/* roulang page: index */
:root{
  --c-primary:#0B72E7;
  --c-primary-700:#0956B3;
  --c-primary-100:#E8F1FE;
  --c-accent:#FF7A2F;
  --c-accent-100:#FFF1E7;
  --c-ok:#12B981;
  --c-warn:#F5A524;
  --bg-page:#F6F9FE;
  --bg-card:#FFFFFF;
  --bg-panel:#EEF4FD;
  --bg-dark:#0F1B2D;
  --t-1:#101C33;
  --t-2:#41536F;
  --t-3:#8496B0;
  --b-1:#E4ECF7;
  --b-2:#CBD9EC;
  --sh-1:0 1px 2px rgba(16,28,51,.04),0 6px 18px rgba(16,28,51,.06);
  --sh-2:0 10px 28px rgba(11,114,231,.14);
  --r-lg:18px;
  --r-md:14px;
  --r-sm:12px;
  --r-pill:999px;
  --f: "PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --sec:88px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--f);
  font-size:16px;
  line-height:1.85;
  color:var(--t-2);
  background:var(--bg-page);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--c-primary-700);}
button,input{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
h1,h2,h3,h4,p,ul,ol,figure,dl,dd{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 32px;
}
@media (max-width:1279px){.container{padding:0 28px;}}
@media (max-width:1023px){.container{padding:0 24px;}}
@media (max-width:767px){.container{padding:0 16px;}}

/* ---------- 倒计时条 ---------- */
.cd-bar{
  position:sticky;
  top:0;
  z-index:60;
  background:var(--bg-dark);
  border-top:2px solid transparent;
  background-image:linear-gradient(90deg,var(--c-primary),#4FA3FF 60%,var(--c-accent));
  background-size:100% 2px;
  background-repeat:no-repeat;
  background-position:top left;
  background-color:var(--bg-dark);
}
.cd-inner{
  min-height:44px;
  display:flex;
  align-items:center;
  gap:20px;
  flex-wrap:wrap;
}
.cd-label{
  color:#D6E3F7;
  font-size:14px;
  display:inline-flex;
  align-items:center;
  gap:8px;
}
.cd-label::before{
  content:"";
  width:8px;height:8px;border-radius:50%;
  background:var(--c-accent);
  box-shadow:0 0 0 4px rgba(255,122,47,.18);
}
.cd-timer{display:flex;align-items:center;gap:10px;margin-left:auto;}
.cd-unit{display:flex;align-items:baseline;gap:4px;color:#fff;}
.cd-unit b{
  font-size:18px;font-weight:700;color:var(--c-accent);
  font-variant-numeric:tabular-nums;letter-spacing:.5px;
}
.cd-unit i{font-style:normal;font-size:11px;color:#93A7C4;}
.cd-sep{color:#4A5C77;font-size:12px;}
.cd-btn{
  height:32px;padding:0 16px;border-radius:var(--r-pill);
  border:1px solid rgba(255,255,255,.45);
  color:#fff;font-size:13px;line-height:30px;
  transition:background .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.cd-btn:hover{background:rgba(255,255,255,.12);border-color:#fff;color:#fff;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:44px;z-index:50;
  background:#fff;
  border-bottom:1px solid var(--b-1);
  transition:box-shadow .25s ease;
}
.site-header.is-stuck{box-shadow:var(--sh-1);}
.nav-wrap{
  height:72px;
  display:flex;align-items:center;gap:20px;
}
.brand{
  display:inline-flex;align-items:center;gap:10px;flex-shrink:0;
  color:var(--t-1);
}
.brand:hover{color:var(--t-1);}
.brand-mark{
  width:32px;height:32px;border-radius:10px;
  background:var(--c-primary);
  color:#fff;font-size:15px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 4px 12px rgba(11,114,231,.28);
}
.brand-text{display:flex;align-items:baseline;gap:6px;}
.brand-text b{font-size:19px;font-weight:700;letter-spacing:.5px;}
.brand-text i{font-style:normal;font-size:11px;color:var(--t-3);font-weight:500;letter-spacing:1px;}
.nav-panel{
  display:flex;align-items:center;gap:4px;
  background:var(--bg-panel);
  border-radius:16px;
  padding:6px;
  margin:0 auto;
  overflow-x:auto;
  scrollbar-width:none;
  max-width:100%;
}
.nav-panel::-webkit-scrollbar{display:none;}
.nav-chip{
  display:flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:10px;
  color:var(--t-2);white-space:nowrap;
  transition:background .18s ease,color .18s ease,box-shadow .18s ease;
}
.nav-chip b{font-size:14px;font-weight:500;display:block;line-height:1.4;}
.nav-chip i{font-style:normal;font-size:11px;color:var(--t-3);display:block;line-height:1.25;}
.nav-chip .chip-ico{
  width:26px;height:26px;border-radius:8px;
  background:#fff;color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:700;flex-shrink:0;
  border:1px solid var(--b-1);
}
.nav-chip:hover{background:#fff;color:var(--c-primary);box-shadow:var(--sh-1);}
.nav-chip:hover .chip-ico{background:var(--c-primary-100);border-color:var(--c-primary-100);}
.nav-chip.is-active{background:var(--c-primary);color:#fff;box-shadow:0 6px 16px rgba(11,114,231,.28);}
.nav-chip.is-active i{color:rgba(255,255,255,.78);}
.nav-chip.is-active .chip-ico{background:rgba(255,255,255,.18);color:#fff;border-color:transparent;}
.nav-right{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.nav-toggle{
  display:none;
  width:42px;height:42px;border-radius:12px;
  border:1px solid var(--b-2);background:#fff;
  align-items:center;justify-content:center;
}
.nav-toggle span{
  display:block;width:16px;height:2px;background:var(--t-1);border-radius:2px;position:relative;
}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:16px;height:2px;background:var(--t-1);border-radius:2px;
}
.nav-toggle span::before{top:-5px;}
.nav-toggle span::after{top:5px;}

/* 移动抽屉 */
.drawer{
  position:fixed;inset:0;z-index:90;
  background:rgba(15,27,45,.55);
  opacity:0;visibility:hidden;transition:opacity .24s ease,visibility .24s ease;
}
.drawer.is-open{opacity:1;visibility:visible;}
.drawer-inner{
  position:absolute;left:0;right:0;bottom:0;
  background:var(--bg-dark);
  border-radius:20px 20px 0 0;
  padding:24px 20px 32px;
  transform:translateY(24px);
  transition:transform .24s ease;
}
.drawer.is-open .drawer-inner{transform:translateY(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-head b{color:#fff;font-size:16px;}
.drawer-close{
  width:34px;height:34px;border-radius:10px;
  border:1px solid rgba(255,255,255,.28);color:#fff;font-size:16px;line-height:1;
}
.drawer-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;}
.drawer-card{
  border:1px solid rgba(255,255,255,.22);
  border-radius:12px;padding:14px 12px;
  color:#E4EDFA;
}
.drawer-card b{display:block;font-size:14px;font-weight:500;color:#fff;}
.drawer-card i{font-style:normal;font-size:11px;color:#8FA4C2;display:block;margin-top:2px;}
.drawer-card.is-active{border-color:var(--c-primary);color:var(--c-primary);}
.drawer-card.is-active b{color:#6FB0FF;}
.drawer-cta{margin-top:18px;display:block;text-align:center;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;
  border-radius:var(--r-sm);
  font-size:15px;font-weight:500;
  border:1px solid transparent;
  transition:background .2s ease,color .2s ease,box-shadow .2s ease,transform .15s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn:active{transform:translateY(0) scale(.985);}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 6px 16px rgba(11,114,231,.24);}
.btn-primary:hover{background:var(--c-primary-700);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-ghost{background:#fff;color:var(--c-primary);border-color:var(--b-2);}
.btn-ghost:hover{background:var(--c-primary-100);border-color:var(--c-primary-100);color:var(--c-primary-700);transform:translateY(-1px);}
.btn-lg{height:52px;padding:0 30px;font-size:16px;}
.btn-sm{height:42px;padding:0 20px;font-size:14px;}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--c-primary);font-size:15px;font-weight:500;
  border-bottom:1px solid rgba(11,114,231,.35);
  padding-bottom:2px;
  transition:color .2s ease,border-color .2s ease;
}
.btn-link:hover{color:var(--c-primary-700);border-color:var(--c-primary-700);}
.btn-link::after{content:"›";font-size:17px;line-height:1;}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;
  height:24px;padding:0 12px;border-radius:var(--r-pill);
  background:var(--c-primary-100);color:var(--c-primary);
  font-size:12px;font-weight:500;letter-spacing:.3px;
}
.badge-time{background:var(--bg-panel);color:var(--t-3);}
.badge-live{background:var(--c-accent-100);color:#D9601B;}
.badge-done{background:#EEF1F6;color:var(--t-3);}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;}

/* ---------- 板块基础 ---------- */
.section{padding:var(--sec) 0;}
.section-alt{background:#fff;}
.sec-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
  margin-bottom:32px;flex-wrap:wrap;
}
.sec-kicker{
  font-size:13px;font-weight:500;color:var(--c-primary);
  letter-spacing:2px;margin-bottom:8px;display:flex;align-items:center;gap:8px;
}
.sec-kicker::before{content:"";width:20px;height:2px;background:var(--c-primary);border-radius:2px;}
.sec-title{font-size:30px;line-height:1.35;font-weight:700;color:var(--t-1);}
.sec-sub{margin-top:10px;font-size:15px;color:var(--t-2);max-width:640px;}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  padding:64px 0 72px;
  overflow:hidden;
}
.hero::after{
  content:"";position:absolute;right:-160px;bottom:-200px;
  width:620px;height:620px;border-radius:50%;
  background:radial-gradient(circle,rgba(11,114,231,.06),rgba(11,114,231,0) 68%);
  pointer-events:none;
}
.hero-grid{
  position:relative;z-index:1;
  display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;
  min-height:480px;
}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  background:#fff;border:1px solid var(--b-1);border-radius:var(--r-pill);
  padding:6px 14px;font-size:13px;color:var(--t-2);box-shadow:var(--sh-1);
  margin-bottom:20px;
}
.hero-eyebrow em{
  font-style:normal;width:6px;height:6px;border-radius:50%;background:var(--c-ok);
}
.hero h1{
  font-size:46px;line-height:1.24;font-weight:700;color:var(--t-1);
  letter-spacing:-.5px;
}
.hero h1 span{color:var(--c-primary);}
.hero-lead{
  margin-top:20px;font-size:17px;line-height:1.85;color:var(--t-2);max-width:560px;
}
.hero-actions{margin-top:32px;display:flex;gap:14px;flex-wrap:wrap;}
.hero-stats{
  margin-top:44px;display:grid;grid-template-columns:repeat(4,1fr);gap:18px;
  padding-top:26px;border-top:1px solid var(--b-1);
}
.hero-stats b{
  display:block;font-size:28px;font-weight:700;color:var(--c-primary);
  font-variant-numeric:tabular-nums;line-height:1.2;
}
.hero-stats i{font-style:normal;font-size:13px;color:var(--t-3);display:block;margin-top:4px;}
.hero-visual{position:relative;}
.hero-visual img{
  width:100%;height:440px;object-fit:cover;
  border-radius:24px;box-shadow:var(--sh-2);
  background:var(--bg-panel);
}
.float-card{
  position:absolute;left:-22px;bottom:34px;
  background:#fff;border-radius:var(--r-md);border:1px solid var(--b-1);
  box-shadow:var(--sh-2);padding:16px 18px;min-width:196px;
}
.float-card strong{display:block;font-size:13px;color:var(--t-3);font-weight:500;}
.float-card b{display:block;font-size:22px;color:var(--t-1);font-weight:700;margin-top:4px;font-variant-numeric:tabular-nums;}
.float-card span{font-size:12px;color:var(--c-ok);}

/* ---------- 活动卖点 ---------- */
.feature-row{
  display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
  padding:36px 0;
  border-top:1px solid var(--b-1);
}
.feature-row:first-of-type{border-top:0;padding-top:0;}
.feature-row.rev .feature-media{order:2;}
.feature-media img{
  width:100%;height:300px;object-fit:cover;border-radius:var(--r-lg);
  box-shadow:var(--sh-1);background:var(--bg-panel);
}
.feature-num{
  font-size:64px;font-weight:700;line-height:1;
  color:transparent;-webkit-text-stroke:1.5px rgba(11,114,231,.55);
  font-variant-numeric:tabular-nums;margin-bottom:14px;letter-spacing:2px;
}
.feature-row h3{font-size:22px;font-weight:700;color:var(--t-1);line-height:1.5;}
.feature-row p{margin-top:12px;font-size:15.5px;line-height:1.85;color:var(--t-2);}
.feature-row .btn-link{margin-top:18px;}

/* ---------- 图墙 ---------- */
.wall{display:grid;gap:16px;}
.wall-top{display:grid;grid-template-columns:7fr 5fr;gap:16px;}
.wall-side{display:grid;gap:16px;}
.wall-bottom{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;}
.wall-card{
  position:relative;display:block;border-radius:16px;overflow:hidden;
  background:var(--bg-panel);box-shadow:var(--sh-1);
  transition:box-shadow .25s ease,transform .25s ease;
}
.wall-card:hover{box-shadow:var(--sh-2);transform:translateY(-3px);}
.wall-card img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.wall-card:hover img{transform:scale(1.03);}
.wall-card .w-cap{
  position:absolute;left:0;right:0;bottom:0;
  padding:26px 18px 14px;
  background:linear-gradient(to top,rgba(8,16,30,.78),rgba(8,16,30,0));
  display:flex;flex-direction:column;gap:8px;align-items:flex-start;
}
.w-cap strong{color:#fff;font-size:15px;font-weight:500;line-height:1.5;}
.wall-main .wall-card img{height:340px;}
.wall-side .wall-card img{height:162px;}
.wall-bottom .wall-card img{height:180px;}

/* ---------- 报名 CTA ---------- */
.cta-box{
  border-radius:20px;
  background:linear-gradient(180deg,rgba(11,114,231,.06),rgba(11,114,231,.03));
  border:1px solid rgba(11,114,231,.22);
  padding:44px;
  display:grid;grid-template-columns:7fr 5fr;gap:44px;
}
.cta-box h2{font-size:28px;font-weight:700;color:var(--t-1);line-height:1.4;}
.cta-box .cta-desc{margin-top:14px;font-size:15.5px;color:var(--t-2);}
.cta-points{margin-top:22px;display:grid;gap:12px;}
.cta-points li{display:flex;gap:10px;font-size:15px;color:var(--t-2);align-items:flex-start;}
.cta-points li::before{
  content:"✓";
  flex-shrink:0;width:20px;height:20px;border-radius:50%;
  background:var(--c-primary);color:#fff;
  font-size:12px;display:flex;align-items:center;justify-content:center;
  margin-top:5px;
}
.cta-note{margin-top:18px;font-size:12.5px;color:var(--t-3);line-height:1.7;}
.form-card{
  background:#fff;border-radius:var(--r-lg);border:1px solid var(--b-1);
  box-shadow:var(--sh-1);padding:26px;
}
.form-card h3{font-size:18px;font-weight:700;color:var(--t-1);margin-bottom:6px;}
.form-card .form-tip{font-size:13px;color:var(--t-3);margin-bottom:18px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:14px;color:var(--t-2);margin-bottom:7px;font-weight:500;}
.field input{
  width:100%;height:48px;padding:0 14px;
  border:1px solid var(--b-2);border-radius:var(--r-sm);
  background:#fff;color:var(--t-1);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field input::placeholder{color:#A9B7CC;}
.field input:focus{
  outline:none;border-color:var(--c-primary);
  box-shadow:0 0 0 3px var(--c-primary-100);
}
.form-card .btn{width:100%;margin-top:4px;}
.form-ok{
  display:none;margin-bottom:16px;padding:10px 14px;border-radius:10px;
  background:rgba(18,185,129,.1);color:#0B8A62;font-size:13.5px;
  border:1px solid rgba(18,185,129,.28);
}
.form-ok.is-show{display:block;}
.form-privacy{margin-top:12px;font-size:12px;color:var(--t-3);line-height:1.7;}

