/* roulang page: index */
:root{
  --ink:#111417;
  --ink-2:#1B1F23;
  --lime:#C9F24D;
  --lime-deep:#B6DE38;
  --paper:#F7F6F2;
  --white:#FFFFFF;
  --line:#E6E5E0;
  --muted:#6B7075;
  --muted-2:#8C9196;
  --radius-s:8px;
  --radius-m:16px;
  --radius-l:24px;
  --radius-p:999px;
  --shadow-1:0 1px 2px rgba(17,20,23,.05), 0 10px 30px -12px rgba(17,20,23,.12);
  --shadow-2:0 2px 4px rgba(17,20,23,.06), 0 18px 44px -16px rgba(17,20,23,.20);
  --sp-1:4px; --sp-2:8px; --sp-3:16px; --sp-4:24px; --sp-5:32px; --sp-6:48px; --sp-7:64px; --sp-8:96px; --sp-9:120px;
  --ease:cubic-bezier(.22,1,.36,1);
  --font:"Noto Sans SC","PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.9;
  font-weight:400;
  color:var(--ink);
  background:var(--paper);
  padding-top:0;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4,p,ul,ol,dl,dd,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--ink);}
button{font-family:inherit;font-size:inherit;border:0;background:none;cursor:pointer;color:inherit;}
input,textarea,select{font-family:inherit;font-size:inherit;}
::selection{background:var(--lime);color:var(--ink);}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:640px){.container{padding:0 32px;}}
@media (min-width:1024px){.container{padding:0 40px;max-width:1240px;}}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--ink);color:#EDEDEA;font-size:13px;letter-spacing:.02em;}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:36px;}
.topbar-domain{font-weight:600;letter-spacing:.08em;color:#FFFFFF;}
.topbar-note{color:#B9BDBF;display:none;}
.topbar-link{display:inline-flex;align-items:center;gap:6px;color:var(--lime);font-weight:600;}
.topbar-link:hover{color:#FFFFFF;}
.topbar-link .arw{transition:transform .2s var(--ease);}
.topbar-link:hover .arw{transform:translateX(4px);}
@media (min-width:640px){.topbar-note{display:inline;}}

/* ---------- 主导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(247,246,242,.96);border-bottom:1px solid var(--line);backdrop-filter:none;transition:box-shadow .25s var(--ease);}
.site-header.is-scrolled{box-shadow:0 6px 24px -18px rgba(17,20,23,.55);}
.nav{display:flex;align-items:center;justify-content:space-between;gap:24px;height:70px;}
.brand{display:flex;flex-direction:column;line-height:1.15;letter-spacing:-.01em;}
.brand-main{font-size:19px;font-weight:900;}
.brand-sub{font-size:12px;color:var(--muted);letter-spacing:.24em;font-weight:600;}
.brand:hover .brand-main{color:var(--ink);}
.nav-links{display:none;align-items:center;gap:8px;}
.nav-link{position:relative;display:inline-block;padding:10px 14px;font-size:15px;font-weight:600;color:#3C4145;border-radius:var(--radius-p);}
.nav-link::after{content:"";position:absolute;left:14px;right:14px;bottom:4px;height:3px;background:var(--lime);border-radius:var(--radius-p);transform:scaleX(0);transform-origin:left center;transition:transform .25s var(--ease);}
.nav-link:hover{color:var(--ink);}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1);}
.nav-link.active{color:var(--ink);}
.nav-actions{display:flex;align-items:center;gap:10px;}
.nav-toggle{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--radius-m);background:var(--white);}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);position:relative;transition:background .2s;}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);transition:transform .25s var(--ease),top .25s var(--ease);}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-toggle[aria-expanded="true"] span{background:transparent;}
.nav-toggle[aria-expanded="true"] span::before{top:0;transform:rotate(45deg);}
.nav-toggle[aria-expanded="true"] span::after{top:0;transform:rotate(-45deg);}
@media (min-width:1024px){
  .nav-links{display:flex;}
  .nav-toggle{display:none;}
}
.drawer{display:none;background:var(--ink);color:#E9E9E5;border-bottom:1px solid #262B30;}
.drawer.open{display:block;}
.drawer-inner{padding:16px 20px 28px;}
.drawer a{display:block;padding:14px 4px;border-bottom:1px solid #262B30;font-size:16px;font-weight:600;color:#E9E9E5;}
.drawer a:hover{color:var(--lime);}
.drawer a.is-active{color:var(--lime);}
.drawer .drawer-btn{margin-top:20px;display:inline-flex;padding:12px 22px;border-radius:var(--radius-p);background:var(--lime);color:var(--ink);font-weight:700;border-bottom:0;}
@media (min-width:1024px){.drawer{display:none !important;}}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 22px;border-radius:var(--radius-p);font-size:15px;font-weight:600;line-height:1.4;transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);border:1px solid transparent;}
.btn .arw{transition:transform .2s var(--ease);}
.btn:hover .arw{transform:translateX(4px);}
.btn-primary{background:var(--lime);color:var(--ink);}
.btn-primary:hover{background:var(--lime-deep);color:var(--ink);box-shadow:0 10px 24px -12px rgba(150,192,40,.9);}
.btn-dark{background:var(--ink);color:var(--lime);}
.btn-dark:hover{background:#000;color:var(--lime);}
.btn-ghost{background:transparent;color:var(--ink);border-color:rgba(17,20,23,.22);}
.btn-ghost:hover{border-color:var(--ink);background:rgba(17,20,23,.04);}
.btn-outline-light{background:transparent;color:#FFFFFF;border-color:rgba(255,255,255,.35);}
.btn-outline-light:hover{border-color:var(--lime);color:var(--lime);}
.btn-lg{padding:15px 30px;font-size:16px;}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;}

/* ---------- 通用板块 ---------- */
.section{padding:56px 0;}
@media (min-width:1024px){.section{padding:100px 0;}}
.section-tight{padding:48px 0;}
@media (min-width:1024px){.section-tight{padding:72px 0;}}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);}
.eyebrow::before{content:"";width:22px;height:3px;background:var(--lime);border-radius:var(--radius-p);}
.h2{font-size:clamp(24px,3.2vw,36px);font-weight:900;letter-spacing:-.02em;line-height:1.15;margin-top:14px;}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head p{margin-top:14px;color:var(--muted);font-size:16px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-head.center .eyebrow{justify-content:center;}
.divider{height:1px;background:var(--line);border:0;}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:40px 0 64px;background:var(--paper);}
.hero::before{content:"";position:absolute;inset:0;background-image:url('/assets/images/backpic/back-2.png');background-size:cover;background-position:center;opacity:.09;filter:grayscale(1);pointer-events:none;}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(247,246,242,.4),rgba(247,246,242,.98));pointer-events:none;}
.hero .container{position:relative;z-index:2;}
.hero-grid{display:grid;grid-template-columns:1fr;gap:48px;align-items:center;}
@media (min-width:1024px){
  .hero{padding:72px 0 96px;}
  .hero-grid{grid-template-columns:7fr 5fr;gap:56px;}
}
.hero h1{font-size:clamp(30px,5vw,54px);font-weight:900;letter-spacing:-.02em;line-height:1.12;margin-top:18px;}
.hero h1 .mark{position:relative;white-space:nowrap;}
.hero h1 .mark::after{content:"";position:absolute;left:0;right:0;bottom:6px;height:10px;background:var(--lime);opacity:.55;z-index:-1;border-radius:2px;}
.hero-lead{margin-top:20px;font-size:17px;color:#3C4145;max-width:520px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px;}
.trust-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:44px;padding-top:28px;border-top:1px solid var(--line);}
.trust-num{font-size:clamp(28px,4vw,44px);font-weight:900;letter-spacing:-.03em;line-height:1;}
.trust-num small{font-size:15px;font-weight:700;margin-left:2px;}
.trust-label{margin-top:8px;font-size:13px;color:var(--muted);}
.shot-stack{position:relative;min-height:380px;}
.shot-back{position:absolute;inset:6% 4% 8% 8%;border-radius:var(--radius-l);background-image:url('/assets/images/backpic/back-1.png');background-size:cover;background-position:center;opacity:.35;filter:grayscale(.4);}
.shot-main{position:relative;width:62%;aspect-ratio:9/16;border-radius:var(--radius-l);overflow:hidden;box-shadow:var(--shadow-2);background:var(--white);z-index:3;transition:transform .5s var(--ease);}
.shot-main img{width:100%;height:100%;object-fit:cover;}
.shot-side{position:absolute;right:0;bottom:-6%;width:52%;aspect-ratio:9/16;border-radius:var(--radius-l);overflow:hidden;box-shadow:var(--shadow-2);background:var(--white);z-index:4;transition:transform .5s var(--ease);}
.shot-side img{width:100%;height:100%;object-fit:cover;}
.shot-stack:hover .shot-main{transform:translate(-6px,-8px);}
.shot-stack:hover .shot-side{transform:translate(6px,4px);}
.shot-tag{position:absolute;left:-4%;top:14%;z-index:5;background:var(--ink);color:var(--lime);font-size:12px;font-weight:700;letter-spacing:.08em;padding:8px 14px;border-radius:var(--radius-p);}

