/* roulang page: index */
/* ============ 设计变量 ============ */
:root{
  --ink-900:#0C0E0F;
  --ink-700:#22282A;
  --ink-500:#4C5559;
  --ink-300:#8A9296;
  --line:#E3E0D8;
  --paper:#F7F5EF;
  --surface:#FFFFFF;
  --surface-2:#EFEDE6;
  --brand:#C6F24E;
  --brand-strong:#A9D93A;
  --brand-soft:#EEF8D2;
  --ember:#FF6A3D;
  --shadow-1:0 1px 2px rgba(12,14,15,.04),0 8px 24px -12px rgba(12,14,15,.10);
  --shadow-2:0 18px 40px -18px rgba(12,14,15,.22);
  --r-card:16px;
  --r-lg:20px;
  --r-input:12px;
  --r-pill:999px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
}

/* ============ 基础 reset ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink-700);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
body.no-scroll{overflow:hidden}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer;padding:0}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;color:var(--ink-900);letter-spacing:-.02em;line-height:1.25}
p{margin:0}
table{border-collapse:collapse;width:100%}
:focus-visible{outline:2px solid var(--ink-900);outline-offset:2px;border-radius:6px}
::selection{background:var(--brand);color:var(--ink-900)}

/* ============ 容器与栅格 ============ */
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 32px}
.grid-12{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:52px;padding:0 28px;border-radius:var(--r-pill);
  font-size:15px;font-weight:700;letter-spacing:.01em;cursor:pointer;
  transition:transform .2s var(--ease),background .2s var(--ease),box-shadow .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
  border:1px solid transparent;
}
.btn-sm{height:44px;padding:0 20px;font-size:14px}
.btn-primary{background:var(--brand);color:var(--ink-900);box-shadow:var(--shadow-1)}
.btn-primary:hover{background:var(--brand-strong);transform:translateY(-2px);box-shadow:var(--shadow-2)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-ghost{background:transparent;border-color:var(--ink-900);color:var(--ink-900)}
.btn-ghost:hover{background:var(--ink-900);color:var(--paper)}
.btn-ghost-dark{background:transparent;border-color:rgba(255,255,255,.5);color:#fff}
.btn-ghost-dark:hover{background:#fff;color:var(--ink-900);border-color:#fff}
.btn[disabled],.btn.is-disabled{background:var(--surface-2);color:var(--ink-300);box-shadow:none;transform:none;pointer-events:none}

.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:700;color:var(--ink-900);
  background-image:linear-gradient(currentColor,currentColor);
  background-size:0% 1px;background-position:0 100%;background-repeat:no-repeat;
  transition:background-size .24s var(--ease),color .2s var(--ease);
  padding-bottom:1px;
}
.link-arrow:hover{background-size:100% 1px}
.link-arrow svg{width:16px;height:16px;flex:none;transition:transform .24s var(--ease)}
.link-arrow:hover svg{transform:translateX(4px)}
.link-arrow.is-light{color:#fff}
.link-arrow.is-back:hover svg{transform:translateX(-4px)}

/* ============ 徽章 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:600;letter-spacing:.02em;
  padding:4px 10px;border-radius:var(--r-pill);
  background:var(--brand-soft);color:var(--ink-900);white-space:nowrap;
}
.badge-outline{background:transparent;border:1px solid var(--brand-strong);color:var(--ink-900)}
.badge-solid{background:var(--brand);color:var(--ink-900)}
.badge-hot{background:transparent;border:1px solid var(--ember);color:var(--ember)}
.badge-dark{background:rgba(255,255,255,.12);color:#fff}
.eyebrow{
  font-size:12px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;
  color:var(--ink-300);margin:0 0 14px;
}
.eyebrow.is-light{color:rgba(255,255,255,.6)}

/* ============ 悬浮胶囊导航 ============ */
.site-nav{
  position:fixed;top:16px;left:50%;transform:translateX(-50%);
  width:calc(100% - 48px);max-width:1160px;z-index:120;
}
.nav-inner{
  display:flex;align-items:center;gap:20px;height:64px;
  padding:0 12px 0 20px;border-radius:var(--r-pill);
  background:rgba(247,245,239,.82);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border:1px solid var(--line);
  box-shadow:var(--shadow-1);
  transition:background .2s var(--ease),box-shadow .2s var(--ease);
}
.site-nav.is-scrolled .nav-inner{background:rgba(247,245,239,.96);box-shadow:var(--shadow-2)}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;min-height:44px}
.brand-mark{width:28px;height:28px;color:var(--ink-900);flex:none}
.brand-text{font-size:15px;font-weight:800;color:var(--ink-900);letter-spacing:-.01em;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:40px;padding:0 14px;
  border-radius:var(--r-pill);font-size:14px;font-weight:600;color:var(--ink-700);
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.nav-link:hover{background:var(--surface);transform:translateY(-1px)}
.nav-link.is-active{background:var(--brand-soft);color:var(--ink-900)}
.nav-link.is-active::after{
  content:"";position:absolute;left:50%;bottom:5px;transform:translateX(-50%);
  width:16px;height:2px;border-radius:2px;background:var(--brand-strong);
}
.nav-right{display:flex;align-items:center;gap:8px;flex:0 0 auto}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-pill);
  align-items:center;justify-content:center;color:var(--ink-900);
}
.nav-toggle:hover{background:var(--surface)}

/* 移动端浮层 */
.mobile-menu{
  position:fixed;inset:0;z-index:110;background:var(--paper);
  display:flex;flex-direction:column;padding:104px 22px 32px;
  opacity:0;visibility:hidden;transform:translateY(-10px);
  transition:opacity .2s var(--ease),transform .2s var(--ease),visibility .2s linear;
  overflow-y:auto;
}
.mobile-menu.is-open{opacity:1;visibility:visible;transform:none}
.mobile-link{
  display:flex;align-items:center;justify-content:space-between;
  min-height:64px;font-size:20px;font-weight:700;color:var(--ink-900);
  border-bottom:1px solid var(--line);
}
.mobile-link.is-active{color:var(--ink-900)}
.mobile-link.is-active::after{
  content:"";width:8px;height:8px;border-radius:2px;background:var(--brand-strong);
}
.mobile-cta{margin-top:auto;width:100%;margin-top:32px}

/* ============ Hero ============ */
.hero{position:relative;overflow:hidden;background:var(--ink-900);padding:176px 0 0}
.hero-bg{
  position:absolute;inset:0;
  background-image:linear-gradient(180deg,rgba(12,14,15,.20) 0%,rgba(12,14,15,.62) 46%,rgba(12,14,15,.96) 100%),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
}
.hero-grid-tex{
  position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.055) 1px,transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.75),transparent 72%);
  mask-image:linear-gradient(180deg,rgba(0,0,0,.75),transparent 72%);
}
.hero-inner{position:relative;z-index:2;max-width:700px;padding-bottom:56px}
.hero h1{
  font-size:clamp(32px,5vw,68px);line-height:1.05;font-weight:800;
  letter-spacing:-.03em;color:#fff;margin-bottom:22px;
}
.hero h1 .mark{
  background-image:linear-gradient(var(--brand),var(--brand));
  background-size:0% 6px;background-position:0 90%;background-repeat:no-repeat;
  animation:markIn .55s .35s var(--ease) forwards;
  padding-bottom:2px;
}
@keyframes markIn{to{background-size:100% 6px}}
.hero-sub{font-size:17px;line-height:1.85;color:rgba(255,255,255,.78);max-width:560px;margin-bottom:34px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px}
.hero-stats{
  position:relative;z-index:2;
  display:grid;grid-template-columns:repeat(3,1fr);
  border-top:1px solid rgba(255,255,255,.16);
}
.stat{padding:26px 0 42px}
.stat + .stat{border-left:1px solid rgba(255,255,255,.16);padding-left:32px}
.stat-num{
  font-size:44px;font-weight:800;line-height:1;color:var(--brand);
  font-variant-numeric:tabular-nums;letter-spacing:.02em;
}
.stat-label{font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:rgba(255,255,255,.56);margin-top:12px}

/* ============ 信任条 ============ */
.trust{border-bottom:1px solid var(--line);background:var(--paper)}
.trust-inner{display:grid;grid-template-columns:repeat(4,1fr)}
.trust-item{
  display:flex;align-items:center;gap:10px;
  padding:22px 20px;font-size:14px;color:var(--ink-500);line-height:1.6;
}
.trust-item:first-child{padding-left:0}
.trust-item + .trust-item{border-left:1px solid var(--line)}
.trust-item svg{width:20px;height:20px;flex:none;color:var(--ink-900)}

/* ============ 板块通用 ============ */
.section{padding:112px 0}
.section-tight{padding:80px 0}
.section-dark{background:var(--ink-900);color:#fff;padding:104px 0}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:32px;margin-bottom:40px;
}
.section-head-main{max-width:680px}
.section-title{font-size:clamp(26px,3.2vw,38px);line-height:1.2;font-weight:700;letter-spacing:-.02em}
.section-title.is-light{color:#fff}
.section-desc{margin-top:14px;font-size:16px;line-height:1.85;color:var(--ink-500);max-width:660px}
.section-desc.is-light{color:rgba(255,255,255,.68)}
.section-head-side{flex:0 0 auto;padding-bottom:6px}

/* ============ 会员方案对比 ============ */
.plan-tabs{display:none;gap:8px;margin-bottom:24px;flex-wrap:wrap}
.plan-tab{
  height:44px;padding:0 20px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:var(--surface);
  font-size:14px;font-weight:700;color:var(--ink-700);
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.plan-tab:hover{border-color:var(--ink-300)}
.plan-tab.is-active{background:var(--brand-soft);border-color:var(--brand-strong);color:var(--ink-900)}
.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start}
.plan{
  position:relative;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);padding:30px 26px 28px;box-shadow:var(--shadow-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
}
.plan:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.plan-advanced{background:var(--brand-soft);border-color:var(--brand-strong)}
.plan-flagship{background:var(--ink-900);border-color:var(--ink-900);color:#fff;transform:translateY(-8px);box-shadow:var(--shadow-2);overflow:hidden}
.plan-flagship:hover{transform:translateY(-10px)}
.plan-flagship::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--brand)}
.plan-head-top{display:flex;align-items:center;gap:8px;margin-bottom:16px}
.plan-name{font-size:24px;font-weight:700;color:var(--ink-900);margin-bottom:8px}
.plan-flagship .plan-name{color:#fff}
.plan-note{font-size:14px;color:var(--ink-500);line-height:1.75;min-height:52px}
.plan-flagship .plan-note{color:rgba(255,255,255,.7)}
.plan-features{margin:24px 0 26px;display:flex;flex-direction:column;gap:12px}
.plan-features li{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--ink-700)}
.plan-features li svg{width:18px;height:18px;flex:none;color:var(--brand-strong)}
.plan-features li.is-off{color:var(--ink-300)}
.plan-features li.is-off svg{color:var(--ink-300)}
.plan-flagship .plan-features li{color:rgba(255,255,255,.82)}
.plan-flagship .plan-features li svg{color:var(--brand)}
.plan .btn{width:100%}
.plan-advanced .btn-ghost:hover,.plan .btn-primary:hover{transform:translateY(-2px)}
.plan-hint{margin-top:14px;font-size:13px;color:var(--ink-300)}
.plan-flagship .plan-hint{color:rgba(255,255,255,.5)}

