/* roulang page: index */
:root{
  --orange:#FF6A2B;
  --orange-deep:#D9490F;
  --orange-soft:#FFF1E9;
  --purple-1:#2B1B63;
  --purple-2:#6C4BE0;
  --lime:#C8F55B;
  --ink:#120E24;
  --bg:#FBFAFF;
  --card:#FFFFFF;
  --line:#E7E3F2;
  --text:#1B1633;
  --muted:#5F5A78;
  --radius-lg:24px;
  --radius-md:18px;
  --radius-sm:14px;
  --shadow:0 18px 40px -24px rgba(43,27,99,.35);
  --shadow-hover:0 22px 48px -22px rgba(43,27,99,.45);
  --ease:all .25s ease;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  padding-top:72px;
  font-family:"HarmonyOS Sans","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.9;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:var(--ease)}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,textarea,select{font:inherit}
::selection{background:rgba(255,106,43,.22)}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:96px 0}
.section-tight{padding:72px 0}
.section-head{max-width:720px;margin-bottom:48px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.12em;text-transform:uppercase;
  color:var(--orange-deep);font-weight:700;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--orange);border-radius:2px}
h2.section-title{font-size:32px;line-height:1.35;font-weight:700;letter-spacing:-.01em}
.section-desc{margin-top:14px;color:var(--muted);font-size:16.5px;line-height:1.9}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 26px;border-radius:999px;
  font-size:15.5px;font-weight:600;letter-spacing:.01em;
  transition:var(--ease);white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,var(--orange),var(--orange-deep));
  color:#fff;box-shadow:0 14px 30px -16px rgba(217,73,15,.85);
}
.btn-primary:hover{
  filter:brightness(1.06);transform:translateY(-2px);
  box-shadow:0 20px 36px -16px rgba(217,73,15,.9);
}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{
  background:#fff;border:1.5px solid var(--orange);color:var(--orange-deep);
}
.btn-ghost:hover{background:var(--orange-soft);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-outline-light{
  background:transparent;border:1.5px solid rgba(255,255,255,.7);color:#fff;
}
.btn-outline-light:hover{background:rgba(255,255,255,.14);transform:translateY(-2px)}

/* ===== 导航 ===== */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:200;height:72px;
  background:rgba(251,250,255,.94);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;transition:var(--ease);
}
.site-header.scrolled{border-bottom-color:var(--line);box-shadow:0 10px 28px -22px rgba(43,27,99,.6)}
.header-inner{height:72px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
  width:38px;height:38px;border-radius:12px;
  background:linear-gradient(140deg,var(--purple-1),var(--purple-2));
  display:grid;place-items:center;box-shadow:0 8px 18px -10px rgba(108,75,224,.9);
}
.logo-mark svg{width:20px;height:20px;fill:var(--lime)}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-text b{font-size:16px;font-weight:800;letter-spacing:.01em;color:var(--text)}
.logo-text span{font-size:11px;letter-spacing:.18em;color:var(--muted)}
.main-nav{display:flex;align-items:center;gap:6px}
.nav-link{
  position:relative;padding:9px 13px;border-radius:999px;
  font-size:14.5px;color:var(--muted);font-weight:500;
}
.nav-link::after{
  content:"";position:absolute;left:13px;right:13px;bottom:4px;height:2px;
  background:var(--orange);border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform .22s ease;
}
.nav-link:hover{color:var(--text)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{background:var(--orange-soft);color:var(--orange-deep);font-weight:700}
.nav-link.active::after{display:none}
.nav-cta{margin-left:12px;min-height:42px;padding:0 22px;font-size:14.5px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:#fff;place-items:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text);border-radius:2px;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* ===== Hero ===== */
.hero{
  position:relative;overflow:hidden;color:#fff;
  background:linear-gradient(135deg,var(--purple-1) 0%,var(--purple-2) 100%);
  border-radius:0 0 40px 40px;
  padding:72px 0 84px;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:
    radial-gradient(2px 2px at 12% 22%,rgba(255,255,255,.75) 50%,transparent 51%),
    radial-gradient(1.6px 1.6px at 28% 68%,rgba(200,245,91,.7) 50%,transparent 51%),
    radial-gradient(2px 2px at 46% 14%,rgba(255,255,255,.6) 50%,transparent 51%),
    radial-gradient(1.6px 1.6px at 64% 52%,rgba(255,255,255,.55) 50%,transparent 51%),
    radial-gradient(2px 2px at 82% 28%,rgba(200,245,91,.6) 50%,transparent 51%),
    radial-gradient(1.6px 1.6px at 92% 74%,rgba(255,255,255,.5) 50%,transparent 51%),
    radial-gradient(1.4px 1.4px at 36% 88%,rgba(255,255,255,.45) 50%,transparent 51%);
  opacity:.85;pointer-events:none;
}
.hero .container{position:relative;z-index:2}
.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  padding:7px 16px;border-radius:999px;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);
  font-size:13px;letter-spacing:.06em;color:#EDE9FF;margin-bottom:22px;
}
.hero-eyebrow i{width:7px;height:7px;border-radius:50%;background:var(--lime);display:inline-block}
.hero h1{
  font-size:50px;line-height:1.22;font-weight:800;letter-spacing:-.02em;
  color:#fff;margin-bottom:20px;
}
.hero h1 em{font-style:normal;color:var(--lime)}
.hero-sub{font-size:17px;line-height:1.9;color:rgba(255,255,255,.82);max-width:520px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin:32px 0 30px}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px}
.hero-badges li{
  display:inline-flex;align-items:center;gap:7px;
  padding:7px 15px;border-radius:999px;
  background:rgba(200,245,91,.94);color:#20260D;
  font-size:13px;font-weight:700;letter-spacing:.01em;
}
.hero-badges li b{font-size:14px;font-variant-numeric:tabular-nums}

.hero-visual{position:relative;margin-right:-24px}
.hero-visual img{
  width:100%;aspect-ratio:16/11;object-fit:cover;
  border-radius:28px;border:1px solid rgba(255,255,255,.24);
  box-shadow:0 40px 70px -40px rgba(0,0,0,.75);
}
.float-card{
  position:absolute;left:-26px;bottom:36px;
  background:#fff;color:var(--text);border-radius:18px;
  padding:14px 18px;box-shadow:0 24px 44px -22px rgba(10,6,30,.6);
  display:flex;flex-direction:column;gap:2px;min-width:168px;
}
.float-card small{font-size:12px;letter-spacing:.1em;color:var(--muted)}
.float-card strong{font-size:19px;font-weight:800;font-variant-numeric:tabular-nums}
.float-card span{font-size:12.5px;color:var(--orange-deep);font-weight:600}
.float-card.top{left:auto;right:26px;bottom:auto;top:-18px}

/* ===== 价值点 2+1 ===== */
.value-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.value-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:34px 32px;box-shadow:var(--shadow);transition:var(--ease);
  display:flex;flex-direction:column;gap:16px;
}
.value-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(255,106,43,.3)}
.value-icon{
  width:56px;height:56px;border-radius:18px;display:grid;place-items:center;
  background:linear-gradient(140deg,var(--orange),var(--orange-deep));
  box-shadow:0 12px 24px -14px rgba(217,73,15,.9);
}
.value-icon.violet{background:linear-gradient(140deg,var(--purple-1),var(--purple-2));box-shadow:0 12px 24px -14px rgba(108,75,224,.9)}
.value-icon svg{width:24px;height:24px;fill:none;stroke:#fff;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.value-card h3{font-size:21px;font-weight:700;line-height:1.4}
.value-card p{font-size:15.5px;color:var(--muted);line-height:1.85}
.value-wide{
  grid-column:1 / -1;flex-direction:row;align-items:center;gap:28px;
  background:linear-gradient(120deg,#F6F3FF 0%,#FFFFFF 58%);
}
.value-wide .value-body{max-width:640px}
.value-wide .value-foot{margin-left:auto;display:flex;gap:10px;flex-wrap:wrap}
.pill{
  display:inline-flex;align-items:center;padding:6px 14px;border-radius:999px;
  background:#F2EEFF;color:var(--purple-1);font-size:13px;font-weight:600;
}
.pill.lime{background:rgba(200,245,91,.4);color:#3C4A0C}

/* ===== 截图轮播 ===== */
.shots-band{background:#F5F2FF;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.shots-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px}
.shots-nav{display:flex;gap:10px;flex-shrink:0}
.shot-arrow{
  width:46px;height:46px;border-radius:50%;background:#fff;border:1px solid var(--line);
  display:grid;place-items:center;transition:var(--ease);color:var(--text);
}
.shot-arrow:hover{border-color:var(--orange);color:var(--orange-deep);transform:translateY(-2px);box-shadow:var(--shadow)}
.shot-arrow svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.shots-track{
  display:flex;gap:24px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:6px 4px 26px;scrollbar-width:none;
}
.shots-track::-webkit-scrollbar{display:none}
.shot-card{
  flex:0 0 380px;scroll-snap-align:start;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  overflow:hidden;box-shadow:var(--shadow);transition:var(--ease);
}
.shot-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(255,106,43,.3)}
.shot-frame{position:relative;aspect-ratio:16/10;overflow:hidden;background:#EDE9F9}
.shot-frame img{width:100%;height:100%;object-fit:cover}
.shot-body{padding:20px 22px 24px}
.shot-body h3{font-size:17.5px;font-weight:700;margin-bottom:6px}
.shot-body p{font-size:14.5px;color:var(--muted);line-height:1.8}
.shots-progress{height:5px;border-radius:999px;background:#E2DCF5;overflow:hidden;margin-top:8px}
.shots-progress i{display:block;height:100%;width:28%;background:var(--lime);border-radius:999px;transition:width .25s ease,transform .25s ease}

/* ===== 系统要求卡片行 ===== */
.sys-list{display:flex;flex-direction:column;gap:16px}
.sys-row{
  display:flex;align-items:center;gap:28px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);
  padding:22px 28px;transition:var(--ease);box-shadow:var(--shadow);
}
.sys-row:hover{border-color:rgba(255,106,43,.34);transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.sys-name{display:flex;align-items:center;gap:14px;min-width:210px}
.sys-badge{
  width:44px;height:44px;border-radius:14px;display:grid;place-items:center;
  background:linear-gradient(140deg,var(--purple-1),var(--purple-2));
  color:#fff;font-size:13px;font-weight:800;letter-spacing:.02em;flex-shrink:0;
}
.sys-name b{font-size:16.5px;font-weight:700;display:block;line-height:1.4}
.sys-name small{font-size:12.5px;color:var(--muted)}
.sys-configs{display:flex;gap:0;flex:1}
.sys-config{flex:1;padding-left:28px;border-left:1px solid var(--line)}
.sys-config:first-child{border-left:0;padding-left:0}
.sys-config span{display:block;font-size:12px;letter-spacing:.08em;color:var(--muted);margin-bottom:4px}
.sys-config strong{font-size:15px;font-weight:600;font-variant-numeric:tabular-nums}

/* ===== 评价墙 ===== */
.reviews{
  position:relative;background:var(--ink);color:#fff;overflow:hidden;
  border-radius:40px;margin:0 auto;max-width:1240px;
}
.reviews::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    radial-gradient(1.8px 1.8px at 10% 30%,rgba(255,255,255,.5) 50%,transparent 51%),
    radial-gradient(1.4px 1.4px at 24% 72%,rgba(200,245,91,.55) 50%,transparent 51%),
    radial-gradient(1.8px 1.8px at 52% 18%,rgba(255,255,255,.4) 50%,transparent 51%),
    radial-gradient(1.4px 1.4px at 74% 58%,rgba(255,255,255,.45) 50%,transparent 51%),
    radial-gradient(1.8px 1.8px at 90% 26%,rgba(200,245,91,.5) 50%,transparent 51%);
  opacity:.9;
}
.reviews .container{position:relative;z-index:2;padding-top:88px;padding-bottom:92px}
.reviews-head{display:flex;align-items:center;gap:28px;flex-wrap:wrap;margin-bottom:44px}
.score-badge{
  display:flex;align-items:baseline;gap:10px;
  padding:14px 26px;border-radius:20px;
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.18);
}
.score-badge b{font-size:38px;font-weight:800;color:var(--lime);line-height:1;font-variant-numeric:tabular-nums}
.score-badge span{font-size:13.5px;color:rgba(255,255,255,.7)}
.reviews h2{font-size:30px;font-weight:700;line-height:1.4}
.reviews-desc{color:rgba(255,255,255,.68);font-size:15.5px;max-width:560px;margin-top:8px}
.review-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.review-col{display:flex;flex-direction:column;gap:24px}
.review-col.offset{margin-top:32px}
.review-card{
  background:rgba(255,255,255,.055);border:1px solid rgba(255,255,255,.13);
  border-radius:var(--radius-md);padding:26px 26px 24px;transition:var(--ease);
}
.review-card:hover{background:rgba(255,255,255,.09);border-color:rgba(200,245,91,.4);transform:translateY(-4px)}
.review-top{display:flex;align-items:center;gap:14px;margin-bottom:14px}
.avatar{
  width:44px;height:44px;border-radius:50%;flex-shrink:0;
  background:linear-gradient(140deg,var(--purple-2),var(--orange));
  display:grid;place-items:center;color:#fff;font-weight:700;font-size:15px;
}
.review-top b{display:block;font-size:15px;font-weight:700;color:#fff;line-height:1.4}
.stars{display:flex;gap:3px;margin-top:2px}
.stars i{width:12px;height:12px;background:var(--lime);clip-path:polygon(50% 0%,61% 35%,98% 35%,68% 57%,79% 91%,50% 70%,21% 91%,32% 57%,2% 35%,39% 35%);display:block}
.review-card p{font-size:15px;line-height:1.85;color:rgba(255,255,255,.82)}
.review-device{
  display:inline-flex;margin-top:16px;padding:5px 13px;border-radius:999px;
  background:rgba(200,245,91,.16);color:var(--lime);font-size:12.5px;font-weight:600;
}

/* ===== 下载 CTA 带 ===== */
.download-band{
  position:relative;overflow:hidden;color:#fff;
  background:linear-gradient(135deg,var(--purple-1),var(--purple-2));
  border-radius:40px;margin:0 auto;max-width:1240px;
}
.download-band .container{position:relative;z-index:2;padding-top:76px;padding-bottom:80px}
.download-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;flex-wrap:wrap;margin-bottom:40px}
.download-head h2{font-size:32px;font-weight:700;line-height:1.35;margin-bottom:10px}
.download-head p{color:rgba(255,255,255,.78);font-size:16px;max-width:600px}
.dl-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
.dl-btn{
  display:flex;align-items:center;gap:12px;padding:16px 18px;border-radius:16px;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.2);
  transition:var(--ease);min-height:68px;
}
.dl-btn:hover{background:rgba(255,255,255,.16);transform:translateY(-3px)}
.dl-btn.primary{
  background:linear-gradient(135deg,var(--orange),var(--orange-deep));
  border-color:transparent;box-shadow:0 16px 32px -18px rgba(217,73,15,.95);
}
.dl-btn.primary:hover{filter:brightness(1.07)}
.dl-icon{
  width:34px;height:34px;border-radius:10px;flex-shrink:0;
  background:rgba(255,255,255,.16);display:grid;place-items:center;
}
.dl-btn.primary .dl-icon{background:rgba(255,255,255,.22)}
.dl-icon svg{width:17px;height:17px;fill:none;stroke:#fff;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.dl-text b{display:block;font-size:15px;font-weight:700;line-height:1.35}
.dl-text small{display:block;font-size:12.5px;color:rgba(255,255,255,.66);font-variant-numeric:tabular-nums}
.dl-btn.primary .dl-text small{color:rgba(255,255,255,.85)}

