/* roulang page: index */
:root{
  --deep:#120A24;
  --purple:#4A1D8C;
  --purple-light:#7B3BE0;
  --orange:#FF6B2C;
  --cyan:#2BD9C0;
  --paper:#F6F3FA;
  --card:#FFFFFF;
  --line:#E7E1F0;
  --ink:#1C1430;
  --muted:#6A6280;
  --grad-brand:linear-gradient(120deg,#2A1050 0%,#4A1D8C 45%,#7B3BE0 100%);
  --grad-star:linear-gradient(90deg,#FF6B2C 0%,#FFB03A 100%);
  --r-lg:28px;
  --r-md:24px;
  --r-img:20px;
  --r-btn:14px;
  --shadow-1:0 2px 8px rgba(28,20,48,.06);
  --shadow-2:0 18px 40px -18px rgba(74,29,140,.28);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  background:var(--paper);
  color:var(--ink);
  font-size:16px;
  line-height:1.85;
  overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
h1,h2,h3,h4,p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--orange);outline-offset:3px;border-radius:6px;}

/* ===== 容器 ===== */
.container{max-width:1200px;margin:0 auto;padding:0 48px;}
@media(max-width:1279px){.container{padding:0 36px;}}
@media(max-width:1023px){.container{padding:0 28px;}}
@media(max-width:520px){.container{padding:0 20px;}}

/* ===== 侧边栏 ===== */
.sidebar{
  position:fixed;
  top:0;left:0;bottom:0;
  width:240px;
  background:#FFFFFF;
  border-right:1px solid var(--line);
  padding:28px 18px 22px;
  display:flex;
  flex-direction:column;
  gap:26px;
  z-index:70;
  overflow-y:auto;
}
.brand{display:flex;align-items:center;gap:11px;padding:0 6px;}
.brand-mark{
  width:40px;height:40px;flex:0 0 40px;border-radius:13px;
  background:var(--grad-brand);
  display:grid;place-items:center;
  box-shadow:0 8px 18px -10px rgba(74,29,140,.9);
}
.brand-mark svg{width:20px;height:20px;fill:#FFD9A8;}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-text strong{font-size:16px;font-weight:800;letter-spacing:-.01em;color:var(--ink);}
.brand-text em{font-style:normal;font-size:12px;color:var(--muted);letter-spacing:.08em;}
.side-nav{display:flex;flex-direction:column;gap:4px;}
.side-label{
  font-size:11px;letter-spacing:.18em;color:#A79FC0;
  padding:0 16px 8px;font-weight:600;
}
.side-link{
  display:block;position:relative;
  padding:11px 16px;border-radius:12px;
  color:var(--muted);font-size:15px;font-weight:500;
  transition:color .2s var(--ease),background .2s var(--ease),transform .2s var(--ease);
}
.side-link:hover{color:var(--purple);background:#F7F3FD;transform:translateX(2px);}
.side-link.active{color:var(--purple);background:#F0E9FB;font-weight:600;}
.side-link.active::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:22px;border-radius:2px;background:var(--orange);
}
.side-cta{
  margin-top:auto;background:#F7F3FD;border:1px solid var(--line);
  border-radius:18px;padding:16px;
}
.side-cta p{font-size:13px;line-height:1.7;color:var(--muted);margin-bottom:12px;}
.side-cta .btn-primary{width:100%;justify-content:center;padding:11px 14px;font-size:14px;}
.side-contact{font-size:12px;color:#A79FC0;line-height:1.9;padding:0 6px;}

/* ===== 移动端顶栏 ===== */
.mobile-bar{
  display:none;position:sticky;top:0;z-index:80;
  height:68px;align-items:center;justify-content:space-between;
  padding:0 20px;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.mobile-bar .brand{padding:0;}
.menu-btn{
  width:44px;height:44px;border-radius:12px;
  background:#F0E9FB;display:grid;place-items:center;gap:4px;
}
.menu-btn span{display:block;width:18px;height:2px;border-radius:2px;background:var(--purple);}
.drawer{
  position:fixed;inset:0;z-index:95;background:var(--paper);
  display:none;flex-direction:column;padding:24px 20px;overflow-y:auto;
}
.drawer.open{display:flex;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;}
.drawer-close{
  width:42px;height:42px;border-radius:12px;background:#FFFFFF;
  border:1px solid var(--line);display:grid;place-items:center;
  font-size:20px;color:var(--purple);line-height:1;
}
.drawer-nav{display:flex;flex-direction:column;}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  height:56px;border-bottom:1px solid var(--line);
  font-size:16px;color:var(--ink);font-weight:500;
}
.drawer-nav a.active{color:var(--purple);font-weight:700;}
.drawer-cta{margin-top:26px;display:flex;flex-direction:column;gap:12px;}

/* ===== 内容区 ===== */
.content{margin-left:240px;min-height:100vh;}
@media(max-width:1023px){
  .sidebar{display:none;}
  .content{margin-left:0;}
  .mobile-bar{display:flex;}
}

/* ===== 按钮 ===== */
.btn-primary{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--grad-star);color:#fff;
  font-size:15px;font-weight:600;
  padding:14px 28px;border-radius:var(--r-btn);
  box-shadow:0 10px 24px -14px rgba(255,107,44,.9);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),filter .24s var(--ease);
}
.btn-primary:hover{filter:brightness(1.07);transform:translateY(-2px);box-shadow:0 16px 30px -14px rgba(255,107,44,.75);}
.btn-primary:active{transform:translateY(0) scale(.99);}
.btn-outline{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1.5px solid var(--purple);color:var(--purple);
  font-size:15px;font-weight:600;padding:13px 26px;border-radius:var(--r-btn);
  background:transparent;
  transition:background .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease);
}
.btn-outline:hover{background:rgba(74,29,140,.08);border-color:var(--purple-light);transform:translateY(-2px);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1px solid rgba(255,255,255,.38);color:#fff;
  font-size:15px;font-weight:600;padding:13px 26px;border-radius:var(--r-btn);
  transition:background .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease);
}
.btn-ghost:hover{background:rgba(255,255,255,.13);border-color:rgba(255,255,255,.6);transform:translateY(-2px);}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--purple);font-size:15px;font-weight:600;
  transition:color .2s var(--ease);
}
.link-arrow svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:2;transition:transform .24s var(--ease);}
.link-arrow:hover{color:var(--orange);}
.link-arrow:hover svg{transform:translateX(4px);}

/* ===== Hero ===== */
.hero{
  position:relative;overflow:hidden;
  background:var(--grad-brand);
  color:#fff;
  padding:84px 0 96px;
  border-radius:0 0 48px 48px;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.16) 1px,transparent 1px);
  background-size:44px 44px;
  opacity:.35;
  -webkit-mask-image:linear-gradient(115deg,rgba(0,0,0,.9),transparent 62%);
  mask-image:linear-gradient(115deg,rgba(0,0,0,.9),transparent 62%);
  pointer-events:none;
}
.hero-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.08fr .92fr;
  gap:56px;align-items:center;
}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 16px;border-radius:999px;
  background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.2);
  font-size:12px;font-weight:600;letter-spacing:.1em;
  color:#F1E8FF;
}
.hero-badge i{width:6px;height:6px;border-radius:50%;background:var(--cyan);display:block;}
.hero h1{
  font-size:52px;line-height:1.15;font-weight:800;letter-spacing:-.02em;
  margin:22px 0 18px;
}
.hero-sub{font-size:17px;line-height:1.9;color:#DCD3F2;max-width:560px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-badges{display:flex;flex-wrap:wrap;gap:12px;margin-top:38px;}
.hero .badge-data{
  display:flex;align-items:baseline;gap:9px;
  background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.16);
  border-radius:999px;padding:10px 20px;
}
.hero .badge-num{font-size:24px;font-weight:800;color:#fff;letter-spacing:.02em;line-height:1;}
.hero .badge-label{font-size:12px;color:#C9BDE6;}
.hero-visual{position:relative;}
.hero-visual>img{
  width:100%;aspect-ratio:16/11;object-fit:cover;
  border-radius:var(--r-lg);
  border:1px solid rgba(255,255,255,.18);
  box-shadow:0 30px 60px -30px rgba(0,0,0,.8);
}
.float-card{
  position:absolute;left:-18px;bottom:22px;
  display:flex;align-items:center;gap:12px;
  padding:13px 18px;border-radius:18px;
  background:rgba(18,10,36,.72);
  border:1px solid rgba(255,255,255,.18);
  backdrop-filter:blur(10px);
}
.float-card .dot-cyan{width:10px;height:10px;border-radius:50%;background:var(--cyan);box-shadow:0 0 0 5px rgba(43,217,192,.18);}
.float-card strong{display:block;font-size:14px;font-weight:700;color:#fff;line-height:1.4;}
.float-card span{display:block;font-size:12px;color:#B8AAD6;line-height:1.5;}

/* ===== 板块通用 ===== */
.section{padding:96px 0;}
.section.alt{background:#FFFFFF;}
.section.deep{background:var(--deep);color:#fff;}
.sec-head{margin-bottom:44px;max-width:760px;}
.sec-head-row{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:24px;max-width:none;
}
.sec-tag{
  display:inline-flex;align-items:center;
  padding:5px 14px;border-radius:999px;
  background:#F0E9FB;color:var(--purple);
  font-size:12px;font-weight:700;letter-spacing:.08em;
}
.sec-title{font-size:34px;line-height:1.28;font-weight:700;letter-spacing:-.01em;margin-top:14px;}
.sec-desc{font-size:15px;color:var(--muted);margin-top:14px;line-height:1.9;}
.deep .sec-tag{background:rgba(255,255,255,.12);color:#E8DDFF;border:1px solid rgba(255,255,255,.16);}
.deep .sec-title{color:#fff;}
.deep .sec-desc{color:#B8AAD6;}

/* ===== 卡片 ===== */
.card-star{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--shadow-1);
  transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
}
.card-star:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(74,29,140,.32);}
.tag-cyan{
  display:inline-flex;align-items:center;
  padding:3px 12px;border-radius:999px;
  border:1px solid rgba(43,217,192,.55);
  color:#12897A;background:rgba(43,217,192,.1);
  font-size:12px;font-weight:600;
}
.icon-pill{
  width:46px;height:46px;border-radius:14px;
  background:#F0E9FB;color:var(--purple);
  display:grid;place-items:center;
}
.icon-pill svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}

/* ===== 价值主张 ===== */
.value-grid{display:grid;grid-template-columns:1.85fr 1fr;gap:24px;align-items:stretch;}
.value-main{overflow:hidden;display:flex;flex-direction:column;}
.value-main img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.value-main-body{padding:30px 32px 34px;}
.value-main-body h3{font-size:22px;font-weight:700;line-height:1.4;margin-bottom:12px;}
.value-main-body p{font-size:15px;color:var(--muted);line-height:1.9;}
.value-side{display:grid;grid-template-rows:1fr 1fr;gap:24px;}
.value-mini{padding:26px 26px 28px;display:flex;flex-direction:column;gap:14px;}
.value-mini h3{font-size:18px;font-weight:700;line-height:1.45;}
.value-mini p{font-size:14px;color:var(--muted);line-height:1.85;}

/* ===== 功能分组 ===== */
.feature-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:24px;}
.feature-card{padding:30px 30px 28px;display:flex;flex-direction:column;gap:16px;}
.feature-card h3{font-size:20px;font-weight:700;line-height:1.45;}
.feature-card p{font-size:14.5px;color:var(--muted);line-height:1.88;}
.feature-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:2px;}
.feature-card .link-arrow{margin-top:auto;font-size:14px;}

/* ===== 场景时间轴 ===== */
.timeline{position:relative;padding-left:36px;}
.timeline::before{
  content:"";position:absolute;left:11px;top:10px;bottom:10px;
  width:2px;background:linear-gradient(180deg,rgba(74,29,140,.28),rgba(74,29,140,.06));
  border-radius:2px;
}
.tl-item{position:relative;padding-bottom:38px;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
  content:"";position:absolute;left:-31px;top:12px;
  width:12px;height:12px;border-radius:50%;
  background:#fff;border:3px solid var(--purple-light);
}
.tl-inner{
  display:grid;grid-template-columns:64px 1fr 220px;
  gap:26px;align-items:center;
  background:#FFFFFF;border:1px solid var(--line);
  border-radius:var(--r-md);padding:26px 28px;
  box-shadow:var(--shadow-1);
  transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
}
.tl-inner:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(74,29,140,.3);}
.tl-num{
  font-size:34px;font-weight:800;line-height:1;
  background:linear-gradient(120deg,#4A1D8C,#7B3BE0);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  letter-spacing:.02em;
}
.tl-body h3{font-size:19px;font-weight:700;line-height:1.5;margin-bottom:8px;}
.tl-body p{font-size:14.5px;color:var(--muted);line-height:1.85;}
.tl-inner img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:16px;}