/* ---------- 价值编号列表 ---------- */
.value-list{border-top:1px solid var(--line);}
.value-item{display:grid;grid-template-columns:64px 1fr;gap:16px;padding:28px 0;border-bottom:1px solid var(--line);transition:padding .3s var(--ease);}
@media (min-width:768px){.value-item{grid-template-columns:110px 1fr;gap:32px;padding:36px 0;}}
.value-num{position:relative;font-size:26px;font-weight:900;letter-spacing:-.03em;color:var(--ink);transition:transform .3s var(--ease);}
@media (min-width:768px){.value-num{font-size:40px;}}
.value-num::after{content:"";position:absolute;left:-14px;top:6px;bottom:6px;width:3px;background:var(--lime);border-radius:var(--radius-p);transform:scaleY(.4);transform-origin:top center;transition:transform .35s var(--ease);}
.value-item:hover .value-num{transform:translateX(-6px);}
.value-item:hover .value-num::after{transform:scaleY(1.25);}
.value-title{font-size:20px;font-weight:800;letter-spacing:-.01em;}
.value-text{margin-top:8px;color:var(--muted);font-size:15.5px;max-width:760px;}
.value-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}

/* ---------- 徽章 / 标签 ---------- */
.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:var(--radius-p);font-size:12px;font-weight:700;letter-spacing:.04em;background:rgba(201,242,77,.35);color:#3F4A16;border:1px solid rgba(150,192,40,.35);}
.badge-neutral{background:var(--white);border:1px solid var(--line);color:var(--muted);}

/* ---------- 截图轮播 ---------- */
.track-wrap{position:relative;}
.shots-track{display:flex;gap:16px;overflow-x:auto;scroll-snap-type:x mandatory;padding:8px 4px 22px;scrollbar-width:none;}
.shots-track::-webkit-scrollbar{display:none;}
.shot-card{flex:0 0 78%;scroll-snap-align:start;background:var(--white);border:1px solid var(--line);border-radius:var(--radius-l);padding:14px;box-shadow:var(--shadow-1);transition:transform .3s var(--ease),box-shadow .3s var(--ease);}
.shot-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.shot-frame{aspect-ratio:9/16;border-radius:var(--radius-m);overflow:hidden;background:var(--paper);}
.shot-frame img{width:100%;height:100%;object-fit:cover;}
.shot-caption{padding:14px 6px 6px;}
.shot-caption h3{font-size:17px;font-weight:800;}
.shot-caption p{margin-top:6px;font-size:14px;color:var(--muted);}
@media (min-width:640px){.shot-card{flex:0 0 calc((100% - 16px)/2);}}
@media (min-width:1024px){.shot-card{flex:0 0 calc((100% - 32px)/3);}}
.track-nav{display:flex;align-items:center;gap:12px;justify-content:space-between;margin-top:8px;}
.track-arrows{display:flex;gap:10px;}
.arrow-btn{width:46px;height:46px;border-radius:50%;border:1px solid rgba(17,20,23,.2);background:transparent;display:inline-flex;align-items:center;justify-content:center;font-size:18px;transition:background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);}
.arrow-btn:hover{background:var(--ink);border-color:var(--ink);color:var(--lime);}
.dots{display:flex;gap:8px;}
.dot{width:9px;height:9px;border-radius:50%;background:rgba(17,20,23,.18);transition:background .2s var(--ease),transform .2s var(--ease);}
.dot.active{background:var(--lime);transform:scale(1.25);}

/* ---------- 系统要求 ---------- */
.req-grid{display:grid;grid-template-columns:1fr;gap:20px 56px;}
@media (min-width:1024px){.req-grid{grid-template-columns:1fr 1fr;}}
.req-list{border-top:1px solid var(--line);}
.req-row{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:48px;padding:10px 2px;border-bottom:1px solid var(--line);}
.req-label{color:var(--muted);font-size:15px;}
.req-value{font-weight:600;font-size:15px;text-align:right;}
.chip{display:inline-flex;align-items:center;gap:6px;padding:3px 12px;border-radius:var(--radius-p);border:1px solid var(--line);background:var(--white);font-size:12.5px;font-weight:700;color:#3C4145;}
.chip i{width:7px;height:7px;border-radius:50%;background:var(--lime);display:inline-block;}
.platform-strip{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}

/* ---------- 评价墙 ---------- */
.reviews{display:grid;grid-template-columns:1fr;gap:20px;}
@media (min-width:640px){.reviews{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (min-width:1024px){.reviews{grid-template-columns:repeat(3,minmax(0,1fr));align-items:start;}}
.review-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius-m);padding:24px;box-shadow:var(--shadow-1);transition:transform .3s var(--ease),box-shadow .3s var(--ease);}
.review-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
@media (min-width:1024px){.review-card.offset{margin-top:32px;}}
.stars{color:#D9A614;font-size:14px;letter-spacing:.18em;}
.review-text{margin-top:12px;font-size:15px;color:#2C3135;}
.review-user{display:flex;align-items:center;gap:12px;margin-top:18px;padding-top:16px;border-top:1px solid var(--line);}
.avatar{width:40px;height:40px;border-radius:50%;background:var(--ink);color:var(--lime);display:inline-flex;align-items:center;justify-content:center;font-weight:800;font-size:14px;flex:0 0 40px;}
.review-name{font-weight:700;font-size:14.5px;}
.review-meta{font-size:12.5px;color:var(--muted);}

/* ---------- 深色下载区块 ---------- */
.download-block{background:var(--ink);color:#EDEDEA;border:1px solid #23282D;border-radius:var(--radius-l);padding:36px 24px;}
@media (min-width:1024px){.download-block{padding:56px 56px;}}
.download-grid{display:grid;grid-template-columns:1fr;gap:36px;align-items:center;}
@media (min-width:1024px){.download-grid{grid-template-columns:1fr auto;gap:56px;}}
.download-block h2{font-size:clamp(24px,3.2vw,36px);font-weight:900;letter-spacing:-.02em;line-height:1.2;color:#FFFFFF;}
.download-block p{margin-top:16px;color:#ACB1B4;font-size:15.5px;max-width:620px;}
.download-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.safety-note{margin-top:18px;font-size:13px;color:#8C9196;display:flex;align-items:center;gap:8px;}
.safety-note i{width:6px;height:6px;border-radius:50%;background:var(--lime);display:inline-block;}
.qr-box{display:flex;flex-direction:column;align-items:center;gap:12px;}
.qr{width:120px;height:120px;border-radius:var(--radius-m);background:#FFFFFF;position:relative;overflow:hidden;}
.qr::before{content:"";position:absolute;inset:10px;background-image:repeating-linear-gradient(90deg,#111417 0 7px,transparent 7px 14px),repeating-linear-gradient(0deg,#111417 0 7px,transparent 7px 14px);background-blend-mode:multiply;opacity:.9;}
.qr::after{content:"";position:absolute;left:50%;top:50%;width:30px;height:30px;transform:translate(-50%,-50%);background:var(--lime);border:4px solid #FFFFFF;border-radius:6px;}
.qr-label{font-size:12.5px;color:#ACB1B4;letter-spacing:.08em;}

