;text-align:center;
}
.prose blockquote{
  margin:0 0 24px;padding:18px 24px;border-left:3px solid var(--brand);
  background:rgba(108,75,255,.06);border-radius:0 14px 14px 0;color:#3a3f52;
}
.prose blockquote p:last-child{margin-bottom:0;}
.prose img{border-radius:16px;margin:26px auto;width:100%;object-fit:cover;}
.prose figure{margin:26px 0;}
.prose figcaption{font-size:13px;color:var(--ink-sub);text-align:center;margin-top:10px;}
.prose table{
  width:100%;border-collapse:collapse;margin:0 0 26px;font-size:15px;
  border:1px solid var(--line);border-radius:12px;overflow:hidden;
}
.prose th,.prose td{border:1px solid var(--line);padding:11px 14px;text-align:left;color:#242836;}
.prose th{background:#f0f2f8;font-weight:600;color:var(--ink);}
.prose hr{border:0;height:1px;background:var(--line);margin:32px 0;}
.prose code{
  background:#f0f2f8;border-radius:6px;padding:2px 7px;font-size:14px;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;color:#4a2fd0;
}

/* 空态 */
.empty-state{
  text-align:center;padding:56px 20px;max-width:520px;margin:0 auto;
}
.empty-icon{
  width:64px;height:64px;margin:0 auto 20px;border-radius:20px;
  background:rgba(108,75,255,.1);border:1px solid rgba(108,75,255,.28);
  display:flex;align-items:center;justify-content:center;
}
.empty-icon span{width:22px;height:22px;border-radius:6px;background:var(--grad);display:block;}
.empty-state h2{font-size:20px;font-weight:700;color:var(--ink);margin-bottom:10px;}
.empty-state p{font-size:15px;color:var(--ink-sub);margin-bottom:24px;line-height:1.8;}

/* 文末 */
.article-foot{
  margin-top:28px;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:26px 30px;box-shadow:var(--shadow-light);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:18px;
}
.tag-group{display:flex;flex-wrap:wrap;gap:8px;align-items:center;}
.tag-label{font-size:13px;color:var(--ink-sub);margin-right:4px;}
.tag{
  display:inline-flex;align-items:center;padding:5px 13px;border-radius:999px;
  font-size:12px;color:#5a37f0;background:rgba(108,75,255,.08);
  border:1px solid rgba(108,75,255,.28);
}
.tag:hover{background:rgba(108,75,255,.16);}
.foot-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* 侧栏 */
.article-side{display:flex;flex-direction:column;gap:20px;position:sticky;top:96px;}
@media (max-width:1023px){.article-side{position:static;}}
.side-card{
  background:#fff;border:1px solid var(--line);border-radius:20px;
  padding:22px 22px;box-shadow:var(--shadow-light);
}
.side-title{
  display:flex;align-items:center;gap:9px;font-size:15px;font-weight:700;color:var(--ink);
  margin-bottom:14px;
}
.side-title::before{content:"";width:12px;height:3px;border-radius:2px;background:var(--grad-line);}
.toc-list li{margin-bottom:2px;}
.toc-list a{
  display:block;font-size:14px;color:var(--ink-sub);line-height:1.6;
  padding:7px 10px;border-radius:10px;border-left:2px solid transparent;
}
.toc-list a:hover{color:#5a37f0;background:rgba(108,75,255,.07);border-left-color:var(--brand);}
.toc-list a.is-current{color:#5a37f0;background:rgba(108,75,255,.09);border-left-color:var(--brand);}
.toc-empty{font-size:13px;color:var(--ink-sub);line-height:1.7;}
.side-entry-list li + li{margin-top:10px;}
.side-entry-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  font-size:14px;color:var(--ink);padding:11px 14px;border-radius:12px;
  background:#f8f9fd;border:1px solid var(--line);
}
.side-entry-list a:hover{background:#fff;border-color:rgba(108,75,255,.4);color:#5a37f0;transform:translateX(2px);}
.side-entry-list .arrow{color:var(--brand);font-size:14px;}
.side-note{font-size:13px;color:var(--ink-sub);line-height:1.8;margin-top:12px;}

/* ============ 相关入口 ============ */
.related-section{padding:0 0 88px;background:var(--light);color:var(--ink);}
.section-head{margin-bottom:32px;}
.section-eyebrow{
  display:inline-block;font-size:12px;letter-spacing:.08em;font-weight:600;
  color:#5a37f0;margin-bottom:10px;
}
.section-head h2{font-size:clamp(22px,2.4vw,30px);font-weight:700;color:var(--ink);line-height:1.35;}
.section-head p{font-size:15px;color:var(--ink-sub);margin-top:10px;max-width:640px;line-height:1.8;}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
@media (max-width:1023px){.related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (max-width:640px){.related-grid{grid-template-columns:1fr;}}
.rel-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:20px;overflow:hidden;box-shadow:var(--shadow-light);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.rel-card:hover{transform:translateY(-4px);border-color:rgba(108,75,255,.42);box-shadow:0 16px 36px rgba(108,75,255,.16);}
.rel-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:#e9ecf5;}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.rel-card:hover .rel-thumb img{transform:scale(1.05);}
.rel-tag{
  position:absolute;left:14px;top:14px;padding:4px 12px;border-radius:999px;
  font-size:12px;color:#fff;background:rgba(11,13,20,.66);
  border:1px solid rgba(255,255,255,.22);backdrop-filter:blur(6px);
}
.rel-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.rel-body h3{font-size:16px;font-weight:700;color:var(--ink);line-height:1.5;}
.rel-body p{font-size:14px;color:var(--ink-sub);line-height:1.75;flex:1;}
.rel-more{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:#5a37f0;font-weight:600;}
.rel-card:hover .rel-more{gap:10px;}

/* ============ CTA 条 ============ */
.cta-strip{background:var(--bg-deep);padding:0 0 88px;}
.cta-panel{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  border:1px solid rgba(108,75,255,.32);
  background:linear-gradient(135deg,#151A27 0%,#1D2333 58%,#23183a 100%);
  padding:40px 44px;display:flex;flex-wrap:wrap;align-items:center;
  justify-content:space-between;gap:24px;box-shadow:var(--shadow-dark);
}
.cta-panel::before{
  content:"";position:absolute;right:-80px;top:-90px;width:320px;height:320px;
  border-radius:50%;background:radial-gradient(circle,rgba(255,61,154,.28),transparent 68%);
}
.cta-panel > *{position:relative;z-index:2;}
.cta-text h2{font-size:clamp(20px,2.2vw,26px);font-weight:700;color:#fff;line-height:1.4;}
.cta-text p{font-size:14px;color:var(--text-sub);margin-top:10px;max-width:620px;line-height:1.8;}
@media (max-width:640px){.cta-panel{padding:28px 22px;}.cta-panel .btn{width:100%;}}

/* ============ 页脚 ============ */
.site-footer{
  background:#080A10;border-top:1px solid var(--stroke);
  padding:64px 0 26px;position:relative;
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;width:40%;
  background:var(--grad-line);opacity:.9;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;}
@media (max-width:1023px){.footer-grid{grid-template-columns:1fr 1fr;gap:32px;}}
@media (max-width:640px){.footer-grid{grid-template-columns:1fr;gap:28px;}}
.footer-brand{display:flex;align-items:center;gap:11px;font-size:16px;font-weight:700;color:#fff;margin-bottom:16px;}
.footer-desc{font-size:14px;color:var(--text-sub);line-height:1.85;max-width:360px;}
.footer-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.02em;}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{font-size:14px;color:var(--text-sub);}
.footer-links a:hover{color:var(--mint);}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--stroke);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-size:13px;color:rgba(167,174,196,.8);
}
.footer-bottom a{color:var(--mint);}
.footer-bottom a:hover{text-decoration:underline;}