/* ===== 案例深色带 ===== */
.band{
  background:var(--grad-brand);
  color:#fff;position:relative;overflow:hidden;
  border-radius:36px;
  padding:64px 56px;
}
.band::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.15) 1px,transparent 1px);
  background-size:52px 52px;opacity:.3;pointer-events:none;
  -webkit-mask-image:radial-gradient(circle at 80% 20%,#000,transparent 70%);
  mask-image:radial-gradient(circle at 80% 20%,#000,transparent 70%);
}
.band>*{position:relative;z-index:2;}
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:36px;}
.case-card{
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.16);
  border-radius:22px;padding:24px;
  transition:background .26s var(--ease),transform .26s var(--ease);
}
.case-card:hover{background:rgba(255,255,255,.13);transform:translateY(-4px);}
.case-card h3{font-size:17px;font-weight:700;margin-bottom:10px;color:#fff;}
.case-card p{font-size:14px;line-height:1.85;color:#CFC4EA;}
.case-card .case-tag{
  display:inline-block;font-size:11.5px;letter-spacing:.08em;
  color:var(--cyan);border:1px solid rgba(43,217,192,.45);
  border-radius:999px;padding:2px 10px;margin-bottom:14px;
}
.case-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:36px;}
.case-stat{
  background:rgba(255,255,255,.07);
  border:1px solid rgba(255,255,255,.14);
  border-radius:18px;padding:18px 20px;
}
.case-stat b{display:block;font-size:26px;font-weight:800;color:#fff;line-height:1.2;letter-spacing:.02em;}
.case-stat span{display:block;font-size:12.5px;color:#B8AAD6;margin-top:4px;}

/* ===== 最新信息 ===== */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{display:flex;flex-direction:column;overflow:hidden;}
.news-cover{overflow:hidden;}
.news-cover img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .4s var(--ease);}
.news-card:hover .news-cover img{transform:scale(1.04);}
.news-body{padding:22px 22px 20px;display:flex;flex-direction:column;gap:12px;flex:1;}
.news-title{
  font-size:17px;font-weight:700;line-height:1.55;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-desc{
  font-size:14px;color:var(--muted);line-height:1.8;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  font-size:13px;color:#8B839F;
}
.news-meta .news-arrow{color:var(--purple);font-weight:600;transition:transform .22s var(--ease);}
.news-card:hover .news-meta .news-arrow{transform:translateX(3px);}
.news-empty{
  grid-column:1/-1;
  border:2px dashed #D9CDF0;border-radius:var(--r-md);
  background:#FBF8FF;padding:48px 32px;text-align:center;
}
.news-empty .empty-icon{
  width:54px;height:54px;border-radius:16px;background:#F0E9FB;color:var(--purple);
  display:grid;place-items:center;margin:0 auto 16px;
}
.news-empty p{font-size:15px;color:var(--muted);margin-bottom:18px;}

/* ===== 价格方案 ===== */
.plan-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch;}
.plan-card{padding:32px 28px 30px;display:flex;flex-direction:column;position:relative;}
.plan-card h3{font-size:19px;font-weight:700;margin-bottom:8px;}
.plan-price{display:flex;align-items:baseline;gap:6px;margin-bottom:6px;}
.plan-price b{font-size:32px;font-weight:800;letter-spacing:.02em;line-height:1.1;}
.plan-price span{font-size:13px;color:var(--muted);}
.plan-note{font-size:13.5px;color:var(--muted);line-height:1.8;margin-bottom:22px;}
.plan-list{display:flex;flex-direction:column;gap:12px;margin-bottom:28px;}
.plan-list li{display:flex;gap:10px;font-size:14.5px;line-height:1.75;color:#3A3152;}
.plan-list svg{width:17px;height:17px;flex:0 0 17px;margin-top:5px;stroke:var(--cyan);fill:none;stroke-width:2.4;stroke-linecap:round;stroke-linejoin:round;}
.plan-card .btn-outline,.plan-card .btn-primary{margin-top:auto;width:100%;}
.plan-card.featured{
  background:var(--grad-brand);
  border-color:transparent;color:#fff;
  transform:scale(1.03);
  box-shadow:0 26px 60px -28px rgba(74,29,140,.9);
}
.plan-card.featured:hover{transform:scale(1.03) translateY(-4px);}
.plan-card.featured h3{color:#fff;}
.plan-card.featured .plan-price b{color:#fff;}
.plan-card.featured .plan-price span,
.plan-card.featured .plan-note{color:#C9BDE6;}
.plan-card.featured .plan-list li{color:#E6DEFF;}
.plan-flag{
  position:absolute;top:20px;right:20px;
  background:var(--grad-star);color:#fff;
  font-size:12px;font-weight:700;letter-spacing:.06em;
  padding:4px 12px;border-radius:999px;
}

/* ===== FAQ ===== */
.faq-wrap{max-width:860px;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:first-child{border-top:1px solid var(--line);}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  width:100%;padding:22px 0;text-align:left;
  font-size:17px;font-weight:600;line-height:1.6;color:var(--ink);
  transition:color .2s var(--ease);
}
.faq-q:hover{color:var(--purple);}
.faq-icon{
  width:28px;height:28px;flex:0 0 28px;border-radius:50%;
  background:#F0E9FB;color:var(--purple);
  display:grid;place-items:center;font-size:18px;line-height:1;
  transition:transform .3s var(--ease),background .3s var(--ease),color .3s var(--ease);
}
.faq-item.open .faq-icon{transform:rotate(45deg);background:#FFE9DF;color:var(--orange);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .34s var(--ease);}
.faq-a p{margin:0 0 24px;font-size:15px;line-height:1.85;color:var(--muted);padding-right:46px;}
.faq-item.open .faq-a{max-height:340px;}

/* ===== CTA ===== */
.cta-band{
  max-width:1104px;margin:0 auto;
  background:var(--grad-brand);
  border-radius:var(--r-lg);
  padding:52px 56px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  color:#fff;position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.16) 1px,transparent 1px);
  background-size:46px 46px;opacity:.32;pointer-events:none;
  -webkit-mask-image:linear-gradient(90deg,#000,transparent 70%);
  mask-image:linear-gradient(90deg,#000,transparent 70%);
}
.cta-band>*{position:relative;z-index:2;}
.cta-band h2{font-size:30px;font-weight:800;line-height:1.3;letter-spacing:-.01em;}
.cta-band p{font-size:15px;color:#CFC4EA;margin-top:10px;max-width:560px;}

/* ===== 页脚 ===== */
.site-footer{background:var(--deep);color:#B8AAD6;padding:72px 0 28px;margin-top:96px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:18px;}
.footer-brand .brand-mark{box-shadow:none;}
.footer-brand strong{font-size:16px;font-weight:800;color:#fff;line-height:1.3;display:block;}
.footer-brand em{font-style:normal;font-size:12px;color:#8B7EAE;letter-spacing:.08em;display:block;}
.footer-about{font-size:14px;line-height:1.9;color:#9C90BC;max-width:320px;}
.footer-title{font-size:13px;font-weight:700;color:#fff;letter-spacing:.1em;margin-bottom:18px;}
.footer-links{display:flex;flex-direction:column;gap:2px;}
.footer-links a,.footer-links span{
  font-size:15px;line-height:2.2;color:#9C90BC;
  transition:color .22s var(--ease);
}
.footer-links a:hover{color:var(--cyan);}
.footer-bottom{
  margin-top:52px;padding-top:24px;
  border-top:1px solid rgba(255,255,255,.08);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:#7E739C;
}

/* ===== 响应式 ===== */
@media(max-width:1279px){
  .hero h1{font-size:44px;}
  .case-grid{grid-template-columns:repeat(2,1fr);}
  .case-stats{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px;}
}
@media(max-width:1023px){
  .hero{padding:64px 0 72px;border-radius:0 0 36px 36px;}
  .hero-inner{grid-template-columns:1fr;gap:40px;}
  .hero h1{font-size:38px;}
  .hero-visual{max-width:560px;}
  .section{padding:68px 0;}
  .sec-title{font-size:28px;}
  .value-grid{grid-template-columns:1fr;}
  .value-side{grid-template-rows:auto;grid-template-columns:1fr 1fr;}
  .feature-grid{grid-template-columns:1fr 1fr;}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .plan-grid{grid-template-columns:1fr;gap:20px;}
  .plan-card.featured{transform:none;}
  .plan-card.featured:hover{transform:translateY(-4px);}
  .tl-inner{grid-template-columns:52px 1fr;}
  .tl-inner img{display:none;}
  .band{padding:44px 32px;border-radius:28px;}
  .cta-band{padding:40px 32px;flex-direction:column;align-items:flex-start;gap:22px;}
  .site-footer{margin-top:68px;padding:56px 0 24px;}
}
@media(max-width:767px){
  .sec-head-row{flex-direction:column;align-items:flex-start;gap:14px;}
  .hero h1{font-size:32px;}
  .hero-sub{font-size:15.5px;}
  .hero-badges{gap:10px;}
  .hero .badge-data{padding:8px 14px;}
  .hero .badge-num{font-size:20px;}
  .case-grid{grid-template-columns:1fr;}
  .case-stats{grid-template-columns:1fr 1fr;}
  .news-grid{grid-template-columns:1fr;}
  .feature-grid{grid-template-columns:1fr;}
  .value-side{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .cta-band h2{font-size:24px;}
  .timeline{padding-left:28px;}
  .tl-inner{padding:22px 20px;gap:18px;grid-template-columns:1fr;}
  .tl-num{font-size:26px;}
  .faq-a p{padding-right:0;}
}
@media(max-width:520px){
  .hero{padding:48px 0 56px;}
  .hero h1{font-size:28px;line-height:1.25;}
  .hero-actions .btn-primary,.hero-actions .btn-ghost{width:100%;}
  .section{padding:56px 0;}
  .sec-title{font-size:24px;}
  .band{padding:36px 22px;border-radius:24px;}
  .cta-band{border-radius:24px;padding:32px 22px;}
  .footer-grid{grid-template-columns:1fr;}
  .case-stats{grid-template-columns:1fr;}
  .float-card{left:8px;bottom:8px;padding:10px 14px;}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important;}
}

/* roulang page: category1 */
:root{
    --space:#120A24;
    --space-soft:#1B1033;
    --violet:#4A1D8C;
    --violet-lt:#7B3BE0;
    --violet-wash:#F0E9FB;
    --orange:#FF6B2C;
    --orange-lt:#FFB03A;
    --cyan:#2BD9C0;
    --paper:#F6F3FA;
    --card:#FFFFFF;
    --line:#E7E1F0;
    --ink:#1C1430;
    --muted:#6A6280;
    --r-xl:28px;
    --r-lg:24px;
    --r-md:20px;
    --r-sm:14px;
    --sh1:0 2px 8px rgba(28,20,48,.06);
    --sh2:0 18px 40px -18px rgba(74,29,140,.28);
    --grad:linear-gradient(120deg,#2A1050 0%,#4A1D8C 45%,#7B3BE0 100%);
    --grad-orange:linear-gradient(90deg,#FF6B2C 0%,#FFB03A 100%);
    --ease:cubic-bezier(.2,.7,.3,1);
    --sidebar:240px;
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;}
  body{
    margin:0;
    background:var(--paper);
    color:var(--ink);
    font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
    font-size:16px;
    line-height:1.85;
    -webkit-font-smoothing:antialiased;
  }
  a{color:inherit;text-decoration:none;}
  img{max-width:100%;display:block;}
  button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
  h1,h2,h3,h4,p,ul,ol{margin:0;}
  ul,ol{padding-left:0;list-style:none;}
  :focus-visible{outline:2px solid var(--orange);outline-offset:3px;border-radius:6px;}
  .num{font-variant-numeric:tabular-nums;letter-spacing:.02em;}

  .container{width:100%;max-width:1200px;margin:0 auto;padding:0 48px;}

  /* ============ 侧栏导航 ============ */
  .side-bar{
    position:fixed;left:0;top:0;width:var(--sidebar);height:100vh;
    background:#FFFFFF;border-right:1px solid var(--line);
    z-index:60;display:flex;flex-direction:column;
    overflow-y:auto;
  }
  .side-inner{display:flex;flex-direction:column;min-height:100%;padding:28px 20px 24px;}
  .brand-area{display:flex;align-items:center;gap:10px;padding:6px 6px 22px;border-bottom:1px solid var(--line);}
  .brand-mark{
    width:40px;height:40px;flex:0 0 40px;border-radius:13px;
    background:var(--grad);display:grid;place-items:center;
    box-shadow:0 8px 18px -10px rgba(74,29,140,.7);
  }
  .brand-mark svg{width:20px;height:20px;fill:#FFFFFF;}
  .brand-text{display:flex;flex-direction:column;line-height:1.25;}
  .brand-text strong{font-size:16px;font-weight:800;letter-spacing:-.01em;color:var(--ink);}
  .brand-text em{font-style:normal;font-size:12px;color:var(--muted);letter-spacing:.04em;}

  .side-nav{display:flex;flex-direction:column;gap:4px;margin-top:22px;}
  .side-label{font-size:11px;letter-spacing:.16em;color:#9A93AD;padding:0 12px 8px;}
  .side-link{
    position:relative;display:block;padding:11px 14px;border-radius:12px;
    font-size:15px;color:var(--muted);transition:all .24s var(--ease);
  }
  .side-link:hover{color:var(--violet);background:#F7F3FE;transform:translateX(2px);}
  .side-link.active{color:var(--violet);background:var(--violet-wash);font-weight:600;}
  .side-link.active::before{
    content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
    width:3px;height:20px;border-radius:0 3px 3px 0;background:var(--orange);
  }
  .side-cta{
    margin-top:auto;padding:18px;border-radius:var(--r-md);
    background:var(--violet-wash);border:1px solid #E3D7F7;
  }
  .side-cta p{font-size:13px;color:var(--violet);font-weight:600;line-height:1.6;margin-bottom:12px;}
  .side-btn{display:block;text-align:center;padding:11px 14px;font-size:14px;}
  .side-note{display:block;margin-top:10px;font-size:11px;color:#8B82A3;line-height:1.6;}