/* ============ 等级亮点（编号大条目） ============ */
.levels{border-top:1px solid var(--line)}
.level{
  display:grid;grid-template-columns:132px 1fr;gap:36px;align-items:start;
  padding:34px 24px;border-bottom:1px solid var(--line);
  transition:background .2s var(--ease);
}
.level:hover{background:var(--surface)}
.level-num{
  font-size:72px;font-weight:800;line-height:.92;color:var(--ink-300);
  font-variant-numeric:tabular-nums;letter-spacing:-.04em;
  transition:color .2s var(--ease);
}
.level:hover .level-num{color:var(--brand-strong)}
.level-body{max-width:720px}
.level-title{font-size:22px;font-weight:700;margin-bottom:12px}
.level-text{font-size:15px;line-height:1.85;color:var(--ink-500);margin-bottom:16px}
.level-media{
  margin-top:20px;width:min(340px,100%);border-radius:var(--r-input);
  overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-1);
}
.level-media img{width:100%;aspect-ratio:16/10;object-fit:cover}

/* ============ 横向卡带（深色） ============ */
.reel-wrap{position:relative}
.reel{
  display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding-bottom:10px;scrollbar-width:none;-ms-overflow-style:none;
}
.reel::-webkit-scrollbar{display:none}
.reel-card{
  flex:0 0 28%;scroll-snap-align:start;position:relative;
  background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08);
  border-radius:var(--r-card);overflow:hidden;
  transition:transform .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.reel-card:hover{transform:translateY(-2px);border-color:rgba(255,255,255,.2);background:rgba(255,255,255,.07)}
.reel-cover{aspect-ratio:16/9;overflow:hidden;background:var(--ink-700)}
.reel-cover img{width:100%;height:100%;object-fit:cover;transition:transform .24s var(--ease)}
.reel-card:hover .reel-cover img{transform:scale(1.03)}
.reel-body{padding:18px 18px 20px}
.reel-top{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:12px}
.reel-lock{display:inline-flex;align-items:center;gap:6px;font-size:12px;color:rgba(255,255,255,.6)}
.reel-lock svg{width:15px;height:15px}
.reel-title{font-size:18px;font-weight:700;line-height:1.45;color:#fff;margin-bottom:10px}
.reel-meta{font-size:13px;color:rgba(255,255,255,.5);font-variant-numeric:tabular-nums}
.reel-fade{position:absolute;top:0;bottom:10px;width:48px;pointer-events:none}
.reel-fade.left{left:0;background:linear-gradient(90deg,var(--ink-900),rgba(12,14,15,0))}
.reel-fade.right{right:0;background:linear-gradient(270deg,var(--ink-900),rgba(12,14,15,0))}

/* ============ 最新信息（CMS） ============ */
.news-grid{display:grid;grid-template-columns:5fr 7fr;gap:24px;align-items:start}
.post-cover{aspect-ratio:16/9;overflow:hidden;border-radius:var(--r-input);background:var(--surface-2)}
.post-cover img{width:100%;height:100%;object-fit:cover;transition:transform .24s var(--ease)}
.post-placeholder{
  aspect-ratio:16/9;border-radius:var(--r-input);background:var(--ink-900);
  background-image:linear-gradient(rgba(255,255,255,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.07) 1px,transparent 1px);
  background-size:24px 24px;
  display:flex;align-items:center;justify-content:center;
  color:var(--brand);font-size:28px;font-weight:800;
}
.post-feature,.post-mini{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-1);transition:transform .2s var(--ease),box-shadow .2s var(--ease)}
.post-feature:hover,.post-mini:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.post-feature:hover .post-cover img,.post-mini:hover .post-cover img{transform:scale(1.03)}
.post-feature-link{display:block;padding:16px}
.post-body{padding:18px 4px 6px}
.post-title{font-size:18px;font-weight:700;line-height:1.45;margin:12px 0 10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-excerpt{font-size:15px;line-height:1.75;color:var(--ink-500);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-meta{display:flex;align-items:center;gap:10px;margin-top:14px;font-size:13px;color:var(--ink-300);font-variant-numeric:tabular-nums}
.news-side{display:flex;flex-direction:column;gap:24px}
.news-mini-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.post-mini-link{display:flex;gap:14px;padding:14px}
.post-mini-thumb{flex:0 0 108px;aspect-ratio:4/3;border-radius:var(--r-input);overflow:hidden;background:var(--surface-2)}
.post-mini-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .24s var(--ease)}
.post-mini-body{min-width:0}
.post-mini-title{font-size:15px;font-weight:700;line-height:1.5;margin:8px 0 6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;color:var(--ink-900)}
.post-mini-meta{font-size:13px;color:var(--ink-300);font-variant-numeric:tabular-nums}
.news-compact{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:6px 22px;box-shadow:var(--shadow-1)}
.news-compact li + li{border-top:1px solid var(--line)}
.compact-link{
  display:flex;align-items:center;gap:16px;padding:18px 0;min-height:64px;
  transition:background .2s var(--ease);
}
.compact-link:hover .compact-title{transform:translateX(4px);color:var(--ink-900)}
.compact-title{
  flex:1 1 auto;font-size:15px;font-weight:600;color:var(--ink-700);
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
  transition:transform .2s var(--ease),color .2s var(--ease);
}
.compact-meta{flex:0 0 auto;font-size:13px;color:var(--ink-300);font-variant-numeric:tabular-nums}
.empty-state{
  border:1px dashed var(--line);border-radius:var(--r-card);
  min-height:200px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:16px;text-align:center;padding:32px;
}
.empty-state p{font-size:15px;color:var(--ink-500)}

/* ============ FAQ ============ */
.faq-layout{display:grid;grid-template-columns:1fr 1.45fr;gap:64px;align-items:start}
.faq-side{position:sticky;top:112px}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  width:100%;min-height:64px;padding:20px 0;text-align:left;
  font-size:17px;font-weight:700;color:var(--ink-900);line-height:1.5;
}
.faq-q:hover{color:var(--ink-700)}
.faq-icon{width:20px;height:20px;flex:none;color:var(--ink-900);transition:transform .24s var(--ease)}
.faq-item.is-open .faq-icon{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s var(--ease)}
.faq-a p{padding:0 0 20px;font-size:15px;line-height:1.85;color:var(--ink-500)}

/* ============ CTA 带 ============ */
.cta-band{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:56px 48px;text-align:center;box-shadow:var(--shadow-1);
}
.cta-band h2{font-size:clamp(26px,3.2vw,38px);margin-bottom:16px}
.cta-band .section-desc{margin:0 auto 32px;text-align:center}
.cta-actions{display:flex;flex-wrap:wrap;gap:16px;justify-content:center;align-items:center}
.cta-points{display:flex;flex-wrap:wrap;gap:12px 28px;justify-content:center;margin-top:28px}
.cta-points li{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-500)}
.cta-points svg{width:16px;height:16px;color:var(--brand-strong);flex:none}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--ink-900);color:#fff;border-radius:var(--r-lg) var(--r-lg) 0 0;
  margin-top:96px;padding:72px 0 40px;
}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px}
.footer-brand svg{width:26px;height:26px;color:var(--brand)}
.footer-brand span{font-size:16px;font-weight:800;color:#fff}
.footer-text{font-size:14px;line-height:1.85;color:rgba(255,255,255,.6);max-width:320px}
.footer-col h3{
  font-size:13px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;
  color:rgba(255,255,255,.5);margin-bottom:18px;
}
.footer-col li + li{margin-top:12px}
.footer-link{
  font-size:14px;color:rgba(255,255,255,.72);
  background-image:linear-gradient(currentColor,currentColor);
  background-size:0% 1px;background-position:0 100%;background-repeat:no-repeat;
  transition:background-size .24s var(--ease),color .2s var(--ease);
  padding-bottom:2px;
}
.footer-link:hover{color:var(--brand);background-size:100% 1px}
.footer-bottom{
  margin-top:56px;padding-top:24px;border-top:1px solid rgba(255,255,255,.08);
  display:flex;flex-wrap:wrap;gap:12px 24px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ============ 入场动效 ============ */
.js .reveal{opacity:0;transform:translateY(8px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
.js .reveal.is-in{opacity:1;transform:none}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important}
  .js .reveal{opacity:1;transform:none}
  .hero h1 .mark{background-size:100% 6px}
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .container{padding:0 24px}
  .section{padding:88px 0}
  .section-dark{padding:88px 0}
  .reel-card{flex:0 0 32%}
  .level{grid-template-columns:104px 1fr;gap:28px}
  .level-num{font-size:60px}
}

@media (max-width:1023px){
  .nav-links{display:none}
  .nav-toggle{display:inline-flex}
  .nav-right .btn{display:none}
  .hero{padding-top:150px}
  .section{padding:72px 0}
  .section-dark{padding:72px 0}
  .trust-inner{grid-template-columns:repeat(2,1fr)}
  .trust-item:nth-child(3){border-left:0;padding-left:0}
  .trust-item:nth-child(1),.trust-item:nth-child(2){border-bottom:1px solid var(--line)}
  .plan-tabs{display:flex}
  .plans{grid-template-columns:1fr;gap:16px}
  .plan{display:none}
  .plan.is-shown{display:block;transform:none}
  .plan-flagship{transform:none}
  .plan-flagship:hover{transform:translateY(-2px)}
  .news-grid{grid-template-columns:1fr}
  .news-mini-grid{grid-template-columns:1fr 1fr}
  .faq-layout{grid-template-columns:1fr;gap:32px}
  .faq-side{position:static}
  .reel-card{flex:0 0 42%}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .level{grid-template-columns:80px 1fr;gap:22px}
  .level-num{font-size:52px}
}

@media (max-width:767px){
  .container{padding:0 18px}
  body{font-size:15px;line-height:1.85}
  .site-nav{width:calc(100% - 24px);top:12px}
  .nav-inner{height:58px;padding:0 8px 0 14px;gap:12px}
  .brand-text{font-size:14px}
  .hero{padding-top:132px}
  .hero h1{font-size:clamp(30px,8vw,42px)}
  .hero-sub{font-size:16px}
  .hero-cta .btn{width:100%}
  .hero-stats{grid-template-columns:1fr;border-top:1px solid rgba(255,255,255,.16)}
  .stat{padding:20px 0}
  .stat + .stat{border-left:0;border-top:1px solid rgba(255,255,255,.16);padding-left:0;padding-top:20px}
  .stat-num{font-size:36px}
  .trust-inner{grid-template-columns:1fr}
  .trust-item{padding:16px 0;border-left:0 !important}
  .trust-item + .trust-item{border-top:1px solid var(--line)}
  .section{padding:56px 0}
  .section-dark{padding:56px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:18px;margin-bottom:28px}
  .section-head-side{padding-bottom:0}
  .level{grid-template-columns:1fr;gap:10px;padding:26px 0}
  .level-num{font-size:44px}
  .level-body{max-width:100%}
  .reel-card{flex:0 0 78%}
  .reel-fade{display:none}
  .news-mini-grid{grid-template-columns:1fr}
  .post-mini-thumb{flex:0 0 92px}
  .cta-band{padding:40px 22px;border-radius:var(--r-card)}
  .cta-actions{flex-direction:column;align-items:stretch}
  .cta-actions .btn{width:100%}
  .cta-points{flex-direction:column;align-items:center;gap:10px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .site-footer{padding:56px 0 32px;border-radius:16px 16px 0 0;margin-top:64px}
  .faq-q{font-size:16px}
}

@media (max-width:420px){
  .container{padding:0 14px}
  .brand-text{font-size:13px}
  .hero h1{font-size:30px}
  .stat-num{font-size:32px}
  .level-num{font-size:38px}
  .reel-card{flex:0 0 86%}
  .compact-meta{display:none}
}