/* ===== 资讯列表 ===== */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.news-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  overflow:hidden;box-shadow:var(--shadow);transition:var(--ease);display:flex;flex-direction:column;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(255,106,43,.3)}
.news-cover{display:block;aspect-ratio:16/9;overflow:hidden;background:#EFEBFB}
.news-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.news-card:hover .news-cover img{transform:scale(1.05)}
.news-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.tag{
  align-self:flex-start;display:inline-flex;padding:5px 13px;border-radius:999px;
  background:rgba(200,245,91,.45);color:#3C4A0C;font-size:12.5px;font-weight:700;
}
.news-body h3{font-size:17.5px;line-height:1.55;font-weight:700;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-body h3 a:hover{color:var(--orange-deep)}
.news-body p{font-size:14.5px;color:var(--muted);line-height:1.8;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--muted)}
.news-more{color:var(--orange-deep);font-weight:600;font-size:13.5px}
.news-more:hover{text-decoration:underline}
.news-empty{
  grid-column:1/-1;display:flex;flex-direction:column;align-items:center;gap:12px;
  padding:56px 24px;border:1px dashed var(--line);border-radius:var(--radius-lg);
  background:#fff;color:var(--muted);font-size:15px;text-align:center;
}
.news-empty svg{width:48px;height:48px;fill:none;stroke:#C9C2E4;stroke-width:1.6;stroke-linecap:round}
.news-empty a{color:var(--orange-deep);font-weight:600}

/* ===== FAQ ===== */
.faq-wrap{display:grid;grid-template-columns:.85fr 1.15fr;gap:56px;align-items:start}
.faq-aside h2{font-size:32px;line-height:1.35;font-weight:700;margin-bottom:14px}
.faq-aside p{color:var(--muted);font-size:16px;line-height:1.9;margin-bottom:24px}
.faq-aside .btn{min-height:44px}
.faq-list{display:flex;flex-direction:column;gap:14px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);
  position:relative;overflow:hidden;transition:var(--ease);
}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:4px;
  background:var(--orange);transform:scaleY(0);transform-origin:top;transition:transform .25s ease;
}
.faq-item.open::before{transform:scaleY(1)}
.faq-item.open{border-color:rgba(255,106,43,.36);box-shadow:var(--shadow)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;text-align:left;font-size:16px;font-weight:600;color:var(--text);
}
.faq-q:hover{color:var(--orange-deep)}
.faq-icon{
  width:22px;height:22px;flex-shrink:0;position:relative;transition:transform .25s ease;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--orange);border-radius:2px;
}
.faq-icon::before{left:3px;right:3px;top:10px;height:2px}
.faq-icon::after{top:3px;bottom:3px;left:10px;width:2px;transition:opacity .2s ease}
.faq-item.open .faq-icon{transform:rotate(180deg)}
.faq-item.open .faq-icon::after{opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a p{padding:0 24px 22px;font-size:15px;line-height:1.85;color:var(--muted)}

/* ===== 结尾 CTA ===== */
.final-cta{
  background:linear-gradient(120deg,#FFF3EA 0%,#F4F0FF 100%);
  border:1px solid var(--line);border-radius:32px;
  padding:52px 48px;display:flex;align-items:center;justify-content:space-between;
  gap:32px;flex-wrap:wrap;
}
.final-cta h2{font-size:29px;line-height:1.4;font-weight:700;margin-bottom:8px}
.final-cta p{color:var(--muted);font-size:15.5px;max-width:600px}
.final-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ===== 页脚 ===== */
.site-footer{
  position:relative;overflow:hidden;background:var(--ink);color:rgba(255,255,255,.72);
  margin-top:96px;padding:72px 0 0;
}
.site-footer::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    radial-gradient(1.6px 1.6px at 14% 24%,rgba(255,255,255,.42) 50%,transparent 51%),
    radial-gradient(1.4px 1.4px at 32% 66%,rgba(200,245,91,.45) 50%,transparent 51%),
    radial-gradient(1.6px 1.6px at 58% 32%,rgba(255,255,255,.32) 50%,transparent 51%),
    radial-gradient(1.4px 1.4px at 78% 72%,rgba(255,255,255,.36) 50%,transparent 51%),
    radial-gradient(1.6px 1.6px at 92% 20%,rgba(200,245,91,.4) 50%,transparent 51%);
}
.site-footer .container{position:relative;z-index:2}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:48px;padding-bottom:56px}
.footer-brand .logo-text b{color:#fff}
.footer-brand .logo-text span{color:rgba(255,255,255,.5)}
.footer-brand p{margin-top:18px;font-size:14.5px;line-height:1.9;color:rgba(255,255,255,.62);max-width:320px}
.footer-col h3{font-size:15px;font-weight:600;color:#fff;margin-bottom:18px}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.64)}
.footer-col a:hover{color:var(--lime)}
.footer-note{font-size:13.5px;line-height:1.9;color:rgba(255,255,255,.55)}
.footer-note b{color:rgba(255,255,255,.82);font-weight:600;display:block;margin-bottom:6px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0 28px;display:flex;align-items:center;justify-content:space-between;
  gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.5);
}

/* ===== 响应式 ===== */
@media (max-width:1199px){
  .hero h1{font-size:42px}
  .nav-link{padding:9px 10px;font-size:14px}
  .nav-cta{margin-left:8px;padding:0 18px}
  .dl-grid{grid-template-columns:repeat(3,1fr)}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:36px}
}
@media (max-width:991px){
  .container{padding:0 24px}
  .section{padding:72px 0}
  .nav-toggle{display:grid}
  .main-nav{
    position:fixed;top:72px;left:0;right:0;bottom:0;
    background:#fff;flex-direction:column;align-items:stretch;gap:6px;
    padding:24px 24px 40px;overflow-y:auto;
    transform:translateX(102%);visibility:hidden;
    transition:transform .3s ease,visibility .3s ease;
    box-shadow:-20px 0 50px -30px rgba(43,27,99,.6);
  }
  .main-nav.open{transform:translateX(0);visibility:visible}
  .nav-link{padding:14px 16px;font-size:16px;border-radius:14px}
  .nav-link::after{display:none}
  .nav-link.active{background:var(--orange-soft)}
  .nav-cta{margin:14px 0 0;min-height:48px;width:100%}
  .hero{padding:56px 0 64px;border-radius:0 0 28px 28px}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero h1{font-size:38px}
  .hero-visual{margin-right:0}
  .float-card{left:12px;bottom:-18px;padding:12px 16px;min-width:150px}
  .float-card.top{top:-16px;right:12px;left:auto}
  .value-grid{grid-template-columns:1fr}
  .value-wide{flex-direction:column;align-items:flex-start}
  .value-wide .value-foot{margin-left:0}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .review-grid{grid-template-columns:1fr}
  .review-col.offset{margin-top:0}
  .faq-wrap{grid-template-columns:1fr;gap:32px}
  .shot-card{flex:0 0 320px}
  .shots-nav{display:none}
  .final-cta{padding:40px 32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .sys-row{flex-direction:column;align-items:flex-start;gap:18px}
  .sys-name{min-width:0}
  .sys-configs{width:100%}
  .sys-config{padding-left:20px}
  .reviews{border-radius:28px}
  .download-band{border-radius:28px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  body{font-size:15.5px}
  .section{padding:56px 0}
  .hero h1{font-size:31px;line-height:1.28}
  .hero-sub{font-size:15.5px}
  .hero-badges li{font-size:12px;padding:6px 12px}
  .hero-badges li b{font-size:13px}
  .hero-actions .btn{width:100%}
  h2.section-title{font-size:26px}
  .news-grid{grid-template-columns:1fr}
  .dl-grid{grid-template-columns:repeat(2,1fr)}
  .sys-configs{flex-direction:column;gap:14px}
  .sys-config{padding-left:0;border-left:0;border-top:1px solid var(--line);padding-top:12px}
  .sys-config:first-child{border-top:0;padding-top:0}
  .shot-card{flex:0 0 272px}
  .final-cta{padding:32px 24px}
  .final-actions{width:100%}
  .final-actions .btn{flex:1 1 100%}
  .reviews .container{padding-top:56px;padding-bottom:60px}
  .download-band .container{padding-top:52px;padding-bottom:56px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .value-card{padding:26px 22px}
}
@media (max-width:479px){
  .hero h1{font-size:27px}
  .logo-text b{font-size:15px}
  .logo-text span{font-size:10px;letter-spacing:.13em}
  .dl-grid{grid-template-columns:1fr}
  .score-badge b{font-size:30px}
  .faq-q{font-size:15px;padding:18px 18px}
  .faq-a p{padding:0 18px 20px}
}

/* roulang page: article */
:root{
  --orange:#FF6A2B;
  --orange-deep:#D9490F;
  --orange-soft:#FFF1E9;
  --purple-1:#2B1B63;
  --purple-2:#6C4BE0;
  --lime:#C8F55B;
  --ink:#1B1633;
  --ink-2:#5F5A78;
  --ink-3:#8C86A3;
  --paper:#FBFAFF;
  --card:#FFFFFF;
  --line:#E7E3F2;
  --dark:#120E24;
  --r-lg:24px;
  --r-md:18px;
  --r-sm:14px;
  --shadow:0 18px 40px -24px rgba(43,27,99,.35);
  --shadow-hover:0 22px 46px -22px rgba(43,27,99,.45);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding:0;
  font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Segoe UI",Roboto,system-ui,-apple-system,sans-serif;
  font-size:16.5px;
  line-height:1.9;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .2s ease;}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--lime);outline-offset:2px;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
button{font-family:inherit;cursor:pointer;border:0;background:none;}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 32px;
}
.tnum{font-variant-numeric:tabular-nums;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:12px 26px;
  border-radius:999px;
  font-size:15px;
  font-weight:600;
  letter-spacing:.01em;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,color .22s ease,border-color .22s ease;
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,var(--orange),var(--orange-deep));
  color:#fff;
  box-shadow:0 14px 30px -16px rgba(217,73,15,.75);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 20px 36px -16px rgba(217,73,15,.85);filter:brightness(1.06);color:#fff;}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{
  background:#fff;
  color:var(--orange-deep);
  border:1.5px solid var(--orange);
}
.btn-ghost:hover{background:var(--orange-soft);transform:translateY(-2px);color:var(--orange-deep);}
.btn-outline-light{
  background:transparent;
  color:#fff;
  border:1.5px solid rgba(255,255,255,.7);
}
.btn-outline-light:hover{background:rgba(255,255,255,.12);color:#fff;transform:translateY(-2px);}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(251,250,255,.88);
  border-bottom:1px solid transparent;
  transition:background .28s ease,box-shadow .28s ease,border-color .28s ease;
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.9);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom-color:var(--line);
  box-shadow:0 12px 30px -26px rgba(43,27,99,.6);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:72px;
}
.logo{display:inline-flex;align-items:center;gap:10px;}
.logo-mark{
  width:38px;height:38px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:12px;
  background:linear-gradient(135deg,var(--orange),var(--orange-deep));
  box-shadow:0 10px 22px -12px rgba(217,73,15,.9);
  flex:0 0 auto;
}
.logo-mark svg{width:21px;height:21px;fill:#fff;}
.logo-text{display:flex;flex-direction:column;line-height:1.15;}
.logo-text b{font-size:17px;font-weight:700;letter-spacing:.02em;color:var(--ink);}
.logo-text span{font-size:11.5px;letter-spacing:.16em;color:var(--ink-2);}
.main-nav{display:flex;align-items:center;gap:4px;}
.nav-link{
  position:relative;
  padding:9px 13px;
  border-radius:999px;
  font-size:15px;
  color:var(--ink-2);
  font-weight:500;
  transition:color .2s ease,background .2s ease;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:13px;right:13px;bottom:2px;
  height:2px;
  border-radius:2px;
  background:var(--orange);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .24s ease;
}
.nav-link:hover{color:var(--orange-deep);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{background:var(--orange-soft);color:var(--orange-deep);font-weight:600;}
.nav-link.active::after{transform:scaleX(0);}
.nav-cta{margin-left:12px;padding:11px 22px;font-size:14.5px;}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:12px;
  border:1px solid var(--line);
  background:#fff;
  align-items:center;justify-content:center;
  flex-direction:column;
  gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:.25s;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}

/* ---------- reading progress ---------- */
.reading-bar{
  position:fixed;
  top:72px;left:0;
  height:3px;width:0;
  background:linear-gradient(90deg,var(--orange),var(--lime));
  z-index:79;
  transition:width .1s linear;
}

/* ---------- post hero ---------- */
.post-hero{
  position:relative;
  padding:64px 0 132px;
  color:#fff;
  background:
    radial-gradient(circle at 82% 18%,rgba(200,245,91,.14) 0,rgba(200,245,91,0) 42%),
    radial-gradient(circle at 12% 82%,rgba(255,106,43,.20) 0,rgba(255,106,43,0) 46%),
    linear-gradient(135deg,var(--purple-1),var(--purple-2));
  overflow:hidden;
}
.post-hero::before{
  content:"";
  position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-1.png");
  background-size:cover;
  background-position:center;
  opacity:.14;
  mix-blend-mode:screen;
  pointer-events:none;
}
.post-hero .container{position:relative;z-index:2;}
.crumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13.5px;
  color:rgba(255,255,255,.72);
  margin-bottom:28px;
}
.crumbs a{color:rgba(255,255,255,.82);}
.crumbs a:hover{color:var(--lime);}
.crumbs .sep{color:rgba(255,255,255,.38);}
.crumbs .current{color:#fff;}
.post-cat-pill{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 16px;
  border-radius:999px;
  background:rgba(200,245,91,.16);
  border:1px solid rgba(200,245,91,.45);
  color:var(--lime);
  font-size:13px;
  font-weight:600;
  letter-spacing:.04em;
  margin-bottom:20px;
}
.post-cat-pill i{width:6px;height:6px;border-radius:50%;background:var(--lime);display:inline-block;}
.post-title{
  font-size:clamp(28px,3.6vw,46px);
  line-height:1.32;
  font-weight:700;
  letter-spacing:-.01em;
  max-width:900px;
  color:#fff;
}
.post-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px 22px;
  margin-top:26px;
  font-size:14px;
  color:rgba(255,255,255,.7);
}
.post-meta .dot{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.4);display:inline-block;}
.post-meta strong{color:#fff;font-weight:600;}

/* ---------- article shell ---------- */
.post-main{padding:0 0 96px;background:var(--paper);}
.article-shell{
  position:relative;
  z-index:3;
  margin-top:-84px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow);
  padding:56px 64px 44px;
  max-width:900px;
  margin-left:auto;
  margin-right:auto;
}
.article-body{
  max-width:760px;
  margin:0 auto;
  font-size:17px;
  line-height:1.95;
  color:var(--ink);
}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 20px;color:var(--ink);}
.article-body h2{
  position:relative;
  font-size:29px;
  line-height:1.42;
  font-weight:700;
  letter-spacing:-.01em;
  margin:48px 0 18px;
  padding-left:18px;
}
.article-body h2::before{
  content:"";
  position:absolute;
  left:0;top:.3em;
  width:4px;height:1em;
  border-radius:3px;
  background:linear-gradient(180deg,var(--orange),var(--orange-deep));
}
.article-body h3{
  position:relative;
  font-size:21px;
  line-height:1.5;
  font-weight:600;
  margin:34px 0 14px;
  padding-left:16px;
}
.article-body h3::before{
  content:"";
  position:absolute;
  left:0;top:.32em;
  width:3px;height:1.05em;
  border-radius:3px;
  background:var(--purple-2);
}
.article-body h4{font-size:18px;font-weight:600;margin:26px 0 12px;}
.article-body a{color:var(--orange-deep);border-bottom:1px solid rgba(217,73,15,.32);}
.article-body a:hover{color:var(--orange);border-bottom-color:var(--orange);}
.article-body ul,.article-body ol{margin:0 0 22px;padding-left:22px;}
.article-body ul{list-style:none;padding-left:0;}
.article-body ul li{
  position:relative;
  padding-left:22px;
  margin-bottom:10px;
}
.article-body ul li::before{
  content:"";
  position:absolute;
  left:2px;top:.78em;
  width:7px;height:7px;
  border-radius:2px;
  background:var(--orange);
  transform:rotate(45deg);
}
.article-body ol{list-style:decimal;}
.article-body ol li{margin-bottom:10px;padding-left:4px;}
.article-body ol li::marker{color:var(--purple-2);font-weight:700;}
.article-body blockquote{
  margin:28px 0;
  padding:22px 26px;
  background:linear-gradient(135deg,rgba(108,75,224,.07),rgba(255,106,43,.06));
  border-left:4px solid var(--orange);
  border-radius:0 var(--r-sm) var(--r-sm) 0;
  color:var(--ink-2);
  font-size:16.5px;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{
  border-radius:var(--r-sm);
  margin:26px auto;
  box-shadow:var(--shadow);
}
.article-body figure{margin:26px 0;}
.article-body figcaption{
  font-size:13.5px;
  color:var(--ink-3);
  text-align:center;
  margin-top:10px;
}
.article-body code{
  background:#F3F0FE;
  color:var(--purple-1);
  padding:2px 7px;
  border-radius:6px;
  font-size:14.5px;
  font-family:"SFMono-Regular",Consolas,"Liberation Mono",monospace;
}
.article-body pre{
  background:#F7F5FF;
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  padding:20px 22px;
  overflow-x:auto;
  margin:24px 0;
  font-size:14.5px;
  line-height:1.75;
}
.article-body pre code{background:none;padding:0;color:var(--ink);}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15.5px;}
.article-body th,.article-body td{border:1px solid var(--line);padding:12px 14px;text-align:left;}
.article-body th{background:#F7F5FF;font-weight:600;}
.article-body hr{border:0;border-top:1px solid var(--line);margin:36px 0;}