  /* ============ 移动端顶栏 ============ */
  .mobile-top{
    display:none;position:fixed;top:0;left:0;right:0;height:68px;z-index:70;
    background:rgba(255,255,255,.94);backdrop-filter:blur(10px);
    border-bottom:1px solid var(--line);align-items:center;justify-content:space-between;
    padding:0 20px;
  }
  .mt-brand{display:flex;align-items:center;gap:9px;}
  .mt-brand .brand-mark{width:34px;height:34px;flex:0 0 34px;border-radius:11px;}
  .mt-brand .brand-mark svg{width:17px;height:17px;}
  .mt-brand .brand-text strong{font-size:15px;}
  .mt-brand .brand-text em{font-size:11px;}
  .mt-toggle{
    width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
    display:grid;place-items:center;background:#FFFFFF;
  }
  .mt-toggle svg{width:20px;height:20px;stroke:var(--violet);stroke-width:2;fill:none;stroke-linecap:round;}
  .nav-mask{
    position:fixed;inset:0;background:rgba(18,10,36,.48);z-index:55;
    opacity:0;pointer-events:none;transition:opacity .28s var(--ease);
  }
  .nav-mask.show{opacity:1;pointer-events:auto;}

  /* ============ 布局 ============ */
  .page{margin-left:var(--sidebar);min-height:100vh;display:flex;flex-direction:column;}
  main{flex:1 1 auto;}
  .sec{padding:80px 0;}
  .sec-tight{padding:56px 0;}
  .sec-head{margin-bottom:36px;}
  .sec-kicker{
    display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;
    letter-spacing:.08em;color:var(--violet);
  }
  .sec-kicker::before{content:"";width:12px;height:2px;border-radius:2px;background:var(--orange);}
  .sec-title{font-size:clamp(24px,2.6vw,34px);font-weight:700;line-height:1.3;letter-spacing:-.01em;margin-top:10px;}
  .sec-desc{color:var(--muted);font-size:15.5px;max-width:760px;margin-top:12px;}

  /* ============ 按钮 ============ */
  .btn-primary{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    padding:14px 28px;border-radius:var(--r-sm);
    background:var(--grad-orange);color:#FFFFFF;font-size:15px;font-weight:600;
    box-shadow:0 10px 22px -12px rgba(255,107,44,.9);
    transition:all .26s var(--ease);
  }
  .btn-primary:hover{filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 16px 30px -14px rgba(255,107,44,.85);}
  .btn-primary:active{transform:translateY(0) scale(.99);}
  .btn-ghost{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    padding:13px 26px;border-radius:var(--r-sm);border:1.5px solid #C9B6E9;
    color:var(--violet);font-size:15px;font-weight:600;background:transparent;
    transition:all .26s var(--ease);
  }
  .btn-ghost:hover{background:rgba(74,29,140,.08);border-color:var(--violet);}
  .btn-light{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    padding:13px 26px;border-radius:var(--r-sm);border:1px solid rgba(255,255,255,.35);
    color:#FFFFFF;font-size:15px;font-weight:600;transition:all .26s var(--ease);
  }
  .btn-light:hover{background:rgba(255,255,255,.12);}
  .link-arrow{
    display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--violet);
  }
  .link-arrow span.ar{transition:transform .24s var(--ease);}
  .link-arrow:hover span.ar{transform:translateX(4px);}

  /* ============ 徽章 ============ */
  .badge-data{
    display:inline-flex;align-items:center;gap:10px;padding:10px 18px;border-radius:999px;
    background:var(--violet-wash);border:1px solid #E3D7F7;
  }
  .badge-data .bd-num{font-size:22px;font-weight:800;color:var(--violet);line-height:1;}
  .badge-data .bd-label{font-size:12px;color:var(--muted);line-height:1.2;}
  .badge-cyan{
    display:inline-flex;align-items:center;padding:3px 11px;border-radius:999px;
    border:1px solid rgba(43,217,192,.5);color:#0E8F7E;font-size:12px;font-weight:600;
    background:rgba(43,217,192,.1);
  }

  /* ============ 分类 Hero ============ */
  .cat-hero{
    position:relative;overflow:hidden;
    background:
      radial-gradient(circle at 82% 18%,rgba(123,59,224,.16) 0,transparent 46%),
      radial-gradient(circle at 12% 78%,rgba(43,217,192,.12) 0,transparent 42%),
      linear-gradient(135deg,#F1E9FC 0%,#F6F3FA 62%,#F3EEFB 100%);
    border-bottom:1px solid var(--line);
    padding:52px 0 60px;
  }
  .breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:14px;color:var(--muted);}
  .breadcrumb .dot{width:5px;height:5px;border-radius:50%;background:var(--orange);display:inline-block;}
  .breadcrumb .current{color:var(--ink);font-weight:600;}
  .breadcrumb a:hover{color:var(--violet);}
  .cat-hero-grid{
    display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,.85fr);
    gap:40px;align-items:end;margin-top:28px;
  }
  .cat-hero h1{
    font-size:clamp(30px,3.4vw,44px);line-height:1.16;font-weight:800;letter-spacing:-.02em;margin-top:16px;
  }
  .cat-hero .lead{
    margin-top:16px;font-size:16.5px;color:#4B4560;max-width:640px;line-height:1.85;
  }
  .hero-badges{display:flex;flex-direction:column;gap:12px;align-items:flex-start;}
  .hero-art{
    margin-top:30px;border-radius:var(--r-xl);overflow:hidden;
    border:1px solid rgba(231,225,240,.9);box-shadow:var(--sh2);
    aspect-ratio:21/7;position:relative;
  }
  .hero-art img{width:100%;height:100%;object-fit:cover;}
  .hero-art::after{
    content:"";position:absolute;inset:0;
    background:linear-gradient(90deg,rgba(42,16,80,.55) 0%,rgba(42,16,80,.12) 55%,rgba(42,16,80,0) 100%);
  }
  .hero-art-note{
    position:absolute;left:24px;bottom:20px;z-index:2;color:#FFFFFF;
    font-size:13px;line-height:1.7;letter-spacing:.02em;
  }
  .hero-art-note strong{display:block;font-size:16px;font-weight:700;margin-bottom:4px;}

  /* ============ 正文导语 ============ */
  .intro-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:32px;}
  .intro-block{
    background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
    padding:30px 32px;box-shadow:var(--sh1);
  }
  .intro-block p{color:#3B3450;font-size:15.5px;line-height:1.95;}
  .intro-block p + p{margin-top:14px;}
  .intro-block .ib-tag{
    display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:600;
    color:var(--violet);margin-bottom:14px;
  }
  .intro-block .ib-tag i{
    width:22px;height:22px;border-radius:8px;background:var(--violet-wash);
    display:grid;place-items:center;font-style:normal;font-size:12px;color:var(--violet);
  }

  /* ============ 编号步骤列表 ============ */
  .step-list{position:relative;display:flex;flex-direction:column;gap:20px;margin-top:8px;}
  .step-list::before{
    content:"";position:absolute;left:35px;top:18px;bottom:18px;width:2px;
    background:linear-gradient(180deg,#E2D6F6,#EFE9F9);border-radius:2px;
  }
  .step-item{
    position:relative;display:grid;grid-template-columns:72px minmax(0,1fr);
    gap:24px;align-items:start;
  }
  .step-num{
    position:relative;z-index:2;width:72px;height:72px;border-radius:22px;
    background:#FFFFFF;border:1px solid var(--line);box-shadow:var(--sh1);
    display:grid;place-items:center;
    font-size:22px;font-weight:800;color:var(--violet);
    transition:all .28s var(--ease);
  }
  .step-item:hover .step-num{border-color:rgba(123,59,224,.45);color:var(--orange);transform:translateY(-3px);box-shadow:var(--sh2);}
  .step-body{
    background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
    padding:24px 28px;box-shadow:var(--sh1);transition:all .28s var(--ease);
  }
  .step-item:hover .step-body{transform:translateY(-4px);box-shadow:var(--sh2);border-color:rgba(123,59,224,.3);}
  .step-body h3{font-size:19px;font-weight:700;line-height:1.45;color:var(--ink);}
  .step-body p{margin-top:10px;color:var(--muted);font-size:15px;line-height:1.85;}
  .step-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:16px;}
  .time-tag{
    display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:999px;
    background:var(--violet-wash);color:var(--violet);font-size:12.5px;font-weight:600;
  }
  .time-tag::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--orange);}

  /* ============ 要点清单卡 ============ */
  .check-wrap{
    background:var(--card);border:1px solid var(--line);border-radius:var(--r-xl);
    padding:34px 36px;box-shadow:var(--sh1);
  }
  .check-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px 28px;margin-top:22px;}
  .check-item{display:flex;gap:12px;align-items:flex-start;}
  .check-ico{
    flex:0 0 22px;width:22px;height:22px;border-radius:50%;margin-top:3px;
    background:rgba(43,217,192,.16);display:grid;place-items:center;
  }
  .check-ico svg{width:12px;height:12px;stroke:#0E8F7E;stroke-width:2.6;fill:none;stroke-linecap:round;stroke-linejoin:round;}
  .check-item p{font-size:15px;color:#3B3450;line-height:1.75;}
  .check-item p b{color:var(--ink);font-weight:700;}

  /* ============ 相关推荐 ============ */
  .rec-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
  .card-star{
    background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
    overflow:hidden;box-shadow:var(--sh1);transition:all .3s var(--ease);display:flex;flex-direction:column;
  }
  .card-star:hover{transform:translateY(-4px);box-shadow:var(--sh2);border-color:rgba(123,59,224,.32);}
  .card-cover{aspect-ratio:16/10;overflow:hidden;background:var(--grad);}
  .card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
  .card-star:hover .card-cover img{transform:scale(1.04);}
  .card-body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1 1 auto;}
  .card-body h3{font-size:17.5px;font-weight:700;line-height:1.5;color:var(--ink);}
  .card-body p{margin-top:10px;font-size:14.5px;color:var(--muted);line-height:1.8;flex:1 1 auto;}
  .card-foot{
    display:flex;align-items:center;justify-content:space-between;
    margin-top:18px;padding-top:14px;border-top:1px solid var(--line);
    font-size:13px;color:#8B82A3;
  }

  /* ============ FAQ ============ */
  .faq-list{border-top:1px solid var(--line);}
  .faq-item{border-bottom:1px solid var(--line);}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
    padding:22px 4px;text-align:left;font-size:17px;font-weight:600;color:var(--ink);
    line-height:1.6;transition:color .24s var(--ease);
  }
  .faq-q:hover{color:var(--violet);}
  .faq-ico{
    flex:0 0 28px;width:28px;height:28px;border-radius:50%;
    background:var(--violet-wash);position:relative;transition:all .28s var(--ease);
  }
  .faq-ico::before,.faq-ico::after{
    content:"";position:absolute;left:50%;top:50%;background:var(--violet);border-radius:2px;
    transform:translate(-50%,-50%);transition:all .28s var(--ease);
  }
  .faq-ico::before{width:12px;height:2px;}
  .faq-ico::after{width:2px;height:12px;}
  .faq-item.open .faq-ico{background:rgba(255,107,44,.15);transform:rotate(45deg);}
  .faq-item.open .faq-ico::before,.faq-item.open .faq-ico::after{background:var(--orange);}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .34s var(--ease);}
  .faq-a p{padding:0 48px 24px 4px;font-size:15px;color:var(--muted);line-height:1.9;}

  /* ============ CTA ============ */
  .cta-band{
    position:relative;overflow:hidden;border-radius:var(--r-xl);
    background:var(--grad);color:#FFFFFF;padding:46px 52px;
    display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px;
    box-shadow:0 26px 60px -34px rgba(74,29,140,.75);
  }
  .cta-band::before{
    content:"";position:absolute;inset:0;
    background-image:
      radial-gradient(1.6px 1.6px at 18% 26%,rgba(255,255,255,.5) 50%,transparent 51%),
      radial-gradient(1.6px 1.6px at 62% 72%,rgba(255,255,255,.4) 50%,transparent 51%),
      radial-gradient(1.4px 1.4px at 84% 22%,rgba(255,255,255,.38) 50%,transparent 51%),
      radial-gradient(1.4px 1.4px at 36% 84%,rgba(255,255,255,.32) 50%,transparent 51%);
    opacity:.7;pointer-events:none;
  }
  .cta-band h2{position:relative;font-size:clamp(22px,2.4vw,30px);font-weight:700;line-height:1.4;letter-spacing:-.01em;}
  .cta-band p{position:relative;margin-top:10px;font-size:15px;color:rgba(255,255,255,.78);max-width:560px;line-height:1.8;}
  .cta-band .cta-actions{position:relative;display:flex;flex-wrap:wrap;gap:14px;}
  .cta-band .btn-primary{background:#FFFFFF;color:var(--violet);box-shadow:0 12px 26px -14px rgba(0,0,0,.6);}
  .cta-band .btn-primary:hover{background:#FFF6F1;color:#D24F16;}