/* ---------- 最新信息 ---------- */
.news-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px;align-items:start;}
.news-hero{
  background:#fff;border-radius:var(--r-lg);border:1px solid var(--b-1);
  box-shadow:var(--sh-1);overflow:hidden;display:block;
  transition:box-shadow .25s ease,transform .25s ease;
}
.news-hero:hover{box-shadow:var(--sh-2);transform:translateY(-4px);}
.news-hero img{width:100%;height:260px;object-fit:cover;background:var(--bg-panel);}
.news-hero .nh-body{padding:24px 26px 26px;}
.news-hero h3{
  font-size:20px;font-weight:700;color:var(--t-1);line-height:1.5;margin-top:12px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-hero p{
  margin-top:10px;font-size:15px;color:var(--t-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.meta-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:13px;color:var(--t-3);margin-top:16px;}
.news-list{display:grid;gap:14px;}
.news-item{
  display:flex;gap:14px;align-items:center;
  background:#fff;border:1px solid var(--b-1);border-radius:var(--r-md);
  padding:14px;box-shadow:var(--sh-1);
  transition:box-shadow .25s ease,transform .25s ease,border-color .25s ease;
}
.news-item:hover{box-shadow:var(--sh-2);transform:translateY(-3px);border-color:var(--b-2);}
.news-item img{
  width:120px;height:80px;object-fit:cover;border-radius:10px;flex-shrink:0;
  background:var(--bg-panel);
}
.news-item .ni-body{min-width:0;}
.news-item h4{
  font-size:16px;font-weight:600;color:var(--t-1);line-height:1.5;margin-top:6px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-item .ni-meta{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--t-3);margin-top:8px;flex-wrap:wrap;}
.news-item .ni-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--b-2);}
.empty-state{
  background:#fff;border:1px dashed var(--b-2);border-radius:var(--r-lg);
  padding:48px 24px;text-align:center;grid-column:1 / -1;
}
.empty-state .es-ico{
  width:48px;height:48px;border-radius:14px;background:var(--bg-panel);
  color:var(--c-primary);font-size:20px;display:flex;align-items:center;justify-content:center;
  margin:0 auto 14px;
}
.empty-state p{font-size:15px;color:var(--t-2);margin-bottom:16px;}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:4fr 8fr;gap:56px;align-items:start;}
.faq-intro h2{font-size:28px;font-weight:700;color:var(--t-1);line-height:1.4;}
.faq-intro p{margin-top:14px;font-size:15px;color:var(--t-2);}
.faq-intro .btn-link{margin-top:18px;}
.faq-list{background:#fff;border:1px solid var(--b-1);border-radius:var(--r-lg);box-shadow:var(--sh-1);overflow:hidden;}
.faq-item{border-top:1px solid var(--b-1);}
.faq-item:first-child{border-top:0;}
.faq-item summary{
  list-style:none;cursor:pointer;
  padding:22px 26px 22px 26px;
  font-size:17px;font-weight:600;color:var(--t-1);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  position:relative;transition:background .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";font-size:22px;font-weight:400;color:var(--c-primary);
  line-height:1;flex-shrink:0;transition:transform .22s ease;
}
.faq-item[open] summary::after{content:"−";}
.faq-item summary:hover{background:var(--bg-panel);}
.faq-item[open] summary::before{
  content:"";position:absolute;left:0;top:18px;bottom:18px;width:3px;
  background:var(--c-primary);border-radius:0 3px 3px 0;
}
.faq-item .faq-body{
  padding:0 26px 24px 26px;
  font-size:15.5px;color:var(--t-2);line-height:1.85;
}

/* ---------- 页脚 ---------- */
.site-footer{padding:0 0 40px;}
.footer-card{
  background:var(--bg-panel);
  border:1px solid var(--b-1);
  border-radius:20px;
  padding:48px 44px 0;
  overflow:hidden;
}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;
  padding-bottom:36px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:14px;color:var(--t-2);line-height:1.85;max-width:320px;}
.footer-col h4{font-size:15px;font-weight:700;color:var(--t-1);margin-bottom:16px;}
.footer-col ul{display:grid;gap:10px;}
.footer-col li a{font-size:14px;color:var(--t-2);}
.footer-col li a:hover{color:var(--c-primary);}
.footer-col li span{font-size:14px;color:var(--t-2);}
.footer-col li .fnote{font-size:12.5px;color:var(--t-3);}
.footer-bottom{
  border-top:1px solid var(--b-2);
  padding:20px 0 24px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--t-3);
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .hero-grid{gap:36px;}
  .hero h1{font-size:42px;}
}
@media (max-width:1023px){
  :root{--sec:64px;}
  .nav-panel{display:none;}
  .nav-toggle{display:flex;}
  .nav-wrap{justify-content:space-between;}
  .nav-right .btn{display:none;}
  .hero{padding:48px 0 56px;}
  .hero-grid{grid-template-columns:1fr;gap:32px;min-height:0;}
  .hero h1{font-size:36px;}
  .hero-visual img{height:320px;}
  .float-card{left:16px;bottom:16px;}
  .hero-stats{grid-template-columns:repeat(2,1fr);}
  .feature-row{grid-template-columns:1fr;gap:26px;}
  .feature-row.rev .feature-media{order:0;}
  .feature-media img{height:240px;}
  .wall-top{grid-template-columns:1fr;}
  .wall-side{grid-template-columns:1fr 1fr;}
  .wall-side .wall-card img{height:170px;}
  .cta-box{grid-template-columns:1fr;gap:30px;padding:32px;}
  .news-grid{grid-template-columns:1fr;}
  .faq-wrap{grid-template-columns:1fr;gap:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
  .footer-card{padding:36px 28px 0;}
}
@media (max-width:767px){
  :root{--sec:48px;}
  body{font-size:15.5px;}
  .site-header{top:44px;}
  .cd-label{display:none;}
  .cd-timer{margin-left:0;gap:8px;}
  .cd-unit b{font-size:16px;}
  .cd-inner{gap:12px;justify-content:space-between;}
  .cd-btn{margin-left:auto;}
  .hero h1{font-size:30px;}
  .hero-lead{font-size:16px;}
  .sec-title{font-size:23px;}
  .feature-num{font-size:52px;}
  .wall-side{grid-template-columns:1fr;}
  .wall-bottom{grid-template-columns:1fr;}
  .wall-main{display:block;}
  .wall{display:block;}
  .wall > *{margin-bottom:16px;}
  .wall-top,.wall-side,.wall-bottom{display:block;}
  .wall-top > *,.wall-side > *,.wall-bottom > *{margin-bottom:16px;}
  .wall-card img,.wall-main .wall-card img,.wall-side .wall-card img,.wall-bottom .wall-card img{height:210px;}
  .cta-box{padding:24px 20px;}
  .form-card{padding:20px;}
  .news-item{flex-direction:column;align-items:stretch;}
  .news-item img{width:100%;height:160px;}
  .faq-item summary{padding:18px 18px;font-size:16px;}
  .faq-item .faq-body{padding:0 18px 20px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-card{padding:28px 20px 0;}
  .footer-bottom{justify-content:flex-start;}
}
@media (max-width:520px){
  .hero-stats{grid-template-columns:1fr 1fr;gap:14px;}
  .hero-stats b{font-size:24px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .sec-head{margin-bottom:24px;}
}

/* roulang page: article */
:root{
  --c-primary:#0B72E7;
  --c-primary-700:#0956B3;
  --c-primary-100:#E8F1FE;
  --c-accent:#FF7A2F;
  --c-ok:#12B981;
  --c-warn:#F5A524;
  --bg-page:#F6F9FE;
  --bg-card:#FFFFFF;
  --bg-panel:#EEF4FD;
  --t-1:#101C33;
  --t-2:#41536F;
  --t-3:#8496B0;
  --b-1:#E4ECF7;
  --b-2:#CBD9EC;
  --sh-1:0 1px 2px rgba(16,28,51,.04),0 6px 18px rgba(16,28,51,.06);
  --sh-2:0 10px 28px rgba(11,114,231,.14);
  --r-lg:18px;
  --r-md:14px;
  --r-sm:12px;
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--t-2);
  background:var(--bg-page);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--c-primary);text-decoration:none;text-underline-offset:3px;transition:color .2s ease;}
a:hover{color:var(--c-primary-700);}
h1,h2,h3,h4{margin:0;color:var(--t-1);font-weight:700;line-height:1.35;}
p{margin:0;}
ul,ol{margin:0;padding:0;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:8px;}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 32px;
}
@media (max-width:1279px){.container{padding:0 28px;}}
@media (max-width:1023px){.container{padding:0 24px;}}
@media (max-width:767px){.container{padding:0 16px;}}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:#fff;
  border-bottom:1px solid var(--b-1);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-1);}
.nav-wrap{
  display:flex;
  align-items:center;
  gap:20px;
  min-height:72px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:32px;height:32px;border-radius:10px;
  background:var(--c-primary);
  color:#fff;font-size:16px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
  line-height:1;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text b{font-size:18px;font-weight:700;color:var(--t-1);letter-spacing:.2px;}
.brand-text i{font-style:normal;font-size:11px;font-weight:500;color:var(--t-3);letter-spacing:.6px;}
.nav-panel{
  flex:1 1 auto;
  display:flex;
  align-items:center;
  gap:4px;
  background:var(--bg-panel);
  border-radius:16px;
  padding:6px;
  min-width:0;
  overflow:hidden;
}
.nav-chip{
  display:flex;align-items:center;gap:8px;
  padding:8px 12px;
  border-radius:10px;
  color:var(--t-2);
  min-width:0;
  transition:background .2s ease,box-shadow .2s ease,color .2s ease;
}
.nav-chip span{display:flex;flex-direction:column;line-height:1.25;min-width:0;}
.nav-chip b{font-size:14px;font-weight:500;color:var(--t-1);white-space:nowrap;}
.nav-chip i{font-style:normal;font-size:11px;color:var(--t-3);white-space:nowrap;}
.chip-ico{
  width:22px;height:22px;flex:0 0 22px;
  border-radius:8px;
  background:#fff;
  color:var(--c-primary);
  font-size:12px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
}
.nav-chip:hover{background:#fff;box-shadow:var(--sh-1);color:var(--c-primary);}
.nav-chip:hover b{color:var(--c-primary);}
.nav-chip.is-active{background:var(--c-primary);}
.nav-chip.is-active b,.nav-chip.is-active i{color:#fff;}
.nav-chip.is-active .chip-ico{background:rgba(255,255,255,.18);color:#fff;}
.nav-right{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.nav-toggle{
  display:none;
  width:42px;height:42px;border-radius:12px;
  border:1px solid var(--b-2);background:#fff;
  cursor:pointer;position:relative;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after{
  content:"";position:absolute;left:11px;right:11px;height:2px;border-radius:2px;background:var(--t-1);
  transition:transform .24s ease,opacity .2s ease;
}
.nav-toggle span{top:20px;}
.nav-toggle span::before{top:-6px;left:0;right:0;}
.nav-toggle span::after{top:6px;left:0;right:0;}
.nav-toggle.is-open span{transform:rotate(45deg);}
.nav-toggle.is-open span::before{transform:translateY(6px) rotate(-90deg);}
.nav-toggle.is-open span::after{opacity:0;}

/* buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;
  border-radius:var(--r-sm);
  font-size:15px;font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:background .2s ease,color .2s ease,box-shadow .2s ease,transform .16s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--c-primary);color:#fff;}
.btn-primary:hover{background:var(--c-primary-700);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0) scale(.99);}
.btn-ghost{background:#fff;color:var(--c-primary);border-color:var(--b-2);}
.btn-ghost:hover{background:var(--c-primary-100);border-color:var(--c-primary);color:var(--c-primary-700);}
.btn-link{
  display:inline-block;color:var(--c-primary);font-weight:600;
  text-decoration:underline;text-decoration-thickness:1px;
}
.btn-link:hover{color:var(--c-primary-700);}
.btn-sm{height:40px;padding:0 16px;font-size:14px;border-radius:10px;}
.btn-lg{height:52px;padding:0 28px;font-size:16px;}

/* mobile nav drawer */
.nav-drawer{
  position:fixed;inset:72px 0 0 0;z-index:55;
  background:#0F1B2D;
  padding:22px 20px 32px;
  transform:translateY(-10px);
  opacity:0;visibility:hidden;
  transition:opacity .24s ease,transform .24s ease,visibility .24s;
  overflow-y:auto;
}
.nav-drawer.is-open{opacity:1;visibility:visible;transform:translateY(0);}
.drawer-title{color:rgba(255,255,255,.55);font-size:12px;letter-spacing:1px;margin-bottom:14px;}
.drawer-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;}
.drawer-item{
  border:1px solid rgba(255,255,255,.18);
  border-radius:14px;
  padding:14px;
  color:#fff;background:rgba(255,255,255,.03);
  display:block;
}
.drawer-item b{display:block;font-size:15px;color:#fff;margin-bottom:4px;}
.drawer-item i{font-style:normal;font-size:12px;color:rgba(255,255,255,.6);}
.drawer-item.is-active{border-color:var(--c-primary);color:var(--c-primary);}
.drawer-item.is-active b{color:#7FB4F5;}

@media (max-width:1023px){
  .nav-toggle{display:block;}
  .nav-wrap{flex-wrap:wrap;padding-top:8px;padding-bottom:8px;min-height:64px;gap:12px;}
  .brand{order:1;}
  .nav-right{order:2;margin-left:auto;}
  .nav-panel{
    order:3;flex:1 0 100%;
    overflow-x:auto;
    scroll-snap-type:x mandatory;
    -webkit-overflow-scrolling:touch;
    scrollbar-width:none;
  }
  .nav-panel::-webkit-scrollbar{display:none;}
  .nav-chip{scroll-snap-align:start;flex:0 0 auto;}
  .nav-drawer{inset:64px 0 0 0;}
}
@media (max-width:767px){
  .nav-chip i{display:none;}
  .brand-text b{font-size:17px;}
}

