/* roulang page: index */
:root{
  --brand:#5B3DF5;--brand-hover:#4429D8;--brand-active:#3A22C4;--brand-soft:rgba(91,61,245,.10);
  --teal:#00D2A8;--teal-hover:#00B892;--teal-soft:rgba(0,210,168,.14);
  --orange:#FF7A45;--orange-soft:rgba(255,122,69,.14);
  --bg:#F7F5F0;--card:#FFFFFF;--dark:#101218;
  --text:#16181D;--muted:#6B6F76;--inverse:#F5F3EF;
  --border:#E4E0D8;--line:rgba(16,18,24,.08);
  --ok:#1FBF75;--warn:#E0A400;--err:#E5484D;
  --r-sm:8px;--r-md:12px;--r-lg:20px;--r-xl:28px;--r-pill:999px;
  --sh-1:0 1px 2px rgba(16,18,24,.06);
  --sh-2:0 12px 32px rgba(16,18,24,.08);
  --sh-3:0 18px 48px rgba(91,61,245,.16);
  --sec:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;line-height:1.7;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-hover)}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;line-height:1.28;font-weight:700;letter-spacing:.1px}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:3px solid rgba(91,61,245,.45);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px}
.section{padding:var(--sec) 0}
.section-sm{padding:64px 0}
.section-alt{background:#fff}
.section-dark{background:var(--dark);color:var(--inverse)}
.section-head{max-width:760px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;letter-spacing:.16em;
  color:var(--brand);margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:linear-gradient(90deg,var(--brand),var(--teal));border-radius:2px}
.section-title{font-size:clamp(24px,2.7vw,36px);margin-bottom:14px}
.section-lead{color:var(--muted);font-size:16px;max-width:680px}

/* ===== 按钮 ===== */
.btn{font-weight:600;border-radius:var(--r-md);padding:12px 22px;font-size:15.5px;transition:all .22s ease;border:1px solid transparent}
.btn-brand{background:var(--brand);color:#fff;box-shadow:0 6px 18px rgba(91,61,245,.26)}
.btn-brand:hover{background:var(--brand-hover);color:#fff;transform:translateY(-2px);box-shadow:0 14px 30px rgba(91,61,245,.32)}
.btn-brand:active{background:var(--brand-active);transform:translateY(0)}
.btn-ghost{background:transparent;color:var(--inverse);border-color:rgba(255,255,255,.45)}
.btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.7);transform:translateY(-2px)}
.btn-outline-ink{background:#fff;color:var(--text);border-color:var(--border)}
.btn-outline-ink:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-lg{padding:15px 30px;font-size:16.5px;border-radius:14px}

/* ===== 徽章 / 标签 ===== */
.badge-tag{
  display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:600;line-height:1.5;background:var(--brand-soft);color:var(--brand);
  border:1px solid rgba(91,61,245,.16);
}
.badge-teal{background:var(--teal-soft);color:#019A7C;border-color:rgba(0,210,168,.24)}
.badge-orange{background:var(--orange-soft);color:#D9532A;border-color:rgba(255,122,69,.24)}

/* ===== 导航 ===== */
.site-header{position:fixed;top:0;left:0;right:0;z-index:1050;padding-top:14px;transition:padding .28s ease}
.nav-shell{
  display:flex;align-items:center;gap:16px;padding:10px 14px 10px 20px;border-radius:var(--r-pill);
  background:rgba(16,18,24,.35);border:1px solid rgba(255,255,255,.12);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  box-shadow:0 10px 30px rgba(16,18,24,.20);transition:all .28s ease;
}
.site-header.is-stuck{padding-top:0}
.site-header.is-stuck .nav-shell{
  border-radius:0 0 var(--r-lg) var(--r-lg);background:rgba(16,18,24,.95);
  border-color:rgba(255,255,255,.08);box-shadow:0 12px 34px rgba(16,18,24,.34);
}
.brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-weight:700;flex-shrink:0}
.brand:hover{color:#fff}
.brand-mark{
  width:34px;height:34px;border-radius:11px;display:grid;place-items:center;flex-shrink:0;
  background:linear-gradient(135deg,var(--brand),#8B6BFF);color:#fff;font-size:15px;font-weight:700;
  box-shadow:0 6px 16px rgba(91,61,245,.45);
}
.brand-text{font-size:16px;white-space:nowrap;letter-spacing:.3px}
.nav-links{display:flex;align-items:center;gap:4px;margin:0 auto 0 12px}
.nav-links .nav-link{
  color:rgba(245,243,239,.82);font-size:15px;font-weight:500;padding:9px 15px;border-radius:var(--r-pill);
  white-space:nowrap;transition:all .2s ease;position:relative;
}
.nav-links .nav-link:hover{color:#fff;background:rgba(255,255,255,.10)}
.nav-links .nav-link.active{color:#fff;background:rgba(91,61,245,.85);box-shadow:0 4px 14px rgba(91,61,245,.4)}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.nav-actions .btn{padding:10px 20px;font-size:14.5px;border-radius:var(--r-pill)}
.navbar-toggler{
  border:1px solid rgba(255,255,255,.28);border-radius:10px;padding:8px 11px;background:rgba(255,255,255,.06);
  color:#fff;min-width:44px;min-height:44px;
}
.navbar-toggler:focus{box-shadow:0 0 0 3px rgba(91,61,245,.45)}
.navbar-toggler .fa-bars{color:#fff;font-size:16px}