/* ============ 移动端导航 ============ */
@media (max-width:1023px){
  .container{padding:0 24px;}
  .nav-toggle{display:flex;}
  .main-nav{
    position:fixed;left:0;right:0;top:73px;bottom:0;
    margin-left:0;flex-direction:column;align-items:stretch;gap:2px;
    background:#0B0D14;padding:20px 24px 32px;
    transform:translateX(102%);transition:transform .26s ease;
    overflow-y:auto;border-top:1px solid rgba(108,75,255,.28);
  }
  .main-nav.open{transform:translateX(0);}
  .nav-link{
    padding:15px 16px;border-radius:12px;font-size:16px;
    border-bottom:1px solid rgba(255,255,255,.06);
  }
  .nav-link.is-active{background:rgba(108,75,255,.14);}
  .nav-link.is-active::after{display:none;}
  .main-nav .nav-cta-mobile{
    margin-top:20px;display:flex;width:100%;
  }
  .article-hero{padding:32px 0 56px;}
  .article-main{padding:44px 0 64px;}
  .related-section{padding-bottom:64px;}
  .cta-strip{padding-bottom:64px;}
}
@media (min-width:1024px){.nav-cta-mobile{display:none;}}
@media (max-width:640px){
  .container{padding:0 20px;}
  .nav-wrap{height:66px;gap:14px;}
  .main-nav{top:67px;}
  .brand-text{font-size:15px;}
  .brand-mark{width:28px;height:28px;}
  .prose{font-size:16px;}
  .prose h2{font-size:21px;}
  .prose h3{font-size:18px;}
  .article-foot{padding:20px;flex-direction:column;align-items:flex-start;}
  .footer-bottom{flex-direction:column;}
}
.fade-up{opacity:0;transform:translateY(12px);transition:opacity .5s ease,transform .5s ease;}
.fade-up.in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  .fade-up{opacity:1;transform:none;}
}

/* roulang page: category1 */
:root{
  --bg:#0B0D14;
  --panel:#151A27;
  --panel-2:#1D2333;
  --primary:#6C4BFF;
  --magenta:#FF3D9A;
  --gold:#FFC24B;
  --mint:#35E6C0;
  --light:#F6F7FB;
  --light-card:#ffffff;
  --ink:#1A1D26;
  --ink-2:#5B6376;
  --line-light:#E6E9F2;
  --text:#E8EBF5;
  --text-2:#A7AEC4;
  --line:rgba(255,255,255,.08);
  --grad:linear-gradient(135deg,#6C4BFF 0%,#FF3D9A 100%);
  --r-xl:24px;
  --r-lg:20px;
  --r-md:16px;
  --r-sm:12px;
  --shadow:0 12px 32px rgba(4,6,14,.45);
  --shadow-lift:0 18px 44px rgba(4,6,14,.55);
  --sp-1:8px;
  --sp-2:16px;
  --sp-3:24px;
  --sp-4:32px;
  --ease:160ms ease;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4,p,figure,ul,ol{margin:0;padding:0}
ul,ol{list-style:none}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
input,textarea,select{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--mint);outline-offset:2px}
::selection{background:rgba(108,75,255,.45);color:#fff}

/* ---------- 栅格基座（Foundation 覆盖） ---------- */
.grid-x{margin-left:-14px;margin-right:-14px;display:flex;flex-flow:row wrap}
.grid-x>.cell{padding-left:14px;padding-right:14px;width:100%;max-width:100%}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}

/* ---------- 通用 ---------- */
.section{padding:96px 0}
.section-tight{padding:72px 0}
.eyebrow{
  display:inline-block;font-size:12px;font-weight:600;letter-spacing:.08em;
  background:linear-gradient(135deg,#A48BFF,#FF7BC0);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.section-head{max-width:720px;margin-bottom:40px}
.section-head h2{font-size:clamp(24px,3vw,34px);font-weight:700;line-height:1.3;color:#fff;letter-spacing:-.01em}
.section-head h2.on-light{color:var(--ink)}
.section-head p{margin-top:14px;font-size:16px;line-height:1.85;color:var(--text-2)}
.section-head p.on-light{color:var(--ink-2)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;border-radius:var(--r-sm);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),color var(--ease),border-color var(--ease);
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 10px 26px rgba(108,75,255,.35)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 34px rgba(255,61,154,.42);filter:brightness(1.06)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;border-color:rgba(108,75,255,.55);color:#C9BCFF}
.btn-ghost:hover{color:#fff;border-color:var(--mint);transform:translateY(-2px);box-shadow:0 0 0 1px rgba(53,230,192,.35),0 0 22px rgba(53,230,192,.18)}
.btn-sm{padding:10px 18px;font-size:14px;border-radius:10px}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:90;
  background:rgba(11,13,20,.94);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.site-header::after{
  content:"";position:absolute;left:0;bottom:-1px;height:1px;width:42%;
  background:linear-gradient(90deg,var(--primary),var(--magenta));
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:72px}
.brand{display:flex;align-items:center;gap:12px;font-size:17px;font-weight:700;letter-spacing:.01em;color:#fff}
.brand-mark{
  width:34px;height:34px;flex:0 0 34px;display:grid;grid-template-columns:1fr 1fr;gap:3px;
  padding:4px;border-radius:11px;background:rgba(255,255,255,.05);border:1px solid var(--line);
}
.brand-mark i{display:block;border-radius:3px;background:var(--grad)}
.brand-mark i:nth-child(2){opacity:.72}
.brand-mark i:nth-child(3){opacity:.55}
.brand-mark i:nth-child(4){opacity:.88}
.main-nav{display:flex;align-items:center;gap:4px}
.nav-link{
  position:relative;padding:10px 14px;border-radius:10px;font-size:15px;color:var(--text-2);
  transition:color var(--ease),background var(--ease),text-shadow var(--ease);
}
.nav-link:hover{color:#fff;background:rgba(108,75,255,.12)}
.nav-link.is-active{color:#fff;background:rgba(108,75,255,.16);text-shadow:0 0 14px rgba(108,75,255,.55)}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;border-radius:2px;background:var(--grad);
}
.nav-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;flex-direction:column;align-items:center;justify-content:center;gap:5px;
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:rgba(255,255,255,.03);
}
.nav-toggle span{display:block;width:20px;height:2px;border-radius:2px;background:var(--text);transition:transform var(--ease),opacity var(--ease)}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- 分类页头 ---------- */
.page-hero{position:relative;overflow:hidden;padding:84px 0 76px;background:#0B0D14}
.page-hero-bg{
  position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;opacity:.55;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(11,13,20,.97) 0%,rgba(11,13,20,.88) 44%,rgba(11,13,20,.5) 100%);
}
.page-hero::after{
  content:"";position:absolute;right:-8%;top:-30%;width:620px;height:620px;border-radius:50%;
  background:radial-gradient(circle,rgba(108,75,255,.35),rgba(108,75,255,0) 68%);
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:2}
.page-hero h1{
  margin:16px 0 18px;
  font-size:clamp(28px,3.8vw,46px);
  font-weight:700;line-height:1.2;letter-spacing:-.01em;color:#fff;
  text-shadow:0 6px 30px rgba(4,6,14,.6);
}
.hero-lead{max-width:660px;font-size:17px;line-height:1.85;color:var(--text-2)}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-note{margin-top:20px;font-size:13px;color:#7C8399}

.badge-stack{display:flex;flex-direction:column;gap:12px}
.data-badge{
  display:flex;align-items:center;gap:14px;padding:16px 20px;border-radius:var(--r-lg);
  border:1px solid transparent;
  background-image:linear-gradient(180deg,rgba(29,35,51,.94),rgba(21,26,39,.94)),var(--grad);
  background-origin:border-box;background-clip:padding-box,border-box;
  box-shadow:var(--shadow);
  transition:transform var(--ease),box-shadow var(--ease);
}
.data-badge:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(108,75,255,.4),var(--shadow-lift)}
.data-num{
  font-size:34px;font-weight:700;line-height:1;font-variant-numeric:tabular-nums;
  background:linear-gradient(135deg,var(--gold),var(--magenta));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.data-label{font-size:14px;color:var(--text-2);line-height:1.5}