/* ---------- empty state ---------- */
.empty-state{
  text-align:center;
  padding:56px 20px;
  border:1px dashed var(--line);
  border-radius:var(--r-md);
  background:#FCFBFF;
}
.empty-state .empty-mark{
  width:64px;height:64px;
  margin:0 auto 18px;
  border-radius:18px;
  background:linear-gradient(135deg,rgba(255,106,43,.14),rgba(108,75,224,.14));
  display:flex;align-items:center;justify-content:center;
}
.empty-state .empty-mark svg{width:26px;height:26px;fill:var(--orange);}
.empty-state h2{font-size:22px;font-weight:700;margin-bottom:10px;}
.empty-state p{color:var(--ink-2);font-size:15.5px;margin-bottom:22px;}

/* ---------- tags & back ---------- */
.post-foot{
  max-width:760px;
  margin:44px auto 0;
  padding-top:30px;
  border-top:1px solid var(--line);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:20px;
}
.post-tags{display:flex;flex-wrap:wrap;gap:10px;}
.tag{
  display:inline-flex;
  align-items:center;
  padding:6px 15px;
  border-radius:999px;
  background:#F5F2FF;
  color:var(--purple-1);
  font-size:13.5px;
  border:1px solid var(--line);
  transition:.2s ease;
}
.tag:hover{background:var(--orange-soft);color:var(--orange-deep);border-color:rgba(255,106,43,.4);}
.back-home{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14.5px;
  font-weight:600;
  color:var(--orange-deep);
}
.back-home:hover{color:var(--orange);}

/* ---------- related ---------- */
.related{padding:0 0 96px;background:var(--paper);}
.section-head{margin-bottom:38px;max-width:680px;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:600;
  letter-spacing:.12em;
  color:var(--orange-deep);
  text-transform:uppercase;
  margin-bottom:12px;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--orange);}
.section-head h2{
  font-size:clamp(24px,2.6vw,32px);
  font-weight:700;
  letter-spacing:-.01em;
  line-height:1.35;
}
.section-head p{margin-top:12px;color:var(--ink-2);font-size:16px;}
.card-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.post-card{
  display:flex;
  flex-direction:column;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;
  box-shadow:var(--shadow);
  transition:transform .26s ease,box-shadow .26s ease,border-color .26s ease;
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(255,106,43,.4);}
.post-card .thumb{
  position:relative;
  aspect-ratio:16/9;
  overflow:hidden;
  background:#EFECFA;
}
.post-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.post-card:hover .thumb img{transform:scale(1.04);}
.post-card .body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.post-card .cat{
  align-self:flex-start;
  font-size:12.5px;
  font-weight:600;
  color:var(--purple-1);
  background:#F1EDFF;
  border-radius:999px;
  padding:4px 12px;
}
.post-card h3{
  font-size:17.5px;
  line-height:1.55;
  font-weight:600;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.post-card:hover h3{color:var(--orange-deep);}
.post-card .desc{
  font-size:14.5px;
  color:var(--ink-2);
  line-height:1.8;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.post-card .meta{
  margin-top:auto;
  padding-top:12px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:13px;
  color:var(--ink-3);
  border-top:1px solid var(--line);
}
.post-card .meta .more{color:var(--orange-deep);font-weight:600;}

/* ---------- cta band ---------- */
.cta-band{padding:0 0 104px;background:var(--paper);}
.cta-inner{
  position:relative;
  border-radius:28px;
  overflow:hidden;
  padding:64px 60px;
  color:#fff;
  background:
    radial-gradient(circle at 88% 22%,rgba(200,245,91,.18) 0,rgba(200,245,91,0) 44%),
    linear-gradient(135deg,#120E24,#2B1B63 62%,#3A2478);
}
.cta-inner::before{
  content:"";
  position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.png");
  background-size:cover;
  background-position:center;
  opacity:.2;
  mix-blend-mode:screen;
}
.cta-inner .cta-content{position:relative;z-index:2;max-width:640px;}
.cta-inner h2{
  font-size:clamp(24px,2.8vw,34px);
  font-weight:700;
  line-height:1.36;
  letter-spacing:-.01em;
}
.cta-inner p{margin-top:14px;color:rgba(255,255,255,.78);font-size:16px;line-height:1.85;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}

/* ---------- footer ---------- */
.site-footer{
  position:relative;
  background:var(--dark);
  color:rgba(255,255,255,.72);
  padding:72px 0 0;
  overflow:hidden;
}
.site-footer::before{
  content:"";
  position:absolute;inset:0;
  background-image:
    radial-gradient(circle at 20% 20%,rgba(200,245,91,.10) 0,rgba(200,245,91,0) 38%),
    radial-gradient(circle at 78% 12%,rgba(255,106,43,.12) 0,rgba(255,106,43,0) 40%);
  pointer-events:none;
}
.site-footer .container{position:relative;z-index:2;}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.3fr;
  gap:44px;
  padding-bottom:52px;
}
.footer-brand .logo-text b{color:#fff;}
.footer-brand .logo-text span{color:rgba(255,255,255,.55);}
.footer-brand p{
  margin-top:18px;
  font-size:14.5px;
  line-height:1.9;
  color:rgba(255,255,255,.62);
  max-width:340px;
}
.footer-col h3{
  font-size:15px;
  font-weight:600;
  color:#fff;
  margin-bottom:18px;
}
.footer-col ul li{margin-bottom:11px;}
.footer-col ul li a{font-size:14px;color:rgba(255,255,255,.62);}
.footer-col ul li a:hover{color:var(--lime);}
.footer-note{
  font-size:13.5px;
  line-height:1.9;
  color:rgba(255,255,255,.6);
  border:1px solid rgba(255,255,255,.12);
  border-radius:var(--r-sm);
  padding:18px 20px;
  background:rgba(255,255,255,.04);
}
.footer-note b{display:block;color:var(--lime);font-size:13.5px;margin-bottom:6px;}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:22px 0 28px;
  border-top:1px solid rgba(255,255,255,.1);
  font-size:13px;
  color:rgba(255,255,255,.48);
}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .article-shell{padding:48px 44px 40px;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:36px;}
  .footer-note-col{grid-column:1 / -1;}
}
@media (max-width:991px){
  .container{padding:0 24px;}
  .nav-toggle{display:flex;}
  .main-nav{
    position:fixed;
    left:0;right:0;top:72px;bottom:0;
    background:#fff;
    flex-direction:column;
    align-items:stretch;
    gap:4px;
    padding:20px 24px 40px;
    border-top:1px solid var(--line);
    transform:translateY(-12px);
    opacity:0;
    pointer-events:none;
    transition:opacity .24s ease,transform .24s ease;
    overflow-y:auto;
  }
  .main-nav.is-open{opacity:1;transform:none;pointer-events:auto;}
  .nav-link{padding:15px 16px;font-size:17px;border-bottom:1px solid var(--line);border-radius:12px;}
  .nav-link::after{display:none;}
  .nav-cta{margin:20px 0 0;width:100%;min-height:48px;font-size:16px;}
  .post-hero{padding:44px 0 120px;}
  .article-shell{margin-top:-72px;padding:40px 30px 34px;border-radius:20px;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-inner{padding:48px 34px;border-radius:22px;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;}
  .related,.cta-band{padding-bottom:72px;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .container{padding:0 16px;}
  .post-hero{padding:32px 0 104px;}
  .post-title{font-size:26px;}
  .post-meta{font-size:13px;gap:8px 14px;}
  .article-shell{margin-top:-64px;padding:32px 20px 28px;border-radius:18px;}
  .article-body{font-size:16px;line-height:1.95;}
  .article-body h2{font-size:23px;margin-top:38px;}
  .article-body h3{font-size:19px;}
  .card-grid{grid-template-columns:1fr;}
  .post-foot{flex-direction:column;align-items:flex-start;gap:18px;}
  .cta-inner{padding:38px 22px;border-radius:18px;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:36px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;font-size:12.5px;}
  .related,.cta-band{padding-bottom:56px;}
  .site-footer{padding-top:52px;}
  .reading-bar{top:64px;}
  .header-inner{height:64px;}
  .main-nav{top:64px;}
}
@media (max-width:479px){
  .post-cat-pill{font-size:12px;padding:5px 13px;}
  .tag{font-size:12.5px;padding:5px 12px;}
  .logo-text b{font-size:15.5px;}
  .logo-text span{font-size:10.5px;letter-spacing:.1em;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
}

/* roulang page: category1 */
:root{
  --orange:#FF6A2B;
  --orange-deep:#D9490F;
  --orange-soft:#FFF1E9;
  --purple:#2B1B63;
  --purple-2:#6C4BE0;
  --lime:#C8F55B;
  --night:#120E24;
  --bg:#FBFAFF;
  --card:#FFFFFF;
  --line:#E7E3F2;
  --ink:#1B1633;
  --muted:#5F5A78;
  --radius-lg:24px;
  --radius-md:18px;
  --radius-sm:14px;
  --shadow:0 18px 40px -24px rgba(43,27,99,.35);
  --shadow-hover:0 24px 48px -24px rgba(43,27,99,.45);
  --ease:cubic-bezier(.22,.61,.36,1);
  --font-cn:"HarmonyOS Sans","PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,sans-serif;
  --font-num:"Barlow Semi Condensed","Inter","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16.5px;
  line-height:1.9;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--lime);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums;letter-spacing:.01em}

/* ============ Header ============ */
.site-header{
  position:sticky;top:0;z-index:120;
  background:rgba(251,250,255,.94);
  border-bottom:1px solid var(--line);
  transition:background .3s var(--ease),box-shadow .3s var(--ease),backdrop-filter .3s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.82);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  box-shadow:0 10px 30px -22px rgba(43,27,99,.6);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--purple),var(--purple-2));
  box-shadow:0 10px 22px -14px rgba(43,27,99,.9);
}
.logo-mark svg{width:20px;height:20px;fill:var(--lime)}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-text b{font-size:17px;font-weight:700;letter-spacing:-.01em}
.logo-text span{font-size:11.5px;color:var(--muted);letter-spacing:.14em}
.main-nav{display:flex;align-items:center;gap:4px}
.nav-link{
  display:inline-flex;align-items:center;height:40px;padding:0 12px;border-radius:999px;
  font-size:15px;color:var(--muted);white-space:nowrap;
  transition:color .22s var(--ease),background .22s var(--ease);
}
.nav-link:hover{color:var(--orange);background:var(--orange-soft)}
.nav-link.active{color:var(--orange);background:var(--orange-soft);font-weight:600}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:999px;border:1.5px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.btn-primary{
  background:linear-gradient(135deg,var(--orange),var(--orange-deep));
  color:#fff;box-shadow:0 16px 32px -20px rgba(217,73,15,.95);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 22px 38px -20px rgba(217,73,15,1);filter:brightness(1.06)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:#fff;color:var(--orange);border-color:var(--orange)}
.btn-ghost:hover{background:var(--orange-soft);transform:translateY(-2px)}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.65)}
.btn-outline-light:hover{background:rgba(255,255,255,.14);transform:translateY(-2px)}
.nav-cta{margin-left:10px}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:12px;
  background:#fff;align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle span{position:relative;display:block;width:18px;height:2px;background:var(--ink);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);
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-toggle.is-open span{background:transparent}
.nav-toggle.is-open span::before{transform:translateY(6px) rotate(45deg)}
.nav-toggle.is-open span::after{transform:translateY(-6px) rotate(-45deg)}

/* ============ Hero ============ */
.page-hero{
  position:relative;overflow:hidden;color:#fff;
  background:linear-gradient(135deg,#2B1B63 0%,#4A2EA8 52%,#6C4BE0 100%);
  padding:56px 0 72px;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-1.png);
  background-size:cover;background-position:center;
  opacity:.2;mix-blend-mode:luminosity;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(circle at 12% 18%,rgba(200,245,91,.12),transparent 42%),
    radial-gradient(circle at 88% 8%,rgba(255,106,43,.14),transparent 40%),
    radial-gradient(circle at 70% 92%,rgba(108,75,224,.35),transparent 55%);
  pointer-events:none;
}
.hero-inner{position:relative;z-index:2;max-width:940px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:rgba(255,255,255,.72);margin-bottom:22px}
.breadcrumb a{color:rgba(255,255,255,.86)}
.breadcrumb a:hover{color:var(--lime)}
.breadcrumb .sep{opacity:.55}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
  background:rgba(200,245,91,.16);border:1px solid rgba(200,245,91,.45);
  color:var(--lime);font-size:13px;font-weight:600;letter-spacing:.06em;margin-bottom:20px;
}
.page-hero h1{
  font-size:clamp(30px,4.4vw,48px);line-height:1.28;font-weight:700;letter-spacing:-.02em;
  margin-bottom:18px;text-wrap:balance;
}
.page-hero h1 .hl{color:var(--lime)}
.hero-sub{font-size:17px;line-height:1.85;color:rgba(255,255,255,.86);max-width:700px;margin-bottom:32px}

.dl-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:12px;max-width:820px}
.dl-btn{
  display:flex;flex-direction:column;align-items:flex-start;gap:2px;
  min-height:66px;padding:12px 16px;border-radius:var(--radius-sm);
  border:1px solid rgba(255,255,255,.32);background:rgba(255,255,255,.09);color:#fff;
  transition:transform .22s var(--ease),background .22s var(--ease),border-color .22s var(--ease);
}
.dl-btn:hover{transform:translateY(-3px);background:rgba(255,255,255,.18);border-color:rgba(255,255,255,.7)}
.dl-btn b{font-size:15px;font-weight:600;line-height:1.4}
.dl-btn em{font-style:normal;font-size:12.5px;color:rgba(255,255,255,.7);line-height:1.4}
.dl-btn--primary{
  background:linear-gradient(135deg,var(--orange),var(--orange-deep));
  border-color:transparent;box-shadow:0 18px 36px -20px rgba(255,106,43,.95);
}
.dl-btn--primary em{color:rgba(255,255,255,.85)}

.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.hero-badge{
  display:inline-flex;align-items:baseline;gap:7px;
  padding:7px 15px;border-radius:999px;background:rgba(200,245,91,.14);
  border:1px solid rgba(200,245,91,.38);color:var(--lime);font-size:13px;
}
.hero-badge b{font-size:16px;font-weight:700;color:#fff}

/* ============ 通用板块 ============ */
.section{padding:96px 0}
.section--tight{padding:72px 0}
.section--alt{background:#F4F1FC}
.section-head{max-width:740px;margin-bottom:46px}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-size:13px;font-weight:700;letter-spacing:.14em;color:var(--orange);text-transform:uppercase;
}
.eyebrow::before{content:"";width:22px;height:3px;border-radius:2px;background:var(--orange)}
.section-head h2{font-size:clamp(24px,3vw,34px);line-height:1.35;font-weight:700;letter-spacing:-.015em;margin:14px 0 12px}
.section-head p{color:var(--muted);font-size:16px}

/* 版本卡片 */
.version-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.version-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-md);
  padding:26px 26px 24px;box-shadow:var(--shadow);
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.version-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(255,106,43,.3)}
.version-card .v-label{font-size:13.5px;color:var(--muted);letter-spacing:.04em}
.version-card .v-value{
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:34px;font-weight:700;line-height:1.3;letter-spacing:-.02em;color:var(--ink);
  margin-top:6px;
}
.version-card .v-value small{font-size:15px;font-weight:600;color:var(--muted);margin-left:4px}
.version-card .v-note{font-size:13.5px;color:var(--muted);margin-top:8px}

