/* roulang page: index */
/* ========== 设计变量 ========== */
:root{
  --brand-1:#6C4BFF;
  --brand-2:#A24BFF;
  --accent-1:#22E3C0;
  --accent-2:#FF7A3D;
  --grad-brand:linear-gradient(120deg,#6C4BFF 0%,#A24BFF 52%,#FF7A3D 100%);
  --ink-900:#120E1F;
  --ink-800:#1A1430;
  --ink-700:#241C3D;
  --paper-0:#FFFFFF;
  --paper-1:#F7F5FF;
  --line-light:#E8E4F5;
  --line-dark:rgba(255,255,255,.10);
  --text-on-dark:rgba(255,255,255,.94);
  --text-on-dark-2:rgba(255,255,255,.66);
  --text-900:#1A1430;
  --text-700:#4A4360;
  --text-500:#8A83A0;
  --r-xs:10px;
  --r-sm:14px;
  --r-md:18px;
  --r-lg:24px;
  --r-xl:32px;
  --r-pill:999px;
  --sh-1:0 12px -8px rgba(18,14,31,.45);
  --sh-2:0 22px -18px rgba(18,14,31,.60);
  --sh-3:0 34px -22px rgba(108,75,255,.45);
  --ease:cubic-bezier(.2,.7,.3,1);
  --t-fast:180ms;
  --t-base:240ms;
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-num:ui-monospace,"SF Mono","Roboto Mono",Menlo,Consolas,monospace;
}
/* ========== 基础重置 ========== */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  color:var(--text-900);
  background:var(--paper-1);
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
body.no-scroll{overflow:hidden;}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand-1);text-decoration:none;transition:color var(--t-fast) var(--ease);}
a:hover{color:var(--brand-2);}
p{margin:0 0 1em;}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--text-900);letter-spacing:-.01em;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input,textarea,select{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--accent-1);outline-offset:2px;border-radius:4px;}
::selection{background:rgba(108,75,255,.22);}
/* ========== 布局容器 ========== */
.page-wrap{margin-left:260px;min-height:100vh;background:var(--paper-1);}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 40px;}
.narrow{max-width:860px;}
.grid-x{display:flex;flex-wrap:wrap;}
/* ========== 左侧竖向导航 ========== */
.side-nav{
  position:fixed;top:0;left:0;bottom:0;width:260px;z-index:60;
  display:flex;flex-direction:column;
  background:var(--ink-900);
  border-right:1px solid var(--line-dark);
}
.side-brand{
  height:84px;flex:0 0 84px;display:flex;align-items:center;gap:12px;
  padding:0 22px;border-bottom:1px solid var(--line-dark);
}
.brand-mark{
  width:36px;height:36px;border-radius:11px;flex:0 0 36px;
  background:var(--grad-brand);
  box-shadow:var(--sh-3);
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:15px;font-weight:800;
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-text b{color:var(--text-on-dark);font-size:15px;font-weight:700;letter-spacing:.01em;}
.brand-text span{color:var(--text-on-dark-2);font-size:11px;letter-spacing:.14em;}
.side-menu{flex:1 1 auto;overflow-y:auto;padding:18px 0;}
.side-menu::-webkit-scrollbar{width:4px;}
.side-menu::-webkit-scrollbar-thumb{background:rgba(255,255,255,.14);border-radius:4px;}
.side-menu li{margin:0;}
.side-link{
  position:relative;display:flex;align-items:center;gap:12px;
  height:46px;padding:0 22px;
  color:var(--text-on-dark-2);font-size:15px;
  transition:background var(--t-fast) var(--ease),color var(--t-fast) var(--ease);
}
.side-link i{width:18px;text-align:center;font-size:15px;}
.side-link:hover{color:var(--text-on-dark);background:rgba(108,75,255,.10);}
.side-link.is-active{color:#fff;background:rgba(108,75,255,.16);}
.side-link.is-active::before{
  content:"";position:absolute;left:0;top:9px;bottom:9px;width:3px;border-radius:0 3px 3px 0;
  background:var(--grad-brand);
}
.side-foot{padding:18px 22px 22px;border-top:1px solid var(--line-dark);}
.side-foot .btn-main{width:100%;height:44px;padding:0;font-size:14px;}
.side-note{margin:12px 0 0;font-size:12px;line-height:1.6;color:var(--text-on-dark-2);}
/* ========== 移动端顶部条与抽屉 ========== */
.mobile-bar{
  display:none;position:fixed;top:0;left:0;right:0;height:60px;z-index:70;
  align-items:center;justify-content:space-between;padding:0 18px;
  background:var(--ink-900);border-bottom:1px solid var(--line-dark);
}
.mobile-bar .brand-mark{width:32px;height:32px;flex:0 0 32px;border-radius:10px;font-size:13px;}
.mobile-brand{display:flex;align-items:center;gap:10px;}
.mobile-brand b{color:var(--text-on-dark);font-size:15px;font-weight:700;}
.burger{
  width:44px;height:44px;border:1px solid var(--line-dark);border-radius:12px;
  background:transparent;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:5px;
  cursor:pointer;
}
.burger span{display:block;width:18px;height:2px;background:var(--text-on-dark);border-radius:2px;transition:transform var(--t-base) var(--ease),opacity var(--t-fast) var(--ease);}
.burger.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.burger.is-open span:nth-child(2){opacity:0;}
.burger.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;width:300px;max-width:86vw;z-index:80;
  background:var(--ink-900);border-left:1px solid var(--line-dark);
  transform:translateX(100%);transition:transform 300ms var(--ease);
  display:flex;flex-direction:column;padding:0;
}
.mobile-drawer.is-open{transform:translateX(0);}
.drawer-head{height:60px;display:flex;align-items:center;padding:0 20px;border-bottom:1px solid var(--line-dark);color:var(--text-on-dark);font-weight:700;}
.drawer-list{flex:1 1 auto;overflow-y:auto;padding:8px 0;}
.drawer-list a{
  display:flex;align-items:center;gap:12px;height:52px;padding:0 20px;
  color:var(--text-on-dark-2);font-size:15px;border-bottom:1px solid var(--line-dark);
}
.drawer-list a:hover,.drawer-list a.is-active{color:#fff;background:rgba(108,75,255,.14);}
.drawer-foot{padding:18px 20px;}
.drawer-foot .btn-main{width:100%;height:46px;padding:0;}
.drawer-mask{
  position:fixed;inset:0;background:rgba(18,14,31,.55);z-index:75;opacity:0;visibility:hidden;
  transition:opacity var(--t-base) var(--ease),visibility var(--t-base) var(--ease);
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
/* ========== 按钮 ========== */
.btn-main,.btn-ghost,.btn-text{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  cursor:pointer;text-align:center;white-space:nowrap;
  transition:all var(--t-base) var(--ease);
}
.btn-main{
  height:48px;padding:0 28px;border:none;border-radius:var(--r-pill);
  background:var(--grad-brand);color:#fff;font-size:15px;font-weight:700;
  box-shadow:0 14px -12px rgba(108,75,255,.55);
}
.btn-main:hover{filter:brightness(1.08);box-shadow:var(--sh-3);color:#fff;transform:translateY(-1px);}
.btn-main:active{transform:scale(.98);}
.btn-ghost{
  height:48px;padding:0 26px;border-radius:var(--r-pill);
  border:1.5px solid rgba(255,255,255,.28);background:transparent;
  color:var(--text-on-dark);font-size:15px;font-weight:600;
}
.btn-ghost:hover{background:rgba(108,75,255,.14);border-color:rgba(255,255,255,.45);color:#fff;}
.btn-ghost:active{transform:scale(.98);}
.btn-ghost--light{border-color:var(--line-light);color:var(--text-900);}
.btn-ghost--light:hover{background:rgba(108,75,255,.10);border-color:rgba(108,75,255,.35);color:var(--brand-1);}
.btn-text{
  background:none;border:none;padding:0;color:var(--brand-1);font-size:14px;font-weight:600;
}
.btn-text i{transition:transform var(--t-base) var(--ease);}
.btn-text:hover{color:var(--brand-2);}
.btn-text:hover i{transform:translateX(4px);}
/* ========== 标签与徽章 ========== */
.tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-pill);
  font-size:12px;letter-spacing:.02em;
  border:1px solid rgba(108,75,255,.32);
  background:rgba(108,75,255,.08);
  color:var(--brand-1);
}
.tag--teal{border-color:rgba(34,227,192,.42);background:rgba(34,227,192,.10);color:#0E9C86;}
.tag--orange{border-color:rgba(255,122,61,.42);background:rgba(255,122,61,.10);color:#D3551D;}
.tag--dark{border-color:var(--line-dark);background:rgba(255,255,255,.06);color:var(--text-on-dark-2);}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums;}
.unit{font-size:12px;margin-left:2px;vertical-align:2px;}
/* ========== Hero ========== */
.hero{
  position:relative;min-height:520px;height:min(86vh,720px);
  display:flex;align-items:center;
  background-image:linear-gradient(100deg,rgba(18,14,31,.94) 0%,rgba(18,14,31,.72) 52%,rgba(108,75,255,.42) 100%),url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;
  overflow:hidden;
}
.hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:var(--grad-brand);opacity:.7;
}
.hero-inner{width:100%;max-width:1240px;margin:0 auto;padding:96px 40px 72px;position:relative;z-index:2;}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.hero h1{
  color:#fff;font-size:clamp(30px,4.2vw,52px);font-weight:800;line-height:1.18;letter-spacing:-.02em;
  margin-bottom:20px;
}
.hero-sub{color:var(--text-on-dark-2);font-size:17px;line-height:1.8;max-width:560px;margin-bottom:32px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
.hero-kicker{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;margin-bottom:22px;
  border-radius:var(--r-pill);border:1px solid var(--line-dark);background:rgba(255,255,255,.06);
  color:var(--text-on-dark);font-size:13px;letter-spacing:.04em;
}
.hero-kicker::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent-1);}
.hero-stack{position:relative;padding-bottom:34px;padding-left:24px;}
.stack-card{
  border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line-dark);
  box-shadow:0 30px 60px -30px rgba(0,0,0,.75);
  background:var(--ink-800);
}
.stack-card img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/10;}
.stack-card--main{position:relative;z-index:1;}
.stack-card--sub{
  position:absolute;left:-4px;bottom:0;width:62%;z-index:2;
  border:1px solid rgba(255,255,255,.16);
}
.stack-card--sub img{aspect-ratio:4/3;}
.stack-badge{
  position:absolute;right:6px;top:34px;z-index:3;
  background:var(--ink-900);border:1px solid rgba(34,227,192,.45);border-radius:var(--r-md);
  padding:12px 16px;box-shadow:var(--sh-2);text-align:center;
}
.stack-badge .num{display:block;font-size:26px;font-weight:800;color:var(--accent-1);line-height:1.1;}
.stack-badge em{display:block;font-style:normal;font-size:12px;color:var(--text-on-dark-2);margin-top:4px;}
/* ========== 通用板块 ========== */
.section{padding:96px 0;}
.section--paper{background:var(--paper-0);}
.section--soft{background:var(--paper-1);}
.section-head{margin-bottom:48px;}
.section-head--split{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.16em;
  color:var(--text-500);text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:24px;height:3px;border-radius:3px;background:var(--grad-brand);}
.section h2{font-size:clamp(23px,2.6vw,34px);font-weight:700;line-height:1.28;position:relative;}
.section-lead{color:var(--text-700);font-size:16px;line-height:1.85;max-width:720px;margin-top:14px;}
/* ========== 数据条 ========== */
.stats-bar{
  background:var(--paper-0);border:1px solid var(--line-light);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);padding:28px 24px;margin-top:-56px;position:relative;z-index:5;
}
.stat{text-align:left;padding:8px 12px;}
.stat .stat-num{font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:clamp(26px,3vw,38px);font-weight:800;color:var(--text-900);line-height:1.1;}
.stat .stat-num small{font-size:13px;font-weight:600;color:var(--brand-1);margin-left:4px;}
.stat p{margin:8px 0 0;font-size:12px;color:var(--text-500);letter-spacing:.02em;}
.stat + .stat{border-left:1px solid var(--line-light);}
/* ========== 玩法 zigzag ========== */
.step-row{display:flex;align-items:center;gap:40px;padding:48px 0;}
.step-row + .step-row{border-top:1px solid rgba(232,228,245,.7);}
.step-row.reverse{flex-direction:row-reverse;}
.step-text{flex:1 1 50%;}
.step-media{flex:1 1 50%;}
.step-index{
  font-family:var(--font-num);font-size:34px;font-weight:800;line-height:1;
  background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;color:transparent;
  letter-spacing:-.02em;
}
.step-row h3{font-size:clamp(18px,1.6vw,21px);margin:14px 0 12px;font-weight:600;}
.step-row p{color:var(--text-700);font-size:15px;line-height:1.85;margin-bottom:16px;}
.step-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-lg);
  border:1px solid var(--line-light);box-shadow:var(--sh-1);
}
/* ========== 卡片 ========== */
.card{
  background:var(--paper-0);border:1px solid var(--line-light);border-radius:var(--r-md);
  box-shadow:var(--sh-1);padding:22px;height:100%;
  display:flex;flex-direction:column;
  transition:transform var(--t-base) var(--ease),box-shadow var(--t-base) var(--ease);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-3);}
.card:active{transform:translateY(-1px);}
.card-media{position:relative;border-radius:var(--r-sm);overflow:hidden;margin-bottom:16px;}
.card-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform var(--t-base) var(--ease);}
.card:hover .card-media img{transform:scale(1.04);}
.card-media--small img{aspect-ratio:4/3;}
.card h3{font-size:17px;line-height:1.5;margin-bottom:10px;font-weight:600;}
.card p{font-size:13px;color:var(--text-700);line-height:1.75;margin-bottom:14px;}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;}
.card-badge{
  position:absolute;top:12px;left:12px;z-index:2;
  background:rgba(18,14,31,.82);border:1px solid rgba(34,227,192,.5);
  color:var(--accent-1);border-radius:var(--r-pill);
  font-family:var(--font-num);font-size:12px;padding:4px 12px;
}
.card-badge--orange{border-color:rgba(255,122,61,.55);color:#FF9C6B;}
.card--lead{flex-direction:row;align-items:center;gap:28px;padding:28px;border-radius:var(--r-lg);}
.card--lead .card-media{flex:0 0 46%;margin-bottom:0;}
.card--lead .card-body{flex:1 1 auto;}
.card--lead h3{font-size:clamp(18px,1.6vw,21px);}
.card--lead p{font-size:14px;}
/* ========== 进度时间轴 ========== */
.progress-panel{
  background:var(--ink-800);border-radius:var(--r-xl);padding:40px;color:var(--text-on-dark);
  border:1px solid var(--line-dark);
}
.progress-head{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:36px;}
.progress-head h2{color:#fff;}
.progress-head span{font-size:13px;color:var(--text-on-dark-2);}
.timeline{display:flex;gap:0;}
.tl-node{flex:1 1 0;position:relative;padding-right:16px;}
.tl-dot{
  width:14px;height:14px;border-radius:50%;background:rgba(255,255,255,.22);position:relative;z-index:2;
}
.tl-node.done .tl-dot{background:var(--grad-brand);}
.tl-node.current .tl-dot{background:var(--grad-brand);animation:pulse 2s infinite;}
.tl-line{position:absolute;left:14px;right:0;top:6px;height:2px;background:rgba(255,255,255,.14);}
.tl-node.done .tl-line{background:var(--grad-brand);}
.tl-node:last-child .tl-line{display:none;}
.tl-label{margin-top:16px;font-size:15px;font-weight:600;color:var(--text-on-dark);}
.tl-sub{margin-top:6px;font-size:12px;color:var(--text-on-dark-2);line-height:1.6;}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(108,75,255,.55);}
  100%{box-shadow:0 0 0 14px rgba(108,75,255,0);}
}
.progress-track{
  margin-top:36px;height:8px;border-radius:var(--r-pill);background:rgba(255,255,255,.10);overflow:hidden;
}
.progress-fill{height:100%;border-radius:var(--r-pill);background:var(--grad-brand);width:68%;animation:barGrow 1.2s var(--ease) both;}
@keyframes barGrow{from{width:0;}}
.progress-meta{display:flex;justify-content:space-between;margin-top:12px;font-size:12px;color:var(--text-on-dark-2);font-family:var(--font-num);}
/* ========== CTA 带 ========== */
.cta-band{
  position:relative;background:var(--ink-900);padding:64px 0;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;top:-160px;right:-80px;width:480px;height:480px;border-radius:50%;
  background:radial-gradient(circle,rgba(108,75,255,.30) 0%,rgba(108,75,255,0) 70%);
}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.cta-inner h2{color:#fff;font-size:clamp(22px,2.4vw,30px);}
.cta-inner p{margin:12px 0 0;color:var(--text-on-dark-2);font-size:14px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}
/* ========== 资讯列表 ========== */
.post-list{display:flex;flex-wrap:wrap;margin:-12px;}
.post-cell{padding:12px;width:50%;}
.post-cell--lead{width:100%;}
.post-card{
  background:var(--paper-0);border:1px solid var(--line-light);border-radius:var(--r-md);
  box-shadow:var(--sh-1);padding:22px;height:100%;display:flex;flex-direction:column;
  transition:transform var(--t-base) var(--ease),box-shadow var(--t-base) var(--ease);
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--sh-3);}
.post-card h3{font-size:17px;line-height:1.5;margin-bottom:10px;font-weight:600;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-card p{font-size:14px;color:var(--text-700);line-height:1.75;margin-bottom:16px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-meta{display:flex;align-items:center;gap:14px;margin-top:auto;}
.post-time{font-family:var(--font-num);font-size:13px;color:var(--text-500);}
.post-card--lead{flex-direction:row;gap:28px;padding:28px;border-radius:var(--r-lg);}
.post-card--lead h3{font-size:21px;}
.post-card--lead .post-body{flex:1 1 auto;display:flex;flex-direction:column;}
.empty-state{
  min-height:200px;background:var(--paper-0);border:1px dashed var(--line-light);border-radius:var(--r-lg);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;
  text-align:center;padding:32px;
}
.empty-state i{font-size:48px;color:var(--text-500);line-height:1;}
.empty-state strong{font-size:15px;font-weight:600;color:var(--text-700);}
.empty-state span{font-size:13px;color:var(--text-500);}
/* ========== FAQ ========== */
.accordion{background:transparent;border:none;margin:0;}
.accordion .accordion-item{
  border:none;background:var(--paper-0);border:1px solid var(--line-light);
  border-radius:var(--r-md);margin-bottom:12px;overflow:hidden;box-shadow:var(--sh-1);
}
.accordion .accordion-title{
  border:none;background:transparent;color:var(--text-900);
  font-size:15px;font-weight:600;line-height:56px;padding:0 56px 0 22px;
  position:relative;transition:background var(--t-fast) var(--ease);
}
.accordion .accordion-title::before{
  content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;right:22px;top:0;line-height:56px;font-size:13px;color:var(--brand-1);
  transition:transform var(--t-base) var(--ease),color var(--t-base) var(--ease);
}
.accordion .accordion-item.is-active .accordion-title::before{transform:rotate(135deg);color:var(--brand-2);}
.accordion .accordion-item.is-active .accordion-title{background:rgba(108,75,255,.05);}
.accordion .accordion-item.is-active .accordion-title::after{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:0 3px 3px 0;background:var(--grad-brand);
}
.accordion .accordion-content{
  border:none;background:transparent;padding:0 22px 20px;color:var(--text-700);
  font-size:15px;line-height:1.8;
}
/* ========== 表单 ========== */
.contact-card{
  background:var(--paper-0);border:1px solid var(--line-light);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);padding:40px;
}
.field{margin-bottom:18px;}
.field label{display:block;font-size:13px;color:var(--text-700);margin-bottom:8px;font-weight:600;}
.field input,.field textarea{
  width:100%;border:1px solid var(--line-light);border-radius:var(--r-sm);
  padding:0 16px;height:46px;background:var(--paper-0);color:var(--text-900);
  transition:border-color var(--t-fast) var(--ease),box-shadow var(--t-fast) var(--ease);
}
.field textarea{height:130px;padding:14px 16px;resize:vertical;line-height:1.7;}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--brand-1);box-shadow:0 0 0 3px rgba(108,75,255,.18);
}
.field input::placeholder,.field textarea::placeholder{color:var(--text-500);}
.form-note{font-size:12px;color:var(--text-500);margin-top:14px;line-height:1.7;}
/* ========== 页脚 ========== */
.site-footer{background:var(--ink-900);color:var(--text-on-dark-2);padding:64px 0 0;position:relative;}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;width:96px;height:3px;border-radius:0 3px 3px 0;background:var(--grad-brand);
}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px;}
.footer-brand b{color:#fff;font-size:16px;}
.footer-col h4{color:#fff;font-size:14px;letter-spacing:.06em;margin-bottom:18px;font-weight:700;}
.footer-col p{font-size:13px;line-height:1.8;color:var(--text-on-dark-2);}
.footer-links li{line-height:34px;}
.footer-links a{
  display:inline-block;color:var(--text-on-dark-2);font-size:13px;position:relative;padding-left:0;
  transition:color var(--t-fast) var(--ease),padding-left var(--t-fast) var(--ease);
}
.footer-links a::before{
  content:"";position:absolute;left:0;top:50%;width:0;height:2px;border-radius:2px;
  background:var(--grad-brand);transform:translateY(-50%);
  transition:width var(--t-fast) var(--ease);
}
.footer-links a:hover{color:#fff;padding-left:10px;}
.footer-links a:hover::before{width:6px;}
.footer-bottom{
  margin-top:48px;border-top:1px solid var(--line-dark);padding:22px 0;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12px;color:var(--text-on-dark-2);
}
/* ========== 响应式 ========== */
@media screen and (max-width:1279px){
  .container{padding:0 28px;}
  .hero-inner{padding:88px 28px 64px;}
}
@media screen and (max-width:1023px){
  .side-nav{display:none;}
  .page-wrap{margin-left:0;padding-top:60px;}
  .mobile-bar{display:flex;}
  .hero{height:auto;min-height:0;padding:0;}
  .hero-inner{padding:68px 24px 56px;}
  .hero-stack{margin-top:44px;padding-left:0;padding-bottom:28px;}
  .stack-card--sub{left:0;bottom:0;width:58%;}
  .stack-badge{right:0;top:-14px;}
  .section{padding:64px 0;}
  .stats-bar{margin-top:0;}
  .stat + .stat{border-left:none;}
  .step-row,.step-row.reverse{flex-direction:column;gap:24px;padding:36px 0;}
  .card--lead,.post-card--lead{flex-direction:column;align-items:stretch;}
  .card--lead .card-media{flex:none;}
  .timeline{flex-direction:column;gap:24px;}
  .tl-node{padding-right:0;}
  .tl-line{left:6px;top:14px;bottom:-24px;right:auto;width:2px;height:auto;}
  .contact-card{padding:28px;}
}
@media screen and (max-width:767px){
  .container{padding:0 18px;}
  .hero-inner{padding:56px 18px 48px;}
  .post-cell,.post-cell--lead{width:100%;}
  .post-list{margin:-8px;}
  .post-cell{padding:8px;}
  .section{padding:48px 0;}
  .section-head{margin-bottom:32px;}
  .stats-bar{padding:20px 16px;}
  .stat{padding:12px 4px;}
  .progress-panel{padding:26px 20px;}
  .cta-band{padding:48px 0;}
  .cta-actions{width:100%;}
  .cta-actions .btn-main,.cta-actions .btn-ghost{width:100%;}
  .hero-actions .btn-main,.hero-actions .btn-ghost{width:100%;}
  .contact-card{padding:22px 18px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media screen and (max-width:519px){
  .hero h1{font-size:30px;}
  .stack-badge .num{font-size:22px;}
  .step-index{font-size:28px;}
}

