/* roulang page: index */
/* ============ 设计变量 ============ */
:root{
  --c-deep:#0F322C;
  --c-deep-2:#14453B;
  --c-primary:#F0562A;
  --c-primary-hover:#D1401B;
  --c-accent:#16C79A;
  --c-reward:#FFC53D;
  --c-bg:#F7F4EC;
  --c-surface:#FFFFFF;
  --c-surface-alt:#EFEAE0;
  --c-line:#E5DFD2;
  --c-text:#1C2926;
  --c-muted:#6C7A76;
  --c-focus:rgba(240,86,42,.35);
  --r-card:16px;
  --r-media:12px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(28,41,38,.05);
  --sh-2:0 10px 24px rgba(28,41,38,.10);
  --sh-3:0 18px 48px rgba(28,41,38,.16);
  --ease:cubic-bezier(.2,.7,.3,1);
  --fs-h1:44px;
  --fs-h2:32px;
  --fs-h3:22px;
  --fs-h4:18px;
}
/* ============ 基础 reset ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:17px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-media);background:var(--c-surface-alt);}
a{color:var(--c-text);text-decoration:none;transition:color .2s var(--ease),border-color .2s var(--ease);}
a:hover{color:var(--c-primary);}
h1,h2,h3,h4{margin:0;color:var(--c-deep);letter-spacing:-.01em;}
h1{font-size:var(--fs-h1);line-height:1.25;font-weight:800;}
h2{font-size:var(--fs-h2);line-height:1.35;font-weight:700;}
h3{font-size:var(--fs-h3);line-height:1.45;font-weight:600;}
h4{font-size:var(--fs-h4);line-height:1.5;font-weight:600;}
p{margin:0 0 1.15em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
em{font-style:normal;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
:focus-visible{outline:2px solid var(--c-focus);outline-offset:2px;border-radius:6px;}
table{border-collapse:collapse;width:100%;}
/* ============ Foundation 覆盖 ============ */
.grid-container{max-width:1200px;padding-left:24px;padding-right:24px;}
.grid-x{margin-left:0;margin-right:0;}
.grid-x > .cell{padding-left:0;padding-right:0;}
.button{background:var(--c-primary);border-radius:var(--r-pill);}
.callout{background:var(--c-surface-alt);color:var(--c-text);border-radius:var(--r-card);border:1px solid var(--c-line);}
/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;line-height:1;border:1.5px solid transparent;
  transition:transform .2s var(--ease),background .2s var(--ease),box-shadow .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{background:var(--c-primary-hover);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1);}
.btn-outline{background:transparent;border-color:var(--c-deep);color:var(--c-deep);}
.btn-outline:hover{background:var(--c-deep);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-ghost-light{background:transparent;border-color:rgba(255,255,255,.5);color:#fff;}
.btn-ghost-light:hover{background:rgba(255,255,255,.12);border-color:#fff;color:#fff;transform:translateY(-2px);}
.btn-lg{height:56px;padding:0 32px;font-size:16px;}
.btn-sm{height:44px;padding:0 20px;font-size:14px;}
.btn-text{display:inline-flex;align-items:center;gap:6px;color:var(--c-primary);font-weight:600;font-size:15px;white-space:nowrap;}
.btn-text svg{transition:transform .2s var(--ease);}
.btn-text:hover svg{transform:translateX(3px);}
/* ============ 徽章 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;
  border-radius:var(--r-pill);font-size:13px;line-height:1.4;font-weight:600;
}
.badge-cat{background:var(--c-surface-alt);color:var(--c-deep);}
.badge-live{background:rgba(240,86,42,.10);color:var(--c-primary);}
.badge-done{background:rgba(22,199,154,.14);color:#0E5C4A;}
.badge-wait{background:rgba(108,122,118,.14);color:var(--c-muted);}
.badge-reward{background:rgba(255,197,61,.24);color:#8A5B00;}
/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;background:rgba(247,244,236,.94);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .22s var(--ease),background .22s var(--ease);
}
.site-header.is-stuck{box-shadow:var(--sh-2);background:rgba(247,244,236,.99);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:72px;transition:height .22s var(--ease);}
.site-header.is-stuck .nav-inner{height:60px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;background:linear-gradient(160deg,var(--c-deep),var(--c-deep-2));color:var(--c-primary);flex:0 0 auto;}
.brand-text{display:flex;flex-direction:column;line-height:1.1;}
.brand-text strong{font-size:17px;font-weight:800;letter-spacing:.02em;color:var(--c-deep);}
.brand-text small{font-size:11px;color:var(--c-muted);letter-spacing:.16em;margin-top:2px;}
.nav-main{display:flex;align-items:center;gap:4px;}
.nav-main a{position:relative;padding:10px 14px;border-radius:var(--r-pill);font-size:15px;font-weight:600;color:var(--c-text);}
.nav-main a:hover{color:var(--c-primary);background:rgba(240,86,42,.07);}
.nav-main a.is-active{color:var(--c-primary);}
.nav-main a.is-active::after{content:"";position:absolute;left:14px;right:14px;bottom:1px;height:3px;border-radius:3px;background:var(--c-primary);}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--c-line);background:var(--c-surface);align-items:center;justify-content:center;color:var(--c-deep);}
.nav-toggle:hover{border-color:var(--c-primary);color:var(--c-primary);}
.mobile-menu{display:none;border-top:1px solid var(--c-line);background:var(--c-surface);padding:8px 0 14px;}
.mobile-menu.is-open{display:block;}
.mobile-menu a{display:block;padding:14px 4px;border-bottom:1px solid var(--c-line);font-size:16px;font-weight:600;}
.mobile-menu a:last-child{border-bottom:0;}
.mobile-menu a.is-active{color:var(--c-primary);}
/* ============ Hero ============ */
.hero{position:relative;overflow:hidden;padding:82px 0 92px;background:linear-gradient(160deg,var(--c-deep) 0%,var(--c-deep-2) 100%);color:#fff;}
.hero::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.075) 1.4px,transparent 1.4px);background-size:24px 24px;pointer-events:none;}
.hero::after{content:"";position:absolute;right:-180px;top:-140px;width:540px;height:540px;border-radius:50%;background:radial-gradient(circle,rgba(240,86,42,.30),transparent 66%);pointer-events:none;}
.hero-inner{position:relative;z-index:1;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;}
.hero-tag{display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:var(--r-pill);background:rgba(22,199,154,.16);color:#7FF0D0;font-size:13px;font-weight:600;margin-bottom:20px;}
.hero-tag::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-accent);}
.hero h1{color:#fff;}
.hero-lead{margin:20px 0 30px;color:rgba(255,255,255,.78);font-size:17px;line-height:1.85;max-width:560px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px;}
.hero-badges span{display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border-radius:var(--r-pill);background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);font-size:13px;color:rgba(255,255,255,.86);}
.hero-badges span::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-accent);}
.hero-visual{position:relative;}
.hero-visual img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-media);box-shadow:var(--sh-3);background:var(--c-deep-2);}
.hero-float{position:absolute;right:16px;bottom:16px;background:#fff;border-radius:14px;padding:14px 18px;box-shadow:var(--sh-2);min-width:200px;color:var(--c-text);}
.hero-float .k{font-size:24px;font-weight:800;color:var(--c-primary);font-variant-numeric:tabular-nums;line-height:1.3;}
.hero-float .t{font-size:13px;color:var(--c-muted);}
.hero-float .bar-mini{height:6px;border-radius:999px;background:var(--c-surface-alt);margin-top:8px;overflow:hidden;}
.hero-float .bar-mini i{display:block;height:100%;width:86%;border-radius:999px;background:var(--c-accent);}
/* ============ 数据条 ============ */
.stats-strip{margin-top:-42px;position:relative;z-index:5;background:var(--c-deep);border-radius:20px;box-shadow:var(--sh-2);overflow:hidden;color:#fff;}
.stats-strip .cell{padding:22px 24px;border-left:1px solid rgba(255,255,255,.12);}
.stats-strip .cell:first-child{border-left:0;}
.stat-k{font-size:26px;font-weight:800;color:var(--c-accent);font-variant-numeric:tabular-nums;line-height:1.3;}
.stat-t{font-size:13px;color:rgba(255,255,255,.66);letter-spacing:.02em;}
/* ============ 通用板块 ============ */
.section{padding:96px 0;}
.section-tight{padding:64px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:40px;}
.section-head .head-text{max-width:660px;}
.section-head h2{margin-bottom:12px;}
.section-head p{color:var(--c-muted);font-size:15px;line-height:1.75;margin:0;}
/* ============ 步骤条 ============ */
.steps{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.steps::before{content:"";position:absolute;top:18px;left:4%;right:4%;height:2px;background:repeating-linear-gradient(90deg,var(--c-line) 0 10px,transparent 10px 20px);}
.step{position:relative;z-index:1;}
.step-num{display:grid;place-items:center;width:38px;height:38px;border-radius:50%;background:var(--c-bg);border:2px solid var(--c-primary);color:var(--c-primary);font-weight:800;font-size:15px;margin-bottom:20px;font-variant-numeric:tabular-nums;}
.step-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:26px;box-shadow:var(--sh-1);transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);}
.step-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(240,86,42,.3);}
.step-card h3{font-size:18px;margin-bottom:10px;}
.step-card p{color:var(--c-muted);font-size:15px;line-height:1.75;}
/* ============ 最新信息 ============ */
.news-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:24px;align-items:start;}
.news-feature{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);}
.news-feature:hover{transform:translateY(-2px);border-color:rgba(240,86,42,.3);box-shadow:var(--sh-2);}
.news-feature > a{display:block;}
.news-feature img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0;}
.news-feature-body{padding:28px;}
.news-feature-body h3{font-size:22px;margin:14px 0 12px;}
.news-feature-body h3 a{color:inherit;}
.news-feature-body h3 a:hover{color:var(--c-primary);}
.news-feature-body p{color:var(--c-muted);font-size:15px;line-height:1.75;}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:18px;font-size:13px;color:var(--c-muted);font-variant-numeric:tabular-nums;}
.news-side{display:grid;gap:12px;}
.news-mini{display:grid;grid-template-columns:96px 1fr;gap:14px;align-items:center;background:var(--c-surface);border:1px solid var(--c-line);border-radius:14px;padding:12px;box-shadow:var(--sh-1);transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);}
.news-mini:hover{transform:translateY(-2px);border-color:rgba(240,86,42,.3);box-shadow:var(--sh-2);}
.news-mini img{width:96px;height:72px;object-fit:cover;border-radius:10px;}
.news-mini-title{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;font-size:15px;font-weight:600;color:var(--c-deep);line-height:1.5;}
.news-mini:hover .news-mini-title{color:var(--c-primary);}
.news-mini-meta{display:flex;align-items:center;gap:10px;margin-top:8px;font-size:12px;color:var(--c-muted);font-variant-numeric:tabular-nums;}
.news-mini-meta .badge{height:22px;padding:0 10px;font-size:12px;}
.empty-state{text-align:center;padding:64px 24px;background:var(--c-surface);border:1px dashed var(--c-line);border-radius:var(--r-card);}
.empty-state svg{color:var(--c-muted);margin:0 auto 14px;}
.empty-state p{color:var(--c-muted);font-size:15px;margin-bottom:16px;}
/* ============ 权益矩阵 ============ */
.reward-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:24px;}
.reward-card{position:relative;grid-column:span 2;display:flex;flex-direction:column;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:28px;box-shadow:var(--sh-1);transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);}
.reward-card:hover{transform:translateY(-2px);border-color:rgba(240,86,42,.3);box-shadow:var(--sh-2);}
.reward-card.span-4{grid-column:span 4;}
.reward-card .tag-top{position:absolute;top:20px;right:20px;}
.reward-icon{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;background:rgba(240,86,42,.10);color:var(--c-primary);margin-bottom:18px;}
.reward-card h3{margin-bottom:10px;}
.reward-card > p{color:var(--c-muted);font-size:15px;line-height:1.75;}
.reward-foot{margin-top:auto;padding-top:18px;border-top:1px solid var(--c-line);display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:14px;color:var(--c-muted);}
.reward-value{color:var(--c-primary);font-weight:800;font-size:20px;font-variant-numeric:tabular-nums;}
/* ============ 进度 ============ */
.progress-list{display:grid;gap:16px;}
.progress-row{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:22px 26px;box-shadow:var(--sh-1);transition:box-shadow .22s var(--ease),border-color .22s var(--ease);}
.progress-row:hover{box-shadow:var(--sh-2);border-color:rgba(240,86,42,.22);}
.progress-top{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:6px;}
.progress-top h4{margin:0;}
.progress-note{font-size:14px;color:var(--c-muted);margin:0 0 14px;}
.progress-bar-row{display:flex;align-items:center;gap:16px;}
.bar{flex:1;height:10px;border-radius:999px;background:var(--c-surface-alt);overflow:hidden;}
.bar i{display:block;height:100%;border-radius:999px;background:var(--c-accent);transition:width .9s var(--ease);}
.bar i.is-current{background:linear-gradient(90deg,var(--c-primary),#FF8452);}
.bar i.is-wait{background:rgba(108,122,118,.4);}
.progress-pct{font-variant-numeric:tabular-nums;font-weight:800;color:var(--c-primary);font-size:17px;min-width:56px;text-align:right;}
/* ============ CTA 大条 ============ */
.cta-band{position:relative;overflow:hidden;display:flex;align-items:center;justify-content:space-between;gap:40px;background:linear-gradient(160deg,var(--c-deep) 0%,var(--c-deep-2) 100%);border-radius:24px;padding:56px;color:#fff;}
.cta-band::after{content:"";position:absolute;right:-90px;bottom:-140px;width:380px;height:380px;border-radius:50%;background:radial-gradient(circle,rgba(240,86,42,.34),transparent 68%);}
.cta-copy{position:relative;z-index:1;max-width:620px;}
.cta-copy h3{color:#fff;font-size:28px;line-height:1.4;margin-bottom:12px;}
.cta-copy p{color:rgba(255,255,255,.78);font-size:15px;margin:0;}
.cta-actions{position:relative;z-index:1;display:flex;gap:14px;flex:0 0 auto;}
/* ============ FAQ ============ */
.faq-wrap{max-width:880px;margin:0 auto;}
.accordion{background:transparent;border:0;margin:0;}
.accordion-item{border:1px solid var(--c-line)!important;border-radius:14px!important;background:var(--c-surface);margin-bottom:12px;overflow:hidden;box-shadow:var(--sh-1);transition:border-color .2s var(--ease),box-shadow .2s var(--ease);}
.accordion-item:hover{border-color:rgba(240,86,42,.28)!important;box-shadow:var(--sh-2);}
.accordion-title{display:flex;align-items:center;justify-content:space-between;height:56px;padding:0 24px;border:0;background:transparent;font-size:16px;font-weight:600;color:var(--c-deep);line-height:1.4;}
.accordion-title:hover{background:rgba(240,86,42,.05);color:var(--c-primary);}
.accordion-title::before{display:none!important;}
.accordion-title::after{content:"+";font-size:22px;font-weight:400;color:var(--c-primary);line-height:1;transform:none!important;position:static!important;margin-left:16px;}
.accordion-item.is-active .accordion-title::after{content:"−";}
.accordion-item.is-active .accordion-title{color:var(--c-primary);}
.accordion-content{display:none;padding:0 24px 22px;background:var(--c-surface-alt);border:0!important;font-size:15px;line-height:1.8;color:var(--c-text);}
.accordion-item.is-active .accordion-content{display:block;}
/* ============ 页脚 ============ */
.site-footer{background:var(--c-deep);color:rgba(255,255,255,.72);padding:72px 0 0;margin-top:96px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px;}
.footer-grid h4{color:#fff;font-size:15px;letter-spacing:.06em;margin-bottom:16px;font-weight:600;}
.footer-brand .brand-text strong{color:#fff;}
.footer-brand .brand-text small{color:rgba(255,255,255,.5);}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.66);max-width:340px;margin-top:18px;}
.footer-links{display:flex;flex-direction:column;}
.footer-links a{color:rgba(255,255,255,.72);font-size:14px;padding:6px 0;border-bottom:1px solid transparent;display:inline-block;}
.footer-links a:hover{color:var(--c-accent);border-bottom-color:var(--c-accent);}
.footer-contact li{font-size:14px;padding:6px 0;color:rgba(255,255,255,.72);}
.footer-contact a{color:var(--c-accent);}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:22px 0;display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.55);}
/* ============ 移动端底部 Tab ============ */
.mobile-tab{display:none;position:fixed;left:0;right:0;bottom:0;z-index:90;background:rgba(255,255,255,.97);border-top:1px solid var(--c-line);box-shadow:0 -6px 20px rgba(28,41,38,.08);padding-bottom:env(safe-area-inset-bottom);}
.mobile-tab ul{display:grid;grid-template-columns:repeat(4,1fr);height:60px;}
.mobile-tab a{position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;font-size:11px;color:var(--c-muted);}
.mobile-tab a.is-active{color:var(--c-primary);}
.mobile-tab a.is-active::before{content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);width:28px;height:2px;border-radius:2px;background:var(--c-primary);}
.mobile-tab svg{width:20px;height:20px;}
/* ============ 入场动效 ============ */
[data-reveal]{opacity:0;transform:translateY(16px);transition:opacity .46s var(--ease),transform .46s var(--ease);}
[data-reveal].is-visible{opacity:1;transform:none;}
/* ============ 响应式 ============ */
@media screen and (max-width:1199px){
  .hero-inner{gap:40px;}
  .cta-band{padding:48px;}
}
@media screen and (max-width:899px){
  :root{--fs-h1:30px;--fs-h2:24px;--fs-h3:20px;--fs-h4:17px;}
  body{padding-bottom:72px;font-size:16px;}
  .section{padding:72px 0;}
  .section-tight{padding:52px 0;}
  .nav-inner{height:64px;}
  .nav-main,.nav-actions .btn{display:none;}
  .nav-toggle{display:inline-flex;}
  .mobile-tab{display:block;}
  .hero{padding:56px 0 76px;}
  .hero-inner{grid-template-columns:1fr;gap:34px;}
  .hero-lead{font-size:16px;}
  .stats-strip{margin-top:-28px;}
  .stats-strip .cell{padding:18px 22px;border-left:0;border-top:1px solid rgba(255,255,255,.12);}
  .stats-strip .cell:first-child{border-top:0;}
  .steps{grid-template-columns:1fr;gap:20px;}
  .steps::before{top:0;bottom:0;left:18px;right:auto;width:2px;height:auto;background:repeating-linear-gradient(180deg,var(--c-line) 0 10px,transparent 10px 20px);}
  .step{display:grid;grid-template-columns:38px 1fr;gap:16px;align-items:start;}
  .step-num{margin-bottom:0;}
  .step-card{padding:20px;}
  .news-grid{grid-template-columns:1fr;}
  .reward-grid{grid-template-columns:repeat(2,1fr);}
  .reward-card,.reward-card.span-4{grid-column:span 1;}
  .reward-card.span-4{grid-column:span 2;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:40px 28px;border-radius:20px;}
  .cta-copy h3{font-size:23px;}
  .cta-actions{flex-wrap:wrap;width:100%;}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:32px;padding-bottom:36px;}
  .site-footer{padding-top:56px;margin-top:72px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;}
}
@media screen and (max-width:639px){
  :root{--fs-h1:26px;--fs-h2:22px;}
  .grid-container{padding-left:16px;padding-right:16px;}
  .section{padding:56px 0;}
  .hero{padding:44px 0 64px;}
  .hero-actions .btn{width:100%;}
  .cta-actions .btn{width:100%;}
  .reward-grid{grid-template-columns:1fr;}
  .reward-card.span-4{grid-column:span 1;}
  .footer-grid{grid-template-columns:1fr;}
  .news-feature-body{padding:20px;}
  .news-feature-body h3{font-size:19px;}
  .progress-row{padding:18px;}
  .progress-bar-row{flex-direction:column;align-items:stretch;gap:8px;}
  .progress-pct{text-align:left;min-width:0;}
  .accordion-title{padding:0 18px;font-size:15px;}
  .accordion-content{padding:0 18px 18px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;}
  [data-reveal]{opacity:1!important;transform:none!important;}
}