/* 卖点 2+1 错位 */
.feature-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.feature-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:34px 32px;box-shadow:var(--shadow);
  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:rgba(255,106,43,.3)}
.feature-icon{
  width:56px;height:56px;border-radius:16px;display:grid;place-items:center;margin-bottom:20px;
  background:linear-gradient(135deg,var(--orange),var(--orange-deep));
}
.feature-icon svg{width:26px;height:26px;stroke:#fff;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.feature-card h3{font-size:21px;font-weight:600;line-height:1.45;margin-bottom:10px}
.feature-card p{color:var(--muted);font-size:15.5px;line-height:1.85}
.feature-card--wide{
  grid-column:1 / -1;display:grid;grid-template-columns:1.1fr .9fr;gap:34px;align-items:center;
  background:linear-gradient(135deg,#2B1B63,#5B3FD0);border-color:transparent;color:#fff;
}
.feature-card--wide h3{color:#fff}
.feature-card--wide p{color:rgba(255,255,255,.8)}
.feature-card--wide .feature-icon{background:rgba(200,245,91,.18);border:1px solid rgba(200,245,91,.4)}
.feature-card--wide .feature-icon svg{stroke:var(--lime)}
.feature-figure{border-radius:var(--radius-sm);overflow:hidden;border:1px solid rgba(255,255,255,.22)}
.feature-figure img{width:100%;aspect-ratio:16/9;object-fit:cover}

/* 步骤流程 */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.step{
  position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--radius-md);
  padding:28px 24px 26px;transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:rgba(255,106,43,.3)}
.step-num{
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:38px;font-weight:700;line-height:1;color:var(--lime);
  -webkit-text-stroke:.5px rgba(43,27,99,.16);
}
.step h3{font-size:17px;font-weight:600;margin:14px 0 8px}
.step p{font-size:14.5px;color:var(--muted);line-height:1.8}

/* 系统要求卡片行 */
.spec-rows{display:grid;gap:16px}
.spec-row{
  display:grid;grid-template-columns:220px 1fr;gap:24px;align-items:center;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-md);
  padding:22px 26px;transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.spec-row:hover{border-color:rgba(255,106,43,.35);box-shadow:var(--shadow)}
.spec-os{display:flex;align-items:center;gap:14px}
.spec-os .os-icon{
  width:44px;height:44px;border-radius:13px;display:grid;place-items:center;flex:0 0 auto;
  background:linear-gradient(135deg,rgba(43,27,99,.92),rgba(108,75,224,.92));
}
.spec-os .os-icon svg{width:22px;height:22px;stroke:#fff;fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.spec-os b{display:block;font-size:16px;font-weight:600;line-height:1.4}
.spec-os span{display:block;font-size:13px;color:var(--muted)}
.spec-cols{display:grid;grid-template-columns:1fr 1fr;gap:0}
.spec-cols > div{padding:0 20px}
.spec-cols > div:first-child{padding-left:0;border-right:1px solid var(--line)}
.spec-label{display:block;font-size:12.5px;font-weight:700;letter-spacing:.1em;color:var(--orange);margin-bottom:6px}
.spec-cols p{font-size:14.5px;color:var(--muted);line-height:1.75;font-family:var(--font-num);font-variant-numeric:tabular-nums}
.spec-cols p span{font-family:var(--font-cn);color:var(--ink)}

/* 更新时间线 */
.timeline{position:relative;margin-left:6px;padding-left:30px;border-left:2px solid var(--line);display:grid;gap:30px}
.timeline-item{position:relative}
.timeline-item::before{
  content:"";position:absolute;left:-37px;top:9px;width:12px;height:12px;border-radius:50%;
  background:var(--orange);box-shadow:0 0 0 4px rgba(255,106,43,.16);
}
.timeline-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:8px}
.timeline-ver{
  font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:16px;font-weight:700;
  color:var(--ink);background:var(--orange-soft);border-radius:999px;padding:3px 12px;
}
.timeline-date{font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:13.5px;color:var(--muted)}
.timeline-item h3{font-size:17px;font-weight:600;margin-bottom:8px}
.timeline-item ul{display:grid;gap:6px}
.timeline-item li{position:relative;padding-left:18px;font-size:15px;color:var(--muted);line-height:1.8}
.timeline-item li::before{content:"";position:absolute;left:0;top:12px;width:6px;height:6px;border-radius:2px;background:var(--lime)}

/* 图文块 */
.media-block{display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:center}
.media-block--reverse .media-figure{order:2}
.media-figure{border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--line)}
.media-figure img{width:100%;aspect-ratio:16/10;object-fit:cover}
.media-copy h2{font-size:clamp(23px,2.6vw,30px);line-height:1.4;letter-spacing:-.015em;margin-bottom:16px}
.media-copy p{color:var(--muted);margin-bottom:18px}
.check-list{display:grid;gap:12px}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:15.5px;line-height:1.8}
.check-list li::before{
  content:"";flex:0 0 auto;margin-top:8px;width:16px;height:16px;border-radius:5px;
  background:var(--lime);
  -webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M4 12.5l5 5L20 6.5' fill='none' stroke='%23000' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/14px no-repeat,
    linear-gradient(var(--lime),var(--lime));
  mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M4 12.5l5 5L20 6.5' fill='none' stroke='%23000' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/14px no-repeat,
    linear-gradient(var(--lime),var(--lime));
}

/* 提示卡 */
.tip-card{
  background:var(--orange-soft);border:1px solid rgba(255,106,43,.28);
  border-left:4px solid var(--orange);border-radius:var(--radius-md);
  padding:26px 28px;
}
.tip-card h3{font-size:18px;font-weight:600;margin-bottom:10px;color:var(--ink)}
.tip-card p{font-size:15px;color:#7A4630;line-height:1.85}

/* FAQ */
.faq-list{max-width:860px}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-left:4px solid transparent;
  border-radius:var(--radius-md);margin-bottom:14px;overflow:hidden;
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.faq-item:hover{border-color:rgba(255,106,43,.28);border-left-color:rgba(255,106,43,.4)}
.faq-item[open]{border-left-color:var(--orange);box-shadow:var(--shadow)}
.faq-item summary{
  list-style:none;cursor:pointer;position:relative;
  padding:20px 58px 20px 24px;font-size:16px;font-weight:600;line-height:1.65;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"";position:absolute;right:26px;top:26px;width:9px;height:9px;
  border-right:2px solid var(--muted);border-bottom:2px solid var(--muted);
  transform:rotate(45deg);transition:transform .28s var(--ease);
}
.faq-item[open] summary::after{transform:rotate(-135deg)}
.faq-answer{padding:0 26px 24px;font-size:15.5px;line-height:1.85;color:var(--muted);animation:fadeIn .32s var(--ease)}
@keyframes fadeIn{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:none}}

/* CTA 带 */
.cta-band{position:relative;overflow:hidden;background:var(--night);color:#fff;padding:76px 0}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(circle at 14% 24%,rgba(200,245,91,.1),transparent 46%),
    radial-gradient(circle at 82% 76%,rgba(255,106,43,.14),transparent 46%);
}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap}
.cta-copy{max-width:620px}
.cta-copy h2{font-size:clamp(24px,3vw,32px);line-height:1.35;letter-spacing:-.015em;margin-bottom:12px}
.cta-copy p{color:rgba(255,255,255,.72);font-size:15.5px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* Footer */
.site-footer{background:var(--night);color:#fff;padding:72px 0 0;position:relative;overflow:hidden}
.site-footer::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(circle at 78% 12%,rgba(108,75,224,.28),transparent 52%);
  pointer-events:none;
}
.footer-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand .logo{margin-bottom:18px}
.footer-brand .logo-text b{color:#fff}
.footer-brand .logo-text span{color:rgba(255,255,255,.55)}
.footer-brand p{font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.6);max-width:340px}
.footer-col h3{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.62);transition:color .2s var(--ease)}
.footer-col a:hover{color:var(--lime)}
.footer-note{font-size:13.5px;line-height:1.85;color:rgba(255,255,255,.58)}
.footer-note b{display:block;color:var(--lime);font-size:15px;margin-bottom:10px;font-weight:600}
.footer-bottom{
  position:relative;z-index:2;margin-top:52px;padding:22px 0;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .nav-link{padding:0 9px;font-size:14.5px}
  .container{padding:0 26px}
}
@media (max-width:991px){
  .nav-toggle{display:inline-flex}
  .main-nav{
    position:fixed;top:72px;left:0;right:0;bottom:0;
    flex-direction:column;align-items:stretch;gap:6px;
    padding:24px 26px 40px;background:#fff;
    border-top:1px solid var(--line);
    transform:translateY(-10px);opacity:0;pointer-events:none;visibility:hidden;
    transition:opacity .26s var(--ease),transform .26s var(--ease),visibility .26s;
    overflow-y:auto;
  }
  .main-nav.is-open{transform:none;opacity:1;pointer-events:auto;visibility:visible}
  .nav-link{height:52px;padding:0 18px;font-size:16px;border-radius:14px}
  .nav-cta{margin:14px 0 0;width:100%;height:48px}
  .section{padding:72px 0}
  .section--tight{padding:56px 0}
  .dl-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
  .version-cards{grid-template-columns:1fr 1fr}
  .feature-grid{grid-template-columns:1fr}
  .feature-card--wide{grid-template-columns:1fr;gap:24px}
  .steps{grid-template-columns:1fr 1fr}
  .spec-row{grid-template-columns:1fr;gap:18px}
  .spec-cols > div:first-child{border-right:none}
  .spec-cols{grid-template-columns:1fr 1fr;gap:0}
  .media-block{grid-template-columns:1fr;gap:32px}
  .media-block--reverse .media-figure{order:0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  body{font-size:16px}
  .container{padding:0 18px}
  .header-inner{height:66px}
  .main-nav{top:66px;padding:20px 18px 36px}
  .logo-text b{font-size:15.5px}
  .logo-text span{font-size:10.5px;letter-spacing:.1em}
  .page-hero{padding:40px 0 56px}
  .hero-sub{font-size:15.5px}
  .dl-grid{grid-template-columns:1fr 1fr;gap:10px}
  .dl-btn{padding:11px 14px;min-height:62px}
  .hero-badge{font-size:12px;padding:6px 12px}
  .hero-badge b{font-size:14px}
  .version-cards{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .spec-cols{grid-template-columns:1fr;gap:14px}
  .spec-cols > div{padding:0}
  .section{padding:56px 0}
  .section--tight{padding:48px 0}
  .feature-card{padding:26px 22px}
  .media-figure img{aspect-ratio:16/11}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:8px}
  .faq-item summary{padding:18px 48px 18px 18px;font-size:15.5px}
  .faq-answer{padding:0 18px 20px}
}
@media (max-width:479px){
  .page-hero h1{font-size:27px}
  .dl-grid{grid-template-columns:1fr}
  .dl-btn{min-height:56px}
  .timeline{padding-left:22px}
  .timeline-item::before{left:-29px}
  .btn{width:100%}
  .nav-toggle{width:42px;height:42px}
}

/* roulang page: category2 */
:root{
  --orange:#FF6A2B;
  --orange-deep:#D9490F;
  --orange-soft:#FFF1E9;
  --purple:#2B1B63;
  --purple-2:#6C4BE0;
  --lime:#C8F55B;
  --night:#120E24;
  --bg:#FBFAFF;
  --card:#FFFFFF;
  --line:#E7E3F2;
  --text:#1B1633;
  --muted:#5F5A78;
  --radius-lg:24px;
  --radius-md:18px;
  --radius-sm:14px;
  --shadow:0 18px 40px -24px rgba(43,27,99,.35);
  --shadow-hover:0 24px 48px -24px rgba(43,27,99,.45);
  --section:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  padding-top:72px;
  background:var(--bg);
  color:var(--text);
  font-family:"HarmonyOS Sans","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16.5px;
  line-height:1.9;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:var(--purple-2);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--orange-deep)}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;line-height:1.25;letter-spacing:-.01em;font-weight:700}
p{margin:0 0 18px}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--lime);outline-offset:3px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:11px 24px;border-radius:999px;
  font-size:15px;font-weight:600;line-height:1.2;letter-spacing:.01em;
  cursor:pointer;border:1.5px solid transparent;
  transition:transform .18s ease,box-shadow .22s ease,background .22s ease,color .22s ease,border-color .22s ease;
  text-align:center;
}
.btn svg{width:16px;height:16px;flex:none}
.btn-primary{
  color:#fff;background:linear-gradient(135deg,var(--orange) 0%,var(--orange-deep) 100%);
  box-shadow:0 12px 26px -16px rgba(255,106,43,.9);
}
.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 18px 32px -16px rgba(255,106,43,.95);filter:brightness(1.06)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{color:var(--orange-deep);background:#fff;border-color:var(--orange)}
.btn-ghost:hover{background:var(--orange-soft);color:var(--orange-deep);transform:translateY(-2px)}
.btn-light{color:#fff;background:transparent;border-color:rgba(255,255,255,.7)}
.btn-light:hover{background:rgba(255,255,255,.12);color:#fff;transform:translateY(-2px)}
.btn-solid-light{background:#fff;color:var(--purple);border-color:#fff}
.btn-solid-light:hover{background:#fff;color:var(--orange-deep);transform:translateY(-2px)}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:200;
  background:rgba(251,250,255,.94);
  border-bottom:1px solid transparent;
  transition:background .25s ease,box-shadow .25s ease,border-color .25s ease,backdrop-filter .25s ease;
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.86);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom-color:var(--line);
  box-shadow:0 10px 30px -24px rgba(43,27,99,.55);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--text);flex:none}
.logo:hover{color:var(--text)}
.logo-mark{
  width:38px;height:38px;flex:none;border-radius:12px;
  background:linear-gradient(135deg,var(--purple) 0%,var(--purple-2) 100%);
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:0 8px 18px -12px rgba(43,27,99,.9);
}
.logo-mark svg{width:20px;height:20px;fill:var(--lime)}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-text b{font-size:16px;font-weight:700;letter-spacing:.02em}
.logo-text span{font-size:11.5px;color:var(--muted);letter-spacing:.16em}
.main-nav{display:flex;align-items:center;gap:2px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  padding:9px 13px;border-radius:999px;
  font-size:14.5px;font-weight:500;color:var(--muted);
  transition:color .2s ease,background .2s ease;
}
.nav-link:hover{color:var(--orange-deep);background:rgba(255,106,43,.07)}
.nav-link.active{color:var(--orange-deep);background:var(--orange-soft);font-weight:600}
.nav-cta{margin-left:12px;padding:10px 20px;font-size:14.5px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:#fff;cursor:pointer;align-items:center;justify-content:center;position:relative;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after{
  content:"";display:block;width:20px;height:2px;background:var(--text);border-radius:2px;
  transition:transform .25s ease,opacity .2s ease;
}
.nav-toggle span::before{position:absolute;top:-6px}
.nav-toggle span::after{position:absolute;top:6px}
.nav-toggle span{position:relative}
.nav-toggle.is-open span{background:transparent}
.nav-toggle.is-open span::before{transform:translateY(6px) rotate(45deg)}
.nav-toggle.is-open span::after{transform:translateY(-6px) rotate(-45deg)}