  /* ============ 页脚 ============ */
  .site-footer{background:var(--space);color:rgba(255,255,255,.72);margin-top:80px;padding:64px 0 28px;}
  .footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.1fr;gap:40px;}
  .footer-brand{display:flex;align-items:center;gap:10px;}
  .footer-brand .brand-mark{width:38px;height:38px;flex:0 0 38px;border-radius:12px;}
  .footer-brand .brand-mark svg{width:19px;height:19px;}
  .footer-brand strong{display:block;color:#FFFFFF;font-size:15.5px;font-weight:700;line-height:1.35;}
  .footer-brand em{display:block;font-style:normal;font-size:12px;color:rgba(255,255,255,.5);letter-spacing:.05em;}
  .footer-about{margin-top:16px;font-size:14px;line-height:1.9;color:rgba(255,255,255,.6);max-width:320px;}
  .footer-title{color:#FFFFFF;font-size:14px;font-weight:700;margin-bottom:14px;letter-spacing:.02em;}
  .footer-links{display:flex;flex-direction:column;gap:2px;}
  .footer-links a,.footer-links span{font-size:14.5px;line-height:2.1;color:rgba(255,255,255,.62);transition:color .22s var(--ease);}
  .footer-links a:hover{color:var(--cyan);}
  .footer-bottom{
    margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.08);
    display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
    font-size:13px;color:rgba(255,255,255,.45);
  }

  /* ============ 响应式 ============ */
  @media (max-width:1279px){
    .container{padding:0 40px;}
  }
  @media (max-width:1023px){
    .side-bar{
      transform:translateX(-100%);transition:transform .3s var(--ease);
      box-shadow:0 24px 60px -20px rgba(18,10,36,.5);width:82%;max-width:330px;
    }
    .side-bar.open{transform:translateX(0);}
    .mobile-top{display:flex;}
    .page{margin-left:0;padding-top:68px;}
    .cat-hero-grid{grid-template-columns:minmax(0,1fr);gap:26px;align-items:start;}
    .hero-badges{flex-direction:row;flex-wrap:wrap;}
    .intro-grid{grid-template-columns:minmax(0,1fr);gap:22px;}
    .rec-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
    .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:34px;}
    .sec{padding:60px 0;}
    .cta-band{padding:38px 34px;}
  }
  @media (max-width:767px){
    .container{padding:0 20px;}
    .cat-hero{padding:34px 0 44px;}
    .cat-hero h1{font-size:clamp(26px,7vw,34px);}
    .cat-hero .lead{font-size:15.5px;}
    .hero-art{aspect-ratio:16/9;border-radius:var(--r-lg);}
    .hero-art-note{left:18px;bottom:14px;font-size:12px;}
    .hero-art-note strong{font-size:14px;}
    .intro-block{padding:24px 22px;}
    .step-item{grid-template-columns:52px minmax(0,1fr);gap:14px;}
    .step-num{width:52px;height:52px;border-radius:16px;font-size:17px;}
    .step-list::before{left:25px;}
    .step-body{padding:20px 20px;border-radius:var(--r-md);}
    .step-body h3{font-size:17px;}
    .check-wrap{padding:26px 22px;border-radius:var(--r-lg);}
    .check-grid{grid-template-columns:minmax(0,1fr);gap:14px;}
    .rec-grid{grid-template-columns:minmax(0,1fr);}
    .faq-q{font-size:15.5px;padding:18px 2px;}
    .faq-a p{padding:0 30px 20px 2px;}
    .cta-band{padding:30px 24px;border-radius:var(--r-lg);}
    .footer-grid{grid-template-columns:minmax(0,1fr);gap:28px;}
    .site-footer{padding:48px 0 24px;margin-top:56px;}
    .sec{padding:48px 0;}
    .badge-data{padding:8px 14px;}
    .badge-data .bd-num{font-size:18px;}
  }
  @media (prefers-reduced-motion:reduce){
    *{transition:none !important;animation:none !important;}
  }

/* roulang page: article */
:root{
  --ink:#120A24;
  --purple:#4A1D8C;
  --purple-lt:#7B3BE0;
  --orange:#FF6B2C;
  --amber:#FFB03A;
  --cyan:#2BD9C0;
  --paper:#F6F3FA;
  --card:#FFFFFF;
  --line:#E7E1F0;
  --text:#1C1430;
  --muted:#6A6280;
  --r-xl:28px;
  --r-lg:24px;
  --r-md:18px;
  --r-sm:14px;
  --shadow-1:0 2px 8px rgba(28,20,48,.06);
  --shadow-2:0 18px 40px -18px rgba(74,29,140,.28);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,figure,ul,ol{margin:0}
a{color:inherit;text-decoration:none;transition:color .24s var(--ease),background .24s var(--ease),border-color .24s var(--ease)}
img{display:block;max-width:100%}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
:focus-visible{outline:2px solid var(--orange);outline-offset:3px;border-radius:8px}
strong{font-weight:700}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ============ 左侧导航 ============ */
.sidebar{
  position:fixed;
  left:0;top:0;bottom:0;
  width:240px;
  z-index:60;
  display:flex;
  flex-direction:column;
  padding:26px 18px 20px;
  background:var(--card);
  border-right:1px solid var(--line);
  overflow-y:auto;
}
.brand{display:flex;gap:11px;align-items:flex-start;padding:0 8px 20px;border-bottom:1px solid var(--line)}
.brand-mark{
  width:38px;height:38px;flex:0 0 auto;
  border-radius:12px;
  background:linear-gradient(120deg,#2A1050,#4A1D8C 45%,#7B3BE0);
  display:grid;place-items:center;
}
.brand-mark svg{width:20px;height:20px;fill:var(--amber)}
.brand strong{display:block;font-size:15px;font-weight:800;line-height:1.35;letter-spacing:-.01em}
.brand em{display:block;font-style:normal;font-size:12px;letter-spacing:.16em;color:var(--muted);margin-top:5px}
.side-label{display:block;font-size:12px;letter-spacing:.18em;color:var(--muted);margin:22px 10px 10px}
.side-nav{display:flex;flex-direction:column;gap:4px}
.side-link{
  position:relative;
  display:flex;align-items:center;
  padding:11px 13px;
  border-radius:12px;
  font-size:15px;
  color:var(--muted);
  transition:color .24s var(--ease),background .24s var(--ease),transform .24s var(--ease);
}
.side-link:hover{color:var(--purple);background:#F0E9FB;transform:translateX(2px)}
.side-link.active{color:var(--purple);background:#F0E9FB;font-weight:600}
.side-link.active::before{
  content:"";
  position:absolute;left:-18px;top:50%;
  transform:translateY(-50%);
  width:3px;height:22px;
  border-radius:0 3px 3px 0;
  background:var(--orange);
}
.side-cta{
  margin-top:auto;
  border-radius:20px;
  padding:18px 16px;
  background:linear-gradient(120deg,#2A1050,#4A1D8C 45%,#7B3BE0);
  color:#fff;
  box-shadow:0 16px 30px -22px rgba(74,29,140,.9);
}
.side-cta p{font-size:13px;line-height:1.7;color:rgba(255,255,255,.78);margin-bottom:12px}
.side-cta .btn-primary{width:100%;justify-content:center;padding:11px 16px;font-size:14px}
.side-note{margin-top:14px;font-size:12px;line-height:1.8;color:var(--muted);padding:0 4px}

/* ============ 按钮 ============ */
.btn-primary{
  display:inline-flex;align-items:center;gap:8px;
  padding:14px 28px;
  border-radius:var(--r-sm);
  font-size:15px;font-weight:600;
  color:#fff;
  background:linear-gradient(90deg,var(--orange),var(--amber));
  transition:filter .24s var(--ease),transform .24s var(--ease),box-shadow .24s var(--ease);
}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 14px 24px -12px rgba(255,107,44,.75)}
.btn-primary:active{transform:translateY(0) scale(.99)}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;
  padding:12px 24px;
  border-radius:var(--r-sm);
  border:1.5px solid var(--purple);
  color:var(--purple);
  font-size:15px;font-weight:600;
  background:transparent;
  transition:background .24s var(--ease),border-color .24s var(--ease),transform .24s var(--ease);
}
.btn-ghost:hover{background:rgba(74,29,140,.07);border-color:#5C28A8;transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0) scale(.99)}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:600;color:var(--purple);
}
.link-arrow svg{width:16px;height:16px;fill:currentColor;transition:transform .24s var(--ease)}
.link-arrow:hover{color:var(--purple-lt)}
.link-arrow:hover svg{transform:translateX(4px)}

/* ============ 顶部移动导航 ============ */
.mobile-bar{
  position:sticky;top:0;z-index:50;
  height:68px;
  display:flex;align-items:center;justify-content:space-between;
  padding:0 20px;
  background:rgba(255,255,255,.93);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.mobile-bar .brand{padding:0;border:0}
.mobile-bar .brand strong{font-size:14px}
.mobile-bar .brand em{font-size:11px;letter-spacing:.12em}
.menu-toggle{
  width:44px;height:44px;
  display:grid;place-items:center;
  border-radius:12px;
  border:1px solid var(--line);
  background:#fff;
  transition:background .24s var(--ease),border-color .24s var(--ease);
}
.menu-toggle:hover{background:#F6F1FD;border-color:rgba(74,29,140,.35)}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--purple);border-radius:2px;position:relative}
.menu-toggle span::before,.menu-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--purple);border-radius:2px}
.menu-toggle span::before{top:-6px}
.menu-toggle span::after{top:6px}

.drawer{
  position:fixed;inset:0;z-index:90;
  display:none;
  flex-direction:column;
  padding:14px 20px 24px;
  background:#fff;
  overflow-y:auto;
}
.drawer.open{display:flex}
.drawer-top{display:flex;align-items:center;justify-content:space-between;height:56px;border-bottom:1px solid var(--line)}
.drawer-close{width:40px;height:40px;display:grid;place-items:center;border-radius:10px;background:#F6F1FD;color:var(--purple);font-size:20px;line-height:1}
.drawer-nav{display:flex;flex-direction:column;margin-top:8px}
.drawer-link{
  display:flex;align-items:center;
  height:56px;
  border-bottom:1px solid var(--line);
  font-size:16px;
  color:var(--muted);
}
.drawer-link:hover{color:var(--purple)}
.drawer-link.active{color:var(--purple);font-weight:600}
.drawer-foot{margin-top:auto;padding-top:24px}
.drawer-foot .btn-primary{width:100%;justify-content:center}
.drawer-foot p{margin-top:12px;font-size:12px;color:var(--muted);text-align:center}

/* ============ 主区域 ============ */
.site-main{padding-bottom:0}
.page{padding:36px 0 0}
.page-inner{max-width:1160px;margin:0 auto;padding:0 24px}

.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:9px;
  font-size:14px;color:var(--muted);
  margin-bottom:24px;
}
.crumb a:hover{color:var(--purple)}
.crumb .dot{width:5px;height:5px;border-radius:50%;background:var(--orange);flex:0 0 auto}
.crumb .current{color:var(--text);max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

.article-head{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-xl);
  padding:38px 40px;
  box-shadow:var(--shadow-1);
}
.tag-purple{
  display:inline-flex;align-items:center;
  padding:5px 14px;
  border-radius:999px;
  background:#F0E9FB;
  color:var(--purple);
  font-size:13px;font-weight:600;
}
.article-head h1{
  margin-top:18px;
  font-size:clamp(28px,3.2vw,42px);
  line-height:1.22;
  font-weight:800;
  letter-spacing:-.02em;
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  margin-top:20px;
  font-size:14px;
  color:var(--muted);
}
.meta-item{display:inline-flex;align-items:center;gap:6px;font-variant-numeric:tabular-nums}
.meta-item svg{width:15px;height:15px;fill:none;stroke:var(--purple);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.meta-sep{width:1px;height:14px;background:var(--line)}

/* ============ 阅读区 ============ */
.reader{
  display:grid;
  grid-template-columns:minmax(0,1fr);
  gap:32px;
  align-items:start;
  margin-top:28px;
}
.toc-mobile{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:0 18px;
  margin-bottom:20px;
}
.toc-mobile summary{
  list-style:none;
  cursor:pointer;
  padding:15px 0;
  font-size:15px;font-weight:600;
  color:var(--purple);
  display:flex;align-items:center;justify-content:space-between;
}
.toc-mobile summary::-webkit-details-marker{display:none}
.toc-mobile summary::after{content:"＋";font-size:16px;color:var(--orange)}
.toc-mobile[open] summary::after{content:"－"}
.toc-mobile nav{display:flex;flex-direction:column;gap:2px;padding-bottom:14px}

.toc-col{display:none}
.toc-inner{
  position:sticky;top:32px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:18px 16px;
  box-shadow:var(--shadow-1);
}
.toc-title{
  font-size:13px;letter-spacing:.12em;color:var(--muted);
  margin-bottom:12px;padding-left:8px;
}
.toc-link{
  display:block;
  font-size:14px;line-height:1.6;
  color:var(--muted);
  padding:8px 10px;
  border-radius:10px;
  border-left:3px solid transparent;
  transition:color .24s var(--ease),background .24s var(--ease),border-color .24s var(--ease);
}
.toc-link:hover{color:var(--purple);background:#F6F1FD}
.toc-link.active{color:var(--purple);background:#F0E9FB;border-left-color:var(--orange);font-weight:600}