/* roulang page: category1 */
:root{
  --brand-1:#6C4BFF;
  --brand-2:#A24BFF;
  --accent-1:#22E3C0;
  --accent-2:#FF7A3D;
  --grad-brand:linear-gradient(120deg,#6C4BFF 0%,#A24BFF 52%,#FF7A3D 100%);
  --ink-900:#120E1F;
  --ink-800:#1A1430;
  --ink-700:#241C3D;
  --paper-0:#FFFFFF;
  --paper-1:#F7F5FF;
  --line-light:#E8E4F5;
  --line-dark:rgba(255,255,255,.10);
  --text-on-dark:rgba(255,255,255,.94);
  --text-on-dark-2:rgba(255,255,255,.66);
  --text-900:#1A1430;
  --text-700:#4A4360;
  --text-500:#8A83A0;
  --r-xs:10px; --r-sm:14px; --r-md:18px; --r-lg:24px; --r-xl:32px; --r-pill:999px;
  --sh-1:0 12px 26px -20px rgba(18,14,31,.45);
  --sh-2:0 22px 40px -28px rgba(18,14,31,.60);
  --sh-3:0 34px 56px -30px rgba(108,75,255,.45);
  --ease:cubic-bezier(.2,.7,.3,1);
  --t-fast:180ms; --t-base:240ms;
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-num:ui-monospace,"SF Mono","Roboto Mono",monospace;
  --nav-w:260px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  color:var(--text-900);
  background:var(--paper-1);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand-1);text-decoration:none;transition:color var(--t-fast) var(--ease)}
a:hover,a:focus{color:var(--brand-2)}
button{font-family:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--text-900);letter-spacing:-.01em}
p{margin:0}
:focus-visible{outline:2px solid var(--accent-1);outline-offset:2px;border-radius:6px}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--ink-900);color:#fff;padding:10px 16px;z-index:200}
.skip-link:focus{left:12px;top:12px;color:#fff}