/* roulang page: category1 */
:root{
  --ink-900:#0C0E0F;
  --ink-700:#22282A;
  --ink-500:#4C5559;
  --ink-300:#8A9296;
  --line:#E3E0D8;
  --paper:#F7F5EF;
  --surface:#FFFFFF;
  --surface-2:#EFEDE6;
  --brand:#C6F24E;
  --brand-strong:#A9D93A;
  --brand-soft:#EEF8D2;
  --ember:#FF6A3D;
  --shadow-1:0 1px 2px rgba(12,14,15,.04),0 8px 24px -12px rgba(12,14,15,.10);
  --shadow-2:0 18px 40px -18px rgba(12,14,15,.22);
  --r-card:16px;
  --r-lg:20px;
  --r-input:12px;
  --r-pill:999px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --font:"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.9;
  color:var(--ink-700);
  background:var(--paper);
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;border-radius:var(--r-input);}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;color:var(--ink-900);font-weight:700;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
svg{display:block;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
.reading{max-width:760px;}

/* ============ 悬浮胶囊导航 ============ */
.site-header{
  position:fixed;
  top:16px;
  left:0;
  right:0;
  z-index:80;
  padding:0 24px;
  pointer-events:none;
}
.nav-pill{
  pointer-events:auto;
  max-width:1160px;
  margin:0 auto;
  height:64px;
  display:flex;
  align-items:center;
  gap:24px;
  padding:0 12px 0 20px;
  border-radius:var(--r-pill);
  border:1px solid var(--line);
  background:rgba(247,245,239,.82);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow-1);
  transition:background .2s var(--ease),box-shadow .2s var(--ease);
}
.site-header.is-scrolled .nav-pill{
  background:rgba(247,245,239,.95);
  box-shadow:var(--shadow-2);
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  padding:6px 8px;
  border-radius:var(--r-pill);
  transition:background .2s var(--ease);
}
.brand:hover{background:var(--surface);}
.brand svg{width:26px;height:26px;color:var(--ink-900);}
.brand-name{
  font-size:16px;
  font-weight:800;
  color:var(--ink-900);
  letter-spacing:-.01em;
  white-space:nowrap;
}
.brand-short{display:none;font-size:16px;font-weight:800;color:var(--ink-900);}
.nav-links{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:auto;
}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  min-height:44px;
  padding:0 16px;
  font-size:15px;
  font-weight:600;
  color:var(--ink-500);
  border-radius:var(--r-pill);
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.nav-link:hover{background:var(--surface);color:var(--ink-900);transform:translateY(-1px);}
.nav-link.is-active{
  background:var(--brand-soft);
  color:var(--ink-900);
}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:16px;
  right:16px;
  bottom:8px;
  height:2px;
  border-radius:2px;
  background:var(--brand);
}
.nav-actions{display:flex;align-items:center;gap:8px;flex:0 0 auto;}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  align-items:center;justify-content:center;
  border:1px solid var(--line);
  background:var(--surface);
  border-radius:var(--r-pill);
  cursor:pointer;
  color:var(--ink-900);
}
.nav-toggle svg{width:20px;height:20px;}

/* 移动浮层 */
.mobile-menu{
  pointer-events:auto;
  display:none;
  position:fixed;
  inset:0;
  z-index:79;
  background:var(--paper);
  padding:96px 20px 24px;
  flex-direction:column;
  overflow-y:auto;
}
.mobile-menu.is-open{display:flex;}
.mobile-menu a.m-link{
  display:block;
  padding:20px 4px;
  font-size:20px;
  font-weight:700;
  color:var(--ink-900);
  border-bottom:1px solid var(--line);
}
.mobile-menu a.m-link.is-active{color:var(--ink-900);background:var(--brand-soft);border-radius:12px;padding-left:12px;}
.mobile-menu .m-cta{margin-top:auto;padding-top:32px;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:52px;
  padding:0 28px;
  border-radius:var(--r-pill);
  font-size:15px;
  font-weight:700;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .2s var(--ease),background .2s var(--ease),color .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.btn-sm{min-height:40px;padding:0 20px;font-size:14px;}
.btn-primary{background:var(--brand);color:var(--ink-900);}
.btn-primary:hover{background:var(--brand-strong);transform:translateY(-2px);box-shadow:var(--shadow-2);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{background:transparent;border-color:var(--ink-900);color:var(--ink-900);}
.btn-ghost:hover{background:var(--ink-900);color:var(--paper);}
.btn-ghost-dark{background:transparent;border-color:rgba(255,255,255,.5);color:#fff;}
.btn-ghost-dark:hover{background:#fff;color:var(--ink-900);border-color:#fff;}
.btn:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible{
  outline:2px solid var(--ink-900);
  outline-offset:2px;
}
.link-btn{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:15px;
  font-weight:700;
  color:var(--ink-900);
  background-image:linear-gradient(currentColor,currentColor);
  background-size:0% 1px;
  background-repeat:no-repeat;
  background-position:0 100%;
  transition:background-size .24s var(--ease);
  padding-bottom:2px;
}
.link-btn:hover{background-size:100% 1px;}
.link-btn svg{width:16px;height:16px;transition:transform .2s var(--ease);}
.link-btn:hover svg{transform:translateX(4px);}
.link-btn.back:hover svg{transform:translateX(-4px);}
.link-btn-light{color:#fff;}
.link-btn-light:focus-visible{outline-color:#fff;}

/* ============ 页头 ============ */
.page-hero{
  position:relative;
  min-height:320px;
  display:flex;
  align-items:flex-end;
  padding:140px 0 48px;
  background-image:
    linear-gradient(180deg,rgba(12,14,15,.58) 0%,rgba(12,14,15,.86) 78%),
    url("/assets/images/backpic/back-1.webp");
  background-size:cover;
  background-position:center;
  color:#fff;
  overflow:hidden;
  border-bottom-left-radius:var(--r-lg);
  border-bottom-right-radius:var(--r-lg);
}
.page-hero::after{
  content:"";
  position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:48px 48px;
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:1;}
.crumbs{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  font-size:13px;
  color:rgba(255,255,255,.68);
  margin-bottom:20px;
}
.crumbs a{color:rgba(255,255,255,.68);}
.crumbs a:hover{color:var(--brand);}
.crumbs .sep{width:12px;height:12px;opacity:.6;}
.crumbs .current{color:#fff;}
.hero-眉标{display:none;}
.eyebrow{
  display:inline-block;
  font-size:12px;
  font-weight:600;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--brand);
  margin-bottom:14px;
}
.page-hero h1{
  color:#fff;
  font-size:clamp(30px,4.4vw,52px);
  line-height:1.08;
  font-weight:800;
  letter-spacing:-.03em;
}
.page-hero .hero-sub{
  margin-top:16px;
  max-width:620px;
  font-size:16px;
  line-height:1.8;
  color:rgba(255,255,255,.78);
}
.hero-foot{
  margin-top:28px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  flex-wrap:wrap;
}

/* ============ 通用板块 ============ */
main{display:block;}
.section{padding:96px 0;}
.section.tight{padding:72px 0;}
.section-head{max-width:680px;margin-bottom:40px;}
.section-head h2{
  font-size:clamp(26px,3.2vw,38px);
  line-height:1.2;
  letter-spacing:-.02em;
}
.section-head .eyebrow{color:var(--ink-300);}
.section-head p{
  margin-top:14px;
  font-size:15px;
  line-height:1.75;
  color:var(--ink-500);
}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}

/* ============ 步骤条 ============ */
.steps{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
}
.step{
  position:relative;
  padding:24px 20px 24px 0;
}
.step::before{
  content:"";
  position:absolute;
  top:44px;left:56px;right:-24px;
  height:1px;
  background:var(--line);
}
.step:last-child::before{display:none;}
.step-num{
  width:52px;height:52px;
  border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-size:20px;font-weight:800;
  color:var(--ink-900);
  background:var(--surface);
  border:1px solid var(--line);
  position:relative;z-index:1;
}
.step.is-current .step-num{background:var(--brand);border-color:var(--brand);}
.step h3{font-size:16px;font-weight:700;margin-top:20px;line-height:1.45;}
.step p{margin-top:10px;font-size:15px;line-height:1.75;color:var(--ink-500);}
.step-figs{
  margin-top:56px;
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:24px;
}
.step-figs figure{margin:0;}
.step-figs img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  border-radius:var(--r-input);
}
.step-figs figcaption{
  margin-top:12px;
  font-size:13px;
  color:var(--ink-300);
  letter-spacing:.02em;
}

/* ============ 图文交替 ============ */
.split{
  display:grid;
  gap:56px;
  align-items:center;
}
.split.a{grid-template-columns:7fr 5fr;}
.split.b{grid-template-columns:5fr 7fr;}
.split .txt h2{
  font-size:clamp(22px,2.4vw,30px);
  line-height:1.25;
  letter-spacing:-.02em;
  margin-bottom:18px;
  padding-left:16px;
  border-left:4px solid var(--brand);
}
.split .txt p{font-size:16px;line-height:1.9;color:var(--ink-700);}
.split .txt p + p{margin-top:14px;}
.split .txt .link-btn{margin-top:22px;}
.split .fig img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  border-radius:var(--r-lg);
  box-shadow:var(--shadow-1);
}
.split + .split{margin-top:96px;}

/* ============ callout ============ */
.callouts{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.callout{
  border-radius:var(--r-input);
  padding:16px 20px;
  font-size:15px;
  line-height:1.8;
  border-left:4px solid var(--ink-900);
  background:var(--surface-2);
  color:var(--ink-700);
}
.callout b{color:var(--ink-900);font-weight:700;}
.callout.note{background:var(--brand-soft);border-left-color:var(--brand);}
.callout.risk{
  background:transparent;
  border:1px solid var(--ember);
  border-left:4px solid var(--ember);
  color:var(--ink-700);
}

/* ============ 清单 ============ */
.check-list{
  margin-top:40px;
  border-top:1px solid var(--line);
}
.check-list li{
  display:flex;
  align-items:flex-start;
  gap:14px;
  min-height:64px;
  padding:20px 16px;
  border-bottom:1px solid var(--line);
  font-size:16px;
  line-height:1.7;
  transition:background .2s var(--ease);
}
.check-list li:hover{background:var(--surface);}
.check-list li svg{
  width:20px;height:20px;
  flex:0 0 auto;
  margin-top:6px;
  color:var(--ink-900);
}

/* ============ FAQ ============ */
.faq-wrap{
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:56px;
  align-items:start;
}
.faq-aside{position:sticky;top:120px;}
.faq-aside h2{
  font-size:clamp(24px,2.8vw,34px);
  line-height:1.2;
  letter-spacing:-.02em;
}
.faq-aside p{margin-top:14px;font-size:15px;line-height:1.75;color:var(--ink-500);}
.faq-list{max-width:860px;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:22px 4px;
  background:transparent;
  border:0;
  text-align:left;
  cursor:pointer;
  font-size:17px;
  font-weight:700;
  color:var(--ink-900);
  line-height:1.55;
}
.faq-q:hover{color:var(--ink-700);}
.faq-q .plus{
  flex:0 0 auto;
  width:22px;height:22px;
  color:var(--ink-500);
  transition:transform .24s var(--ease);
}
.faq-item.is-open .faq-q .plus{transform:rotate(45deg);color:var(--ink-900);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .24s var(--ease),opacity .24s var(--ease);
  opacity:0;
}
.faq-item.is-open .faq-a{opacity:1;}
.faq-a p{
  padding:0 4px 20px;
  font-size:15px;
  line-height:1.85;
  color:var(--ink-500);
}