/* ---------- 锚点目录 + 分节长文 ---------- */
.doc-section{padding-top:88px}
.toc-card{
  position:sticky;top:102px;
  background:var(--panel);border:1px solid var(--line);border-radius:22px;padding:24px;
  box-shadow:var(--shadow);
}
.toc-title{font-size:14px;letter-spacing:.08em;color:var(--text-2);margin-bottom:14px}
.toc-list{display:flex;flex-direction:column;gap:4px}
.toc-list a{
  display:block;padding:10px 12px;border-radius:12px;border-left:2px solid transparent;
  font-size:14.5px;line-height:1.6;color:var(--text-2);
  transition:color var(--ease),background var(--ease),border-color var(--ease),transform var(--ease);
}
.toc-list a:hover{color:#fff;background:rgba(255,255,255,.05);transform:translateX(2px)}
.toc-list a.is-active{color:#fff;background:rgba(108,75,255,.18);border-left-color:var(--magenta)}
.toc-tip{
  margin-top:18px;padding-top:16px;border-top:1px solid var(--line);
  font-size:13px;line-height:1.75;color:var(--text-2);
}
.toc-cta{margin-top:16px;width:100%}

.doc-panel{
  background:var(--light);color:var(--ink);border:1px solid var(--line-light);
  border-radius:var(--r-xl);padding:44px;
  box-shadow:0 20px 50px rgba(4,6,14,.5);
}
.doc-intro{font-size:16.5px;line-height:1.9;color:#3A4152}
.doc-block{padding-top:40px}
.doc-block + .doc-block{margin-top:40px;border-top:1px solid var(--line-light)}
.doc-block h2{
  position:relative;padding-left:16px;
  font-size:clamp(20px,2.2vw,26px);font-weight:700;line-height:1.4;color:#12141C;
}
.doc-block h2::before{
  content:"";position:absolute;left:0;top:.24em;bottom:.24em;width:3px;border-radius:3px;background:var(--grad);
}
.doc-block p{margin-top:16px;font-size:17px;line-height:1.9;color:#2E3444}
.doc-block p.note{font-size:15px;color:var(--ink-2)}
.doc-list{margin-top:18px;display:flex;flex-direction:column;gap:12px}
.doc-list li{position:relative;padding-left:22px;font-size:16px;line-height:1.85;color:#3A4152}
.doc-list li::before{
  content:"";position:absolute;left:0;top:.72em;width:8px;height:8px;border-radius:3px;background:var(--grad);
}
.doc-list li strong{color:#12141C;font-weight:600}
.doc-steps{counter-reset:step;margin-top:18px;display:flex;flex-direction:column;gap:14px}
.doc-steps li{
  counter-increment:step;position:relative;padding:16px 20px 16px 62px;
  background:var(--light-card);border:1px solid var(--line-light);border-radius:var(--r-md);
  font-size:16px;line-height:1.85;color:#3A4152;
}
.doc-steps li::before{
  content:counter(step);position:absolute;left:18px;top:16px;
  width:28px;height:28px;border-radius:9px;background:var(--grad);color:#fff;
  font-size:13px;font-weight:700;display:flex;align-items:center;justify-content:center;
  font-variant-numeric:tabular-nums;
}
.tip-box{
  margin-top:22px;padding:18px 20px;border-radius:var(--r-md);
  background:#EEF0FF;border-left:3px solid var(--primary);
  font-size:15.5px;line-height:1.85;color:#333A4A;
}
.doc-figure{margin-top:24px;border-radius:var(--r-md);overflow:hidden;border:1px solid var(--line-light);background:var(--light-card)}
.doc-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-md)}
.doc-figure figcaption{padding:12px 16px;font-size:13px;color:var(--ink-2)}

/* ---------- 核对清单卡 ---------- */
.plan-card{
  display:flex;align-items:stretch;overflow:hidden;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-xl);box-shadow:var(--shadow);
}
.plan-media{flex:0 0 42%;min-height:340px;position:relative}
.plan-media img{width:100%;height:100%;object-fit:cover}
.plan-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(11,13,20,.05),rgba(21,26,39,.75));
}
.plan-body{flex:1 1 auto;padding:40px}
.plan-body h2{margin-top:12px;font-size:clamp(22px,2.4vw,30px);font-weight:700;line-height:1.35;color:#fff}
.plan-lead{margin-top:14px;font-size:15.5px;line-height:1.85;color:var(--text-2)}
.plan-list{margin-top:22px;display:flex;flex-direction:column;gap:12px}
.plan-list li{
  display:flex;gap:12px;align-items:flex-start;
  padding:14px 16px;border-radius:14px;border:1px solid var(--line);
  background:rgba(255,255,255,.03);font-size:15px;line-height:1.75;color:var(--text);
  transition:border-color var(--ease),transform var(--ease);
}
.plan-list li:hover{border-color:rgba(108,75,255,.5);transform:translateY(-2px)}
.plan-list li span.dot{
  flex:0 0 8px;width:8px;height:8px;margin-top:.6em;border-radius:3px;background:var(--grad);
}
.plan-actions{margin-top:26px;display:flex;flex-wrap:wrap;gap:12px}

/* ---------- 问答 ---------- */
.qa-grid{margin-bottom:-24px}
.qa-card{
  height:calc(100% - 24px);margin-bottom:24px;padding:26px;
  background:rgba(255,255,255,.03);border:1px solid var(--line);border-radius:var(--r-lg);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.qa-card:hover{transform:translateY(-4px);border-color:rgba(108,75,255,.45);box-shadow:0 0 0 1px rgba(108,75,255,.28),var(--shadow-lift)}
.qa-q{display:flex;gap:12px;align-items:flex-start;font-size:17px;font-weight:600;line-height:1.6;color:#fff}
.qa-tag{
  flex:0 0 24px;width:24px;height:24px;margin-top:2px;border-radius:8px;
  background:rgba(108,75,255,.22);color:#B9A6FF;
  font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;
}
.qa-a{margin-top:12px;padding-left:36px;font-size:15px;line-height:1.85;color:var(--text-2)}