/* ===== 容器 ===== */
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 40px}
@media(max-width:1023px){.container{padding:0 28px}}
@media(max-width:639px){.container{padding:0 18px}}

/* ===== 左侧竖向导航 ===== */
.side-nav{
  position:fixed;top:0;left:0;bottom:0;width:var(--nav-w);
  background:var(--ink-900);
  border-right:1px solid var(--line-dark);
  display:flex;flex-direction:column;
  padding:0 14px 18px;
  z-index:80;
}
.side-nav-logo{
  display:flex;flex-direction:column;justify-content:center;
  min-height:84px;padding:0 10px;gap:4px;
  border-bottom:1px solid var(--line-dark);
  color:var(--text-on-dark);
}
.side-nav-logo:hover{color:#fff}
.side-nav-logo .logo-main{
  font-size:17px;font-weight:800;letter-spacing:-.01em;
  background:var(--grad-brand);
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;
  line-height:1.25;
}
.side-nav-logo .logo-sub{
  font-family:var(--font-num);font-size:11px;letter-spacing:.06em;
  color:var(--text-on-dark-2);
}
.side-nav-links{
  flex:1;overflow-y:auto;padding:16px 0;display:flex;flex-direction:column;gap:4px;
  scrollbar-width:thin;scrollbar-color:rgba(255,255,255,.14) transparent;
}
.side-nav-links::-webkit-scrollbar{width:4px}
.side-nav-links::-webkit-scrollbar-thumb{background:rgba(255,255,255,.14);border-radius:4px}
.side-nav-link{
  position:relative;display:flex;align-items:center;gap:10px;
  min-height:46px;padding:0 12px;border-radius:var(--r-xs);
  color:var(--text-on-dark-2);font-size:15px;
  transition:background var(--t-fast) var(--ease),color var(--t-fast) var(--ease);
}
.side-nav-link .nav-icon{font-size:12px;color:var(--accent-1);opacity:.7;transition:opacity var(--t-fast) var(--ease)}
.side-nav-link:hover{background:rgba(255,255,255,.06);color:#fff}
.side-nav-link:hover .nav-icon{opacity:1}
.side-nav-link.active{
  background:rgba(108,75,255,.16);
  color:#fff;font-weight:600;
}
.side-nav-link.active::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:3px;
  border-radius:3px;background:var(--grad-brand);
}
.side-nav-link.active .nav-icon{opacity:1;color:var(--accent-1)}
.side-nav-footer{
  padding:14px 12px 0;border-top:1px solid var(--line-dark);
  font-family:var(--font-num);font-size:12px;letter-spacing:.04em;
  color:var(--text-on-dark-2);
}

/* ===== 移动端顶栏与抽屉 ===== */
.mobile-topbar{display:none}
.drawer,.drawer-mask{display:none}
@media(max-width:1023px){
  .side-nav{display:none}
  .mobile-topbar{
    display:flex;align-items:center;justify-content:space-between;
    position:fixed;top:0;left:0;right:0;height:60px;padding:0 18px;
    background:var(--ink-900);border-bottom:1px solid var(--line-dark);z-index:90;
  }
  .mobile-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:15px;font-weight:700}
  .mobile-brand:hover{color:#fff}
  .brand-mark{
    width:30px;height:30px;border-radius:9px;background:var(--grad-brand);
    display:flex;align-items:center;justify-content:center;
    color:#fff;font-family:var(--font-num);font-size:12px;font-weight:700;letter-spacing:.02em;
  }
  .hamburger{
    width:44px;height:44px;border:0;background:transparent;
    display:flex;flex-direction:column;justify-content:center;align-items:center;gap:5px;
    cursor:pointer;border-radius:var(--r-xs);
  }
  .hamburger span{display:block;width:20px;height:2px;background:#fff;border-radius:2px;transition:transform var(--t-base) var(--ease),opacity var(--t-fast) var(--ease)}
  .hamburger.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .hamburger.is-open span:nth-child(2){opacity:0}
  .hamburger.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
  .drawer{
    display:block;position:fixed;top:0;right:0;bottom:0;width:300px;max-width:86vw;
    background:var(--ink-900);z-index:110;padding:18px;
    transform:translateX(100%);transition:transform 300ms var(--ease);
    overflow-y:auto;
  }
  .drawer.is-open{transform:translateX(0)}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;min-height:44px;border-bottom:1px solid var(--line-dark);padding-bottom:12px;color:#fff;font-weight:700}
  .drawer-close{width:44px;height:44px;border:0;background:transparent;color:#fff;font-size:20px;cursor:pointer}
  .drawer-list{margin-top:10px;display:flex;flex-direction:column}
  .drawer-list a{
    display:flex;align-items:center;justify-content:space-between;
    min-height:52px;padding:0 6px;color:var(--text-on-dark-2);font-size:15px;
    border-bottom:1px solid var(--line-dark);
  }
  .drawer-list a.is-active{color:#fff;font-weight:600}
  .drawer-list a.is-active::before{content:"";width:3px;height:18px;border-radius:3px;background:var(--grad-brand);margin-right:10px;order:-1}
  .drawer-cta{margin-top:22px;display:block;text-align:center}
  .drawer-mask{
    display:block;position:fixed;inset:0;background:rgba(18,14,31,.62);
    opacity:0;visibility:hidden;transition:opacity 300ms var(--ease);z-index:100;
  }
  .drawer-mask.is-open{opacity:1;visibility:visible}
  body.no-scroll{overflow:hidden}
}

/* ===== 主内容区 ===== */
.site-main{margin-left:var(--nav-w);display:block}
@media(max-width:1023px){.site-main{margin-left:0;padding-top:60px}}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 28px;border-radius:var(--r-pill);
  font-size:15px;font-weight:700;line-height:1;
  border:1.5px solid transparent;cursor:pointer;
  transition:transform var(--t-fast) var(--ease),box-shadow var(--t-base) var(--ease),background var(--t-base) var(--ease),color var(--t-fast) var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--grad-brand);color:#fff}
.btn-primary:hover,.btn-primary:focus{color:#fff;box-shadow:var(--sh-3);filter:brightness(1.07)}
.btn-primary:active{transform:scale(.98)}
.btn-ghost-dark{background:transparent;border-color:rgba(255,255,255,.28);color:var(--text-on-dark)}
.btn-ghost-dark:hover,.btn-ghost-dark:focus{background:rgba(108,75,255,.18);color:#fff}
.btn-ghost-light{background:transparent;border-color:var(--line-light);color:var(--text-900)}
.btn-ghost-light:hover,.btn-ghost-light:focus{background:rgba(108,75,255,.10);color:var(--brand-1)}
.btn-sm{min-height:40px;padding:0 20px;font-size:14px}
.text-link{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-1);
}
.text-link i{transition:transform var(--t-fast) var(--ease)}
.text-link:hover i{transform:translateX(4px)}

/* ===== 徽章 ===== */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 14px;border-radius:var(--r-pill);
  font-size:13px;letter-spacing:.01em;
  border:1px solid rgba(108,75,255,.32);
  background:rgba(108,75,255,.08);
  color:var(--brand-1);
}
.badge b{font-family:var(--font-num);font-size:15px;font-weight:800}
.badge-accent{border-color:rgba(34,227,192,.42);background:rgba(34,227,192,.10);color:#0E8C79}
.badge-warm{border-color:rgba(255,122,61,.42);background:rgba(255,122,61,.10);color:#C44E15}
.badge-on-dark{border-color:rgba(255,255,255,.24);background:rgba(255,255,255,.08);color:var(--text-on-dark)}
.badge-on-dark b{color:var(--accent-1)}