/* ============ 深色 CTA ============ */
.cta-band{
  background:var(--ink-900);
  color:#fff;
  border-radius:var(--r-lg);
  padding:64px 56px;
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:40px;
  align-items:center;
  position:relative;
  overflow:hidden;
}
.cta-band::after{
  content:"";
  position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:48px 48px;
  pointer-events:none;
}
.cta-band > *{position:relative;z-index:1;}
.cta-band h2{color:#fff;font-size:clamp(24px,3vw,36px);line-height:1.2;letter-spacing:-.02em;}
.cta-band p{margin-top:14px;font-size:16px;line-height:1.8;color:rgba(255,255,255,.72);max-width:520px;}
.cta-actions{display:flex;flex-direction:column;gap:18px;align-items:flex-start;}
.cta-actions .btn{width:100%;max-width:280px;}
.guards{margin-top:22px;display:grid;gap:10px;}
.guards li{
  display:flex;align-items:center;gap:10px;
  font-size:13px;color:rgba(255,255,255,.66);
}
.guards svg{width:16px;height:16px;color:var(--brand);flex:0 0 auto;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--ink-900);
  color:#fff;
  border-top-left-radius:var(--r-lg);
  border-top-right-radius:var(--r-lg);
  padding:72px 0 40px;
  margin-top:96px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1fr;
  gap:40px;
}
.footer-brand{
  display:flex;align-items:center;gap:10px;
  color:#fff;font-weight:800;font-size:17px;margin-bottom:16px;
}
.footer-brand svg{width:24px;height:24px;color:var(--brand);}
.footer-text{font-size:14px;line-height:1.75;color:rgba(255,255,255,.72);max-width:320px;}
.footer-col h3{
  font-size:13px;
  font-weight:600;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:rgba(255,255,255,.5);
  margin-bottom:18px;
}
.footer-col ul li{margin-bottom:12px;}
.footer-link{
  font-size:14px;
  color:rgba(255,255,255,.72);
  background-image:linear-gradient(currentColor,currentColor);
  background-size:0% 1px;
  background-repeat:no-repeat;
  background-position:0 100%;
  transition:color .2s var(--ease),background-size .24s var(--ease);
  padding-bottom:2px;
}
.footer-link:hover{color:var(--brand);background-size:100% 1px;}
.footer-bottom{
  margin-top:56px;
  padding-top:24px;
  border-top:1px solid rgba(255,255,255,.08);
  display:flex;
  justify-content:space-between;
  gap:20px;
  flex-wrap:wrap;
  font-size:13px;
  color:rgba(255,255,255,.5);
}

/* 入场动效 */
.reveal{opacity:0;transform:translateY(8px);transition:opacity .5s var(--ease),transform .5s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}

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

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .container{padding:0 24px;}
  .section{padding:80px 0;}
  .split{gap:40px;}
}
@media (max-width:1023px){
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;}
  .brand-name{display:none;}
  .brand-short{display:inline;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .step::before{display:none;}
  .callouts{grid-template-columns:1fr;}
  .faq-wrap{grid-template-columns:1fr;gap:32px;}
  .faq-aside{position:static;}
  .cta-band{grid-template-columns:1fr;padding:48px 32px;}
  .split.a,.split.b{grid-template-columns:1fr;}
  .split .fig{order:-1;}
  .split + .split{margin-top:64px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:767px){
  body{font-size:15px;line-height:1.85;}
  .container{padding:0 18px;}
  .site-header{padding:0 14px;top:12px;}
  .nav-pill{height:56px;padding:0 8px 0 14px;gap:12px;}
  .brand svg{width:24px;height:24px;}
  .section{padding:56px 0;}
  .section.tight{padding:48px 0;}
  .page-hero{min-height:240px;padding:120px 0 36px;}
  .steps{grid-template-columns:1fr;}
  .step{padding:16px 0;}
  .step-num{width:44px;height:44px;font-size:18px;}
  .step-figs{grid-template-columns:1fr;margin-top:40px;}
  .cta-band{padding:36px 22px;}
  .cta-actions .btn{max-width:none;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .footer-bottom{flex-direction:column;gap:10px;}
  .faq-q{font-size:16px;}
}
@media (max-width:420px){
  .container{padding:0 14px;}
  .page-hero h1{font-size:28px;}
  .step h3{font-size:15px;}
  .guards li{font-size:12px;}
}

/* roulang page: article */
:root{
  --ink-900:#0C0E0F;
  --ink-700:#22282A;
  --ink-500:#4C5559;
  --ink-300:#8A9296;
  --line:#E3E0D8;
  --paper:#F7F5EF;
  --surface:#FFFFFF;
  --surface-2:#EFEDE6;
  --brand:#C6F24E;
  --brand-strong:#A9D93A;
  --brand-soft:#EEF8D2;
  --ember:#FF6A3D;
  --radius-card:16px;
  --radius-lg:20px;
  --radius-input:12px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(12,14,15,.04), 0 8px 24px -12px rgba(12,14,15,.10);
  --shadow-2:0 18px 40px -18px rgba(12,14,15,.22);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;line-height:1.9;color:var(--ink-700);background:var(--paper);
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer;}
h1,h2,h3,h4{margin:0;color:var(--ink-900);font-weight:700;letter-spacing:-.02em;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--ink-900);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}

/* ---------- 顶部悬浮胶囊导航 ---------- */
.site-header{
  position:fixed;top:16px;left:50%;transform:translateX(-50%);
  width:calc(100% - 40px);max-width:1160px;min-height:64px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:0 12px 0 20px;border-radius:var(--radius-pill);
  background:rgba(247,245,239,.82);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border:1px solid var(--line);box-shadow:var(--shadow-1);
  z-index:100;transition:background .2s var(--ease),box-shadow .2s var(--ease);
}
.site-header.is-scrolled{background:rgba(247,245,239,.95);box-shadow:var(--shadow-2);}
.brand{display:flex;align-items:center;gap:10px;min-height:44px;font-size:16px;font-weight:800;color:var(--ink-900);letter-spacing:-.01em;}
.brand-mark{width:30px;height:30px;flex:0 0 auto;display:grid;place-items:center;border-radius:10px;background:var(--brand);color:var(--ink-900);}
.brand-mark svg{width:18px;height:18px;}
.nav-links{display:flex;align-items:center;gap:4px;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;min-height:40px;
  padding:8px 14px;border-radius:var(--radius-pill);
  font-size:14px;font-weight:600;color:var(--ink-700);
  transition:background .18s var(--ease),transform .18s var(--ease),color .18s var(--ease);
}
.nav-link:hover{background:var(--surface);transform:translateY(-1px);}
.nav-link.is-active{background:var(--brand-soft);color:var(--ink-900);}
.nav-link.is-active::after{
  content:"";position:absolute;left:50%;bottom:4px;transform:translateX(-50%);
  width:16px;height:2px;border-radius:2px;background:var(--brand);
}
.nav-right{display:flex;align-items:center;gap:8px;}
.nav-toggle{display:none;width:44px;height:44px;align-items:center;justify-content:center;border-radius:var(--radius-pill);color:var(--ink-900);}
.nav-toggle:hover{background:var(--surface);}
.nav-toggle svg{width:22px;height:22px;}
.nav-cta-mobile{display:none;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:52px;padding:0 28px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:700;border:1px solid transparent;cursor:pointer;
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.btn-sm{min-height:40px;padding:0 20px;font-size:14px;}
.btn-primary{background:var(--brand);color:var(--ink-900);}
.btn-primary:hover{background:var(--brand-strong);transform:translateY(-2px);box-shadow:var(--shadow-2);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{border-color:var(--ink-900);color:var(--ink-900);background:transparent;}
.btn-ghost:hover{background:var(--ink-900);color:var(--paper);}
.btn-ghost-light{border-color:rgba(255,255,255,.55);color:#fff;background:transparent;}
.btn-ghost-light:hover{background:#fff;color:var(--ink-900);}
.text-link{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:700;color:var(--ink-900);
  background-image:linear-gradient(var(--ink-900),var(--ink-900));
  background-size:0% 1px;background-repeat:no-repeat;background-position:left 100%;
  transition:background-size .24s var(--ease);
}
.text-link:hover{background-size:100% 1px;}
.text-link svg{width:16px;height:16px;transition:transform .24s var(--ease);}
.text-link:hover svg{transform:translateX(4px);}

/* ---------- 徽章与标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:var(--radius-pill);
  font-size:12px;font-weight:700;letter-spacing:.02em;
  background:var(--brand-soft);color:var(--ink-900);
}
.chip{
  display:inline-flex;align-items:center;padding:6px 14px;border-radius:var(--radius-pill);
  background:var(--surface-2);color:var(--ink-700);font-size:13px;font-weight:600;
  transition:background .18s var(--ease),color .18s var(--ease);
}
.chip:hover{background:var(--brand-soft);color:var(--ink-900);}

/* ---------- 文章头部 ---------- */
.article-top{padding:124px 0 0;}
.breadcrumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:13px;color:var(--ink-300);letter-spacing:.02em;margin-bottom:28px;
}
.breadcrumb a{color:var(--ink-300);transition:color .18s var(--ease);}
.breadcrumb a:hover{color:var(--ink-900);}
.crumb-sep{width:12px;height:12px;flex:0 0 auto;color:var(--ink-300);}
.breadcrumb .current{color:var(--ink-900);font-weight:600;max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;display:inline-block;vertical-align:bottom;}
.article-head{max-width:860px;}
.article-head h1{
  font-size:clamp(28px,4vw,46px);line-height:1.18;letter-spacing:-.03em;font-weight:800;
  margin:18px 0 20px;overflow-wrap:break-word;
}
.meta-row{
  display:flex;align-items:center;flex-wrap:wrap;gap:14px;
  font-size:13px;color:var(--ink-300);letter-spacing:.02em;
}
.meta-sep{width:1px;height:12px;background:var(--line);display:inline-block;}
.copy-btn{font-size:13px;font-weight:700;color:var(--ink-900);margin-left:auto;}

/* ---------- 正文阅读区 ---------- */
.article-main{padding:56px 0 0;}
.article-body{
  max-width:760px;margin:0 auto;font-size:17px;line-height:1.9;color:var(--ink-700);
  overflow-wrap:break-word;word-break:break-word;
}
.article-body p{margin:0 0 1.2em;}
.article-body h2{
  position:relative;font-size:clamp(22px,2.4vw,28px);line-height:1.32;font-weight:700;
  margin:40px 0 20px;padding-left:16px;color:var(--ink-900);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;border-radius:2px;background:var(--brand);
}
.article-body h3{font-size:22px;line-height:1.35;font-weight:700;margin:32px 0 16px;color:var(--ink-900);}
.article-body h4{font-size:18px;font-weight:700;margin:24px 0 12px;}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:0;}
.article-body ul li{position:relative;padding-left:22px;margin:10px 0;}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:.72em;width:7px;height:7px;border-radius:2px;background:var(--brand);
}
.article-body ol{counter-reset:item;}
.article-body ol li{position:relative;padding-left:30px;margin:10px 0;counter-increment:item;}
.article-body ol li::before{
  content:counter(item)".";position:absolute;left:0;top:0;
  font-variant-numeric:tabular-nums;font-weight:700;color:var(--ink-900);
}
.article-body blockquote{
  margin:28px 0;padding:20px 24px;border-radius:var(--radius-input);
  background:var(--brand-soft);border-left:4px solid var(--brand);color:var(--ink-700);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body a{
  color:var(--ink-900);font-weight:600;
  border-bottom:1px solid var(--brand);
  transition:border-color .18s var(--ease),color .18s var(--ease);
}
.article-body a:hover{border-color:var(--ink-900);}
.article-body img{border-radius:12px;margin:24px 0 8px;}
.article-body figure{margin:24px 0;}
.article-body figcaption{font-size:13px;color:var(--ink-300);margin-top:8px;text-align:center;}
.article-body table{
  display:block;width:100%;overflow-x:auto;border-collapse:collapse;font-size:15px;
  background:var(--surface);border-radius:var(--radius-input);
}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left;}
.article-body th{background:var(--surface-2);font-weight:700;color:var(--ink-900);}
.article-body code{
  background:var(--surface-2);border-radius:6px;padding:2px 6px;
  font-size:14px;font-variant-numeric:tabular-nums;
}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0;}