/* roulang page: article */
:root{
  --c-deep:#0F322C;
  --c-deep-2:#14453B;
  --c-primary:#F0562A;
  --c-primary-hover:#D1401B;
  --c-accent:#16C79A;
  --c-reward:#FFC53D;
  --c-bg:#F7F4EC;
  --c-surface:#FFFFFF;
  --c-surface-alt:#EFEAE0;
  --c-line:#E5DFD2;
  --c-text:#1C2926;
  --c-muted:#6C7A76;
  --c-focus:rgba(240,86,42,.35);
  --r-card:16px;
  --r-media:12px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(28,41,38,.05);
  --sh-2:0 10px 24px rgba(28,41,38,.10);
  --sh-3:0 18px 48px rgba(28,41,38,.16);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:17px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--c-primary);text-decoration:none}
a:hover{color:var(--c-primary-hover)}
h1,h2,h3,h4,h5{color:var(--c-deep);font-weight:700;margin:0}
p{margin:0}
ul,ol{margin:0}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--c-focus);outline-offset:2px}
.grid-container{max-width:1200px;padding-left:24px;padding-right:24px}
.off-canvas-content{box-shadow:none;background:var(--c-bg)}
.num{font-variant-numeric:tabular-nums}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .22s var(--ease), background .22s var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--sh-2)}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:20px;height:72px;transition:height .22s var(--ease);
}
.site-header.is-scrolled .header-inner{height:60px}
.brand{display:flex;align-items:center;gap:10px;color:var(--c-deep)}
.brand:hover{color:var(--c-deep)}
.brand-mark{
  width:38px;height:38px;border-radius:11px;
  background:linear-gradient(160deg,var(--c-deep),var(--c-deep-2));
  color:var(--c-accent);display:flex;align-items:center;justify-content:center;
  flex:0 0 auto;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:17px;font-weight:800;letter-spacing:-.01em;color:var(--c-deep)}
.brand-text small{font-size:11px;color:var(--c-muted);letter-spacing:.14em}
.nav-main{display:flex;align-items:center;gap:8px}
.nav-main a{
  position:relative;display:inline-block;
  padding:8px 14px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;color:var(--c-text);
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-main a::after{
  content:"";position:absolute;left:50%;transform:translateX(-50%);
  bottom:0;width:0;height:3px;border-radius:3px;background:var(--c-primary);
  transition:width .22s var(--ease);
}
.nav-main a:hover{color:var(--c-primary);background:rgba(240,86,42,.07)}
.nav-main a:hover::after{width:22px}
.nav-main a.is-active{color:var(--c-primary)}
.nav-main a.is-active::after{width:22px}
.header-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--c-line);background:var(--c-surface);color:var(--c-deep);
  align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle:hover{border-color:var(--c-primary);color:var(--c-primary)}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:none;border-radius:var(--r-pill);cursor:pointer;
  font-size:16px;font-weight:600;line-height:1;
  padding:0 28px;height:48px;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease);
}
.btn-sm{height:44px;font-size:15px;padding:0 22px}
.btn-lg{height:56px;font-size:17px;padding:0 34px}
.btn-block{width:100%}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--c-primary-hover);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1)}
.btn-ghost{background:transparent;color:var(--c-deep);border:1.5px solid var(--c-deep)}
.btn-ghost:hover{background:var(--c-deep);color:#fff;transform:translateY(-2px)}
.btn-ghost-light{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.62)}
.btn-ghost-light:hover{background:#fff;color:var(--c-deep);transform:translateY(-2px)}
.btn-text{background:none;border:none;color:var(--c-primary);padding:0;height:auto;font-weight:600}
.btn-text span{transition:transform .2s var(--ease);display:inline-block}
.btn-text:hover span{transform:translateX(3px)}
.btn[disabled]{opacity:.45;filter:saturate(.4);cursor:not-allowed;transform:none}

/* 移动菜单 */
.off-canvas.position-right{background:linear-gradient(160deg,var(--c-deep),var(--c-deep-2));color:#fff}
.oc-head{display:flex;align-items:center;justify-content:space-between;padding:18px 20px;border-bottom:1px solid rgba(255,255,255,.14)}
.oc-brand{display:flex;align-items:center;gap:10px;color:#fff}
.oc-brand strong{font-size:16px;font-weight:800}
.oc-brand small{display:block;font-size:11px;letter-spacing:.14em;color:rgba(255,255,255,.62)}
.oc-close{background:none;border:none;color:#fff;font-size:26px;line-height:1;cursor:pointer;padding:4px 8px}
.oc-nav{display:flex;flex-direction:column;padding:14px 12px;gap:4px}
.oc-nav a{
  color:rgba(255,255,255,.88);font-size:16px;font-weight:600;
  padding:14px 16px;border-radius:12px;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.oc-nav a:hover{background:rgba(255,255,255,.10);color:#fff}
.oc-foot{padding:18px 20px 28px}