/* ---------- article head ---------- */
.article-head{padding:28px 0 0;}
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--t-3);margin-bottom:18px;
}
.crumb a{color:var(--t-3);}
.crumb a:hover{color:var(--c-primary);}
.crumb span.sep{color:var(--b-2);}
.crumb .current{color:var(--t-1);max-width:60%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.head-card{
  background:var(--bg-card);
  border:1px solid var(--b-1);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  padding:34px 36px;
}
.head-card h1{
  font-size:34px;
  line-height:1.3;
  letter-spacing:.2px;
  margin-bottom:16px;
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  font-size:14px;color:var(--t-3);
  padding-bottom:18px;
  border-bottom:1px dashed var(--b-1);
  margin-bottom:20px;
}
.meta-row .dot{color:var(--b-2);}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;
  border-radius:999px;font-size:12px;font-weight:500;
  background:var(--c-primary-100);color:var(--c-primary);
}
.badge-time{background:var(--bg-panel);color:var(--t-3);}
.badge-accent{background:#FFF1E7;color:#C8560F;}
.abstract{
  border-left:4px solid var(--c-primary);
  background:var(--bg-panel);
  border-radius:0 var(--r-sm) var(--r-sm) 0;
  padding:16px 20px;
  font-size:16px;
  color:var(--t-2);
  line-height:1.9;
}
@media (max-width:767px){
  .article-head{padding-top:18px;}
  .head-card{padding:22px 18px;}
  .head-card h1{font-size:26px;}
  .abstract{font-size:15.5px;padding:14px 16px;}
}

/* ---------- layout ---------- */
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,760px) 220px;
  justify-content:center;
  align-items:start;
  gap:44px;
  padding:44px 0 0;
}
.article-main{
  background:var(--bg-card);
  border:1px solid var(--b-1);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  padding:38px 40px 44px;
  min-width:0;
}
.article-body{font-size:16px;line-height:1.9;color:var(--t-2);}
.article-body>*+*{margin-top:1.2em;}
.article-body h2{
  font-size:28px;
  line-height:1.4;
  padding-left:14px;
  border-left:4px solid var(--c-primary);
  margin-top:1.9em;
  scroll-margin-top:96px;
}
.article-body h3{
  font-size:22px;
  line-height:1.5;
  margin-top:1.6em;
  scroll-margin-top:96px;
}
.article-body h4{font-size:18px;margin-top:1.4em;color:var(--t-1);}
.article-body p{margin-top:1.2em;}
.article-body strong{color:var(--t-1);font-weight:700;}
.article-body a{text-decoration:underline;}
.article-body ul,.article-body ol{margin-top:1.2em;padding-left:1.4em;}
.article-body li{margin-top:.5em;}
.article-body ul li{list-style:none;position:relative;padding-left:18px;}
.article-body ul li::before{
  content:"";position:absolute;left:0;top:.72em;
  width:7px;height:7px;border-radius:50%;background:var(--c-primary);
}
.article-body ol{list-style:none;counter-reset:item;}
.article-body ol li{counter-increment:item;position:relative;padding-left:30px;}
.article-body ol li::before{
  content:counter(item);
  position:absolute;left:0;top:.28em;
  width:20px;height:20px;border-radius:8px;
  background:var(--c-primary-100);color:var(--c-primary);
  font-size:12px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
  font-variant-numeric:tabular-nums;
}
.article-body blockquote{
  background:var(--c-primary-100);
  border-left:4px solid var(--c-primary);
  border-radius:var(--r-sm);
  padding:16px 20px;
  color:var(--t-2);
}
.article-body img{
  border-radius:var(--r-sm);
  margin:1.4em auto;
  box-shadow:var(--sh-1);
}
.article-body figure{margin:1.4em 0;}
.article-body figcaption{
  font-size:13px;color:var(--t-3);text-align:center;margin-top:10px;
}
.article-body table{
  width:100%;
  border-collapse:separate;
  border-spacing:0;
  border:1px solid var(--b-1);
  border-radius:var(--r-sm);
  overflow:hidden;
  font-size:15px;
}
.article-body thead th{
  background:var(--c-primary-100);
  color:var(--t-1);
  font-weight:600;
  text-align:left;
  padding:12px 16px;
  border-bottom:1px solid var(--b-1);
}
.article-body tbody td{
  padding:12px 16px;
  border-bottom:1px solid var(--b-1);
}
.article-body tbody tr:nth-child(even) td{background:#FAFCFF;}
.article-body tbody tr:last-child td{border-bottom:none;}
.article-body hr{border:none;border-top:1px solid var(--b-1);margin:2em 0;}

/* sticky toc */
.toc{
  position:sticky;
  top:96px;
  background:var(--bg-card);
  border:1px solid var(--b-1);
  border-radius:var(--r-md);
  box-shadow:var(--sh-1);
  padding:18px 16px;
}
.toc h4{font-size:14px;color:var(--t-3);font-weight:600;letter-spacing:.4px;margin-bottom:12px;}
.toc ul{list-style:none;display:flex;flex-direction:column;gap:2px;max-height:60vh;overflow:auto;}
.toc a{
  display:block;
  font-size:14px;
  color:var(--t-2);
  padding:7px 10px;
  border-radius:10px;
  line-height:1.5;
  border-left:2px solid transparent;
}
.toc a:hover{background:var(--bg-panel);color:var(--c-primary);}
.toc a.is-current{background:var(--c-primary-100);color:var(--c-primary-700);border-left-color:var(--c-primary);font-weight:600;}
@media (max-width:1199px){
  .article-layout{grid-template-columns:minmax(0,760px);gap:0;}
  .toc{display:none;}
}
@media (max-width:767px){
  .article-layout{padding-top:26px;}
  .article-main{padding:22px 18px 30px;}
  .article-body{font-size:15.5px;line-height:1.85;}
  .article-body h2{font-size:22px;}
  .article-body h3{font-size:19px;}
  .article-body table{font-size:14px;}
}

/* empty state */
.empty-state{
  text-align:center;
  padding:56px 20px;
}
.empty-state .empty-ico{
  width:48px;height:48px;margin:0 auto 16px;
  border-radius:14px;background:var(--c-primary-100);
  color:var(--c-primary);font-size:22px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
}
.empty-state h3{font-size:20px;margin-bottom:8px;}
.empty-state p{color:var(--t-3);font-size:14px;margin-bottom:20px;}

/* tail */
.article-tail{
  margin-top:34px;
  padding-top:24px;
  border-top:1px solid var(--b-1);
}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center;}
.tag-row .label{font-size:14px;color:var(--t-3);margin-right:2px;}
.tag{
  display:inline-flex;align-items:center;height:28px;padding:0 14px;
  border-radius:999px;font-size:13px;
  background:var(--bg-panel);color:var(--t-2);
  border:1px solid var(--b-1);
}
.tag:hover{background:var(--c-primary-100);color:var(--c-primary);border-color:#CFE3FB;}
.share-row{display:flex;align-items:center;gap:10px;margin-top:20px;flex-wrap:wrap;}
.share-btn{
  width:36px;height:36px;border-radius:10px;
  border:1px solid var(--b-1);
  background:#fff;color:var(--t-2);
  display:flex;align-items:center;justify-content:center;
  font-size:13px;cursor:pointer;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.share-btn:hover{background:var(--c-primary-100);color:var(--c-primary);border-color:#CFE3FB;}
.back-row{
  display:flex;flex-wrap:wrap;gap:12px;
  margin-top:24px;
}

/* related */
.section{padding:72px 0 0;}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:16px;
  margin-bottom:30px;
}
.section-head h2{font-size:28px;}
.section-head p{font-size:14px;color:var(--t-3);margin-top:6px;}
.related-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.card{
  background:var(--bg-card);
  border:1px solid var(--b-1);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform .22s ease,box-shadow .22s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.card-media{position:relative;aspect-ratio:16/10;background:var(--bg-panel);overflow:hidden;}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.card:hover .card-media img{transform:scale(1.04);}
.card-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-body h3{font-size:18px;line-height:1.55;}
.card-body p{font-size:14px;color:var(--t-2);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--t-3);
}
@media (max-width:1023px){
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
  .section{padding-top:56px;}
  .section-head h2{font-size:24px;}
}
@media (max-width:575px){
  .related-grid{grid-template-columns:1fr;}
  .card-body{padding:18px;}
  .section-head{flex-direction:column;align-items:flex-start;}
}

/* CTA */
.cta-wrap{padding:72px 0 0;}
.cta-card{
  background:linear-gradient(0deg,rgba(11,114,231,.06),rgba(11,114,231,.06)),#fff;
  border:1px solid #D6E6FA;
  border-radius:20px;
  padding:38px 40px;
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:36px;
  align-items:center;
}
.cta-card h2{font-size:28px;margin-bottom:12px;}
.cta-card .cta-sub{font-size:15px;color:var(--t-2);margin-bottom:20px;}
.cta-points{list-style:none;display:flex;flex-direction:column;gap:12px;}
.cta-points li{display:flex;gap:10px;font-size:15px;color:var(--t-2);}
.cta-points li .tick{
  width:20px;height:20px;flex:0 0 20px;border-radius:50%;
  background:var(--c-primary);color:#fff;font-size:12px;
  display:flex;align-items:center;justify-content:center;margin-top:5px;
}
.disclaim{font-size:12px;color:var(--t-3);margin-top:16px;line-height:1.7;}
.form-card{
  background:#fff;border:1px solid var(--b-1);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);padding:24px;
}
.form-card h3{font-size:18px;margin-bottom:6px;}
.form-card .form-tip{font-size:13px;color:var(--t-3);margin-bottom:16px;}
.field{margin-bottom:14px;}
.field label{display:block;font-size:14px;color:var(--t-2);margin-bottom:6px;}
.field input{
  width:100%;height:48px;padding:0 14px;
  border:1px solid var(--b-2);border-radius:var(--r-sm);
  font-size:15px;color:var(--t-1);background:#fff;
  font-family:inherit;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field input::placeholder{color:#A9B8CC;}
.field input:focus{
  outline:none;border-color:var(--c-primary);
  box-shadow:0 0 0 3px rgba(11,114,231,.12);
}
.form-card .btn{width:100%;}
.privacy{font-size:12px;color:var(--t-3);margin-top:12px;line-height:1.7;}
.form-alert{
  display:none;margin-bottom:14px;padding:10px 14px;border-radius:10px;
  background:#E8F9F3;color:#0B7A5B;font-size:13px;border:1px solid #BFEBDC;
}
.form-alert.is-show{display:block;}
@media (max-width:1023px){
  .cta-card{grid-template-columns:1fr;gap:26px;padding:30px 24px;}
  .cta-card h2{font-size:24px;}
}
@media (max-width:767px){
  .cta-wrap{padding-top:52px;}
  .cta-card{padding:24px 18px;border-radius:16px;}
  .form-card{padding:20px 18px;}
}

/* footer */
.site-footer{padding:80px 0 40px;margin-top:80px;}
.footer-card{
  background:var(--bg-panel);
  border:1px solid var(--b-1);
  border-radius:20px;
  padding:40px 40px 26px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:32px;
}
.footer-brand p{font-size:14px;color:var(--t-2);margin-top:14px;line-height:1.85;}
.footer-col h4{font-size:15px;margin-bottom:14px;color:var(--t-1);}
.footer-col ul{list-style:none;display:flex;flex-direction:column;gap:10px;}
.footer-col li{font-size:14px;color:var(--t-2);}
.footer-col a{color:var(--t-2);}
.footer-col a:hover{color:var(--c-primary);}
.fnote{font-size:13px;color:var(--t-3);line-height:1.7;}
.footer-bottom{
  margin-top:32px;padding-top:20px;border-top:1px solid var(--b-2);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:var(--t-3);
}
@media (max-width:1023px){
  .site-footer{padding-top:56px;margin-top:56px;}
  .footer-card{padding:28px 24px 20px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px;}
  .footer-brand{grid-column:1 / -1;}
}
@media (max-width:575px){
  .footer-grid{grid-template-columns:1fr;}
}

/* roulang page: category1 */
:root{
  --c-primary:#0B72E7;
  --c-primary-700:#0956B3;
  --c-primary-100:#E8F1FE;
  --c-accent:#FF7A2F;
  --c-accent-100:#FFF1E7;
  --c-ok:#12B981;
  --c-warn:#F5A524;
  --bg-page:#F6F9FE;
  --bg-card:#FFFFFF;
  --bg-panel:#EEF4FD;
  --t-1:#101C33;
  --t-2:#41536F;
  --t-3:#8496B0;
  --b-1:#E4ECF7;
  --b-2:#CBD9EC;
  --sh-1:0 1px 2px rgba(16,28,51,.04),0 6px 18px rgba(16,28,51,.06);
  --sh-2:0 10px 28px rgba(11,114,231,.14);
  --r-lg:18px;
  --r-md:14px;
  --r-sm:12px;
  --sp-block:88px;
  --font: "PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--t-2);
  background:var(--bg-page);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;color:var(--t-1);font-weight:700;line-height:1.35}
h1{font-size:40px;line-height:1.25}
h2{font-size:28px;line-height:1.35}
h3{font-size:20px;line-height:1.5}
p{margin:0}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer}
figure{margin:0}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
  outline:2px solid var(--c-primary);
  outline-offset:2px;
  border-radius:8px;
}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.block{margin-bottom:var(--sp-block)}

/* ---------- 通用组件 ---------- */
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:999px;font-size:12px;font-weight:500;
  background:var(--c-primary-100);color:var(--c-primary-700);
  white-space:nowrap;
}
.badge-accent{background:var(--c-accent-100);color:#C2560F}
.badge-muted{background:var(--bg-panel);color:var(--t-3)}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--r-sm);
  border:1px solid transparent;font-size:15px;font-weight:500;
  transition:transform .2s ease,background .2s ease,box-shadow .2s ease,border-color .2s ease,color .2s ease;
  white-space:nowrap;line-height:1;
}
.btn-primary{background:var(--c-primary);color:#fff}
.btn-primary:hover{background:var(--c-primary-700);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0) scale(.995)}
.btn-ghost{background:#fff;border-color:var(--b-2);color:var(--c-primary-700)}
.btn-ghost:hover{background:var(--c-primary-100);border-color:var(--c-primary-100)}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:10px}
.btn-lg{height:52px;padding:0 28px;font-size:16px}
.btn-block{width:100%}

.link-more{color:var(--c-primary);font-size:14.5px;font-weight:500;text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.link-more:hover{color:var(--c-primary-700)}

.block-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px}
.block-head h2{font-size:30px}
.block-head p{margin-top:8px;font-size:15.5px;color:var(--t-2);max-width:620px}