/* ===== Hero ===== */
.hero{position:relative;overflow:hidden;background:var(--dark);color:var(--inverse);padding:158px 0 100px}
.hero-bg{position:absolute;inset:0;background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;opacity:.45}
.hero-mask{position:absolute;inset:0;background:linear-gradient(175deg,rgba(16,18,24,.94) 0%,rgba(16,18,24,.76) 46%,rgba(16,18,24,.97) 100%)}
.hero-grid-lines{
  position:absolute;inset:0;z-index:1;opacity:.5;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:56px 56px;
  -webkit-mask-image:radial-gradient(ellipse at 30% 30%,#000 10%,transparent 72%);
  mask-image:radial-gradient(ellipse at 30% 30%,#000 10%,transparent 72%);
}
.hero-inner{position:relative;z-index:3}
.hero-kicker{
  display:inline-flex;align-items:center;gap:8px;padding:7px 14px;border-radius:var(--r-pill);
  background:rgba(0,210,168,.14);border:1px solid rgba(0,210,168,.34);color:#5FF2D4;
  font-size:13.5px;font-weight:600;margin-bottom:22px;
}
.hero-kicker i{font-size:12px}
.hero h1{font-size:clamp(30px,4.2vw,50px);line-height:1.2;font-weight:700;margin-bottom:20px;letter-spacing:.2px}
.hero h1 em{font-style:normal;color:#9C86FF}
.hero-sub{font-size:18px;line-height:1.78;color:rgba(245,243,239,.78);max-width:620px;margin-bottom:32px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px}
.hero-tags li{
  display:inline-flex;align-items:center;gap:8px;font-size:13.5px;color:rgba(245,243,239,.72);
  border:1px solid rgba(255,255,255,.14);border-radius:var(--r-pill);padding:6px 14px;background:rgba(255,255,255,.04);
}
.hero-tags li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--teal)}
.hero-panel{
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:var(--r-xl);
  padding:26px;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);box-shadow:0 24px 60px rgba(0,0,0,.32);
}
.hero-panel-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;padding-bottom:16px;border-bottom:1px solid rgba(255,255,255,.12)}
.hero-panel-head h2{font-size:16px;font-weight:600;color:#fff}
.hero-panel-head span{font-size:12.5px;color:rgba(245,243,239,.55)}
.hero-rows{display:grid;gap:12px}
.hero-row{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:14px 16px;border-radius:14px;background:rgba(16,18,24,.42);border:1px solid rgba(255,255,255,.08)}
.hero-row-label{font-size:14.5px;color:rgba(245,243,239,.82)}
.hero-row-value{font-size:14.5px;font-weight:700;color:#fff;font-variant-numeric:tabular-nums;display:inline-flex;align-items:center;gap:7px}
.dot-ok{width:8px;height:8px;border-radius:50%;background:var(--ok);box-shadow:0 0 0 4px rgba(31,191,117,.18)}
.hero-panel-foot{margin-top:18px;font-size:12.5px;color:rgba(245,243,239,.5);line-height:1.7}

/* ===== 痛点区 ===== */
.pain-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin-top:44px}
.pain-card{
  position:relative;background:#fff;border:1px solid var(--border);border-radius:var(--r-lg);
  padding:26px 26px 24px 32px;box-shadow:var(--sh-1);transition:all .26s ease;overflow:hidden;
}
.pain-card::before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:linear-gradient(180deg,var(--brand),var(--teal))}
.pain-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(91,61,245,.3)}
.pain-q{font-size:17px;font-weight:600;margin-bottom:8px;display:flex;gap:10px;align-items:flex-start}
.pain-q i{color:var(--orange);font-size:15px;margin-top:5px}
.pain-a{color:var(--muted);font-size:15px;padding-left:25px}

/* ===== 方案区 ===== */
.plans{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:48px}
.plan-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--border);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh-1);transition:all .28s ease;
}
.plan-card:hover{transform:translateY(-4px);box-shadow:var(--sh-3);border-color:rgba(91,61,245,.28)}
.plan-media{aspect-ratio:16/9;overflow:hidden;background:#EFEDE7}
.plan-media img{width:100%;height:100%;object-fit:cover;transition:transform .55s ease}
.plan-card:hover .plan-media img{transform:scale(1.045)}
.plan-body{padding:26px;display:flex;flex-direction:column;gap:12px;flex:1}
.plan-num{font-size:13px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums;letter-spacing:.1em}
.plan-body h3{font-size:21px}
.plan-body p{color:var(--muted);font-size:15.5px}
.plan-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:4px}
.plan-link{margin-top:auto;padding-top:14px;font-size:15px;font-weight:600;display:inline-flex;align-items:center;gap:8px}
.plan-link i{transition:transform .2s ease}
.plan-link:hover i{transform:translateX(4px)}
.plan-wide{grid-column:1 / -1;flex-direction:row;align-items:stretch}
.plan-wide .plan-media{width:38%;aspect-ratio:auto;flex-shrink:0}
.plan-wide .plan-body{padding:32px 34px;justify-content:center}
.plan-wide .plan-body h3{font-size:23px}

/* ===== 数据区 ===== */
.stats{padding:88px 0}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:48px}
.stat{padding:24px 22px;border-radius:var(--r-lg);background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.10)}
.stat-num{font-size:44px;font-weight:700;line-height:1.08;color:#fff;font-variant-numeric:tabular-nums;display:flex;align-items:baseline;gap:6px}
.stat-num span{font-size:14px;font-weight:500;color:var(--teal)}
.stat-label{color:rgba(245,243,239,.72);font-size:15px;margin-top:8px}
.stat-note{margin-top:32px;padding-top:18px;border-top:1px solid rgba(255,255,255,.12);font-size:12.5px;color:rgba(245,243,239,.48)}

/* ===== 步骤区 ===== */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:48px}
.step{background:#fff;border:1px solid var(--border);border-radius:var(--r-lg);padding:26px 24px;box-shadow:var(--sh-1);transition:all .26s ease;position:relative;overflow:hidden}
.step:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(0,210,168,.36)}
.step-idx{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;font-weight:700;font-size:15px;
  background:var(--brand-soft);color:var(--brand);margin-bottom:16px;font-variant-numeric:tabular-nums;
}
.step h3{font-size:17.5px;margin-bottom:8px}
.step p{color:var(--muted);font-size:15px}
.step-line{position:absolute;right:-14px;top:34px;width:28px;height:2px;background:var(--border)}
.steps .step:last-child .step-line{display:none}

/* ===== 最新信息（CMS） ===== */
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap}
.news-wrap{margin-top:40px;display:grid;gap:16px}
.news-feature{
  display:grid;grid-template-columns:340px 1fr;background:#fff;border:1px solid var(--border);
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);transition:all .28s ease;
}
.news-feature:hover{box-shadow:var(--sh-3);border-color:rgba(91,61,245,.26);transform:translateY(-3px)}
.news-feature-media{background:#EFEDE7;min-height:230px}
.news-feature-media img{width:100%;height:100%;object-fit:cover}
.news-feature-body{padding:30px 32px;display:flex;flex-direction:column;gap:12px;justify-content:center}
.news-feature-body h3{font-size:23px;line-height:1.34}
.news-feature-body h3 a{color:var(--text)}
.news-feature-body h3 a:hover{color:var(--brand)}
.news-feature-body p{color:var(--muted);font-size:15.5px}
.news-meta{display:flex;align-items:center;gap:12px;font-size:13.5px;color:var(--muted);font-variant-numeric:tabular-nums}
.news-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--border)}
.news-list{display:grid;gap:12px}
.news-item{
  display:flex;align-items:center;justify-content:space-between;gap:22px;background:#fff;
  border:1px solid var(--border);border-radius:var(--r-md);padding:18px 24px;transition:all .24s ease;
}
.news-item:hover{border-color:rgba(91,61,245,.3);box-shadow:var(--sh-2);transform:translateY(-2px)}
.news-item-main{min-width:0;flex:1}
.news-item-title{font-size:17px;margin-bottom:5px}
.news-item-title:hover{color:var(--brand)}
.news-item-summary{color:var(--muted);font-size:14.5px;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.news-item-side{display:flex;align-items:center;gap:14px;flex-shrink:0;font-size:13.5px;color:var(--muted);font-variant-numeric:tabular-nums}
.news-empty{
  margin-top:40px;padding:52px 24px;text-align:center;background:#fff;border:1px dashed var(--border);
  border-radius:var(--r-lg);color:var(--muted);
}
.news-empty i{font-size:26px;color:var(--brand);display:block;margin-bottom:14px}