/* ---------- CTA 条 ---------- */
.cta-bar{
  display:flex;flex-wrap:wrap;gap:24px;align-items:center;justify-content:space-between;
  padding:34px 38px;border-radius:var(--r-xl);border:1px solid rgba(255,255,255,.12);
  background:linear-gradient(135deg,rgba(108,75,255,.22),rgba(255,61,154,.14));
  box-shadow:var(--shadow);
}
.cta-bar h2{font-size:clamp(19px,2.2vw,24px);font-weight:700;line-height:1.45;color:#fff}
.cta-bar p{margin-top:10px;font-size:14.5px;line-height:1.8;color:var(--text-2);max-width:620px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- 页脚 ---------- */
.site-footer{position:relative;background:#080A11;border-top:1px solid var(--line)}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;width:45%;height:1px;
  background:linear-gradient(90deg,var(--primary),var(--magenta));
}
.footer-grid{display:grid;grid-template-columns:1.5fr .8fr .9fr 1fr;gap:40px;padding:64px 0 40px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:700;color:#fff}
.footer-desc{margin-top:18px;max-width:380px;font-size:14px;line-height:1.85;color:var(--text-2)}
.footer-title{margin-bottom:16px;font-size:14px;font-weight:600;letter-spacing:.02em;color:#fff}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{display:inline-block;font-size:14px;color:var(--text-2);transition:color var(--ease),transform var(--ease)}
.footer-links a:hover{color:var(--mint);transform:translateX(3px)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  padding:20px 0 34px;border-top:1px solid var(--line);
  font-size:13px;color:#7C8399;
}
.footer-bottom a{color:var(--mint)}
.footer-bottom a:hover{color:#fff}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s ease,transform .5s ease}
.reveal.is-visible{opacity:1;transform:none}
.doc-block{scroll-margin-top:104px}
section[id]{scroll-margin-top:96px}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1279px){
  .container{padding:0 28px}
}
@media screen and (max-width:1023px){
  .container{padding:0 24px}
  .section{padding:72px 0}
  .doc-section{padding-top:64px}
  .doc-panel{padding:32px}
  .nav-toggle{display:flex}
  .main-nav{
    position:fixed;top:0;right:0;bottom:0;width:min(360px,86vw);
    flex-direction:column;align-items:stretch;justify-content:flex-start;
    gap:6px;padding:100px 24px 40px;
    background:rgba(9,11,18,.99);
    border-left:1px solid var(--line);
    box-shadow:-20px 0 60px rgba(0,0,0,.6);
    transform:translateX(105%);
    transition:transform .28s ease;
    z-index:88;overflow-y:auto;
  }
  .main-nav.is-open{transform:translateX(0)}
  .main-nav .nav-link{font-size:17px;padding:15px 6px;border-bottom:1px solid var(--line);border-radius:0;background:none}
  .main-nav .nav-link.is-active{background:rgba(108,75,255,.14);border-radius:10px;border-bottom-color:transparent}
  .main-nav .nav-link.is-active::after{display:none}
  .toc-card{position:static;margin-bottom:24px}
  .badge-stack{flex-direction:row;overflow-x:auto;gap:12px;padding-bottom:6px;-webkit-overflow-scrolling:touch}
  .badge-stack .data-badge{flex:0 0 auto;min-width:230px}
  .plan-card{flex-direction:column}
  .plan-media{flex:0 0 auto;min-height:220px;max-height:260px}
  .plan-media::after{background:linear-gradient(180deg,rgba(11,13,20,.05),rgba(21,26,39,.85))}
  .plan-body{padding:30px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:52px 0 32px}
}
@media screen and (max-width:767px){
  .section{padding:60px 0}
  .section-head{margin-bottom:28px}
  .page-hero{padding:64px 0 56px}
  .doc-panel{padding:26px}
  .doc-block{padding-top:30px}
  .doc-block + .doc-block{margin-top:30px}
  .doc-block p{font-size:16px}
  .qa-card{padding:22px}
  .qa-a{padding-left:0;margin-top:14px}
  .cta-bar{padding:26px}
  .cta-actions .btn{width:100%}
  .hero-actions .btn{width:100%}
}
@media screen and (max-width:520px){
  .container{padding:0 18px}
  .grid-x{margin-left:-10px;margin-right:-10px}
  .grid-x>.cell{padding-left:10px;padding-right:10px}
  .brand-text{font-size:15px}
  .data-badge{min-width:200px;padding:14px 16px}
  .data-num{font-size:28px}
  .doc-panel{padding:20px}
  .plan-body{padding:22px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column}
}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *{transition:none!important;animation:none!important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category2 */
:root{
  --bg:#0B0D14;
  --panel:#151A27;
  --panel-2:#1D2333;
  --panel-3:#10141F;
  --brand:#6C4BFF;
  --brand-2:#FF3D9A;
  --gold:#FFC24B;
  --mint:#35E6C0;
  --text:#E8EBF5;
  --muted:#A7AEC4;
  --line:rgba(255,255,255,.08);
  --light:#F6F7FB;
  --ink:#1A1D26;
  --ink-muted:#5B6376;
  --line-light:#E6E9F2;
  --grad:linear-gradient(135deg,#6C4BFF 0%,#FF3D9A 100%);
  --grad-soft:linear-gradient(135deg,rgba(108,75,255,.18),rgba(255,61,154,.14));
  --r-lg:24px;
  --r-md:20px;
  --r-sm:12px;
  --r-pill:999px;
  --sh:0 12px 32px rgba(4,6,14,.45);
  --sh-hover:0 18px 40px rgba(4,6,14,.6);
  --sec-pad:96px;
  --font-cn:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --font-num:"Inter","SFMono-Regular",ui-monospace,monospace;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-radius:16px;}
a{color:inherit;text-decoration:none;transition:color .18s ease,opacity .18s ease;}
a:hover{color:var(--mint);}
button{font-family:inherit;border:0;background:none;cursor:pointer;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--brand-2);outline-offset:3px;border-radius:6px;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 32px;
}
.eyebrow{
  display:inline-block;
  font-size:12px;
  letter-spacing:.08em;
  font-weight:700;
  text-transform:uppercase;
  background:var(--grad);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
  margin-bottom:14px;
}
.sec-title{font-size:clamp(24px,3vw,36px);line-height:1.25;font-weight:700;letter-spacing:-.01em;}
.sec-desc{color:var(--muted);font-size:15px;margin-top:12px;max-width:640px;}
.section{padding:var(--sec-pad) 0;}
.section--tight{padding:64px 0;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:90;
  background:rgba(11,13,20,.88);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.site-header::after{
  content:"";
  position:absolute;
  left:0;bottom:-1px;
  width:40%;
  height:1px;
  background:linear-gradient(90deg,#6C4BFF,#FF3D9A);
}
.nav-wrap{
  display:flex;
  align-items:center;
  gap:28px;
  min-height:72px;
}
.brand{display:flex;align-items:center;gap:12px;flex:none;}
.brand-mark{
  width:34px;height:34px;
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:3px;
  padding:5px;
  border-radius:10px;
  background:var(--grad);
  box-shadow:0 6px 18px rgba(108,75,255,.35);
}
.brand-mark i{background:rgba(11,13,20,.75);border-radius:2px;display:block;}
.brand-text{font-size:17px;font-weight:700;letter-spacing:.01em;white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:auto;}
.nav-link{
  position:relative;
  padding:10px 14px;
  font-size:15px;
  color:var(--muted);
  border-radius:var(--r-pill);
  white-space:nowrap;
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.04);}
.nav-link.is-active{
  color:#fff;
  background:linear-gradient(135deg,rgba(108,75,255,.22),rgba(255,61,154,.16));
  text-shadow:0 0 14px rgba(255,61,154,.45);
}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:16px;right:16px;bottom:2px;
  height:2px;
  border-radius:2px;
  background:var(--grad);
}
.nav-actions{display:flex;align-items:center;gap:12px;flex:none;}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:12px;
  border:1px solid var(--line);
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;transition:transform .2s ease,opacity .2s ease;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:13px 26px;
  border-radius:var(--r-pill);
  font-size:15px;
  font-weight:600;
  line-height:1;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
}
.btn-sm{padding:10px 18px;font-size:14px;}
.btn-primary{
  background:var(--grad);
  color:#fff;
  box-shadow:0 10px 26px rgba(108,75,255,.35);
}
.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 16px 34px rgba(255,61,154,.38);}
.btn-ghost{
  border:1px solid rgba(108,75,255,.6);
  color:var(--text);
  background:rgba(108,75,255,.08);
  box-shadow:0 0 0 1px rgba(255,61,154,.12) inset;
}
.btn-ghost:hover{color:#fff;border-color:var(--brand-2);transform:translateY(-2px);background:rgba(255,61,154,.12);}
.btn-light{
  background:var(--light);
  color:var(--ink);
}
.btn-light:hover{color:var(--ink);transform:translateY(-2px);box-shadow:0 12px 26px rgba(4,6,14,.35);}
.link-arrow{font-size:14px;font-weight:600;color:var(--brand-2);display:inline-flex;align-items:center;gap:6px;}
.link-arrow:hover{color:var(--mint);gap:10px;}