.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--t-3);margin-bottom:18px;flex-wrap:wrap}
.crumbs a{color:var(--t-3)}
.crumbs a:hover{color:var(--c-primary)}
.crumbs .cur{color:var(--t-1)}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;border-bottom:1px solid var(--b-1);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-1)}
.nav-wrap{display:flex;align-items:center;gap:20px;height:72px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:32px;height:32px;border-radius:10px;
  background:var(--c-primary-100);color:var(--c-primary-700);
  display:grid;place-items:center;font-weight:700;font-size:16px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text b{font-size:19px;font-weight:700;color:var(--t-1);letter-spacing:.01em}
.brand-text i{font-style:normal;font-size:11px;font-weight:500;color:var(--t-3)}
.nav-panel{
  display:flex;align-items:center;gap:4px;
  margin-left:auto;padding:6px;background:var(--bg-panel);border-radius:16px;
}
.nav-chip{
  display:flex;align-items:center;gap:8px;
  padding:7px 12px;border-radius:10px;
  transition:background .2s ease,box-shadow .2s ease,color .2s ease;
}
.nav-chip .chip-ico{
  width:20px;height:20px;border-radius:6px;flex:0 0 auto;
  background:#fff;color:var(--c-primary);
  display:grid;place-items:center;font-size:11px;font-weight:700;
  transition:background .2s ease,color .2s ease;
}
.nav-chip b{display:block;font-size:14px;font-weight:500;color:var(--t-1);line-height:1.3}
.nav-chip i{display:block;font-style:normal;font-size:11px;color:var(--t-3);line-height:1.3}
.nav-chip:hover{background:#fff;box-shadow:var(--sh-1)}
.nav-chip.is-active{background:var(--c-primary);box-shadow:var(--sh-2)}
.nav-chip.is-active b{color:#fff}
.nav-chip.is-active i{color:rgba(255,255,255,.78)}
.nav-chip.is-active .chip-ico{background:rgba(255,255,255,.22);color:#fff}
.nav-right{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--b-2);background:#fff;
  align-items:center;justify-content:center;
}
.nav-toggle span{position:relative;display:block;width:18px;height:2px;border-radius:2px;background:var(--t-1);transition:background .2s ease}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--t-1);
  transition:transform .2s ease;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-toggle[aria-expanded="true"] span{background:transparent}
.nav-toggle[aria-expanded="true"] span::before{transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span::after{transform:translateY(-6px) rotate(-45deg)}

.nav-drawer{
  display:none;position:fixed;top:72px;left:0;right:0;
  background:#0F1B2D;padding:20px;z-index:55;
  box-shadow:0 24px 40px rgba(15,27,45,.28);
}
.nav-drawer.is-open{display:block;animation:drawerIn .24s ease both}
@keyframes drawerIn{from{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}
.drawer-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;max-width:720px;margin:0 auto}
.drawer-chip{
  display:flex;flex-direction:column;gap:2px;padding:14px;
  border-radius:12px;border:1px solid rgba(255,255,255,.18);
  background:rgba(255,255,255,.04);color:#fff;
  transition:border-color .2s ease,background .2s ease;
}
.drawer-chip b{font-size:14px;font-weight:600;color:#fff}
.drawer-chip i{font-style:normal;font-size:11px;color:rgba(255,255,255,.62)}
.drawer-chip:hover{border-color:rgba(255,255,255,.4);background:rgba(255,255,255,.09)}
.drawer-chip.is-active{border-color:var(--c-primary);color:#8CC0FF}
.drawer-chip.is-active b{color:#8CC0FF}
.drawer-chip.is-active i{color:rgba(140,192,255,.72)}

/* ---------- 首屏 ---------- */
main{padding-top:36px}
.hero-card{
  display:grid;grid-template-columns:1.35fr .95fr;
  background:#fff;border:1px solid var(--b-1);border-radius:20px;
  box-shadow:var(--sh-1);overflow:hidden;
}
.hero-copy{padding:44px 40px;display:flex;flex-direction:column;align-items:flex-start}
.hero-copy h1{font-size:38px;letter-spacing:-.01em;margin:16px 0 16px}
.hero-sub{font-size:17px;line-height:1.8;color:var(--t-2);max-width:560px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:28px}
.hero-stats{display:flex;gap:36px;flex-wrap:wrap;margin-top:34px;padding-top:24px;border-top:1px solid var(--b-1);width:100%}
.hero-stats li{display:flex;flex-direction:column;gap:2px}
.hero-stats b{font-size:28px;font-weight:700;color:var(--c-primary);font-variant-numeric:tabular-nums;line-height:1.2}
.hero-stats span{font-size:13px;color:var(--t-3)}
.hero-media{position:relative;min-height:400px;background:var(--bg-panel)}
.hero-media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.float-card{
  position:absolute;left:20px;bottom:20px;right:20px;
  display:flex;align-items:center;gap:10px;
  background:rgba(255,255,255,.94);backdrop-filter:blur(6px);
  border:1px solid var(--b-1);border-radius:14px;padding:12px 16px;
  box-shadow:var(--sh-1);
}
.float-card .dot{width:9px;height:9px;border-radius:50%;background:var(--c-ok);flex:0 0 auto;box-shadow:0 0 0 4px rgba(18,185,129,.16)}
.float-card b{display:block;font-size:14px;color:var(--t-1);line-height:1.4}
.float-card i{display:block;font-style:normal;font-size:12px;color:var(--t-3);line-height:1.4}

/* ---------- 目录 + 长文 ---------- */
.doc-layout{display:grid;grid-template-columns:240px minmax(0,1fr);gap:48px;align-items:start}
.toc{
  position:sticky;top:96px;
  background:#fff;border:1px solid var(--b-1);border-radius:16px;
  padding:18px;box-shadow:var(--sh-1);
}
.toc-title{font-size:12px;color:var(--t-3);font-weight:500;letter-spacing:.06em;margin-bottom:8px}
.toc-link{
  display:block;padding:9px 12px;border-radius:10px;
  font-size:14px;color:var(--t-2);border-left:3px solid transparent;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.toc-link:hover{background:var(--bg-panel);color:var(--c-primary-700)}
.toc-link.is-active{background:var(--c-primary-100);color:var(--c-primary-700);border-left-color:var(--c-primary);font-weight:500}
.toc-cta{margin-top:14px;padding-top:14px;border-top:1px solid var(--b-1)}
.toc-cta .btn{height:40px;font-size:14px;width:100%}

.doc{max-width:780px}
.doc-section{padding:30px 0;border-top:1px solid var(--b-1)}
.doc-section:first-child{border-top:0;padding-top:0}
.doc-section h2{
  font-size:27px;position:relative;padding-left:16px;margin-bottom:14px;
}
.doc-section h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;
  border-radius:3px;background:var(--c-primary);
}
.doc-section h3{font-size:20px;margin:24px 0 10px}
.doc-section p{font-size:16px;color:var(--t-2);margin-bottom:12px}
.doc-section p:last-child{margin-bottom:0}
.doc-list{display:grid;gap:10px;margin:16px 0}
.doc-list li{position:relative;padding-left:20px;font-size:15.5px;color:var(--t-2)}
.doc-list li::before{
  content:"";position:absolute;left:3px;top:.72em;
  width:7px;height:7px;border-radius:50%;background:var(--c-primary);
}
.doc-list li b{color:var(--t-1);font-weight:600}
.doc-list.is-num{counter-reset:step}
.doc-list.is-num li{padding-left:32px}
.doc-list.is-num li::before{
  counter-increment:step;content:counter(step);
  width:20px;height:20px;border-radius:6px;top:.42em;left:0;
  background:var(--c-primary-100);color:var(--c-primary-700);
  font-size:12px;font-weight:700;display:grid;place-items:center;
}
.quote{
  margin:20px 0;padding:16px 20px;border-radius:12px;
  background:var(--c-primary-100);border-left:4px solid var(--c-primary);
  color:var(--c-primary-700);font-size:15.5px;
}
.tip{
  display:flex;gap:12px;align-items:flex-start;margin:18px 0;
  padding:14px 18px;border:1px solid var(--b-1);border-radius:14px;
  background:var(--bg-panel);font-size:14.5px;color:var(--t-2);
}
.tip-ico{
  flex:0 0 auto;width:22px;height:22px;border-radius:7px;margin-top:3px;
  background:var(--c-accent-100);color:#C2560F;
  display:grid;place-items:center;font-size:12px;font-weight:700;
}
.tip b{color:var(--t-1)}
.doc-figure{margin:22px 0}
.doc-figure img{
  width:100%;border-radius:14px;border:1px solid var(--b-1);
  background:var(--bg-panel);object-fit:cover;aspect-ratio:16/9;
}
.doc-figure figcaption{margin-top:10px;font-size:13px;color:var(--t-3)}
.metric-row{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:22px 0}
.metric{
  background:#fff;border:1px solid var(--b-1);border-radius:var(--r-md);
  padding:18px;box-shadow:var(--sh-1);
}
.metric b{display:block;font-size:26px;font-weight:700;color:var(--c-primary);font-variant-numeric:tabular-nums;line-height:1.25}
.metric b em{font-style:normal;font-size:14px;color:var(--t-3);font-weight:500;margin-left:4px}
.metric span{display:block;font-size:13px;color:var(--t-3);margin-top:2px}

/* ---------- 资讯类型卡 ---------- */
.type-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.type-card{
  background:#fff;border:1px solid var(--b-1);border-radius:var(--r-lg);
  padding:26px 24px;box-shadow:var(--sh-1);
  display:flex;flex-direction:column;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.type-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#D9E7FB}
.type-ico{
  width:44px;height:44px;border-radius:13px;margin-bottom:16px;
  background:var(--c-primary-100);color:var(--c-primary-700);
  display:grid;place-items:center;font-size:17px;font-weight:700;
}
.type-card h3{font-size:18px;margin-bottom:8px}
.type-card p{font-size:14.5px;color:var(--t-2);line-height:1.75;margin-bottom:16px}
.type-card .link-more{margin-top:auto}

/* ---------- 阅读节奏 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.steps li{
  position:relative;background:#fff;border:1px solid var(--b-1);
  border-radius:16px;padding:24px;box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease;
}
.steps li:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.step-no{
  display:inline-block;font-size:12px;font-weight:700;letter-spacing:.08em;
  color:var(--c-primary);background:var(--c-primary-100);
  border-radius:999px;padding:2px 10px;margin-bottom:12px;
}
.steps h3{font-size:17px;margin-bottom:6px}
.steps p{font-size:14px;color:var(--t-2);line-height:1.75}

/* ---------- 场景 ---------- */
.scene-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:24px}
.scene-main{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  min-height:360px;border:1px solid var(--b-1);box-shadow:var(--sh-1);
  display:flex;align-items:flex-end;
}
.scene-main img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.scene-main:hover img{transform:scale(1.03)}
.scene-main::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(15,27,45,0) 34%,rgba(15,27,45,.86) 100%);
}
.scene-main-body{position:relative;z-index:2;padding:28px;color:#fff}
.scene-main-body h3{color:#fff;font-size:22px;margin:12px 0 8px}
.scene-main-body p{font-size:14.5px;line-height:1.75;color:rgba(255,255,255,.86);max-width:460px}
.scene-side{display:grid;gap:20px;align-content:start}
.scene-card{
  display:flex;gap:16px;background:#fff;border:1px solid var(--b-1);
  border-radius:var(--r-md);padding:22px;box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease;
}
.scene-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.scene-card .type-ico{margin-bottom:0;flex:0 0 auto;width:40px;height:40px;border-radius:12px;font-size:15px}
.scene-card h3{font-size:17px;margin-bottom:6px}
.scene-card p{font-size:14px;color:var(--t-2);line-height:1.75}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;margin:0 auto}
.faq-head{text-align:center;margin-bottom:32px}
.faq-head h2{font-size:30px}
.faq-head p{margin-top:10px;font-size:15.5px;color:var(--t-2)}
.faq-list{background:#fff;border:1px solid var(--b-1);border-radius:var(--r-lg);box-shadow:var(--sh-1);overflow:hidden}
.faq-item{border-top:1px solid var(--b-1)}
.faq-item:first-child{border-top:0}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;font-size:17px;font-weight:600;color:var(--t-1);
  cursor:pointer;list-style:none;transition:background .2s ease,box-shadow .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";flex:0 0 auto;width:26px;height:26px;border-radius:8px;
  background:var(--bg-panel);color:var(--c-primary-700);
  display:grid;place-items:center;font-size:16px;font-weight:600;line-height:1;
  transition:background .2s ease,color .2s ease;
}
.faq-item summary:hover{background:#FAFCFF}
.faq-item[open] summary{box-shadow:inset 3px 0 0 var(--c-primary);background:#FAFCFF}
.faq-item[open] summary::after{content:"−";background:var(--c-primary);color:#fff}
.faq-body{padding:0 24px 22px;font-size:15.5px;color:var(--t-2);line-height:1.85}

/* ---------- CTA 表单 ---------- */
.cta-card{
  display:grid;grid-template-columns:1.2fr .8fr;gap:36px;
  background:#F2F8FF;border:1px solid #D6E6FC;border-radius:20px;
  padding:40px;box-shadow:var(--sh-1);
}
.cta-copy h2{font-size:29px;margin-bottom:12px}
.cta-copy > p{font-size:16px;color:var(--t-2);max-width:560px}
.check-list{display:grid;gap:10px;margin:20px 0}
.check-list li{position:relative;padding-left:28px;font-size:15px;color:var(--t-2)}
.check-list li::before{
  content:"";position:absolute;left:0;top:.34em;width:18px;height:18px;border-radius:6px;
  background:var(--c-primary-100) url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath fill='%230B72E7' d='M6.4 11.4 3 8l1.1-1.1 2.3 2.3 5-5L12.5 5.3z'/%3E%3C/svg%3E") center/14px no-repeat;
}
.tiny{font-size:12.5px;color:var(--t-3);margin-top:14px}
.cta-form{background:#fff;border:1px solid var(--b-1);border-radius:var(--r-lg);padding:26px;box-shadow:var(--sh-1);align-self:start}
.field{margin-bottom:16px}
.field label{display:block;font-size:14px;color:var(--t-2);margin-bottom:6px}
.field input{
  width:100%;height:48px;padding:0 14px;border-radius:var(--r-sm);
  border:1px solid var(--b-2);background:#fff;color:var(--t-1);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field input::placeholder{color:var(--t-3)}
.field input:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(11,114,231,.14)}
.form-note{font-size:12px;color:var(--t-3);margin-top:12px;text-align:center}
.form-ok{
  margin-top:14px;padding:11px 14px;border-radius:var(--r-sm);
  background:#E8F8F2;border:1px solid #B7EBD8;color:#0B7A57;font-size:14px;
}