/* ---------- 最新信息 CMS ---------- */
.news-grid{display:grid;grid-template-columns:1fr;gap:24px;}
@media (min-width:640px){.news-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (min-width:1024px){.news-grid{grid-template-columns:repeat(3,minmax(0,1fr));}}
.news-card{display:flex;flex-direction:column;background:var(--white);border:1px solid var(--line);border-radius:var(--radius-m);overflow:hidden;box-shadow:var(--shadow-1);transition:transform .3s var(--ease),box-shadow .3s var(--ease);}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.news-thumb{aspect-ratio:16/10;overflow:hidden;background:var(--paper);}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.news-card:hover .news-thumb img{transform:scale(1.04);}
.news-body{padding:20px 20px 18px;display:flex;flex-direction:column;flex:1;}
.news-title{font-size:17.5px;font-weight:800;line-height:1.45;letter-spacing:-.01em;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-top:10px;}
.news-excerpt{margin-top:10px;font-size:14.5px;color:var(--muted);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:16px;border-top:1px solid var(--line);font-size:13px;color:var(--muted);}
.news-more{display:inline-flex;align-items:center;gap:6px;font-weight:700;color:var(--ink);}
.news-more .arw{transition:transform .2s var(--ease);}
.news-card:hover .news-more .arw{transform:translateX(4px);}
.empty-state{min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;text-align:center;border:1px dashed var(--line);border-radius:var(--radius-l);background:var(--white);padding:32px;grid-column:1/-1;}
.empty-state p{color:var(--muted);}

/* ---------- FAQ ---------- */
.faq{max-width:860px;margin:0 auto;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:16px;text-align:left;min-height:60px;padding:14px 4px 14px 0;font-size:16.5px;font-weight:700;position:relative;transition:padding .25s var(--ease);}
.faq-q::before{content:"";position:absolute;left:-18px;top:14px;bottom:14px;width:4px;background:var(--lime);border-radius:var(--radius-p);transform:scaleY(0);transform-origin:center;transition:transform .3s var(--ease);}
.faq-item.open .faq-q::before{transform:scaleY(1);}
.faq-item.open .faq-q{padding-left:8px;}
.faq-icon{flex:0 0 26px;width:26px;height:26px;border-radius:50%;border:1px solid rgba(17,20,23,.18);display:inline-flex;align-items:center;justify-content:center;font-size:16px;line-height:1;transition:background .2s var(--ease),color .2s var(--ease),transform .3s var(--ease);}
.faq-item.open .faq-icon{background:var(--lime);border-color:var(--lime);color:var(--ink);transform:rotate(180deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s var(--ease),opacity .3s var(--ease);opacity:0;}
.faq-item.open .faq-a{opacity:1;}
.faq-a-inner{padding:0 40px 22px 8px;color:var(--muted);font-size:15.5px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:#C6CACD;padding:56px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1fr;gap:36px;padding-bottom:44px;}
@media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:48px;}}
.footer-brand{font-size:19px;font-weight:900;color:#FFFFFF;line-height:1.3;}
.footer-brand span{display:block;font-size:12px;letter-spacing:.24em;color:#8C9196;font-weight:600;margin-top:4px;}
.footer-desc{margin-top:16px;font-size:14.5px;color:#8C9196;max-width:360px;}
.footer-title{font-size:13px;font-weight:800;letter-spacing:.16em;color:#FFFFFF;text-transform:uppercase;}
.footer-list{margin-top:18px;display:flex;flex-direction:column;gap:10px;}
.footer-list a{font-size:14.5px;color:#C6CACD;}
.footer-list a:hover{color:var(--lime);}
.footer-list li{font-size:14.5px;color:#8C9196;}
.footer-bottom{border-top:1px solid #262B30;padding:20px 0 28px;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13px;color:#7D8286;}
.footer-bottom a:hover{color:var(--lime);}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .6s var(--ease),transform .6s var(--ease);}
.reveal.in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;transition:none;}
  *{transition-duration:.01ms !important;animation-duration:.01ms !important;}
}

/* ---------- Foundation 覆盖 ---------- */
body,button,input,select,textarea{font-family:var(--font);}
.button,.button.primary,.button.secondary{background:var(--lime);color:var(--ink);border-radius:var(--radius-p);font-weight:600;}
.row{margin-left:auto;margin-right:auto;}
[type="button"],[type="submit"]{border-radius:var(--radius-p);}

/* roulang page: article */
:root{
  --ink:#111417;
  --ink-2:#1b2026;
  --lime:#C9F24D;
  --paper:#F7F6F2;
  --white:#FFFFFF;
  --line:#E6E5E0;
  --muted:#6B7075;
  --body-text:#20242a;
  --r-s:8px;
  --r-m:16px;
  --r-l:24px;
  --shadow-1:0 1px 2px rgba(17,20,23,.05), 0 10px 30px -12px rgba(17,20,23,.12);
  --shadow-2:0 2px 6px rgba(17,20,23,.08), 0 18px 42px -14px rgba(17,20,23,.22);
  --ease:cubic-bezier(.22,1,.36,1);
}
*,*::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:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.9;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-m)}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--ink)}
a:focus-visible,button:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:6px}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
h1,h2,h3,h4{font-weight:900;letter-spacing:-.02em;line-height:1.15;margin:0}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:640px){.container{padding:0 32px}}
@media (min-width:1024px){.container{padding:0 40px}}

/* 顶部信息条 */
.topbar{background:var(--ink);color:#fff;font-size:13px}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:34px}
.topbar-domain{font-weight:700;letter-spacing:.08em}
.topbar-note{color:rgba(255,255,255,.62)}
.topbar-link{color:var(--lime);font-weight:600;display:inline-flex;align-items:center;gap:6px;white-space:nowrap}
.topbar-link:hover{color:#fff}
@media (max-width:639px){.topbar-note{display:none}}

/* 主导航 */
.site-header{position:sticky;top:0;z-index:80;background:var(--paper);border-bottom:1px solid var(--line);transition:box-shadow .25s var(--ease)}
.site-header.is-scrolled{box-shadow:0 8px 26px -18px rgba(17,20,23,.45)}
.nav{display:flex;align-items:center;gap:20px;height:68px}
.brand{display:flex;flex-direction:column;line-height:1.1;flex:none}
.brand-main{font-size:19px;font-weight:900;letter-spacing:-.02em}
.brand-sub{font-size:11px;letter-spacing:.18em;color:var(--muted);font-weight:600;margin-top:2px}
.brand:hover .brand-sub{color:var(--ink)}
.nav-links{display:none}
.nav-link{position:relative;padding:8px 12px;font-size:15px;font-weight:600;color:var(--muted)}
.nav-link::after{content:"";position:absolute;left:12px;right:12px;bottom:0;height:3px;border-radius:999px;background:var(--lime);transform:scaleX(0);transform-origin:left;transition:transform .25s var(--ease)}
.nav-link:hover{color:var(--ink)}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1)}
.nav-link.active{color:var(--ink)}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
@media (min-width:1024px){
  .nav-links{display:flex;align-items:center;gap:6px;margin-left:28px}
  .nav-actions{margin-left:auto}
}
.nav-toggle{display:inline-flex;align-items:center;justify-content:center;width:42px;height:42px;border:1px solid var(--line);border-radius:12px;background:var(--white)}
.nav-toggle span{position:relative;display:block;width:16px;height:2px;background:var(--ink);border-radius:2px}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:16px;height:2px;background:var(--ink);border-radius:2px;transition:transform .2s var(--ease)}
.nav-toggle span::before{top:-5px}
.nav-toggle span::after{top:5px}
@media (min-width:1024px){.nav-toggle{display:none}}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:999px;font-weight:600;font-size:15px;padding:11px 22px;white-space:nowrap;transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease)}
.btn i{font-size:12px;transition:transform .2s var(--ease)}
.btn:hover i{transform:translateX(4px)}
.btn-primary{background:var(--ink);color:var(--lime)}
.btn-primary:hover{background:#000;color:var(--lime);transform:translateY(-2px);box-shadow:0 14px 28px -16px rgba(17,20,23,.7)}
.btn-lime{background:var(--lime);color:var(--ink)}
.btn-lime:hover{background:#b9e33c;color:var(--ink);transform:translateY(-2px)}
.btn-ghost{background:transparent;color:var(--ink);border:1px solid var(--ink)}
.btn-ghost:hover{background:var(--ink);color:var(--lime)}
.btn-ghost-light{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.5)}
.btn-ghost-light:hover{background:#fff;color:var(--ink);border-color:#fff}
.btn-sm{padding:9px 18px;font-size:14px}