.empty-state{
  border:1px dashed var(--line);border-radius:var(--radius-card);min-height:200px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;
  font-size:15px;color:var(--ink-500);text-align:center;padding:32px;
}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0;}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;
}
.section-head h2{font-size:clamp(26px,3.2vw,38px);line-height:1.2;letter-spacing:-.02em;}
.eyebrow{
  font-size:12px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;
  color:var(--ink-300);margin-bottom:10px;
}
.section-desc{font-size:15px;line-height:1.75;color:var(--ink-500);margin-top:12px;max-width:620px;}

/* ---------- 相关推荐卡片 ---------- */
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.card{
  display:flex;flex-direction:column;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);}
.card-media{position:relative;overflow:hidden;aspect-ratio:4/3;background:var(--ink-900);}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .24s var(--ease);}
.card:hover .card-media img{transform:scale(1.03);}
.card-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-title{font-size:18px;line-height:1.45;font-weight:700;color:var(--ink-900);}
.card:hover .card-title{text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px;}
.card-summary{font-size:15px;line-height:1.75;color:var(--ink-500);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-meta{
  margin-top:auto;display:flex;align-items:center;gap:10px;
  font-size:13px;color:var(--ink-300);letter-spacing:.02em;
}
.card-meta svg{width:16px;height:16px;color:var(--ink-900);transition:transform .24s var(--ease);}
.card:hover .card-meta svg{transform:translateX(4px);}

/* ---------- 深色 CTA 带 ---------- */
.cta-band{
  background:var(--ink-900);border-radius:var(--radius-lg);color:#fff;
  padding:56px 48px;display:flex;align-items:center;justify-content:space-between;gap:40px;
  flex-wrap:wrap;position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.35;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:48px 48px;
}
.cta-copy{position:relative;z-index:1;max-width:560px;}
.cta-copy .eyebrow{color:rgba(255,255,255,.5);}
.cta-copy h2{color:#fff;font-size:clamp(24px,3vw,34px);line-height:1.22;margin-bottom:12px;}
.cta-copy p{font-size:15px;line-height:1.8;color:rgba(255,255,255,.72);}
.cta-actions{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:12px;align-items:center;}
.cta-points{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:20px;width:100%;margin-top:8px;}
.cta-points li{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.72);}
.cta-points svg{width:16px;height:16px;color:var(--brand);}

/* ---------- 返回入口条 ---------- */
.back-row{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;padding-top:40px;}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:96px;background:var(--ink-900);color:#fff;
  border-radius:var(--radius-lg) var(--radius-lg) 0 0;
  padding:72px 0 40px;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:800;color:#fff;margin-bottom:16px;}
.footer-brand svg{width:24px;height:24px;color:var(--brand);}
.footer-text{font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);max-width:340px;}
.footer-col h3{
  font-size:13px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;
  color:rgba(255,255,255,.5);margin-bottom:18px;
}
.footer-col ul{display:flex;flex-direction:column;gap:12px;}
.footer-link{
  font-size:14px;color:rgba(255,255,255,.72);
  background-image:linear-gradient(var(--brand),var(--brand));
  background-size:0% 1px;background-repeat:no-repeat;background-position:left 100%;
  transition:color .2s var(--ease),background-size .24s var(--ease);
}
.footer-link:hover{color:var(--brand);background-size:100% 1px;}
.footer-bottom{
  margin-top:56px;padding-top:24px;border-top:1px solid rgba(255,255,255,.08);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);line-height:1.7;
}

/* ---------- 入场动效 ---------- */
.reveal{opacity:0;transform:translateY(8px);transition:opacity .3s var(--ease),transform .3s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .container{padding:0 24px;}
  .section{padding:72px 0;}
  .site-footer{margin-top:72px;padding:56px 0 32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-band{padding:44px 32px;}
}
@media (max-width:767px){
  body{font-size:15px;line-height:1.85;}
  .container{padding:0 18px;}
  .site-header{top:12px;width:calc(100% - 24px);min-height:60px;padding:0 10px 0 14px;}
  .site-header.nav-open{
    -webkit-backdrop-filter:none;backdrop-filter:none;
    background:transparent;border-color:transparent;box-shadow:none;
  }
  .brand{font-size:15px;}
  .nav-toggle{display:inline-flex;}
  .nav-cta-desktop{display:none;}
  .nav-links{
    position:fixed;inset:0;z-index:90;
    display:flex;flex-direction:column;align-items:stretch;justify-content:flex-start;gap:0;
    padding:96px 24px 48px;background:var(--paper);
    opacity:0;transform:translateY(-12px);pointer-events:none;overflow-y:auto;
    transition:opacity .24s var(--ease),transform .24s var(--ease);
  }
  .site-header.nav-open .nav-links{opacity:1;transform:none;pointer-events:auto;}
  .nav-link{
    display:block;width:100%;min-height:auto;font-size:20px;font-weight:700;
    padding:18px 4px;border-radius:0;border-bottom:1px solid var(--line);
    transform:none;background:transparent;
  }
  .nav-link:hover{background:transparent;transform:none;}
  .nav-link.is-active{background:transparent;color:var(--ink-900);}
  .nav-link.is-active::after{display:none;}
  .nav-cta-mobile{
    display:inline-flex;width:100%;margin-top:32px;
  }
  .article-top{padding:104px 0 0;}
  .breadcrumb .current{max-width:180px;}
  .article-main{padding:40px 0 0;}
  .article-body{font-size:16px;line-height:1.9;}
  .meta-row{gap:10px;font-size:12px;}
  .copy-btn{margin-left:0;}
  .section{padding:56px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:16px;margin-bottom:28px;}
  .related-grid{grid-template-columns:1fr;gap:16px;}
  .cta-band{padding:32px 22px;border-radius:var(--radius-card);}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .back-row{flex-direction:column;align-items:flex-start;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .footer-text{max-width:none;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px;}
}
@media (max-width:420px){
  .container{padding:0 14px;}
  .brand-text{font-size:14px;}
  .article-head h1{font-size:26px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;transition-duration:.01ms !important;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category2 */
:root{
  --ink-900:#0C0E0F;
  --ink-700:#22282A;
  --ink-500:#4C5559;
  --ink-300:#8A9296;
  --line:#E3E0D8;
  --paper:#F7F5EF;
  --surface:#FFFFFF;
  --surface-2:#EFEDE6;
  --brand:#C6F24E;
  --brand-strong:#A9D93A;
  --brand-soft:#EEF8D2;
  --ember:#FF6A3D;
  --radius-sm:12px;
  --radius-card:16px;
  --radius-lg:20px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(12,14,15,.04),0 8px 24px -12px rgba(12,14,15,.10);
  --shadow-2:0 18px 40px -18px rgba(12,14,15,.22);
  --ease:cubic-bezier(.22,.61,.36,1);
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.9;
  color:var(--ink-700);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
body.menu-open{overflow:hidden;}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;border:0;background:none;cursor:pointer;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
svg{display:block;}
:focus-visible{outline:2px solid var(--ink-900);outline-offset:2px;border-radius:6px;}
.tnum{font-variant-numeric:tabular-nums;letter-spacing:.02em;}

.container{max-width:1200px;margin:0 auto;padding:0 32px;}

/* ---------- 悬浮胶囊导航 ---------- */
.site-header{
  position:fixed;
  top:16px;
  left:0;
  right:0;
  z-index:60;
  display:flex;
  justify-content:center;
  pointer-events:none;
  padding:0 16px;
}
.nav-pill{
  pointer-events:auto;
  width:100%;
  max-width:1160px;
  height:64px;
  display:flex;
  align-items:center;
  gap:20px;
  padding:0 12px 0 20px;
  border-radius:var(--radius-pill);
  border:1px solid var(--line);
  background:rgba(247,245,239,.82);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow-1);
  transition:box-shadow .2s var(--ease),background .2s var(--ease);
}
.site-header.is-scrolled .nav-pill{
  background:rgba(247,245,239,.94);
  box-shadow:var(--shadow-2);
}
.brand{display:flex;align-items:center;gap:10px;min-width:0;flex-shrink:0;}
.brand-mark{width:32px;height:32px;display:grid;place-items:center;border-radius:10px;background:var(--ink-900);color:var(--brand);flex-shrink:0;}
.brand-mark svg{width:19px;height:19px;}
.brand-name{font-size:15px;font-weight:700;color:var(--ink-900);white-space:nowrap;letter-spacing:-.01em;}
.brand-name-short{display:none;font-size:15px;font-weight:800;color:var(--ink-900);}

.nav-links{display:flex;align-items:center;gap:4px;margin-left:8px;}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:40px;
  padding:0 14px;
  border-radius:var(--radius-pill);
  font-size:15px;
  font-weight:600;
  color:var(--ink-500);
  transition:background .18s var(--ease),color .18s var(--ease),transform .18s var(--ease);
}
.nav-link:hover{background:var(--surface);color:var(--ink-900);transform:translateY(-1px);}
.nav-link.is-active{background:var(--brand-soft);color:var(--ink-900);}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:4px;
  height:2px;border-radius:2px;background:var(--brand);
}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:10px;flex-shrink:0;}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  align-items:center;justify-content:center;
  border-radius:var(--radius-pill);
  border:1px solid var(--line);
  background:var(--surface);
  color:var(--ink-900);
}
.nav-toggle svg{width:20px;height:20px;}

.mobile-menu{
  pointer-events:auto;
  position:fixed;
  inset:0;
  z-index:70;
  display:none;
  flex-direction:column;
  background:var(--paper);
  opacity:0;
  visibility:hidden;
  transition:opacity .2s var(--ease),visibility .2s var(--ease);
}
.mobile-menu.is-open{opacity:1;visibility:visible;}
.mobile-menu-head{display:flex;align-items:center;justify-content:space-between;padding:20px 18px;border-bottom:1px solid var(--line);}
.mobile-menu-head .brand-name{font-size:15px;}
.mobile-menu-close{width:44px;height:44px;display:grid;place-items:center;border-radius:var(--radius-pill);border:1px solid var(--line);background:var(--surface);}
.mobile-menu-close svg{width:20px;height:20px;}
.mobile-menu-body{flex:1;overflow-y:auto;padding:8px 18px 24px;}
.mobile-menu-body a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:60px;
  font-size:20px;font-weight:700;color:var(--ink-900);
  border-bottom:1px solid var(--line);
}
.mobile-menu-body a:last-child{border-bottom:0;}
.mobile-menu-body a.is-active{color:var(--ink-900);}
.mobile-menu-body a.is-active::after{content:"";width:8px;height:8px;border-radius:50%;background:var(--brand);}
.mobile-menu-body a svg{width:18px;height:18px;color:var(--ink-300);}
.mobile-menu-foot{padding:16px 18px calc(16px + env(safe-area-inset-bottom));border-top:1px solid var(--line);}
.mobile-menu-foot .btn{width:100%;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:52px;
  padding:0 28px;
  border-radius:var(--radius-pill);
  font-size:15px;
  font-weight:700;
  letter-spacing:.01em;
  white-space:nowrap;
  transition:transform .18s var(--ease),background .18s var(--ease),box-shadow .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.btn-primary{background:var(--brand);color:var(--ink-900);}
.btn-primary:hover{background:var(--brand-strong);transform:translateY(-2px);box-shadow:var(--shadow-2);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{background:transparent;border:1px solid var(--ink-900);color:var(--ink-900);}
.btn-ghost:hover{background:var(--ink-900);color:var(--paper);}
.btn-sm{height:44px;padding:0 22px;font-size:14px;}
.btn-dark-ghost{background:transparent;border:1px solid rgba(255,255,255,.7);color:#fff;}
.btn-dark-ghost:hover{background:#fff;color:var(--ink-900);border-color:#fff;}