/* ---------- 首屏 ---------- */
.page-hero{
  position:relative;overflow:hidden;
  padding:44px 0 84px;
  background:linear-gradient(135deg,#2B1B63 0%,#4B2FA8 52%,#6C4BE0 100%);
  color:#fff;
}
.page-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    radial-gradient(circle at 12% 22%,rgba(200,245,91,.14) 0 2px,transparent 3px),
    radial-gradient(circle at 68% 14%,rgba(255,255,255,.12) 0 1.6px,transparent 3px),
    radial-gradient(circle at 84% 62%,rgba(255,106,43,.16) 0 2px,transparent 3px),
    radial-gradient(circle at 32% 78%,rgba(255,255,255,.1) 0 1.6px,transparent 3px),
    radial-gradient(circle at 52% 42%,rgba(200,245,91,.1) 0 1.4px,transparent 3px);
  background-size:auto,auto,auto,auto,auto;
  opacity:.85;
}
.page-hero::after{
  content:"";position:absolute;right:-160px;top:-120px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,106,43,.28) 0%,rgba(255,106,43,0) 68%);
  pointer-events:none;
}
.hero-inner{position:relative;z-index:2}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:rgba(255,255,255,.7);margin-bottom:34px}
.breadcrumb a{color:rgba(255,255,255,.82)}
.breadcrumb a:hover{color:#fff}
.breadcrumb em{font-style:normal;color:var(--lime)}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:56px;align-items:center}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  background:rgba(200,245,91,.16);border:1px solid rgba(200,245,91,.4);
  color:var(--lime);font-size:13px;font-weight:600;letter-spacing:.06em;
  margin-bottom:20px;
}
.hero-tag i{width:6px;height:6px;border-radius:50%;background:var(--lime);display:block}
.page-hero h1{
  font-size:46px;font-weight:700;line-height:1.18;letter-spacing:-.02em;
  margin-bottom:20px;color:#fff;
}
.page-hero h1 span{color:var(--lime)}
.hero-sub{font-size:17px;line-height:1.9;color:rgba(255,255,255,.84);max-width:520px;margin-bottom:30px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px}
.hero-badges li{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 15px;border-radius:999px;
  background:rgba(200,245,91,.14);border:1px solid rgba(200,245,91,.34);
  font-size:13px;color:#EAFCC0;font-variant-numeric:tabular-nums;
}
.hero-badges b{color:var(--lime);font-weight:700}
.hero-media{position:relative;margin-right:-24px}
.hero-media img{
  width:100%;aspect-ratio:16/11;object-fit:cover;
  border-radius:var(--radius-lg);
  box-shadow:0 30px 60px -30px rgba(0,0,0,.65);
  border:1px solid rgba(255,255,255,.16);
}
.hero-float{
  position:absolute;left:-18px;bottom:24px;
  background:#fff;color:var(--text);
  border-radius:16px;padding:14px 18px;
  box-shadow:0 20px 40px -22px rgba(0,0,0,.6);
  min-width:172px;
}
.hero-float b{display:block;font-size:22px;font-variant-numeric:tabular-nums;color:var(--purple);line-height:1.2}
.hero-float span{font-size:12.5px;color:var(--muted)}

/* ---------- 通用板块 ---------- */
.section{padding:var(--section) 0}
.section.alt{background:#F5F2FE}
.section-head{max-width:740px;margin-bottom:52px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 13px;border-radius:999px;
  background:var(--orange-soft);color:var(--orange-deep);
  font-size:12.5px;font-weight:700;letter-spacing:.1em;
  margin-bottom:16px;
}
.section-head h2{font-size:32px;margin-bottom:16px}
.section-head p{color:var(--muted);font-size:16px;max-width:640px}

/* ---------- 步骤条 ---------- */
.steps-row{margin:0 -12px}
.step-card{
  height:100%;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);
  padding:28px 24px 26px;position:relative;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(255,106,43,.3)}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:52px;height:52px;padding:0 12px;border-radius:16px;
  background:var(--lime);color:var(--purple);
  font-size:26px;font-weight:700;font-variant-numeric:tabular-nums;
  margin-bottom:18px;letter-spacing:-.02em;
}
.step-card h3{font-size:18px;margin-bottom:10px}
.step-card p{font-size:14.5px;color:var(--muted);line-height:1.8}
.step-line{
  display:none;
}

/* ---------- 图文交错 ---------- */
.split{
  display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
  margin-bottom:80px;
}
.split:last-child{margin-bottom:0}
.split-media{position:relative}
.split-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--radius-lg);box-shadow:var(--shadow);
  border:1px solid var(--line);
}
.split-media .media-chip{
  position:absolute;right:-14px;top:-14px;
  background:var(--night);color:var(--lime);
  font-size:12.5px;font-weight:700;letter-spacing:.06em;
  padding:8px 16px;border-radius:999px;
  box-shadow:0 14px 30px -18px rgba(18,14,36,.9);
}
.split.reverse .split-media{order:2}
.split-body h2{font-size:28px;margin-bottom:16px}
.split-body p{color:var(--muted);font-size:15.5px;line-height:1.9;margin-bottom:16px}
.check-list li{
  position:relative;padding-left:30px;margin-bottom:12px;
  font-size:15px;color:var(--text);line-height:1.8;
}
.check-list li::before{
  content:"";position:absolute;left:0;top:8px;
  width:16px;height:16px;border-radius:50%;
  background:rgba(255,106,43,.12);
  border:1.5px solid var(--orange);
}
.check-list li::after{
  content:"";position:absolute;left:5px;top:12px;
  width:6px;height:3px;border-left:1.8px solid var(--orange-deep);
  border-bottom:1.8px solid var(--orange-deep);
  transform:rotate(-45deg);
}

/* ---------- 提示卡 ---------- */
.tip-card{
  background:var(--orange-soft);
  border:1px solid rgba(255,106,43,.24);
  border-left:5px solid var(--orange);
  border-radius:var(--radius-md);
  padding:34px 36px;
}
.tip-card h3{font-size:21px;margin-bottom:10px;color:var(--orange-deep)}
.tip-card > p{color:#7A4126;font-size:15px;margin-bottom:22px}
.tip-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px 32px}
.tip-item{display:flex;gap:12px;align-items:flex-start}
.tip-item i{
  flex:none;width:26px;height:26px;border-radius:9px;margin-top:3px;
  background:rgba(255,106,43,.18);color:var(--orange-deep);
  font-style:normal;font-size:13px;font-weight:700;
  display:inline-flex;align-items:center;justify-content:center;
  font-variant-numeric:tabular-nums;
}
.tip-item b{display:block;font-size:15px;color:var(--text);margin-bottom:2px}
.tip-item span{font-size:14px;color:#7A4126;line-height:1.75}

/* ---------- 数据条 ---------- */
.stat-strip{
  position:relative;overflow:hidden;
  background:linear-gradient(135deg,#2B1B63 0%,#45308F 100%);
  border-radius:var(--radius-lg);
  padding:48px 44px;
  color:#fff;
}
.stat-strip::before{
  content:"";position:absolute;inset:0;
  background-image:
    radial-gradient(circle at 18% 30%,rgba(200,245,91,.16) 0 2px,transparent 3px),
    radial-gradient(circle at 72% 66%,rgba(255,255,255,.12) 0 1.6px,transparent 3px),
    radial-gradient(circle at 44% 16%,rgba(255,106,43,.18) 0 2px,transparent 3px);
  pointer-events:none;
}
.stat-grid{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:28px}
.stat-item b{
  display:block;font-size:34px;font-weight:700;line-height:1.1;
  color:var(--lime);font-variant-numeric:tabular-nums;letter-spacing:-.02em;
  margin-bottom:8px;
}
.stat-item strong{display:block;font-size:15px;font-weight:600;margin-bottom:4px}
.stat-item span{font-size:13px;color:rgba(255,255,255,.68)}
.tag-wall{position:relative;display:flex;flex-wrap:wrap;gap:10px;margin-top:38px;padding-top:32px;border-top:1px solid rgba(255,255,255,.16)}
.tag{
  padding:7px 15px;border-radius:999px;
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);
  font-size:13px;color:rgba(255,255,255,.9);
  transition:background .2s ease,border-color .2s ease,color .2s ease;
}
.tag:hover{background:rgba(200,245,91,.16);border-color:rgba(200,245,91,.5);color:var(--lime)}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px}
.faq-item{
  position:relative;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-md);margin-bottom:14px;overflow:hidden;
  transition:border-color .22s ease,box-shadow .22s ease;
}
.faq-item:hover{border-color:rgba(255,106,43,.3)}
.faq-item.is-open{border-color:rgba(255,106,43,.42);box-shadow:var(--shadow)}
.faq-item.is-open::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--orange);
}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  min-height:64px;padding:20px 26px;background:none;border:0;cursor:pointer;
  font-size:16px;font-weight:600;color:var(--text);text-align:left;line-height:1.6;
}
.faq-q:hover{color:var(--orange-deep)}
.faq-icon{
  flex:none;width:28px;height:28px;border-radius:50%;
  background:var(--orange-soft);display:inline-flex;align-items:center;justify-content:center;
  transition:transform .3s ease,background .22s ease;
}
.faq-icon svg{width:12px;height:12px;fill:var(--orange-deep)}
.faq-item.is-open .faq-icon{transform:rotate(180deg);background:var(--orange)}
.faq-item.is-open .faq-icon svg{fill:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease}
.faq-a-inner{padding:0 26px 24px;font-size:15px;line-height:1.88;color:var(--muted)}

/* ---------- CTA 带 ---------- */
.cta-band{
  position:relative;overflow:hidden;
  border-radius:var(--radius-lg);
  padding:58px 56px;
  background:linear-gradient(135deg,#120E24 0%,#2B1B63 62%,#3A2483 100%);
  color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap;
}
.cta-band::before{
  content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,106,43,.32) 0%,rgba(255,106,43,0) 70%);
}
.cta-band-text{position:relative;z-index:2;max-width:600px}
.cta-band h2{font-size:30px;margin-bottom:12px;color:#fff}
.cta-band p{color:rgba(255,255,255,.76);font-size:15.5px}
.cta-band-actions{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:14px}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;overflow:hidden;
  background:var(--night);color:rgba(255,255,255,.72);
  padding:72px 0 0;margin-top:var(--section);
}
.site-footer::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    radial-gradient(circle at 14% 18%,rgba(200,245,91,.14) 0 2px,transparent 3px),
    radial-gradient(circle at 62% 12%,rgba(255,255,255,.1) 0 1.6px,transparent 3px),
    radial-gradient(circle at 82% 64%,rgba(255,106,43,.14) 0 2px,transparent 3px),
    radial-gradient(circle at 34% 84%,rgba(255,255,255,.08) 0 1.6px,transparent 3px);
  opacity:.9;
}
.footer-grid{
  position:relative;display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:48px;
  padding-bottom:52px;
}
.footer-brand .logo{color:#fff;margin-bottom:18px}
.footer-brand .logo:hover{color:#fff}
.footer-brand .logo-text span{color:rgba(255,255,255,.55)}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);max-width:330px}
.footer-col h3{font-size:15px;font-weight:600;color:#fff;margin-bottom:20px;letter-spacing:.02em}
.footer-col ul li{margin-bottom:11px}
.footer-col ul li a{font-size:14px;color:rgba(255,255,255,.62)}
.footer-col ul li a:hover{color:var(--lime)}
.footer-note{
  font-size:13.5px;line-height:1.85;color:rgba(255,255,255,.6);
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);
  border-radius:var(--radius-sm);padding:20px 22px;
}
.footer-note b{display:block;color:#fff;font-size:14px;margin-bottom:8px}
.footer-bottom{
  position:relative;
  border-top:1px solid rgba(255,255,255,.1);
  padding:22px 0 26px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .page-hero h1{font-size:40px}
  .hero-grid{gap:40px}
  .stat-grid{grid-template-columns:repeat(2,1fr);gap:32px}
}
@media (max-width:991px){
  .container{padding:0 24px}
  .nav-toggle{display:inline-flex}
  .main-nav{
    position:fixed;top:72px;left:0;right:0;bottom:0;
    flex-direction:column;align-items:stretch;gap:4px;
    background:#fff;padding:22px 24px 40px;
    overflow-y:auto;
    transform:translateY(-10px);opacity:0;visibility:hidden;pointer-events:none;
    transition:opacity .24s ease,transform .24s ease,visibility .24s ease;
    box-shadow:0 24px 48px -32px rgba(43,27,99,.6);
  }
  .main-nav.is-open{opacity:1;visibility:visible;pointer-events:auto;transform:translateY(0)}
  .nav-link{padding:14px 16px;border-radius:14px;font-size:16px}
  .nav-cta{margin:14px 0 0;justify-content:center;padding:14px 20px;font-size:15px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-media{margin-right:0}
  .hero-media img{aspect-ratio:16/9}
  .page-hero{padding:32px 0 64px}
  .page-hero h1{font-size:36px}
  .section{padding:72px 0}
  .section-head{margin-bottom:40px}
  .section-head h2{font-size:27px}
  .split{grid-template-columns:1fr;gap:28px;margin-bottom:56px}
  .split.reverse .split-media{order:0}
  .split-body h2{font-size:24px}
  .tip-grid{grid-template-columns:1fr}
  .stat-strip{padding:38px 30px}
  .cta-band{padding:44px 34px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .site-footer{margin-top:72px;padding-top:56px}
}
@media (max-width:767px){
  body{font-size:16px;padding-top:64px}
  .header-inner{height:64px}
  .main-nav{top:64px}
  .logo-mark{width:34px;height:34px;border-radius:11px}
  .logo-text b{font-size:15px}
  .logo-text span{font-size:10.5px;letter-spacing:.12em}
  .page-hero h1{font-size:30px}
  .hero-sub{font-size:15.5px}
  .hero-actions .btn{flex:1 1 100%}
  .hero-float{padding:11px 14px;min-width:150px;left:-8px;bottom:14px}
  .hero-float b{font-size:19px}
  .section{padding:56px 0}
  .section-head h2{font-size:24px}
  .step-card{padding:24px 20px}
  .stat-strip{padding:32px 22px;border-radius:20px}
  .stat-grid{grid-template-columns:1fr 1fr;gap:24px}
  .stat-item b{font-size:27px}
  .tip-card{padding:26px 22px}
  .faq-q{padding:18px 20px;font-size:15px;min-height:56px}
  .faq-a-inner{padding:0 20px 20px;font-size:14.5px}
  .cta-band{padding:36px 24px;border-radius:20px}
  .cta-band h2{font-size:23px}
  .cta-band-actions{width:100%}
  .cta-band-actions .btn{flex:1 1 100%}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (max-width:479px){
  .container{padding:0 16px}
  .page-hero h1{font-size:26px}
  .hero-badges li{font-size:12px;padding:6px 12px}
  .stat-grid{grid-template-columns:1fr}
  .section-head h2{font-size:22px}
}

/* roulang page: category3 */
:root{
  --orange:#FF6A2B;
  --orange-deep:#D9490F;
  --orange-soft:#FFF1E9;
  --purple-1:#2B1B63;
  --purple-2:#6C4BE0;
  --lime:#C8F55B;
  --night:#120E24;
  --bg:#FBFAFF;
  --card:#FFFFFF;
  --line:#E7E3F2;
  --ink:#1B1633;
  --muted:#5F5A78;
  --radius-lg:24px;
  --radius-md:18px;
  --radius-sm:14px;
  --shadow:0 18px 40px -24px rgba(43,27,99,.35);
  --shadow-hover:0 26px 50px -22px rgba(43,27,99,.45);
  --space:24px;
  --container:1200px;
}

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

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

body{
  margin:0;
  font-family:"HarmonyOS Sans","PingFang SC","Microsoft YaHei","Hiragino Sans GB",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  font-size:16.5px;
  line-height:1.9;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}

img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .25s ease;}
ul,ol{margin:0;padding:0;list-style:none;}
p{margin:0 0 18px;}
p:last-child{margin-bottom:0;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;color:var(--ink);line-height:1.35;}
h1{font-size:clamp(28px,4vw,44px);letter-spacing:-.02em;}
h2{font-size:clamp(23px,2.6vw,32px);}
h3{font-size:20px;font-weight:600;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--lime);outline-offset:3px;border-radius:6px;}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 32px;
}

.section{padding:96px 0;}
.section--tight{padding:72px 0;}

.section-head{max-width:720px;margin-bottom:48px;}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.16em;text-transform:uppercase;
  color:var(--orange);margin-bottom:14px;
}
.section-head .eyebrow::before{content:"";width:26px;height:2px;background:var(--orange);border-radius:2px;}
.section-head h2{margin-bottom:14px;}
.section-head p{color:var(--muted);font-size:16.5px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 26px;border-radius:999px;
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1.5px solid transparent;cursor:pointer;
  transition:transform .25s ease,box-shadow .25s ease,background .25s ease,color .25s ease,border-color .25s ease;
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,var(--orange),var(--orange-deep));
  color:#fff;
  box-shadow:0 14px 28px -16px rgba(217,73,15,.75);
}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.06);box-shadow:0 20px 34px -16px rgba(217,73,15,.85);color:#fff;}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{
  background:#fff;color:var(--orange);border-color:var(--orange);
}
.btn-ghost:hover{background:var(--orange-soft);transform:translateY(-2px);color:var(--orange-deep);}
.btn-light-outline{
  background:transparent;color:#fff;border-color:rgba(255,255,255,.7);
}
.btn-light-outline:hover{background:rgba(255,255,255,.12);color:#fff;transform:translateY(-2px);}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:200;
  background:rgba(251,250,255,.92);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  transition:background .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.9);
  border-bottom-color:var(--line);
  box-shadow:0 12px 30px -26px rgba(43,27,99,.65);
}
.header-inner{
  min-height:72px;
  display:flex;align-items:center;justify-content:space-between;gap:24px;
}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo-mark{
  width:38px;height:38px;border-radius:12px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,var(--purple-1),var(--purple-2));
  box-shadow:0 10px 22px -14px rgba(43,27,99,.9);
}
.logo-mark svg{width:20px;height:20px;fill:var(--lime);}
.logo-text{display:flex;flex-direction:column;line-height:1.15;}
.logo-text b{font-size:16px;font-weight:700;color:var(--ink);letter-spacing:.02em;}
.logo-text span{font-size:11.5px;color:var(--muted);letter-spacing:.16em;}