/* ===== 分类 Hero ===== */
.cat-hero{
  position:relative;min-height:340px;display:flex;align-items:center;
  background-image:linear-gradient(100deg,rgba(18,14,31,.94) 0%,rgba(18,14,31,.76) 54%,rgba(108,75,255,.44) 100%),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  overflow:hidden;
}
.cat-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:3px;
  background:var(--grad-brand);opacity:.85;
}
.cat-hero-inner{width:100%;display:flex;align-items:center;justify-content:space-between;gap:40px;padding-top:56px;padding-bottom:56px}
.cat-hero-text{max-width:720px}
.hero-eyebrow{
  display:inline-block;margin-bottom:14px;
  font-size:13px;letter-spacing:.06em;color:var(--accent-1);
  border-left:3px solid var(--accent-1);padding-left:10px;line-height:1.2;
}
.cat-hero h1{
  color:#fff;font-size:clamp(28px,3.6vw,44px);font-weight:800;
  letter-spacing:-.02em;line-height:1.2;
}
.cat-hero p{
  margin-top:16px;font-size:16px;line-height:1.8;
  color:var(--text-on-dark-2);max-width:640px;
}
.hero-badges{margin-top:22px;display:flex;flex-wrap:wrap;gap:10px}
.cat-hero-deco{
  flex:0 0 auto;width:120px;height:120px;border-radius:var(--r-xl);
  border:1px solid rgba(255,255,255,.16);
  background:rgba(255,255,255,.05);
  display:flex;align-items:center;justify-content:center;
  color:var(--accent-1);font-size:44px;
}
@media(max-width:900px){
  .cat-hero-deco{display:none}
  .cat-hero-inner{padding-top:44px;padding-bottom:44px}
}

/* ===== 板块通用 ===== */
.section{padding:88px 0}
.section-tight{padding:64px 0}
@media(max-width:1023px){.section{padding:64px 0}.section-tight{padding:48px 0}}
@media(max-width:639px){.section{padding:48px 0}.section-tight{padding:38px 0}}
.section-head{max-width:720px;margin-bottom:36px}
.section-head h2{
  position:relative;padding-left:16px;
  font-size:clamp(23px,2.6vw,32px);font-weight:700;line-height:1.3;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;
  border-radius:4px;background:var(--grad-brand);
}
.section-head p{margin-top:12px;font-size:15px;line-height:1.8;color:var(--text-700)}

/* ===== 项目类型矩阵 ===== */
.matrix-section{background:var(--paper-0);border-bottom:1px solid var(--line-light)}
.matrix-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.matrix-item{
  padding:22px 18px;border-radius:var(--r-md);
  background:var(--paper-1);border:1px solid var(--line-light);
  transition:transform var(--t-base) var(--ease),box-shadow var(--t-base) var(--ease),border-color var(--t-base) var(--ease);
}
.matrix-item:hover{transform:translateY(-4px);box-shadow:var(--sh-3);border-color:rgba(108,75,255,.28)}
.matrix-item i{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:var(--r-xs);
  background:rgba(108,75,255,.10);color:var(--brand-1);font-size:17px;
  margin-bottom:14px;
}
.matrix-item h3{font-size:16px;font-weight:600;margin-bottom:6px}
.matrix-item p{font-size:13px;line-height:1.7;color:var(--text-500)}
.matrix-item .matrix-num{
  display:block;margin-top:12px;font-family:var(--font-num);
  font-size:13px;color:var(--brand-1);letter-spacing:.02em;
}
@media(max-width:1023px){.matrix-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:520px){.matrix-grid{grid-template-columns:1fr}}

/* ===== 指南主体双栏 ===== */
.guide-body{background:var(--paper-1)}
.guide-anchor-col{position:relative}
.anchor-card{
  position:sticky;top:24px;
  background:var(--paper-0);border:1px solid var(--line-light);
  border-radius:var(--r-md);padding:20px 16px;box-shadow:var(--sh-1);
}
.anchor-card h3{font-size:14px;letter-spacing:.04em;color:var(--text-500);font-weight:600;margin-bottom:12px;padding-left:2px}
.anchor-list{display:flex;flex-direction:column;gap:2px}
.anchor-list a{
  display:block;padding:10px 10px 10px 14px;border-radius:var(--r-xs);
  font-size:14px;color:var(--text-700);position:relative;
  transition:background var(--t-fast) var(--ease),color var(--t-fast) var(--ease);
}
.anchor-list a::before{
  content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;border-radius:3px;
  background:transparent;transition:background var(--t-fast) var(--ease);
}
.anchor-list a:hover{background:rgba(108,75,255,.07);color:var(--brand-1)}
.anchor-list a.is-current{color:var(--brand-1);font-weight:600;background:rgba(108,75,255,.08)}
.anchor-list a.is-current::before{background:var(--grad-brand)}
@media(max-width:1023px){
  .anchor-card{position:static;margin-bottom:28px}
  .anchor-list{flex-direction:row;flex-wrap:wrap;gap:8px}
  .anchor-list a{padding:8px 14px;background:var(--paper-1);border:1px solid var(--line-light)}
  .anchor-list a::before{display:none}
}
.guide-block{
  padding-bottom:56px;margin-bottom:56px;border-bottom:1px solid rgba(232,228,245,.9);
  scroll-margin-top:24px;
}
.guide-block:last-child{border-bottom:0;margin-bottom:0;padding-bottom:0}
.guide-figure{margin:0 0 26px;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line-light);background:var(--paper-0)}
.guide-figure img{width:100%;aspect-ratio:21/9;object-fit:cover;transition:transform 500ms var(--ease)}
.guide-figure:hover img{transform:scale(1.03)}
.guide-block h2{
  position:relative;padding-left:16px;margin-bottom:16px;
  font-size:clamp(21px,2.2vw,28px);line-height:1.35;
}
.guide-block h2::before{
  content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:4px;border-radius:4px;background:var(--grad-brand);
}
.guide-block p{font-size:16px;line-height:1.85;color:var(--text-700);margin-bottom:14px}
.point-list{margin-top:18px;display:flex;flex-direction:column;gap:10px}
.point-list li{
  position:relative;padding-left:20px;font-size:15px;line-height:1.75;color:var(--text-900);
}
.point-list li::before{
  content:"";position:absolute;left:0;top:.62em;width:7px;height:7px;border-radius:50%;
  background:var(--accent-1);box-shadow:0 0 0 3px rgba(34,227,192,.16);
}
.guide-meta{
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;margin-top:20px;
  padding-top:16px;border-top:1px dashed var(--line-light);
  font-size:13px;color:var(--text-500);
}
.guide-meta .num{font-family:var(--font-num);color:var(--brand-1);font-weight:700}

/* ===== FAQ ===== */
.faq-section{background:var(--paper-0);border-top:1px solid var(--line-light)}
.faq-wrap{max-width:900px;margin:0 auto}
.accordion{border:0;background:transparent;margin:0}
.accordion .accordion-item{
  background:var(--paper-0);
  border:1px solid var(--line-light);
  border-radius:var(--r-md);
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color var(--t-base) var(--ease),box-shadow var(--t-base) var(--ease);
}
.accordion .accordion-item.is-active{border-color:rgba(108,75,255,.32);box-shadow:var(--sh-1)}
.accordion .accordion-title{
  position:relative;
  display:flex;align-items:center;
  min-height:56px;padding:0 56px 0 20px;
  font-size:15px;font-weight:600;color:var(--text-900) !important;
  background:transparent !important;
  border:0;line-height:1.5;
}
.accordion .accordion-title::before,
.accordion .accordion-title::after{
  display:none !important;content:none !important;border:0 !important;
}
.accordion-icon{
  position:absolute;right:20px;top:50%;transform:translateY(-50%);
  width:20px;height:20px;display:flex;align-items:center;justify-content:center;
  color:var(--text-500);font-size:13px;
  transition:transform var(--t-base) var(--ease),color var(--t-base) var(--ease);
}
.accordion .accordion-item.is-active .accordion-title::before{
  content:"" !important;display:block !important;
  position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:3px;
  background:var(--grad-brand);border:0 !important;
}
.accordion .accordion-item.is-active .accordion-icon{transform:translateY(-50%) rotate(180deg);color:var(--brand-1)}
.accordion .accordion-content{
  padding:0 20px 20px;border:0 !important;background:transparent !important;
  font-size:15px;line-height:1.8;color:var(--text-700);
}
.accordion .accordion-content p{font-size:15px;line-height:1.8;color:var(--text-700)}
.accordion .accordion-item:focus-within{border-color:rgba(34,227,192,.5)}

/* ===== CTA 带 ===== */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--ink-900);
  min-height:220px;display:flex;align-items:center;
}
.cta-band::before{
  content:"";position:absolute;right:-120px;top:-140px;width:480px;height:480px;border-radius:50%;
  background:radial-gradient(circle,rgba(108,75,255,.30) 0%,rgba(108,75,255,0) 68%);
}
.cta-inner{
  position:relative;z-index:1;width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  padding:48px 0;
}
.cta-inner h2{color:#fff;font-size:clamp(22px,2.4vw,30px);line-height:1.3}
.cta-inner p{margin-top:10px;font-size:14px;color:var(--text-on-dark-2);line-height:1.8}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}
@media(max-width:860px){
  .cta-inner{flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
}

/* ===== 页脚 ===== */
.site-footer{
  background:var(--ink-900);
  color:var(--text-on-dark-2);
  padding:64px 0 0;
  position:relative;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:40px;width:96px;height:3px;
  border-radius:3px;background:var(--grad-brand);
}
.site-footer h4{
  color:var(--text-on-dark);font-size:15px;font-weight:600;margin-bottom:16px;
}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.footer-brand b{color:#fff;font-size:16px;font-weight:800}
.site-footer p{font-size:13px;line-height:1.85;color:var(--text-on-dark-2)}
.footer-links{display:flex;flex-direction:column}
.footer-links li a{
  position:relative;display:inline-block;line-height:34px;
  font-size:14px;color:var(--text-on-dark-2);padding-left:0;
  transition:color var(--t-fast) var(--ease),padding-left var(--t-fast) var(--ease);
}
.footer-links li a::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:0;height:12px;border-radius:2px;background:var(--grad-brand);
  transition:width var(--t-fast) var(--ease);
}
.footer-links li a:hover{color:#fff;padding-left:12px}
.footer-links li a:hover::before{width:2px}
.footer-bottom{
  margin-top:48px;padding:20px 0 26px;
  border-top:1px solid var(--line-dark);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:12px;color:rgba(255,255,255,.46);
}
@media(max-width:639px){
  .site-footer{padding-top:52px}
  .site-footer::before{left:18px}
  .footer-bottom{flex-direction:column}
}