/* ===== 评价区 ===== */
.voices{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:46px}
.voice{background:#fff;border:1px solid var(--border);border-radius:var(--r-lg);padding:28px;box-shadow:var(--sh-1);display:flex;flex-direction:column;gap:16px}
.voice-text{font-size:15.5px;color:var(--text);line-height:1.8}
.voice-who{display:flex;align-items:center;gap:12px;margin-top:auto;padding-top:16px;border-top:1px solid var(--line)}
.voice-avatar{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;background:var(--brand-soft);color:var(--brand);font-weight:700;font-size:14px}
.voice-who strong{display:block;font-size:14.5px}
.voice-who span{font-size:13px;color:var(--muted)}
.voice-stars{color:var(--orange);font-size:13px;letter-spacing:2px}

/* ===== FAQ ===== */
.faq-list{margin-top:44px;display:grid;gap:12px;max-width:920px}
.faq-item{background:#fff;border:1px solid var(--border);border-radius:var(--r-md);overflow:hidden;transition:border-color .24s ease,box-shadow .24s ease}
.faq-item:hover{border-color:rgba(91,61,245,.28)}
.faq-btn{
  width:100%;text-align:left;background:none;border:0;padding:20px 24px;font-size:17px;font-weight:600;color:var(--text);
  display:flex;justify-content:space-between;align-items:center;gap:18px;cursor:pointer;line-height:1.5;
}
.faq-btn::after{content:"+";font-size:22px;font-weight:400;color:var(--brand);flex-shrink:0;transition:transform .25s ease}
.faq-btn[aria-expanded="true"]::after{content:"−"}
.faq-btn:focus{outline:none;box-shadow:inset 0 0 0 3px rgba(91,61,245,.25)}
.faq-body{padding:0 24px 22px;color:var(--muted);font-size:15.5px}

/* ===== CTA ===== */
.cta{position:relative;overflow:hidden;padding:92px 0;color:var(--inverse)}
.cta-bg{position:absolute;inset:0;background:url('/assets/images/backpic/back-3.png') center/cover no-repeat}
.cta::after{content:"";position:absolute;inset:0;background:linear-gradient(118deg,rgba(16,18,24,.95) 0%,rgba(58,34,196,.78) 68%,rgba(0,210,168,.42) 100%)}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.3fr .9fr;gap:40px;align-items:center}
.cta h2{font-size:clamp(24px,2.8vw,36px);margin-bottom:16px}
.cta p{color:rgba(245,243,239,.82);font-size:16.5px;max-width:600px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}
.cta-box{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);border-radius:var(--r-xl);padding:30px;backdrop-filter:blur(10px)}
.cta-box h3{font-size:18px;margin-bottom:14px;color:#fff}
.cta-box ul{display:grid;gap:12px}
.cta-box li{display:flex;gap:10px;font-size:15px;color:rgba(245,243,239,.85)}
.cta-box li i{color:var(--teal);margin-top:5px;font-size:13px}

/* ===== 页脚 ===== */
.site-footer{background:var(--dark);color:rgba(245,243,239,.72);padding:68px 0 26px}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.3fr;gap:38px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:16.5px;margin-bottom:16px}
.footer-about{font-size:14.5px;line-height:1.8;color:rgba(245,243,239,.6);max-width:330px}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:600}
.site-footer a{display:block;color:rgba(245,243,239,.72);font-size:14.5px;padding:6px 0;transition:all .2s ease}
.site-footer a:hover{color:var(--teal);transform:translateX(3px)}
.footer-contact li{font-size:14.5px;padding:6px 0;display:flex;gap:10px;align-items:flex-start;color:rgba(245,243,239,.72)}
.footer-contact i{color:var(--teal);margin-top:5px;font-size:13px}
.footer-bottom{
  margin-top:46px;padding-top:22px;border-top:1px solid rgba(255,255,255,.10);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(245,243,239,.5);
}
.footer-bottom span{font-variant-numeric:tabular-nums}

/* ===== 弹层 ===== */
.modal-content{border:0;border-radius:var(--r-xl);overflow:hidden;box-shadow:0 30px 80px rgba(16,18,24,.4)}
.modal-header{border:0;padding:26px 30px 6px;align-items:flex-start}
.modal-header h3{font-size:21px}
.modal-header p{font-size:14px;color:var(--muted);margin-top:6px}
.modal-body{padding:18px 30px 26px}
.modal-footer{border:0;padding:0 30px 26px;display:block}
.modal .btn-close{opacity:.5}
.modal .btn-close:hover{opacity:.9}
.form-label{font-size:14px;font-weight:600;margin-bottom:7px}
.form-control,.form-select{
  height:48px;border:1px solid var(--border);border-radius:var(--r-md);font-size:15px;padding:10px 14px;
  background:#fff;color:var(--text);transition:all .2s ease;
}
textarea.form-control{height:auto;min-height:96px;resize:vertical;line-height:1.65}
.form-control::placeholder{color:#A6A9AE}
.form-control:focus,.form-select:focus{border-color:var(--brand);box-shadow:0 0 0 4px rgba(91,61,245,.16);outline:none}
.form-check-input{width:18px;height:18px;margin-top:3px;border-color:#CFCAC0}
.form-check-input:checked{background-color:var(--brand);border-color:var(--brand)}
.form-check-input:focus{box-shadow:0 0 0 4px rgba(91,61,245,.16);border-color:var(--brand)}
.form-check-label{font-size:14px;color:var(--muted)}
.privacy-note{
  margin-top:16px;padding-top:16px;border-top:1px solid var(--line);font-size:12.5px;color:var(--muted);line-height:1.75;
}
.form-tip{display:none;margin-top:12px;font-size:14px;color:#019A7C;background:var(--teal-soft);border-radius:var(--r-sm);padding:10px 14px}
.form-tip.show{display:block}