/* ---------- 文章头部信息带 ---------- */
.article-hero{
  position:relative;overflow:hidden;
  background:linear-gradient(160deg,#0F322C 0%,#14453B 100%);
  color:#fff;padding:64px 0 56px;
}
.article-hero::before{
  content:"";position:absolute;inset:0;opacity:.07;pointer-events:none;
  background-image:linear-gradient(115deg,rgba(255,255,255,.9) 1px,transparent 1px),
                   linear-gradient(245deg,rgba(255,255,255,.9) 1px,transparent 1px);
  background-size:26px 26px;
}
.article-hero>.grid-container{position:relative;z-index:2}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.68);margin-bottom:20px}
.crumbs a{color:rgba(255,255,255,.82)}
.crumbs a:hover{color:var(--c-accent);text-decoration:underline;text-underline-offset:3px}
.crumbs .sep{opacity:.5}
.article-hero h1{
  color:#fff;font-size:44px;line-height:1.25;font-weight:800;letter-spacing:-.01em;
  max-width:900px;margin-bottom:20px;
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 14px;
  font-size:14px;color:rgba(255,255,255,.72);
}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.42)}
.chip{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:var(--r-pill);font-size:13px;font-weight:600;line-height:1;
}
.chip-cat{background:rgba(240,86,42,.16);color:#FFB59F;border:1px solid rgba(240,86,42,.42)}
.chip-done{background:rgba(22,199,154,.16);color:#8FEBD3}
.chip-soft{background:var(--c-surface-alt);color:var(--c-deep)}

/* ---------- 布局 ---------- */
.main-wrap{padding:56px 0 96px}
.article-card{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);
  padding:40px;
}
.article-body{max-width:none;font-size:17px;line-height:1.85;color:var(--c-text)}
.article-body>*:first-child{margin-top:0}
.article-body p{margin:0 0 1.15em}
.article-body>p:first-of-type{font-size:18px;color:#233330}
.article-body h2{
  position:relative;font-size:28px;line-height:1.4;font-weight:700;
  margin:1.8em 0 .8em;padding-left:16px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:4px;
  border-radius:2px;background:var(--c-primary);
}
.article-body h3{font-size:21px;line-height:1.45;font-weight:700;margin:1.6em 0 .6em}
.article-body h4{font-size:18px;font-weight:600;margin:1.4em 0 .5em}
.article-body ul,.article-body ol{padding-left:1.35em;margin:0 0 1.2em}
.article-body li{margin:.42em 0}
.article-body ul li::marker{color:var(--c-primary)}
.article-body ol li::marker{color:var(--c-primary);font-weight:700}
.article-body a{color:var(--c-primary);border-bottom:1px solid rgba(240,86,42,.36)}
.article-body a:hover{color:var(--c-primary-hover);border-bottom-color:var(--c-primary-hover)}
.article-body strong{font-weight:700;color:#152521}
.article-body blockquote{
  margin:1.4em 0;padding:16px 22px;
  border-left:3px solid var(--c-accent);border-radius:0 12px 12px 0;
  background:#F1F8F5;color:#2A3B37;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-media);margin:1.5em auto;height:auto}
.article-body figure{margin:1.5em 0}
.article-body figcaption{text-align:center;font-size:13px;color:var(--c-muted);margin-top:10px}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;margin:1.4em 0}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--c-line);text-align:left;vertical-align:top}
.article-body th{background:var(--c-surface-alt);color:var(--c-deep);font-weight:700;white-space:nowrap}
.article-body tr:hover td{background:#FAF7F0}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;margin:1.4em 0}
.table-scroll table{margin:0;min-width:520px}
.article-body pre{
  background:var(--c-deep);color:#E8F4F0;border-radius:var(--r-media);
  padding:18px 20px;overflow-x:auto;font-size:14px;line-height:1.7;margin:1.4em 0;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,"Courier New",monospace;
}
.article-body code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,"Courier New",monospace;
  background:rgba(15,50,44,.07);color:#0F322C;border-radius:6px;
  padding:2px 6px;font-size:14px;
}
.article-body pre code{background:none;color:inherit;padding:0}
.article-body hr{border:none;border-top:1px solid var(--c-line);margin:2em 0}

/* 空态 */
.empty-state{
  text-align:center;padding:64px 24px;
  background:var(--c-surface);border:1px dashed var(--c-line);border-radius:var(--r-card);
}
.empty-state .empty-icon{
  width:64px;height:64px;margin:0 auto 18px;border-radius:20px;
  background:var(--c-surface-alt);color:var(--c-muted);
  display:flex;align-items:center;justify-content:center;
}
.empty-state h3{font-size:20px;margin-bottom:8px}
.empty-state p{color:var(--c-muted);font-size:15px;margin-bottom:20px}

/* ---------- 侧栏 ---------- */
.article-side{padding-top:0}
.side-inner{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px}
.side-card{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:22px;box-shadow:var(--sh-1);
}
.side-card h3{
  font-size:15px;font-weight:700;letter-spacing:.02em;color:var(--c-deep);
  padding-bottom:12px;margin-bottom:12px;border-bottom:1px solid var(--c-line);
  display:flex;align-items:center;gap:8px;
}
.side-card h3 .bar{width:4px;height:14px;border-radius:2px;background:var(--c-primary);display:inline-block}
.toc-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:2px}
.toc-list a{
  display:block;font-size:14px;line-height:1.6;color:var(--c-muted);
  padding:7px 10px;border-left:2px solid var(--c-line);border-radius:0 8px 8px 0;
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.toc-list a:hover{color:var(--c-primary);border-left-color:var(--c-primary);background:#FBF7F1}
.toc-list a.is-current{color:var(--c-primary);border-left-color:var(--c-primary);background:rgba(240,86,42,.07);font-weight:600}
.toc-list li.lv3 a{padding-left:20px;font-size:13.5px}
.side-rel{display:flex;flex-direction:column}
.side-rel a{
  display:block;padding:12px 0;border-bottom:1px dashed var(--c-line);
  color:var(--c-text);font-size:15px;font-weight:600;line-height:1.55;
}
.side-rel a:last-child{border-bottom:none;padding-bottom:0}
.side-rel a:hover{color:var(--c-primary)}
.side-rel .rel-meta{display:block;font-size:13px;color:var(--c-muted);font-weight:400;margin-top:6px}
.side-back{margin-top:2px}

/* ---------- 文末 ---------- */
.tail-block{margin-top:32px;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:32px;box-shadow:var(--sh-1)}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.tag-row .tag-label{font-size:14px;color:var(--c-muted);margin-right:4px}
.tag{
  display:inline-flex;align-items:center;height:28px;padding:0 14px;
  border-radius:var(--r-pill);background:var(--c-surface-alt);
  color:var(--c-deep);font-size:13px;font-weight:600;
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.tag:hover{background:rgba(240,86,42,.12);color:var(--c-primary);transform:translateY(-1px)}
.pn-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:26px}
.pn-card{
  display:block;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:20px 22px;color:var(--c-text);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.pn-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(240,86,42,.3);color:var(--c-text)}
.pn-card .pn-dir{font-size:13px;color:var(--c-muted);display:flex;align-items:center;gap:6px;margin-bottom:8px}
.pn-card strong{font-size:16px;font-weight:700;color:var(--c-deep);line-height:1.5;display:block}
.pn-card:hover strong{color:var(--c-primary)}
.pn-card.right{text-align:right}
.pn-card.right .pn-dir{justify-content:flex-end}

.rel-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin:56px 0 20px}
.rel-head h2{font-size:26px;font-weight:700}
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.rel-card{
  display:flex;flex-direction:column;background:var(--c-surface);
  border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--sh-1);color:var(--c-text);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.rel-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(240,86,42,.3);color:var(--c-text)}
.rel-card .rel-media{aspect-ratio:16/9;background:var(--c-surface-alt);overflow:hidden}
.rel-card .rel-media img{width:100%;height:100%;object-fit:cover}
.rel-card .rel-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.rel-card h3{font-size:17px;font-weight:700;line-height:1.5}
.rel-card:hover h3{color:var(--c-primary)}
.rel-card p{font-size:14px;line-height:1.7;color:var(--c-muted);flex:1}
.rel-card .rel-foot{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--c-muted)}

/* 常见疑问 */
.faq-section{margin-top:64px}
.faq-section>.grid-container{padding-left:0;padding-right:0}
.section-head{margin-bottom:26px}
.section-head h2{font-size:32px;line-height:1.35;font-weight:700}
.section-head p{margin-top:10px;color:var(--c-muted);font-size:15px;max-width:640px}
.accordion{border:none;background:transparent}
.accordion .accordion-item{
  border:1px solid var(--c-line);border-radius:var(--r-card);
  background:var(--c-surface);margin-bottom:12px;overflow:hidden;box-shadow:var(--sh-1);
}
.accordion .accordion-title{
  border:none;border-bottom:none;background:var(--c-surface);
  font-size:16px;font-weight:700;color:var(--c-deep);
  padding:0 56px 0 24px;min-height:56px;display:flex;align-items:center;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.accordion .accordion-title:hover{background:#FBF7F1;color:var(--c-primary)}
.accordion .accordion-title::before{
  content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);
  font-size:22px;font-weight:400;color:var(--c-primary);transition:transform .22s var(--ease);
  margin:0;
}
.accordion .accordion-item.is-active .accordion-title::before{content:"−";transform:translateY(-50%) rotate(90deg)}
.accordion .accordion-content{
  border:none;border-top:1px solid var(--c-line);background:var(--c-surface-alt);
  padding:18px 24px;font-size:15px;line-height:1.8;color:#2B3B37;
}

/* CTA 大条 */
.cta-band{
  position:relative;overflow:hidden;margin-top:72px;
  background:linear-gradient(160deg,#0F322C 0%,#14453B 100%);
  border-radius:24px;padding:48px;color:#fff;
}
.cta-band::before{
  content:"";position:absolute;inset:0;opacity:.07;
  background-image:radial-gradient(rgba(255,255,255,.9) 1px,transparent 1px);
  background-size:18px 18px;
}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:32px}
.cta-inner h3{color:#fff;font-size:28px;line-height:1.35;font-weight:700;margin-bottom:10px}
.cta-inner p{color:rgba(255,255,255,.76);font-size:15.5px;max-width:560px}
.cta-actions{display:flex;gap:14px;flex:0 0 auto}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-deep);color:rgba(255,255,255,.76);padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand .brand{color:#fff;margin-bottom:16px}
.footer-brand .brand-text strong{color:#fff}
.footer-brand .brand-text small{color:rgba(255,255,255,.55)}
.footer-brand .brand-mark{background:rgba(255,255,255,.09)}
.site-footer p{font-size:14.5px;line-height:1.8;color:rgba(255,255,255,.66);max-width:340px}
.site-footer h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{color:rgba(255,255,255,.72);font-size:14.5px;width:fit-content;transition:color .2s var(--ease)}
.footer-links a:hover{color:var(--c-accent);text-decoration:underline;text-underline-offset:3px}
.footer-contact{list-style:none;padding:0;display:flex;flex-direction:column;gap:10px;font-size:14.5px;color:rgba(255,255,255,.72)}
.footer-contact a{color:var(--c-accent)}
.footer-bottom{
  margin-top:52px;padding:20px 0;border-top:1px solid rgba(255,255,255,.13);
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13.5px;color:rgba(255,255,255,.55);
}

/* 移动端底部 Tab */
.mobile-tabbar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:70;
  height:60px;padding-bottom:env(safe-area-inset-bottom);
  background:rgba(255,255,255,.98);border-top:1px solid var(--c-line);
  box-shadow:0 -6px 20px rgba(28,41,38,.07);
}
.mobile-tabbar a{
  position:relative;flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:3px;font-size:11px;color:var(--c-muted);font-weight:600;
}
.mobile-tabbar a svg{width:21px;height:21px;stroke:currentColor;fill:none;stroke-width:1.7}
.mobile-tabbar a:hover,.mobile-tabbar a.is-active{color:var(--c-primary)}
.mobile-tabbar a.is-active::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:26px;height:2px;border-radius:2px;background:var(--c-primary);
}