/* ============ 页头 Banner ============ */
.page-hero{
  position:relative;
  padding:92px 0 72px;
  background-image:linear-gradient(105deg,rgba(11,13,20,.97) 0%,rgba(11,13,20,.86) 48%,rgba(11,13,20,.55) 100%),url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.page-hero::before{
  content:"";
  position:absolute;
  width:520px;height:520px;
  right:-120px;top:-220px;
  background:radial-gradient(circle,rgba(255,61,154,.28),transparent 68%);
  pointer-events:none;
}
.page-hero::after{
  content:"";
  position:absolute;
  width:420px;height:420px;
  left:-160px;bottom:-220px;
  background:radial-gradient(circle,rgba(108,75,255,.3),transparent 70%);
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:2;}
.breadcrumb{
  font-size:13px;
  color:var(--muted);
  margin-bottom:20px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--mint);}
.breadcrumb .sep{opacity:.5;}
.breadcrumb .current{color:var(--brand-2);text-shadow:0 0 12px rgba(255,61,154,.5);}
.page-hero h1{
  font-size:clamp(30px,4.4vw,52px);
  line-height:1.18;
  font-weight:700;
  letter-spacing:-.02em;
  max-width:16em;
}
.page-hero h1 em{
  font-style:normal;
  background:var(--grad);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero-lead{
  margin-top:20px;
  max-width:660px;
  color:var(--muted);
  font-size:16px;
}
.hero-badges{
  display:flex;
  flex-wrap:wrap;
  gap:16px;
  margin-top:34px;
}
.badge{
  min-width:140px;
  padding:16px 22px;
  border-radius:20px;
  border:1px solid transparent;
  background:linear-gradient(var(--panel),var(--panel)) padding-box,var(--grad) border-box;
  background-color:rgba(255,255,255,.03);
  box-shadow:var(--sh);
}
.badge .num{
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-size:32px;
  font-weight:700;
  line-height:1.1;
  background:linear-gradient(135deg,#FFC24B,#FF3D9A);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.badge .label{display:block;font-size:13px;color:var(--muted);margin-top:6px;}

/* ============ 标签条 ============ */
.chip-bar{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  padding:22px 0;
  border-bottom:1px solid var(--line);
}
.chip{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:8px 16px;
  font-size:13px;
  color:var(--muted);
  border-radius:var(--r-pill);
  border:1px solid var(--line);
  background:rgba(255,255,255,.02);
}
.chip.is-active{
  color:#fff;
  border-color:transparent;
  background:linear-gradient(135deg,rgba(108,75,255,.32),rgba(255,61,154,.24));
  box-shadow:0 0 0 1px rgba(255,61,154,.35);
}
.chip i{font-size:12px;color:var(--gold);}

/* ============ 安全能力卡片宫格 ============ */
.safety-cols{margin-top:44px;}
.safety-col{display:flex;flex-direction:column;gap:28px;}
.sec-card{
  background:linear-gradient(180deg,rgba(255,255,255,.04),rgba(255,255,255,.015));
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh);
  overflow:hidden;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.sec-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--sh-hover),0 0 0 1px rgba(255,61,154,.3);
  border-color:rgba(108,75,255,.45);
}
.sec-card .thumb{position:relative;aspect-ratio:16/9;overflow:hidden;border-radius:0;}
.sec-card .thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .35s ease;}
.sec-card:hover .thumb img{transform:scale(1.05);}
.sec-card .thumb::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,13,20,.1),rgba(11,13,20,.72));
}
.sec-card .body{padding:26px 28px 28px;}
.tag{
  display:inline-block;
  font-size:12px;
  padding:5px 12px;
  border-radius:var(--r-pill);
  border:1px solid rgba(255,61,154,.5);
  color:#ffd9ec;
  background:rgba(255,61,154,.1);
  margin-bottom:14px;
}
.sec-card h3{font-size:21px;font-weight:600;line-height:1.4;}
.sec-card p{color:var(--muted);font-size:15px;margin-top:12px;}
.sec-card .points{margin-top:16px;display:flex;flex-direction:column;gap:10px;}
.sec-card .points li{
  position:relative;
  padding-left:22px;
  font-size:14px;
  color:var(--text);
}
.sec-card .points li::before{
  content:"";
  position:absolute;
  left:0;top:9px;
  width:8px;height:8px;
  border-radius:50%;
  background:var(--grad);
  box-shadow:0 0 10px rgba(255,61,154,.55);
}
.sec-card .card-foot{
  margin-top:20px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding-top:18px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--muted);
}
.card-mini{margin-top:28px;}
.safety-col .sec-card:only-child{margin-top:0;}

/* ============ 步骤流程 ============ */
.steps-wrap{margin-top:44px;}
.steps{display:flex;flex-direction:column;gap:20px;}
.step{
  position:relative;
  padding:24px 26px 24px 30px;
  border-radius:var(--r-md);
  background:rgba(255,255,255,.03);
  border:1px solid var(--line);
  transition:transform .2s ease,border-color .2s ease,background .2s ease;
}
.step:hover{transform:translateY(-3px);border-color:rgba(53,230,192,.4);background:rgba(53,230,192,.05);}
.step .n{
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-size:26px;
  font-weight:700;
  background:var(--grad);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
  display:block;
  margin-bottom:8px;
}
.step h3{font-size:18px;font-weight:600;}
.step p{color:var(--muted);font-size:14px;margin-top:8px;}

/* ============ FAQ ============ */
.faq{display:flex;flex-direction:column;gap:14px;margin-top:38px;}
.faq-item{
  border-radius:16px;
  background:var(--panel);
  border:1px solid var(--line);
  overflow:hidden;
  transition:border-color .2s ease;
}
.faq-item.is-open{border-color:rgba(108,75,255,.5);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  text-align:left;
  padding:20px 24px;
  font-size:17px;
  font-weight:600;
  color:var(--text);
}
.faq-q:hover{color:#fff;}
.faq-icon{position:relative;width:18px;height:18px;flex:none;}
.faq-icon::before,.faq-icon::after{
  content:"";
  position:absolute;
  background:var(--brand-2);
  border-radius:2px;
  transition:transform .2s ease,opacity .2s ease;
}
.faq-icon::before{left:0;top:8px;width:18px;height:2px;}
.faq-icon::after{left:8px;top:0;width:2px;height:18px;}
.faq-item.is-open .faq-icon::after{transform:rotate(90deg);opacity:0;}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .28s ease;
}
.faq-a p{
  padding:0 24px 22px 27px;
  border-left:3px solid var(--brand-2);
  margin-left:24px;
  color:var(--muted);
  font-size:15px;
  line-height:1.8;
}

/* ============ CTA 条 ============ */
.cta-bar{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  padding:36px 40px;
  border-radius:var(--r-lg);
  background:linear-gradient(120deg,rgba(108,75,255,.22),rgba(255,61,154,.14)),var(--panel-2);
  border:1px solid rgba(255,255,255,.1);
  box-shadow:var(--sh);
}
.cta-bar h2{font-size:clamp(20px,2.4vw,26px);font-weight:700;}
.cta-bar p{color:var(--muted);font-size:14px;margin-top:8px;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--panel-3);
  border-top:1px solid var(--line);
  position:relative;
  padding:72px 0 32px;
  margin-top:24px;
}
.site-footer::before{
  content:"";
  position:absolute;
  top:-1px;left:0;
  width:220px;height:2px;
  background:var(--grad);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:40px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:17px;
  font-weight:700;
  margin-bottom:16px;
}
.footer-desc{color:var(--muted);font-size:14px;max-width:340px;}
.footer-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.02em;}
.footer-links{display:flex;flex-direction:column;gap:12px;}
.footer-links a{color:var(--muted);font-size:14px;}
.footer-links a:hover{color:var(--mint);transform:translateX(2px);}
.footer-bottom{
  margin-top:48px;
  padding-top:22px;
  border-top:1px solid var(--line);
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  justify-content:space-between;
  color:var(--muted);
  font-size:13px;
}
.footer-bottom a{color:var(--mint);}