/* ===== 响应式 ===== */
@media (max-width:1199.98px){
  :root{--sec:80px}
  .container{max-width:1080px}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .step-line{display:none}
}
@media (max-width:991.98px){
  :root{--sec:64px}
  .site-header{padding-top:10px}
  .nav-shell{flex-wrap:wrap;border-radius:var(--r-lg);padding:12px 16px;gap:12px}
  .nav-links{flex-direction:column;align-items:stretch;margin:12px 0 0;gap:2px;width:100%}
  .nav-links .nav-link{padding:12px 14px;border-radius:var(--r-md);color:rgba(245,243,239,.88)}
  .nav-actions{width:100%;margin-top:10px}
  .nav-actions .btn{width:100%;text-align:center;border-radius:var(--r-md)}
  .navbar-collapse{
    background:rgba(16,18,24,.97);border:1px solid rgba(255,255,255,.10);border-radius:var(--r-md);
    padding:14px 16px;margin-top:10px;width:100%;
  }
  .hero{padding:132px 0 76px}
  .hero-panel{margin-top:8px}
  .plans{grid-template-columns:1fr}
  .plan-wide{flex-direction:column}
  .plan-wide .plan-media{width:100%;aspect-ratio:16/9}
  .plan-wide .plan-body{padding:26px}
  .news-feature{grid-template-columns:1fr}
  .news-feature-media{min-height:200px;aspect-ratio:16/9}
  .voices{grid-template-columns:1fr}
  .cta-inner{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .footer-about{max-width:none}
}
@media (max-width:767.98px){
  :root{--sec:52px}
  body{font-size:15.5px}
  .hero{padding:120px 0 62px}
  .hero-sub{font-size:16.5px}
  .hero-actions .btn{width:100%;text-align:center}
  .hero-tags li{font-size:12.5px}
  .pain-grid{grid-template-columns:1fr}
  .section-title{font-size:24px}
  .news-item{flex-direction:column;align-items:flex-start;gap:12px}
  .news-item-side{flex-wrap:wrap}
  .faq-btn{font-size:16px;padding:17px 18px}
  .faq-body{padding:0 18px 18px}
  .stats-grid{grid-template-columns:1fr;gap:16px}
  .stat-num{font-size:38px}
  .steps{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .hero-panel{padding:20px}
}
@media (max-width:575.98px){
  .container{padding:0 16px}
  .hero h1{font-size:29px}
  .modal-dialog{margin:0;position:fixed;left:0;right:0;bottom:0;top:auto;max-width:none}
  .modal.fade .modal-dialog{transform:translateY(40px)}
  .modal.show .modal-dialog{transform:none}
  .modal-content{border-radius:var(--r-xl) var(--r-xl) 0 0}
  .modal-body{max-height:66vh;overflow:auto}
  .modal-header,.modal-body,.modal-footer{padding-left:20px;padding-right:20px}
  .brand-text{font-size:14.5px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important}
}

/* roulang page: article */
:root{
  --brand:#5B3DF5;
  --brand-hover:#4429D8;
  --brand-active:#3A22C4;
  --mint:#00D2A8;
  --mint-hover:#00B892;
  --warm:#FF7A45;
  --bg:#F7F5F0;
  --card:#FFFFFF;
  --dark:#101218;
  --text:#16181D;
  --muted:#6B6F76;
  --invert:#F5F3EF;
  --line:#E4E0D8;
  --divider:rgba(16,18,24,.08);
  --ok:#1FBF75;
  --warn:#E0A400;
  --err:#E5484D;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:20px;
  --r-xl:28px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,18,24,.06);
  --sh-card:0 12px 32px rgba(16,18,24,.08);
  --sh-hover:0 18px 48px rgba(91,61,245,.16);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"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:1.72;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-hover)}
button,input,textarea,select{font-family:inherit;font-size:inherit}
h1,h2,h3,h4,h5{margin:0;line-height:1.25;font-weight:700;letter-spacing:.2px}
p{margin:0 0 16px}
ul,ol{margin:0 0 16px;padding-left:20px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px}
.section{padding:88px 0}
.section-sm{padding:64px 0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:1.4px;
  color:var(--brand);text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--mint);border-radius:2px}
.section-title{font-size:32px;margin-bottom:14px}
.section-sub{color:var(--muted);max-width:720px;margin-bottom:0}
.num{font-variant-numeric:tabular-nums}

/* ===== Header / Nav ===== */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1030;
  padding:14px 0;
  background:rgba(16,18,24,.35);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(255,255,255,.12);
  box-shadow:0 8px 30px rgba(16,18,24,.12);
  transition:background .3s ease,padding .3s ease,box-shadow .3s ease;
}
.site-header.is-stuck{
  background:rgba(16,18,24,.96);
  padding:9px 0;
  box-shadow:0 12px 34px rgba(16,18,24,.28);
}
.nav-shell{display:flex;align-items:center;gap:20px;flex-wrap:nowrap}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;flex:0 0 auto}
.brand-mark{
  width:40px;height:40px;border-radius:var(--r-md);
  background:linear-gradient(135deg,var(--brand),var(--mint));
  color:#fff;font-weight:700;font-size:19px;
  display:grid;place-items:center;box-shadow:0 6px 18px rgba(91,61,245,.35);
}
.brand-text{color:#fff;font-weight:700;font-size:17px;letter-spacing:.4px;white-space:nowrap}
.navbar-toggler{
  border:1px solid rgba(255,255,255,.24);border-radius:var(--r-sm);
  color:#fff;padding:8px 12px;min-width:44px;min-height:44px;
}
.navbar-toggler:focus{box-shadow:0 0 0 3px rgba(91,61,245,.4)}
.nav-links{gap:4px;align-items:center}
.nav-links .nav-link{
  color:rgba(245,243,239,.82);font-size:15px;font-weight:500;
  padding:9px 15px;border-radius:var(--r-pill);transition:all .22s ease;
}
.nav-links .nav-link:hover{color:#fff;background:rgba(255,255,255,.10)}
.nav-links .nav-link.active{color:#fff;background:rgba(91,61,245,.62)}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto}

/* ===== Buttons ===== */
.btn{border-radius:var(--r-md);font-weight:600;transition:all .22s ease;border:0}
.btn:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(91,61,245,.45)}
.btn-brand{background:var(--brand);color:#fff;padding:11px 20px;box-shadow:0 8px 22px rgba(91,61,245,.28)}
.btn-brand:hover{background:var(--brand-hover);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-hover)}
.btn-brand:active{background:var(--brand-active);transform:translateY(0)}
.btn-ghost{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.4);padding:11px 20px}
.btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff}
.btn-outline-brand{background:#fff;color:var(--brand);border:1px solid rgba(91,61,245,.35);padding:11px 20px}
.btn-outline-brand:hover{background:rgba(91,61,245,.06);color:var(--brand-hover);transform:translateY(-2px)}
.btn-mint{background:var(--mint);color:#053B31;padding:11px 20px}
.btn-mint:hover{background:var(--mint-hover);color:#04352C;transform:translateY(-2px)}