/* 入场动效 */
.reveal{opacity:0;transform:translateY(14px);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}
}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1199px){
  .article-hero h1{font-size:38px}
  .rel-grid{grid-template-columns:repeat(2,1fr)}
}
@media screen and (max-width:1023px){
  .nav-main{display:none}
  .nav-toggle{display:flex}
  .header-actions .btn{display:none}
  .article-hero{padding:48px 0 44px}
  .main-wrap{padding:40px 0 72px}
  .article-card{padding:30px}
  .side-inner{position:static}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media screen and (max-width:899px){
  body{padding-bottom:72px}
  .mobile-tabbar{display:flex}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1}
}
@media screen and (max-width:767px){
  .grid-container{padding-left:16px;padding-right:16px}
  .article-hero{padding:36px 0 36px}
  .article-hero h1{font-size:28px;line-height:1.3;margin-bottom:16px}
  .article-body{font-size:16.5px}
  .article-body>p:first-of-type{font-size:17px}
  .article-body h2{font-size:23px;margin:1.6em 0 .7em}
  .article-body h3{font-size:19px}
  .article-card{padding:22px 18px}
  .tail-block{padding:22px 18px}
  .pn-grid{grid-template-columns:1fr}
  .pn-card.right{text-align:left}
  .pn-card.right .pn-dir{justify-content:flex-start}
  .rel-grid{grid-template-columns:1fr}
  .section-head h2{font-size:23px}
  .cta-band{padding:28px 20px;border-radius:18px;margin-top:48px}
  .cta-inner h3{font-size:22px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .faq-section{margin-top:48px}
  .accordion .accordion-title{padding:0 48px 0 18px;font-size:15.5px}
  .accordion .accordion-content{padding:16px 18px}
}
@media screen and (max-width:519px){
  .brand-text strong{font-size:15.5px}
  .article-hero h1{font-size:25px}
  .btn{font-size:15px;padding:0 22px}
}

/* roulang page: category1 */
/* ============ 设计变量 ============ */
:root{
  --c-deep:#0F322C;
  --c-deep-2:#14453B;
  --c-primary:#F0562A;
  --c-primary-hover:#D1401B;
  --c-accent:#16C79A;
  --c-reward:#FFC53D;
  --c-bg:#F7F4EC;
  --c-surface:#FFFFFF;
  --c-surface-alt:#EFEAE0;
  --c-line:#E5DFD2;
  --c-text:#1C2926;
  --c-muted:#6C7A76;
  --c-focus:rgba(240,86,42,.35);
  --r-card:16px;
  --r-media:12px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(28,41,38,.05);
  --sh-2:0 10px 24px rgba(28,41,38,.10);
  --sh-3:0 18px 48px rgba(28,41,38,.16);
  --ease:cubic-bezier(.2,.7,.3,1);
}

/* ============ 基础重置 ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",sans-serif;
  font-size:17px;
  line-height:1.85;
  letter-spacing:.01em;
  font-variant-numeric:tabular-nums;
  padding-bottom:72px;
}
@media (min-width:900px){body{padding-bottom:0}}
h1,h2,h3,h4,h5,h6{margin:0;color:var(--c-deep);font-weight:700;letter-spacing:-.005em;font-family:inherit}
h1{font-size:clamp(28px,4.2vw,44px);line-height:1.25;font-weight:800;letter-spacing:-.01em}
h2{font-size:clamp(23px,2.6vw,32px);line-height:1.35}
h3{font-size:22px;line-height:1.45;font-weight:600}
h4{font-size:18px;line-height:1.5;font-weight:600}
p{margin:0 0 1.15em;font-family:inherit}
p:last-child{margin-bottom:0}
a{color:inherit;text-decoration:none;font-family:inherit}
a:hover{color:var(--c-primary)}
ul,ol{margin:0;padding:0;list-style:none}
img{display:block;max-width:100%;height:auto}
button{font-family:inherit;font-size:inherit}
input,textarea{font-family:inherit}
::selection{background:rgba(240,86,42,.18)}
:focus-visible{outline:2px solid var(--c-focus);outline-offset:2px;border-radius:6px}

/* ============ Foundation 覆盖 ============ */
.grid-container{max-width:1200px;padding-left:24px;padding-right:24px;margin-left:auto;margin-right:auto}
.grid-container.fluid{padding-left:24px;padding-right:24px}
@media (max-width:640px){.grid-container{padding-left:16px;padding-right:16px}}
body,.button,.accordion-title,.accordion-content{font-family:inherit}
.button{background:var(--c-primary);border-radius:var(--r-pill)}
a.button:hover{background:var(--c-primary-hover)}
.accordion{border:none;background:transparent;margin:0}
.accordion-item{border:1px solid var(--c-line);border-radius:var(--r-card);background:var(--c-surface);margin-bottom:12px;overflow:hidden;box-shadow:var(--sh-1);transition:border-color .22s var(--ease),box-shadow .22s var(--ease)}
.accordion-item:hover{border-color:rgba(240,86,42,.3)}
.accordion-item.is-active{border-color:rgba(240,86,42,.35);box-shadow:var(--sh-2)}
.accordion .accordion-title{
  position:relative;display:flex;align-items:center;
  height:56px;padding:0 56px 0 24px;border:none;background:transparent;
  color:var(--c-text);font-size:17px;font-weight:600;line-height:1.5;
}
.accordion .accordion-title:hover,.accordion .accordion-title:focus{background:var(--c-surface-alt)}
.accordion .accordion-title::before{
  content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);
  width:auto;height:auto;margin:0;font-size:22px;line-height:1;font-weight:400;
  color:var(--c-primary);background:none;transition:transform .24s var(--ease);
}
.accordion .accordion-item.is-active .accordion-title::before{content:"−";transform:translateY(-50%) rotate(180deg)}
.accordion .accordion-content{padding:0 24px 22px;border:none;background:transparent;color:var(--c-muted);font-size:15px;line-height:1.8}
.accordion .accordion-content p{font-size:15px;line-height:1.8;color:var(--c-muted)}

/* ============ 通用容器与板块 ============ */
.section{padding:88px 0}
.section-tight{padding:64px 0}
@media (max-width:1024px){.section{padding:64px 0}.section-tight{padding:48px 0}}
@media (max-width:640px){.section{padding:52px 0}.section-tight{padding:40px 0}}
.section-head{margin-bottom:36px;max-width:760px}
.section-head .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:.12em;color:var(--c-primary);text-transform:uppercase;margin-bottom:12px}
.section-head .eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--c-primary)}
.section-head p{font-size:16px;line-height:1.8;color:var(--c-muted);margin-top:14px}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--r-pill);
  font-size:16px;font-weight:600;letter-spacing:.01em;
  border:1.5px solid transparent;cursor:pointer;white-space:nowrap;
  transition:background .22s var(--ease),color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--c-primary-hover);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1)}
.btn-outline{background:transparent;border-color:var(--c-deep);color:var(--c-deep)}
.btn-outline:hover{background:var(--c-deep);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-on-dark{background:transparent;border-color:rgba(255,255,255,.55);color:#fff}
.btn-on-dark:hover{border-color:#fff;background:rgba(255,255,255,.12);color:#fff;transform:translateY(-2px)}
.btn-lg{height:56px;padding:0 34px;font-size:17px}
.btn-block{width:100%}
.btn[disabled]{opacity:.45;filter:saturate(.5);cursor:not-allowed;transform:none}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--c-primary)}
.link-arrow svg{transition:transform .22s var(--ease)}
.link-arrow:hover svg{transform:translateX(3px)}

/* ============ 顶部导航 ============ */
.site-header{position:sticky;top:0;z-index:60;background:var(--c-bg);border-bottom:1px solid var(--c-line);transition:box-shadow .24s var(--ease)}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(28,41,38,.09)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:72px;transition:height .24s var(--ease)}
.site-header.is-scrolled .header-inner{height:60px}
.brand{display:flex;align-items:center;gap:10px;min-width:0}
.brand-mark{width:38px;height:38px;flex:0 0 auto;border-radius:12px;background:linear-gradient(160deg,var(--c-deep),var(--c-deep-2));color:#fff;display:grid;place-items:center}
.brand-text{display:flex;flex-direction:column;line-height:1.15;min-width:0}
.brand-text strong{font-size:17px;font-weight:800;color:var(--c-deep);letter-spacing:.01em}
.brand-text small{font-size:11.5px;color:var(--c-muted);letter-spacing:.14em}
.nav-main{display:flex;align-items:center;gap:4px}
.nav-main a{position:relative;padding:9px 15px;font-size:15px;font-weight:600;color:var(--c-muted);border-radius:var(--r-pill);transition:color .2s var(--ease),background .2s var(--ease)}
.nav-main a:hover{color:var(--c-deep);background:var(--c-surface-alt)}
.nav-main a.is-active{color:var(--c-primary)}
.nav-main a.is-active::after{content:"";position:absolute;left:15px;right:15px;bottom:2px;height:3px;border-radius:3px;background:var(--c-primary)}
.header-cta{height:44px;padding:0 24px;font-size:15px}
.menu-toggle{display:none;width:44px;height:44px;border:1px solid var(--c-line);border-radius:12px;background:var(--c-surface);color:var(--c-deep);align-items:center;justify-content:center;cursor:pointer}
.menu-toggle:hover{border-color:var(--c-primary);color:var(--c-primary)}
@media (max-width:899px){
  .nav-main,.header-cta{display:none}
  .menu-toggle{display:inline-flex}
  .brand-text strong{font-size:16px}
}

/* ============ 移动抽屉 ============ */
.mobile-drawer{position:fixed;inset:0;z-index:90;background:rgba(15,50,44,.5);opacity:0;visibility:hidden;transition:opacity .24s var(--ease),visibility .24s var(--ease)}
.mobile-drawer.is-open{opacity:1;visibility:visible}
.mobile-drawer-panel{position:absolute;top:0;right:0;width:min(320px,86vw);height:100%;background:var(--c-surface);padding:22px 20px 32px;transform:translateX(100%);transition:transform .28s var(--ease);overflow-y:auto}
.mobile-drawer.is-open .mobile-drawer-panel{transform:translateX(0)}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.drawer-close{width:40px;height:40px;border-radius:12px;border:1px solid var(--c-line);background:var(--c-surface);color:var(--c-deep);display:grid;place-items:center;cursor:pointer}
.drawer-close:hover{border-color:var(--c-primary);color:var(--c-primary)}
.drawer-nav{display:flex;flex-direction:column;gap:6px;margin-bottom:24px}
.drawer-nav a{padding:13px 16px;border-radius:12px;font-size:16px;font-weight:600;color:var(--c-text);background:var(--c-surface-alt)}
.drawer-nav a.is-active{background:rgba(240,86,42,.1);color:var(--c-primary)}
.drawer-note{font-size:13px;color:var(--c-muted);line-height:1.7;margin-top:18px}

/* ============ 移动底部 Tab ============ */
.mobile-tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  display:flex;background:var(--c-surface);border-top:1px solid var(--c-line);
  height:60px;padding-bottom:env(safe-area-inset-bottom);
  box-shadow:0 -4px 18px rgba(28,41,38,.06);
}
.mobile-tabbar a{flex:1 1 0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;font-size:11px;font-weight:600;color:var(--c-muted);position:relative;transition:color .2s var(--ease)}
.mobile-tabbar a svg{width:21px;height:21px}
.mobile-tabbar a.is-active{color:var(--c-primary)}
.mobile-tabbar a.is-active::before{content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);width:30px;height:2px;border-radius:0 0 3px 3px;background:var(--c-primary)}
@media (min-width:900px){.mobile-tabbar{display:none}}

/* ============ 页面头部 KV ============ */
.page-hero{
  position:relative;overflow:hidden;color:#fff;
  background:linear-gradient(160deg,var(--c-deep),var(--c-deep-2));
  padding:44px 0 60px;
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.09) 1px,transparent 1px);
  background-size:18px 18px;opacity:.6;
}
.page-hero .hero-inner{position:relative;z-index:1}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13.5px;color:rgba(255,255,255,.66);margin-bottom:22px;flex-wrap:wrap}
.breadcrumb a{color:rgba(255,255,255,.8)}
.breadcrumb a:hover{color:var(--c-accent)}
.breadcrumb .sep{opacity:.5}
.breadcrumb .current{color:var(--c-accent)}
.page-hero h1{color:#fff;max-width:900px}
.hero-sub{margin-top:18px;max-width:720px;font-size:17px;line-height:1.8;color:rgba(255,255,255,.82)}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.hero-tags li{font-size:13px;line-height:1.4;padding:7px 15px;border-radius:var(--r-pill);border:1px solid rgba(255,255,255,.26);background:rgba(255,255,255,.07);color:rgba(255,255,255,.88)}