/* 移动抽屉 */
.drawer{display:none}
.drawer.open{display:block;background:var(--ink);border-top:1px solid rgba(255,255,255,.08)}
.drawer-inner{display:flex;flex-direction:column;padding-top:6px;padding-bottom:20px}
.drawer-inner a{color:#fff;font-weight:600;font-size:15px;padding:14px 0;border-bottom:1px solid rgba(255,255,255,.08)}
.drawer-inner a:hover,.drawer-inner a.is-active{color:var(--lime)}
.drawer-btn{margin-top:18px;background:var(--lime);color:var(--ink)!important;border-radius:999px;text-align:center;border-bottom:0!important;padding:13px 0!important}
@media (min-width:1024px){.drawer{display:none!important}}

/* 通用小标记 */
.section-eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.section-eyebrow::before{content:"";width:22px;height:3px;border-radius:999px;background:var(--lime)}
.badge{display:inline-flex;align-items:center;padding:4px 12px;border-radius:999px;background:rgba(201,242,77,.4);color:#3b4712;font-size:12px;font-weight:700;letter-spacing:.04em}
.badge-outline{background:transparent;border:1px solid var(--line);color:var(--muted)}

/* 文章头部 */
.article-hero{position:relative;padding:56px 0 44px;overflow:hidden}
.article-hero::before{content:"";position:absolute;inset:0;background-image:url("/assets/images/backpic/back-1.png");background-size:cover;background-position:center;opacity:.07;pointer-events:none}
.article-hero>.container{position:relative;z-index:1}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--muted);margin-bottom:26px}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--ink)}
.breadcrumb i{font-size:10px;opacity:.55}
.breadcrumb .crumb-current{color:var(--ink);font-weight:600}
.article-title{font-size:clamp(28px,4.4vw,48px);line-height:1.18;letter-spacing:-.025em;margin:18px 0 22px;max-width:900px}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px 22px;font-size:13.5px;color:var(--muted)}
.article-meta span{display:inline-flex;align-items:center;gap:8px}
.article-meta i{color:var(--ink);font-size:12px}
.article-meta .mid-dot{width:1px;height:14px;background:var(--line);display:none}
@media (min-width:768px){.article-meta .mid-dot{display:block}}

/* 正文 */
.article-main{padding:48px 0 0}
.article-shell{max-width:820px;margin:0 auto}
.article-content{font-size:17px;line-height:1.95;color:var(--body-text);word-break:break-word}
.article-content p{margin:0 0 1.2em}
.article-content h2{font-size:clamp(21px,2.6vw,27px);margin:1.9em 0 .8em;padding-left:14px;border-left:4px solid var(--lime);letter-spacing:-.02em}
.article-content h3{font-size:19px;margin:1.6em 0 .6em;font-weight:800}
.article-content h4{font-size:17px;margin:1.4em 0 .5em;font-weight:800}
.article-content ul,.article-content ol{margin:0 0 1.3em;padding-left:1.3em}
.article-content ul li{list-style:disc;margin-bottom:.5em}
.article-content ol li{list-style:decimal;margin-bottom:.5em}
.article-content blockquote{margin:1.6em 0;padding:18px 22px;background:var(--white);border-left:4px solid var(--lime);border-radius:0 var(--r-m) var(--r-m) 0;color:#2b3036}
.article-content img{margin:1.6em 0;border-radius:var(--r-m);height:auto}
.article-content figure{margin:1.6em 0}
.article-content figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:10px}
.article-content a{color:var(--ink);border-bottom:2px solid var(--lime)}
.article-content a:hover{color:#000}
.article-content table{width:100%;display:block;overflow-x:auto;border-collapse:collapse;margin:1.6em 0;font-size:15px;-webkit-overflow-scrolling:touch}
.article-content th,.article-content td{padding:12px 14px;border:1px solid var(--line);white-space:nowrap;text-align:left}
.article-content th{background:#F1F0EA;font-weight:700}
.article-content hr{border:0;border-top:1px solid var(--line);margin:2.4em 0}
.article-content code{background:#F1F0EA;padding:2px 6px;border-radius:6px;font-size:14.5px}

.article-empty{background:var(--white);border:1px solid var(--line);border-radius:var(--r-l);padding:56px 28px;text-align:center;box-shadow:var(--shadow-1)}
.article-empty h2{font-size:clamp(20px,2.6vw,26px);margin-bottom:14px}
.article-empty p{color:var(--muted);font-size:15px;max-width:520px;margin:0 auto 24px}

/* 标签行 */
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:48px;padding-top:26px;border-top:1px solid var(--line)}
.tag-row .tag-label{font-size:13px;color:var(--muted);font-weight:600;letter-spacing:.06em}
.tag{display:inline-flex;align-items:center;padding:6px 14px;border-radius:999px;border:1px solid var(--line);background:var(--white);font-size:13px;font-weight:600;color:#2b3036;transition:border-color .2s var(--ease),color .2s var(--ease),transform .2s var(--ease)}
.tag:hover{border-color:var(--ink);color:var(--ink);transform:translateY(-2px)}

/* 上一篇 / 下一篇 */
.postnav{display:grid;grid-template-columns:1fr;gap:14px;margin-top:30px}
@media (min-width:768px){.postnav{grid-template-columns:1fr 1fr}}
.postnav a{display:flex;flex-direction:column;gap:6px;padding:18px 20px;background:var(--white);border:1px solid var(--line);border-radius:var(--r-m);box-shadow:var(--shadow-1);transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease)}
.postnav a:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:var(--ink)}
.postnav .k{font-size:11.5px;letter-spacing:.14em;color:var(--muted);font-weight:700;text-transform:uppercase}
.postnav .t{font-weight:700;font-size:15.5px;line-height:1.55}
.postnav .next{align-items:flex-end;text-align:right}

/* 相关推荐 */
.related{padding:80px 0 0}
.related-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:32px}
.related-head h2{font-size:clamp(22px,3vw,32px);margin-top:14px}
.related-head p{color:var(--muted);font-size:14.5px;max-width:560px;margin-top:10px}
.card-grid{display:grid;grid-template-columns:1fr;gap:24px}
@media (min-width:640px){.card-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.card-grid{grid-template-columns:repeat(3,1fr)}}
.card{display:flex;flex-direction:column;background:var(--white);border:1px solid var(--line);border-radius:var(--r-m);overflow:hidden;box-shadow:var(--shadow-1);transition:transform .25s var(--ease),box-shadow .25s var(--ease)}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.card-media{aspect-ratio:16/10;overflow:hidden;background:#EFEEE9}
.card-media img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .55s var(--ease)}
.card:hover .card-media img{transform:scale(1.05)}
.card-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{font-size:18px;font-weight:800;line-height:1.45}
.card-body p{font-size:14.5px;color:var(--muted);line-height:1.8}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:13px;color:var(--muted)}
.card-foot .arrow{width:32px;height:32px;border-radius:999px;border:1px solid var(--line);display:inline-flex;align-items:center;justify-content:center;color:var(--ink);transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease)}
.card:hover .card-foot .arrow{background:var(--lime);border-color:var(--lime)}

/* 底部回归条 */
.back-strip{margin-top:80px}
.back-panel{background:var(--ink);color:#fff;border-radius:var(--r-l);border:1px solid rgba(255,255,255,.08);padding:38px 32px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px}
.back-panel h2{font-size:clamp(20px,2.7vw,28px);max-width:520px}
.back-panel p{color:rgba(255,255,255,.62);font-size:14.5px;margin-top:10px;max-width:520px}
.back-panel .panel-actions{display:flex;flex-wrap:wrap;gap:12px}

/* 页脚 */
.site-footer{background:var(--ink);color:#fff;margin-top:96px;padding:72px 0 0}
.footer-grid{display:grid;grid-template-columns:1fr;gap:36px}
@media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.15fr}}
.footer-brand{font-size:19px;font-weight:900;display:flex;flex-direction:column;gap:8px;letter-spacing:-.02em}
.footer-brand span{font-size:11px;letter-spacing:.2em;color:var(--lime);font-weight:600}
.footer-desc{color:rgba(255,255,255,.62);font-size:14.5px;line-height:1.9;margin-top:16px;max-width:350px}
.footer-title{font-size:13px;letter-spacing:.14em;color:var(--lime);font-weight:700;margin-bottom:18px}
.footer-list li{margin-bottom:10px;color:rgba(255,255,255,.72);font-size:14.5px;line-height:1.7}
.footer-list a{color:rgba(255,255,255,.72)}
.footer-list a:hover{color:var(--lime)}
.footer-bottom{margin-top:56px;padding:22px 0 26px;border-top:1px solid rgba(255,255,255,.1);display:flex;flex-wrap:wrap;gap:10px 20px;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.5)}