/* ===== Tags / Badges ===== */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12.5px;font-weight:600;line-height:1;
  padding:7px 12px;border-radius:var(--r-pill);
  background:rgba(0,210,168,.12);color:#00795F;
}
.tag-warm{background:rgba(255,122,69,.14);color:#B4461F}
.tag-brand{background:rgba(91,61,245,.10);color:var(--brand)}

/* ===== Article banner ===== */
.article-hero{
  position:relative;
  padding:150px 0 64px;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  color:var(--invert);
}
.article-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(16,18,24,.92) 0%,rgba(16,18,24,.72) 55%,rgba(16,18,24,.94) 100%);
}
.article-hero .container{position:relative;z-index:2}
.breadcrumb-nav{
  font-size:13.5px;color:rgba(245,243,239,.7);
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:20px;
}
.breadcrumb-nav a{color:rgba(245,243,239,.82)}
.breadcrumb-nav a:hover{color:var(--mint)}
.breadcrumb-nav .sep{opacity:.45}
.article-hero h1{
  font-size:40px;line-height:1.24;max-width:900px;margin-bottom:20px;color:#fff;
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;
  font-size:14px;color:rgba(245,243,239,.78);
}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:rgba(245,243,239,.4)}
.meta-row i{color:var(--mint);margin-right:6px}

/* ===== Article body ===== */
.article-wrap{padding:64px 0 88px}
.article-shell{
  max-width:820px;margin:0 auto;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-xl);
  box-shadow:var(--sh-card);
  padding:48px 52px;
}
.article-body{font-size:16.5px;line-height:1.78;color:var(--text)}
.article-body h2{
  font-size:25px;margin:40px 0 16px;padding-left:14px;position:relative;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;
  border-radius:4px;background:linear-gradient(180deg,var(--brand),var(--mint));
}
.article-body h3{font-size:20px;margin:28px 0 12px;color:var(--brand-active)}
.article-body h4{font-size:17px;margin:22px 0 10px}
.article-body p{margin-bottom:18px}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:22px}
.article-body li{margin-bottom:8px}
.article-body img{
  border-radius:var(--r-lg);margin:24px 0;border:1px solid var(--line);
}
.article-body blockquote{
  margin:24px 0;padding:18px 22px;
  background:rgba(91,61,245,.05);
  border-left:4px solid var(--brand);
  border-radius:0 var(--r-md) var(--r-md) 0;
  color:#3A3E46;
}
.article-body code{
  background:rgba(16,18,24,.06);padding:2px 7px;border-radius:6px;
  font-size:14.5px;color:var(--brand-active);
}
.article-body pre{
  background:var(--dark);color:#E9E6F5;padding:20px;
  border-radius:var(--r-md);overflow-x:auto;margin:22px 0;font-size:14.5px;
}
.article-body pre code{background:none;color:inherit;padding:0}
.article-body table{
  width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;
  border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;
}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left}
.article-body th{background:#FAF8F4;font-weight:600}
.article-body tr:last-child td{border-bottom:0}
.article-body a{color:var(--brand);border-bottom:1px dashed rgba(91,61,245,.45)}
.article-body a:hover{color:var(--brand-hover);border-bottom-color:var(--brand-hover)}
.article-table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}

.empty-state{
  text-align:center;padding:56px 20px;
}
.empty-state .empty-icon{
  width:72px;height:72px;border-radius:50%;margin:0 auto 18px;
  background:rgba(91,61,245,.09);color:var(--brand);
  display:grid;place-items:center;font-size:28px;
}
.empty-state h2{font-size:22px;margin-bottom:10px}
.empty-state p{color:var(--muted);margin-bottom:22px}

/* ===== CTA strip ===== */
.cta-strip{
  margin-top:48px;
  background:var(--dark);
  border-radius:var(--r-xl);
  padding:40px 44px;
  color:var(--invert);
  display:flex;flex-wrap:wrap;align-items:center;gap:24px;
  justify-content:space-between;
  position:relative;overflow:hidden;
}
.cta-strip::before{
  content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;
  border-radius:50%;background:radial-gradient(circle,rgba(0,210,168,.35),transparent 70%);
}
.cta-strip h3{font-size:23px;margin-bottom:8px;color:#fff;position:relative}
.cta-strip p{color:rgba(245,243,239,.72);margin:0;position:relative;max-width:560px}
.cta-strip .cta-actions{position:relative;display:flex;gap:12px;flex-wrap:wrap}

/* ===== Related ===== */
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:32px}
.rel-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh-1);transition:all .26s ease;height:100%;
  display:flex;flex-direction:column;
}
.rel-card:hover{transform:translateY(-4px);border-color:rgba(91,61,245,.3);box-shadow:var(--sh-hover)}
.rel-card .rel-thumb{aspect-ratio:16/9;overflow:hidden;background:#EDEAE3}
.rel-card .rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.rel-card:hover .rel-thumb img{transform:scale(1.05)}
.rel-card .rel-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.rel-card h4{font-size:18px;line-height:1.4}
.rel-card p{font-size:14.5px;color:var(--muted);margin:0;flex:1}
.rel-meta{font-size:13px;color:var(--muted);display:flex;gap:12px;align-items:center}
.rel-card .link-more{font-size:14.5px;font-weight:600;color:var(--brand)}

/* ===== FAQ ===== */
.faq-list{max-width:900px;margin:34px auto 0;display:grid;gap:14px}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;transition:border-color .22s ease,box-shadow .22s ease;
}
.faq-item.open{border-color:rgba(91,61,245,.35);box-shadow:var(--sh-card)}
.faq-q{
  width:100%;background:none;border:0;text-align:left;
  padding:18px 22px;font-size:16.5px;font-weight:600;color:var(--text);
  display:flex;justify-content:space-between;align-items:center;gap:16px;cursor:pointer;
}
.faq-q:focus-visible{outline:none;box-shadow:inset 0 0 0 3px rgba(91,61,245,.35)}
.faq-q .faq-sign{
  flex:0 0 auto;width:28px;height:28px;border-radius:50%;
  background:rgba(91,61,245,.10);color:var(--brand);
  display:grid;place-items:center;font-size:14px;font-weight:700;
}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a-inner{padding:0 22px 20px;color:var(--muted);font-size:15.5px}

/* ===== Back links ===== */
.back-links{display:flex;gap:12px;flex-wrap:wrap;margin-top:36px}