.main-nav{display:flex;align-items:center;gap:4px;}
.nav-link{
  position:relative;
  padding:9px 13px;border-radius:999px;
  font-size:14.5px;color:var(--muted);font-weight:500;
  transition:color .25s ease,background .25s ease;
}
.nav-link::after{
  content:"";position:absolute;left:13px;right:13px;bottom:3px;height:2px;
  background:var(--orange);border-radius:2px;
  transform:scaleX(0);transform-origin:left center;
  transition:transform .25s ease;
}
.nav-link:hover{color:var(--orange);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:var(--orange);background:var(--orange-soft);font-weight:600;}
.nav-link.active::after{display:none;}
.nav-cta{margin-left:12px;min-height:44px;padding:0 22px;font-size:14.5px;}

.nav-toggle{
  display:none;
  width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:#fff;
  position:relative;cursor:pointer;flex:0 0 auto;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after{
  position:absolute;left:50%;width:20px;height:2px;border-radius:2px;
  background:var(--ink);transform:translateX(-50%);
  transition:transform .3s ease,opacity .3s ease,background .3s ease;
}
.nav-toggle span{top:50%;margin-top:-1px;}
.nav-toggle span::before{content:"";top:-6px;left:0;transform:none;}
.nav-toggle span::after{content:"";top:6px;left:0;transform:none;}
.nav-toggle.is-open span{background:transparent;}
.nav-toggle.is-open span::before{transform:rotate(45deg);top:0;background:var(--orange);}
.nav-toggle.is-open span::after{transform:rotate(-45deg);top:0;background:var(--orange);}
body.nav-lock{overflow:hidden;}

/* ---------- 页面 Hero ---------- */
.page-hero{
  position:relative;
  min-height:320px;
  display:flex;align-items:center;
  padding:64px 0 84px;
  background-image:url(/assets/images/backpic/back-1.png);
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(125deg,rgba(43,27,99,.95) 0%,rgba(43,27,99,.82) 48%,rgba(108,75,224,.66) 100%);
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.5) 1px,transparent 1px);
  background-size:46px 46px;
  opacity:.1;
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:2;}

.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13.5px;color:rgba(255,255,255,.68);
  margin-bottom:22px;
}
.crumbs a{color:rgba(255,255,255,.78);}
.crumbs a:hover{color:var(--lime);}
.crumbs .sep{color:rgba(255,255,255,.4);}
.crumbs .current{color:#fff;font-weight:600;}

.page-hero h1{color:#fff;margin-bottom:16px;max-width:820px;}
.page-hero h1 em{font-style:normal;color:var(--lime);}
.page-hero .hero-sub{
  color:rgba(255,255,255,.84);
  font-size:17px;max-width:640px;margin-bottom:30px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ---------- 数据徽章 ---------- */
.stats-band{position:relative;z-index:5;margin-top:-52px;}
.stats-grid{
  display:grid;grid-template-columns:repeat(4,1fr);
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow);
  overflow:hidden;
}
.stat{
  padding:26px 24px;
  display:flex;flex-direction:column;gap:6px;
  border-left:1px solid var(--line);
}
.stat:first-child{border-left:0;}
.stat-num{
  font-family:"Barlow Semi Condensed","Inter",-apple-system,sans-serif;
  font-size:32px;font-weight:700;line-height:1.1;
  color:var(--ink);font-variant-numeric:tabular-nums;
  display:flex;align-items:baseline;gap:5px;
}
.stat-num i{font-style:normal;font-size:14px;font-weight:600;color:var(--orange);}
.stat-label{font-size:13.5px;color:var(--muted);}
.stats-note{
  margin-top:14px;font-size:12.5px;color:var(--muted);text-align:center;
}

/* ---------- 图文交错 ---------- */
.split-list{display:flex;flex-direction:column;gap:64px;}
.split-card{
  display:grid;grid-template-columns:1.05fr 1fr;gap:56px;align-items:center;
}
.split-media{
  position:relative;
  border-radius:var(--radius-lg);
  overflow:hidden;
  box-shadow:var(--shadow);
  border:1px solid var(--line);
  background:#fff;
}
.split-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  transition:transform .6s ease;
}
.split-card:hover .split-media img{transform:scale(1.04);}
.split-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(200deg,rgba(43,27,99,0) 55%,rgba(43,27,99,.35) 100%);
  pointer-events:none;
}
.split-badge{
  position:absolute;left:20px;bottom:20px;z-index:2;
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 16px;border-radius:999px;
  background:rgba(18,14,36,.72);
  backdrop-filter:blur(6px);
  color:#fff;font-size:13px;font-weight:600;
}
.split-badge b{color:var(--lime);font-variant-numeric:tabular-nums;}
.split-card:nth-child(even) .split-media{order:2;}
.split-body h2{margin-bottom:16px;font-size:clamp(22px,2.2vw,29px);}
.split-body p{color:var(--muted);}
.split-points{margin-top:24px;display:flex;flex-direction:column;gap:12px;}
.split-points li{
  display:flex;align-items:flex-start;gap:12px;
  font-size:15px;color:var(--ink);
}
.split-points li::before{
  content:"";flex:0 0 auto;
  width:18px;height:18px;margin-top:5px;border-radius:50%;
  background:var(--orange-soft);
  border:1.5px solid rgba(255,106,43,.5);
  box-shadow:inset 0 0 0 3px #fff;
}

/* ---------- 标签墙 ---------- */
.tag-section{
  background:linear-gradient(180deg,#ffffff 0%,#F6F3FF 100%);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.tag-cloud{display:flex;flex-wrap:wrap;gap:12px;}
.tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 20px;border-radius:999px;
  font-size:14.5px;font-weight:500;
  color:var(--ink);background:#fff;
  border:1px solid var(--line);
  transition:transform .25s ease,border-color .25s ease,color .25s ease,background .25s ease;
}
.tag::before{
  content:"";width:6px;height:6px;border-radius:50%;
  background:var(--lime);flex:0 0 auto;
}
.tag:hover{transform:translateY(-3px);border-color:rgba(255,106,43,.45);color:var(--orange-deep);background:var(--orange-soft);}
.tag--strong{background:var(--night);color:#fff;border-color:var(--night);}
.tag--strong::before{background:var(--orange);}
.tag--strong:hover{background:var(--purple-1);color:#fff;border-color:var(--purple-1);}

/* ---------- FAQ ---------- */
.faq-list{max-width:860px;}
.faq-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  margin-bottom:14px;
  overflow:hidden;
  transition:border-color .3s ease,box-shadow .3s ease;
}
.faq-item[open]{border-color:rgba(255,106,43,.4);box-shadow:var(--shadow);}
.faq-q{
  position:relative;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;
  font-size:16px;font-weight:600;color:var(--ink);
  cursor:pointer;list-style:none;
  transition:color .25s ease;
}
.faq-q::-webkit-details-marker{display:none;}
.faq-q:hover{color:var(--orange-deep);}
.faq-item[open] .faq-q::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:4px;
  border-radius:0 4px 4px 0;background:var(--orange);
}
.chev{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  border:1.5px solid var(--line);
  display:grid;place-items:center;
  transition:transform .3s ease,background .3s ease,border-color .3s ease;
}
.chev::before{
  content:"";width:8px;height:8px;
  border-right:2px solid var(--muted);
  border-bottom:2px solid var(--muted);
  transform:rotate(45deg) translate(-1px,-1px);
}
.faq-item[open] .chev{transform:rotate(180deg);background:var(--orange-soft);border-color:rgba(255,106,43,.5);}
.faq-a{
  padding:0 24px 24px 24px;
  color:var(--muted);font-size:15.5px;line-height:1.85;
  animation:fadeIn .35s ease;
}
@keyframes fadeIn{from{opacity:0;transform:translateY(-6px);}to{opacity:1;transform:translateY(0);}}

/* ---------- 结尾 CTA ---------- */
.cta-band{
  position:relative;
  overflow:hidden;
  background:linear-gradient(125deg,var(--purple-1) 0%,#3A2478 55%,var(--purple-2) 100%);
  color:#fff;
  padding:80px 0;
}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(200,245,91,.55) 1px,transparent 1px);
  background-size:52px 52px;opacity:.1;pointer-events:none;
}
.cta-inner{
  position:relative;z-index:2;
  display:flex;align-items:center;justify-content:space-between;gap:40px;
}
.cta-inner h2{color:#fff;margin-bottom:12px;}
.cta-inner p{color:rgba(255,255,255,.78);max-width:560px;margin:0;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;
  background:var(--night);
  color:rgba(255,255,255,.72);
  padding:72px 0 0;
  overflow:hidden;
}
.site-footer::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.5) 1px,transparent 1px);
  background-size:60px 60px;opacity:.06;pointer-events:none;
}
.site-footer .container{position:relative;z-index:2;}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px;
  padding-bottom:56px;
}
.footer-brand .logo-text b{color:#fff;}
.footer-brand .logo-text span{color:rgba(255,255,255,.55);}
.footer-brand .logo-mark{box-shadow:none;}
.footer-brand p{
  margin-top:20px;font-size:14.5px;line-height:1.9;
  color:rgba(255,255,255,.6);max-width:340px;
}
.footer-col h3{
  font-size:15px;font-weight:600;color:#fff;margin-bottom:20px;
}
.footer-col ul{display:flex;flex-direction:column;gap:12px;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.6);}
.footer-col a:hover{color:var(--lime);}
.footer-note{
  font-size:13.5px;line-height:1.9;color:rgba(255,255,255,.6);
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.1);
  border-radius:var(--radius-sm);
  padding:18px 20px;
}
.footer-note b{display:block;color:#fff;font-size:14px;margin-bottom:8px;}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  padding:24px 0 32px;
  border-top:1px solid rgba(255,255,255,.1);
  font-size:13px;color:rgba(255,255,255,.45);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .container{padding:0 24px;}
  .split-card{gap:40px;}
}

@media (max-width:991px){
  .section{padding:72px 0;}
  .section--tight{padding:56px 0;}
  .nav-toggle{display:block;}
  .main-nav{
    position:fixed;left:0;right:0;top:72px;bottom:0;
    flex-direction:column;align-items:stretch;gap:6px;
    padding:24px 24px 40px;
    background:#fff;
    border-top:1px solid var(--line);
    transform:translateX(102%);
    transition:transform .35s cubic-bezier(.4,0,.2,1);
    overflow-y:auto;
    z-index:190;
  }
  .main-nav.open{transform:translateX(0);}
  .nav-link{font-size:16px;padding:14px 16px;border-radius:14px;}
  .nav-link::after{display:none;}
  .nav-link:hover{background:#F6F3FF;}
  .nav-cta{margin:16px 0 0;width:100%;min-height:48px;font-size:15px;}
  .stats-grid{grid-template-columns:repeat(2,1fr);}
  .stat:nth-child(3){border-left:0;}
  .stat:nth-child(1),.stat:nth-child(2){border-bottom:1px solid var(--line);}
  .split-card{grid-template-columns:1fr;gap:28px;}
  .split-card:nth-child(even) .split-media{order:0;}
  .split-list{gap:56px;}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .footer-brand{grid-column:1/-1;}
}

@media (max-width:767px){
  body{font-size:16px;line-height:1.85;}
  .container{padding:0 16px;}
  .header-inner{min-height:64px;gap:12px;}
  .main-nav{top:64px;}
  .logo-mark{width:34px;height:34px;border-radius:10px;}
  .logo-text b{font-size:15px;}
  .logo-text span{font-size:10.5px;letter-spacing:.1em;}
  .page-hero{min-height:280px;padding:44px 0 72px;}
  .page-hero .hero-sub{font-size:15.5px;margin-bottom:24px;}
  .hero-actions .btn{flex:1 1 auto;min-width:150px;}
  .stats-band{margin-top:-40px;}
  .stats-grid{grid-template-columns:repeat(2,1fr);}
  .stat{padding:20px 16px;}
  .stat-num{font-size:26px;}
  .stat-num i{font-size:12.5px;}
  .stat-label{font-size:12.5px;}
  .section-head{margin-bottom:32px;}
  .split-list{gap:44px;}
  .faq-q{font-size:15px;padding:18px 18px;gap:12px;}
  .faq-a{padding:0 18px 20px;}
  .tag{padding:9px 16px;font-size:13.5px;}
  .cta-band{padding:56px 0;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 100%;}
  .footer-grid{grid-template-columns:1fr;gap:32px;padding-bottom:40px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;font-size:12.5px;}
}

@media (max-width:479px){
  h1{font-size:26px;}
  .stat-num{font-size:23px;}
  .split-badge{left:14px;bottom:14px;font-size:12px;padding:6px 12px;}
}

/* roulang page: category4 */
:root{
  --orange:#FF6A2B;
  --orange-dark:#D9490F;
  --orange-soft:#FFF1E9;
  --purple-1:#2B1B63;
  --purple-2:#6C4BE0;
  --lime:#C8F55B;
  --ink:#120E24;
  --bg:#FBFAFF;
  --card:#FFFFFF;
  --line:#E7E3F2;
  --text:#1B1633;
  --muted:#5F5A78;
  --r-lg:24px;
  --r-md:18px;
  --r-sm:14px;
  --shadow:0 18px 40px -24px rgba(43,27,99,.35);
  --shadow-hover:0 24px 46px -22px rgba(43,27,99,.45);
  --container:1200px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"HarmonyOS Sans","PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size:16.5px;
  line-height:1.9;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;transition:color .22s var(--ease);}
a:hover{color:var(--orange);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;line-height:1.35;letter-spacing:-.01em;color:var(--text);}
h1{font-size:clamp(30px,4.2vw,50px);font-weight:700;letter-spacing:-.02em;}
h2{font-size:clamp(23px,2.6vw,32px);font-weight:700;}
h3{font-size:19px;font-weight:600;}
p{margin:0 0 18px;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px;}
section{position:relative;}

/* ============ Header ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1000;
  background:rgba(251,250,255,.92);
  border-bottom:1px solid transparent;
  transition:background .3s var(--ease),border-color .3s var(--ease),box-shadow .3s var(--ease);
}
.site-header.scrolled{
  background:rgba(255,255,255,.82);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom-color:var(--line);
  box-shadow:0 12px 30px -26px rgba(43,27,99,.6);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  min-height:72px;
}
.logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  color:var(--text);
}
.logo:hover{color:var(--text);}
.logo-mark{
  width:38px;height:38px;
  border-radius:12px;
  background:linear-gradient(135deg,var(--orange),var(--orange-dark));
  display:grid;place-items:center;
  box-shadow:0 10px 20px -12px rgba(255,106,43,.95);
  flex:0 0 auto;
}
.logo-mark svg{width:20px;height:20px;fill:#fff;}
.logo-text b{display:block;font-size:16px;font-weight:700;line-height:1.15;}
.logo-text span{display:block;font-size:11px;letter-spacing:.16em;color:var(--muted);line-height:1.3;}
.main-nav{
  display:flex;
  align-items:center;
  gap:4px;
}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  min-height:38px;
  padding:0 13px;
  font-size:14.5px;
  color:var(--muted);
  border-radius:999px;
  white-space:nowrap;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-link::after{
  content:"";
  position:absolute;
  left:13px;right:13px;bottom:4px;
  height:2px;
  border-radius:2px;
  background:var(--orange);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .25s var(--ease);
}
.nav-link:hover{color:var(--text);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{
  color:var(--orange);
  background:var(--orange-soft);
  font-weight:600;
}
.nav-link.active::after{transform:scaleX(0);}
.nav-cta{margin-left:10px;}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:0 22px;
  font-size:15px;
  font-weight:600;
  border-radius:999px;
  border:1.5px solid transparent;
  cursor:pointer;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn-primary{
  background:linear-gradient(135deg,var(--orange),var(--orange-dark));
  color:#fff;
  box-shadow:0 14px 26px -16px rgba(217,73,15,.9);
}
.btn-primary:hover{
  color:#fff;
  transform:translateY(-2px);
  filter:brightness(1.06);
  box-shadow:0 18px 30px -14px rgba(217,73,15,.92);
}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{
  background:#fff;
  color:var(--orange);
  border-color:var(--orange);
}
.btn-ghost:hover{background:var(--orange-soft);color:var(--orange-dark);transform:translateY(-2px);}
.btn-dark-outline{
  background:transparent;
  color:#fff;
  border-color:rgba(255,255,255,.7);
}
.btn-dark-outline:hover{background:rgba(255,255,255,.12);color:#fff;transform:translateY(-2px);}
.btn:focus-visible,
.nav-link:focus-visible,
a:focus-visible,
summary:focus-visible{
  outline:2px solid var(--lime);
  outline-offset:2px;
}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:12px;
  border:1px solid var(--line);
  background:#fff;
  position:relative;
  cursor:pointer;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after{
  position:absolute;
  left:50%;top:50%;
  width:18px;height:2px;
  border-radius:2px;
  background:var(--text);
  transform:translate(-50%,-50%);
  transition:transform .25s var(--ease),opacity .2s var(--ease);
}
.nav-toggle span::before{content:"";top:-6px;left:0;transform:none;}
.nav-toggle span::after{content:"";top:6px;left:0;transform:none;}
.site-header.nav-open .nav-toggle span{background:transparent;}
.site-header.nav-open .nav-toggle span::before{transform:rotate(45deg);top:0;}
.site-header.nav-open .nav-toggle span::after{transform:rotate(-45deg);top:0;}