/* roulang page: article */
:root{
  --brand-1:#6C4BFF;
  --brand-2:#A24BFF;
  --accent-1:#22E3C0;
  --accent-2:#FF7A3D;
  --grad-brand:linear-gradient(120deg,#6C4BFF 0%,#A24BFF 52%,#FF7A3D 100%);
  --ink-900:#120E1F;
  --ink-800:#1A1430;
  --ink-700:#241C3D;
  --paper-0:#FFFFFF;
  --paper-1:#F7F5FF;
  --line-light:#E8E4F5;
  --line-dark:rgba(255,255,255,.10);
  --text-on-dark:rgba(255,255,255,.94);
  --text-on-dark-2:rgba(255,255,255,.66);
  --text-900:#1A1430;
  --text-700:#4A4360;
  --text-500:#8A83A0;
  --r-xs:10px;
  --r-sm:14px;
  --r-md:18px;
  --r-lg:24px;
  --r-xl:32px;
  --r-pill:999px;
  --sh-1:0 12px -8px rgba(18,14,31,.45);
  --sh-2:0 22px -18px rgba(18,14,31,.60);
  --sh-3:0 34px -22px rgba(108,75,255,.45);
  --ease:cubic-bezier(.2,.7,.3,1);
  --t-fast:180ms;
  --t-base:240ms;
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-num:ui-monospace,"SF Mono","Roboto Mono",monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:84px;}
body{margin:0;font-family:var(--font-sans);font-size:16px;line-height:1.75;color:var(--text-900);background:var(--paper-0);-webkit-font-smoothing:antialiased;}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--brand-1);text-decoration:none;transition:color var(--t-fast) var(--ease);}
a:hover{color:var(--brand-2);}
h1,h2,h3,h4,p{margin:0;}
ul,ol{list-style:none;margin:0;padding:0;}
button{font-family:inherit;border:0;background:none;cursor:pointer;}
:focus-visible{outline:2px solid var(--accent-1);outline-offset:2px;}
.container{max-width:1240px;margin:0 auto;padding:0 40px;width:100%;}

/* ---------- 左侧竖向导航 ---------- */
.side-nav{
  position:fixed;top:0;left:0;bottom:0;width:260px;
  background:var(--ink-900);border-right:1px solid var(--line-dark);
  display:flex;flex-direction:column;z-index:60;
}
.side-nav-logo{
  display:grid;grid-template-columns:38px 1fr;grid-template-rows:auto auto;
  align-items:center;column-gap:12px;
  height:84px;flex:0 0 84px;padding:0 22px;
  border-bottom:1px solid var(--line-dark);
}
.side-nav-logo::before{
  content:"AY";grid-row:1/3;grid-column:1;
  width:38px;height:38px;border-radius:12px;background:var(--grad-brand);
  display:flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:800;letter-spacing:.06em;color:#fff;
}
.side-nav-logo .logo-main{grid-column:2;grid-row:1;font-size:15px;font-weight:800;color:#fff;line-height:1.25;letter-spacing:-.01em;}
.side-nav-logo .logo-sub{grid-column:2;grid-row:2;font-size:11px;color:var(--text-on-dark-2);line-height:1.4;font-family:var(--font-num);letter-spacing:.02em;}
.side-nav-links{flex:1 1 auto;overflow-y:auto;padding:14px 12px;display:flex;flex-direction:column;gap:2px;}
.side-nav-links::-webkit-scrollbar{width:4px;}
.side-nav-links::-webkit-scrollbar-thumb{background:rgba(255,255,255,.14);border-radius:2px;}
.side-nav-link{
  position:relative;display:flex;align-items:center;gap:10px;
  height:46px;padding:0 14px;border-radius:var(--r-sm);
  color:var(--text-on-dark-2);font-size:15px;
  transition:background var(--t-fast) var(--ease),color var(--t-fast) var(--ease);
}
.side-nav-link:hover{background:rgba(255,255,255,.06);color:#fff;}
.side-nav-link.active{background:rgba(108,75,255,.16);color:#fff;}
.side-nav-link.active::before{
  content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;
  border-radius:2px;background:var(--grad-brand);
}
.nav-icon{font-size:15px;line-height:1;color:var(--accent-1);}
.side-nav-footer{
  padding:16px 22px 20px;border-top:1px solid var(--line-dark);
  font-size:12px;color:var(--text-on-dark-2);font-family:var(--font-num);letter-spacing:.02em;
}
.page-shell{margin-left:260px;min-height:100vh;display:flex;flex-direction:column;}
.page-shell main{flex:1 1 auto;}

/* ---------- 移动端导航 ---------- */
.mobile-bar{display:none;}
.menu-toggle{width:44px;height:44px;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:5px;border-radius:var(--r-xs);}
.menu-toggle span{display:block;width:20px;height:2px;background:#fff;border-radius:2px;transition:transform var(--t-fast) var(--ease),opacity var(--t-fast) var(--ease);}
.menu-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.menu-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.menu-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);
  background:var(--ink-900);z-index:100;transform:translateX(102%);
  transition:transform 300ms var(--ease);display:flex;flex-direction:column;overflow-y:auto;
}
.drawer.open{transform:translateX(0);}
.drawer-mask{
  position:fixed;inset:0;background:rgba(10,8,20,.62);z-index:90;
  opacity:0;visibility:hidden;transition:opacity 300ms var(--ease),visibility 300ms var(--ease);
}
.drawer-mask.open{opacity:1;visibility:visible;}
body.no-scroll{overflow:hidden;}
.drawer-head{display:flex;align-items:center;gap:10px;height:60px;padding:0 18px;border-bottom:1px solid var(--line-dark);color:#fff;}
.drawer-head b{font-size:15px;}
.drawer-close{margin-left:auto;width:36px;height:36px;color:var(--text-on-dark-2);font-size:22px;line-height:1;border-radius:var(--r-xs);}
.drawer-close:hover{color:#fff;}
.drawer-links{padding:8px 0;}
.drawer-links li{border-bottom:1px solid var(--line-dark);}
.drawer-links a{display:flex;align-items:center;height:52px;padding:0 20px;color:var(--text-on-dark-2);font-size:15px;}
.drawer-links a:hover,.drawer-links a.active{color:#fff;background:rgba(108,75,255,.14);}
.drawer-foot{margin-top:auto;padding:18px;border-top:1px solid var(--line-dark);}
.drawer-foot .btn{width:100%;}
.brand-mark{
  width:38px;height:38px;border-radius:12px;background:var(--grad-brand);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:800;letter-spacing:.06em;color:#fff;flex:0 0 38px;
}

/* ---------- 面包屑 ---------- */
.breadcrumb-bar{background:var(--paper-1);border-bottom:1px solid var(--line-light);}
.breadcrumb{display:flex;align-items:center;gap:8px;height:56px;font-size:13px;color:var(--text-500);white-space:nowrap;overflow:hidden;}
.breadcrumb a{color:var(--text-700);}
.breadcrumb a:hover{color:var(--brand-1);}
.breadcrumb .sep{color:var(--text-500);opacity:.55;}
.breadcrumb .current{color:var(--text-500);overflow:hidden;text-overflow:ellipsis;max-width:52%;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--r-pill);
  font-size:15px;font-weight:700;border:1.5px solid transparent;cursor:pointer;
  transition:background var(--t-base) var(--ease),color var(--t-base) var(--ease),
             box-shadow var(--t-base) var(--ease),transform var(--t-base) var(--ease),filter var(--t-base) var(--ease);
  min-width:44px;
}
.btn-primary{background:var(--grad-brand);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{color:#fff;filter:brightness(1.06);box-shadow:var(--sh-3);}
.btn-primary:active{transform:scale(.98);}
.btn-ghost{background:transparent;border-color:var(--line-light);color:var(--text-700);}
.btn-ghost:hover{background:rgba(108,75,255,.10);color:var(--brand-1);border-color:rgba(108,75,255,.32);}
.btn-ghost:active{transform:scale(.98);}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 14px;
  border-radius:var(--r-pill);font-size:13px;font-weight:600;
  border:1px solid transparent;white-space:nowrap;
}
.badge-brand{color:var(--brand-1);background:rgba(108,75,255,.08);border-color:rgba(108,75,255,.24);}
.badge-soft{color:var(--text-700);background:var(--paper-1);border-color:var(--line-light);}

/* ---------- 文章头 ---------- */
.article-head{background:var(--paper-0);padding:44px 0 30px;}
.article-head h1{
  font-size:clamp(26px,3.4vw,40px);font-weight:800;line-height:1.3;
  letter-spacing:-.02em;margin:16px 0 0;max-width:900px;overflow-wrap:break-word;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  margin-top:22px;padding-top:18px;border-top:1px solid var(--line-light);
  font-size:13px;color:var(--text-500);
}
.meta-item{display:inline-flex;align-items:center;gap:6px;}
.meta-item .dot{width:4px;height:4px;border-radius:50%;background:var(--brand-2);opacity:.65;display:inline-block;}
.meta-num{font-family:var(--font-num);font-variant-numeric:tabular-nums;letter-spacing:.01em;}

/* ---------- 正文 ---------- */
.article-body-wrap{padding:52px 0 76px;background:var(--paper-0);}
.entry-content{
  max-width:760px;font-size:17px;line-height:1.9;color:var(--text-900);
  overflow-wrap:break-word;word-break:break-word;
}
.entry-content p{margin:0 0 1.15em;}
.entry-content h2{
  position:relative;font-size:clamp(22px,2.4vw,28px);font-weight:700;line-height:1.35;
  margin:2.2em 0 .9em;padding-left:12px;
}
.entry-content h2::before{
  content:"";position:absolute;left:0;top:.2em;width:4px;height:20px;
  border-radius:2px;background:var(--grad-brand);
}
.entry-content h3{
  position:relative;font-size:19px;font-weight:600;line-height:1.45;
  margin:1.8em 0 .7em;padding-left:16px;
}
.entry-content h3::before{
  content:"";position:absolute;left:0;top:.55em;width:8px;height:8px;
  border-radius:2px;background:var(--grad-brand);
}
.entry-content h4{font-size:17px;font-weight:600;margin:1.5em 0 .6em;}
.entry-content ul,.entry-content ol{margin:0 0 1.15em;padding-left:6px;}
.entry-content ul li{position:relative;padding-left:20px;margin-bottom:.5em;}
.entry-content ul li::before{
  content:"";position:absolute;left:0;top:.72em;width:6px;height:6px;
  border-radius:50%;background:var(--accent-1);
}
.entry-content ol{counter-reset:entry-ol;}
.entry-content ol li{position:relative;padding-left:24px;margin-bottom:.5em;counter-increment:entry-ol;}
.entry-content ol li::before{
  content:counter(entry-ol);position:absolute;left:0;top:.25em;
  font-family:var(--font-num);font-size:13px;font-weight:700;color:var(--brand-1);
}
.entry-content blockquote{
  margin:1.5em 0;padding:16px 20px;background:var(--paper-1);
  border-left:3px solid var(--brand-1);border-radius:var(--r-sm);
  color:var(--text-700);font-size:16px;
}
.entry-content img{border-radius:var(--r-sm);margin:1.5em auto;height:auto;}
.entry-content figure{margin:1.5em 0;}
.entry-content figcaption{font-size:13px;color:var(--text-500);text-align:center;margin-top:10px;}
.entry-content table{
  width:100%;border-collapse:collapse;margin:1.5em 0;font-size:15px;
  border:1px solid var(--line-light);border-radius:var(--r-sm);overflow:hidden;
}
.entry-content thead th{background:var(--paper-1);font-weight:600;text-align:left;color:var(--text-900);}
.entry-content th,.entry-content td{padding:12px 14px;border-bottom:1px solid var(--line-light);}
.entry-content tbody tr:nth-child(even){background:rgba(108,75,255,.04);}
.entry-content a{color:var(--brand-1);border-bottom:1px solid rgba(108,75,255,.35);}
.entry-content a:hover{color:var(--brand-2);border-bottom-color:rgba(162,75,255,.55);}
.entry-content hr{border:0;height:1px;background:var(--line-light);margin:2em 0;}
.entry-content code{
  font-family:var(--font-num);font-size:14px;background:var(--paper-1);
  padding:2px 6px;border-radius:6px;color:var(--brand-1);
}