/* ============ 目录 + 长文布局 ============ */
.layout-split{padding:72px 0 0}
.toc-card{position:sticky;top:96px;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:22px 18px;box-shadow:var(--sh-1)}
.toc-title{font-size:13px;font-weight:700;letter-spacing:.12em;color:var(--c-muted);margin-bottom:14px;text-transform:uppercase}
.toc-list{display:flex;flex-direction:column;gap:4px}
.toc-list a{display:block;padding:9px 12px;border-radius:10px;font-size:14.5px;font-weight:500;color:var(--c-muted);border-left:2px solid transparent;transition:color .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease)}
.toc-list a:hover{color:var(--c-deep);background:var(--c-surface-alt)}
.toc-list a.is-current{color:var(--c-primary);background:rgba(240,86,42,.08);border-left-color:var(--c-primary);font-weight:600}
.toc-tip{margin-top:18px;padding-top:16px;border-top:1px solid var(--c-line);font-size:13px;line-height:1.7;color:var(--c-muted)}
@media (max-width:1023px){
  .layout-split{padding:36px 0 0}
  .toc-card{position:static;padding:12px;margin-bottom:28px;display:flex;align-items:center;gap:8px;overflow-x:auto;white-space:nowrap;-webkit-overflow-scrolling:touch}
  .toc-title{display:none}
  .toc-list{flex-direction:row;gap:8px}
  .toc-list a{border-left:none;background:var(--c-surface-alt);padding:8px 16px;font-size:14px;border-radius:var(--r-pill)}
  .toc-list a.is-current{background:rgba(240,86,42,.12)}
  .toc-tip{display:none}
}

.article-body{max-width:760px;padding-bottom:24px}
.article-body h2{position:relative;margin:2.4em 0 .9em;padding-left:18px;font-size:clamp(23px,2.3vw,30px);line-height:1.4}
.article-body h2:first-child{margin-top:0}
.article-body h2::before{content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:4px;border-radius:3px;background:var(--c-primary)}
.article-body h3{margin:1.8em 0 .7em;font-size:20px}
.article-body p{font-size:17px;line-height:1.85;color:var(--c-text)}
.article-body .lead{font-size:18px;line-height:1.85;color:var(--c-deep)}
.article-body strong{color:var(--c-deep);font-weight:700}
.article-body [id]{scroll-margin-top:100px}

.figure-block{margin:34px 0;border:1px solid var(--c-line);border-radius:var(--r-media);overflow:hidden;background:var(--c-surface-alt)}
.figure-block img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0}
.figure-block figcaption{padding:12px 18px;background:var(--c-surface);font-size:13px;line-height:1.6;color:var(--c-muted);border-top:1px solid var(--c-line)}

.point-list{margin:26px 0;border:1px solid var(--c-line);border-radius:var(--r-card);background:var(--c-surface);padding:6px 0;box-shadow:var(--sh-1)}
.point-list li{display:flex;gap:14px;padding:15px 26px;border-bottom:1px solid var(--c-line);font-size:16px;line-height:1.75}
.point-list li:last-child{border-bottom:none}
.point-list li::before{content:"";flex:0 0 9px;width:9px;height:9px;margin-top:.68em;border-radius:2px;background:var(--c-primary);transform:rotate(45deg)}
.point-list li span{color:var(--c-muted);font-size:14.5px;display:block;margin-top:4px}
@media (max-width:640px){.point-list li{padding:14px 18px;font-size:15.5px}}

.pull-note{margin:28px 0;padding:20px 24px;border-left:3px solid var(--c-accent);background:var(--c-surface);border-radius:0 var(--r-media) var(--r-media) 0;box-shadow:var(--sh-1)}
.pull-note p{font-size:16px;line-height:1.8;color:var(--c-text)}

/* ============ 步骤条 ============ */
.step-track{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px;margin:32px 0 10px}
.step-item{position:relative;padding-top:58px}
.step-num{position:absolute;top:0;left:0;width:42px;height:42px;border-radius:50%;border:2px solid var(--c-primary);background:var(--c-surface);color:var(--c-primary);display:grid;place-items:center;font-size:16px;font-weight:800;z-index:1}
.step-item::after{content:"";position:absolute;top:20px;left:54px;right:-22px;height:2px;background:var(--c-line)}
.step-item:last-child::after{display:none}
.step-item h4{font-size:17px;margin-bottom:6px}
.step-item p{font-size:14.5px;line-height:1.75;color:var(--c-muted);margin:0}
@media (max-width:899px){
  .step-track{grid-template-columns:1fr;gap:26px;margin-top:24px}
  .step-item{padding:0 0 0 60px}
  .step-item::after{top:52px;left:20px;right:auto;width:2px;bottom:-26px;height:auto}
  .step-item:last-child::after{display:none}
}

/* ============ 相关分类卡片 ============ */
.cat-grid{margin-top:8px}
.cat-card{display:block;height:100%;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease)}
.cat-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(240,86,42,.35)}
.cat-card .thumb{position:relative;aspect-ratio:16/9;background:var(--c-surface-alt);overflow:hidden}
.cat-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.cat-card:hover .thumb img{transform:scale(1.04)}
.cat-card .body{padding:22px 22px 24px}
.cat-card h3{font-size:19px;margin-bottom:8px;transition:color .22s var(--ease)}
.cat-card:hover h3{color:var(--c-primary)}
.cat-card p{font-size:14.5px;line-height:1.75;color:var(--c-muted);margin:0}
.badge{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);font-size:13px;font-weight:600;line-height:1.4;background:var(--c-surface-alt);color:var(--c-deep)}
.badge-now{background:rgba(240,86,42,.1);color:var(--c-primary)}
.badge-done{background:rgba(22,199,154,.14);color:#0B6B54}
.cat-card .badge{position:absolute;top:14px;left:14px;background:rgba(255,255,255,.92)}
.cat-card .meta{margin-top:16px;font-size:13.5px;color:var(--c-muted);display:flex;align-items:center;gap:8px}

/* ============ FAQ ============ */
.faq-wrap{max-width:880px}

/* ============ CTA 大条 ============ */
.cta-band{
  position:relative;overflow:hidden;color:#fff;
  background:linear-gradient(160deg,var(--c-deep),var(--c-deep-2));
  border-radius:24px;padding:48px;
  display:flex;align-items:center;justify-content:space-between;gap:36px;
}
.cta-band::after{content:"";position:absolute;inset:0;pointer-events:none;background-image:radial-gradient(rgba(255,255,255,.08) 1px,transparent 1px);background-size:16px 16px;opacity:.55}
.cta-copy{position:relative;z-index:1;max-width:560px}
.cta-copy h3{color:#fff;font-size:clamp(21px,2.2vw,28px);margin-bottom:10px}
.cta-copy p{color:rgba(255,255,255,.8);font-size:15.5px;line-height:1.8;margin:0}
.cta-actions{position:relative;z-index:1;display:flex;gap:14px;flex-wrap:wrap}
@media (max-width:899px){
  .cta-band{flex-direction:column;align-items:flex-start;padding:34px 24px;gap:24px}
  .cta-actions{width:100%;flex-direction:column}
  .cta-actions .btn{width:100%}
}

/* ============ 页脚 ============ */
.site-footer{background:linear-gradient(160deg,var(--c-deep),var(--c-deep-2));color:rgba(247,244,236,.78);padding:64px 0 26px;margin-top:88px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:40px}
.site-footer h4{color:#fff;font-size:16px;margin-bottom:16px;letter-spacing:.02em}
.footer-brand .brand-text strong{color:#fff}
.footer-brand .brand-text small{color:rgba(247,244,236,.6)}
.footer-brand p{font-size:14px;line-height:1.8;margin-top:16px;max-width:340px;color:rgba(247,244,236,.7)}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{font-size:14.5px;color:rgba(247,244,236,.78);border-bottom:1px solid transparent;transition:color .2s var(--ease),border-color .2s var(--ease);align-self:flex-start}
.footer-links a:hover{color:var(--c-accent);border-bottom-color:var(--c-accent)}
.footer-contact li{font-size:14px;line-height:1.95;color:rgba(247,244,236,.75)}
.footer-contact a{color:var(--c-accent)}
.footer-contact a:hover{text-decoration:underline}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding-top:20px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:13px;color:rgba(247,244,236,.58)}
@media (max-width:1024px){.footer-grid{grid-template-columns:1fr 1fr;gap:32px}}
@media (max-width:640px){.footer-grid{grid-template-columns:1fr;gap:28px}.site-footer{padding:48px 0 24px;margin-top:56px}.footer-bottom{flex-direction:column;gap:8px}}

/* ============ 渐入动效 ============ */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
.reveal.is-visible{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* roulang page: category2 */
/* ========== 设计变量 ========== */
:root{
  --c-deep:#0F322C;
  --c-deep-2:#14453B;
  --c-primary:#F0562A;
  --c-primary-hover:#D1401B;
  --c-accent:#16C79A;
  --c-reward:#FFC53D;
  --c-bg:#F7F4EC;
  --c-surface:#FFFFFF;
  --c-surface-alt:#EFEAE0;
  --c-line:#E5DFD2;
  --c-text:#1C2926;
  --c-muted:#6C7A76;
  --c-focus:rgba(240,86,42,.35);
  --r-card:16px;
  --r-media:12px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(28,41,38,.05);
  --sh-2:0 10px 24px rgba(28,41,38,.10);
  --sh-3:0 18px 48px rgba(28,41,38,.16);
  --ease:cubic-bezier(.2,.7,.3,1);
  --container:1200px;
}

/* ========== 基础重置 ========== */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
  font-size:17px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--c-primary);text-decoration:none;transition:color .2s var(--ease)}
a:hover,a:focus{color:var(--c-primary-hover)}
h1,h2,h3,h4{margin:0;color:var(--c-deep);font-weight:700}
h1{font-size:44px;line-height:1.25;font-weight:800;letter-spacing:-.01em}
h2{font-size:32px;line-height:1.35}
h3{font-size:22px;line-height:1.45;font-weight:600}
h4{font-size:18px;line-height:1.5;font-weight:600}
p{margin:0 0 1.15em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
strong{font-weight:700}
:focus-visible{outline:2px solid var(--c-focus);outline-offset:2px;border-radius:4px}
.tnum{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

/* ========== Foundation 外观覆盖 ========== */
.grid-container{max-width:var(--container);padding-left:24px;padding-right:24px;margin-left:auto;margin-right:auto}
.grid-container.full{padding-left:0;padding-right:0}
.button,.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-family:inherit;font-size:16px;font-weight:600;line-height:1;
  padding:14px 28px;min-height:48px;border-radius:var(--r-pill);
  border:1.5px solid transparent;background:var(--c-primary);color:#fff;
  cursor:pointer;text-align:center;transition:transform .2s var(--ease),background-color .2s var(--ease),box-shadow .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
  box-shadow:var(--sh-1);margin:0;
}
.button:hover,.btn:hover{background:var(--c-primary-hover);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2)}
.button:active,.btn:active{transform:translateY(0);box-shadow:var(--sh-1)}
.btn-sm{min-height:44px;padding:12px 22px;font-size:15px}
.btn-lg{min-height:56px;padding:16px 34px;font-size:17px}
.btn-outline{background:transparent;color:var(--c-deep);border-color:var(--c-deep);box-shadow:none}
.btn-outline:hover{background:var(--c-deep);color:#fff;border-color:var(--c-deep)}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.55);box-shadow:none}
.btn-outline-light:hover{background:#fff;color:var(--c-deep);border-color:#fff}
.btn-text{background:transparent;color:var(--c-primary);padding:8px 0;min-height:auto;box-shadow:none;font-size:15px;border:0}
.btn-text:hover{background:transparent;color:var(--c-primary-hover);transform:none;box-shadow:none}
.btn-text .arrow{transition:transform .2s var(--ease)}
.btn-text:hover .arrow{transform:translateX(3px)}
.btn[disabled],.btn.is-disabled{opacity:.45;filter:saturate(45%);pointer-events:none}
.callout{background:var(--c-surface-alt);border:1px solid var(--c-line);border-left:3px solid var(--c-accent);border-radius:var(--r-media);color:var(--c-text)}

/* ========== 顶部导航 ========== */
.site-header{
  position:sticky;top:0;z-index:60;background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .22s var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--sh-2)}
.site-header .grid-container{padding-left:24px;padding-right:24px}
.nav-inner{position:relative;display:flex;align-items:center;gap:20px;height:72px;transition:height .22s var(--ease)}
.site-header.is-scrolled .nav-inner{height:60px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--c-deep)}
.brand:hover{color:var(--c-deep)}
.brand-mark{
  width:38px;height:38px;border-radius:12px;flex:0 0 38px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(150deg,var(--c-deep) 0%,var(--c-deep-2) 100%);
  color:var(--c-accent);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:17px;font-weight:800;letter-spacing:.01em;color:var(--c-deep)}
.brand-text small{font-size:12px;color:var(--c-muted);letter-spacing:.14em}
.nav-main{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-main a{
  position:relative;display:inline-block;padding:10px 14px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;color:var(--c-text);transition:color .2s var(--ease),background-color .2s var(--ease);
}
.nav-main a:hover{color:var(--c-primary);background:rgba(240,86,42,.08)}
.nav-main a.is-active{color:var(--c-primary)}
.nav-main a.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:3px;border-radius:2px;background:var(--c-primary);
}
.nav-right{display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--c-line);background:#fff;border-radius:12px;
  padding:11px 10px;cursor:pointer;flex-direction:column;justify-content:space-between;
}
.nav-toggle span{display:block;height:2px;border-radius:2px;background:var(--c-deep);transition:transform .22s var(--ease),opacity .22s var(--ease)}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(9px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-9px) rotate(-45deg)}
.nav-drawer{display:none}