.article-body{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-xl);
  padding:44px 44px 48px;
  box-shadow:var(--shadow-1);
  font-size:17px;
  line-height:1.95;
  color:#241A3D;
  word-break:break-word;
}
.article-body p{margin:0 0 1.4em}
.article-body h2{
  position:relative;
  margin:1.9em 0 .8em;
  padding-left:16px;
  font-size:26px;
  line-height:1.4;
  font-weight:700;
  color:var(--text);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.2em;bottom:.2em;
  width:4px;border-radius:3px;background:var(--orange);
}
.article-body h3{
  margin:1.6em 0 .6em;
  font-size:20px;font-weight:600;color:var(--purple);
}
.article-body h4{margin:1.4em 0 .5em;font-size:17px;font-weight:600}
.article-body a{color:var(--purple);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--orange)}
.article-body ul,.article-body ol{padding-left:1.4em;margin:0 0 1.4em}
.article-body li{margin:.4em 0}
.article-body li::marker{color:var(--orange)}
.article-body blockquote{
  margin:1.6em 0;
  padding:18px 22px;
  background:#F6F1FD;
  border-left:4px solid var(--orange);
  border-radius:0 14px 14px 0;
  color:#3A2F56;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:16px;margin:1.6em auto;box-shadow:var(--shadow-1)}
.article-body table{
  width:100%;
  border-collapse:collapse;
  border:1px solid var(--line);
  border-radius:12px;
  overflow:hidden;
  font-size:15px;
  margin:1.6em 0;
  display:block;
  overflow-x:auto;
}
.article-body th,.article-body td{padding:11px 14px;border-bottom:1px solid var(--line);text-align:left}
.article-body th{background:#F6F1FD;color:var(--purple);font-weight:600;white-space:nowrap}
.article-body tr:last-child td{border-bottom:0}
.article-body code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:.88em;
  background:#F1EDF8;
  color:var(--purple);
  padding:2px 7px;
  border-radius:6px;
  font-variant-numeric:tabular-nums;
}
.article-body pre{
  background:#F1EDF8;
  border-radius:12px;
  padding:16px 18px;
  overflow-x:auto;
  margin:1.6em 0;
}
.article-body pre code{background:none;padding:0}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2em 0}

.empty-state{
  background:var(--card);
  border:1px dashed rgba(74,29,140,.35);
  border-radius:var(--r-xl);
  padding:56px 32px;
  text-align:center;
  box-shadow:var(--shadow-1);
}
.empty-icon{
  width:56px;height:56px;margin:0 auto 18px;
  border-radius:16px;
  display:grid;place-items:center;
  background:#F0E9FB;
}
.empty-icon svg{width:26px;height:26px;stroke:var(--purple);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.empty-state h2{font-size:22px;font-weight:700;margin-bottom:10px}
.empty-state p{font-size:15px;color:var(--muted);max-width:420px;margin:0 auto 24px}

.article-foot{
  display:flex;flex-wrap:wrap;align-items:center;gap:18px;
  margin-top:28px;
  padding-top:24px;
  border-top:1px solid var(--line);
}
.text-link{font-size:15px;font-weight:600;color:var(--purple)}
.text-link:hover{color:var(--orange)}

/* ============ 板块通用 ============ */
.section{margin-top:72px}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;flex-wrap:wrap}
.sec-label{
  display:inline-block;
  font-size:12px;font-weight:600;letter-spacing:.16em;
  color:var(--purple);
  margin-bottom:10px;
}
.sec-title{font-size:clamp(24px,2.6vw,32px);line-height:1.3;font-weight:700;letter-spacing:-.01em}
.sec-sub{margin-top:8px;font-size:15px;color:var(--muted);max-width:620px}

/* ============ 资讯卡 ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card-star{
  display:flex;flex-direction:column;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
}
.card-star:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(74,29,140,.3)}
.news-cover{
  display:block;
  aspect-ratio:16/10;
  overflow:hidden;
  background:linear-gradient(120deg,#2A1050,#4A1D8C 45%,#7B3BE0);
}
.news-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.card-star:hover .news-cover img{transform:scale(1.04)}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.tag-cyan{
  display:inline-flex;align-items:center;align-self:flex-start;
  padding:3px 12px;
  border-radius:999px;
  border:1px solid rgba(43,217,192,.55);
  background:rgba(43,217,192,.08);
  color:#0E8B7D;
  font-size:12px;font-weight:600;
}
.news-body h3{
  font-size:18px;line-height:1.5;font-weight:600;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-body h3 a:hover{color:var(--purple)}
.news-body p{
  font-size:14px;line-height:1.75;color:var(--muted);
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  font-size:13px;color:var(--muted);
  font-variant-numeric:tabular-nums;
}
.news-foot .go{color:var(--purple);font-weight:600}
.card-star:hover .news-foot .go{color:var(--orange)}

/* ============ CTA 通栏 ============ */
.cta-band{
  position:relative;
  overflow:hidden;
  margin-top:72px;
  border-radius:var(--r-xl);
  padding:46px 48px;
  background:linear-gradient(120deg,#2A1050,#4A1D8C 45%,#7B3BE0);
  color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  border:1px solid rgba(255,255,255,.08);
}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.12) 1px,transparent 1px);
  background-size:26px 26px;
  opacity:.55;pointer-events:none;
}
.cta-band > *{position:relative;z-index:1}
.cta-band h2{font-size:clamp(22px,2.4vw,30px);font-weight:700;line-height:1.35;letter-spacing:-.01em}
.cta-band p{margin-top:10px;font-size:15px;line-height:1.8;color:rgba(255,255,255,.78);max-width:560px}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:96px;
  padding:64px 0 26px;
  background:var(--ink);
  color:#fff;
}
.site-footer .container{padding:0 24px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
.footer-brand{display:flex;gap:10px;align-items:center;margin-bottom:14px}
.footer-brand .brand-mark{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.1)}
.footer-brand strong{display:block;font-size:15px;font-weight:700}
.footer-brand em{display:block;font-style:normal;font-size:12px;letter-spacing:.14em;color:rgba(255,255,255,.5);margin-top:3px}
.footer-about{font-size:14px;line-height:1.9;color:rgba(255,255,255,.62);max-width:290px}
.footer-title{font-size:13px;letter-spacing:.14em;color:rgba(255,255,255,.45);margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:10px;font-size:15px;color:rgba(255,255,255,.72)}
.footer-links a:hover{color:var(--cyan)}
.footer-bottom{
  margin-top:48px;padding-top:20px;
  border-top:1px solid rgba(255,255,255,.08);
  display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.45);
}

/* ============ 断点 ============ */
@media (min-width:1024px){
  .mobile-bar{display:none}
  .site-main{margin-left:240px}
  .page-inner{padding:0 48px}
}
@media (max-width:1279px){
  .toc-col{display:none}
}
@media (min-width:1280px){
  .reader{grid-template-columns:minmax(0,1fr) 240px}
  .toc-col{display:block}
  .toc-mobile{display:none}
}
@media (max-width:1023px){
  .sidebar{display:none}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .news-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .article-body{padding:32px 26px 36px}
  .article-head{padding:30px 26px}
  .cta-band{padding:36px 28px}
}
@media (max-width:767px){
  .page{padding-top:24px}
  .page-inner{padding:0 20px}
  .article-body{font-size:16px;padding:26px 20px 30px}
  .article-head{padding:26px 20px;border-radius:24px}
  .article-body h2{font-size:22px}
  .article-body h3{font-size:18px}
  .news-grid{grid-template-columns:minmax(0,1fr)}
  .section{margin-top:56px}
  .cta-band{margin-top:56px;padding:30px 22px;border-radius:24px}
  .site-footer{margin-top:64px;padding:48px 0 22px}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:32px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .article-body table{font-size:14px}
  .meta-sep{display:none}
}
@media (max-width:379px){
  .btn-primary,.btn-ghost{padding:12px 20px;font-size:14px}
  .brand strong{font-size:13px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}

/* roulang page: category2 */
:root{
    --ink:#120A24;
    --purple:#4A1D8C;
    --purple-lt:#7B3BE0;
    --orange:#FF6B2C;
    --orange-2:#FFB03A;
    --cyan:#2BD9C0;
    --paper:#F6F3FA;
    --card:#FFFFFF;
    --line:#E7E1F0;
    --text:#1C1430;
    --muted:#6A6280;
    --r-xl:28px;
    --r-lg:24px;
    --r-md:20px;
    --r-sm:14px;
    --shadow-1:0 2px 8px rgba(28,20,48,.06);
    --shadow-2:0 18px 40px -18px rgba(74,29,140,.28);
    --ease:cubic-bezier(.2,.7,.3,1);
    --font:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
    --sidebar-w:240px;
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    font-family:var(--font);
    background:var(--paper);
    color:var(--text);
    font-size:16px;
    line-height:1.85;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;}
  button{font-family:inherit;cursor:pointer;border:0;background:none;}
  h1,h2,h3,h4,p,ul,ol{margin:0;}
  ul,ol{padding:0;list-style:none;}
  :focus-visible{outline:2px solid var(--orange);outline-offset:3px;border-radius:6px;}
  .num{font-variant-numeric:tabular-nums;letter-spacing:.02em;}

  .container{width:100%;max-width:1200px;margin:0 auto;padding:0 48px;}
  .content-wrap{margin-left:var(--sidebar-w);min-height:100vh;display:flex;flex-direction:column;}
  main{flex:1;}

  /* ============ 品牌标 ============ */
  .brand-mark{
    width:38px;height:38px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;
    background:linear-gradient(120deg,#2A1050,#4A1D8C 45%,#7B3BE0);
    flex:none;
  }
  .brand-mark svg{width:20px;height:20px;fill:#FFB03A;}

  /* ============ 桌面侧栏 ============ */
  .sidebar{
    position:fixed;top:0;left:0;width:var(--sidebar-w);height:100vh;
    background:#FFFFFF;border-right:1px solid var(--line);
    display:flex;flex-direction:column;padding:26px 18px 20px;z-index:60;
  }
  .sidebar-brand{display:flex;align-items:center;gap:10px;padding:0 6px 20px;border-bottom:1px solid var(--line);}
  .sidebar-brand strong{display:block;font-size:15px;font-weight:800;letter-spacing:-.01em;line-height:1.3;color:var(--text);}
  .sidebar-brand em{display:block;font-style:normal;font-size:12px;color:var(--muted);letter-spacing:.04em;margin-top:2px;}
  .side-label{display:block;font-size:12px;letter-spacing:.14em;color:var(--muted);padding:20px 10px 8px;}
  .side-nav{display:flex;flex-direction:column;gap:4px;}
  .side-link{
    position:relative;display:block;padding:12px 14px;border-radius:12px;
    font-size:15px;font-weight:500;color:var(--muted);
    transition:color .24s var(--ease),background .24s var(--ease),transform .24s var(--ease);
  }
  .side-link:hover{color:var(--purple);background:#F0E9FB;transform:translateX(2px);}
  .side-link.active{
    color:var(--purple);background:#F0E9FB;font-weight:700;
  }
  .side-link.active::before{
    content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;border-radius:3px;
    background:var(--orange);
  }
  .side-cta{
    margin-top:auto;border-radius:var(--r-lg);padding:18px 16px;
    background:linear-gradient(120deg,#2A1050,#4A1D8C 45%,#7B3BE0);
    color:#fff;border:1px solid rgba(255,255,255,.08);
  }
  .side-cta p{font-size:13px;line-height:1.7;color:rgba(255,255,255,.82);margin-bottom:12px;}
  .side-cta .btn-primary{width:100%;padding:11px 14px;font-size:14px;justify-content:center;}
  .side-contact{margin-top:14px;font-size:12px;color:var(--muted);line-height:1.9;padding:0 4px;}

  /* ============ 移动顶栏与抽屉 ============ */
  .topbar{display:none;}
  .drawer{display:none;}

  /* ============ 按钮 ============ */
  .btn-primary{
    display:inline-flex;align-items:center;gap:8px;
    padding:14px 28px;border-radius:var(--r-sm);
    background:linear-gradient(90deg,#FF6B2C,#FFB03A);
    color:#fff;font-size:15px;font-weight:600;letter-spacing:.01em;
    box-shadow:0 10px 24px -14px rgba(255,107,44,.9);
    transition:transform .24s var(--ease),filter .24s var(--ease),box-shadow .24s var(--ease);
  }
  .btn-primary:hover{filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 16px 28px -14px rgba(255,107,44,.75);}
  .btn-primary:active{transform:translateY(0) scale(.99);}
  .btn-ghost{
    display:inline-flex;align-items:center;gap:8px;
    padding:13px 26px;border-radius:var(--r-sm);
    border:1.5px solid var(--purple);color:var(--purple);
    font-size:15px;font-weight:600;background:transparent;
    transition:background .24s var(--ease),border-color .24s var(--ease),transform .24s var(--ease);
  }
  .btn-ghost:hover{background:rgba(74,29,140,.08);border-color:#38146B;transform:translateY(-2px);}
  .btn-ghost:active{transform:translateY(0);}
  .btn-ghost-light{
    display:inline-flex;align-items:center;gap:8px;
    padding:13px 26px;border-radius:var(--r-sm);
    border:1px solid rgba(255,255,255,.35);color:#fff;font-size:15px;font-weight:600;
    transition:background .24s var(--ease),transform .24s var(--ease);
  }
  .btn-ghost-light:hover{background:rgba(255,255,255,.12);transform:translateY(-2px);}
  .link-arrow{
    display:inline-flex;align-items:center;gap:6px;
    font-size:15px;font-weight:600;color:var(--purple);
    transition:color .24s var(--ease);
  }
  .link-arrow span.arw{transition:transform .24s var(--ease);}
  .link-arrow:hover{color:var(--purple-lt);}
  .link-arrow:hover span.arw{transform:translateX(4px);}