/* ---------- 页脚 ---------- */
.site-footer{padding:0 0 56px}
.footer-card{
  background:#fff;border:1px solid var(--b-1);border-radius:20px;
  padding:44px 40px 28px;box-shadow:var(--sh-1);
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:36px}
.footer-brand .brand{margin-bottom:14px}
.footer-brand p{font-size:14px;color:var(--t-2);line-height:1.8;max-width:360px}
.footer-col h4{font-size:15px;margin-bottom:14px;color:var(--t-1)}
.footer-col ul{display:grid;gap:10px}
.footer-col li{font-size:14px;color:var(--t-2)}
.footer-col a{color:var(--t-2);transition:color .2s ease}
.footer-col a:hover{color:var(--c-primary)}
.fnote{color:var(--t-3);font-size:13px;line-height:1.7}
.footer-bottom{
  margin-top:32px;padding-top:20px;border-top:1px solid var(--b-1);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--t-3);
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container{padding:0 28px}
  .nav-chip i{display:none}
  .nav-chip{padding:9px 12px}
}
@media (max-width:1023px){
  :root{--sp-block:64px}
  .container{padding:0 24px}
  h1{font-size:32px}
  .nav-panel{display:none}
  .nav-toggle{display:flex}
  .nav-wrap{height:72px}
  .hero-card{grid-template-columns:1fr}
  .hero-copy{padding:34px 26px}
  .hero-copy h1{font-size:30px}
  .hero-media{min-height:300px;order:-1}
  .doc-layout{grid-template-columns:1fr;gap:24px}
  .toc{
    position:static;display:flex;gap:8px;overflow-x:auto;padding:10px;
    scroll-snap-type:x mandatory;-ms-overflow-style:none;scrollbar-width:none;
  }
  .toc::-webkit-scrollbar{display:none}
  .toc-title{display:none}
  .toc-link{
    white-space:nowrap;border-left:0;border-bottom:3px solid transparent;
    scroll-snap-align:start;padding:8px 12px;background:var(--bg-panel);
  }
  .toc-link.is-active{border-left:0;border-bottom-color:var(--c-primary)}
  .toc-cta{display:none}
  .doc{max-width:none}
  .type-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .scene-grid{grid-template-columns:1fr}
  .cta-card{grid-template-columns:1fr;padding:32px 26px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .block-head{flex-direction:column;align-items:flex-start;gap:12px}
}
@media (max-width:767px){
  :root{--sp-block:48px}
  .container{padding:0 16px}
  body{font-size:15.5px;line-height:1.8}
  main{padding-top:22px}
  h1{font-size:27px}
  h2{font-size:22px}
  .hero-copy h1{font-size:26px}
  .hero-sub{font-size:15.5px}
  .hero-copy{padding:26px 20px}
  .hero-actions{gap:10px}
  .hero-actions .btn{width:100%}
  .hero-stats{gap:20px;margin-top:26px}
  .hero-stats b{font-size:24px}
  .hero-media{min-height:220px}
  .block-head h2{font-size:23px}
  .doc-section h2{font-size:22px;padding-left:13px}
  .doc-section h3{font-size:18px}
  .metric-row{grid-template-columns:1fr;gap:12px}
  .type-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .scene-main{min-height:280px}
  .scene-main-body{padding:20px}
  .faq-item summary{font-size:16px;padding:16px 18px}
  .faq-body{padding:0 18px 18px;font-size:15px}
  .cta-card{padding:24px 18px;gap:24px}
  .cta-form{padding:20px 18px}
  .footer-card{padding:28px 20px 20px}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .footer-bottom{flex-direction:column;gap:8px}
  .drawer-grid{grid-template-columns:1fr}
  .nav-right .btn-sm{padding:0 12px;font-size:13px}
}
@media (max-width:400px){
  .brand-text b{font-size:17px}
  .nav-right .btn-sm{display:none}
}

/* roulang page: category2 */
:root{
  --c-primary:#0B72E7;
  --c-primary-700:#0956B3;
  --c-primary-100:#E8F1FE;
  --c-accent:#FF7A2F;
  --c-ok:#12B981;
  --c-warn:#F5A524;
  --bg-page:#F6F9FE;
  --bg-card:#FFFFFF;
  --bg-panel:#EEF4FD;
  --t-1:#101C33;
  --t-2:#41536F;
  --t-3:#8496B0;
  --b-1:#E4ECF7;
  --b-2:#CBD9EC;
  --sh-1:0 1px 2px rgba(16,28,51,.04), 0 6px 18px rgba(16,28,51,.06);
  --sh-2:0 10px 28px rgba(11,114,231,.14);
  --r-lg:18px;
  --r-md:14px;
  --r-sm:12px;
  --r-pill:999px;
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--t-2);
  background:var(--bg-page);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;color:var(--t-1);font-weight:700;line-height:1.35;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--c-primary-700);}
img{max-width:100%;display:block;border:0;}
button{font-family:inherit;cursor:pointer;border:0;background:none;}
input,select{font-family:inherit;font-size:15px;color:var(--t-1);}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px;}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 32px;
}
.section{padding:88px 0;}
.section-tight{padding:64px 0;}
.section-head{max-width:760px;margin-bottom:34px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  height:26px;padding:0 12px;margin-bottom:14px;
  border-radius:var(--r-pill);
  background:var(--c-primary-100);color:var(--c-primary-700);
  font-size:13px;font-weight:500;letter-spacing:.02em;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-primary);}
.section-head h2{font-size:30px;margin-bottom:12px;}
.section-head p{font-size:16px;color:var(--t-2);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;
  border-radius:var(--r-sm);
  font-size:15px;font-weight:600;line-height:1;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,border-color .18s ease,color .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 6px 16px rgba(11,114,231,.22);}
.btn-primary:hover{background:var(--c-primary-700);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0) scale(.985);}
.btn-ghost{background:#fff;color:var(--c-primary);border:1px solid var(--b-2);}
.btn-ghost:hover{background:var(--c-primary-100);border-color:var(--c-primary);color:var(--c-primary-700);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:10px;}
.btn-lg{height:52px;padding:0 30px;font-size:16px;}
.btn[disabled]{background:#e9eef7;color:#98a8c0;box-shadow:none;cursor:not-allowed;opacity:.75;}
.link-more{font-size:15px;font-weight:600;border-bottom:2px solid transparent;padding-bottom:2px;}
.link-more:hover{border-bottom-color:var(--c-primary);}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:24px;padding:0 12px;border-radius:var(--r-pill);
  font-size:12px;font-weight:500;line-height:1;
  background:var(--c-primary-100);color:var(--c-primary-700);
}
.badge-time{background:var(--bg-panel);color:var(--t-3);}
.badge-accent{background:rgba(255,122,47,.12);color:#D9581A;}
.badge-ok{background:rgba(18,185,129,.12);color:#0B8C63;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:90;
  background:#fff;
  border-bottom:1px solid var(--b-1);
  transition:box-shadow .24s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-1);}
.nav-wrap{display:flex;align-items:center;gap:22px;height:72px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--t-1);}
.brand:hover{color:var(--t-1);}
.brand-mark{
  width:32px;height:32px;border-radius:10px;
  background:var(--c-primary-100);color:var(--c-primary-700);
  display:flex;align-items:center;justify-content:center;
  font-size:16px;font-weight:700;
}
.brand-text{display:flex;flex-direction:column;line-height:1.1;}
.brand-text b{font-size:19px;font-weight:700;letter-spacing:.01em;}
.brand-text i{font-style:normal;font-size:11px;font-weight:500;color:var(--t-3);letter-spacing:.08em;}
.nav-panel{
  display:flex;align-items:center;gap:6px;
  flex:1 1 auto;
  background:var(--bg-panel);
  border-radius:16px;
  padding:6px;
  min-width:0;
}
.nav-chip{
  display:flex;align-items:center;gap:9px;
  flex:1 1 0;min-width:0;
  padding:8px 12px;border-radius:10px;
  color:var(--t-2);
  transition:background-color .18s ease,box-shadow .18s ease,color .18s ease,transform .18s ease;
}
.nav-chip:hover{background:#fff;box-shadow:var(--sh-1);color:var(--t-1);transform:translateY(-1px);}
.nav-chip span{display:flex;flex-direction:column;line-height:1.25;min-width:0;}
.nav-chip b{font-size:14px;font-weight:600;color:var(--t-1);white-space:nowrap;}
.nav-chip i{font-style:normal;font-size:11px;color:var(--t-3);white-space:nowrap;}
.nav-chip .chip-ico{
  flex:0 0 auto;width:26px;height:26px;border-radius:8px;
  display:flex;align-items:center;justify-content:center;
  background:#fff;color:var(--c-primary-700);
  font-size:12px;font-weight:700;
  border:1px solid var(--b-1);
}
.nav-chip.is-active{background:var(--c-primary);box-shadow:0 6px 16px rgba(11,114,231,.24);}
.nav-chip.is-active b{color:#fff;}
.nav-chip.is-active i{color:rgba(255,255,255,.78);}
.nav-chip.is-active .chip-ico{background:rgba(255,255,255,.18);color:#fff;border-color:transparent;}
.nav-right{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(--b-1);background:#fff;
  position:relative;z-index:95;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:50%;transform:translateX(-50%);
  width:18px;height:2px;border-radius:2px;background:var(--t-1);
  transition:transform .22s ease,opacity .22s ease,background-color .22s ease;
}
.nav-toggle span{top:50%;margin-top:-1px;}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
body.nav-open .nav-toggle span{background:#fff;}
body.nav-open .nav-toggle span::before{transform:translateX(-50%) translateY(6px) rotate(45deg);background:#fff;}
body.nav-open .nav-toggle span::after{transform:translateX(-50%) translateY(-6px) rotate(-45deg);background:#fff;}

/* ---------- 页头横幅 ---------- */
.page-banner{
  position:relative;
  min-height:280px;
  display:flex;align-items:flex-end;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.page-banner::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(9,20,38,.86) 0%,rgba(9,20,38,.66) 46%,rgba(9,20,38,.26) 100%);
}
.banner-inner{
  position:relative;z-index:2;
  width:100%;
  padding:56px 0 44px;
  color:#fff;
}
.crumb{
  display:flex;align-items:center;gap:8px;
  font-size:13px;color:rgba(255,255,255,.72);
  margin-bottom:16px;
}
.crumb a{color:rgba(255,255,255,.86);}
.crumb a:hover{color:#fff;}
.crumb span{color:rgba(255,255,255,.5);}
.banner-inner h1{
  color:#fff;font-size:38px;line-height:1.28;
  max-width:820px;margin-bottom:14px;
}
.banner-inner .banner-sub{
  font-size:17px;line-height:1.85;color:rgba(255,255,255,.86);
  max-width:720px;
}
.banner-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.banner-tags .tag{
  height:28px;padding:0 14px;border-radius:var(--r-pill);
  display:inline-flex;align-items:center;
  font-size:13px;color:#fff;
  background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.26);
}

/* ---------- 流程速览 ---------- */
.stats-strip{
  display:grid;grid-template-columns:repeat(4,1fr);
  gap:16px;
  margin-top:-40px;
  position:relative;z-index:3;
}
.stat-cell{
  background:var(--bg-card);
  border:1px solid var(--b-1);
  border-radius:var(--r-md);
  box-shadow:var(--sh-1);
  padding:22px 22px 20px;
  transition:transform .2s ease,box-shadow .2s ease;
}
.stat-cell:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.stat-cell .num{
  font-size:28px;font-weight:700;color:var(--c-primary);
  font-variant-numeric:tabular-nums;
  line-height:1.2;margin-bottom:4px;
}
.stat-cell .num em{font-style:normal;font-size:15px;font-weight:600;margin-left:2px;color:var(--t-2);}
.stat-cell .label{font-size:14px;color:var(--t-3);}

/* ---------- 时间轴 ---------- */
.timeline{position:relative;padding-left:72px;display:flex;flex-direction:column;gap:22px;}
.timeline::before{
  content:"";position:absolute;left:19px;top:10px;bottom:10px;width:2px;
  border-radius:2px;
  background:linear-gradient(180deg,var(--c-primary) 0%,#BBD7F8 62%,rgba(187,215,248,0) 100%);
}
.tl-item{position:relative;}
.tl-dot{
  position:absolute;left:-72px;top:20px;
  width:40px;height:40px;border-radius:12px;
  background:#fff;border:1px solid var(--b-2);
  color:var(--c-primary-700);
  display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:700;
  font-variant-numeric:tabular-nums;
  box-shadow:0 4px 12px rgba(16,28,51,.08);
  transition:background-color .2s ease,color .2s ease,border-color .2s ease;
}
.tl-info{
  position:absolute;left:-30px;top:26px;
  width:0;height:0;border-top:8px solid transparent;border-bottom:8px solid transparent;
  border-right:10px solid #fff;
}
.tl-card{
  background:var(--bg-card);
  border:1px solid var(--b-1);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  padding:26px 28px;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.tl-item:hover .tl-card{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#D8E6FA;}
.tl-item:hover .tl-dot{background:var(--c-primary);color:#fff;border-color:var(--c-primary);}
.tl-head{display:flex;align-items:center;flex-wrap:wrap;gap:12px;margin-bottom:10px;}
.tl-head h3{font-size:20px;}
.tl-card > p{font-size:15.5px;color:var(--t-2);}
.tl-list{margin-top:16px;display:grid;gap:10px;}
.tl-list li{
  position:relative;padding-left:26px;
  font-size:15px;color:var(--t-2);
}
.tl-list li::before{
  content:"";position:absolute;left:4px;top:11px;
  width:8px;height:8px;border-radius:50%;
  background:var(--c-primary-100);
  box-shadow:inset 0 0 0 2px var(--c-primary);
}
.tl-figure{
  margin-top:18px;border-radius:var(--r-md);overflow:hidden;
  border:1px solid var(--b-1);background:var(--bg-panel);
}
.tl-figure img{width:100%;height:210px;object-fit:cover;}
.tl-figure figcaption{font-size:13px;color:var(--t-3);padding:10px 14px;background:#fff;}

/* ---------- 材料 + 报名 ---------- */
.prepare-grid{display:grid;grid-template-columns:7fr 5fr;gap:28px;align-items:start;}
.panel-card{
  background:var(--bg-card);
  border:1px solid var(--b-1);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  padding:28px;
}
.panel-card h3{font-size:20px;margin-bottom:16px;}
.check-list{display:grid;gap:14px;}
.check-list li{
  display:flex;gap:12px;align-items:flex-start;
  padding-bottom:14px;border-bottom:1px dashed var(--b-1);
}
.check-list li:last-child{border-bottom:0;padding-bottom:0;}
.check-list .tick{
  flex:0 0 auto;width:22px;height:22px;border-radius:50%;
  background:var(--c-primary-100);color:var(--c-primary-700);
  display:flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:700;margin-top:4px;
}
.check-list b{display:block;font-size:16px;color:var(--t-1);font-weight:600;}
.check-list span{font-size:14.5px;color:var(--t-2);}
.prepare-media{
  margin-top:22px;border-radius:var(--r-md);overflow:hidden;
  border:1px solid var(--b-1);background:var(--bg-panel);
}
.prepare-media img{width:100%;height:230px;object-fit:cover;}