/* ========== 通用板块 ========== */
.section{padding:96px 0}
.section-tight{padding:72px 0}
.section-surface{background:var(--c-surface)}
.section-alt{background:var(--c-surface-alt)}
.section-dark{background:linear-gradient(160deg,var(--c-deep) 0%,var(--c-deep-2) 100%);color:#fff}
.section-dark h2,.section-dark h3{color:#fff}
.section-head{max-width:760px;margin-bottom:40px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;margin-bottom:14px;
  font-size:13px;font-weight:700;letter-spacing:.16em;color:var(--c-primary);text-transform:uppercase;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--c-primary)}
.lead{font-size:17px;line-height:1.85;color:var(--c-muted);max-width:38em}
.section-dark .lead{color:rgba(255,255,255,.78)}
.divider{height:1px;background:var(--c-line);border:0;margin:0}

/* ========== 徽章与标签 ========== */
.badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:var(--r-pill);
  font-size:13px;font-weight:600;line-height:1;letter-spacing:.02em;white-space:nowrap;
}
.badge-cat{background:var(--c-surface-alt);color:var(--c-deep)}
.badge-live{background:rgba(240,86,42,.10);color:var(--c-primary)}
.badge-done{background:rgba(22,199,154,.12);color:#0C6B55}
.badge-wait{background:rgba(108,122,118,.14);color:var(--c-muted)}
.badge-reward{background:rgba(255,197,61,.22);color:#8A5B00}
.tag-row{display:flex;flex-wrap:wrap;gap:10px}
.tag{
  display:inline-flex;align-items:center;height:28px;padding:0 14px;border-radius:var(--r-pill);
  font-size:13px;font-weight:600;background:var(--c-surface-alt);color:var(--c-deep);
}
.cat-hero .tag{background:rgba(255,255,255,.12);color:#fff;border:1px solid rgba(255,255,255,.18)}

/* ========== 页面头图（分类 Hero） ========== */
.cat-hero{
  position:relative;overflow:hidden;color:#fff;
  background:linear-gradient(160deg,var(--c-deep) 0%,var(--c-deep-2) 100%);
  padding:52px 0 64px;
}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-2.webp);
  background-size:cover;background-position:center;
  opacity:.16;
}
.cat-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.08) 1px,transparent 1px);
  background-size:18px 18px;
}
.cat-hero .grid-container{position:relative;z-index:2}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.72);margin-bottom:22px}
.breadcrumb a{color:rgba(255,255,255,.86)}
.breadcrumb a:hover{color:var(--c-accent)}
.breadcrumb .sep{color:rgba(255,255,255,.45)}
.cat-hero h1{color:#fff;margin-bottom:16px}
.cat-hero .hero-sub{font-size:17px;line-height:1.85;color:rgba(255,255,255,.8);max-width:34em;margin-bottom:24px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-side{
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);
  border-radius:var(--r-card);padding:24px;
}
.hero-side h4{color:#fff;font-size:16px;margin-bottom:16px}
.hero-side-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 0;border-bottom:1px dashed rgba(255,255,255,.16);font-size:14px}
.hero-side-row:last-of-type{border-bottom:0}
.hero-side-row span{color:rgba(255,255,255,.68)}
.hero-side-row strong{color:#fff;font-size:15px}
.hero-progress{margin-top:18px}
.hero-progress .bar{height:8px;border-radius:var(--r-pill);background:rgba(255,255,255,.16);overflow:hidden}
.hero-progress .bar i{display:block;height:100%;width:68%;border-radius:var(--r-pill);background:linear-gradient(90deg,var(--c-accent) 0%,#4BE0BC 100%)}
.hero-progress .meta{display:flex;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.7);margin-top:8px}

/* ========== 数据条 ========== */
.stats-strip{margin-top:-34px;position:relative;z-index:5}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.stat-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:20px 22px;box-shadow:var(--sh-2);
}
.stat-num{display:block;font-size:28px;font-weight:800;color:var(--c-primary);line-height:1.2;font-variant-numeric:tabular-nums}
.stat-num.is-reward{color:#B47A00}
.stat-label{display:block;font-size:14px;color:var(--c-muted);margin-top:4px}

/* ========== 活动卡片网格 ========== */
.card-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.act-card{
  display:flex;flex-direction:column;background:var(--c-surface);
  border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.act-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(240,86,42,.3)}
.act-card:hover .act-title{color:var(--c-primary)}
.act-media{position:relative;background:var(--c-surface-alt);overflow:hidden}
.act-media img{width:100%;aspect-ratio:16/9;object-fit:cover}
.act-media .badge{position:absolute;top:14px;left:14px}
.act-body{display:flex;flex-direction:column;gap:12px;padding:24px;flex:1}
.act-title{font-size:20px;font-weight:700;line-height:1.45;color:var(--c-deep);transition:color .2s var(--ease)}
.act-desc{
  font-size:15px;line-height:1.75;color:var(--c-muted);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.act-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding-top:14px;border-top:1px solid var(--c-line);font-size:14px;color:var(--c-muted);
}
.act-foot .time{font-variant-numeric:tabular-nums}
.act-link{font-size:14px;font-weight:600;color:var(--c-primary);display:inline-flex;align-items:center;gap:6px}
.act-link .arrow{transition:transform .2s var(--ease)}
.act-card:hover .act-link .arrow{transform:translateX(3px)}
.act-card.is-wide{grid-column:1 / -1;flex-direction:row;align-items:stretch}
.act-card.is-wide .act-media{flex:0 0 44%;max-width:44%}
.act-card.is-wide .act-media img{aspect-ratio:4/3;height:100%}
.act-card.is-wide .act-body{padding:32px}
.act-card.is-wide .act-title{font-size:24px}
.act-card.is-wide .act-desc{-webkit-line-clamp:3;font-size:16px}

/* ========== 时间线 ========== */
.timeline{position:relative;max-width:860px;padding-left:38px}
.timeline::before{
  content:"";position:absolute;left:9px;top:8px;bottom:8px;width:2px;border-radius:2px;
  background:linear-gradient(180deg,var(--c-accent) 0%,rgba(22,199,154,.18) 100%);
}
.tl-item{position:relative;padding-bottom:34px}
.tl-item:last-child{padding-bottom:0}
.tl-dot{
  position:absolute;left:-38px;top:6px;width:20px;height:20px;border-radius:50%;
  background:var(--c-surface);border:2px solid var(--c-line);
  display:flex;align-items:center;justify-content:center;
}
.tl-item.is-done .tl-dot{border-color:var(--c-accent)}
.tl-item.is-done .tl-dot::after{content:"";width:8px;height:8px;border-radius:50%;background:var(--c-accent)}
.tl-item.is-live .tl-dot{border-color:var(--c-primary)}
.tl-item.is-live .tl-dot::after{content:"";width:8px;height:8px;border-radius:50%;background:var(--c-primary)}
.tl-phase{display:inline-block;font-size:13px;font-weight:700;letter-spacing:.06em;color:var(--c-muted);margin-bottom:6px}
.tl-item.is-live .tl-phase{color:var(--c-primary)}
.tl-body{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:22px 24px;box-shadow:var(--sh-1);
}
.tl-body h3{font-size:19px;margin-bottom:8px}
.tl-body p{font-size:15px;color:var(--c-muted);line-height:1.75;margin-bottom:12px}
.tl-meta{display:flex;flex-wrap:wrap;gap:10px;align-items:center;font-size:13px;color:var(--c-muted)}

/* ========== 参与准备清单 ========== */
.check-list{margin-top:24px}
.check-list li{
  display:flex;gap:14px;align-items:flex-start;padding:16px 0;border-bottom:1px solid var(--c-line);
}
.check-list li:last-child{border-bottom:0}
.check-icon{
  flex:0 0 26px;width:26px;height:26px;border-radius:50%;
  background:rgba(22,199,154,.14);color:#0C6B55;font-size:14px;font-weight:700;
  display:inline-flex;align-items:center;justify-content:center;margin-top:4px;
}
.check-list strong{display:block;font-size:16px;color:var(--c-deep);margin-bottom:2px}
.check-list span.txt{font-size:15px;color:var(--c-muted);line-height:1.7}
.rounded-media{border-radius:var(--r-media);width:100%;box-shadow:var(--sh-2);object-fit:cover}
.note-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:22px 24px;box-shadow:var(--sh-1);margin-top:24px;
}
.note-card h4{margin-bottom:8px}
.note-card p{font-size:15px;color:var(--c-muted);line-height:1.75}

/* ========== FAQ ========== */
.accordion{background:transparent;border:0;margin:0;max-width:860px}
.accordion .accordion-item{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);margin-bottom:14px;
}
.accordion .accordion-title{
  display:block;position:relative;padding:17px 58px 17px 22px;min-height:56px;
  font-size:16px;font-weight:600;color:var(--c-deep);background:var(--c-surface);border:0;
  transition:background-color .2s var(--ease),color .2s var(--ease);
}
.accordion .accordion-title:hover,
.accordion .accordion-title:focus{background:var(--c-surface-alt);color:var(--c-primary)}
.accordion .accordion-title::before{
  position:absolute;right:22px;top:50%;transform:translateY(-50%);
  content:"+";font-size:22px;font-weight:400;line-height:1;color:var(--c-primary);
}
.accordion .accordion-item.is-active .accordion-title::before{content:"−"}
.accordion .accordion-item.is-active .accordion-title{color:var(--c-primary)}
.accordion .accordion-content{
  border:0;background:var(--c-surface-alt);padding:18px 22px;
  font-size:15px;line-height:1.8;color:var(--c-text);
}
.accordion .accordion-content p{margin-bottom:.8em}
.accordion .accordion-content p:last-child{margin-bottom:0}

/* ========== CTA 大条 ========== */
.cta-band{
  background:linear-gradient(140deg,var(--c-primary) 0%,#D1401B 100%);
  color:#fff;padding:56px 0;
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-inner h3{color:#fff;font-size:26px;margin-bottom:8px}
.cta-inner p{color:rgba(255,255,255,.86);font-size:16px;margin:0}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}
.cta-band .btn-primary{background:#fff;color:var(--c-primary-hover)}
.cta-band .btn-primary:hover{background:#fff;color:var(--c-deep)}

/* ========== 页脚 ========== */
.site-footer{background:var(--c-deep);color:rgba(255,255,255,.72);padding:64px 0 24px;font-size:15px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.12)}
.site-footer h4{color:#fff;font-size:16px;margin-bottom:16px}
.site-footer .brand{color:#fff;margin-bottom:16px}
.site-footer .brand:hover{color:#fff}
.site-footer .brand-text strong{color:#fff}
.site-footer .brand-text small{color:rgba(255,255,255,.6)}
.footer-brand p{font-size:14.5px;line-height:1.8;color:rgba(255,255,255,.7);max-width:30em}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{color:rgba(255,255,255,.74);font-size:14.5px}
.footer-links a:hover{color:var(--c-accent);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.footer-contact li{font-size:14.5px;line-height:1.9;color:rgba(255,255,255,.7)}
.footer-contact a{color:var(--c-accent)}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding-top:22px;font-size:13.5px;color:rgba(255,255,255,.55);
}

/* ========== 移动端底部 Tab ========== */
.tabbar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:70;
  background:rgba(255,255,255,.98);border-top:1px solid var(--c-line);
  padding-bottom:env(safe-area-inset-bottom);
  box-shadow:0 -6px 20px rgba(28,41,38,.08);
}
.tab-item{
  flex:1;height:60px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;
  position:relative;font-size:12px;font-weight:600;color:var(--c-muted);
}
.tab-item svg{width:22px;height:22px;display:block}
.tab-item:hover{color:var(--c-primary)}
.tab-item.is-active{color:var(--c-primary)}
.tab-item.is-active::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:26px;height:2px;border-radius:2px;background:var(--c-primary);
}