/* 入场动效 */
.reveal{opacity:0;transform:translateY(16px);animation:rise .6s var(--ease) forwards}
.reveal.d1{animation-delay:.06s}
.reveal.d2{animation-delay:.12s}
.reveal.d3{animation-delay:.18s}
@keyframes rise{to{opacity:1;transform:translateY(0)}}
@media (prefers-reduced-motion:reduce){
  .reveal{animation:none;opacity:1;transform:none}
  html{scroll-behavior:auto}
  *{transition:none!important}
}

/* roulang page: category1 */
:root{
  --ink:#111417;
  --ink-soft:#1b1f23;
  --lime:#C9F24D;
  --paper:#F7F6F2;
  --white:#FFFFFF;
  --line:#E6E5E0;
  --muted:#6B7075;
  --body:#2b3034;
  --r-sm:8px;
  --r-md:16px;
  --r-lg:24px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(17,20,23,.05), 0 10px 30px -12px rgba(17,20,23,.12);
  --sh-2:0 2px 6px rgba(17,20,23,.08), 0 24px 50px -18px rgba(17,20,23,.24);
  --ease:cubic-bezier(.22,1,.36,1);
  --sp-xs:8px;
  --sp-sm:16px;
  --sp-md:24px;
  --sp-lg:32px;
  --sp-xl:48px;
  --sp-2xl:64px;
  --sec-pad:104px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--body);
  font-family:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.9;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:900;letter-spacing:-.02em;line-height:1.15}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:4px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 40px}
.section{padding:var(--sec-pad) 0}
.section--tight{padding:72px 0}
.section--dark{background:var(--ink);color:rgba(255,255,255,.78)}
.section--dark h2,.section--dark h3{color:#fff}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--paper);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 6px 24px -16px rgba(17,20,23,.35)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.brand{display:flex;flex-direction:column;line-height:1.06;white-space:nowrap}
.brand-main{font-size:19px;font-weight:900;color:var(--ink);letter-spacing:-.02em}
.brand-sub{font-size:11px;font-weight:600;letter-spacing:.24em;color:var(--muted);margin-top:3px}
.nav-links{display:flex;align-items:center;gap:32px}
.nav-link{position:relative;font-size:15px;font-weight:600;color:var(--ink);padding:6px 0;transition:color .2s var(--ease)}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-4px;height:3px;background:var(--lime);
  transform:scaleX(0);transform-origin:left;transition:transform .28s var(--ease);
}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1)}
.nav-link:hover{color:#000}
.nav-actions{display:flex;align-items:center;gap:14px}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-pill);
  background:var(--white);position:relative;cursor:pointer;padding:0;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  position:absolute;left:50%;width:18px;height:2px;background:var(--ink);content:"";transform:translateX(-50%);
  transition:transform .25s var(--ease);
}
.nav-toggle span{top:calc(50% - 1px)}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-toggle[aria-expanded="true"] span{background:transparent}
.nav-toggle[aria-expanded="true"] span::before{transform:translateX(-50%) translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span::after{transform:translateX(-50%) translateY(-6px) rotate(-45deg)}
.drawer{display:none;background:var(--ink)}
.drawer.is-open{display:block}
.drawer-inner{display:flex;flex-direction:column;padding:10px 0 22px}
.drawer a{color:rgba(255,255,255,.86);font-weight:600;font-size:16px;padding:14px 0;border-bottom:1px solid rgba(255,255,255,.1)}
.drawer a.is-active{color:var(--lime)}
.drawer-btn{
  margin-top:18px;text-align:center;background:var(--lime);color:var(--ink)!important;
  border-radius:var(--r-pill);border-bottom:0!important;font-weight:700;padding:14px 0;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;border-radius:var(--r-pill);font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;transition:transform .2s var(--ease),background-color .2s var(--ease),color .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.btn-primary{background:var(--ink);color:var(--lime);border-color:var(--ink)}
.btn-primary:hover{background:#000;transform:translateY(-2px);box-shadow:0 14px 28px -16px rgba(17,20,23,.7)}
.btn-lime{background:var(--lime);color:var(--ink);border-color:var(--lime)}
.btn-lime:hover{filter:brightness(1.04);transform:translateY(-2px);box-shadow:0 16px 30px -18px rgba(201,242,77,.85)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--ink);background:var(--white);transform:translateY(-2px)}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.36)}
.btn-outline-light:hover{border-color:var(--lime);color:var(--lime);transform:translateY(-2px)}
.btn:hover .arrow{transform:translateX(4px)}
.arrow{transition:transform .2s var(--ease)}

/* ---------- 通用排版 ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;font-size:12px;font-weight:700;
  letter-spacing:.2em;text-transform:uppercase;color:var(--muted);margin-bottom:18px;
}
.eyebrow::before{content:"";width:20px;height:3px;background:var(--lime)}
.h2{font-size:clamp(24px,3.2vw,36px)}
.lead{font-size:17px;line-height:1.9;color:var(--muted);margin-top:18px;max-width:640px}
.section-head{max-width:760px;margin-bottom:56px}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:96px 0 88px;background:var(--paper)}
.hero-bg{
  position:absolute;inset:0;background-image:url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;opacity:.1;pointer-events:none;
}
.hero-inner{position:relative;z-index:1}
.hero-grid{display:grid;grid-template-columns:1.06fr .94fr;gap:64px;align-items:center}
.crumb{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--muted);margin-bottom:22px}
.crumb a:hover{color:var(--ink)}
.crumb span.dot{width:4px;height:4px;border-radius:50%;background:var(--line)}
.hero h1{font-size:clamp(30px,5vw,54px)}
.hero-sub{font-size:17px;color:var(--muted);margin-top:22px;max-width:520px;line-height:1.9}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.trust-row{display:flex;flex-wrap:wrap;gap:44px;margin-top:46px;padding-top:28px;border-top:1px solid var(--line)}
.trust-num{font-size:34px;font-weight:900;color:var(--ink);letter-spacing:-.02em;line-height:1.1}
.trust-num small{font-size:15px;font-weight:700;margin-left:4px;letter-spacing:0}
.trust-label{font-size:12.5px;color:var(--muted);letter-spacing:.1em;margin-top:8px}
.hero-media{position:relative;padding-bottom:36px}
.shot-main{
  width:78%;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-2);
  transition:transform .5s var(--ease);
}
.shot-float{
  position:absolute;right:0;bottom:0;width:47%;border-radius:var(--r-lg);overflow:hidden;
  border:8px solid var(--paper);box-shadow:var(--sh-2);transition:transform .5s var(--ease);
}
.shot-main img{width:100%;aspect-ratio:9/12;object-fit:cover}
.shot-float img{width:100%;aspect-ratio:9/12;object-fit:cover}
.hero-media:hover .shot-main{transform:translate(-6px,-6px)}
.hero-media:hover .shot-float{transform:translate(6px,6px)}
.badge-onmedia{
  position:absolute;left:6%;top:8%;background:var(--lime);color:var(--ink);
  font-size:12px;font-weight:700;letter-spacing:.12em;padding:8px 14px;border-radius:var(--r-pill);
}

/* ---------- 左文右图 ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.split--reverse .split-media{order:2}
.prose p{font-size:16.5px;line-height:1.95;color:var(--body);margin-bottom:18px}
.prose p:last-child{margin-bottom:0}
.prose h3{font-size:20px;margin:30px 0 12px}
.prose h3:first-child{margin-top:0}
.media-card{
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);background:var(--white);
  border:1px solid var(--line);
}
.media-card img{width:100%;aspect-ratio:4/3;object-fit:cover}
.media-caption{font-size:13px;color:var(--muted);padding:14px 18px;border-top:1px solid var(--line)}
.quote-block{
  border-left:4px solid var(--lime);background:var(--white);border-radius:0 var(--r-md) var(--r-md) 0;
  padding:20px 24px;font-size:15.5px;color:var(--ink);margin-top:26px;
}