/* ---------- 目录卡 ---------- */
.toc-card{
  position:sticky;top:84px;background:var(--paper-0);
  border:1px solid var(--line-light);border-radius:var(--r-md);
  padding:22px;box-shadow:var(--sh-1);
}
.toc-title{
  font-size:15px;font-weight:700;color:var(--text-900);
  padding-bottom:12px;margin-bottom:12px;border-bottom:1px solid var(--line-light);
}
.toc-list li{margin-bottom:2px;}
.toc-list a{
  position:relative;display:block;padding:8px 10px 8px 14px;
  font-size:14px;line-height:1.5;color:var(--text-700);border-radius:var(--r-xs);
  transition:background var(--t-fast) var(--ease),color var(--t-fast) var(--ease);
}
.toc-list a::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:2px;height:0;border-radius:2px;background:var(--grad-brand);
  transition:height var(--t-fast) var(--ease);
}
.toc-list a:hover{background:var(--paper-1);color:var(--brand-1);}
.toc-list a:hover::before{height:16px;}
.toc-meta{
  margin-top:16px;padding-top:16px;border-top:1px solid var(--line-light);
  font-size:13px;color:var(--text-500);line-height:2;
}
.toc-meta b{color:var(--text-700);font-weight:600;}

/* ---------- 空状态 ---------- */
.empty-state{
  max-width:760px;min-height:240px;background:var(--paper-0);
  border:1px dashed var(--line-light);border-radius:var(--r-lg);
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  text-align:center;padding:44px 24px;
}
.empty-icon{
  width:52px;height:52px;border-radius:16px;border:1px solid var(--line-light);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-num);font-size:22px;font-weight:700;color:var(--brand-1);
  background:var(--paper-1);margin-bottom:18px;
}
.empty-title{font-size:17px;font-weight:700;color:var(--text-900);margin-bottom:8px;}
.empty-desc{font-size:14px;color:var(--text-500);margin-bottom:22px;}

/* ---------- 相关推荐 ---------- */
.related-section{background:var(--paper-1);border-top:1px solid var(--line-light);padding:68px 0 76px;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;flex-wrap:wrap;}
.section-head h2{
  position:relative;font-size:clamp(22px,2.4vw,30px);font-weight:700;
  line-height:1.3;padding-left:14px;color:var(--text-900);
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.18em;width:4px;height:22px;
  border-radius:2px;background:var(--grad-brand);
}
.section-head .section-note{font-size:13px;color:var(--text-500);}
.related-card{
  display:block;height:100%;background:var(--paper-0);
  border:1px solid var(--line-light);border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform var(--t-base) var(--ease),box-shadow var(--t-base) var(--ease);
}
.related-card:hover{transform:translateY(-4px);box-shadow:var(--sh-3);color:inherit;}
.related-card:active{transform:translateY(-1px);}
.related-thumb{aspect-ratio:4/3;overflow:hidden;background:var(--paper-1);}
.related-thumb img{width:100%;height:100%;object-fit:cover;transition:transform var(--t-base) var(--ease);}
.related-card:hover .related-thumb img{transform:scale(1.04);}
.related-body{padding:20px;}
.related-body h3{
  font-size:17px;font-weight:600;line-height:1.5;margin:12px 0 10px;
  color:var(--text-900);transition:color var(--t-fast) var(--ease);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.related-card:hover .related-body h3{color:var(--brand-1);}
.related-meta{font-size:13px;color:var(--text-500);font-family:var(--font-num);}

/* ---------- 返回入口 ---------- */
.back-section{background:var(--paper-0);padding:56px 0 76px;border-top:1px solid var(--line-light);}
.back-actions{display:flex;justify-content:center;gap:16px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;background:var(--ink-900);color:var(--text-on-dark-2);
  padding:68px 0 0;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:96px;height:3px;border-radius:var(--r-pill);background:var(--grad-brand);
}
.site-footer .container{position:relative;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:14px;color:#fff;}
.footer-brand b{font-size:16px;font-weight:700;}
.site-footer p{font-size:13px;line-height:1.85;color:var(--text-on-dark-2);margin:0;}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin:0 0 14px;letter-spacing:.02em;}
.footer-links li{line-height:34px;}
.footer-links a{
  position:relative;display:inline-block;font-size:14px;color:var(--text-on-dark-2);
  padding-left:0;transition:color var(--t-fast) var(--ease),padding var(--t-fast) var(--ease);
}
.footer-links a::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:2px;height:0;border-radius:2px;background:var(--grad-brand);
  transition:height var(--t-fast) var(--ease);
}
.footer-links a:hover{color:#fff;padding-left:10px;}
.footer-links a:hover::before{height:15px;}
.footer-bottom{
  margin-top:48px;border-top:1px solid var(--line-dark);
  padding:20px 0;display:flex;align-items:center;justify-content:space-between;
  gap:12px;flex-wrap:wrap;font-size:12px;color:var(--text-on-dark-2);
  font-family:var(--font-num);letter-spacing:.02em;
}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .side-nav{display:none;}
  .page-shell{margin-left:0;padding-top:60px;}
  .mobile-bar{
    display:flex;position:fixed;top:0;left:0;right:0;height:60px;
    background:var(--ink-900);border-bottom:1px solid var(--line-dark);
    align-items:center;justify-content:space-between;padding:0 18px;z-index:80;
  }
  .mobile-logo{display:flex;align-items:center;gap:10px;color:#fff;}
  .mobile-logo b{font-size:15px;font-weight:700;color:#fff;}
  .mobile-logo .brand-mark{width:32px;height:32px;flex:0 0 32px;font-size:11px;border-radius:10px;}
  .container{padding:0 28px;}
}
@media (max-width:767px){
  .container{padding:0 18px;}
  .breadcrumb{height:48px;}
  .breadcrumb .current{max-width:40%;}
  .article-head{padding:32px 0 22px;}
  .article-body-wrap{padding:34px 0 52px;}
  .entry-content{font-size:16px;line-height:1.85;}
  .related-section{padding:48px 0 56px;}
  .back-section{padding:42px 0 60px;}
  .back-actions .btn{width:100%;}
  .btn{height:48px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .site-footer{padding-top:52px;}
}

/* roulang page: category2 */
:root{
  --brand-1:#6C4BFF;
  --brand-2:#A24BFF;
  --accent-1:#22E3C0;
  --accent-2:#FF7A3D;
  --grad-brand:linear-gradient(120deg,#6C4BFF 0%,#A24BFF 52%,#FF7A3D 100%);
  --ink-900:#120E1F;
  --ink-800:#1A1430;
  --ink-700:#241C3D;
  --paper-0:#FFFFFF;
  --paper-1:#F7F5FF;
  --line-light:#E8E4F5;
  --line-dark:rgba(255,255,255,.10);
  --text-on-dark:rgba(255,255,255,.94);
  --text-on-dark-2:rgba(255,255,255,.66);
  --text-900:#1A1430;
  --text-700:#4A4360;
  --text-500:#8A83A0;
  --r-xs:10px;
  --r-sm:14px;
  --r-md:18px;
  --r-lg:24px;
  --r-xl:32px;
  --r-pill:999px;
  --sh-1:0 14px 34px -22px rgba(18,14,31,.45);
  --sh-2:0 22px 44px -26px rgba(18,14,31,.60);
  --sh-3:0 34px 60px -26px rgba(108,75,255,.45);
  --ease:cubic-bezier(.2,.7,.3,1);
  --t-fast:180ms;
  --t-base:240ms;
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-num:ui-monospace,"SF Mono","Roboto Mono",monospace;
  --nav-w:260px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  color:var(--text-900);
  background:var(--paper-0);
  padding-top:60px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand-1);text-decoration:none;transition:color var(--t-fast) var(--ease);}
a:hover{color:var(--brand-2);}
button{font-family:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-0.01em;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
:focus-visible{outline:2px solid var(--accent-1);outline-offset:2px;border-radius:6px;}
::selection{background:rgba(108,75,255,.22);}

.container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding-left:18px;
  padding-right:18px;
}

/* ---------- 左侧竖向导航 ---------- */
.side-nav{
  display:none;
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--nav-w);
  background:var(--ink-900);
  border-right:1px solid var(--line-dark);
  z-index:60;
  flex-direction:column;
}
.side-nav-logo{
  display:flex;
  flex-direction:column;
  justify-content:center;
  height:84px;
  padding:0 22px;
  border-bottom:1px solid var(--line-dark);
  flex:0 0 auto;
}
.side-nav-logo .logo-main{
  font-size:19px;
  font-weight:800;
  letter-spacing:.01em;
  background:var(--grad-brand);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
  line-height:1.25;
}
.side-nav-logo .logo-sub{
  font-family:var(--font-num);
  font-size:12px;
  color:var(--text-on-dark-2);
  letter-spacing:.08em;
  margin-top:4px;
}
.side-nav-links{
  flex:1 1 auto;
  overflow-y:auto;
  padding:18px 12px;
}
.side-nav-links::-webkit-scrollbar{width:4px;}
.side-nav-links::-webkit-scrollbar-thumb{background:rgba(255,255,255,.14);border-radius:4px;}
.side-nav-link{
  display:flex;
  align-items:center;
  gap:10px;
  height:46px;
  padding:0 14px;
  border-radius:var(--r-sm);
  color:var(--text-on-dark-2);
  font-size:15px;
  position:relative;
  transition:background var(--t-fast) var(--ease),color var(--t-fast) var(--ease);
}
.side-nav-link .nav-icon{
  font-size:9px;
  color:var(--accent-1);
  line-height:1;
  flex:0 0 auto;
}
.side-nav-link:hover{
  color:var(--text-on-dark);
  background:rgba(255,255,255,.06);
}
.side-nav-link.active{
  color:#fff;
  background:rgba(108,75,255,.16);
}
.side-nav-link.active::before{
  content:"";
  position:absolute;
  left:0;top:9px;bottom:9px;
  width:3px;
  border-radius:3px;
  background:var(--grad-brand);
}
.side-nav-footer{
  flex:0 0 auto;
  padding:18px 18px 22px;
  border-top:1px solid var(--line-dark);
}
.side-nav-footer .side-cta{
  display:flex;
  align-items:center;
  justify-content:center;
  width:100%;
  height:44px;
  border-radius:var(--r-pill);
  background:var(--grad-brand);
  color:#fff;
  font-size:14px;
  font-weight:700;
  box-shadow:var(--sh-3);
}
.side-nav-footer .side-cta:hover{color:#fff;filter:brightness(1.08);}
.side-nav-footer .side-note{
  margin-top:12px;
  font-size:12px;
  color:var(--text-on-dark-2);
  text-align:center;
}