  /* ============ 标签与徽章 ============ */
  .tag{
    display:inline-flex;align-items:center;gap:6px;
    padding:4px 12px;border-radius:999px;
    font-size:12px;font-weight:600;letter-spacing:.02em;
    border:1px solid rgba(43,217,192,.5);color:#0E8C7C;background:rgba(43,217,192,.1);
  }
  .tag-purple{
    display:inline-flex;align-items:center;gap:6px;
    padding:5px 14px;border-radius:999px;
    font-size:13px;font-weight:600;
    background:#F0E9FB;color:var(--purple);
  }
  .badge-data{
    display:inline-flex;flex-direction:column;gap:2px;
    padding:14px 20px;border-radius:18px;
    background:#FFFFFF;border:1px solid var(--line);box-shadow:var(--shadow-1);
    min-width:132px;
  }
  .badge-data b{font-size:26px;font-weight:800;color:var(--purple);line-height:1.2;font-variant-numeric:tabular-nums;letter-spacing:.02em;}
  .badge-data b.cyan{color:#0E8C7C;}
  .badge-data b.orange{color:var(--orange);}
  .badge-data span{font-size:12px;color:var(--muted);letter-spacing:.02em;}

  /* ============ 卡片 ============ */
  .card-star{
    background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
    box-shadow:var(--shadow-1);
    transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
  }
  .card-star:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(74,29,140,.3);}
  .card-star .cover{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-md);}
  .icon-pill{
    width:46px;height:46px;border-radius:14px;display:inline-flex;align-items:center;justify-content:center;
    background:#F0E9FB;color:var(--purple);flex:none;
  }
  .icon-pill svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}

  /* ============ 板块标题 ============ */
  .sec{padding:96px 0;}
  .sec-head{max-width:720px;margin-bottom:44px;}
  .sec-kicker{
    display:inline-flex;align-items:center;gap:8px;
    font-size:12px;font-weight:700;letter-spacing:.16em;color:var(--purple);
    margin-bottom:12px;
  }
  .sec-kicker::before{content:"";width:16px;height:3px;border-radius:3px;background:var(--orange);}
  .sec-title{font-size:34px;font-weight:700;letter-spacing:-.02em;line-height:1.3;color:var(--text);}
  .sec-sub{margin-top:14px;font-size:16px;color:var(--muted);line-height:1.9;}

  /* ============ 面包屑 ============ */
  .crumbs{
    display:flex;flex-wrap:wrap;align-items:center;gap:10px;
    font-size:14px;color:var(--muted);padding:26px 0 0;
  }
  .crumbs a{transition:color .2s var(--ease);}
  .crumbs a:hover{color:var(--purple);}
  .crumbs .dot{width:5px;height:5px;border-radius:50%;background:var(--orange);display:inline-block;}
  .crumbs .cur{color:var(--text);font-weight:600;}

  /* ============ Hero ============ */
  .cat-hero{
    position:relative;overflow:hidden;
    background:
      radial-gradient(900px 420px at 12% -10%,rgba(123,59,224,.20),transparent 62%),
      radial-gradient(700px 380px at 92% 0%,rgba(43,217,192,.16),transparent 60%),
      linear-gradient(160deg,#F0E9FB 0%,#F6F3FA 62%,#F6F3FA 100%);
    border-bottom:1px solid var(--line);
  }
  .cat-hero::after{
    content:"";position:absolute;inset:0;pointer-events:none;
    background-image:radial-gradient(rgba(74,29,140,.16) 1px,transparent 1px);
    background-size:26px 26px;opacity:.35;
    -webkit-mask-image:linear-gradient(180deg,#000 0%,transparent 78%);
    mask-image:linear-gradient(180deg,#000 0%,transparent 78%);
  }
  .hero-grid{
    position:relative;z-index:2;
    display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center;
    padding:44px 0 84px;
  }
  .hero-h1{
    font-size:50px;line-height:1.15;font-weight:800;letter-spacing:-.02em;
    color:var(--text);margin:18px 0 0;
  }
  .hero-h1 em{font-style:normal;color:var(--purple);}
  .hero-lead{margin-top:18px;font-size:17px;color:#4A4363;line-height:1.9;max-width:560px;}
  .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
  .hero-badges{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px;}
  .hero-media{position:relative;}
  .hero-media img{
    width:100%;aspect-ratio:4/3.1;object-fit:cover;border-radius:var(--r-xl);
    border:1px solid rgba(255,255,255,.9);box-shadow:var(--shadow-2);
  }
  .float-card{
    position:absolute;left:-18px;bottom:-24px;
    background:#fff;border:1px solid var(--line);border-radius:18px;
    padding:14px 18px;box-shadow:var(--shadow-2);
    display:flex;align-items:center;gap:14px;
  }
  .float-card .fc-num{font-size:24px;font-weight:800;color:var(--orange);font-variant-numeric:tabular-nums;line-height:1;}
  .float-card .fc-txt{font-size:12px;color:var(--muted);line-height:1.6;}

  /* ============ 导语 ============ */
  .intro-wrap{
    background:#fff;border:1px solid var(--line);border-radius:var(--r-xl);
    padding:40px 44px;box-shadow:var(--shadow-1);
    display:grid;grid-template-columns:1fr 1fr;gap:40px;
  }
  .intro-wrap p{font-size:16.5px;line-height:1.95;color:#3B3352;}
  .intro-wrap p strong{color:var(--purple);font-weight:700;}

  /* ============ 功能矩阵 ============ */
  .matrix{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
  .matrix .card-star{padding:30px 30px 26px;display:flex;flex-direction:column;gap:16px;}
  .matrix h3{font-size:21px;font-weight:700;letter-spacing:-.01em;}
  .matrix p{font-size:15px;color:var(--muted);line-height:1.85;}
  .matrix .tags{display:flex;flex-wrap:wrap;gap:8px;}
  .matrix .foot{margin-top:auto;display:flex;justify-content:flex-end;}

  /* ============ 图示带 ============ */
  .band{
    position:relative;border-radius:var(--r-xl);overflow:hidden;
    border:1px solid rgba(74,29,140,.16);
    background:linear-gradient(120deg,#2A1050,#4A1D8C 45%,#7B3BE0);
  }
  .band img{width:100%;height:100%;object-fit:cover;opacity:.34;}
  .band-inner{
    position:absolute;inset:0;display:flex;flex-direction:column;justify-content:center;
    padding:48px 56px;color:#fff;
  }
  .band-inner h2{font-size:28px;font-weight:700;letter-spacing:-.01em;}
  .band-inner p{margin-top:12px;font-size:15.5px;line-height:1.9;color:rgba(255,255,255,.84);max-width:640px;}
  .band-list{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px;}
  .band-list span{
    display:inline-flex;align-items:center;gap:7px;
    padding:7px 14px;border-radius:999px;font-size:13px;
    background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.22);color:#fff;
  }
  .band-list span i{width:6px;height:6px;border-radius:50%;background:var(--cyan);display:inline-block;}

  /* ============ 场景卡 ============ */
  .scenes{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
  .scene-card{overflow:hidden;display:flex;flex-direction:column;}
  .scene-card .thumb{position:relative;overflow:hidden;border-radius:var(--r-lg) var(--r-lg) 0 0;}
  .scene-card .thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .4s var(--ease);}
  .scene-card:hover .thumb img{transform:scale(1.04);}
  .scene-card .body{padding:24px 26px 28px;display:flex;flex-direction:column;gap:10px;}
  .scene-card h3{font-size:19px;font-weight:700;}
  .scene-card p{font-size:14.5px;color:var(--muted);line-height:1.85;}

  /* ============ 要点清单 ============ */
  .check-card{
    background:#fff;border:1px solid var(--line);border-radius:var(--r-xl);
    padding:40px 44px;box-shadow:var(--shadow-1);
  }
  .check-list{display:grid;grid-template-columns:1fr 1fr;gap:18px 32px;margin-top:26px;}
  .check-list li{display:flex;gap:12px;font-size:15.5px;line-height:1.8;color:#3B3352;}
  .check-list li .tick{
    width:22px;height:22px;border-radius:50%;flex:none;margin-top:4px;
    background:rgba(43,217,192,.14);color:#0E8C7C;
    display:inline-flex;align-items:center;justify-content:center;font-size:12px;font-weight:800;
  }

  /* ============ 站内相关推荐 ============ */
  .rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
  .rel-card{display:flex;flex-direction:column;overflow:hidden;}
  .rel-card .thumb{overflow:hidden;border-radius:var(--r-lg) var(--r-lg) 0 0;}
  .rel-card .thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .4s var(--ease);}
  .rel-card:hover .thumb img{transform:scale(1.04);}
  .rel-card .body{padding:22px 24px 26px;display:flex;flex-direction:column;gap:10px;}
  .rel-card h3{font-size:18px;font-weight:700;line-height:1.5;}
  .rel-card p{font-size:14px;color:var(--muted);line-height:1.8;}

  /* ============ FAQ ============ */
  .faq-list{border-top:1px solid var(--line);}
  .faq-item{border-bottom:1px solid var(--line);}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
    padding:24px 4px;text-align:left;font-size:17px;font-weight:600;color:var(--text);
    transition:color .24s var(--ease);
  }
  .faq-q:hover{color:var(--purple);}
  .faq-ico{
    width:28px;height:28px;border-radius:50%;flex:none;
    background:#F0E9FB;color:var(--purple);
    display:inline-flex;align-items:center;justify-content:center;
    transition:transform .3s var(--ease),background .3s var(--ease),color .3s var(--ease);
  }
  .faq-ico svg{width:14px;height:14px;stroke:currentColor;stroke-width:2.2;fill:none;stroke-linecap:round;}
  .faq-item.open .faq-ico{background:var(--orange);color:#fff;transform:rotate(45deg);}
  .faq-a{
    max-height:0;overflow:hidden;
    transition:max-height .34s var(--ease);
  }
  .faq-a p{padding:0 52px 26px 4px;font-size:15px;line-height:1.85;color:var(--muted);}

  /* ============ CTA 通栏 ============ */
  .cta-band{
    position:relative;overflow:hidden;border-radius:var(--r-xl);
    background:linear-gradient(120deg,#2A1050,#4A1D8C 45%,#7B3BE0);
    border:1px solid rgba(255,255,255,.1);
    padding:52px 56px;
    display:flex;align-items:center;justify-content:space-between;gap:36px;
  }
  .cta-band::before{
    content:"";position:absolute;inset:0;pointer-events:none;
    background-image:radial-gradient(rgba(255,255,255,.5) 1px,transparent 1px);
    background-size:34px 34px;opacity:.1;
  }
  .cta-band > *{position:relative;z-index:2;}
  .cta-band h2{font-size:30px;font-weight:700;color:#fff;letter-spacing:-.01em;line-height:1.35;}
  .cta-band p{margin-top:12px;font-size:15.5px;color:rgba(255,255,255,.82);line-height:1.85;max-width:560px;}
  .cta-actions{display:flex;flex-wrap:wrap;gap:14px;flex:none;}

  /* ============ 页脚 ============ */
  .site-footer{background:var(--ink);color:#fff;margin-top:0;padding:72px 0 0;}
  .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px;}
  .footer-brand{display:flex;align-items:center;gap:12px;}
  .footer-brand strong{display:block;font-size:15.5px;font-weight:800;letter-spacing:-.01em;}
  .footer-brand em{display:block;font-style:normal;font-size:12px;color:rgba(255,255,255,.55);letter-spacing:.06em;margin-top:3px;}
  .footer-about{margin-top:18px;font-size:14px;line-height:1.9;color:rgba(255,255,255,.62);max-width:320px;}
  .footer-title{font-size:13px;font-weight:700;letter-spacing:.14em;color:rgba(255,255,255,.5);margin-bottom:16px;}
  .footer-links{display:flex;flex-direction:column;gap:2px;}
  .footer-links a,.footer-links span{
    font-size:15px;line-height:2.2;color:rgba(255,255,255,.78);
    transition:color .24s var(--ease);
  }
  .footer-links a:hover{color:var(--cyan);}
  .footer-bottom{
    border-top:1px solid rgba(255,255,255,.08);
    padding:22px 0 28px;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
    font-size:13px;color:rgba(255,255,255,.5);
  }