/* ============ 移动端底部入口 ============ */
.mobile-bar{
  display:none;
  position:fixed;
  left:0;right:0;bottom:0;
  z-index:80;
  padding:10px 16px;
  background:rgba(11,13,20,.95);
  backdrop-filter:blur(12px);
  border-top:1px solid var(--line);
}
.mobile-bar .btn{width:100%;height:46px;}

/* ============ 滚动动效 ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s ease,transform .5s ease;}
.reveal.is-visible{opacity:1;transform:none;}

/* ============ 响应式 ============ */
@media (min-width:1024px){
  .safety-col.is-offset{padding-top:56px;}
}

@media (max-width:1023px){
  :root{--sec-pad:72px;}
  .container{padding:0 24px;}
  .main-nav{
    position:fixed;
    inset:72px 0 0 0;
    flex-direction:column;
    align-items:stretch;
    gap:4px;
    padding:28px 24px 120px;
    margin-left:0;
    background:rgba(11,13,20,.98);
    backdrop-filter:blur(8px);
    transform:translateY(-110%);
    transition:transform .28s ease;
    overflow-y:auto;
  }
  .main-nav.is-open{transform:translateY(0);}
  .main-nav .nav-link{
    font-size:18px;
    padding:16px 18px;
    border-radius:16px;
    border-bottom:1px solid rgba(108,75,255,.14);
  }
  .main-nav .nav-link.is-active::after{left:18px;right:auto;width:36px;bottom:8px;}
  .nav-toggle{display:flex;}
  body.nav-open{overflow:hidden;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .cta-bar{flex-direction:column;align-items:flex-start;padding:30px 26px;}
  .cta-bar .btn{width:100%;}
  .safety-col.is-offset{padding-top:0;}
}

@media (max-width:767px){
  :root{--sec-pad:56px;}
  .container{padding:0 20px;}
  body{padding-bottom:76px;}
  .brand-text{font-size:15px;}
  .page-hero{padding:64px 0 54px;}
  .hero-badges{gap:12px;}
  .badge{flex:1 1 100%;min-width:0;padding:14px 18px;}
  .badge .num{font-size:28px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .mobile-bar{display:block;}
  .sec-card .body{padding:22px 20px 24px;}
  .faq-q{font-size:16px;padding:18px 18px;}
  .faq-a p{margin-left:18px;padding:0 18px 20px 20px;}
}

@media (max-width:520px){
  .chip{padding:7px 13px;font-size:12px;}
  .btn{padding:12px 20px;font-size:14px;}
  .cta-bar h2{font-size:19px;}
}