.signup-card{
  background:linear-gradient(180deg,#F4F9FF 0%,#FFFFFF 100%);
  border:1px solid #D5E6FB;
  border-radius:20px;
  box-shadow:var(--sh-1);
  padding:28px;
}
.signup-card h3{font-size:22px;margin-bottom:8px;}
.signup-card .sub{font-size:14.5px;color:var(--t-2);margin-bottom:22px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:14px;color:var(--t-2);margin-bottom:8px;font-weight:500;}
.field input,.field select{
  width:100%;height:48px;padding:0 14px;
  border:1px solid var(--b-2);border-radius:var(--r-sm);
  background:#fff;outline:none;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.field input:focus,.field select:focus{
  border-color:var(--c-primary);
  box-shadow:0 0 0 3px var(--c-primary-100);
}
.field input::placeholder{color:#A9B8CC;}
.form-note{font-size:12.5px;color:var(--t-3);margin-top:12px;line-height:1.7;}
.form-alert{
  display:none;margin-bottom:16px;padding:12px 14px;
  border-radius:var(--r-sm);font-size:14px;
  background:rgba(18,185,129,.1);color:#0B8C63;
  border:1px solid rgba(18,185,129,.28);
}
.form-alert.is-show{display:block;}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:4fr 8fr;gap:36px;align-items:start;}
.faq-intro h2{font-size:28px;margin-bottom:12px;}
.faq-intro p{font-size:15.5px;margin-bottom:18px;}
.faq-list{
  background:var(--bg-card);
  border:1px solid var(--b-1);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  overflow:hidden;
}
.faq-item{border-bottom:1px solid var(--b-1);}
.faq-item:last-child{border-bottom:0;}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;
  font-size:17px;font-weight:600;color:var(--t-1);
  position:relative;
  transition:background-color .18s ease,color .18s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";flex:0 0 auto;
  width:26px;height:26px;border-radius:8px;
  background:var(--bg-panel);color:var(--c-primary-700);
  display:flex;align-items:center;justify-content:center;
  font-size:16px;font-weight:600;line-height:1;
  transition:transform .22s ease,background-color .22s ease,color .22s ease;
}
.faq-item summary:hover{background:#F8FBFF;}
.faq-item[open] summary{color:var(--c-primary-700);}
.faq-item[open] summary::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;
  border-radius:0 3px 3px 0;background:var(--c-primary);
}
.faq-item[open] summary::after{content:"–";background:var(--c-primary);color:#fff;transform:rotate(180deg);}
.faq-body{padding:0 24px 22px 24px;font-size:15.5px;color:var(--t-2);animation:fadeUp .22s ease;}
@keyframes fadeUp{from{opacity:0;transform:translateY(-4px);}to{opacity:1;transform:translateY(0);}}

/* ---------- CTA ---------- */
.cta-card{
  position:relative;overflow:hidden;
  border-radius:20px;
  background:linear-gradient(120deg,#EAF3FF 0%,#F7FBFF 100%);
  border:1px solid #D5E6FB;
  padding:40px;
  display:grid;grid-template-columns:7fr 5fr;gap:32px;align-items:center;
}
.cta-card::after{
  content:"";position:absolute;right:-80px;bottom:-100px;
  width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(11,114,231,.12),rgba(11,114,231,0) 68%);
}
.cta-card h2{font-size:28px;margin-bottom:12px;}
.cta-card p{font-size:15.5px;color:var(--t-2);}
.cta-points{margin-top:18px;display:grid;gap:10px;}
.cta-points li{position:relative;padding-left:26px;font-size:15px;color:var(--t-2);}
.cta-points li::before{
  content:"✓";position:absolute;left:0;top:0;
  width:18px;height:18px;border-radius:50%;margin-top:6px;
  background:var(--c-primary);color:#fff;
  font-size:11px;display:flex;align-items:center;justify-content:center;
}
.cta-actions{display:flex;flex-direction:column;gap:12px;position:relative;z-index:2;}

/* ---------- 页脚 ---------- */
.site-footer{padding:72px 0 40px;background:var(--bg-page);}
.footer-card{
  background:var(--bg-panel);
  border:1px solid var(--b-1);
  border-radius:20px;
  padding:40px 36px 26px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px;}
.footer-brand p{font-size:14.5px;color:var(--t-2);margin-top:16px;max-width:340px;}
.footer-col h4{font-size:15px;margin-bottom:14px;color:var(--t-1);}
.footer-col ul{display:grid;gap:10px;}
.footer-col li{font-size:14.5px;color:var(--t-2);}
.footer-col a{color:var(--t-2);}
.footer-col a:hover{color:var(--c-primary);}
.fnote{color:var(--t-3);font-size:13.5px;}
.footer-bottom{
  margin-top:32px;padding-top:20px;
  border-top:1px solid var(--b-2);
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;
  font-size:13.5px;color:var(--t-3);
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container{padding:0 28px;}
}
@media (max-width:1023px){
  .container{padding:0 24px;}
  .section{padding:64px 0;}
  .nav-wrap{height:auto;flex-wrap:wrap;row-gap:10px;padding-top:12px;padding-bottom:12px;}
  .nav-panel{
    order:3;width:100%;flex:1 1 100%;
    overflow-x:auto;overflow-y:hidden;
    scroll-snap-type:x proximity;
    -ms-overflow-style:none;scrollbar-width:none;
    border-radius:14px;
  }
  .nav-panel::-webkit-scrollbar{display:none;}
  .nav-chip{flex:0 0 auto;scroll-snap-align:start;min-width:150px;}
  .nav-toggle{display:block;margin-left:auto;}
  .nav-right .btn{display:none;}
  body.nav-open .nav-panel{
    position:fixed;inset:0;z-index:92;
    display:grid;grid-template-columns:1fr 1fr;gap:12px;
    align-content:start;
    background:#0F1B2D;
    padding:88px 20px 28px;
    border-radius:0;
    overflow-y:auto;
    animation:drawerUp .24s ease;
  }
  @keyframes drawerUp{from{opacity:0;transform:translateY(14px);}to{opacity:1;transform:translateY(0);}}
  body.nav-open{overflow:hidden;}
  body.nav-open .nav-chip{
    background:rgba(255,255,255,.06);
    border:1px solid rgba(255,255,255,.22);
    border-radius:12px;
    padding:14px 12px;
    min-width:0;
    transform:none;
  }
  body.nav-open .nav-chip b{color:#fff;}
  body.nav-open .nav-chip i{color:rgba(255,255,255,.62);}
  body.nav-open .nav-chip .chip-ico{background:rgba(255,255,255,.12);color:#fff;border-color:transparent;}
  body.nav-open .nav-chip.is-active{
    border-color:var(--c-primary);
    background:rgba(11,114,231,.16);
  }
  body.nav-open .nav-chip.is-active b{color:#8CBDF8;}
  .stats-strip{grid-template-columns:repeat(2,1fr);margin-top:-28px;}
  .prepare-grid{grid-template-columns:1fr;gap:22px;}
  .faq-grid{grid-template-columns:1fr;gap:22px;}
  .cta-card{grid-template-columns:1fr;padding:32px;}
  .banner-inner{padding:44px 0 34px;}
  .banner-inner h1{font-size:32px;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .section{padding:48px 0;}
  .section-head h2{font-size:24px;}
  .page-banner{min-height:240px;}
  .banner-inner h1{font-size:26px;line-height:1.34;}
  .banner-inner .banner-sub{font-size:15.5px;}
  .banner-tags .tag{font-size:12px;height:26px;padding:0 12px;}
  .stats-strip{grid-template-columns:1fr 1fr;gap:12px;}
  .stat-cell{padding:18px 16px;}
  .stat-cell .num{font-size:23px;}
  .timeline{padding-left:52px;}
  .timeline::before{left:15px;}
  .tl-dot{left:-52px;width:32px;height:32px;border-radius:10px;font-size:13px;top:18px;}
  .tl-info{left:-20px;top:24px;}
  .tl-card{padding:20px 18px;}
  .tl-head h3{font-size:18px;}
  .tl-figure img{height:170px;}
  .panel-card,.signup-card{padding:20px;}
  .signup-card h3{font-size:20px;}
  .cta-card{padding:24px 20px;}
  .cta-card h2{font-size:22px;}
  .footer-grid{grid-template-columns:1fr;gap:24px;}
  .footer-card{padding:28px 20px 20px;}
  .footer-bottom{flex-direction:column;}
}
@media (max-width:575px){
  .brand-text b{font-size:17px;}
  .stats-strip{grid-template-columns:1fr;}
  .timeline{padding-left:44px;}
  .timeline::before{left:13px;}
  .tl-dot{left:-44px;width:28px;height:28px;font-size:12px;}
  .tl-info{display:none;}
  .banner-tags{gap:8px;}
}

/* roulang page: category3 */
:root{
  --c-primary:#0B72E7;
  --c-primary-700:#0956B3;
  --c-primary-100:#E8F1FE;
  --c-accent:#FF7A2F;
  --c-ok:#12B981;
  --c-warn:#F5A524;
  --bg-page:#F6F9FE;
  --bg-card:#FFFFFF;
  --bg-panel:#EEF4FD;
  --t-1:#101C33;
  --t-2:#41536F;
  --t-3:#8496B0;
  --b-1:#E4ECF7;
  --b-2:#CBD9EC;
  --sh-1:0 1px 2px rgba(16,28,51,.04), 0 6px 18px rgba(16,28,51,.06);
  --sh-2:0 10px 28px rgba(11,114,231,.14);
  --r-lg:18px;
  --r-md:14px;
  --r-sm:12px;
  --r-pill:999px;
  --sp-section:88px;
  --font: "PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--t-2);
  background:var(--bg-page);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--c-primary);text-decoration:none;}
a:hover{color:var(--c-primary-700);}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;border:none;background:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;color:var(--t-1);font-weight:700;line-height:1.35;}
p{margin:0;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 32px;
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 24px;
  border-radius:var(--r-sm);
  font-size:15px;
  font-weight:600;
  letter-spacing:.2px;
  transition:background-color .2s ease, color .2s ease, box-shadow .2s ease, transform .18s ease, border-color .2s ease;
  white-space:nowrap;
}
.btn-primary{
  background:var(--c-primary);
  color:#fff;
  box-shadow:0 6px 16px rgba(11,114,231,.22);
}
.btn-primary:hover{background:var(--c-primary-700);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0) scale(.985);}
.btn-ghost{
  background:#fff;
  color:var(--c-primary);
  border:1px solid var(--b-2);
}
.btn-ghost:hover{background:var(--c-primary-100);color:var(--c-primary-700);border-color:var(--c-primary);}
.btn-ghost:active{transform:scale(.985);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:10px;}
.btn-lg{height:52px;padding:0 30px;font-size:16px;}
.btn-text{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--c-primary);
  font-weight:600;
  font-size:15px;
  border-bottom:2px solid transparent;
  transition:.2s;
}
.btn-text:hover{color:var(--c-primary-700);border-bottom-color:var(--c-primary-700);}
.btn-text::after{content:"→";font-weight:400;transition:transform .2s;}
.btn-text:hover::after{transform:translateX(3px);}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--b-1);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-1);}
.nav-wrap{
  display:flex;
  align-items:center;
  gap:20px;
  height:72px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.brand-mark{
  width:32px;height:32px;
  display:flex;align-items:center;justify-content:center;
  background:var(--c-primary);
  color:#fff;
  font-size:16px;
  font-weight:700;
  border-radius:10px;
  box-shadow:0 4px 12px rgba(11,114,231,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.1;}
.brand-text b{font-size:18px;font-weight:700;color:var(--t-1);letter-spacing:.4px;}
.brand-text i{font-style:normal;font-size:11px;font-weight:500;color:var(--t-3);letter-spacing:2px;}

.nav-panel{
  display:flex;
  align-items:center;
  gap:4px;
  flex:1;
  min-width:0;
  background:var(--bg-panel);
  border-radius:16px;
  padding:6px;
  overflow-x:auto;
  scrollbar-width:none;
}
.nav-panel::-webkit-scrollbar{display:none;}
.nav-chip{
  display:flex;
  align-items:center;
  gap:8px;
  padding:7px 12px;
  border-radius:10px;
  color:var(--t-2);
  transition:background-color .2s ease, color .2s ease, box-shadow .2s ease;
  flex-shrink:0;
}
.nav-chip b{display:block;font-size:14px;font-weight:600;color:inherit;line-height:1.3;white-space:nowrap;}
.nav-chip i{display:block;font-style:normal;font-size:11px;color:var(--t-3);line-height:1.3;white-space:nowrap;}
.nav-chip .chip-ico{
  width:20px;height:20px;
  display:flex;align-items:center;justify-content:center;
  border-radius:6px;
  background:rgba(11,114,231,.12);
  color:var(--c-primary);
  font-size:11px;
  font-weight:700;
  flex-shrink:0;
}
.nav-chip:hover{background:#fff;box-shadow:var(--sh-1);color:var(--t-1);}
.nav-chip.is-active{background:var(--c-primary);color:#fff;box-shadow:0 6px 16px rgba(11,114,231,.24);}
.nav-chip.is-active i{color:rgba(255,255,255,.78);}
.nav-chip.is-active .chip-ico{background:rgba(255,255,255,.22);color:#fff;}

.nav-right{display:flex;align-items:center;gap:12px;margin-left:auto;flex-shrink:0;}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:12px;
  background:var(--bg-panel);
  position:relative;
}
.nav-toggle span,
.nav-toggle::before,
.nav-toggle::after{
  content:"";position:absolute;left:11px;right:11px;height:2px;background:var(--t-1);border-radius:2px;transition:.24s;
}
.nav-toggle span{top:20px;}
.nav-toggle::before{top:14px;}
.nav-toggle::after{top:26px;}
.nav-toggle.is-open span{opacity:0;}
.nav-toggle.is-open::before{transform:translateY(6px) rotate(45deg);}
.nav-toggle.is-open::after{transform:translateY(-6px) rotate(-45deg);}

/* ============ 抽屉导航 ============ */
.drawer{
  position:fixed;
  inset:72px 0 0 0;
  z-index:55;
  background:#0F1B2D;
  padding:24px 20px 40px;
  overflow-y:auto;
  opacity:0;
  visibility:hidden;
  transform:translateY(14px);
  transition:opacity .24s ease, transform .24s ease, visibility .24s;
}
.drawer.is-open{opacity:1;visibility:visible;transform:translateY(0);}
.drawer-title{color:rgba(255,255,255,.55);font-size:12px;letter-spacing:2px;margin-bottom:14px;}
.drawer-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;}
.drawer-card{
  display:block;
  padding:14px 14px 16px;
  border-radius:14px;
  border:1px solid rgba(255,255,255,.16);
  background:rgba(255,255,255,.04);
  color:#fff;
  transition:.2s;
}
.drawer-card b{display:block;font-size:15px;font-weight:600;color:#fff;margin-bottom:4px;}
.drawer-card i{font-style:normal;font-size:12px;color:rgba(255,255,255,.6);line-height:1.5;}
.drawer-card:hover{background:rgba(255,255,255,.09);}
.drawer-card.is-active{border-color:var(--c-primary);color:#9CC7FA;}
.drawer-card.is-active b{color:#9CC7FA;}

/* ============ 页面通用 ============ */
main{display:block;}
.section{padding:var(--sp-section) 0;}
.section-tight{padding:56px 0;}
.section-head{max-width:760px;margin-bottom:32px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  height:26px;padding:0 12px;
  background:var(--c-primary-100);
  color:var(--c-primary);
  border-radius:var(--r-pill);
  font-size:13px;font-weight:500;letter-spacing:.5px;
  margin-bottom:16px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-primary);}
.section-title{font-size:30px;line-height:1.35;}
.section-sub{margin-top:14px;font-size:16px;color:var(--t-2);line-height:1.85;}

/* ============ 面包屑 ============ */
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--t-3);
  padding-top:24px;
}
.crumb a{color:var(--t-3);}
.crumb a:hover{color:var(--c-primary);}
.crumb span.sep{color:var(--b-2);}
.crumb .cur{color:var(--t-1);font-weight:500;}