/* ========== 滚动入场 ========== */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .26s var(--ease),transform .26s var(--ease)}
.reveal.is-in{opacity:1;transform:none}

/* ========== 响应式 ========== */
@media (max-width:1200px){
  .stat-grid{grid-template-columns:repeat(4,1fr);gap:16px}
}
@media (max-width:1024px){
  h1{font-size:36px}
  h2{font-size:28px}
  .section{padding:72px 0}
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:899px){
  .nav-main{display:none}
  .nav-right .btn{display:none}
  .nav-toggle{display:flex}
  .nav-drawer{
    display:none;position:absolute;top:calc(100% + 1px);left:-24px;right:-24px;
    background:#fff;border-bottom:1px solid var(--c-line);box-shadow:var(--sh-2);
    padding:10px 24px 20px;flex-direction:column;gap:4px;
  }
  .nav-drawer.is-open{display:flex}
  .nav-drawer a{
    padding:13px 4px;font-size:16px;font-weight:600;color:var(--c-text);
    border-bottom:1px solid var(--c-line);
  }
  .nav-drawer a.is-active{color:var(--c-primary)}
  .nav-drawer .btn{margin-top:14px;border-bottom:0;color:#fff;justify-content:center}
  .nav-drawer .btn:hover{color:#fff}
  .tabbar{display:flex}
  body{padding-bottom:calc(72px + env(safe-area-inset-bottom))}
  .cat-hero{padding:40px 0 48px}
  .hero-side{margin-top:28px}
  .card-grid{grid-template-columns:1fr}
  .act-card.is-wide{flex-direction:column}
  .act-card.is-wide .act-media{flex:0 0 auto;max-width:100%}
  .act-card.is-wide .act-media img{aspect-ratio:16/9;height:auto}
  .act-card.is-wide .act-body{padding:24px}
  .act-card.is-wide .act-title{font-size:21px}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 100%}
}
@media (max-width:640px){
  body{font-size:16px}
  h1{font-size:28px;line-height:1.3}
  h2{font-size:23px}
  h3{font-size:19px}
  .grid-container{padding-left:16px;padding-right:16px}
  .site-header .grid-container{padding-left:16px;padding-right:16px}
  .nav-drawer{left:-16px;right:-16px;padding-left:16px;padding-right:16px}
  .section{padding:56px 0}
  .section-tight{padding:48px 0}
  .stats-strip{margin-top:-24px}
  .stat-grid{grid-template-columns:1fr 1fr;gap:12px}
  .stat-card{padding:16px}
  .stat-num{font-size:22px}
  .act-body{padding:20px}
  .timeline{padding-left:30px}
  .tl-dot{left:-30px;width:18px;height:18px}
  .tl-body{padding:18px}
  .cta-inner h3{font-size:21px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* roulang page: category3 */
/* ============ 设计变量 ============ */
:root{
  --c-deep:#0F322C;
  --c-deep-2:#14453B;
  --c-primary:#F0562A;
  --c-primary-hover:#D1401B;
  --c-accent:#16C79A;
  --c-reward:#FFC53D;
  --c-bg:#F7F4EC;
  --c-surface:#FFFFFF;
  --c-surface-alt:#EFEAE0;
  --c-line:#E5DFD2;
  --c-text:#1C2926;
  --c-muted:#6C7A76;
  --c-focus:rgba(240,86,42,.35);

  --r-card:16px;
  --r-media:12px;
  --r-input:12px;
  --r-pill:999px;

  --sh-1:0 1px 2px rgba(28,41,38,.05);
  --sh-2:0 10px 24px rgba(28,41,38,.10);
  --sh-3:0 18px 48px rgba(28,41,38,.16);

  --ease:cubic-bezier(.2,.7,.3,1);
  --nav-h:72px;
  --nav-h-scrolled:60px;
}

/* ============ 基础重置 ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:17px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--c-primary-hover);}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,summary:focus-visible{
  outline:2px solid var(--c-focus);
  outline-offset:2px;
  border-radius:6px;
}
h1,h2,h3,h4,h5,h6{
  font-family:inherit;
  color:var(--c-deep);
  margin:0 0 .6em;
  line-height:1.35;
  font-weight:700;
  letter-spacing:-.01em;
}
h1{font-size:44px;line-height:1.25;font-weight:800;letter-spacing:-.01em;}
h2{font-size:32px;line-height:1.35;font-weight:700;}
h3{font-size:22px;line-height:1.45;font-weight:600;}
h4{font-size:18px;line-height:1.5;font-weight:600;}
p{margin:0 0 1.15em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0 0 1.15em;padding-left:1.2em;}
li{margin-bottom:.4em;}
button{font-family:inherit;}
::selection{background:rgba(240,86,42,.2);}

/* ============ 覆盖 Foundation 默认皮肤 ============ */
.grid-container{max-width:1200px;padding-left:24px;padding-right:24px;}
.grid-container.full{padding-left:0;padding-right:0;}
.button,.button.primary,.button.secondary{
  background:transparent;color:inherit;border:none;padding:0;margin:0;font-family:inherit;
}
.callout{background:transparent;border:none;padding:0;margin:0;color:inherit;}
.accordion{border:none;background:transparent;margin-left:0;margin-right:0;}
.accordion-item{border:none;background:transparent;}
.accordion-title{border:none;}
.accordion-content{border:none;}
table{border-collapse:collapse;background:transparent;}
.top-bar,.top-bar-left,.top-bar-right{background:transparent;}

/* ============ 通用排版容器 ============ */
.section{padding:96px 0;}
.section--tight{padding:72px 0;}
.section--alt{background:var(--c-surface);}
.section--deep{
  background:linear-gradient(160deg,var(--c-deep) 0%,var(--c-deep-2) 100%);
  color:#EAF3EF;
}
.section--deep h2,.section--deep h3,.section--deep h4{color:#FFFFFF;}
.section--deep .lead{color:rgba(234,243,239,.78);}

.section-head{max-width:760px;margin-bottom:48px;}
.section-head--center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;line-height:1.4;font-weight:600;letter-spacing:.06em;
  color:var(--c-primary);text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--c-primary);display:block;}
.lead{font-size:17px;line-height:1.85;color:var(--c-muted);max-width:38ch;}
.section--wide .lead,.section-head--wide .lead{max-width:56ch;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:14px 28px;
  border-radius:var(--r-pill);
  font-size:16px;font-weight:600;line-height:1;
  border:1.5px solid transparent;
  cursor:pointer;
  transition:transform .22s var(--ease),background-color .22s var(--ease),box-shadow .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--c-primary);color:#FFFFFF;box-shadow:var(--sh-1);}
.btn-primary:hover{background:var(--c-primary-hover);color:#FFFFFF;transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1);}
.btn-ghost{background:transparent;color:var(--c-deep);border-color:var(--c-deep);}
.btn-ghost:hover{background:var(--c-deep);color:#FFFFFF;transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-ghost--light{color:#FFFFFF;border-color:rgba(255,255,255,.5);}
.btn-ghost--light:hover{background:#FFFFFF;color:var(--c-deep);border-color:#FFFFFF;}
.btn-sm{min-height:44px;padding:12px 22px;font-size:15px;}
.btn-lg{min-height:56px;padding:17px 34px;font-size:17px;}
.btn[disabled],.btn.is-disabled{opacity:.45;filter:saturate(.45);pointer-events:none;}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--c-primary);font-weight:600;font-size:15px;
}
.btn-text svg{transition:transform .22s var(--ease);}
.btn-text:hover svg{transform:translateX(3px);}

.btn-row{display:flex;flex-wrap:wrap;gap:14px;align-items:center;}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;
  height:26px;padding:0 12px;border-radius:var(--r-pill);
  font-size:13px;line-height:1.4;font-weight:600;white-space:nowrap;
}
.badge--cat{background:var(--c-surface-alt);color:var(--c-deep);}
.badge--doing{background:rgba(240,86,42,.1);color:var(--c-primary);}
.badge--done{background:rgba(22,199,154,.12);color:#0E5B47;}
.badge--reward{background:rgba(255,197,61,.22);color:#7A5600;}
.badge--line{border:1px solid var(--c-line);background:transparent;color:var(--c-muted);}

.tag-list{display:flex;flex-wrap:wrap;gap:10px;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,244,236,.94);
  backdrop-filter:saturate(140%) blur(6px);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .26s var(--ease),background-color .26s var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--sh-2);background:rgba(247,244,236,.98);}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:20px;height:var(--nav-h);
  transition:height .26s var(--ease);
}
.site-header.is-scrolled .header-inner{height:var(--nav-h-scrolled);}

.brand{display:inline-flex;align-items:center;gap:10px;color:var(--c-deep);flex:none;}
.brand:hover{color:var(--c-deep);}
.brand-mark{
  width:38px;height:38px;border-radius:11px;flex:none;
  background:linear-gradient(160deg,var(--c-deep),var(--c-deep-2));
  color:var(--c-primary);
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:var(--sh-1);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-size:17px;font-weight:800;letter-spacing:.01em;color:var(--c-deep);}
.brand-text small{font-size:11px;letter-spacing:.14em;color:var(--c-muted);}

.nav-main{display:flex;align-items:center;gap:6px;}
.nav-main a{
  position:relative;
  padding:10px 14px;
  font-size:15.5px;font-weight:500;color:var(--c-text);
  border-radius:8px;
  transition:color .2s var(--ease),background-color .2s var(--ease);
}
.nav-main a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;
  height:3px;border-radius:2px;background:var(--c-primary);
  transform:scaleX(0);transform-origin:left center;
  transition:transform .24s var(--ease);
}
.nav-main a:hover{color:var(--c-primary);background:rgba(240,86,42,.06);}
.nav-main a.is-active{color:var(--c-primary);font-weight:600;}
.nav-main a.is-active::after{transform:scaleX(1);}

.header-cta{display:flex;align-items:center;gap:12px;flex:none;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--c-line);background:var(--c-surface);
  align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--c-deep);position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-deep);
  transition:transform .24s var(--ease),top .24s var(--ease);
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-toggle.is-open span{background:transparent;}
.nav-toggle.is-open span::before{top:0;transform:rotate(45deg);}
.nav-toggle.is-open span::after{top:0;transform:rotate(-45deg);}

.mobile-drawer{
  display:none;
  border-top:1px solid var(--c-line);
  background:var(--c-surface);
  padding:16px 24px 24px;
}
.mobile-drawer.is-open{display:block;}
.mobile-drawer a{
  display:block;padding:14px 4px;font-size:16px;font-weight:500;color:var(--c-text);
  border-bottom:1px solid var(--c-line);
}
.mobile-drawer a.is-active{color:var(--c-primary);font-weight:600;}
.mobile-drawer .btn{margin-top:18px;width:100%;}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;
  background:linear-gradient(160deg,var(--c-deep) 0%,var(--c-deep-2) 100%);
  color:#EAF3EF;
  padding:84px 0 88px;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(115deg,rgba(255,255,255,.055) 1px,transparent 1px),
    linear-gradient(25deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:38px 38px,52px 52px;
  pointer-events:none;
}
.hero .grid-container{position:relative;z-index:1;}
.hero h1{color:#FFFFFF;margin-bottom:20px;}
.hero .lead{color:rgba(234,243,239,.82);font-size:17.5px;max-width:34ch;}
.hero-side{position:relative;}
.hero-figure{
  border-radius:var(--r-media);overflow:hidden;
  border:1px solid rgba(255,255,255,.14);
  box-shadow:var(--sh-3);
  background:var(--c-deep-2);
}
.hero-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.hero-float{
  position:absolute;left:-16px;bottom:-22px;
  background:var(--c-surface);color:var(--c-text);
  border-radius:14px;padding:16px 20px;box-shadow:var(--sh-3);
  min-width:210px;
}
.hero-float .kpi{font-size:26px;font-weight:800;color:var(--c-primary);line-height:1.2;}
.hero-float .kpi-label{font-size:13px;color:var(--c-muted);}

/* 面包屑 */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13.5px;color:rgba(234,243,239,.66);margin-bottom:22px;
}
.breadcrumb a{color:rgba(234,243,239,.86);}
.breadcrumb a:hover{color:var(--c-accent);text-decoration:underline;text-underline-offset:3px;}
.breadcrumb span.sep{opacity:.5;}

.hero-badges{
  display:flex;flex-wrap:wrap;gap:10px;margin-top:28px;
}
.hero-badges span{
  display:inline-flex;align-items:center;gap:7px;
  height:30px;padding:0 14px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.16);
  font-size:13px;color:rgba(234,243,239,.92);
}
.hero-badges span::before{
  content:"";width:6px;height:6px;border-radius:50%;background:var(--c-accent);
}