.link-btn{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:15px;
  font-weight:700;
  color:var(--ink-900);
  padding:6px 0;
  background-image:linear-gradient(var(--brand),var(--brand));
  background-repeat:no-repeat;
  background-position:0 100%;
  background-size:0 2px;
  transition:background-size .22s var(--ease);
}
.link-btn:hover{background-size:100% 2px;}
.link-btn svg{width:16px;height:16px;transition:transform .2s var(--ease);}
.link-btn:hover svg{transform:translateX(4px);}
.link-btn.is-back:hover svg{transform:translateX(-4px);}
.link-btn.on-dark{color:#fff;background-image:linear-gradient(var(--brand),var(--brand));}

/* ---------- 页头 ---------- */
.page-head{
  position:relative;
  padding:158px 0 80px;
  background:
    radial-gradient(1100px 420px at 84% -20%, rgba(198,242,78,.30), rgba(198,242,78,0) 70%),
    linear-gradient(180deg,var(--paper),var(--surface-2));
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.page-head::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:linear-gradient(rgba(12,14,15,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(12,14,15,.035) 1px,transparent 1px);
  background-size:48px 48px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.5),transparent 82%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.5),transparent 82%);
  pointer-events:none;
}
.page-head .container{position:relative;z-index:1;}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-300);letter-spacing:.02em;}
.breadcrumb a{color:var(--ink-300);transition:color .18s var(--ease);}
.breadcrumb a:hover{color:var(--ink-900);}
.breadcrumb svg{width:12px;height:12px;color:var(--ink-300);}
.breadcrumb .current{color:var(--ink-900);font-weight:600;}

.head-grid{
  display:grid;
  grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);
  gap:56px;
  align-items:end;
  margin-top:32px;
}
.eyebrow{
  display:inline-block;
  font-size:12px;
  font-weight:600;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--ink-300);
  margin-bottom:16px;
}
.page-title{
  font-size:clamp(30px,4.2vw,52px);
  line-height:1.08;
  font-weight:800;
  letter-spacing:-.03em;
  color:var(--ink-900);
  max-width:15em;
}
.h1-brand{color:var(--ink-500);font-weight:700;}
.h1-sep{display:inline-block;margin:0 12px;color:var(--brand);font-weight:800;}
.page-sub{
  margin-top:20px;
  font-size:17px;
  line-height:1.85;
  color:var(--ink-500);
  max-width:34em;
}
.head-actions{margin-top:28px;display:flex;flex-wrap:wrap;gap:12px;}

.head-stats{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  background:rgba(255,255,255,.72);
  box-shadow:var(--shadow-1);
  overflow:hidden;
}
.stat-cell{
  padding:24px 20px;
  border-right:1px solid var(--line);
}
.stat-cell:last-child{border-right:0;}
.stat-num{
  font-size:44px;
  line-height:1;
  font-weight:800;
  color:var(--ink-900);
  font-variant-numeric:tabular-nums;
  letter-spacing:.01em;
}
.stat-cell.is-brand .stat-num{color:#7FA312;}
.stat-label{margin-top:12px;font-size:13px;color:var(--ink-300);letter-spacing:.02em;}

/* ---------- 主体：锚点 + 内容 ---------- */
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
.security-layout{
  display:grid;
  grid-template-columns:240px minmax(0,1fr);
  gap:64px;
  align-items:start;
}
.anchor-nav{position:sticky;top:112px;}
.anchor-nav h2{
  font-size:13px;
  font-weight:700;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--ink-300);
  margin-bottom:16px;
}
.anchor-link{
  display:block;
  padding:11px 0 11px 16px;
  border-left:4px solid transparent;
  font-size:15px;
  font-weight:600;
  color:var(--ink-500);
  transition:color .18s var(--ease),border-color .18s var(--ease),background .18s var(--ease);
}
.anchor-link:hover{color:var(--ink-900);background:var(--surface);}
.anchor-link.is-active{border-left-color:var(--brand);color:var(--ink-900);}
.anchor-meta{
  margin-top:28px;
  padding:18px 20px;
  border:1px dashed var(--line);
  border-radius:var(--radius-sm);
  font-size:13px;
  line-height:1.75;
  color:var(--ink-500);
}

.content-area{max-width:760px;}
.content-block{margin-bottom:80px;scroll-margin-top:120px;}
.content-block:last-of-type{margin-bottom:0;}
.content-block h2{
  font-size:clamp(24px,2.6vw,32px);
  line-height:1.25;
  font-weight:700;
  letter-spacing:-.02em;
  color:var(--ink-900);
  margin-bottom:20px;
}
.content-block h3{
  font-size:20px;
  font-weight:700;
  line-height:1.4;
  color:var(--ink-900);
  margin:36px 0 12px;
}
.content-block p{font-size:16px;line-height:1.9;color:var(--ink-700);margin-bottom:18px;}
.content-block p:last-child{margin-bottom:0;}

.callout{
  position:relative;
  padding:16px 20px;
  border-radius:var(--radius-sm);
  font-size:15px;
  line-height:1.8;
  color:var(--ink-700);
  margin:24px 0;
}
.callout strong{color:var(--ink-900);font-weight:700;}
.callout-note{background:var(--surface-2);border-left:4px solid var(--ink-900);}
.callout-tip{background:var(--brand-soft);border-left:4px solid var(--brand);}
.callout-risk{background:#fff;border:1px solid var(--ember);border-left:4px solid var(--ember);}
.callout-risk strong{color:#C2431D;}

/* 勾选清单 */
.check-list{margin:24px 0 0;border-top:1px solid var(--line);}
.check-list li{
  display:flex;
  align-items:center;
  gap:14px;
  min-height:64px;
  padding:20px 16px 20px 4px;
  border-bottom:1px solid var(--line);
  font-size:16px;
  color:var(--ink-700);
  transition:background .18s var(--ease),padding-left .18s var(--ease);
}
.check-list li:hover{background:var(--surface);padding-left:12px;}
.check-list li:last-child{border-bottom:0;}
.check-box{flex-shrink:0;width:22px;height:22px;color:var(--ink-300);transition:color .18s var(--ease);}
.check-list li:hover .check-box{color:#7FA312;}

/* 有序步骤 */
.step-list{margin:28px 0 0;counter-reset:steplist;}
.step-list li{
  position:relative;
  display:grid;
  grid-template-columns:44px minmax(0,1fr);
  gap:18px;
  padding:20px 0;
  border-bottom:1px solid var(--line);
}
.step-list li:last-child{border-bottom:0;}
.step-no{
  width:36px;height:36px;
  display:grid;place-items:center;
  border-radius:50%;
  border:1px solid var(--line);
  background:var(--surface);
  font-size:15px;
  font-weight:800;
  color:var(--ink-900);
  font-variant-numeric:tabular-nums;
}
.step-body h4{font-size:17px;font-weight:700;color:var(--ink-900);margin-bottom:4px;}
.step-body p{font-size:15px;line-height:1.8;color:var(--ink-500);margin:0;}

/* 定义卡片列表 */
.def-list{display:grid;gap:16px;margin-top:28px;}
.def-card{
  display:grid;
  grid-template-columns:minmax(0,5fr) minmax(0,7fr);
  gap:24px;
  padding:24px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.def-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);}
.def-term{font-size:17px;font-weight:700;color:var(--ink-900);line-height:1.5;}
.def-desc{font-size:15px;line-height:1.85;color:var(--ink-500);}

/* 图文块 */
.figure-block{
  margin:28px 0 0;
  border-radius:var(--radius-lg);
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--surface);
  box-shadow:var(--shadow-1);
}
.figure-block img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.figure-cap{padding:14px 20px;font-size:13px;color:var(--ink-300);line-height:1.7;}

/* ---------- FAQ ---------- */
.faq-section{background:var(--surface-2);padding:96px 0;}
.faq-grid{
  display:grid;
  grid-template-columns:minmax(0,4fr) minmax(0,8fr);
  gap:64px;
  align-items:start;
}
.faq-intro{position:sticky;top:112px;}
.faq-intro h2{
  font-size:clamp(26px,3vw,36px);
  line-height:1.22;
  font-weight:700;
  letter-spacing:-.02em;
  color:var(--ink-900);
  margin-bottom:16px;
}
.faq-intro p{font-size:15px;line-height:1.8;color:var(--ink-500);max-width:26em;}
.faq-list{max-width:860px;}
.faq-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  margin-bottom:12px;
  overflow:hidden;
  transition:box-shadow .2s var(--ease);
}
.faq-item:hover{box-shadow:var(--shadow-1);}
.faq-item.is-open{box-shadow:var(--shadow-1);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:22px 24px;
  text-align:left;
  font-size:17px;
  font-weight:700;
  line-height:1.6;
  color:var(--ink-900);
}
.faq-icon{flex-shrink:0;width:22px;height:22px;color:var(--ink-500);transition:transform .24s var(--ease),color .24s var(--ease);}
.faq-item.is-open .faq-icon{transform:rotate(45deg);color:#7FA312;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s var(--ease);}
.faq-a-inner{
  padding:0 24px 22px;
  font-size:15px;
  line-height:1.85;
  color:var(--ink-500);
}

/* ---------- CTA ---------- */
.cta-section{padding:96px 0;}
.cta-band{
  position:relative;
  background:var(--ink-900);
  border-radius:var(--radius-lg);
  padding:56px;
  color:#fff;
  overflow:hidden;
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-120px;top:-120px;
  width:360px;height:360px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(198,242,78,.22),rgba(198,242,78,0) 70%);
  pointer-events:none;
}
.cta-band .eyebrow{color:rgba(255,255,255,.5);}
.cta-band h2{
  font-size:clamp(24px,3vw,34px);
  line-height:1.24;
  font-weight:700;
  letter-spacing:-.02em;
  margin-bottom:16px;
  position:relative;
  z-index:1;
}
.cta-band p{
  font-size:16px;
  line-height:1.85;
  color:rgba(255,255,255,.72);
  max-width:36em;
  position:relative;
  z-index:1;
}
.cta-actions{display:flex;flex-wrap:wrap;gap:16px;align-items:center;margin-top:28px;position:relative;z-index:1;}
.cta-notes{
  display:flex;
  flex-wrap:wrap;
  gap:8px 32px;
  margin-top:32px;
  padding-top:24px;
  border-top:1px solid rgba(255,255,255,.08);
  position:relative;
  z-index:1;
}
.cta-notes span{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.66);}
.cta-notes svg{width:16px;height:16px;color:var(--brand);flex-shrink:0;}