/* ---------- 编号步骤条 ---------- */
.step-list{border-top:1px solid var(--line)}
.step-item{
  position:relative;display:grid;grid-template-columns:104px 1fr;gap:28px;
  padding:30px 0 30px 22px;border-bottom:1px solid var(--line);
}
.step-item::before{
  content:"";position:absolute;left:0;top:26px;bottom:26px;width:3px;background:var(--lime);
  opacity:0;transform:scaleY(.3);transform-origin:top;transition:opacity .3s var(--ease),transform .35s var(--ease);
}
.step-item:hover::before{opacity:1;transform:scaleY(1)}
.step-num{font-size:44px;font-weight:900;color:var(--line);letter-spacing:-.03em;line-height:1.05;transition:color .3s var(--ease),transform .3s var(--ease)}
.step-item:hover .step-num{color:var(--ink);transform:translateX(-6px)}
.step-title{font-size:20px;font-weight:800;color:var(--ink);margin-bottom:8px}
.step-desc{font-size:15.5px;color:var(--muted);max-width:720px}

/* ---------- 要点卡 ---------- */
.key-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.key-card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-md);padding:30px;
  box-shadow:var(--sh-1);transition:transform .3s var(--ease),box-shadow .3s var(--ease);
}
.key-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.key-card h3{font-size:20px;margin-bottom:12px}
.key-card p{font-size:15.5px;color:var(--muted)}
.key-tag{
  display:inline-block;font-size:12px;font-weight:700;letter-spacing:.12em;
  color:var(--ink);background:var(--lime);border-radius:var(--r-pill);padding:6px 12px;margin-bottom:16px;
}

/* ---------- 系统要求 ---------- */
.spec-wrap{display:grid;grid-template-columns:1fr 1fr;gap:0 64px}
.spec-row{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  min-height:48px;border-bottom:1px solid var(--line);font-size:15px;
}
.spec-label{color:var(--muted)}
.spec-value{font-weight:600;color:var(--ink);text-align:right}
.pill{
  display:inline-flex;align-items:center;background:var(--ink);color:var(--lime);
  font-size:12px;font-weight:600;letter-spacing:.08em;padding:4px 12px;border-radius:var(--r-pill);margin-left:6px;
}
.pill--outline{background:transparent;color:var(--ink);border:1px solid var(--line)}

/* ---------- FAQ ---------- */
.faq{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  position:relative;width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  min-height:64px;padding:18px 0 18px 18px;background:transparent;border:0;text-align:left;
  font-size:17px;font-weight:700;color:var(--ink);cursor:pointer;
}
.faq-q::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;background:var(--lime);
  opacity:0;transition:opacity .25s var(--ease);
}
.faq-item.open .faq-q::before{opacity:1}
.faq-icon{
  flex:0 0 auto;width:28px;height:28px;border-radius:50%;border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;font-size:16px;font-weight:600;
  color:var(--ink);background:var(--white);transition:background-color .25s var(--ease),border-color .25s var(--ease);
}
.faq-item.open .faq-icon{background:var(--lime);border-color:var(--lime)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .38s var(--ease)}
.faq-a p{padding:0 56px 24px 18px;font-size:15.5px;color:var(--muted)}

/* ---------- CTA 条 ---------- */
.cta-band{
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:48px;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  box-shadow:var(--sh-1);
}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);max-width:640px}
.cta-band p{font-size:15.5px;color:var(--muted);margin-top:12px;max-width:560px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding:76px 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:44px}
.footer-brand{display:flex;flex-direction:column;font-size:20px;font-weight:900;color:#fff;letter-spacing:-.02em}
.footer-brand span{font-size:11px;font-weight:600;letter-spacing:.24em;color:rgba(255,255,255,.45);margin-top:8px}
.footer-desc{font-size:14px;line-height:1.9;color:rgba(255,255,255,.6);margin-top:18px;max-width:340px}
.footer-title{font-size:14px;font-weight:700;color:#fff;letter-spacing:.06em;margin-bottom:18px}
.footer-list li{font-size:14px;line-height:2.2;color:rgba(255,255,255,.6)}
.footer-list a{color:rgba(255,255,255,.6);transition:color .2s var(--ease)}
.footer-list a:hover{color:var(--lime)}
.footer-bottom{
  margin-top:52px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.45);
}

/* ---------- 入场动效 ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.reveal.in{opacity:1;transform:none}
.key-grid .reveal:nth-child(2){transition-delay:.08s}
.step-list .reveal:nth-child(2){transition-delay:.06s}
.step-list .reveal:nth-child(3){transition-delay:.12s}
.step-list .reveal:nth-child(4){transition-delay:.18s}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .container{padding:0 32px}
  .hero-grid{gap:48px}
  .split{gap:48px}
}
@media (max-width:1023px){
  :root{--sec-pad:76px}
  .nav-links{display:none}
  .nav-toggle{display:inline-flex}
  .hero{padding:72px 0 64px}
  .hero-grid{grid-template-columns:1fr;gap:48px}
  .hero-media{padding-bottom:28px;max-width:560px}
  .split{grid-template-columns:1fr;gap:36px}
  .split--reverse .split-media{order:0}
  .spec-wrap{grid-template-columns:1fr;gap:0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
}
@media (max-width:639px){
  :root{--sec-pad:56px}
  body{font-size:15.5px}
  .container{padding:0 20px}
  .nav{height:64px}
  .brand-main{font-size:17px}
  .brand-sub{font-size:10px;letter-spacing:.18em}
  .nav-actions .btn-primary{display:none}
  .hero{padding:56px 0 52px}
  .hero-actions .btn{width:100%}
  .trust-row{gap:26px;margin-top:34px}
  .trust-num{font-size:28px}
  .step-item{grid-template-columns:64px 1fr;gap:18px;padding:24px 0 24px 16px}
  .step-num{font-size:32px}
  .key-grid{grid-template-columns:1fr}
  .faq-q{font-size:16px;padding-left:14px}
  .faq-a p{padding:0 8px 22px 14px}
  .cta-band{padding:32px 24px;flex-direction:column;align-items:flex-start}
  .cta-band .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .shot-float{width:52%}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
  *{animation-duration:.001ms!important;transition-duration:.001ms!important}
}

/* roulang page: category2 */
:root{
  --ink:#111417;
  --ink-2:#1b2025;
  --ink-3:#252b31;
  --lime:#C9F24D;
  --lime-deep:#b6e032;
  --paper:#F7F6F2;
  --card:#FFFFFF;
  --line:#E6E5E0;
  --line-dark:rgba(255,255,255,.14);
  --muted:#6B7075;
  --muted-2:#8b9096;
  --radius-s:8px;
  --radius-m:16px;
  --radius-l:24px;
  --pill:999px;
  --shadow-1:0 1px 2px rgba(17,20,23,.05);
  --shadow-2:0 10px 30px -12px rgba(17,20,23,.12);
  --shadow-hover:0 18px 40px -18px rgba(17,20,23,.26);
  --container:1200px;
  --ease:cubic-bezier(.22,1,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.9;
  font-weight:400;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;border:0}
a{color:inherit;text-decoration:none;background-color:transparent}
a:hover{color:inherit}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
h1,h2,h3,h4{font-weight:800;letter-spacing:-.02em;line-height:1.15;color:var(--ink)}
::selection{background:var(--lime);color:var(--ink)}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:4px}

/* 覆盖 Foundation 默认外观 */
body,.button,input,select,textarea{font-family:inherit}
h1,h2,h3,h4,h5,h6{font-family:inherit}
p{font-family:inherit}
a:hover,a:focus{color:inherit}
.row{max-width:none;margin:0}
.columns{padding-left:0;padding-right:0}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 20px;
}
.container-wide{max-width:1280px}

/* 顶部信息条 */
.topbar{
  background:var(--ink);
  color:#fff;
  font-size:12.5px;
  letter-spacing:.01em;
  min-height:36px;
  display:flex;
  align-items:center;
}
.topbar .container{display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%}
.topbar-domain{
  display:inline-flex;align-items:center;gap:8px;
  font-weight:600;letter-spacing:.08em;text-transform:lowercase;
  color:rgba(255,255,255,.92);
}
.topbar-domain i{color:var(--lime);font-size:11px}
.topbar-note{color:rgba(255,255,255,.62);font-weight:400}
.topbar-link{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--lime);font-weight:600;
  transition:transform .2s var(--ease),opacity .2s var(--ease);
}
.topbar-link:hover{transform:translateX(3px)}
.topbar-link i{font-size:11px}