  /* ============ 响应式 ============ */
  @media (max-width:1279px){
    .container{padding:0 40px;}
    .hero-h1{font-size:44px;}
    .hero-grid{gap:40px;}
  }
  @media (max-width:1023px){
    .sidebar{display:none;}
    .content-wrap{margin-left:0;}
    .topbar{
      display:flex;align-items:center;justify-content:space-between;
      position:sticky;top:0;z-index:80;height:68px;padding:0 20px;
      background:rgba(255,255,255,.92);backdrop-filter:blur(10px);
      border-bottom:1px solid var(--line);
    }
    .topbar .brand{display:flex;align-items:center;gap:10px;}
    .topbar .brand strong{font-size:14.5px;font-weight:800;letter-spacing:-.01em;}
    .topbar .brand em{display:block;font-style:normal;font-size:11px;color:var(--muted);letter-spacing:.05em;}
    .nav-toggle{
      width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
      display:inline-flex;align-items:center;justify-content:center;background:#fff;
      transition:background .24s var(--ease),border-color .24s var(--ease);
    }
    .nav-toggle:hover{background:#F0E9FB;border-color:rgba(74,29,140,.3);}
    .nav-toggle svg{width:20px;height:20px;stroke:var(--purple);stroke-width:2;fill:none;stroke-linecap:round;}
    .drawer{
      display:block;position:fixed;inset:68px 0 0 0;z-index:70;
      background:#fff;border-top:1px solid var(--line);
      transform:translateY(-12px);opacity:0;visibility:hidden;
      transition:opacity .26s var(--ease),transform .26s var(--ease),visibility .26s;
      overflow-y:auto;padding:10px 20px 32px;
    }
    .drawer.open{opacity:1;visibility:visible;transform:translateY(0);}
    .drawer-close{
      margin:14px 0 6px;width:100%;display:flex;align-items:center;justify-content:space-between;
      padding:12px 4px;font-size:13px;letter-spacing:.12em;color:var(--muted);border-bottom:1px solid var(--line);
    }
    .drawer-close svg{width:18px;height:18px;stroke:var(--muted);stroke-width:2;fill:none;stroke-linecap:round;}
    .drawer .side-link{height:56px;display:flex;align-items:center;border-bottom:1px solid var(--line);border-radius:0;padding:0 4px;font-size:16px;}
    .drawer .side-link.active{background:transparent;color:var(--purple);transform:none;}
    .drawer .side-link.active::before{top:14px;bottom:14px;}
    .drawer .side-link:hover{background:transparent;transform:none;color:var(--purple);}
    .drawer-cta{
      margin-top:26px;border-radius:var(--r-lg);padding:20px;
      background:linear-gradient(120deg,#2A1050,#4A1D8C 45%,#7B3BE0);color:#fff;
    }
    .drawer-cta p{font-size:13px;color:rgba(255,255,255,.82);line-height:1.7;margin-bottom:14px;}
    .drawer-cta .btn-primary{width:100%;justify-content:center;}
    body.nav-open{overflow:hidden;}

    .hero-grid{grid-template-columns:1fr;gap:36px;padding:34px 0 64px;}
    .hero-h1{font-size:38px;}
    .hero-media{order:2;}
    .float-card{left:auto;right:14px;bottom:-18px;}
    .intro-wrap{grid-template-columns:1fr;gap:24px;padding:32px 30px;}
    .matrix{grid-template-columns:1fr;}
    .scenes{grid-template-columns:1fr 1fr;}
    .rel-grid{grid-template-columns:1fr 1fr;}
    .check-list{grid-template-columns:1fr;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
    .cta-band{flex-direction:column;align-items:flex-start;padding:40px 32px;}
    .sec{padding:64px 0;}
  }
  @media (max-width:767px){
    .container{padding:0 20px;}
    .sec{padding:56px 0;}
    .sec-title{font-size:25px;}
    .hero-h1{font-size:31px;}
    .hero-lead{font-size:15.5px;}
    .hero-badges{gap:10px;}
    .badge-data{flex:1;min-width:0;padding:12px 14px;}
    .badge-data b{font-size:21px;}
    .scenes{grid-template-columns:1fr;}
    .rel-grid{grid-template-columns:1fr;}
    .footer-grid{grid-template-columns:1fr;}
    .band-inner{padding:32px 24px;position:relative;}
    .band img{position:absolute;inset:0;width:100%;height:100%;}
    .band{min-height:300px;}
    .band-inner h2{font-size:22px;}
    .cta-band{padding:32px 24px;}
    .cta-band h2{font-size:23px;}
    .faq-q{font-size:15.5px;padding:20px 2px;gap:14px;}
    .faq-a p{padding:0 8px 22px 2px;font-size:14.5px;}
    .intro-wrap{padding:26px 22px;}
    .matrix .card-star{padding:24px 22px;}
    .check-card{padding:28px 22px;}
    .hero-actions .btn-primary,.hero-actions .btn-ghost{width:100%;justify-content:center;}
    .cta-actions{width:100%;}
    .cta-actions .btn-primary,.cta-actions .btn-ghost-light{width:100%;justify-content:center;}
  }
  @media (prefers-reduced-motion:reduce){
    *{animation-duration:.001ms !important;transition-duration:.001ms !important;}
    html{scroll-behavior:auto;}
  }

/* roulang page: category3 */
:root{
    --deep:#120A24;
    --purple:#4A1D8C;
    --purple-l:#7B3BE0;
    --orange:#FF6B2C;
    --orange-l:#FFB03A;
    --cyan:#2BD9C0;
    --paper:#F6F3FA;
    --card:#FFFFFF;
    --line:#E7E1F0;
    --ink:#1C1430;
    --muted:#6A6280;
    --tint:#F0E9FB;
    --r-xl:28px;
    --r-lg:24px;
    --r-md:20px;
    --r-sm:14px;
    --shadow-1:0 2px 8px rgba(28,20,48,.06);
    --shadow-2:0 18px 40px -18px rgba(74,29,140,.28);
    --ease:cubic-bezier(.2,.7,.3,1);
    --grad-brand:linear-gradient(120deg,#2A1050 0%,#4A1D8C 45%,#7B3BE0 100%);
    --grad-star:linear-gradient(90deg,#FF6B2C 0%,#FFB03A 100%);
    --nav-w:240px;
    --bar-h:68px;
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    background:var(--paper);
    color:var(--ink);
    font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
    font-size:16px;
    line-height:1.85;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;}
  button{font-family:inherit;}
  h1,h2,h3,h4,p,ul,ol,dl,figure{margin:0;}
  ul,ol{padding:0;list-style:none;}
  input,select,textarea{font-family:inherit;font-size:15px;color:var(--ink);}
  :focus-visible{outline:2px solid var(--orange);outline-offset:3px;border-radius:6px;}
  .num{font-variant-numeric:tabular-nums;letter-spacing:.02em;}

  .container{width:100%;max-width:1200px;margin:0 auto;padding:0 48px;}
  @media (max-width:767px){.container{padding:0 20px;}}

  /* ============ 侧栏导航 ============ */
  .sidebar{
    position:fixed;
    top:0;left:0;
    width:var(--nav-w);
    height:100vh;
    background:var(--deep);
    border-right:1px solid rgba(255,255,255,.08);
    padding:28px 18px 22px;
    display:flex;
    flex-direction:column;
    gap:26px;
    overflow-y:auto;
    z-index:60;
  }
  .brand{display:flex;align-items:center;gap:12px;padding:0 6px;}
  .brand-mark{
    width:42px;height:42px;flex:none;border-radius:14px;
    background:var(--grad-brand);
    border:1px solid rgba(255,255,255,.14);
    display:grid;place-items:center;
  }
  .brand-mark svg{width:22px;height:22px;fill:var(--orange-l);}
  .brand-text{display:flex;flex-direction:column;line-height:1.35;}
  .brand-text strong{color:#fff;font-size:16px;font-weight:700;letter-spacing:.01em;}
  .brand-text em{color:rgba(255,255,255,.56);font-size:12px;font-style:normal;letter-spacing:.06em;}
  .side-label{
    display:block;padding:0 12px 10px;
    font-size:12px;letter-spacing:.16em;color:rgba(255,255,255,.36);
  }
  .side-nav{display:flex;flex-direction:column;gap:4px;}
  .side-link{
    position:relative;
    display:block;
    padding:12px 14px;
    border-radius:var(--r-sm);
    color:rgba(255,255,255,.66);
    font-size:15px;
    transition:color .24s var(--ease),background .24s var(--ease),transform .24s var(--ease);
  }
  .side-link:hover{color:#fff;background:rgba(255,255,255,.07);transform:translateX(2px);}
  .side-link.active{
    background:var(--tint);
    color:var(--purple);
    font-weight:600;
  }
  .side-link.active::before{
    content:"";
    position:absolute;left:0;top:12px;bottom:12px;width:3px;border-radius:0 3px 3px 0;
    background:var(--orange);
  }
  .side-cta{
    margin-top:auto;
    padding:18px 16px;
    border-radius:var(--r-lg);
    background:linear-gradient(150deg,rgba(123,59,224,.28),rgba(255,107,44,.12));
    border:1px solid rgba(255,255,255,.12);
  }
  .side-cta p{color:rgba(255,255,255,.78);font-size:13px;line-height:1.7;margin-bottom:12px;}
  .side-contact{display:block;margin-top:12px;color:rgba(255,255,255,.42);font-size:12px;line-height:1.7;}

  /* ============ 移动端顶栏与抽屉 ============ */
  .mobile-bar{
    display:none;
    position:fixed;top:0;left:0;right:0;height:var(--bar-h);
    background:rgba(255,255,255,.94);
    border-bottom:1px solid var(--line);
    backdrop-filter:blur(10px);
    align-items:center;justify-content:space-between;
    padding:0 18px;z-index:80;
  }
  .mobile-brand{display:flex;align-items:center;gap:10px;}
  .mobile-brand .brand-mark{width:36px;height:36px;border-radius:12px;background:var(--grad-brand);}
  .mobile-brand .brand-mark svg{width:18px;height:18px;fill:var(--orange-l);}
  .mobile-brand-text{font-size:15px;font-weight:700;color:var(--ink);letter-spacing:.01em;}
  .hamburger{
    width:42px;height:42px;border:1px solid var(--line);border-radius:12px;
    background:#fff;display:grid;place-content:center;gap:5px;cursor:pointer;
    transition:border-color .24s var(--ease),box-shadow .24s var(--ease);
  }
  .hamburger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--purple);transition:transform .26s var(--ease),opacity .2s var(--ease);}
  .hamburger:hover{border-color:rgba(74,29,140,.4);box-shadow:var(--shadow-1);}
  .hamburger.open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
  .hamburger.open span:nth-child(2){opacity:0;}
  .hamburger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
  .drawer{
    display:none;
    position:fixed;top:var(--bar-h);left:0;right:0;bottom:0;
    background:#fff;z-index:75;
    padding:14px 20px 32px;
    overflow-y:auto;
  }
  .drawer.open{display:block;}
  .drawer-nav{display:flex;flex-direction:column;}
  .drawer-nav a{
    display:flex;align-items:center;
    min-height:56px;padding:0 6px;
    border-bottom:1px solid var(--line);
    font-size:16px;color:var(--muted);
    transition:color .2s var(--ease),padding-left .2s var(--ease);
  }
  .drawer-nav a:hover{color:var(--purple);}
  .drawer-nav a.active{color:var(--purple);font-weight:600;padding-left:12px;box-shadow:inset 3px 0 0 var(--orange);}
  .drawer-cta{margin-top:24px;display:block;text-align:center;}

  /* ============ 主体框架 ============ */
  .page{margin-left:var(--nav-w);min-height:100vh;display:flex;flex-direction:column;}
  .page-main{flex:1;}

  /* ============ 按钮 ============ */
  .btn-primary,.btn-line,.btn-ghost{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    font-size:15px;font-weight:600;line-height:1;
    padding:14px 28px;border-radius:var(--r-sm);
    border:1.5px solid transparent;cursor:pointer;
    transition:transform .22s var(--ease),box-shadow .24s var(--ease),background .24s var(--ease),border-color .24s var(--ease),color .24s var(--ease),filter .24s var(--ease);
  }
  .btn-primary{background:var(--grad-star);color:#fff;box-shadow:0 10px 24px -14px rgba(255,107,44,.9);}
  .btn-primary:hover{filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 14px 26px -12px rgba(255,107,44,.55);}
  .btn-primary:active{transform:translateY(0) scale(.99);}
  .btn-line{border-color:rgba(74,29,140,.45);color:var(--purple);background:transparent;}
  .btn-line:hover{background:rgba(74,29,140,.08);border-color:var(--purple);}
  .btn-line:active{transform:scale(.99);}
  .btn-ghost{border-color:rgba(255,255,255,.35);color:#fff;background:transparent;}
  .btn-ghost:hover{background:rgba(255,255,255,.12);}
  .btn-sm{padding:11px 18px;font-size:14px;border-radius:12px;width:100%;}

  /* ============ 标签 / 徽章 ============ */
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    padding:6px 14px;border-radius:999px;
    background:rgba(74,29,140,.08);
    color:var(--purple);font-size:12px;font-weight:600;letter-spacing:.1em;
  }
  .eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--orange);}
  .tag{
    display:inline-flex;align-items:center;
    padding:4px 12px;border-radius:999px;
    border:1px solid rgba(43,217,192,.55);
    color:#0E7C6C;font-size:12px;line-height:1.7;
  }
  .badge-data{
    display:flex;flex-direction:column;gap:2px;
    padding:16px 20px;border-radius:var(--r-md);
    background:#fff;border:1px solid var(--line);
    box-shadow:var(--shadow-1);
  }
  .badge-data strong{
    font-size:24px;font-weight:800;color:var(--purple);
    font-variant-numeric:tabular-nums;letter-spacing:.02em;line-height:1.25;
  }
  .badge-data span{font-size:12px;color:var(--muted);line-height:1.6;}