.back-top-row{display:flex;justify-content:center;margin-top:40px;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--ink-900);
  color:#fff;
  border-radius:var(--radius-lg) var(--radius-lg) 0 0;
  margin-top:0;
  padding:72px 0 40px;
}
.footer-grid{
  display:grid;
  grid-template-columns:minmax(0,1.6fr) repeat(3,minmax(0,1fr));
  gap:48px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px;}
.footer-brand svg{width:26px;height:26px;color:var(--brand);flex-shrink:0;}
.footer-brand span{font-size:16px;font-weight:700;color:#fff;letter-spacing:-.01em;}
.footer-text{font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);max-width:30em;}
.footer-col h3{
  font-size:13px;
  font-weight:600;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:rgba(255,255,255,.5);
  margin-bottom:18px;
}
.footer-col ul{display:grid;gap:12px;}
.footer-link{
  font-size:14px;
  color:rgba(255,255,255,.72);
  background-image:linear-gradient(var(--brand),var(--brand));
  background-repeat:no-repeat;
  background-position:0 100%;
  background-size:0 1px;
  transition:color .18s var(--ease),background-size .22s var(--ease);
}
.footer-link:hover{color:var(--brand);background-size:100% 1px;}
.footer-bottom{
  margin-top:56px;
  padding-top:24px;
  border-top:1px solid rgba(255,255,255,.08);
  display:flex;
  flex-wrap:wrap;
  gap:12px 32px;
  justify-content:space-between;
  font-size:13px;
  color:rgba(255,255,255,.5);
  line-height:1.8;
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .head-grid{gap:40px;}
  .security-layout{grid-template-columns:200px minmax(0,1fr);gap:48px;}
  .faq-grid{gap:48px;}
}

@media (max-width:1023px){
  .container{padding:0 24px;}
  .page-head{padding:140px 0 64px;}
  .head-grid{grid-template-columns:minmax(0,1fr);gap:36px;align-items:start;}
  .section{padding:72px 0;}
  .section-tight{padding:56px 0;}
  .faq-section{padding:72px 0;}
  .cta-section{padding:72px 0;}
  .security-layout{grid-template-columns:minmax(0,1fr);gap:32px;}
  .anchor-nav{position:static;top:auto;display:flex;gap:8px;overflow-x:auto;padding-bottom:8px;}
  .anchor-nav h2{display:none;}
  .anchor-link{
    flex:0 0 auto;
    border-left:0;
    border:1px solid var(--line);
    border-radius:var(--radius-pill);
    padding:8px 16px;
    background:var(--surface);
    font-size:14px;
    white-space:nowrap;
  }
  .anchor-link.is-active{border-color:var(--brand);background:var(--brand-soft);}
  .anchor-meta{display:none;}
  .faq-grid{grid-template-columns:minmax(0,1fr);gap:32px;}
  .faq-intro{position:static;}
  .cta-band{padding:40px;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:40px;}
}

@media (max-width:767px){
  .container{padding:0 18px;}
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;}
  .brand-name{display:none;}
  .brand-name-short{display:inline;}
  .mobile-menu{display:flex;}
  .nav-pill{padding:0 10px 0 14px;height:58px;}
  .site-header{top:10px;}
  .page-head{padding:120px 0 56px;}
  .page-title{font-size:clamp(28px,8vw,38px);}
  .page-sub{font-size:16px;}
  .head-stats{grid-template-columns:minmax(0,1fr);}
  .stat-cell{border-right:0;border-bottom:1px solid var(--line);padding:18px 20px;}
  .stat-cell:last-child{border-bottom:0;}
  .stat-num{font-size:36px;}
  .section{padding:56px 0;}
  .section-tight{padding:48px 0;}
  .content-block{margin-bottom:56px;scroll-margin-top:96px;}
  .content-block p{font-size:15px;line-height:1.85;}
  .def-card{grid-template-columns:minmax(0,1fr);gap:10px;padding:20px;}
  .faq-section{padding:56px 0;}
  .faq-q{padding:18px 18px;font-size:16px;}
  .faq-a-inner{padding:0 18px 18px;}
  .cta-section{padding:56px 0;}
  .cta-band{padding:28px 22px;border-radius:var(--radius-card);}
  .cta-actions{gap:12px;}
  .cta-actions .btn{width:100%;}
  .btn{height:48px;padding:0 22px;}
  .btn-sm{height:42px;}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:32px;}
  .site-footer{padding:56px 0 32px;}
  .footer-bottom{flex-direction:column;gap:8px;margin-top:40px;}
}

@media (max-width:420px){
  .page-title{font-size:26px;}
  .stat-num{font-size:32px;}
  .step-list li{grid-template-columns:36px minmax(0,1fr);gap:14px;}
  .step-no{width:32px;height:32px;font-size:14px;}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .btn-primary:hover{transform:none;}
  .def-card:hover{transform:none;}
  .nav-link:hover{transform:none;}
}

/* roulang page: category3 */
:root{
  --ink-900:#0C0E0F;
  --ink-700:#22282A;
  --ink-500:#4C5559;
  --ink-300:#8A9296;
  --line:#E3E0D8;
  --paper:#F7F5EF;
  --surface:#FFFFFF;
  --surface-2:#EFEDE6;
  --brand:#C6F24E;
  --brand-strong:#A9D93A;
  --brand-soft:#EEF8D2;
  --ember:#FF6A3D;
  --r-card:16px;
  --r-lg:20px;
  --r-input:12px;
  --r-pill:999px;
  --shadow-1:0 1px 2px rgba(12,14,15,.04),0 8px 24px -12px rgba(12,14,15,.10);
  --shadow-2:0 18px 40px -18px rgba(12,14,15,.22);
  --ease:cubic-bezier(.22,.61,.36,1);
  --container:1200px;
  --sp-8:8px;
  --sp-16:16px;
  --sp-24:24px;
  --sp-32:32px;
  --sp-40:40px;
  --sp-56:56px;
  --sp-80:80px;
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.9;
  color:var(--ink-700);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
svg{display:block}
:focus-visible{outline:2px solid var(--ink-900);outline-offset:2px;border-radius:4px}

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

/* ============ 悬浮胶囊导航 ============ */
.site-header{
  position:fixed;
  top:16px;
  left:50%;
  transform:translateX(-50%);
  width:calc(100% - 32px);
  max-width:1160px;
  z-index:80;
}
.nav-shell{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:var(--sp-24);
  height:64px;
  padding:0 12px 0 20px;
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  background:rgba(247,245,239,.82);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow-1);
  transition:background .2s var(--ease),box-shadow .2s var(--ease);
}
.site-header.is-scrolled .nav-shell{
  background:rgba(247,245,239,.94);
  box-shadow:var(--shadow-2);
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  min-height:44px;
  font-weight:800;
  font-size:16px;
  letter-spacing:-.01em;
  color:var(--ink-900);
  white-space:nowrap;
}
.brand svg{width:26px;height:26px;color:var(--ink-900)}
.brand-name-short{display:none}
.nav-links{
  display:flex;
  align-items:center;
  gap:4px;
}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:40px;
  padding:0 16px;
  border-radius:var(--r-pill);
  font-size:14px;
  font-weight:600;
  color:var(--ink-500);
  transition:background .18s var(--ease),color .18s var(--ease),transform .18s var(--ease);
}
.nav-link:hover{background:var(--surface);color:var(--ink-900);transform:translateY(-1px)}
.nav-link.is-active{background:var(--brand-soft);color:var(--ink-900)}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:16px;
  right:16px;
  bottom:2px;
  height:2px;
  border-radius:2px;
  background:var(--brand);
}
.nav-actions{display:flex;align-items:center;gap:8px}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:52px;
  padding:0 28px;
  border:1px solid transparent;
  border-radius:var(--r-pill);
  font-size:16px;
  font-weight:700;
  line-height:1;
  white-space:nowrap;
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.btn-sm{height:44px;padding:0 22px;font-size:14px}
.btn-primary{background:var(--brand);color:var(--ink-900)}
.btn-primary:hover{background:var(--brand-strong);transform:translateY(-2px);box-shadow:var(--shadow-2)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-1)}
.btn-ghost{background:transparent;border-color:var(--ink-900);color:var(--ink-900)}
.btn-ghost:hover{background:var(--ink-900);color:var(--paper)}
.btn-ghost-light{background:transparent;border-color:rgba(255,255,255,.6);color:#fff}
.btn-ghost-light:hover{background:#fff;color:var(--ink-900);border-color:#fff}
.btn[disabled],.btn.is-disabled{background:var(--surface-2);color:var(--ink-300);box-shadow:none;pointer-events:none}

.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  min-height:44px;
  font-size:15px;
  font-weight:700;
  color:var(--ink-900);
  background-image:linear-gradient(currentColor,currentColor);
  background-repeat:no-repeat;
  background-position:0 calc(100% - 10px);
  background-size:0 1px;
  transition:background-size .22s var(--ease),color .2s var(--ease);
}
.link-arrow svg{width:16px;height:16px;transition:transform .2s var(--ease)}
.link-arrow:hover{background-size:calc(100% - 22px) 1px}
.link-arrow:hover svg{transform:translateX(4px)}
.link-arrow--light{color:#fff}
.link-arrow--back svg{transition:transform .2s var(--ease)}
.link-arrow--back:hover svg{transform:translateX(-4px)}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 10px;
  border-radius:var(--r-pill);
  font-size:12px;
  font-weight:600;
  letter-spacing:.02em;
  line-height:1.6;
}
.badge-soft{background:var(--brand-soft);color:var(--ink-900)}
.badge-brand{background:var(--brand);color:var(--ink-900)}
.badge-line{border:1px solid var(--brand-strong);color:var(--ink-900);background:transparent}
.badge-dark{background:rgba(255,255,255,.1);color:#fff}
.badge-ember{border:1px solid var(--ember);color:var(--ember);background:rgba(255,106,61,.06)}
.tag{
  display:inline-flex;
  align-items:center;
  height:32px;
  padding:0 14px;
  border-radius:var(--r-pill);
  background:var(--surface-2);
  font-size:13px;
  font-weight:600;
  color:var(--ink-700);
}

/* ============ 通用板块 ============ */
.section{padding:96px 0}
.section-tight{padding:72px 0}
.eyebrow{
  display:inline-block;
  font-size:13px;
  font-weight:600;
  letter-spacing:.12em;
  color:var(--ink-300);
  margin-bottom:12px;
}
.section-head{max-width:760px}
.section-head h2{
  font-size:clamp(26px,3.2vw,38px);
  line-height:1.2;
  font-weight:700;
  letter-spacing:-.02em;
  color:var(--ink-900);
}
.section-head .lead{
  margin-top:16px;
  font-size:15px;
  line-height:1.75;
  color:var(--ink-500);
  max-width:620px;
}
.section-head--row{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:var(--sp-32);
  max-width:none;
}
.section-body{margin-top:40px}

/* ============ 页头 ============ */
.hero{
  position:relative;
  overflow:hidden;
  background:var(--ink-900);
  color:#fff;
  padding:148px 0 72px;
  border-bottom-left-radius:var(--r-lg);
  border-bottom-right-radius:var(--r-lg);
}
.hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:url(/assets/images/backpic/back-3.webp);
  background-size:cover;
  background-position:center;
  opacity:.3;
}
.hero::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(12,14,15,.62) 0%,rgba(12,14,15,.94) 78%);
}
.hero-inner{position:relative;z-index:1}
.crumbs{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  font-size:13px;
  letter-spacing:.02em;
  color:rgba(255,255,255,.6);
}
.crumbs a{color:rgba(255,255,255,.6);transition:color .18s var(--ease)}
.crumbs a:hover{color:#fff}
.crumbs .crumb-sep{width:12px;height:12px;color:rgba(255,255,255,.4)}
.crumbs [aria-current="page"]{color:#fff}
.hero h1{
  margin-top:24px;
  font-size:clamp(34px,5vw,60px);
  line-height:1.05;
  font-weight:800;
  letter-spacing:-.03em;
  color:#fff;
}
.hero-sub{
  margin-top:20px;
  max-width:600px;
  font-size:17px;
  line-height:1.8;
  color:rgba(255,255,255,.72);
}
.hero-meta{
  margin-top:32px;
  display:flex;
  align-items:center;
  gap:24px;
  flex-wrap:wrap;
}