/* ===== Modal ===== */
.modal-content{border:0;border-radius:var(--r-xl);overflow:hidden}
.modal-header{border-bottom:1px solid var(--divider);padding:20px 24px}
.modal-title{font-size:19px;font-weight:700}
.modal-body{padding:24px}
.form-label{font-size:14px;font-weight:600;color:var(--text);margin-bottom:6px}
.form-control,.form-select{
  height:48px;border-radius:var(--r-md);border:1px solid var(--line);
  font-size:15px;padding:0 14px;color:var(--text);background:#FDFCFA;
}
textarea.form-control{height:auto;padding:12px 14px}
.form-control:focus,.form-select:focus{
  border-color:var(--brand);box-shadow:0 0 0 3px rgba(91,61,245,.18);background:#fff;
}
.form-check-input:checked{background-color:var(--brand);border-color:var(--brand)}
.form-check-input:focus{box-shadow:0 0 0 3px rgba(91,61,245,.25)}
.privacy-note{
  font-size:13px;color:var(--muted);background:#FAF8F4;
  border:1px solid var(--line);border-radius:var(--r-md);padding:12px 14px;
}
.privacy-note a{color:var(--brand)}
.modal-footer{border-top:1px solid var(--divider);padding:16px 24px;gap:10px}

/* ===== Footer ===== */
.site-footer{background:var(--dark);color:rgba(245,243,239,.72);padding:64px 0 26px;margin-top:0}
.site-footer .footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:36px;
  padding-bottom:36px;border-bottom:1px solid rgba(255,255,255,.1);
}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:17px;margin-bottom:14px}
.footer-about{font-size:14.5px;line-height:1.8;margin:0;max-width:360px}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:600}
.site-footer a{display:block;color:rgba(245,243,239,.72);font-size:14.5px;margin-bottom:10px}
.site-footer a:hover{color:var(--mint)}
.footer-contact{list-style:none;padding:0;margin:0}
.footer-contact li{display:flex;gap:10px;font-size:14.5px;margin-bottom:12px;line-height:1.6}
.footer-contact i{color:var(--mint);margin-top:4px}
.footer-bottom{
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  padding-top:22px;font-size:13px;color:rgba(245,243,239,.5);
}

/* ===== Responsive ===== */
@media (max-width:1199.98px){
  .container{max-width:1140px}
  .article-hero h1{font-size:36px}
}
@media (max-width:991.98px){
  .section{padding:64px 0}
  .nav-shell{flex-wrap:wrap}
  .navbar-collapse{
    background:rgba(16,18,24,.97);
    border:1px solid rgba(255,255,255,.12);
    border-radius:var(--r-lg);
    margin-top:14px;padding:14px;
  }
  .nav-links .nav-link{padding:12px 14px;border-radius:var(--r-sm)}
  .nav-actions{margin:12px 0 4px;width:100%}
  .nav-actions .btn{width:100%}
  .article-hero{padding:130px 0 52px}
  .article-hero h1{font-size:31px}
  .article-shell{padding:34px 28px;border-radius:var(--r-lg)}
  .related-grid{grid-template-columns:1fr 1fr}
  .site-footer .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:767.98px){
  .section{padding:48px 0}
  .article-hero{padding:118px 0 44px}
  .article-hero h1{font-size:27px}
  .article-wrap{padding:44px 0 64px}
  .article-shell{padding:26px 20px}
  .article-body{font-size:16px}
  .article-body h2{font-size:21px;margin-top:32px}
  .article-body h3{font-size:18px}
  .related-grid{grid-template-columns:1fr}
  .cta-strip{padding:28px 22px}
  .cta-strip .cta-actions{width:100%}
  .cta-strip .cta-actions .btn{width:100%}
  .modal-dialog{margin:0;align-items:flex-end;min-height:100%}
  .modal-content{border-radius:var(--r-xl) var(--r-xl) 0 0}
  .back-links .btn{width:100%}
}
@media (max-width:575.98px){
  .container{padding:0 16px}
  .brand-text{font-size:15px}
  .brand-mark{width:36px;height:36px;font-size:17px}
  .site-footer .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;gap:8px}
  .faq-q{font-size:15.5px;padding:16px 18px}
  .faq-a-inner{padding:0 18px 18px}
}

/* roulang page: category1 */
:root{
  --brand:#5B3DF5;
  --brand-hover:#4429D8;
  --brand-active:#3A22C4;
  --teal:#00D2A8;
  --teal-hover:#00B892;
  --orange:#FF7A45;
  --bg:#F7F5F0;
  --card:#FFFFFF;
  --dark:#101218;
  --text:#16181D;
  --muted:#6B6F76;
  --inverse:#F5F3EF;
  --border:#E4E0D8;
  --divider:rgba(16,18,24,.08);
  --success:#1FBF75;
  --warning:#E0A400;
  --danger:#E5484D;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:20px;
  --r-xl:28px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,18,24,.06);
  --sh-card:0 12px 32px rgba(16,18,24,.08);
  --sh-hover:0 18px 48px rgba(91,61,245,.16);
  --container:1240px;
  --sec:92px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{line-height:1.25;font-weight:700;margin:0;letter-spacing:-.01em;}
h1{font-size:clamp(28px,4.2vw,52px);}
h2{font-size:clamp(24px,3vw,36px);}
h3{font-size:clamp(19px,2vw,23px);}
p{margin:0;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-hover);}
img{max-width:100%;display:block;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.num{font-variant-numeric:tabular-nums;}

/* ============ 顶部导航 ============ */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:1040;
  background:rgba(16,18,24,.35);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(255,255,255,.12);
  box-shadow:0 8px 28px rgba(16,18,24,.18);
  transition:background .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.site-header.is-stuck{
  background:rgba(16,18,24,.95);
  border-bottom-color:rgba(255,255,255,.08);
  box-shadow:0 10px 30px rgba(16,18,24,.28);
}
.nav-shell{display:flex;align-items:center;gap:20px;min-height:74px;}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;
  display:grid;place-items:center;
  border-radius:11px;
  background:linear-gradient(135deg,var(--brand),#8B6BFF 60%,var(--teal));
  color:#fff;font-weight:700;font-size:18px;
  box-shadow:0 8px 20px rgba(91,61,245,.42);
}
.brand-text{color:#fff;font-weight:700;font-size:17px;letter-spacing:.01em;white-space:nowrap;}
.navbar-toggler{
  border:1px solid rgba(255,255,255,.24);
  border-radius:var(--r-sm);
  color:#fff;width:44px;height:44px;
  display:grid;place-items:center;background:transparent;
}
.navbar-toggler:focus{box-shadow:none;}
.nav-links{display:flex;align-items:center;gap:6px;margin:0;flex-direction:row;}
.nav-links .nav-link{
  color:rgba(245,243,239,.82);
  font-size:15px;
  padding:10px 14px;
  border-radius:var(--r-pill);
  transition:background .2s ease,color .2s ease;
}
.nav-links .nav-link:hover{color:#fff;background:rgba(255,255,255,.10);}
.nav-links .nav-link.active{
  color:#fff;
  background:rgba(91,61,245,.32);
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.16);
}
.nav-actions{display:flex;align-items:center;gap:12px;}
.btn-brand{
  background:var(--brand);border:1px solid var(--brand);color:#fff;
  border-radius:var(--r-md);padding:11px 20px;font-weight:600;font-size:15px;
  transition:transform .2s ease,background .2s ease,box-shadow .2s ease;
  box-shadow:0 8px 22px rgba(91,61,245,.32);
}
.btn-brand:hover{background:var(--brand-hover);border-color:var(--brand-hover);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-hover);}
.btn-brand:active{background:var(--brand-active);border-color:var(--brand-active);transform:translateY(0);}
.btn-outline-light-2{
  background:#fff;color:var(--text);border:1px solid var(--border);
  border-radius:var(--r-md);padding:11px 20px;font-weight:600;font-size:15px;transition:all .2s ease;
}
.btn-outline-light-2:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);box-shadow:0 10px 26px rgba(16,18,24,.10);}
.btn-ghost{
  background:transparent;color:#fff;border:1px solid rgba(255,255,255,.42);
  border-radius:var(--r-md);padding:11px 20px;font-weight:600;font-size:15px;transition:all .2s ease;
}
.btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;transform:translateY(-2px);}
.btn-block{width:100%;display:block;text-align:center;}