@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category3 */
:root{
  --bg:#0B0D14;
  --panel:#151A27;
  --panel-2:#1D2333;
  --panel-3:#10141F;
  --brand:#6C4BFF;
  --brand-2:#FF3D9A;
  --gold:#FFC24B;
  --mint:#35E6C0;
  --light:#F6F7FB;
  --ink:#1A1D26;
  --ink-2:#5B6376;
  --line-light:#E6E9F2;
  --text:#E8EBF5;
  --text-2:#A7AEC4;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --grad:linear-gradient(135deg,#6C4BFF 0%,#FF3D9A 100%);
  --grad-soft:linear-gradient(135deg,rgba(108,75,255,.22),rgba(255,61,154,.18));
  --radius-xl:24px;
  --radius-lg:20px;
  --radius-md:16px;
  --radius-sm:12px;
  --shadow:0 12px 32px rgba(4,6,14,.45);
  --shadow-soft:0 6px 18px rgba(4,6,14,.30);
  --shadow-glow:0 0 0 1px rgba(108,75,255,.45),0 12px 36px rgba(108,75,255,.22);
  --space:8px;
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-num:"Inter","SFMono-Regular",Consolas,"Liberation Mono",monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;transition:color .18s ease,opacity .18s ease;}
a:hover{color:var(--mint);}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding-left:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand-2);outline-offset:3px;border-radius:6px;}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:32px;
  padding-right:32px;
}
.grid-x{display:flex;flex-wrap:wrap;}
.grid-x>.cell{flex:0 0 auto;width:100%;}
/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(11,13,20,.92);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.site-header::after{
  content:"";
  display:block;
  height:2px;
  width:40%;
  min-width:220px;
  background:var(--grad);
}
.nav-wrap{
  height:72px;
  display:flex;
  align-items:center;
  gap:24px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:12px;
  flex-shrink:0;
}
.brand-mark{
  width:34px;
  height:34px;
  border-radius:10px;
  display:grid;
  grid-template-columns:1fr 1fr;
  grid-template-rows:1fr 1fr;
  gap:3px;
  padding:5px;
  background:var(--grad);
  box-shadow:0 6px 18px rgba(108,75,255,.38);
}
.brand-mark i{
  display:block;
  background:rgba(11,13,20,.62);
  border-radius:2px;
}
.brand-mark i:nth-child(2){background:rgba(255,255,255,.85);}
.brand-text{
  font-size:17px;
  font-weight:700;
  letter-spacing:.01em;
  color:#fff;
  white-space:nowrap;
}
.main-nav{
  display:flex;
  align-items:center;
  gap:6px;
  margin-left:auto;
}
.nav-link{
  position:relative;
  display:inline-block;
  padding:10px 14px;
  font-size:15px;
  color:var(--text-2);
  border-radius:999px;
  white-space:nowrap;
}
.nav-link:hover{
  color:#fff;
  background:rgba(255,255,255,.05);
}
.nav-link::after{
  content:"";
  position:absolute;
  left:14px;
  right:14px;
  bottom:2px;
  height:2px;
  border-radius:2px;
  background:var(--grad);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .2s ease;
}
.nav-link.is-active{
  color:#fff;
  background:linear-gradient(135deg,rgba(108,75,255,.20),rgba(255,61,154,.14));
  text-shadow:0 0 14px rgba(255,61,154,.45);
}
.nav-link.is-active::after,
.nav-link:hover::after{transform:scaleX(1);}
.nav-actions{
  display:flex;
  align-items:center;
  gap:12px;
  flex-shrink:0;
}
.nav-toggle{
  display:none;
  width:44px;
  height:40px;
  border-radius:12px;
  border:1px solid var(--line-strong);
  background:rgba(255,255,255,.04);
  cursor:pointer;
  padding:0;
  place-items:center;
  gap:5px;
  flex-direction:column;
  align-items:center;
  justify-content:center;
}
.nav-toggle span{
  display:block;
  width:18px;
  height:2px;
  border-radius:2px;
  background:var(--text);
  transition:transform .2s ease,opacity .2s ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:14px 26px;
  font-size:15px;
  font-weight:600;
  border-radius:14px;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
  white-space:nowrap;
}
.btn-primary{
  background:var(--grad);
  color:#fff;
  box-shadow:0 10px 26px rgba(108,75,255,.38);
}
.btn-primary:hover{
  color:#fff;
  transform:translateY(-2px);
  box-shadow:0 14px 34px rgba(255,61,154,.42);
  filter:brightness(1.06);
}
.btn-ghost{
  background:transparent;
  color:var(--text);
  border-color:rgba(53,230,192,.45);
  box-shadow:inset 0 0 0 1px rgba(53,230,192,.12);
}
.btn-ghost:hover{
  color:#fff;
  border-color:var(--mint);
  transform:translateY(-2px);
  box-shadow:0 0 22px rgba(53,230,192,.26);
}
.btn-sm{padding:10px 18px;font-size:14px;border-radius:12px;}
.btn-block{width:100%;}
/* ---------- 页头 Hero ---------- */
.page-hero{
  position:relative;
  overflow:hidden;
  padding:92px 0 76px;
  background-image:linear-gradient(100deg,rgba(11,13,20,.97) 0%,rgba(11,13,20,.90) 42%,rgba(11,13,20,.62) 78%,rgba(11,13,20,.45) 100%),
    url("/assets/images/backpic/back-3.webp");
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:
    radial-gradient(520px 320px at 12% 22%,rgba(108,75,255,.30),transparent 70%),
    radial-gradient(420px 280px at 82% 78%,rgba(255,61,154,.22),transparent 72%);
  pointer-events:none;
}
.page-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:56px 56px;
  opacity:.5;
  pointer-events:none;
}
.hero-inner{position:relative;z-index:2;}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-2);
  margin-bottom:22px;
}
.breadcrumb a:hover{color:var(--mint);}
.breadcrumb .sep{opacity:.5;}
.breadcrumb .current{color:var(--brand-2);text-shadow:0 0 12px rgba(255,61,154,.5);}
.eyebrow{
  display:inline-block;
  font-size:12px;
  letter-spacing:.16em;
  font-weight:600;
  color:var(--mint);
  text-transform:uppercase;
  margin-bottom:14px;
}
.page-hero h1{
  font-size:clamp(30px,4.4vw,52px);
  line-height:1.18;
  font-weight:700;
  letter-spacing:-.01em;
  color:#fff;
  max-width:820px;
}
.page-hero h1 em{
  font-style:normal;
  background:var(--grad);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero-lead{
  margin-top:18px;
  max-width:660px;
  font-size:17px;
  line-height:1.85;
  color:var(--text-2);
}
.hero-note{
  margin-top:20px;
  font-size:13.5px;
  color:var(--text-2);
  display:flex;
  align-items:center;
  gap:10px;
}
.hero-note::before{
  content:"";
  width:26px;
  height:2px;
  border-radius:2px;
  background:var(--grad);
  flex-shrink:0;
}
.badge-row{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:32px;
}
.stat-badge{
  display:inline-flex;
  flex-direction:column;
  gap:2px;
  min-width:132px;
  padding:14px 20px;
  border-radius:20px;
  background:rgba(255,255,255,.035);
  border:1px solid transparent;
  background-image:linear-gradient(rgba(255,255,255,.035),rgba(255,255,255,.035)),var(--grad);
  background-origin:border-box;
  background-clip:padding-box,border-box;
  transition:transform .18s ease,filter .18s ease;
}
.stat-badge:hover{transform:translateY(-2px);filter:brightness(1.08);}
.stat-badge b{
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-size:32px;
  line-height:1.1;
  font-weight:700;
  background:var(--grad);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.stat-badge span{
  font-size:13px;
  color:var(--text-2);
  letter-spacing:.04em;
}
/* ---------- 提示条 ---------- */
.notice-bar{
  background:linear-gradient(90deg,rgba(108,75,255,.16),rgba(255,61,154,.10) 55%,transparent);
  border-bottom:1px solid var(--line);
}
.notice-inner{
  display:flex;
  align-items:center;
  gap:14px;
  padding:16px 0;
  font-size:14.5px;
  color:var(--text-2);
}
.notice-tag{
  flex-shrink:0;
  font-size:12px;
  font-weight:700;
  letter-spacing:.08em;
  padding:5px 12px;
  border-radius:999px;
  background:rgba(255,194,75,.12);
  border:1px solid rgba(255,194,75,.42);
  color:var(--gold);
}
/* ---------- 区块通用 ---------- */
.section{
  padding:96px 0;
  position:relative;
}
.section-alt{
  background:linear-gradient(180deg,rgba(21,26,39,.75),rgba(11,13,20,0));
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.section-head{
  max-width:780px;
  margin-bottom:52px;
}
.section-title{
  font-size:clamp(24px,3vw,36px);
  line-height:1.25;
  font-weight:700;
  color:#fff;
}
.section-sub{
  margin-top:14px;
  font-size:16px;
  color:var(--text-2);
  line-height:1.85;
}
/* ---------- 时间线 ---------- */
.timeline{
  position:relative;
  padding-left:38px;
}
.timeline::before{
  content:"";
  position:absolute;
  left:11px;
  top:8px;
  bottom:8px;
  width:2px;
  border-radius:2px;
  background:linear-gradient(180deg,#6C4BFF 0%,#FF3D9A 58%,#FFC24B 100%);
  opacity:.85;
}
.tl-item{
  position:relative;
  padding:0 0 34px 0;
}
.tl-item:last-child{padding-bottom:0;}
.tl-dot{
  position:absolute;
  left:-38px;
  top:8px;
  width:24px;
  height:24px;
  border-radius:50%;
  background:var(--bg);
  border:2px solid transparent;
  background-image:linear-gradient(var(--bg),var(--bg)),var(--grad);
  background-origin:border-box;
  background-clip:padding-box,border-box;
  display:grid;
  place-items:center;
  box-shadow:0 0 18px rgba(108,75,255,.55);
}
.tl-dot i{
  width:8px;
  height:8px;
  border-radius:50%;
  background:var(--grad);
  display:block;
}
.tl-card{
  background:rgba(255,255,255,.035);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:24px 26px;
  box-shadow:var(--shadow-soft);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.tl-card:hover{
  transform:translateY(-4px);
  border-color:rgba(108,75,255,.55);