/* ---------- 移动端顶栏与抽屉 ---------- */
.mobile-bar{
  position:fixed;
  top:0;left:0;right:0;
  height:60px;
  background:var(--ink-900);
  border-bottom:1px solid var(--line-dark);
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:0 16px;
  z-index:70;
}
.mobile-brand{
  display:flex;
  align-items:center;
  gap:10px;
  color:#fff;
  font-size:16px;
  font-weight:700;
}
.mobile-brand:hover{color:#fff;}
.brand-mark{
  width:34px;height:34px;
  flex:0 0 auto;
  border-radius:10px;
  background:var(--grad-brand);
  display:flex;
  align-items:center;
  justify-content:center;
  font-family:var(--font-num);
  font-size:12px;
  font-weight:700;
  color:#fff;
  letter-spacing:.02em;
}
.burger{
  width:44px;height:44px;
  border:none;
  background:transparent;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
  cursor:pointer;
  padding:0;
}
.burger span{
  display:block;
  width:22px;height:2px;
  border-radius:2px;
  background:rgba(255,255,255,.86);
  transition:transform var(--t-base) var(--ease),opacity var(--t-fast) var(--ease);
}
.burger.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.burger.is-open span:nth-child(2){opacity:0;}
.burger.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

.drawer-mask{
  position:fixed;
  inset:0;
  background:rgba(10,7,20,.6);
  opacity:0;
  visibility:hidden;
  transition:opacity var(--t-base) var(--ease),visibility var(--t-base) var(--ease);
  z-index:80;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.mobile-drawer{
  position:fixed;
  top:0;right:0;bottom:0;
  width:min(320px,86vw);
  background:var(--ink-900);
  z-index:90;
  transform:translateX(100%);
  transition:transform 300ms var(--ease);
  display:flex;
  flex-direction:column;
  padding:20px 18px 26px;
  overflow-y:auto;
}
.mobile-drawer.is-open{transform:translateX(0);}
.drawer-head{
  display:flex;
  align-items:center;
  gap:10px;
  padding-bottom:18px;
  border-bottom:1px solid var(--line-dark);
  color:#fff;
  font-weight:700;
  font-size:16px;
}
.drawer-links{margin-top:8px;}
.drawer-links a{
  display:block;
  height:52px;
  line-height:52px;
  padding:0 6px;
  color:var(--text-on-dark-2);
  font-size:15px;
  border-bottom:1px solid var(--line-dark);
}
.drawer-links a.active{color:#fff;}
.drawer-links a.active::before{
  content:"";
  display:inline-block;
  width:3px;height:14px;
  border-radius:3px;
  background:var(--grad-brand);
  margin-right:10px;
  vertical-align:-2px;
}
.drawer-cta{
  margin-top:22px;
  display:flex;
  align-items:center;
  justify-content:center;
  height:46px;
  border-radius:var(--r-pill);
  background:var(--grad-brand);
  color:#fff;
  font-weight:700;
  font-size:15px;
}
.drawer-cta:hover{color:#fff;filter:brightness(1.08);}

/* ---------- 通用按钮 / 徽章 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 28px;
  border-radius:var(--r-pill);
  font-size:15px;
  font-weight:700;
  border:1.5px solid transparent;
  cursor:pointer;
  transition:transform var(--t-fast) var(--ease),filter var(--t-fast) var(--ease),background var(--t-fast) var(--ease),box-shadow var(--t-base) var(--ease);
}
.btn-primary{
  background:var(--grad-brand);
  color:#fff;
  box-shadow:var(--sh-3);
}
.btn-primary:hover{color:#fff;filter:brightness(1.08);box-shadow:0 36px 66px -24px rgba(108,75,255,.6);}
.btn-primary:active{transform:scale(.98);}
.btn-ghost{
  background:transparent;
  border-color:var(--line-light);
  color:var(--text-900);
}
.btn-ghost:hover{background:rgba(108,75,255,.10);color:var(--text-900);}
.btn-ghost:active{transform:scale(.98);}
.btn-on-dark{
  background:transparent;
  border-color:rgba(255,255,255,.28);
  color:#fff;
}
.btn-on-dark:hover{background:rgba(255,255,255,.10);color:#fff;}
.btn-text{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  font-weight:600;
  color:var(--brand-1);
}
.btn-text i{transition:transform var(--t-base) var(--ease);}
.btn-text:hover i{transform:translateX(4px);}

.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:26px;
  padding:0 12px;
  border-radius:var(--r-pill);
  font-size:12.5px;
  letter-spacing:.02em;
  border:1px solid rgba(108,75,255,.28);
  background:rgba(108,75,255,.08);
  color:var(--brand-1);
  white-space:nowrap;
}
.badge-cyan{
  border-color:rgba(34,227,192,.4);
  background:rgba(34,227,192,.10);
  color:#0E9C84;
}
.badge-orange{
  border-color:rgba(255,122,61,.4);
  background:rgba(255,122,61,.10);
  color:#C9541F;
}
.badge-dark{
  border-color:rgba(255,255,255,.22);
  background:rgba(255,255,255,.06);
  color:var(--text-on-dark);
}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums;}

/* ---------- 主体偏移 ---------- */
.site-main{margin-left:0;}
.section{padding:48px 0;}
.section-alt{background:var(--paper-1);}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:30px;
}
.section-head h2{font-size:clamp(23px,2.6vw,32px);line-height:1.28;}
.section-head .head-desc{
  margin-top:10px;
  font-size:14.5px;
  color:var(--text-700);
  max-width:720px;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12.5px;
  letter-spacing:.14em;
  color:var(--brand-1);
  text-transform:uppercase;
  margin-bottom:12px;
}
.eyebrow::before{
  content:"";
  width:20px;height:3px;
  border-radius:3px;
  background:var(--grad-brand);
}

/* ---------- 标题带 Hero ---------- */
.page-hero{
  background:var(--paper-1);
  border-bottom:1px solid var(--line-light);
  min-height:120px;
  display:flex;
  align-items:center;
}
.page-hero .hero-inner{
  width:100%;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  padding:26px 0;
}
.page-hero h1{
  font-size:clamp(26px,3.4vw,38px);
  line-height:1.3;
  font-weight:800;
  letter-spacing:-0.02em;
}
.page-hero .hero-sub{
  margin-top:8px;
  font-size:14.5px;
  color:var(--text-700);
}
.crumbs{
  font-size:13px;
  color:var(--text-500);
  display:flex;
  align-items:center;
  gap:8px;
}
.crumbs a{color:var(--text-700);}
.crumbs a:hover{color:var(--brand-1);}
.crumbs .sep{color:var(--text-500);}
.crumbs .current{color:var(--text-500);}

/* ---------- Tab 分段 ---------- */
.tab-row{
  display:flex;
  flex-wrap:nowrap;
  gap:10px;
  overflow-x:auto;
  padding:4px 0 14px;
  margin-bottom:8px;
}
.tab-row::-webkit-scrollbar{height:4px;}
.tab-row::-webkit-scrollbar-thumb{background:var(--line-light);border-radius:4px;}
.tab-pill{
  flex:0 0 auto;
  height:40px;
  padding:0 20px;
  border-radius:var(--r-pill);
  border:1px solid var(--line-light);
  background:var(--paper-0);
  color:var(--text-700);
  font-size:14px;
  font-weight:600;
  cursor:pointer;
  transition:all var(--t-fast) var(--ease);
}
.tab-pill:hover{border-color:rgba(108,75,255,.4);color:var(--brand-1);}
.tab-pill.is-active{
  background:var(--grad-brand);
  border-color:transparent;
  color:#fff;
  box-shadow:var(--sh-3);
}

/* ---------- 横向轨道 ---------- */
.track-wrap{position:relative;}
.track-scroll{
  display:flex;
  gap:20px;
  overflow-x:auto;
  scroll-snap-type:x mandatory;
  padding:6px 4px 22px;
  scroll-behavior:smooth;
}
.track-scroll::-webkit-scrollbar{height:6px;}
.track-scroll::-webkit-scrollbar-thumb{background:var(--line-light);border-radius:6px;}
.track-wrap::after{
  content:"";
  position:absolute;
  top:0;right:0;bottom:22px;
  width:90px;
  background:linear-gradient(to right,rgba(247,245,255,0),var(--paper-1));
  pointer-events:none;
}
.track-card{
  flex:0 0 300px;
  scroll-snap-align:start;
  background:var(--paper-0);
  border:1px solid var(--line-light);
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform var(--t-base) var(--ease),box-shadow var(--t-base) var(--ease);
}
.track-card:hover{transform:translateY(-4px);box-shadow:var(--sh-3);}
.track-card:active{transform:translateY(-1px);}
.track-card .thumb{
  position:relative;
  aspect-ratio:4/3;
  overflow:hidden;
  background:var(--paper-1);
}
.track-card .thumb img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform var(--t-base) var(--ease);
}
.track-card:hover .thumb img{transform:scale(1.04);}
.track-card .thumb .badge{
  position:absolute;
  left:12px;top:12px;
  background:rgba(18,14,31,.76);
  border-color:rgba(255,255,255,.22);
  color:#fff;
  backdrop-filter:blur(4px);
}
.track-card .body{padding:18px 18px 20px;}
.track-card h3{font-size:17px;font-weight:600;line-height:1.4;margin-bottom:8px;}
.track-card .desc{
  font-size:13px;
  color:var(--text-700);
  line-height:1.7;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.track-card .meta{
  margin-top:14px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:12.5px;
  color:var(--text-500);
}
.track-arrows{
  display:none;
  gap:10px;
}
.track-arrow{
  width:42px;height:42px;
  border-radius:50%;
  border:1px solid var(--line-light);
  background:var(--paper-0);
  color:var(--text-700);
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:center;
  transition:all var(--t-fast) var(--ease);
}
.track-arrow:hover{border-color:var(--brand-1);color:var(--brand-1);background:rgba(108,75,255,.08);}
.track-card.is-hidden{display:none;}

/* ---------- 数据条 ---------- */
.stat-bar{
  background:var(--paper-0);
  border:1px solid var(--line-light);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  padding:24px;
}
.stat-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:22px 18px;
}
.stat-item .stat-value{
  font-family:var(--font-num);
  font-size:clamp(26px,3vw,38px);
  font-weight:800;
  line-height:1.1;
  color:var(--text-900);
  font-variant-numeric:tabular-nums;
}
.stat-item .stat-value .unit{
  font-size:12px;
  font-weight:600;
  color:var(--text-500);
  margin-left:4px;
  vertical-align:super;
}
.stat-item .stat-label{
  margin-top:6px;
  font-size:12.5px;
  color:var(--text-500);
  letter-spacing:.02em;
}