@media (max-width:991.98px){
  .navbar-collapse{
    margin-top:14px;padding:14px;
    background:rgba(16,18,24,.96);
    -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
    border:1px solid rgba(255,255,255,.10);
    border-radius:var(--r-lg);
    box-shadow:0 18px 40px rgba(16,18,24,.34);
  }
  .nav-links{flex-direction:column;align-items:stretch;gap:4px;}
  .nav-links .nav-link{display:block;padding:12px 14px;min-height:44px;}
  .nav-actions{margin-top:12px;}
  .nav-actions .btn{width:100%;min-height:46px;}
}

/* ============ 内页 Banner ============ */
.page-hero{
  position:relative;
  padding:150px 0 84px;
  background-image:linear-gradient(100deg,rgba(16,18,24,.92) 0%,rgba(16,18,24,.74) 48%,rgba(16,18,24,.36) 100%),url("/assets/images/backpic/back-1.webp");
  background-size:cover;
  background-position:center;
  color:var(--inverse);
  overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 82%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 82%);
}
.page-hero .container{position:relative;z-index:2;}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:rgba(245,243,239,.68);margin-bottom:20px;}
.crumbs a{color:rgba(245,243,239,.86);}
.crumbs a:hover{color:var(--teal);}
.crumbs span.sep{opacity:.5;}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;border-radius:var(--r-pill);
  background:rgba(0,210,168,.16);
  border:1px solid rgba(0,210,168,.42);
  color:#8CF3DE;font-size:13px;font-weight:600;margin-bottom:22px;
}
.page-hero h1{max-width:900px;color:#fff;}
.page-hero .hero-sub{
  max-width:760px;margin-top:20px;
  font-size:clamp(16px,1.5vw,19px);
  color:rgba(245,243,239,.82);line-height:1.75;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:7px 14px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:600;
  background:rgba(255,255,255,.10);
  border:1px solid rgba(255,255,255,.18);
  color:var(--inverse);
}
.tag-teal{background:rgba(0,210,168,.18);border-color:rgba(0,210,168,.4);color:#8CF3DE;}
.tag-orange{background:rgba(255,122,69,.18);border-color:rgba(255,122,69,.42);color:#FFC7AC;}
.tag-solid{background:rgba(91,61,245,.24);border-color:rgba(139,107,255,.48);color:#D8CEFF;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px;}

/* ============ 主体布局 ============ */
.section{padding:var(--sec) 0;}
.section-tight{padding:64px 0;}
.section-title{margin-bottom:18px;}
.section-lead{color:var(--muted);max-width:820px;font-size:16.5px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;color:var(--brand);
  letter-spacing:.08em;text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--brand);border-radius:2px;}

.cat-layout{display:grid;grid-template-columns:268px minmax(0,1fr);gap:44px;align-items:start;}
.side-card{
  position:sticky;top:104px;
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  padding:22px;
}
.side-title{font-size:13px;font-weight:700;color:var(--muted);letter-spacing:.12em;margin-bottom:14px;}
.side-nav{display:flex;flex-direction:column;gap:4px;}
.side-link{
  display:flex;align-items:center;justify-content:space-between;
  gap:8px;padding:10px 12px;border-radius:var(--r-md);
  font-size:14.5px;color:var(--muted);font-weight:500;
  transition:background .2s ease,color .2s ease;
}
.side-link:hover{background:#F2EFFA;color:var(--brand);}
.side-link.is-active{background:rgba(91,61,245,.10);color:var(--brand);font-weight:700;box-shadow:inset 3px 0 0 var(--brand);}
.side-foot{margin-top:20px;padding-top:18px;border-top:1px dashed var(--border);}
.side-foot p{font-size:13px;color:var(--muted);margin-bottom:12px;line-height:1.6;}
.side-toggle{display:none;}

.block{margin-bottom:56px;}
.block:last-child{margin-bottom:0;}
.block-head{margin-bottom:22px;}
.block-head h2{font-size:clamp(22px,2.4vw,30px);}
.block-head p{color:var(--muted);margin-top:12px;}

.panel{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  padding:26px 26px;
}
.panel + .panel{margin-top:20px;}
.panel h3{font-size:19px;margin-bottom:12px;}
.panel p{color:#3C4048;font-size:15.5px;margin-bottom:14px;}
.panel p:last-child{margin-bottom:0;}
.lead-note{
  border-left:3px solid var(--teal);
  background:rgba(0,210,168,.07);
  border-radius:0 var(--r-md) var(--r-md) 0;
  padding:16px 20px;font-size:15px;color:#2A2E36;
}
.check-list{display:grid;gap:12px;}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:15.5px;color:#3C4048;}
.check-list i{color:var(--teal-hover);margin-top:5px;font-size:15px;}

/* 功能卡片 */
.feat-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
.feat-card{
  position:relative;
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--r-lg);
  padding:26px 24px;
  box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
  overflow:hidden;
}
.feat-card::before{
  content:"";position:absolute;left:0;top:0;height:3px;width:100%;
  background:linear-gradient(90deg,var(--brand),var(--teal));
  opacity:0;transition:opacity .25s ease;
}
.feat-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:rgba(91,61,245,.30);}
.feat-card:hover::before{opacity:1;}
.feat-num{
  display:inline-grid;place-items:center;
  width:40px;height:40px;border-radius:var(--r-md);
  background:rgba(91,61,245,.10);color:var(--brand);
  font-weight:700;font-size:15px;margin-bottom:16px;
  font-variant-numeric:tabular-nums;
}
.feat-card h3{font-size:19px;margin-bottom:10px;}
.feat-card p{font-size:15px;color:var(--muted);line-height:1.7;}
.feat-card .tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.chip{
  display:inline-block;padding:4px 11px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;
  background:rgba(0,210,168,.12);color:#00876C;
}
.chip-orange{background:rgba(255,122,69,.14);color:#C24A18;}
.chip-violet{background:rgba(91,61,245,.10);color:var(--brand);}