  box-shadow:var(--shadow-glow);
}
.tl-step{
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-size:12.5px;
  letter-spacing:.14em;
  color:var(--gold);
  font-weight:700;
}
.tl-card h3{
  margin-top:8px;
  font-size:21px;
  font-weight:600;
  color:#fff;
}
.tl-card p{
  margin-top:12px;
  color:var(--text-2);
  font-size:15.5px;
  line-height:1.85;
}
.tl-points{
  margin-top:16px;
  display:grid;
  gap:9px;
}
.tl-points li{
  position:relative;
  padding-left:20px;
  font-size:14.5px;
  color:var(--text-2);
  line-height:1.75;
}
.tl-points li::before{
  content:"";
  position:absolute;
  left:0;
  top:9px;
  width:8px;
  height:8px;
  border-radius:2px;
  background:linear-gradient(135deg,#35E6C0,#6C4BFF);
}
.tl-points li strong{color:#fff;font-weight:600;}
/* ---------- 速查卡 ---------- */
.check-grid{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:24px;
}
.check-card{
  grid-column:span 6;
  display:flex;
  flex-direction:column;
  background:rgba(255,255,255,.035);
  border:1px solid var(--line);
  border-radius:var(--radius-xl);
  overflow:hidden;
  box-shadow:var(--shadow);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.check-card:hover{
  transform:translateY(-4px);
  border-color:rgba(255,61,154,.5);
  box-shadow:var(--shadow-glow);
}
.check-card.offset{margin-top:44px;}
.check-figure{
  position:relative;
  aspect-ratio:16/9;
  overflow:hidden;
  background:#0F1320;
}
.check-figure img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .35s ease;
  opacity:.86;
}
.check-card:hover .check-figure img{transform:scale(1.05);}
.check-figure::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(11,13,20,.15),rgba(11,13,20,.72));
}
.check-tag{
  position:absolute;
  left:18px;
  bottom:16px;
  z-index:2;
  font-size:12px;
  letter-spacing:.06em;
  padding:5px 13px;
  border-radius:999px;
  border:1px solid rgba(53,230,192,.5);
  background:rgba(11,13,20,.6);
  color:var(--mint);
}
.check-body{
  padding:26px 28px 28px;
}
.check-body h3{
  font-size:20px;
  font-weight:600;
  color:#fff;
}
.check-body p{
  margin-top:12px;
  font-size:15px;
  color:var(--text-2);
  line-height:1.85;
}
.check-list{
  margin-top:16px;
  display:grid;
  gap:10px;
  border-top:1px dashed var(--line-strong);
  padding-top:16px;
}
.check-list li{
  display:flex;
  gap:10px;
  font-size:14.5px;
  color:var(--text-2);
  line-height:1.7;
}
.check-list li span{
  flex-shrink:0;
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  color:var(--brand-2);
  font-weight:700;
}
/* ---------- FAQ ---------- */
.faq-list{
  display:grid;
  gap:16px;
  max-width:920px;
}
.faq-item{
  border-radius:var(--radius-md);
  background:rgba(255,255,255,.03);
  border:1px solid var(--line);
  overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item[open]{
  border-color:rgba(108,75,255,.55);
  box-shadow:0 0 0 1px rgba(108,75,255,.25),0 14px 34px rgba(4,6,14,.4);
}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:20px 24px;
  font-size:17.5px;
  font-weight:600;
  color:#fff;
  transition:background .18s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{background:rgba(255,255,255,.035);}
.faq-icon{
  position:relative;
  flex-shrink:0;
  width:26px;
  height:26px;
  border-radius:50%;
  border:1px solid rgba(108,75,255,.6);
  background:rgba(108,75,255,.14);
}
.faq-icon::before,
.faq-icon::after{
  content:"";
  position:absolute;
  left:50%;
  top:50%;
  background:var(--brand-2);
  border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:12px;height:2px;}
.faq-icon::after{width:2px;height:12px;transition:transform .2s ease;}
.faq-item[open] .faq-icon::after{transform:translate(-50%,-50%) scaleY(0);}
.faq-answer{
  padding:0 24px 22px 24px;
  font-size:15px;
  line-height:1.9;
  color:var(--text-2);
  border-left:3px solid transparent;
  background-image:linear-gradient(180deg,rgba(108,75,255,.06),transparent);
}
.faq-item[open] .faq-answer{
  border-left-color:var(--brand-2);
  padding-left:21px;
}
.faq-answer strong{color:#fff;font-weight:600;}
/* ---------- CTA 条 ---------- */
.cta-bar{
  padding:0 0 96px;
}
.cta-panel{
  position:relative;
  overflow:hidden;
  border-radius:var(--radius-xl);
  background:linear-gradient(120deg,rgba(108,75,255,.24),rgba(255,61,154,.16)) ,var(--panel);
  border:1px solid rgba(108,75,255,.4);
  padding:40px 44px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  box-shadow:var(--shadow);
}
.cta-panel::before{
  content:"";
  position:absolute;
  right:-80px;
  top:-90px;
  width:280px;
  height:280px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(255,61,154,.32),transparent 68%);
  pointer-events:none;
}
.cta-panel h2{
  position:relative;
  font-size:clamp(22px,2.4vw,30px);
  font-weight:700;
  color:#fff;
  line-height:1.35;
}
.cta-panel p{
  position:relative;
  margin-top:10px;
  font-size:15px;
  color:var(--text-2);
  max-width:620px;
}
.cta-actions{
  position:relative;
  display:flex;
  gap:14px;
  flex-shrink:0;
  flex-wrap:wrap;
}
/* ---------- 页脚 ---------- */
.site-footer{
  border-top:1px solid var(--line);
  background:#080A11;
  padding-top:72px;
}
.site-footer::before{
  content:"";
  display:block;
  height:2px;
  width:38%;
  min-width:200px;
  background:var(--grad);
  margin-top:-1px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:12px;
  font-size:17px;
  font-weight:700;
  color:#fff;
}
.footer-desc{
  margin-top:16px;
  font-size:14px;
  line-height:1.85;
  color:var(--text-2);
  max-width:360px;
}
.footer-title{
  font-size:15px;
  font-weight:600;
  color:#fff;
  margin-bottom:16px;
}
.footer-links{
  display:grid;
  gap:11px;
}
.footer-links a{
  font-size:14px;
  color:var(--text-2);
  width:fit-content;
}
.footer-links a:hover{color:var(--mint);}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:22px 0 30px;
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  justify-content:space-between;
  font-size:13px;
  color:var(--text-2);
}
.footer-bottom a{color:var(--text-2);text-decoration:underline;text-decoration-color:rgba(255,255,255,.22);}
.footer-bottom a:hover{color:var(--mint);}
/* ---------- 入场动画 ---------- */
.reveal{
  opacity:0;
  transform:translateY(12px);
  transition:opacity .55s ease,transform .55s ease;
}
.reveal.is-in{
  opacity:1;
  transform:none;
}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;transition:none;}
  *{transition:none !important;animation:none !important;}
}
/* ---------- 响应式 ---------- */
@media screen and (max-width:1279px){
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px;}
}
@media screen and (max-width:1023px){
  .container{padding-left:24px;padding-right:24px;}
  .nav-toggle{display:flex;}
  .main-nav{
    position:fixed;
    inset:74px 0 0 0;
    flex-direction:column;
    align-items:stretch;
    gap:6px;
    padding:28px 24px 40px;
    background:rgba(8,10,17,.985);
    border-top:1px solid var(--line);
    transform:translateY(-8px);
    opacity:0;
    visibility:hidden;
    overflow-y:auto;
    transition:opacity .22s ease,transform .22s ease,visibility .22s;
  }
  .main-nav.is-open{
    opacity:1;
    visibility:visible;
    transform:none;
  }
  .main-nav .nav-link{
    display:block;
    padding:16px 18px;
    font-size:16.5px;
    border-radius:14px;
    border:1px solid var(--line);
    background:rgba(255,255,255,.03);
  }
  .main-nav .nav-link::after{display:none;}
  .main-nav .nav-link.is-active{
    border-color:rgba(108,75,255,.55);
    box-shadow:0 0 0 1px rgba(108,75,255,.3);
  }
  .nav-actions .btn-sm{display:none;}
  .section{padding:72px 0;}
  .page-hero{padding:68px 0 58px;}
  .timeline{padding-left:32px;}
  .timeline::before{left:9px;}
  .tl-dot{left:-32px;width:20px;height:20px;}
  .tl-dot i{width:7px;height:7px;}
  .check-card{grid-column:span 12;}
  .check-card.offset{margin-top:0;}
  .cta-bar{padding-bottom:72px;}
  .cta-panel{flex-direction:column;align-items:flex-start;padding:32px 28px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
}
@media screen and (max-width:639px){
  .container{padding-left:20px;padding-right:20px;}
  body{font-size:15.5px;}
  .nav-wrap{height:66px;gap:12px;}
  .brand-text{font-size:15px;}
  .brand-mark{width:30px;height:30px;}
  .main-nav{inset:68px 0 0 0;padding:22px 20px 36px;}
  .section{padding:56px 0;}
  .page-hero{padding:52px 0 46px;}
  .hero-lead{font-size:15.5px;}
  .badge-row{gap:10px;}
  .stat-badge{min-width:0;flex:1 1 130px;padding:12px 16px;}
  .stat-badge b{font-size:26px;}
  .notice-inner{flex-direction:column;align-items:flex-start;gap:8px;padding:14px 0;}
  .timeline{padding-left:26px;}
  .timeline::before{left:7px;width:2px;}
  .tl-dot{left:-26px;width:16px;height:16px;top:10px;}
  .tl-dot i{width:6px;height:6px;}
  .tl-card{padding:20px 18px;}
  .tl-card h3{font-size:18px;}
  .check-body{padding:20px 18px 22px;}
  .faq-item summary{padding:17px 18px;font-size:16px;}
  .faq-answer{padding:0 18px 18px 18px;}
  .faq-item[open] .faq-answer{padding-left:15px;}
  .cta-panel{padding:26px 20px;border-radius:20px;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding-bottom:36px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .site-footer{padding-top:56px;}
}