/* ============ Page hero ============ */
.page-hero{
  position:relative;
  padding:78px 0 84px;
  color:#fff;
  background:
    linear-gradient(135deg,rgba(43,27,99,.94) 0%,rgba(76,52,168,.86) 55%,rgba(108,75,224,.78) 100%),
    url("/assets/images/backpic/back-2.png") center/cover no-repeat;
  overflow:hidden;
}
.page-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:radial-gradient(circle at 18% 24%,rgba(200,245,91,.12) 0 2px,transparent 3px),
                   radial-gradient(circle at 72% 62%,rgba(255,255,255,.10) 0 1.5px,transparent 3px),
                   radial-gradient(circle at 42% 82%,rgba(255,255,255,.08) 0 1.5px,transparent 3px);
  background-size:180px 180px,220px 220px,260px 260px;
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:1;}
.page-hero h1{color:#fff;margin:14px 0 16px;}
.breadcrumb{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  font-size:13.5px;
  color:rgba(255,255,255,.72);
  margin-bottom:6px;
}
.breadcrumb a{color:rgba(255,255,255,.9);}
.breadcrumb a:hover{color:var(--lime);}
.breadcrumb span[aria-current]{color:rgba(255,255,255,.68);}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:5px 14px;
  border-radius:999px;
  font-size:13px;
  letter-spacing:.08em;
  color:var(--ink);
  background:var(--lime);
  font-weight:600;
}
.page-hero .lede{
  max-width:640px;
  font-size:17px;
  line-height:1.85;
  color:rgba(255,255,255,.86);
  margin-bottom:28px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px;}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;}
.hero-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:7px 16px;
  border-radius:999px;
  font-size:13.5px;
  font-weight:600;
  color:var(--ink);
  background:rgba(200,245,91,.92);
  font-variant-numeric:tabular-nums;
}
.hero-badge b{font-size:15px;}

/* ============ Sections ============ */
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
.section-head{max-width:720px;margin-bottom:44px;}
.section-head .kicker{
  display:inline-block;
  font-size:13px;
  font-weight:700;
  letter-spacing:.18em;
  color:var(--orange);
  margin-bottom:12px;
}
.section-head h2{margin-bottom:14px;}
.section-head p{color:var(--muted);font-size:16px;margin:0;}

/* ============ 配置卡片行 ============ */
.config-list{display:flex;flex-direction:column;gap:18px;}
.config-card{
  display:grid;
  grid-template-columns:230px 1fr;
  align-items:center;
  gap:0;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow);
  padding:26px 30px;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.config-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-hover);
  border-color:rgba(255,106,43,.3);
}
.config-id{
  display:flex;
  align-items:center;
  gap:14px;
  padding-right:24px;
}
.sys-icon{
  width:56px;height:56px;
  border-radius:16px;
  display:grid;place-items:center;
  color:#fff;
  flex:0 0 auto;
  background:linear-gradient(135deg,var(--purple-1),var(--purple-2));
  box-shadow:0 12px 24px -16px rgba(43,27,99,.9);
}
.sys-icon.orange{background:linear-gradient(135deg,var(--orange),var(--orange-dark));box-shadow:0 12px 24px -16px rgba(217,73,15,.95);}
.sys-icon svg{width:26px;height:26px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}
.config-id strong{display:block;font-size:17px;font-weight:600;line-height:1.4;}
.config-id em{display:block;font-style:normal;font-size:13px;color:var(--muted);}
.config-specs{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:0;
  border-left:1px solid var(--line);
}
.spec-block{padding:0 0 0 30px;}
.spec-block + .spec-block{border-left:1px solid var(--line);padding-left:30px;}
.spec-block .spec-label{
  display:inline-block;
  font-size:12.5px;
  font-weight:700;
  letter-spacing:.1em;
  margin-bottom:10px;
  color:var(--muted);
}
.spec-block.recommend .spec-label{color:var(--orange);}
.spec-block ul li{
  position:relative;
  padding-left:16px;
  font-size:14.5px;
  color:var(--text);
  line-height:1.85;
  font-variant-numeric:tabular-nums;
}
.spec-block ul li::before{
  content:"";
  position:absolute;
  left:0;top:11px;
  width:6px;height:6px;
  border-radius:2px;
  background:var(--purple-2);
}
.spec-block.recommend ul li::before{background:var(--orange);}
.spec-block ul li + li{margin-top:2px;}

/* ============ 兼容设备矩阵 ============ */
.matrix-wrap{
  background:linear-gradient(180deg,#F4F1FF 0%,#FBFAFF 100%);
  border-radius:32px;
  padding:56px;
}
.device-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:18px;
}
.device-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:22px 22px 20px;
  box-shadow:var(--shadow);
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.device-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-hover);
  border-color:rgba(255,106,43,.3);
}
.device-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  margin-bottom:10px;
}
.device-head strong{font-size:16px;font-weight:600;}
.status{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:3px 11px;
  border-radius:999px;
  font-size:12.5px;
  font-weight:700;
  white-space:nowrap;
}
.status::before{
  content:"";
  width:6px;height:6px;
  border-radius:50%;
  background:currentColor;
}
.status.ok{background:rgba(200,245,91,.38);color:#3B5A00;}
.status.mid{background:var(--orange-soft);color:var(--orange-dark);}
.status.no{background:#F1EFF7;color:var(--muted);}
.device-card p{font-size:14px;color:var(--muted);line-height:1.8;margin:0;}

/* ============ 图文交错 ============ */
.split{
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:56px;
  align-items:center;
}
.split.reverse .split-media{order:2;}
.split-media{
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--shadow);
  border:1px solid var(--line);
  position:relative;
}
.split-media img{
  width:100%;
  aspect-ratio:16/11;
  object-fit:cover;
}
.split-media .media-tag{
  position:absolute;
  left:20px;bottom:20px;
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 16px;
  border-radius:999px;
  font-size:13px;
  font-weight:600;
  color:var(--ink);
  background:rgba(255,255,255,.94);
  box-shadow:0 10px 24px -18px rgba(43,27,99,.9);
}
.split-body h2{margin-bottom:16px;}
.split-body > p{color:var(--muted);}
.check-list{margin-top:22px;display:flex;flex-direction:column;gap:14px;}
.check-list li{
  display:flex;
  gap:12px;
  align-items:flex-start;
  font-size:15px;
  color:var(--text);
}
.check-list .tick{
  flex:0 0 auto;
  width:24px;height:24px;
  border-radius:8px;
  display:grid;place-items:center;
  background:rgba(200,245,91,.5);
  color:#3B5A00;
  font-size:13px;
  font-weight:700;
  margin-top:4px;
}
.check-list span b{display:block;font-weight:600;}
.check-list span em{font-style:normal;font-size:14px;color:var(--muted);}

/* ============ 折叠列表 ============ */
.acc-list{display:flex;flex-direction:column;gap:14px;max-width:900px;}
details.acc{
  background:var(--card);
  border:1px solid var(--line);
  border-left:4px solid transparent;
  border-radius:var(--r-md);
  box-shadow:var(--shadow);
  overflow:hidden;
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease);
}
details.acc[open]{
  border-left-color:var(--orange);
  box-shadow:var(--shadow-hover);
}
details.acc summary{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:20px 24px;
  cursor:pointer;
  font-size:16px;
  font-weight:600;
  list-style:none;
  transition:color .2s var(--ease);
}
details.acc summary::-webkit-details-marker{display:none;}
details.acc summary:hover{color:var(--orange);}
details.acc summary::after{
  content:"";
  flex:0 0 auto;
  width:9px;height:9px;
  margin-right:2px;
  border-right:2px solid var(--orange);
  border-bottom:2px solid var(--orange);
  transform:rotate(45deg) translateY(-2px);
  transition:transform .28s var(--ease);
}
details.acc[open] summary::after{transform:rotate(-135deg) translateY(-2px);}
details.acc .acc-body{
  padding:0 24px 22px;
  font-size:15px;
  line-height:1.9;
  color:var(--muted);
  animation:fadeIn .3s var(--ease);
}
@keyframes fadeIn{from{opacity:0;transform:translateY(-4px);}to{opacity:1;transform:none;}}

/* ============ CTA 带 ============ */
.cta-band{
  position:relative;
  padding:72px 0;
  color:#fff;
  background:
    radial-gradient(circle at 85% 20%,rgba(200,245,91,.14) 0 3px,transparent 4px),
    radial-gradient(circle at 12% 70%,rgba(255,255,255,.12) 0 2px,transparent 4px),
    linear-gradient(135deg,var(--purple-1) 0%,#1B1140 60%,var(--ink) 100%);
  background-size:200px 200px,240px 240px,auto;
  overflow:hidden;
}
.cta-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:40px;
  flex-wrap:wrap;
}
.cta-inner h2{color:#fff;margin-bottom:10px;}
.cta-inner p{color:rgba(255,255,255,.76);margin:0;max-width:560px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ============ Footer ============ */
.site-footer{
  position:relative;
  background:
    radial-gradient(circle at 20% 18%,rgba(200,245,91,.08) 0 2px,transparent 3px),
    radial-gradient(circle at 68% 44%,rgba(255,255,255,.07) 0 1.5px,transparent 3px),
    var(--ink);
  background-size:220px 220px,260px 260px,auto;
  color:rgba(255,255,255,.72);
  padding:72px 0 0;
  font-size:14px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.4fr;
  gap:44px;
  padding-bottom:52px;
}
.footer-brand .logo{color:#fff;margin-bottom:18px;}
.footer-brand .logo-text span{color:rgba(255,255,255,.5);}
.footer-brand p{color:rgba(255,255,255,.62);line-height:1.9;font-size:14px;margin:0;}
.footer-col h3{
  font-size:15px;
  font-weight:600;
  color:#fff;
  margin-bottom:18px;
}
.footer-col ul li + li{margin-top:10px;}
.footer-col ul a{color:rgba(255,255,255,.62);font-size:14px;}
.footer-col ul a:hover{color:var(--lime);}
.footer-note{
  border:1px solid rgba(255,255,255,.14);
  border-radius:var(--r-md);
  padding:20px;
  font-size:13.5px;
  line-height:1.9;
  color:rgba(255,255,255,.66);
  background:rgba(255,255,255,.04);
}
.footer-note b{display:block;color:#fff;font-size:14px;margin-bottom:8px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0;
  display:flex;
  flex-wrap:wrap;
  gap:10px 24px;
  justify-content:space-between;
  font-size:13px;
  color:rgba(255,255,255,.5);
}

/* ============ Responsive ============ */
@media (max-width:1199px){
  .container{padding:0 28px;}
  .matrix-wrap{padding:44px 32px;}
  .device-grid{grid-template-columns:repeat(2,1fr);}
  .split{gap:40px;}
}
@media (max-width:991px){
  .nav-toggle{display:inline-flex;}
  .main-nav{
    position:fixed;
    top:72px;left:0;right:0;bottom:0;
    flex-direction:column;
    align-items:stretch;
    gap:6px;
    padding:24px;
    background:#fff;
    overflow-y:auto;
    opacity:0;
    transform:translateY(-10px);
    pointer-events:none;
    transition:opacity .26s var(--ease),transform .26s var(--ease);
    border-top:1px solid var(--line);
  }
  .site-header.nav-open .main-nav{opacity:1;transform:none;pointer-events:auto;}
  .nav-link{padding:14px 16px;border-radius:14px;font-size:16px;}
  .nav-link::after{display:none;}
  .nav-cta{margin:16px 0 0;width:100%;}
  .header-inner{gap:12px;}
  .section{padding:72px 0;}
  .section-tight{padding:56px 0;}
  .config-card{grid-template-columns:1fr;gap:22px;padding:24px;}
  .config-id{padding-right:0;}
  .config-specs{border-left:0;border-top:1px solid var(--line);padding-top:20px;}
  .spec-block{padding-left:0;}
  .spec-block + .spec-block{padding-left:22px;}
  .split{grid-template-columns:1fr;}
  .split.reverse .split-media{order:0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
}
@media (max-width:767px){
  .container{padding:0 18px;}
  .page-hero{padding:56px 0 60px;}
  .page-hero .lede{font-size:16px;}
  .section{padding:56px 0;}
  .matrix-wrap{padding:28px 18px;border-radius:24px;}
  .device-grid{grid-template-columns:1fr;}
  .config-specs{grid-template-columns:1fr;}
  .spec-block + .spec-block{border-left:0;padding-left:0;border-top:1px solid var(--line);padding-top:16px;margin-top:16px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .footer-bottom{flex-direction:column;}
  .hero-badge{font-size:12.5px;padding:6px 13px;}
}
@media (max-width:479px){
  h1{font-size:27px;}
  .btn{width:100%;}
  .hero-actions .btn{width:100%;}
  .logo-text span{font-size:10px;letter-spacing:.1em;}
  .config-card{padding:20px;}
  details.acc summary{padding:16px 18px;font-size:15px;}
  details.acc .acc-body{padding:0 18px 18px;}
}