/* 主导航 */
.site-header{
  position:sticky;top:0;z-index:80;
  background:var(--paper);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s var(--ease),background-color .25s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 8px 26px -18px rgba(17,20,23,.45)}
.nav{
  display:flex;align-items:center;justify-content:space-between;
  gap:24px;min-height:68px;
}
.brand{display:flex;flex-direction:column;line-height:1.12;padding:6px 0}
.brand-main{font-size:17px;font-weight:900;letter-spacing:-.01em;color:var(--ink)}
.brand-sub{font-size:10.5px;font-weight:600;letter-spacing:.18em;color:var(--muted);text-transform:uppercase}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-link{
  position:relative;
  display:inline-flex;align-items:center;
  padding:8px 14px;
  font-size:15px;font-weight:500;color:var(--ink);
  border-radius:var(--pill);
  transition:background-color .2s var(--ease),color .2s var(--ease);
}
.nav-link:hover{background:rgba(17,20,23,.05)}
.nav-link.active{font-weight:700}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:0;height:3px;
  background:var(--lime);border-radius:var(--pill);
}
.nav-actions{display:flex;align-items:center;gap:12px}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;
  font-size:15px;font-weight:600;line-height:1.2;
  border-radius:var(--pill);
  border:1px solid transparent;
  cursor:pointer;
  transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
  white-space:nowrap;
}
.btn i{font-size:13px;transition:transform .2s var(--ease)}
.btn:hover i.fa-arrow-right{transform:translateX(4px)}
.btn-primary{background:var(--ink);color:var(--lime);box-shadow:var(--shadow-1)}
.btn-primary:hover{background:#000;color:var(--lime)}
.btn-lime{background:var(--lime);color:var(--ink)}
.btn-lime:hover{background:var(--lime-deep)}
.btn-ghost{border-color:var(--ink);color:var(--ink);background:transparent}
.btn-ghost:hover{background:var(--ink);color:#fff}
.btn-ghost-light{border-color:rgba(255,255,255,.4);color:#fff;background:transparent}
.btn-ghost-light:hover{background:rgba(255,255,255,.1);color:#fff;border-color:rgba(255,255,255,.7)}
.btn-sm{padding:9px 18px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none}

/* 移动导航开关 */
.nav-toggle{
  display:none;position:relative;width:42px;height:42px;border-radius:var(--pill);
  border:1px solid var(--line);background:#fff;align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:16px;height:2px;background:var(--ink);border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:16px;height:2px;background:var(--ink);border-radius:2px;
  transition:transform .25s var(--ease),top .25s var(--ease);
}
.nav-toggle span::before{top:-5px}
.nav-toggle span::after{top:5px}
.nav-toggle.is-open span{background:transparent}
.nav-toggle.is-open span::before{top:0;transform:rotate(45deg)}
.nav-toggle.is-open span::after{top:0;transform:rotate(-45deg)}
.drawer{display:none;background:var(--ink);border-top:1px solid var(--line-dark)}
.drawer.is-open{display:block}
.drawer-inner{display:flex;flex-direction:column;padding:10px 20px 20px}
.drawer-inner a{
  color:rgba(255,255,255,.86);font-size:15px;font-weight:500;
  padding:14px 2px;border-bottom:1px solid var(--line-dark);
  transition:color .2s var(--ease),padding-left .2s var(--ease);
}
.drawer-inner a:hover{color:var(--lime);padding-left:6px}
.drawer-inner a.is-active{color:var(--lime);font-weight:700}
.drawer-inner .drawer-btn{
  margin-top:18px;border:0;text-align:center;
  background:var(--lime);color:var(--ink);font-weight:700;border-radius:var(--pill);
  padding:14px 20px;
}

/* 内页 Banner */
.page-hero{
  position:relative;
  background:var(--ink);
  color:#fff;
  overflow:hidden;
  padding:64px 0 72px;
  border-bottom:1px solid var(--line-dark);
}
.page-hero .hero-bg{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
  opacity:.22;filter:grayscale(.35) contrast(1.05);
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(17,20,23,.72) 0%,rgba(17,20,23,.9) 100%);
}
.page-hero .hero-inner{position:relative;z-index:2;text-align:center}
.crumb{
  display:flex;align-items:center;justify-content:center;gap:10px;
  font-size:12.5px;letter-spacing:.06em;color:rgba(255,255,255,.6);
  margin-bottom:22px;flex-wrap:wrap;
}
.crumb a{color:rgba(255,255,255,.82);transition:color .2s var(--ease)}
.crumb a:hover{color:var(--lime)}
.crumb span[aria-current]{color:var(--lime);font-weight:600}
.page-title{
  color:#fff;
  font-size:clamp(30px,5vw,54px);
  font-weight:900;
  letter-spacing:-.02em;
  line-height:1.15;
  max-width:16em;
  margin:0 auto;
}
.page-lead{
  margin:20px auto 0;
  max-width:34em;
  font-size:16.5px;
  line-height:1.8;
  color:rgba(255,255,255,.78);
}
.hero-actions{
  display:flex;flex-wrap:wrap;gap:14px;justify-content:center;
  margin-top:32px;
}
.hero-badges{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:center;
  margin-top:28px;
}
.badge{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 14px;
  font-size:12.5px;font-weight:600;letter-spacing:.02em;
  border-radius:var(--pill);
  border:1px solid var(--line-dark);
  color:rgba(255,255,255,.78);
  background:rgba(255,255,255,.04);
}
.badge i{color:var(--lime);font-size:11px}
.hero-stats{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  gap:16px;
  margin:44px auto 0;
  max-width:720px;
  padding-top:32px;
  border-top:1px solid var(--line-dark);
}
.hero-stats .num{
  font-size:clamp(32px,5vw,48px);font-weight:900;color:var(--lime);
  line-height:1;letter-spacing:-.02em;display:block;
}
.hero-stats .num small{font-size:16px;font-weight:700;margin-left:2px;letter-spacing:0}
.hero-stats .lbl{display:block;margin-top:10px;font-size:12.5px;color:rgba(255,255,255,.6);letter-spacing:.06em}

/* 板块与标题 */
.section{padding:56px 0}
.section-tight{padding:44px 0}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:720px;margin:0 auto 40px;text-align:center}
.section-head.left{text-align:left;margin-left:0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;
  color:var(--muted);margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--lime);border-radius:2px}
.section-head h2{font-size:clamp(24px,3.2vw,36px);font-weight:900}
.section-head p{margin-top:16px;color:var(--muted);font-size:16px;line-height:1.85}

/* 卡片矩阵 */
.cards-row{margin:0 -12px}
.cards-row>.columns{padding:0 12px 24px}
.cards-row::after{content:"";display:table;clear:both}
.feature-card{
  position:relative;height:100%;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-m);
  padding:28px 26px 26px;
  box-shadow:var(--shadow-1);
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#dcdbd5}
.feature-card .card-index{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:40px;height:26px;padding:0 10px;
  background:var(--ink);color:var(--lime);
  font-size:12px;font-weight:900;letter-spacing:.08em;
  border-radius:var(--pill);margin-bottom:18px;
}
.feature-card h3{font-size:19px;font-weight:800;line-height:1.35;margin-bottom:12px}
.feature-card p{color:var(--muted);font-size:14.8px;line-height:1.85}
.feature-card .card-icon{
  width:44px;height:44px;border-radius:12px;background:rgba(201,242,77,.22);
  display:flex;align-items:center;justify-content:center;color:var(--ink);
  font-size:17px;margin-bottom:18px;
}
.feature-card.is-dark{background:var(--ink);border-color:var(--ink);box-shadow:none}
.feature-card.is-dark h3{color:#fff}
.feature-card.is-dark p{color:rgba(255,255,255,.66)}
.feature-card.is-dark .card-icon{background:rgba(201,242,77,.16);color:var(--lime)}

/* 步骤流程 */
.steps{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:20px;
}
.step{
  position:relative;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-m);
  padding:26px 22px 24px;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease);
}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.step .step-no{
  font-size:34px;font-weight:900;color:var(--ink);line-height:1;
  letter-spacing:-.02em;
}
.step .step-line{width:32px;height:3px;background:var(--lime);border-radius:2px;margin:16px 0 16px}
.step h3{font-size:16.5px;font-weight:800;margin-bottom:10px}
.step p{font-size:14.4px;color:var(--muted);line-height:1.8}