  /* ============ 分类 Hero ============ */
  .page-hero{
    position:relative;
    padding:56px 0 72px;
    background:linear-gradient(140deg,#EFE6FB 0%,#F6F3FA 58%,#FBF7F2 100%);
    border-bottom-left-radius:48px;
    border-bottom-right-radius:48px;
    overflow:hidden;
  }
  .page-hero::after{
    content:"";
    position:absolute;right:-60px;top:-60px;width:320px;height:320px;border-radius:50%;
    background:radial-gradient(circle at 40% 40%,rgba(123,59,224,.16),transparent 68%);
    pointer-events:none;
  }
  .breadcrumb{
    display:flex;align-items:center;gap:10px;flex-wrap:wrap;
    font-size:14px;color:var(--muted);margin-bottom:30px;
  }
  .breadcrumb a{transition:color .2s var(--ease);}
  .breadcrumb a:hover{color:var(--purple);}
  .breadcrumb .dot{width:4px;height:4px;border-radius:50%;background:var(--orange);}
  .breadcrumb .current{color:var(--ink);font-weight:600;}
  .hero-flex{
    display:grid;grid-template-columns:minmax(0,1fr) 300px;
    gap:48px;align-items:end;position:relative;z-index:1;
  }
  .page-hero h1{
    margin:18px 0 18px;
    font-size:52px;line-height:1.15;font-weight:800;letter-spacing:-.02em;
    color:var(--ink);
  }
  .hero-sub{font-size:17px;line-height:1.85;color:var(--muted);max-width:640px;}
  .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
  .hero-stats{display:flex;flex-direction:column;gap:16px;}
  .hero-stats .badge-data strong{font-size:26px;}

  /* ============ 通用板块 ============ */
  .section{padding:96px 0;}
  .section-tight{padding:72px 0;}
  .sec-head{max-width:720px;margin-bottom:44px;}
  .sec-label{
    display:inline-block;font-size:12px;font-weight:700;letter-spacing:.16em;
    color:var(--purple);margin-bottom:14px;
  }
  .sec-title{
    font-size:34px;line-height:1.3;font-weight:700;letter-spacing:-.01em;color:var(--ink);
  }
  .sec-desc{margin-top:14px;color:var(--muted);font-size:16px;line-height:1.85;}

  /* 导语 */
  .intro-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:40px;}
  .intro-grid p{font-size:16.5px;line-height:1.9;color:#2A2140;}
  .intro-grid p strong{color:var(--purple);font-weight:700;}

  .wide-figure{
    margin-top:52px;border-radius:var(--r-xl);overflow:hidden;
    background:var(--grad-brand);
    box-shadow:var(--shadow-2);position:relative;
  }
  .wide-figure img{width:100%;height:340px;object-fit:cover;opacity:.92;}
  .figure-cap{
    position:absolute;left:28px;bottom:24px;right:28px;
    color:#fff;font-size:15px;line-height:1.7;
    text-shadow:0 2px 10px rgba(18,10,36,.6);
  }

  /* 支持范围列表 */
  .range-list{border-top:1px solid var(--line);}
  .range-item{
    display:grid;grid-template-columns:56px minmax(0,1fr) 200px;
    gap:24px;align-items:center;
    padding:26px 0;border-bottom:1px solid var(--line);
    transition:background .24s var(--ease);
  }
  .range-item:hover{background:rgba(255,255,255,.7);}
  .range-icon{
    width:56px;height:56px;border-radius:18px;
    background:var(--tint);color:var(--purple);
    display:grid;place-items:center;
  }
  .range-icon svg{width:24px;height:24px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}
  .range-item h3{font-size:19px;font-weight:600;margin-bottom:6px;}
  .range-item p{font-size:15px;color:var(--muted);line-height:1.8;}
  .range-note{
    font-size:13px;color:var(--purple);text-align:right;line-height:1.7;
    background:rgba(74,29,140,.06);border-radius:999px;padding:8px 16px;
  }

  /* 主区：FAQ + 表单 */
  .support-grid{
    display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,.85fr);
    gap:40px;align-items:start;
  }
  .faq-list{border-top:1px solid var(--line);}
  .faq-item{border-bottom:1px solid var(--line);}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
    padding:22px 2px;background:none;border:0;cursor:pointer;text-align:left;
    font-size:17px;font-weight:600;line-height:1.6;color:var(--ink);
    transition:color .22s var(--ease);
  }
  .faq-q:hover{color:var(--purple);}
  .faq-icon{
    flex:none;width:28px;height:28px;border-radius:50%;
    background:var(--tint);color:var(--purple);
    display:grid;place-items:center;
    transition:background .26s var(--ease),color .26s var(--ease),transform .3s var(--ease);
  }
  .faq-icon svg{width:14px;height:14px;stroke:currentColor;stroke-width:2;fill:none;stroke-linecap:round;}
  .faq-item.open .faq-icon{background:var(--orange);color:#fff;transform:rotate(45deg);}
  .faq-a{
    max-height:0;overflow:hidden;
    transition:max-height .34s var(--ease);
  }
  .faq-a p{
    padding:0 44px 22px 2px;
    font-size:15px;line-height:1.85;color:var(--muted);
  }

  .form-card{
    position:sticky;top:24px;
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--r-xl);
    padding:30px 28px;
    box-shadow:var(--shadow-2);
  }
  .form-card h3{font-size:21px;font-weight:700;margin-bottom:8px;}
  .form-card .form-lead{font-size:14px;color:var(--muted);line-height:1.75;margin-bottom:22px;}
  .field{margin-bottom:16px;}
  .field label{display:block;font-size:13px;font-weight:500;color:var(--ink);margin-bottom:7px;}
  .field input,.field select,.field textarea{
    width:100%;border:1px solid var(--line);border-radius:12px;
    background:#FCFBFE;padding:12px 14px;line-height:1.6;
    transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
  }
  .field input,.field select{height:48px;padding:0 14px;}
  .field textarea{min-height:112px;resize:vertical;}
  .field input:focus,.field select:focus,.field textarea:focus{
    outline:none;border-color:var(--purple-l);background:#fff;
    box-shadow:0 0 0 3px rgba(123,59,224,.18);
  }
  .form-hint{font-size:12.5px;color:var(--muted);line-height:1.7;margin-top:12px;}
  .form-status{
    display:none;margin-top:14px;padding:12px 14px;border-radius:12px;
    background:rgba(43,217,192,.12);border:1px solid rgba(43,217,192,.45);
    color:#0E7C6C;font-size:13.5px;line-height:1.7;
  }
  .form-status.show{display:block;}

  /* 要点清单卡 */
  .check-card{
    background:var(--card);border:1px solid var(--line);
    border-radius:var(--r-xl);padding:40px;box-shadow:var(--shadow-1);
  }
  .check-grid{
    display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
    gap:18px 34px;margin-top:28px;
  }
  .check-item{display:flex;gap:12px;align-items:flex-start;}
  .check-item .tick{
    flex:none;width:22px;height:22px;border-radius:50%;margin-top:5px;
    background:rgba(43,217,192,.16);color:#0E7C6C;display:grid;place-items:center;
  }
  .check-item .tick svg{width:12px;height:12px;stroke:currentColor;stroke-width:2.6;fill:none;stroke-linecap:round;stroke-linejoin:round;}
  .check-item p{font-size:15px;line-height:1.8;color:#2A2140;}
  .check-item p strong{font-weight:600;color:var(--ink);}

  /* 资讯卡 */
  .news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
  .list-news{display:block;}
  .news-card{
    background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
    overflow:hidden;box-shadow:var(--shadow-1);height:100%;
    display:flex;flex-direction:column;
    transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
  }
  .news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(74,29,140,.3);}
  .news-thumb{aspect-ratio:16/10;overflow:hidden;background:var(--grad-brand);}
  .news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
  .news-card:hover .news-thumb img{transform:scale(1.04);}
  .news-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:10px;flex:1;}
  .news-body h3{font-size:18px;font-weight:600;line-height:1.55;}
  .news-body p{font-size:14px;color:var(--muted);line-height:1.8;}
  .news-foot{
    margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
    display:flex;align-items:center;justify-content:space-between;
    font-size:13px;color:var(--muted);
  }
  .news-foot .arrow{color:var(--purple);font-weight:600;transition:transform .24s var(--ease);}
  .news-card:hover .news-foot .arrow{transform:translateX(4px);}

  /* CTA */
  .cta-band{
    position:relative;overflow:hidden;
    margin:0 auto;
    max-width:1104px;
    border-radius:var(--r-xl);
    background:var(--grad-brand);
    padding:56px 56px;
    display:flex;align-items:center;justify-content:space-between;gap:36px;
    box-shadow:0 30px 60px -34px rgba(74,29,140,.7);
  }
  .cta-band::before{
    content:"";position:absolute;inset:0;
    background-image:radial-gradient(rgba(255,255,255,.16) 1px,transparent 1px);
    background-size:26px 26px;opacity:.5;pointer-events:none;
  }
  .cta-band h2{
    position:relative;color:#fff;font-size:30px;line-height:1.35;font-weight:700;
    letter-spacing:-.01em;max-width:620px;
  }
  .cta-band p{position:relative;color:rgba(255,255,255,.72);font-size:15px;line-height:1.8;margin-top:12px;max-width:600px;}
  .cta-band .cta-actions{position:relative;display:flex;flex-direction:column;gap:12px;flex:none;}

  /* 页脚 */
  .site-footer{
    margin-top:96px;
    background:var(--deep);
    color:rgba(255,255,255,.7);
    padding:64px 0 28px;
  }
  .footer-grid{
    display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px;
    padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.08);
  }
  .footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
  .footer-brand strong{display:block;color:#fff;font-size:16px;line-height:1.4;}
  .footer-brand em{display:block;color:rgba(255,255,255,.45);font-size:12px;font-style:normal;letter-spacing:.08em;}
  .footer-about{font-size:14px;line-height:1.85;color:rgba(255,255,255,.5);max-width:320px;}
  .footer-title{color:#fff;font-size:14px;font-weight:600;letter-spacing:.06em;margin-bottom:16px;}
  .footer-links{display:flex;flex-direction:column;gap:8px;font-size:15px;line-height:1.7;}
  .footer-links a,.footer-links span{color:rgba(255,255,255,.6);font-size:14px;transition:color .22s var(--ease);}
  .footer-links a:hover{color:var(--cyan);}
  .footer-bottom{
    padding-top:22px;display:flex;flex-wrap:wrap;gap:12px;
    justify-content:space-between;font-size:13px;color:rgba(255,255,255,.4);
  }

  /* ============ 响应式 ============ */
  @media (max-width:1279px){
    .hero-flex{grid-template-columns:minmax(0,1fr) 260px;gap:32px;}
    .page-hero h1{font-size:44px;}
  }
  @media (max-width:1023px){
    .sidebar{display:none;}
    .mobile-bar{display:flex;}
    .page{margin-left:0;padding-top:var(--bar-h);}
    .hero-flex{grid-template-columns:minmax(0,1fr);gap:32px;}
    .hero-stats{flex-direction:row;flex-wrap:wrap;}
    .hero-stats .badge-data{flex:1 1 160px;}
    .support-grid{grid-template-columns:minmax(0,1fr);gap:32px;}
    .form-card{position:static;}
    .news-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
    .range-item{grid-template-columns:48px minmax(0,1fr);}
    .range-icon{width:48px;height:48px;border-radius:16px;}
    .range-note{grid-column:2;text-align:left;justify-self:start;}
    .cta-band{flex-direction:column;align-items:flex-start;padding:44px 36px;}
    .cta-band .cta-actions{width:100%;}
    .footer-grid{grid-template-columns:1fr 1fr;}
  }
  @media (max-width:767px){
    .page-hero{padding:36px 0 52px;border-bottom-left-radius:32px;border-bottom-right-radius:32px;}
    .page-hero h1{font-size:34px;}
    .hero-sub{font-size:15.5px;}
    .section{padding:56px 0;}
    .section-tight{padding:48px 0;}
    .sec-title{font-size:24px;}
    .intro-grid{grid-template-columns:minmax(0,1fr);gap:20px;}
    .wide-figure img{height:200px;}
    .figure-cap{left:18px;right:18px;bottom:16px;font-size:13px;}
    .range-item{gap:16px;padding:20px 0;}
    .range-item h3{font-size:17px;}
    .check-card{padding:26px 22px;}
    .check-grid{grid-template-columns:minmax(0,1fr);gap:14px;}
    .news-grid{grid-template-columns:minmax(0,1fr);}
    .cta-band{padding:34px 24px;border-radius:var(--r-lg);}
    .cta-band h2{font-size:23px;}
    .site-footer{margin-top:56px;padding:48px 0 24px;}
    .footer-grid{grid-template-columns:minmax(0,1fr);gap:30px;}
    .footer-bottom{flex-direction:column;gap:6px;}
    .btn-primary,.btn-line{padding:13px 22px;font-size:14.5px;}
  }
  @media (max-width:520px){
    .hero-stats{flex-direction:column;}
    .hero-actions{flex-direction:column;align-items:stretch;}
    .hero-actions .btn-primary,.hero-actions .btn-line{width:100%;}
    .form-card{padding:24px 20px;}
    .faq-q{font-size:16px;}
  }
  @media (prefers-reduced-motion:reduce){
    *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
  }