/* ============ 分类页 Hero ============ */
.page-hero{padding:20px 0 0;}
.hero-inner{
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:48px;
  align-items:center;
  padding:44px 0 64px;
}
.hero-copy h1{
  font-size:42px;
  line-height:1.25;
  letter-spacing:-.5px;
  margin-bottom:18px;
}
.hero-copy h1 em{
  font-style:normal;
  color:var(--c-primary);
}
.hero-lead{
  font-size:17px;
  line-height:1.9;
  color:var(--t-2);
  max-width:560px;
  margin-bottom:26px;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px;}
.tag{
  display:inline-flex;align-items:center;
  height:26px;padding:0 12px;
  border-radius:var(--r-pill);
  background:var(--bg-panel);
  color:var(--t-2);
  font-size:13px;font-weight:500;
}
.tag.is-primary{background:var(--c-primary-100);color:var(--c-primary);}
.tag.is-accent{background:rgba(255,122,47,.12);color:#C8541A;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center;}
.hero-media{
  position:relative;
  border-radius:24px;
  overflow:hidden;
  box-shadow:var(--sh-2);
  aspect-ratio:5/4;
  background:var(--bg-panel);
}
.hero-media img{width:100%;height:100%;object-fit:cover;}
.hero-float{
  position:absolute;
  left:18px;bottom:18px;
  right:18px;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(6px);
  border-radius:14px;
  padding:14px 16px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  box-shadow:var(--sh-1);
}
.hero-float .hf-label{font-size:12px;color:var(--t-3);letter-spacing:.5px;}
.hero-float .hf-value{font-size:20px;font-weight:700;color:var(--c-primary);font-variant-numeric:tabular-nums;}
.hero-float .hf-dot{
  width:10px;height:10px;border-radius:50%;background:var(--c-ok);
  box-shadow:0 0 0 4px rgba(18,185,129,.16);
  flex-shrink:0;
}

/* ============ 数据对比条 ============ */
.meter-section{padding:0 0 88px;}
.meter-card{
  background:#fff;
  border:1px solid var(--b-1);
  border-radius:20px;
  box-shadow:var(--sh-1);
  padding:36px 36px 30px;
}
.meter-top{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  justify-content:space-between;
  gap:16px;
  padding-bottom:24px;
  border-bottom:1px solid var(--b-1);
  margin-bottom:28px;
}
.meter-top h2{font-size:24px;}
.meter-top p{font-size:14px;color:var(--t-3);margin-top:6px;}
.meter-list{display:grid;grid-template-columns:repeat(2,1fr);gap:26px 44px;}
.meter-head{
  display:flex;align-items:baseline;justify-content:space-between;gap:12px;
  margin-bottom:10px;
}
.meter-head span{font-size:15px;font-weight:600;color:var(--t-1);}
.meter-head b{
  font-size:17px;font-weight:700;color:var(--c-accent);
  font-variant-numeric:tabular-nums;
}
.meter-head b small{font-size:12px;font-weight:500;color:var(--t-3);margin-left:4px;}
.meter-track{
  height:10px;
  border-radius:var(--r-pill);
  background:var(--bg-panel);
  overflow:hidden;
}
.meter-fill{
  display:block;height:100%;border-radius:var(--r-pill);
  background:linear-gradient(90deg,#3E93F0,var(--c-primary));
  animation:grow 1.1s cubic-bezier(.2,.7,.3,1) both;
}
@keyframes grow{from{width:0;}}
.fill-92{width:92%;}
.fill-98{width:98%;}
.fill-96{width:96%;}
.fill-88{width:88%;}

/* ============ 交错图文 ============ */
.zz-list{display:flex;flex-direction:column;gap:72px;}
.zz-row{
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:52px;
  align-items:center;
}
.zz-row.reverse{grid-template-columns:7fr 5fr;}
.zz-row.reverse .zz-media{order:2;}
.zz-row.reverse .zz-copy{order:1;}
.zz-media{
  position:relative;
  border-radius:18px;
  overflow:hidden;
  box-shadow:var(--sh-1);
  aspect-ratio:4/3;
  background:var(--bg-panel);
}
.zz-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.zz-media:hover img{transform:scale(1.03);}
.zz-badge{
  position:absolute;left:14px;top:14px;
  height:26px;padding:0 12px;
  display:inline-flex;align-items:center;
  background:rgba(15,27,45,.72);
  color:#fff;font-size:12px;border-radius:var(--r-pill);
  backdrop-filter:blur(4px);
}
.zz-copy .zz-num{
  display:block;
  font-size:56px;
  font-weight:700;
  line-height:1;
  color:transparent;
  -webkit-text-stroke:1.5px var(--c-primary);
  letter-spacing:2px;
  margin-bottom:14px;
  font-variant-numeric:tabular-nums;
}
.zz-copy h3{font-size:24px;margin-bottom:14px;}
.zz-copy p{font-size:16px;color:var(--t-2);margin-bottom:18px;max-width:560px;}
.zz-points{display:flex;flex-direction:column;gap:10px;margin-bottom:20px;}
.zz-points li{
  position:relative;
  padding-left:26px;
  font-size:15px;
  color:var(--t-2);
}
.zz-points li::before{
  content:"";
  position:absolute;left:0;top:11px;
  width:14px;height:8px;
  border-left:2px solid var(--c-primary);
  border-bottom:2px solid var(--c-primary);
  transform:rotate(-45deg);
  border-radius:1px;
}

/* ============ 功能卡片网格 ============ */
.feature-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.feature-card{
  background:#fff;
  border:1px solid var(--b-1);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  padding:26px;
  transition:transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--b-2);}
.feature-ico{
  width:44px;height:44px;
  display:flex;align-items:center;justify-content:center;
  border-radius:12px;
  background:var(--c-primary-100);
  color:var(--c-primary);
  font-size:18px;font-weight:700;
  margin-bottom:16px;
}
.feature-card h3{font-size:18px;margin-bottom:10px;}
.feature-card p{font-size:14.5px;color:var(--t-2);line-height:1.8;margin-bottom:14px;}
.feature-meta{
  display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--t-3);
  border-top:1px solid var(--b-1);
  padding-top:14px;
}
.feature-meta b{color:var(--c-primary);font-variant-numeric:tabular-nums;font-size:15px;}

/* ============ FAQ ============ */
.faq-wrap{display:grid;grid-template-columns:4fr 8fr;gap:48px;align-items:start;}
.faq-side h2{font-size:28px;margin-bottom:16px;}
.faq-side p{font-size:15px;color:var(--t-2);margin-bottom:20px;}
.faq-list{
  background:#fff;
  border:1px solid var(--b-1);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  overflow:hidden;
}
.faq-item + .faq-item{border-top:1px solid var(--b-1);}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:20px 26px;
  font-size:17px;
  font-weight:600;
  color:var(--t-1);
  position:relative;
  transition:background-color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";
  font-size:20px;
  font-weight:400;
  color:var(--c-primary);
  line-height:1;
  transition:transform .22s ease;
  flex-shrink:0;
}
.faq-item[open] summary::after{content:"−";}
.faq-item summary::before{
  content:"";
  position:absolute;
  left:0;top:16px;bottom:16px;
  width:3px;
  background:var(--c-primary);
  border-radius:0 3px 3px 0;
  opacity:0;
  transition:opacity .22s ease;
}
.faq-item[open] summary::before{opacity:1;}
.faq-item summary:hover{background:var(--bg-panel);}
.faq-body{
  padding:0 26px 22px 26px;
  font-size:15.5px;
  line-height:1.85;
  color:var(--t-2);
  animation:fadeIn .22s ease;
}
@keyframes fadeIn{from{opacity:0;transform:translateY(-4px);}to{opacity:1;transform:none;}}

/* ============ CTA ============ */
.cta-band{
  background:linear-gradient(180deg,rgba(11,114,231,.06),rgba(11,114,231,.03));
  border:1px solid rgba(11,114,231,.18);
  border-radius:20px;
  padding:40px;
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:44px;
  align-items:center;
}
.cta-band h2{font-size:28px;margin-bottom:16px;}
.cta-points{display:flex;flex-direction:column;gap:12px;margin-bottom:20px;}
.cta-points li{
  position:relative;
  padding-left:28px;
  font-size:15.5px;
  color:var(--t-2);
}
.cta-points li::before{
  content:"";
  position:absolute;left:0;top:10px;
  width:16px;height:9px;
  border-left:2px solid var(--c-primary);
  border-bottom:2px solid var(--c-primary);
  transform:rotate(-45deg);
}
.cta-note{font-size:12.5px;color:var(--t-3);}
.cta-form{
  background:#fff;
  border:1px solid var(--b-1);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  padding:26px;
}
.form-row{margin-bottom:16px;}
.form-row label{display:block;font-size:14px;color:var(--t-2);margin-bottom:8px;font-weight:500;}
.form-row input,
.form-row select{
  width:100%;
  height:48px;
  padding:0 14px;
  border:1px solid var(--b-2);
  border-radius:var(--r-sm);
  background:#fff;
  color:var(--t-1);
  transition:border-color .2s ease, box-shadow .2s ease;
  appearance:none;
}
.form-row select{
  background-image:linear-gradient(45deg,transparent 50%,var(--t-3) 50%),linear-gradient(135deg,var(--t-3) 50%,transparent 50%);
  background-position:calc(100% - 20px) 21px,calc(100% - 14px) 21px;
  background-size:6px 6px,6px 6px;
  background-repeat:no-repeat;
}
.form-row input:focus,
.form-row select:focus{
  outline:none;
  border-color:var(--c-primary);
  box-shadow:0 0 0 3px rgba(11,114,231,.14);
}
.form-row input::placeholder{color:var(--t-3);}
.form-submit{width:100%;margin-top:4px;}
.form-privacy{font-size:12px;color:var(--t-3);margin-top:12px;line-height:1.7;text-align:center;}

/* ============ 页脚 ============ */
.site-footer{padding:0 0 48px;}
.footer-card{
  background:var(--bg-panel);
  border:1px solid var(--b-1);
  border-radius:24px;
  padding:48px 40px 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:38px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:14px;line-height:1.9;color:var(--t-2);max-width:340px;}
.footer-col h4{font-size:15px;margin-bottom:16px;color:var(--t-1);}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col li{font-size:14px;color:var(--t-2);line-height:1.7;}
.footer-col a{color:var(--t-2);transition:color .2s ease;}
.footer-col a:hover{color:var(--c-primary);}
.fnote{font-size:12.5px;color:var(--t-3);}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  justify-content:space-between;
  border-top:1px solid var(--b-2);
  padding:20px 0 24px;
  font-size:13px;
  color:var(--t-3);
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .container{padding:0 28px;}
  .nav-chip i{display:none;}
  .nav-chip{padding:8px 12px;}
}
@media (max-width:1023px){
  :root{--sp-section:64px;}
  .container{padding:0 24px;}
  .hero-inner{grid-template-columns:1fr;gap:32px;padding:32px 0 48px;}
  .hero-copy h1{font-size:34px;}
  .hero-media{aspect-ratio:16/10;}
  .nav-panel{gap:2px;}
  .nav-chip{padding:8px 10px;}
  .nav-chip b{font-size:13px;}
  .nav-right .btn{display:none;}
  .nav-toggle{display:block;}
  .zz-row,.zz-row.reverse{grid-template-columns:1fr;gap:28px;}
  .zz-row.reverse .zz-media{order:1;}
  .zz-row.reverse .zz-copy{order:2;}
  .zz-list{gap:56px;}
  .feature-grid{grid-template-columns:repeat(2,1fr);}
  .meter-list{grid-template-columns:1fr;gap:22px;}
  .faq-wrap{grid-template-columns:1fr;gap:28px;}
  .cta-band{grid-template-columns:1fr;gap:28px;padding:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .section-title{font-size:26px;}
}
@media (max-width:767px){
  body{font-size:15.5px;line-height:1.8;}
  .container{padding:0 16px;}
  .nav-wrap{height:64px;}
  .drawer{inset:64px 0 0 0;}
  .brand-text b{font-size:17px;}
  .hero-copy h1{font-size:28px;}
  .hero-lead{font-size:15.5px;}
  .page-hero .crumb{padding-top:18px;}
  .hero-inner{padding:24px 0 40px;}
  .hero-media{aspect-ratio:4/3;}
  .hero-float{padding:12px 14px;}
  .hero-float .hf-value{font-size:17px;}
  .meter-card{padding:24px 20px 22px;border-radius:18px;}
  .meter-top h2{font-size:21px;}
  .zz-copy .zz-num{font-size:44px;}
  .zz-copy h3{font-size:21px;}
  .feature-grid{grid-template-columns:1fr;}
  .feature-card{padding:20px;}
  .faq-item summary{padding:16px 18px;font-size:16px;}
  .faq-body{padding:0 18px 18px 18px;}
  .cta-band{padding:24px 18px;border-radius:18px;}
  .cta-band h2{font-size:22px;}
  .cta-form{padding:20px;}
  .footer-card{padding:32px 20px 0;border-radius:20px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding-bottom:26px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .drawer-grid{grid-template-columns:1fr 1fr;gap:10px;}
}
@media (max-width:520px){
  .drawer-grid{grid-template-columns:1fr;}
  .hero-copy h1{font-size:26px;}
  .section-title{font-size:22px;}
  .hero-actions .btn{width:100%;}
  .zz-copy .zz-num{font-size:38px;}
}