/* 图文区 */
.split{
  display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
  gap:48px;align-items:center;
}
.split-media{position:relative}
.media-frame{
  border-radius:var(--radius-l);overflow:hidden;background:#fff;
  border:1px solid var(--line);
  box-shadow:var(--shadow-2);
  aspect-ratio:16/10;
}
.media-frame img{width:100%;height:100%;object-fit:cover}
.media-note{
  position:absolute;left:-16px;bottom:-18px;
  background:var(--ink);color:#fff;
  border-radius:var(--radius-m);
  padding:16px 20px;max-width:250px;
  box-shadow:var(--shadow-2);
}
.media-note strong{display:block;color:var(--lime);font-size:13px;letter-spacing:.08em;margin-bottom:6px}
.media-note span{font-size:13.5px;color:rgba(255,255,255,.76);line-height:1.7}
.prose p{color:var(--muted);font-size:16px;line-height:1.9;margin-bottom:18px}
.prose p strong{color:var(--ink);font-weight:700}
.prose .inline-tag{
  display:inline-block;padding:2px 10px;border-radius:var(--pill);
  background:rgba(201,242,77,.3);color:var(--ink);font-weight:600;font-size:14px;
}

/* 要点双列 */
.check-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.check-panel{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-l);
  padding:30px 28px;
}
.check-panel h3{
  font-size:18px;font-weight:800;margin-bottom:8px;
  display:flex;align-items:center;gap:10px;
}
.check-panel h3 i{color:var(--lime-deep);font-size:15px}
.check-panel .panel-sub{font-size:13.5px;color:var(--muted);margin-bottom:18px}
.check-list li{
  display:flex;gap:12px;align-items:flex-start;
  padding:14px 0;border-top:1px solid var(--line);
  font-size:14.8px;color:var(--muted);line-height:1.8;
}
.check-list li:first-child{border-top:0}
.check-list li i{color:var(--ink);font-size:13px;margin-top:6px;flex:none}
.check-list li b{color:var(--ink);font-weight:700}

/* 深色 CTA 区块 */
.cta-block{
  background:var(--ink);
  color:#fff;
  border-radius:var(--radius-l);
  border:1px solid var(--line-dark);
  padding:52px 44px;
  display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,.75fr);
  gap:44px;align-items:center;
}
.cta-block h2{color:#fff;font-size:clamp(24px,3.2vw,34px);font-weight:900;margin-bottom:16px}
.cta-block p{color:rgba(255,255,255,.7);font-size:15.5px;line-height:1.85;max-width:34em}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.cta-safe{
  display:inline-flex;align-items:center;gap:8px;
  margin-top:22px;font-size:13px;color:rgba(255,255,255,.55);
}
.cta-safe i{color:var(--lime)}
.qr-panel{
  background:var(--ink-2);
  border:1px solid var(--line-dark);
  border-radius:var(--radius-m);
  padding:24px;text-align:center;
}
.qr-box{
  width:120px;height:120px;margin:0 auto 16px;
  border-radius:12px;background:#fff;
  display:flex;align-items:center;justify-content:center;
  color:var(--ink);font-size:34px;
}
.qr-panel span{display:block;font-size:13px;color:rgba(255,255,255,.6);letter-spacing:.04em}

/* FAQ */
.faq-wrap{max-width:840px;margin:0 auto;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line);position:relative}
.faq-item::before{
  content:"";position:absolute;left:-16px;top:14px;bottom:14px;width:4px;
  background:var(--lime);border-radius:2px;opacity:0;
  transform:scaleY(.4);transform-origin:top;
  transition:opacity .25s var(--ease),transform .25s var(--ease);
}
.faq-item.is-open::before{opacity:1;transform:scaleY(1)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:20px 4px;text-align:left;
  font-size:16.5px;font-weight:700;color:var(--ink);
  min-height:60px;
  transition:color .2s var(--ease);
}
.faq-q:hover{color:var(--lime-deep)}
.faq-q .sign{
  flex:none;width:28px;height:28px;border-radius:50%;
  border:1px solid var(--line);display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:700;color:var(--ink);transition:background-color .2s,color .2s,transform .25s var(--ease);
}
.faq-item.is-open .faq-q .sign{background:var(--ink);color:var(--lime);border-color:var(--ink);transform:rotate(180deg)}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .35s var(--ease);
}
.faq-a-inner{padding:0 46px 24px 4px;color:var(--muted);font-size:15.2px;line-height:1.9}
.faq-a-inner b{color:var(--ink);font-weight:700}

/* 浅色 CTA 条 */
.cta-strip{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-l);
  padding:32px 36px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  box-shadow:var(--shadow-1);
}
.cta-strip h2{font-size:clamp(20px,2.6vw,26px);font-weight:900;margin-bottom:8px}
.cta-strip p{color:var(--muted);font-size:14.6px}

/* 页脚 */
.site-footer{
  background:var(--ink);color:#fff;
  padding:64px 0 26px;
  margin-top:64px;
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.15fr;gap:36px;
  padding-bottom:44px;border-bottom:1px solid var(--line-dark);
}
.footer-brand{font-size:17px;font-weight:900;color:#fff;line-height:1.3}
.footer-brand span{
  display:block;margin-top:8px;
  font-size:10.5px;font-weight:600;letter-spacing:.18em;
  color:rgba(255,255,255,.45);
}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.6);max-width:30em}
.footer-title{font-size:13px;font-weight:700;letter-spacing:.1em;color:var(--lime);margin-bottom:18px}
.footer-list li{margin-bottom:11px;font-size:14px;color:rgba(255,255,255,.62)}
.footer-list a{color:rgba(255,255,255,.68);transition:color .2s var(--ease),padding-left .2s var(--ease)}
.footer-list a:hover{color:var(--lime);padding-left:4px}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  padding-top:24px;font-size:12.6px;color:rgba(255,255,255,.45);
}

/* 入场动效 */
html.js .reveal{opacity:0;transform:translateY(16px);transition:opacity .55s var(--ease),transform .55s var(--ease)}
html.js .reveal.is-visible{opacity:1;transform:none}

/* 响应式 */
@media (min-width:640px){
  .container{padding:0 32px}
}
@media (min-width:1024px){
  .container{padding:0 40px}
  .section{padding:96px 0}
  .section-tight{padding:64px 0}
  .page-hero{padding:84px 0 96px}
}
@media (max-width:1023px){
  .nav-links{display:none}
  .nav-toggle{display:flex}
  .split{grid-template-columns:minmax(0,1fr);gap:40px}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-block{grid-template-columns:minmax(0,1fr);padding:40px 32px}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
}
@media (max-width:767px){
  body{font-size:15.5px}
  .topbar-note{display:none}
  .nav{min-height:62px;gap:12px}
  .brand-main{font-size:16px}
  .brand-sub{font-size:9.5px;letter-spacing:.14em}
  .nav-actions .btn{padding:10px 16px;font-size:14px}
  .page-hero{padding:48px 0 56px}
  .page-lead{font-size:15.4px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .hero-stats{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin-top:32px}
  .hero-stats .lbl{font-size:11px;letter-spacing:0}
  .section{padding:52px 0}
  .section-head{margin-bottom:32px}
  .cards-row{margin:0}
  .cards-row>.columns{padding:0 0 18px}
  .check-grid{grid-template-columns:minmax(0,1fr)}
  .steps{grid-template-columns:minmax(0,1fr)}
  .media-note{position:static;margin-top:16px;max-width:none}
  .cta-block{padding:32px 22px;border-radius:var(--radius-m)}
  .cta-actions .btn{width:100%}
  .qr-panel{max-width:280px;margin:0 auto}
  .faq-item::before{left:-10px}
  .faq-q{font-size:15.4px}
  .faq-a-inner{padding-right:16px}
  .cta-strip{flex-direction:column;align-items:flex-start;padding:26px 22px}
  .cta-strip .btn{width:100%}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .site-footer{padding:48px 0 24px;margin-top:48px}
  .footer-bottom{flex-direction:column}
}
@media (max-width:360px){
  .hero-stats{grid-template-columns:minmax(0,1fr);gap:18px;text-align:center}
  .container{padding:0 16px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important}
  html{scroll-behavior:auto}
  html.js .reveal{opacity:1;transform:none}
}