/* ============ 数据条 ============ */
.stat-strip{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:8px 0;
}
.stat-cell{
  padding:26px 24px;
  border-right:1px solid var(--c-line);
}
.stat-cell:last-child{border-right:none;}
.stat-cell .num{font-size:28px;font-weight:800;color:var(--c-primary);line-height:1.2;}
.stat-cell .num small{font-size:14px;font-weight:600;color:var(--c-muted);margin-left:4px;}
.stat-cell .cap{font-size:14px;color:var(--c-muted);margin-top:6px;}

/* ============ 对比区 ============ */
.compare{
  border-radius:var(--r-card);
  overflow:hidden;
  border:1px solid var(--c-line);
  background:var(--c-surface);
  box-shadow:var(--sh-1);
}
.compare-head{display:grid;grid-template-columns:1fr 1fr;}
.compare-head .compare-cell{
  padding:20px 26px;
  font-weight:700;font-size:16px;
}
.compare-head .head-risk{background:var(--c-surface-alt);color:var(--c-deep);}
.compare-head .head-safe{background:var(--c-deep);color:#FFFFFF;}
.compare-row{
  display:grid;grid-template-columns:1fr 1fr;
  border-top:1px solid var(--c-line);
  transition:background-color .2s var(--ease);
}
.compare-row:hover{background:var(--c-surface-alt);}
.compare-cell{
  padding:22px 26px;
  font-size:15.5px;line-height:1.8;
}
.compare-cell + .compare-cell{border-left:1px solid var(--c-line);}
.compare-cell .cell-title{
  display:block;font-weight:600;color:var(--c-deep);margin-bottom:4px;
}
.compare-cell.is-safe .cell-title{color:#0E5B47;}
.compare-cell .cell-desc{color:var(--c-muted);font-size:14.5px;}
.compare-cell .data-label{display:none;}

/* ============ 卡片 ============ */
.card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:28px;
  box-shadow:var(--sh-1);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
  height:100%;
}
.card:hover{
  transform:translateY(-2px);
  box-shadow:var(--sh-2);
  border-color:rgba(240,86,42,.3);
}
.card:hover .card-title{color:var(--c-primary);}
.card-title{font-size:18px;font-weight:600;color:var(--c-deep);margin-bottom:10px;transition:color .24s var(--ease);}
.card-text{font-size:15px;line-height:1.8;color:var(--c-muted);margin:0;}
.card-media{
  border-radius:var(--r-media);overflow:hidden;margin-bottom:20px;
  background:var(--c-surface-alt);
}
.card-media img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.card-icon{
  width:46px;height:46px;border-radius:13px;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(240,86,42,.1);color:var(--c-primary);
  margin-bottom:16px;
}
.card-divider{height:1px;background:var(--c-line);margin:18px 0;}
.card-meta{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13.5px;color:var(--c-muted);
}
.card-figure-num{
  font-size:22px;font-weight:800;color:var(--c-primary);
}
.card--accent{border-top:3px solid var(--c-accent);}
.card--reward{border-top:3px solid var(--c-reward);}

/* ============ 清单 ============ */
.check-list{list-style:none;padding:0;margin:0;}
.check-list li{
  display:flex;gap:14px;align-items:flex-start;
  padding:18px 0;
  border-bottom:1px solid var(--c-line);
  font-size:15.5px;line-height:1.8;
  margin:0;
  transition:background-color .2s var(--ease);
}
.check-list li:last-child{border-bottom:none;}
.check-list li:hover{background:var(--c-surface-alt);}
.check-list .tick{
  flex:none;width:24px;height:24px;border-radius:50%;
  background:rgba(22,199,154,.14);color:#0E5B47;
  display:inline-flex;align-items:center;justify-content:center;
  margin-top:3px;
}
.check-list .item-body strong{display:block;color:var(--c-deep);font-weight:600;margin-bottom:2px;}
.check-list .item-body span{color:var(--c-muted);font-size:14.5px;}

/* ============ 步骤条 ============ */
.steps{
  display:grid;grid-template-columns:repeat(4,1fr);
  gap:0;position:relative;margin-top:12px;
}
.steps::before{
  content:"";position:absolute;top:19px;left:8%;right:8%;height:2px;
  background:linear-gradient(90deg,rgba(240,86,42,.5),rgba(22,199,154,.5));
  z-index:0;
}
.step{position:relative;z-index:1;padding:0 14px;text-align:center;}
.step-num{
  width:40px;height:40px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--c-surface);
  border:2px solid var(--c-primary);
  color:var(--c-primary);font-weight:800;font-size:16px;
  margin-bottom:16px;
  transition:background-color .24s var(--ease),color .24s var(--ease),transform .24s var(--ease);
}
.step:hover .step-num{background:var(--c-accent);border-color:var(--c-accent);color:#FFFFFF;transform:translateY(-2px);}
.step h4{font-size:16.5px;margin-bottom:6px;}
.step p{font-size:14.5px;color:var(--c-muted);line-height:1.75;margin:0;}

/* ============ 图文横幅 ============ */
.banner-figure{
  border-radius:var(--r-media);overflow:hidden;
  border:1px solid var(--c-line);box-shadow:var(--sh-1);
  background:var(--c-surface-alt);
}
.banner-figure img{width:100%;aspect-ratio:21/9;object-fit:cover;}

/* ============ 列表项 ============ */
.link-list{list-style:none;padding:0;margin:0;}
.link-list li{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:16px 4px;border-bottom:1px solid var(--c-line);
  transition:background-color .2s var(--ease);
}
.link-list li:hover{background:var(--c-surface-alt);}
.link-list li:last-child{border-bottom:none;}
.link-list a{font-size:15.5px;font-weight:500;color:var(--c-text);}
.link-list a:hover{color:var(--c-primary);}
.link-list .time{font-size:13.5px;color:var(--c-muted);flex:none;text-align:right;}

/* ============ FAQ 手风琴 ============ */
.faq-accordion{margin:0;}
.faq-accordion .accordion-item{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.faq-accordion .accordion-item:hover{border-color:rgba(240,86,42,.32);box-shadow:var(--sh-1);}
.faq-accordion .accordion-item.is-active{border-color:rgba(240,86,42,.4);box-shadow:var(--sh-2);}
.faq-accordion .accordion-title{
  position:relative;
  display:block;
  padding:0 64px 0 24px;
  min-height:56px;
  line-height:56px;
  font-size:16px;font-weight:600;color:var(--c-deep);
  background:transparent;
  border:none;
}
.faq-accordion .accordion-title:hover{background:transparent;color:var(--c-primary);}
.faq-accordion .accordion-title::before,
.faq-accordion .accordion-title::after{
  content:"";position:absolute;right:28px;top:50%;
  background:var(--c-primary);border-radius:2px;
  transition:transform .24s var(--ease),opacity .24s var(--ease);
}
.faq-accordion .accordion-title::before{width:14px;height:2px;transform:translateY(-50%);}
.faq-accordion .accordion-title::after{width:2px;height:14px;transform:translateY(-50%);}
.faq-accordion .accordion-item.is-active .accordion-title::after{transform:translateY(-50%) rotate(90deg);opacity:0;}
.faq-accordion .accordion-content{
  background:var(--c-surface-alt);
  padding:20px 24px;
  font-size:15px;line-height:1.8;color:var(--c-text);
  border-top:1px solid var(--c-line);
}

/* ============ 大 CTA ============ */
.cta-band{
  background:linear-gradient(160deg,var(--c-deep) 0%,var(--c-deep-2) 100%);
  border-radius:24px;
  padding:56px;
  color:#EAF3EF;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(240,86,42,.28),transparent 68%);
  pointer-events:none;
}
.cta-band h3{color:#FFFFFF;font-size:28px;margin-bottom:12px;}
.cta-band p{color:rgba(234,243,239,.78);max-width:44ch;margin:0;}
.cta-band .btn-row{justify-content:flex-end;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--c-deep);
  color:rgba(234,243,239,.76);
  padding:72px 0 28px;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:40px;
  border-bottom:1px solid rgba(255,255,255,.12);
}
.site-footer .brand{color:#FFFFFF;}
.site-footer .brand-text strong{color:#FFFFFF;}
.site-footer .brand-text small{color:rgba(234,243,239,.6);}
.site-footer .brand-mark{background:rgba(255,255,255,.08);}
.footer-brand p{font-size:14.5px;line-height:1.8;color:rgba(234,243,239,.68);margin:18px 0 0;max-width:34ch;}
.site-footer h4{color:#FFFFFF;font-size:15px;letter-spacing:.02em;margin-bottom:16px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14.5px;color:rgba(234,243,239,.76);}
.footer-links a:hover{color:var(--c-accent);text-decoration:underline;text-underline-offset:3px;}
.footer-contact{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px;}
.footer-contact li{font-size:14.5px;color:rgba(234,243,239,.68);margin:0;}
.footer-contact a{color:rgba(234,243,239,.9);}
.footer-contact a:hover{color:var(--c-accent);text-decoration:underline;text-underline-offset:3px;}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  padding-top:24px;
  font-size:13.5px;color:rgba(234,243,239,.58);
}

/* ============ 移动端底部 Tab ============ */
.tab-bar{
  display:none;
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  height:calc(60px + env(safe-area-inset-bottom));
  padding-bottom:env(safe-area-inset-bottom);
  background:rgba(255,255,255,.97);
  border-top:1px solid var(--c-line);
  box-shadow:0 -4px 18px rgba(28,41,38,.08);
}
.tab-bar a{
  position:relative;
  flex:1;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  font-size:11.5px;color:var(--c-muted);font-weight:500;
}
.tab-bar a svg{width:22px;height:22px;display:block;}
.tab-bar a::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%) scaleX(0);
  width:34px;height:2px;border-radius:2px;background:var(--c-primary);
  transition:transform .22s var(--ease);
}
.tab-bar a.is-active{color:var(--c-primary);font-weight:600;}
.tab-bar a.is-active::before{transform:translateX(-50%) scaleX(1);}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .5s var(--ease),transform .5s var(--ease);}
.reveal.is-visible{opacity:1;transform:none;}

/* ============ 响应式 ============ */
@media screen and (max-width:1200px){
  .grid-container{padding-left:20px;padding-right:20px;}
  h1{font-size:38px;}
  h2{font-size:29px;}
  .cta-band{padding:44px;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:28px;}
}

@media screen and (max-width:1023px){
  .section{padding:72px 0;}
  .section--tight{padding:56px 0;}
  h1{font-size:32px;}
  h2{font-size:25px;}
  h3{font-size:20px;}
  body{font-size:16.5px;}
  .lead{max-width:100%;}
  .stat-cell{border-right:none;border-bottom:1px solid var(--c-line);}
  .stat-cell:last-child{border-bottom:none;}
  .steps{grid-template-columns:repeat(2,1fr);row-gap:32px;}
  .steps::before{display:none;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}

@media screen and (max-width:899px){
  .nav-main{display:none;}
  .header-cta .btn-primary{display:none;}
  .nav-toggle{display:inline-flex;}
  .tab-bar{display:flex;}
  body{padding-bottom:72px;}
  .section--deep .cta-band{border-radius:18px;}
}

@media screen and (max-width:767px){
  .compare-head{display:none;}
  .compare-row{grid-template-columns:1fr;}
  .compare-cell + .compare-cell{border-left:none;border-top:1px dashed var(--c-line);}
  .compare-cell .data-label{
    display:inline-block;font-size:12.5px;font-weight:600;letter-spacing:.04em;
    color:var(--c-muted);margin-bottom:6px;
  }
  .compare-cell{padding:18px 20px;}
}

@media screen and (max-width:640px){
  .grid-container{padding-left:16px;padding-right:16px;}
  .section{padding:56px 0;}
  .section--tight{padding:44px 0;}
  h1{font-size:28px;line-height:1.3;}
  h2{font-size:23px;}
  h3{font-size:19px;}
  h4{font-size:17px;}
  body{font-size:16px;}
  .hero{padding:56px 0 64px;}
  .hero-float{position:static;margin-top:16px;min-width:0;}
  .section-head{margin-bottom:32px;}
  .card{padding:20px;}
  .steps{grid-template-columns:1fr;row-gap:26px;}
  .step{text-align:left;padding-left:56px;position:relative;}
  .step-num{position:absolute;left:0;top:0;margin-bottom:0;}
  .cta-band{padding:32px 22px;}
  .cta-band .btn-row{justify-content:flex-start;margin-top:22px;}
  .cta-band .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .btn-row .btn{width:100%;}
  .btn-row .btn-text{width:auto;}
}

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