/* roulang page: category4 */
:root{
  --c-primary:#0B72E7;
  --c-primary-700:#0956B3;
  --c-primary-100:#E8F1FE;
  --c-accent:#FF7A2F;
  --c-ok:#12B981;
  --c-warn:#F5A524;
  --bg-page:#F6F9FE;
  --bg-card:#FFFFFF;
  --bg-panel:#EEF4FD;
  --t-1:#101C33;
  --t-2:#41536F;
  --t-3:#8496B0;
  --b-1:#E4ECF7;
  --b-2:#CBD9EC;
  --sh-1:0 1px 2px rgba(16,28,51,.04), 0 6px 18px rgba(16,28,51,.06);
  --sh-2:0 10px 28px rgba(11,114,231,.14);
  --r-lg:18px;
  --r-md:14px;
  --r-sm:12px;
  --r-pill:999px;
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--t-2);
  background:var(--bg-page);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--c-primary-700)}
img{max-width:100%;display:block}
button,input,textarea,select{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
@media (max-width:1279px){.container{padding:0 28px}}
@media (max-width:1023px){.container{padding:0 24px}}
@media (max-width:767px){.container{padding:0 16px}}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;white-space:nowrap;
  transition:background .2s ease,color .2s ease,box-shadow .2s ease,transform .16s ease,border-color .2s ease;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 4px 14px rgba(11,114,231,.24)}
.btn-primary:hover{background:var(--c-primary-700);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0) scale(.985)}
.btn-ghost{background:#fff;color:var(--c-primary);border-color:var(--b-2)}
.btn-ghost:hover{background:var(--c-primary-100);color:var(--c-primary-700);border-color:#B7D4F7}
.btn-light{background:rgba(255,255,255,.14);color:#fff;border-color:rgba(255,255,255,.5)}
.btn-light:hover{background:#fff;color:var(--c-primary-700);border-color:#fff}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:10px}
.btn-lg{height:52px;padding:0 28px;font-size:16px}
.btn[disabled],.btn.is-disabled{background:#DCE5F2;color:#fff;box-shadow:none;pointer-events:none;opacity:.6}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:90;
  background:#fff;border-bottom:1px solid var(--b-1);
  transition:box-shadow .24s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-1)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--t-1);flex:0 0 auto}
.brand:hover{color:var(--t-1)}
.brand-mark{
  width:32px;height:32px;border-radius:10px;flex:0 0 32px;
  display:grid;place-items:center;
  background:var(--c-primary-100);color:var(--c-primary-700);
  font-size:16px;font-weight:700;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text b{font-size:18px;font-weight:700;letter-spacing:.2px}
.brand-text i{font-style:normal;font-size:11px;font-weight:500;color:var(--t-3);letter-spacing:1px}
.nav-panel{
  display:flex;align-items:center;gap:4px;
  background:var(--bg-panel);border-radius:16px;padding:6px;
  max-width:100%;
}
.nav-chip{
  display:flex;align-items:center;gap:9px;
  padding:7px 12px;border-radius:10px;
  background:transparent;color:var(--t-2);
  transition:background .2s ease,box-shadow .2s ease,color .2s ease;
}
.nav-chip .chip-ico{
  width:26px;height:26px;flex:0 0 26px;border-radius:8px;
  display:grid;place-items:center;
  background:#fff;color:var(--c-primary);
  font-size:12px;font-weight:700;
  box-shadow:inset 0 0 0 1px var(--b-1);
}
.nav-chip b{display:block;font-size:14px;font-weight:500;color:var(--t-1);line-height:1.35}
.nav-chip i{display:block;font-style:normal;font-size:11px;color:var(--t-3);line-height:1.3}
.nav-chip:hover{background:#fff;box-shadow:var(--sh-1)}
.nav-chip.is-active{background:var(--c-primary);box-shadow:0 6px 16px rgba(11,114,231,.22)}
.nav-chip.is-active b,.nav-chip.is-active i{color:#fff}
.nav-chip.is-active .chip-ico{background:rgba(255,255,255,.2);color:#fff;box-shadow:none}
.nav-right{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--b-2);background:#fff;
  position:relative;flex:0 0 44px;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:50%;width:18px;height:2px;border-radius:2px;
  background:var(--t-1);transform:translateX(-50%);transition:.22s ease;
}
.nav-toggle span{top:50%;margin-top:-1px}
.nav-toggle span::before{top:-6px;left:0;transform:none}
.nav-toggle span::after{top:6px;left:0;transform:none}

/* ============ 面包屑 ============ */
.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--t-3);
  padding:22px 0 16px;
}
.crumbs a{color:var(--t-3)}
.crumbs a:hover{color:var(--c-primary)}
.crumbs .sep{color:var(--b-2)}
.crumbs .now{color:var(--t-1);font-weight:500}

/* ============ 主视觉横幅 ============ */
.page-hero{padding-bottom:8px}
.hero-banner{
  position:relative;border-radius:20px;overflow:hidden;
  min-height:340px;display:flex;align-items:flex-end;
  box-shadow:var(--sh-1);background:var(--bg-panel);
}
.hero-banner img.hero-media{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero-shade{
  position:absolute;inset:0;
  background:linear-gradient(92deg,rgba(9,26,52,.82) 0%,rgba(9,26,52,.5) 55%,rgba(9,26,52,.16) 100%);
}
.hero-copy{position:relative;padding:42px 44px;max-width:780px;color:#fff}
.hero-copy h1{
  font-size:34px;line-height:1.34;font-weight:700;color:#fff;
  letter-spacing:.2px;margin:14px 0 12px;
}
.hero-copy p{font-size:16px;line-height:1.85;color:rgba(255,255,255,.88);max-width:640px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
.badge{
  display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 12px;
  border-radius:var(--r-pill);font-size:12px;font-weight:500;line-height:1;
}
.badge-soft{background:var(--c-primary-100);color:var(--c-primary-700)}
.badge-accent{background:#FFF1E8;color:#C9551A}
.badge-muted{background:var(--bg-panel);color:var(--t-3)}
.badge-glass{background:rgba(255,255,255,.18);color:#fff;border:1px solid rgba(255,255,255,.32)}

/* ============ 板块 ============ */
.section{padding:76px 0}
.section.tight{padding:56px 0}
.section-head{max-width:820px;margin-bottom:34px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--c-primary);
  letter-spacing:1px;margin-bottom:12px;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--c-primary)}
.section-title{font-size:30px;line-height:1.4;font-weight:700;color:var(--t-1);letter-spacing:.2px}
.section-sub{margin-top:14px;font-size:16px;line-height:1.85;color:var(--t-2)}
.section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap}
.link-more{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:600;color:var(--c-primary);
  border-bottom:3px solid rgba(11,114,231,.22);
  padding-bottom:2px;transition:.2s ease;
}
.link-more:hover{color:var(--c-primary-700);border-bottom-color:var(--c-primary-700)}
.link-more span{transition:transform .2s ease}
.link-more:hover span{transform:translateX(3px)}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--c-primary);
}
.link-arrow span{transition:transform .2s ease}
.link-arrow:hover{color:var(--c-primary-700)}
.link-arrow:hover span{transform:translateX(3px)}

/* ============ 速查卡 2×3 ============ */
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.q-card{
  display:flex;flex-direction:column;gap:14px;
  background:var(--bg-card);border:1px solid var(--b-1);border-radius:var(--r-lg);
  padding:26px;box-shadow:var(--sh-1);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.q-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#CFE2FB}
.q-ico{
  width:48px;height:48px;border-radius:14px;
  display:grid;place-items:center;flex:0 0 48px;
  background:var(--c-primary-100);color:var(--c-primary-700);
  font-size:18px;font-weight:700;
}
.q-card h3{font-size:19px;line-height:1.5;font-weight:700;color:var(--t-1)}
.q-card p{font-size:15px;line-height:1.8;color:var(--t-2)}
.q-card .q-foot{margin-top:auto;padding-top:6px}

/* ============ 响应数据条 ============ */
.stat-band{
  background:var(--bg-card);border:1px solid var(--b-1);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);padding:28px;
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;
}
.stat-item{position:relative;padding-left:18px}
.stat-item::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:3px;background:var(--c-primary-100)}
.stat-item.is-key::before{background:var(--c-accent)}
.stat-num{
  font-size:28px;line-height:1.25;font-weight:700;color:var(--c-primary);
  font-variant-numeric:tabular-nums;letter-spacing:.4px;
}
.stat-item.is-key .stat-num{color:var(--c-accent)}
.stat-label{margin-top:4px;font-size:14px;color:var(--t-2)}
.stat-note{font-size:13px;color:var(--t-3);margin-top:2px}

/* ============ FAQ ============ */
.faq-layout{display:grid;grid-template-columns:4fr 8fr;gap:44px;align-items:start}
.faq-side h2{font-size:28px;line-height:1.4;font-weight:700;color:var(--t-1)}
.faq-side p{margin-top:14px;font-size:15.5px;line-height:1.85;color:var(--t-2)}
.faq-side .link-more{margin-top:20px}
.faq-list{
  background:var(--bg-card);border:1px solid var(--b-1);
  border-radius:var(--r-lg);box-shadow:var(--sh-1);overflow:hidden;
}
.faq-item+.faq-item{border-top:1px solid var(--b-1)}
.faq-item summary{
  position:relative;list-style:none;cursor:pointer;
  padding:20px 62px 20px 24px;
  font-size:17px;font-weight:600;color:var(--t-1);
  transition:background .2s ease,color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{background:#F7FAFF;color:var(--c-primary-700)}
.faq-item summary::after{
  content:"+";position:absolute;right:20px;top:50%;transform:translateY(-50%);
  width:26px;height:26px;border-radius:9px;
  display:grid;place-items:center;
  background:var(--c-primary-100);color:var(--c-primary);
  font-size:16px;font-weight:600;line-height:1;
  transition:.22s ease;
}
.faq-item[open] summary{background:#F7FAFF;color:var(--c-primary-700)}
.faq-item[open] summary::after{content:"–";background:var(--c-primary);color:#fff}
.faq-item[open] summary::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;
  border-radius:0 3px 3px 0;background:var(--c-primary);
}
.faq-body{
  padding:0 26px 22px 24px;
  font-size:15.5px;line-height:1.85;color:var(--t-2);
  animation:faqIn .22s ease;
}
@keyframes faqIn{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:none}}
.faq-body ul{margin:10px 0 0;display:grid;gap:8px}
.faq-body li{position:relative;padding-left:18px}
.faq-body li::before{
  content:"";position:absolute;left:2px;top:11px;
  width:6px;height:6px;border-radius:50%;background:var(--c-primary);
}

/* ============ 底部 CTA ============ */
.cta-card{
  border-radius:20px;padding:38px;
  background:linear-gradient(180deg,#EFF6FF 0%,#FFFFFF 100%);
  border:1px solid #D5E6FB;
  display:grid;grid-template-columns:7fr 5fr;gap:40px;align-items:start;
}
.cta-card h2{font-size:28px;line-height:1.4;font-weight:700;color:var(--t-1)}
.cta-card .lead{margin-top:14px;font-size:15.5px;line-height:1.85;color:var(--t-2)}
.cta-points{margin-top:22px;display:grid;gap:12px}
.cta-points li{position:relative;padding-left:30px;font-size:15px;color:var(--t-2);line-height:1.75}
.cta-points li::before{
  content:"";position:absolute;left:0;top:6px;
  width:18px;height:18px;border-radius:50%;
  background:var(--c-primary-100);
  box-shadow:inset 0 0 0 6px rgba(11,114,231,.16);
}
.cta-points li::after{
  content:"";position:absolute;left:6px;top:11px;
  width:6px;height:3px;border-left:2px solid var(--c-primary);
  border-bottom:2px solid var(--c-primary);transform:rotate(-45deg);
}
.cta-disclaimer{margin-top:18px;font-size:13px;line-height:1.7;color:var(--t-3)}
.cta-form{
  background:#fff;border:1px solid var(--b-1);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--sh-1);
}
.cta-form h3{font-size:18px;font-weight:700;color:var(--t-1);margin-bottom:6px}
.cta-form .form-tip{font-size:13px;color:var(--t-3);margin-bottom:16px}
.form-ok{
  display:none;margin-bottom:16px;padding:12px 14px;border-radius:var(--r-sm);
  background:#E7F8F1;border:1px solid #B7EBD6;color:#0B7C58;
  font-size:14px;line-height:1.7;
}
.form-ok.is-show{display:block}
.field{margin-bottom:14px}
.field label{display:block;font-size:14px;color:var(--t-2);margin-bottom:6px}
.field input{
  width:100%;height:48px;padding:0 14px;
  border:1px solid var(--b-2);border-radius:var(--r-sm);
  background:#fff;color:var(--t-1);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field input::placeholder{color:#A9B8CC}
.field input:focus{
  outline:none;border-color:var(--c-primary);
  box-shadow:0 0 0 3px rgba(11,114,231,.14);
}
.field.is-error input{border-color:#E5484D;box-shadow:0 0 0 3px rgba(229,72,77,.12)}
.field .err{display:none;margin-top:6px;font-size:13px;color:#D2353A}
.field.is-error .err{display:block}
.form-note{margin-top:12px;font-size:12px;line-height:1.7;color:var(--t-3)}

/* ============ 页脚 ============ */
.site-footer{padding:24px 0 34px}
.footer-card{
  background:var(--bg-panel);border:1px solid var(--b-1);
  border-radius:20px;padding:40px 40px 24px;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.8;color:var(--t-2);max-width:340px}
.footer-col h4{font-size:15px;font-weight:700;color:var(--t-1);margin-bottom:14px}
.footer-col ul{display:grid;gap:10px}
.footer-col li{font-size:14px;color:var(--t-2)}
.footer-col a{color:var(--t-2)}
.footer-col a:hover{color:var(--c-primary)}
.fnote{color:var(--t-3);font-size:13px;line-height:1.7}
.footer-bottom{
  margin-top:32px;padding-top:18px;border-top:1px solid var(--b-2);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--t-3);
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .hero-copy h1{font-size:32px}
  .faq-layout{gap:32px}
}
@media (max-width:1023px){
  .section{padding:64px 0}
  .section.tight{padding:48px 0}
  .section-title{font-size:26px}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
  .stat-band{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
  .faq-layout{grid-template-columns:1fr;gap:28px}
  .cta-card{grid-template-columns:1fr;gap:28px;padding:30px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px}
  .nav-wrap{flex-wrap:wrap;height:auto;padding-top:12px;padding-bottom:12px;row-gap:10px}
  .nav-panel{
    order:3;width:100%;overflow-x:auto;scroll-snap-type:x mandatory;
    -ms-overflow-style:none;scrollbar-width:none;border-radius:14px;
  }
  .nav-panel::-webkit-scrollbar{display:none}
  .nav-chip{flex:0 0 auto;scroll-snap-align:start}
  .nav-toggle{display:block}
  .nav-panel.is-open{
    position:fixed;left:16px;right:16px;top:88px;
    display:grid;grid-template-columns:1fr 1fr;gap:10px;
    padding:16px;border-radius:18px;background:#0F1B2D;
    box-shadow:0 22px 48px rgba(15,27,45,.4);overflow:visible;
    animation:drawerUp .24s ease;
  }
  .nav-panel.is-open .nav-chip{
    background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.16);
  }
  .nav-panel.is-open .nav-chip b{color:#fff}
  .nav-panel.is-open .nav-chip i{color:rgba(255,255,255,.6)}
  .nav-panel.is-open .nav-chip .chip-ico{
    background:rgba(255,255,255,.12);color:#fff;box-shadow:none;
  }
  .nav-panel.is-open .nav-chip:hover{background:rgba(255,255,255,.12)}
  .nav-panel.is-open .nav-chip.is-active{
    background:rgba(11,114,231,.18);border-color:var(--c-primary);
  }
  .nav-panel.is-open .nav-chip.is-active b{color:#7FB6F6}
  @keyframes drawerUp{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}
}
@media (max-width:767px){
  .section{padding:48px 0}
  .section-title{font-size:23px}
  .hero-banner{min-height:400px;border-radius:16px}
  .hero-copy{padding:28px 22px}
  .hero-copy h1{font-size:26px}
  .hero-copy p{font-size:15px}
  .grid-3{grid-template-columns:1fr}
  .stat-band{grid-template-columns:1fr;padding:22px}
  .q-card{padding:20px}
  .faq-item summary{font-size:16px;padding:18px 54px 18px 18px}
  .faq-body{padding:0 18px 20px}
  .cta-card{padding:22px}
  .footer-card{padding:28px 22px 20px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (max-width:575px){
  .brand-text b{font-size:16px}
  .hero-copy h1{font-size:24px;line-height:1.4}
  .hero-actions .btn{width:100%}
  .btn-lg{height:50px}
}