/* ============ 权益网格 ============ */
.benefit-grid{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:var(--sp-24);
}
.benefit-card{
  grid-column:span 4;
  display:flex;
  flex-direction:column;
  gap:16px;
  padding:32px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.benefit-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.col-5{grid-column:span 5}
.col-4{grid-column:span 4}
.col-3{grid-column:span 3}
.col-6{grid-column:span 6}
.benefit-icon{
  display:flex;
  align-items:center;
  justify-content:center;
  width:72px;
  height:72px;
  border-radius:var(--r-card);
  background:var(--brand-soft);
}
.benefit-icon svg{width:48px;height:48px;color:var(--brand-strong);stroke-width:1.5}
.benefit-card h3{
  font-size:18px;
  line-height:1.45;
  font-weight:700;
  color:var(--ink-900);
}
.benefit-card p{
  font-size:15px;
  line-height:1.75;
  color:var(--ink-500);
}

/* ============ 时间线 ============ */
.timeline{
  position:relative;
  padding-left:36px;
  max-width:860px;
}
.timeline::before{
  content:"";
  position:absolute;
  left:7px;
  top:10px;
  bottom:26px;
  width:1px;
  background:var(--line);
}
.timeline-item{
  position:relative;
  padding-bottom:40px;
}
.timeline-item:last-child{padding-bottom:0}
.timeline-item::before{
  content:"";
  position:absolute;
  left:-36px;
  top:8px;
  width:15px;
  height:15px;
  border-radius:50%;
  background:var(--surface);
  border:1px solid var(--line);
}
.timeline-item.is-current::before{
  background:var(--brand);
  border-color:var(--brand);
  box-shadow:0 0 0 4px var(--brand-soft);
}
.tl-date{
  display:block;
  font-size:13px;
  letter-spacing:.02em;
  color:var(--ink-300);
  font-variant-numeric:tabular-nums;
}
.timeline-item h3{
  margin-top:8px;
  font-size:18px;
  line-height:1.45;
  font-weight:700;
  color:var(--ink-900);
}
.timeline-item p{
  margin-top:8px;
  font-size:15px;
  line-height:1.8;
  color:var(--ink-500);
  max-width:640px;
}

/* ============ 深色卡带板块 ============ */
.dark-band{
  background:var(--ink-900);
  color:#fff;
  border-radius:var(--r-lg);
  padding:72px 0;
}
.dark-band .eyebrow{color:rgba(255,255,255,.5)}
.dark-band .section-head h2{color:#fff}
.dark-band .section-head .lead{color:rgba(255,255,255,.66)}
.scroller{
  display:flex;
  gap:var(--sp-24);
  margin-top:40px;
  padding:8px 0 16px;
  overflow-x:auto;
  scroll-snap-type:x mandatory;
  -ms-overflow-style:none;
  scrollbar-width:none;
}
.scroller::-webkit-scrollbar{display:none}
.scroller-card{
  flex:0 0 calc((100% - 72px) / 3.5);
  scroll-snap-align:start;
  display:flex;
  flex-direction:column;
  overflow:hidden;
  border:1px solid rgba(255,255,255,.08);
  border-radius:var(--r-card);
  background:rgba(255,255,255,.05);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.scroller-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.scroller-card .cover{
  position:relative;
  aspect-ratio:16/9;
  overflow:hidden;
  background:var(--ink-700);
}
.scroller-card .cover img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .24s var(--ease);
}
.scroller-card:hover .cover img{transform:scale(1.03)}
.scroller-card .card-body{
  padding:20px;
  display:flex;
  flex-direction:column;
  gap:12px;
}
.scroller-card h3{
  font-size:18px;
  line-height:1.45;
  font-weight:700;
  color:#fff;
}
.scroller-card .card-meta{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  letter-spacing:.02em;
  color:rgba(255,255,255,.55);
  font-variant-numeric:tabular-nums;
}
.scroller-card .lock{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:12px;
  font-weight:600;
  color:var(--brand);
}
.scroller-card .lock svg{width:14px;height:14px}

/* ============ FAQ ============ */
.faq-layout{
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:64px;
  align-items:start;
}
.faq-aside{position:sticky;top:104px}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  width:100%;
  min-height:64px;
  padding:20px 0;
  text-align:left;
  font-size:17px;
  font-weight:700;
  line-height:1.5;
  color:var(--ink-900);
  transition:color .18s var(--ease);
}
.faq-q:hover{color:var(--ink-500)}
.faq-icon{
  flex:0 0 auto;
  width:24px;
  height:24px;
  color:var(--ink-900);
  transition:transform .24s var(--ease);
}
.faq-item.is-open .faq-icon{transform:rotate(45deg)}
.faq-a{
  display:grid;
  grid-template-rows:0fr;
  transition:grid-template-rows .24s var(--ease);
}
.faq-item.is-open .faq-a{grid-template-rows:1fr}
.faq-a > div{overflow:hidden}
.faq-a p{
  padding:0 0 20px;
  max-width:640px;
  font-size:15px;
  line-height:1.85;
  color:var(--ink-500);
}

/* ============ CTA ============ */
.cta-band{
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:var(--sp-40);
  align-items:center;
  padding:56px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow-1);
}
.cta-band h2{
  font-size:clamp(26px,3.2vw,38px);
  line-height:1.2;
  font-weight:700;
  letter-spacing:-.02em;
  color:var(--ink-900);
}
.cta-band .lead{
  margin-top:16px;
  font-size:15px;
  line-height:1.75;
  color:var(--ink-500);
  max-width:560px;
}
.cta-actions{
  display:flex;
  align-items:center;
  gap:24px;
  flex-wrap:wrap;
  margin-top:28px;
}
.cta-side{
  border-left:1px solid var(--line);
  padding-left:var(--sp-40);
}
.assure-list{display:flex;flex-direction:column;gap:14px}
.assure-list li{
  display:flex;
  align-items:flex-start;
  gap:10px;
  font-size:14px;
  line-height:1.7;
  color:var(--ink-500);
}
.assure-list svg{flex:0 0 auto;width:18px;height:18px;margin-top:3px;color:var(--brand-strong)}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:96px;
  padding:72px 0 40px;
  background:var(--ink-900);
  color:#fff;
  border-top-left-radius:var(--r-lg);
  border-top-right-radius:var(--r-lg);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:var(--sp-40);
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:17px;
  font-weight:800;
  color:#fff;
}
.footer-brand svg{width:24px;height:24px;color:var(--brand)}
.footer-text{
  margin-top:16px;
  max-width:300px;
  font-size:14px;
  line-height:1.8;
  color:rgba(255,255,255,.6);
}
.footer-col h3{
  margin-bottom:16px;
  font-size:13px;
  font-weight:600;
  letter-spacing:.12em;
  color:rgba(255,255,255,.5);
}
.footer-col ul li{margin-bottom:10px}
.footer-link{
  display:inline-block;
  font-size:14px;
  color:rgba(255,255,255,.72);
  background-image:linear-gradient(currentColor,currentColor);
  background-repeat:no-repeat;
  background-position:0 100%;
  background-size:0 1px;
  transition:color .18s var(--ease),background-size .22s var(--ease);
}
.footer-link:hover{color:var(--brand);background-size:100% 1px}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  margin-top:48px;
  padding-top:24px;
  border-top:1px solid rgba(255,255,255,.08);
  font-size:13px;
  color:rgba(255,255,255,.5);
}

/* ============ 移动端浮层导航 ============ */
.nav-toggle{
  display:none;
  align-items:center;
  justify-content:center;
  width:44px;
  height:44px;
  border-radius:var(--r-pill);
  color:var(--ink-900);
}
.nav-toggle svg{width:22px;height:22px}
.mobile-panel{
  position:fixed;
  inset:0;
  z-index:90;
  display:none;
  flex-direction:column;
  padding:88px 24px 32px;
  background:var(--paper);
  overflow-y:auto;
}
.mobile-panel.is-open{display:flex}
.mobile-nav{display:flex;flex-direction:column}
.mobile-link{
  display:flex;
  align-items:center;
  min-height:60px;
  font-size:20px;
  font-weight:700;
  line-height:1.6;
  color:var(--ink-900);
  border-bottom:1px solid var(--line);
}
.mobile-link.is-active{color:var(--ink-900);background:var(--brand-soft);padding-left:12px;border-radius:var(--r-input)}
.mobile-cta{margin-top:auto;width:100%}

/* ============ 入场动画 ============ */
.reveal{opacity:0;transform:translateY(8px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
.reveal.is-visible{opacity:1;transform:none}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .container{padding:0 32px}
  .scroller-card{flex:0 0 calc((100% - 48px) / 3)}
}
@media (max-width:1023px){
  .container{padding:0 24px}
  .nav-links{display:none}
  .nav-toggle{display:inline-flex}
  .section{padding:72px 0}
  .section-tight{padding:56px 0}
  .benefit-grid{grid-template-columns:repeat(2,1fr);gap:20px}
  .benefit-card,.col-5,.col-4,.col-3,.col-6{grid-column:span 1}
  .faq-layout{grid-template-columns:1fr;gap:32px}
  .faq-aside{position:static}
  .cta-band{grid-template-columns:1fr;padding:40px}
  .cta-side{border-left:0;border-top:1px solid var(--line);padding-left:0;padding-top:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .scroller-card{flex:0 0 calc((100% - 24px) / 2.2)}
  .dark-band{padding:56px 0;border-radius:var(--r-lg)}
}
@media (max-width:767px){
  body{font-size:15px;line-height:1.85}
  .container{padding:0 18px}
  .site-header{top:10px;width:calc(100% - 24px)}
  .nav-shell{height:58px;padding:0 8px 0 14px}
  .brand-name{display:none}
  .brand-name-short{display:inline}
  .nav-actions .btn-sm{display:none}
  .hero{padding:112px 0 56px;border-bottom-left-radius:16px;border-bottom-right-radius:16px}
  .hero h1{margin-top:18px}
  .hero-sub{font-size:15px}
  .hero-meta{gap:16px;margin-top:24px}
  .section{padding:56px 0}
  .section-tight{padding:48px 0}
  .section-body{margin-top:28px}
  .section-head--row{flex-direction:column;align-items:flex-start;gap:16px}
  .benefit-card{padding:24px}
  .benefit-icon{width:60px;height:60px}
  .benefit-icon svg{width:40px;height:40px}
  .timeline{padding-left:30px}
  .timeline-item::before{left:-30px}
  .scroller-card{flex:0 0 calc((100% - 16px) / 1.15)}
  .scroller{gap:16px}
  .cta-band{padding:28px;border-radius:var(--r-card)}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .site-footer{padding:56px 0 32px;border-top-left-radius:16px;border-top-right-radius:16px}
  .footer-bottom{margin-top:32px;flex-direction:column;align-items:flex-start}
}
@media (max-width:420px){
  .hero h1{font-size:30px}
  .btn{height:48px;padding:0 22px;font-size:15px}
  .benefit-card{padding:20px}
  .scroller-card{flex:0 0 calc((100% - 16px) / 1.05)}
}

@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{transition-duration:.01ms !important;animation-duration:.01ms !important;animation-iteration-count:1 !important}
  .reveal{opacity:1;transform:none}
  .benefit-card:hover,.scroller-card:hover,.nav-link:hover,.btn-primary:hover{transform:none}
  .scroller-card:hover .cover img{transform:none}
  html{scroll-behavior:auto}
}