/* ---------- 排行表 ---------- */
.rank-table{
  border:1px solid var(--line-light);
  border-radius:var(--r-lg);
  overflow:hidden;
  background:var(--paper-0);
  box-shadow:var(--sh-1);
}
.rank-row{
  display:grid;
  grid-template-columns:64px 1.4fr 1fr 1fr 1fr;
  align-items:center;
  gap:12px;
  padding:16px 20px;
  border-bottom:1px solid var(--line-light);
  font-size:14.5px;
  transition:background var(--t-fast) var(--ease);
}
.rank-row:last-child{border-bottom:none;}
.rank-row.is-head{
  background:var(--paper-1);
  font-size:12.5px;
  color:var(--text-500);
  letter-spacing:.06em;
  font-weight:600;
}
.rank-row:not(.is-head):hover{background:rgba(108,75,255,.04);}
.rank-medal{
  width:32px;height:32px;
  border-radius:50%;
  display:flex;
  align-items:center;
  justify-content:center;
  font-family:var(--font-num);
  font-size:13px;
  font-weight:700;
  color:#fff;
  background:var(--grad-brand);
}
.rank-medal.g2{background:linear-gradient(120deg,#A24BFF,#6C4BFF);}
.rank-medal.g3{background:linear-gradient(120deg,#22E3C0,#6C4BFF);}
.rank-medal.g4{background:linear-gradient(120deg,#8A83A0,#4A4360);}
.rank-name{font-weight:600;color:var(--text-900);}
.rank-cell{color:var(--text-700);font-size:13.5px;}
.rank-cell.num{font-family:var(--font-num);font-variant-numeric:tabular-nums;}

/* ---------- 图文交替 ---------- */
.zig{
  display:grid;
  grid-template-columns:1fr;
  gap:24px;
  align-items:center;
  padding:28px 0;
  border-bottom:1px solid rgba(232,228,245,.75);
}
.zig:last-child{border-bottom:none;padding-bottom:0;}
.zig-media{
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--line-light);
  box-shadow:var(--sh-1);
  aspect-ratio:16/10;
}
.zig-media img{width:100%;height:100%;object-fit:cover;transition:transform 400ms var(--ease);}
.zig-media:hover img{transform:scale(1.03);}
.zig-body .zig-index{
  font-family:var(--font-num);
  font-size:13px;
  font-weight:700;
  letter-spacing:.16em;
  color:var(--brand-1);
  display:block;
  margin-bottom:10px;
}
.zig-body h3{font-size:clamp(18px,1.6vw,21px);line-height:1.4;margin-bottom:12px;}
.zig-body p{font-size:15px;color:var(--text-700);line-height:1.8;}
.point-list{margin-top:16px;}
.point-list li{
  position:relative;
  padding-left:18px;
  font-size:14.5px;
  color:var(--text-700);
  line-height:1.9;
}
.point-list li::before{
  content:"";
  position:absolute;
  left:0;top:12px;
  width:6px;height:6px;
  border-radius:50%;
  background:var(--accent-1);
}

/* ---------- 时间线 ---------- */
.timeline-block{
  background:var(--ink-800);
  border-radius:var(--r-xl);
  padding:32px 22px;
  color:var(--text-on-dark);
}
.timeline-head{
  display:flex;
  flex-wrap:wrap;
  align-items:baseline;
  justify-content:space-between;
  gap:10px;
  margin-bottom:28px;
}
.timeline-head h2{color:#fff;font-size:clamp(21px,2.4vw,28px);}
.timeline-head .status{font-size:13px;color:var(--text-on-dark-2);}
.timeline-nodes{
  display:grid;
  grid-template-columns:1fr;
  gap:18px;
}
.tl-node{
  position:relative;
  padding-left:28px;
}
.tl-node::before{
  content:"";
  position:absolute;
  left:0;top:6px;
  width:14px;height:14px;
  border-radius:50%;
  background:rgba(255,255,255,.22);
}
.tl-node.done::before{background:var(--grad-brand);}
.tl-node.current::before{
  background:var(--grad-brand);
  box-shadow:0 0 0 0 rgba(108,75,255,.5);
  animation:pulse 2s infinite;
}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(108,75,255,.5);}
  70%{box-shadow:0 0 0 12px rgba(108,75,255,0);}
  100%{box-shadow:0 0 0 0 rgba(108,75,255,0);}
}
.tl-node .tl-title{font-size:15px;font-weight:600;color:#fff;}
.tl-node .tl-desc{font-size:12.5px;color:var(--text-on-dark-2);margin-top:4px;}
.progress-track{
  margin-top:30px;
  height:8px;
  border-radius:var(--r-pill);
  background:rgba(255,255,255,.10);
  overflow:hidden;
}
.progress-fill{
  height:100%;
  width:0;
  border-radius:var(--r-pill);
  background:var(--grad-brand);
  transition:width 1.2s var(--ease);
}
.progress-meta{
  margin-top:12px;
  display:flex;
  justify-content:space-between;
  font-size:12.5px;
  color:var(--text-on-dark-2);
}

/* ---------- FAQ ---------- */
.accordion{
  background:transparent;
  border:none;
  margin:0;
}
.accordion-item{
  border:1px solid var(--line-light);
  border-radius:var(--r-md);
  background:var(--paper-0);
  margin-bottom:12px;
  overflow:hidden;
  box-shadow:var(--sh-1);
}
.accordion-item:last-child{margin-bottom:0;}
.accordion-title{
  display:block;
  padding:0 54px 0 22px;
  height:56px;
  line-height:56px;
  font-size:15px;
  font-weight:600;
  color:var(--text-900);
  border:none;
  background:transparent;
  position:relative;
  transition:color var(--t-fast) var(--ease);
}
.accordion-title:hover{color:var(--brand-1);background:rgba(108,75,255,.03);}
.accordion-title::before{
  content:"\f078";
  font-family:"Font Awesome 6 Free";
  font-weight:900;
  font-size:13px;
  position:absolute;
  right:22px;
  top:50%;
  left:auto;
  width:auto;
  height:auto;
  margin:0;
  transform:translateY(-50%);
  color:var(--text-500);
  transition:transform var(--t-base) var(--ease),color var(--t-fast) var(--ease);
}
.accordion-item.is-active > .accordion-title{color:var(--brand-1);}
.accordion-item.is-active > .accordion-title::before{
  transform:translateY(-50%) rotate(180deg);
  color:var(--brand-1);
}
.accordion-item.is-active > .accordion-title::after{
  content:"";
  position:absolute;
  left:0;top:14px;bottom:14px;
  width:3px;
  border-radius:3px;
  background:var(--grad-brand);
}
.accordion-content{
  display:none;
  padding:0 22px 20px;
  border:none;
  background:transparent;
  font-size:15px;
  line-height:1.8;
  color:var(--text-700);
}
.accordion-content p{margin-bottom:10px;}
.accordion-content p:last-child{margin-bottom:0;}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;
  background:var(--ink-900);
  min-height:220px;
  display:flex;
  align-items:center;
  overflow:hidden;
}
.cta-band::before{
  content:"";
  position:absolute;
  right:-80px;top:-120px;
  width:480px;height:480px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(108,75,255,.30) 0%,rgba(108,75,255,0) 70%);
  pointer-events:none;
}
.cta-inner{
  position:relative;
  width:100%;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:22px;
  padding:44px 0;
}
.cta-inner h2{color:#fff;font-size:clamp(22px,2.4vw,30px);line-height:1.3;}
.cta-inner p{margin-top:10px;font-size:14px;color:var(--text-on-dark-2);}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--ink-900);
  color:var(--text-on-dark-2);
  padding:56px 0 26px;
  position:relative;
}
.site-footer::before{
  content:"";
  position:absolute;
  top:0;left:18px;
  width:96px;height:3px;
  border-radius:3px;
  background:var(--grad-brand);
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:12px;
  margin-bottom:14px;
}
.footer-brand b{color:#fff;font-size:16px;}
.site-footer p{font-size:13px;line-height:1.8;color:var(--text-on-dark-2);}
.footer-col h4{
  color:#fff;
  font-size:14px;
  font-weight:600;
  margin-bottom:14px;
  letter-spacing:.02em;
}
.footer-links li{line-height:34px;}
.footer-links a{
  display:inline-block;
  position:relative;
  font-size:13.5px;
  color:var(--text-on-dark-2);
  transition:color var(--t-fast) var(--ease),padding-left var(--t-fast) var(--ease);
}
.footer-links a::before{
  content:"";
  position:absolute;
  left:0;top:50%;
  transform:translateY(-50%);
  width:2px;height:0;
  border-radius:2px;
  background:var(--grad-brand);
  transition:height var(--t-fast) var(--ease);
}
.footer-links a:hover{color:#fff;padding-left:10px;}
.footer-links a:hover::before{height:14px;}
.footer-bottom{
  margin-top:36px;
  padding-top:18px;
  border-top:1px solid var(--line-dark);
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:8px;
  font-size:12px;
  color:rgba(255,255,255,.5);
}

/* ---------- 响应式 ---------- */
@media (min-width:640px){
  .stat-grid{grid-template-columns:repeat(4,1fr);}
  .timeline-nodes{grid-template-columns:repeat(2,1fr);gap:26px 24px;}
  .rank-row{grid-template-columns:70px 1.4fr 1fr 1fr 1fr;}
}
@media (min-width:768px){
  .section{padding:64px 0;}
  .zig{grid-template-columns:1fr 1fr;gap:40px;}
  .zig.reverse .zig-media{order:2;}
  .zig.reverse .zig-body{order:1;}
  .timeline-block{padding:40px 36px;}
  .timeline-nodes{grid-template-columns:repeat(4,1fr);}
  .tl-node{padding-left:0;padding-top:30px;}
  .tl-node::before{left:0;top:0;}
}
@media (min-width:1024px){
  body{padding-top:0;}
  .mobile-bar,.mobile-drawer,.drawer-mask{display:none;}
  .side-nav{display:flex;}
  .site-main{margin-left:var(--nav-w);}
  .container{padding-left:40px;padding-right:40px;}
  .section{padding:88px 0;}
  .track-arrows{display:flex;}
  .track-card{flex:0 0 320px;}
}
@media (min-width:1280px){
  .container{padding-left:40px;padding-right:40px;}
}
@media (max-width:519px){
  .cta-actions{width:100%;flex-direction:column;}
  .cta-actions .btn{width:100%;}
  .rank-row{
    grid-template-columns:48px 1fr;
    grid-template-areas:"medal name" "medal cells";
    row-gap:6px;
  }
  .rank-row.is-head{display:none;}
  .rank-medal{grid-area:medal;align-self:start;}
  .rank-name{grid-area:name;}
  .rank-cell{grid-area:cells;}
  .rank-cell + .rank-cell{margin-top:2px;}
}