/* roulang page: category5 */
:root{
  --orange:#FF6A2B;
  --orange-deep:#D9490F;
  --purple:#2B1B63;
  --purple-2:#6C4BE0;
  --lime:#C8F55B;
  --ink:#120E24;
  --bg:#FBFAFF;
  --card:#FFFFFF;
  --line:#E7E3F2;
  --text:#1B1633;
  --muted:#5F5A78;
  --soft-orange:#FFF1E9;
  --r-lg:24px;
  --r-md:18px;
  --r-sm:14px;
  --shadow:0 18px 40px -24px rgba(43,27,99,.35);
  --shadow-hover:0 24px 48px -22px rgba(43,27,99,.45);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"HarmonyOS Sans","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16.5px;
  line-height:1.9;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none;margin:0;padding:0}
h1,h2,h3,h4,p,figure{margin:0}
button{font-family:inherit;cursor:pointer}
input{font-family:inherit}
:focus-visible{outline:2px solid var(--lime);outline-offset:3px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}
.nums{font-variant-numeric:tabular-nums}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:rgba(251,250,255,.92);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  transition:border-color .25s ease,box-shadow .25s ease,background .25s ease;
}
.site-header.is-scrolled{
  border-bottom-color:var(--line);
  box-shadow:0 12px 32px -26px rgba(43,27,99,.55);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:24px;height:72px;position:relative;z-index:1002;
}
.logo{display:flex;align-items:center;gap:10px;flex:none}
.logo-mark{
  width:38px;height:38px;border-radius:12px;flex:none;
  background:linear-gradient(135deg,var(--purple),var(--purple-2));
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 12px 24px -16px rgba(43,27,99,.8);
}
.logo-mark svg{width:20px;height:20px;fill:var(--lime)}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-text b{font-size:17px;font-weight:700;letter-spacing:-.02em;color:var(--text)}
.logo-text span{font-size:11.5px;letter-spacing:.06em;color:var(--muted)}
.main-nav{display:flex;align-items:center;gap:4px}
.nav-link{
  position:relative;padding:8px 12px;border-radius:999px;
  font-size:15px;color:var(--muted);transition:color .2s ease,background .2s ease;
  white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:var(--orange);border-radius:2px;
  transform:scaleX(0);transform-origin:left;transition:transform .25s ease;
}
.nav-link:hover{color:var(--orange)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:var(--orange-deep);background:var(--soft-orange);font-weight:600}
.nav-link.active::after{display:none}
.nav-cta{margin-left:8px}
.nav-toggle{
  display:none;width:44px;height:44px;flex:none;
  border:1px solid var(--line);border-radius:12px;background:#fff;
  position:relative;z-index:1003;padding:0;
}
.nav-toggle span,.nav-toggle::before,.nav-toggle::after{
  content:"";position:absolute;left:13px;right:13px;height:2px;
  background:var(--text);border-radius:2px;transition:transform .25s ease,opacity .2s ease;
}
.nav-toggle span{top:21px}
.nav-toggle::before{top:14px}
.nav-toggle::after{top:28px}
.nav-toggle.is-open span{opacity:0}
.nav-toggle.is-open::before{transform:translateY(7px) rotate(45deg)}
.nav-toggle.is-open::after{transform:translateY(-7px) rotate(-45deg)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:999px;
  font-size:15px;font-weight:600;border:1.5px solid transparent;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,color .22s ease,filter .22s ease;
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,var(--orange),var(--orange-deep));
  color:#fff;box-shadow:0 14px 30px -18px rgba(217,73,15,.9);
}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 18px 34px -16px rgba(217,73,15,.95)}
.btn-primary:active{transform:none}
.btn-ghost{background:#fff;border-color:var(--orange);color:var(--orange-deep)}
.btn-ghost:hover{background:var(--soft-orange);transform:translateY(-2px)}
.btn-line{background:transparent;border-color:rgba(255,255,255,.6);color:#fff}
.btn-line:hover{background:rgba(255,255,255,.12);transform:translateY(-2px)}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px}

/* ============ Hero ============ */
.page-hero{
  position:relative;overflow:hidden;color:#fff;
  background:linear-gradient(135deg,var(--purple) 0%,var(--purple-2) 100%);
  padding:52px 0 64px;
}
.page-hero-bg{
  position:absolute;inset:0;
  background-size:cover;background-position:center;
  opacity:.20;pointer-events:none;
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(circle at 12% 22%,rgba(200,245,91,.28) 0,rgba(200,245,91,0) 34%),
    radial-gradient(circle at 84% 12%,rgba(255,255,255,.22) 0,rgba(255,255,255,0) 30%),
    radial-gradient(circle at 68% 88%,rgba(200,245,91,.18) 0,rgba(200,245,91,0) 36%);
  opacity:.6;
}
.page-hero-inner{position:relative;z-index:2;max-width:820px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:rgba(255,255,255,.72);margin-bottom:22px}
.breadcrumb a{color:rgba(255,255,255,.86);transition:color .2s ease}
.breadcrumb a:hover{color:var(--lime)}
.breadcrumb .sep{color:rgba(255,255,255,.4)}
.page-hero h1{
  font-size:clamp(28px,4vw,44px);font-weight:700;letter-spacing:-.02em;
  line-height:1.32;color:#fff;
}
.page-hero-sub{margin-top:16px;font-size:16.5px;line-height:1.85;color:rgba(255,255,255,.86);max-width:660px}
.hero-search{
  display:flex;align-items:center;gap:8px;max-width:640px;margin-top:28px;
  background:#fff;border-radius:999px;padding:6px 6px 6px 20px;
  box-shadow:0 24px 46px -26px rgba(18,14,36,.85);
}
.hero-search svg{width:18px;height:18px;fill:none;stroke:var(--muted);stroke-width:2;flex:none}
.hero-search input{
  flex:1;min-width:0;border:0;background:transparent;outline:none;
  font-size:15.5px;color:var(--text);min-height:40px;
}
.hero-search input::placeholder{color:#9A94B0}
.hero-search .btn{flex:none}
.hero-stats{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.hero-stats li{
  display:inline-flex;align-items:baseline;gap:6px;
  padding:7px 15px;border-radius:999px;font-size:13px;
  background:rgba(200,245,91,.14);border:1px solid rgba(200,245,91,.42);color:var(--lime);
}
.hero-stats b{font-size:15.5px;color:#fff;font-variant-numeric:tabular-nums}

/* ============ 区块 ============ */
.section{padding:96px 0}
.section-tight{padding:72px 0}
.section-head{max-width:720px;margin-bottom:44px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.14em;color:var(--orange-deep);
  background:var(--soft-orange);border-radius:999px;padding:5px 14px;margin-bottom:16px;
  font-weight:600;
}
.section-title{font-size:clamp(24px,3vw,32px);font-weight:700;letter-spacing:-.02em;line-height:1.35}
.section-sub{margin-top:14px;color:var(--muted);font-size:16px;line-height:1.85}

/* ============ 快捷入口 2+1 非对称 ============ */
.quick-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.quick-card{
  display:flex;flex-direction:column;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;box-shadow:var(--shadow);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.quick-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(255,106,43,.32)}
.quick-card.is-wide{grid-column:span 2;flex-direction:row;align-items:stretch}
.quick-thumb{aspect-ratio:16/10;overflow:hidden;background:#EFEBFA}
.quick-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.quick-card:hover .quick-thumb img{transform:scale(1.04)}
.quick-card.is-wide .quick-thumb{flex:0 0 42%;aspect-ratio:auto}
.quick-body{padding:24px 26px 26px;display:flex;flex-direction:column;gap:10px;flex:1}
.quick-tag{
  align-self:flex-start;font-size:12.5px;font-weight:600;color:var(--purple-2);
  background:#F1EDFF;border-radius:999px;padding:3px 12px;letter-spacing:.02em;
}
.quick-body h3{font-size:20px;font-weight:700;line-height:1.45}
.quick-body p{color:var(--muted);font-size:15px;line-height:1.85}
.quick-link{
  margin-top:auto;padding-top:8px;font-size:14.5px;font-weight:600;color:var(--orange-deep);
  display:inline-flex;align-items:center;gap:6px;
}
.quick-link::after{content:"→";transition:transform .22s ease}
.quick-card:hover .quick-link::after{transform:translateX(4px)}

/* ============ FAQ 布局 ============ */
.faq-layout{display:grid;grid-template-columns:250px minmax(0,1fr);gap:48px;align-items:start}
.faq-side{position:sticky;top:96px}
.side-title{
  font-size:12.5px;letter-spacing:.16em;color:var(--muted);font-weight:600;
  margin-bottom:14px;
}
.side-nav{display:flex;flex-direction:column;border-left:2px solid var(--line)}
.side-link{
  display:block;padding:10px 14px;margin-left:-2px;font-size:15px;color:var(--muted);
  border-left:2px solid transparent;border-radius:0 12px 12px 0;
  transition:color .2s ease,background .2s ease,border-color .2s ease;
}
.side-link:hover{color:var(--orange-deep);background:var(--soft-orange)}
.side-link.active{color:var(--orange-deep);font-weight:600;border-left-color:var(--orange);background:var(--soft-orange)}
.side-tip{
  margin-top:24px;padding:16px 18px;border-radius:var(--r-sm);
  background:#FFF8F3;border:1px solid #FFE1CF;
  font-size:13.5px;line-height:1.85;color:#8A4520;
}
.side-tip b{display:block;color:var(--orange-deep);margin-bottom:4px;font-size:13.5px}

.faq-group{margin-bottom:48px;scroll-margin-top:100px}
.faq-group:last-child{margin-bottom:0}
.group-title{
  display:flex;align-items:center;gap:10px;
  font-size:22px;font-weight:700;line-height:1.4;margin-bottom:18px;
}
.group-title::before{content:"";width:4px;height:20px;border-radius:2px;background:var(--orange);flex:none}
.group-count{font-size:13px;font-weight:500;color:var(--muted)}

.faq-item{
  position:relative;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-md);margin-bottom:14px;overflow:hidden;
  transition:border-color .25s ease,box-shadow .25s ease;
}
.faq-item::before{
  content:"";position:absolute;left:0;top:16px;bottom:16px;width:4px;
  border-radius:0 4px 4px 0;background:var(--orange);opacity:0;transition:opacity .25s ease;
}
.faq-item.open{border-color:rgba(255,106,43,.32);box-shadow:var(--shadow)}
.faq-item.open::before{opacity:1}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:44px;padding:20px 24px;background:transparent;border:0;text-align:left;
  font-size:16.5px;font-weight:600;line-height:1.6;color:var(--text);
  transition:color .2s ease;
}
.faq-q:hover{color:var(--orange-deep)}
.faq-icon{width:20px;height:20px;flex:none;position:relative;transition:transform .3s ease}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--orange);border-radius:2px;transition:opacity .25s ease;
}
.faq-icon::before{left:0;right:0;top:9px;height:2px}
.faq-icon::after{top:0;bottom:0;left:9px;width:2px}
.faq-item.open .faq-icon{transform:rotate(180deg)}
.faq-item.open .faq-icon::after{opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease}
.faq-a-inner{
  padding:16px 24px 22px;margin:0 0;
  color:var(--muted);font-size:15.5px;line-height:1.9;
  border-top:1px dashed var(--line);
  opacity:0;transition:opacity .3s ease .05s;
}
.faq-item.open .faq-a-inner{opacity:1}
.faq-empty{
  display:none;padding:56px 24px;text-align:center;
  background:var(--card);border:1px dashed var(--line);border-radius:var(--r-md);
}
.faq-empty b{display:block;font-size:17px;margin-bottom:8px}
.faq-empty span{color:var(--muted);font-size:15px}
.faq-empty a{color:var(--orange-deep);font-weight:600;margin-left:4px}

/* ============ 支持卡 ============ */
.support-wrap{padding-top:0}
.support-card{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  background:linear-gradient(135deg,var(--purple) 0%,var(--purple-2) 100%);
  color:#fff;padding:52px;
  display:grid;grid-template-columns:1.25fr .75fr;gap:40px;align-items:center;
  box-shadow:var(--shadow-hover);
}
.support-card::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(circle at 88% 18%,rgba(200,245,91,.26) 0,rgba(200,245,91,0) 32%),
    radial-gradient(circle at 16% 82%,rgba(255,255,255,.18) 0,rgba(255,255,255,0) 30%);
}
.support-card > *{position:relative;z-index:2}
.support-card h2{font-size:clamp(22px,2.6vw,28px);font-weight:700;line-height:1.4;letter-spacing:-.01em}
.support-card p{margin-top:14px;font-size:15.5px;line-height:1.9;color:rgba(255,255,255,.85)}
.support-list{margin-top:20px;display:grid;gap:10px}
.support-list li{display:flex;gap:10px;font-size:14.5px;color:rgba(255,255,255,.88);line-height:1.75}
.support-list li::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--lime);flex:none;margin-top:9px}
.support-actions{display:flex;flex-direction:column;gap:14px;align-items:stretch}
.support-mail{
  font-size:14px;color:rgba(255,255,255,.72);text-align:center;letter-spacing:.02em;
  word-break:break-all;
}

/* ============ 结尾 CTA ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  background:var(--ink);color:#fff;padding:56px;
  display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap;
}
.cta-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(circle at 78% 24%,rgba(255,106,43,.30) 0,rgba(255,106,43,0) 34%),
    radial-gradient(circle at 22% 78%,rgba(200,245,91,.14) 0,rgba(200,245,91,0) 34%);
}
.cta-band > *{position:relative;z-index:2}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.4;letter-spacing:-.01em}
.cta-band p{margin-top:12px;color:rgba(255,255,255,.78);font-size:15.5px;max-width:560px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;overflow:hidden;
  background:var(--ink);color:#CFC9E4;padding:72px 0 0;margin-top:96px;
}
.site-footer::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(circle at 84% 12%,rgba(108,75,224,.30) 0,rgba(108,75,224,0) 42%),
    radial-gradient(circle at 8% 78%,rgba(200,245,91,.10) 0,rgba(200,245,91,0) 38%);
}
.site-footer .container{position:relative;z-index:2}
.footer-grid{display:grid;grid-template-columns:1.5fr .8fr .8fr 1fr;gap:40px;padding-bottom:48px}
.footer-brand .logo-text b{color:#fff}
.footer-brand .logo-text span{color:#A9A2C6}
.footer-brand p{margin-top:18px;font-size:14px;line-height:1.9;color:#A9A2C6;max-width:330px}
.footer-col h3{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-col ul li{margin-bottom:10px}
.footer-col a{font-size:14px;color:#A9A2C6;transition:color .2s ease}
.footer-col a:hover{color:var(--lime)}
.footer-note{font-size:13.5px;line-height:1.9;color:#A9A2C6}
.footer-note b{display:block;color:#fff;font-size:14px;margin-bottom:8px;font-weight:600}
.footer-bottom{
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.1);padding:22px 0 30px;
  font-size:13px;color:#8F88AD;
}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .container{padding:0 24px}
  .faq-layout{gap:32px;grid-template-columns:220px minmax(0,1fr)}
  .footer-grid{grid-template-columns:1.3fr .9fr .9fr;gap:32px}
  .footer-col:last-child{grid-column:span 3}
}
@media (max-width:991px){
  .nav-toggle{display:block}
  .main-nav{
    position:fixed;top:72px;left:0;right:0;bottom:0;z-index:1001;
    flex-direction:column;align-items:stretch;gap:2px;
    background:#fff;padding:16px 20px 40px;overflow-y:auto;
    transform:translateY(-10px);opacity:0;pointer-events:none;
    transition:transform .28s ease,opacity .28s ease;
    box-shadow:0 24px 48px -30px rgba(43,27,99,.5);
  }
  .main-nav.is-open{transform:none;opacity:1;pointer-events:auto}
  .nav-link{padding:14px 12px;border-radius:12px;font-size:16px}
  .nav-link::after{display:none}
  .nav-cta{margin:18px 0 0;width:100%}
  .section{padding:72px 0}
  .section-tight{padding:56px 0}
  .faq-layout{grid-template-columns:1fr;gap:28px}
  .faq-side{position:static;top:auto}
  .side-nav{
    flex-direction:row;border-left:0;overflow-x:auto;gap:8px;padding-bottom:6px;
    scrollbar-width:none;
  }
  .side-nav::-webkit-scrollbar{display:none}
  .side-link{
    flex:none;border-left:0;border:1px solid var(--line);border-radius:999px;
    padding:8px 16px;font-size:14px;white-space:nowrap;background:#fff;
  }
  .side-link.active{border-color:rgba(255,106,43,.35);background:var(--soft-orange)}
  .support-card{grid-template-columns:1fr;padding:40px 32px}
  .quick-card.is-wide .quick-thumb{flex:0 0 38%}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .footer-col:last-child{grid-column:span 2}
  .cta-band{padding:44px 32px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  body{font-size:16px}
  .page-hero{padding:36px 0 48px}
  .page-hero-sub{font-size:15.5px}
  .quick-grid{grid-template-columns:1fr}
  .quick-card.is-wide{grid-column:span 1;flex-direction:column}
  .quick-card.is-wide .quick-thumb{flex:none;aspect-ratio:16/9}
  .section{padding:56px 0}
  .section-tight{padding:44px 0}
  .quick-body{padding:20px 20px 22px}
  .faq-q{padding:16px 18px;font-size:15.5px}
  .faq-a-inner{padding:14px 18px 20px;font-size:15px}
  .group-title{font-size:19px}
  .support-card{padding:32px 22px}
  .cta-band{padding:36px 22px;gap:24px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
  .hero-search{padding:6px 6px 6px 16px}
  .hero-stats li{font-size:12.5px;padding:6px 12px}
  .site-footer{padding-top:56px;margin-top:64px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .footer-col:last-child{grid-column:span 2}
}
@media (max-width:520px){
  .logo-text span{display:none}
  .logo-text b{font-size:16px}
  .hero-search .btn{padding:0 16px;font-size:14px}
  .quick-thumb{aspect-ratio:16/11}
  .footer-grid{grid-template-columns:1fr}
  .footer-col:last-child{grid-column:span 1}
  .support-actions .btn{width:100%}
}