/* 对比表 */
.table-wrap{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  overflow:hidden;
}
.table-scroll{overflow-x:auto;}
table.cmp{width:100%;min-width:720px;border-collapse:collapse;font-size:15px;}
table.cmp thead th{
  background:#F2EFFA;
  color:var(--text);
  font-weight:700;font-size:14.5px;
  text-align:left;padding:16px 18px;
  border-bottom:1px solid var(--border);
  white-space:nowrap;
}
table.cmp tbody td{
  padding:16px 18px;
  border-bottom:1px solid var(--divider);
  color:#3C4048;vertical-align:top;
}
table.cmp tbody tr:last-child td{border-bottom:none;}
table.cmp tbody tr:hover{background:#FBFAF7;}
table.cmp td:first-child{font-weight:600;color:var(--text);}
.dot-ok{color:var(--success);font-weight:600;}
.dot-mid{color:var(--warning);font-weight:600;}
.dot-no{color:var(--muted);}

/* 步骤 */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;}
.step{
  background:var(--card);border:1px solid var(--border);border-radius:var(--r-lg);
  padding:24px 20px;box-shadow:var(--sh-1);position:relative;
  transition:transform .25s ease,box-shadow .25s ease;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--sh-card);}
.step-index{
  font-size:13px;font-weight:700;color:var(--brand);
  letter-spacing:.1em;margin-bottom:10px;font-variant-numeric:tabular-nums;
}
.step h3{font-size:17px;margin-bottom:8px;}
.step p{font-size:14.5px;color:var(--muted);line-height:1.68;}

/* 数据条 */
.stat-band{
  background:var(--dark);
  border-radius:var(--r-xl);
  padding:40px 34px;
  color:var(--inverse);
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:26px;
  background-image:radial-gradient(circle at 88% 12%,rgba(91,61,245,.34),transparent 52%),radial-gradient(circle at 8% 88%,rgba(0,210,168,.22),transparent 48%);
}
.stat-item{border-left:1px solid rgba(255,255,255,.14);padding-left:20px;}
.stat-item:first-child{border-left:none;padding-left:0;}
.stat-value{font-size:clamp(30px,3.6vw,44px);font-weight:700;font-variant-numeric:tabular-nums;line-height:1.1;}
.stat-value small{font-size:14px;font-weight:600;margin-left:4px;color:rgba(245,243,239,.72);}
.stat-label{font-size:14px;color:rgba(245,243,239,.86);margin-top:8px;font-weight:600;}
.stat-note{font-size:12px;color:rgba(245,243,239,.55);margin-top:6px;}

/* 图文板块 */
.media-row{
  display:grid;grid-template-columns:1.05fr .95fr;gap:36px;align-items:center;
}
.media-row.reverse .media-text{order:2;}
.media-img{
  border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--border);
  box-shadow:var(--sh-card);background:#EDEAE2;
}
.media-img img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.media-text h3{font-size:clamp(20px,2.2vw,26px);margin-bottom:14px;}
.media-text p{color:var(--muted);font-size:15.5px;margin-bottom:14px;}
.media-text .check-list{margin-top:18px;}

/* FAQ */
.faq-list{display:grid;gap:12px;}
.faq-item{
  background:var(--card);border:1px solid var(--border);
  border-radius:var(--r-md);overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item:hover{border-color:rgba(91,61,245,.34);box-shadow:var(--sh-1);}
.faq-q{
  width:100%;background:transparent;border:none;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;text-align:left;
  font-size:16.5px;font-weight:600;color:var(--text);cursor:pointer;
  transition:color .2s ease;
}
.faq-q:hover{color:var(--brand);}
.faq-q::after{
  content:"+";flex:0 0 auto;font-size:20px;font-weight:600;color:var(--brand);
  line-height:1;transition:transform .25s ease;
}
.faq-q:not(.collapsed)::after{content:"−";transform:rotate(0deg);}
.faq-a{padding:0 20px 20px;color:var(--muted);font-size:15.5px;line-height:1.75;}
.faq-a strong{color:var(--text);font-weight:600;}

/* CTA */
.cta-box{
  background:linear-gradient(120deg,rgba(91,61,245,.96),rgba(58,34,196,.94) 58%,rgba(0,210,168,.86));
  border-radius:var(--r-xl);
  padding:48px 42px;
  color:#fff;
  display:grid;grid-template-columns:1.2fr .8fr;gap:32px;align-items:center;
  box-shadow:0 24px 60px rgba(91,61,245,.28);
}
.cta-box h2{color:#fff;font-size:clamp(22px,2.6vw,32px);}
.cta-box p{color:rgba(255,255,255,.88);margin-top:14px;font-size:16px;line-height:1.75;}
.cta-actions{display:flex;flex-direction:column;gap:14px;}
.cta-actions .btn-outline-light-2{background:#fff;border-color:#fff;color:var(--brand);}
.cta-actions .btn-outline-light-2:hover{background:#F4F1FF;color:var(--brand-hover);}
.privacy-line{font-size:12.5px;color:rgba(255,255,255,.78);display:flex;gap:8px;align-items:flex-start;line-height:1.6;}
.privacy-line a{color:#fff;text-decoration:underline;}

.back-home{display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
  background:var(--card);border:1px solid var(--border);border-radius:var(--r-lg);
  padding:22px 26px;box-shadow:var(--sh-1);}
.back-home p{color:var(--muted);font-size:14.5px;}

/* ============ 表单弹层 ============ */
.modal-content.custom-modal{
  border:none;border-radius:var(--r-xl);overflow:hidden;
  box-shadow:0 32px 80px rgba(16,18,24,.34);
}
.custom-modal .modal-head{
  padding:26px 28px 18px;
  background:linear-gradient(120deg,rgba(91,61,245,.10),rgba(0,210,168,.10));
  border-bottom:1px solid var(--divider);
}
.custom-modal .modal-head h5{font-size:21px;font-weight:700;margin:0 0 8px;}
.custom-modal .modal-head p{font-size:14px;color:var(--muted);margin:0;}
.custom-modal .modal-body{padding:24px 28px 8px;}
.custom-modal .modal-footer-2{
  padding:16px 28px 24px;background:#FBFAF7;border-top:1px solid var(--divider);
}
.form-field{margin-bottom:16px;}
.form-field label{display:block;font-size:14px;font-weight:600;margin-bottom:8px;}
.form-field label .req{color:var(--danger);margin-left:2px;}
.form-control.custom-input{
  height:48px;border-radius:var(--r-md);border:1px solid var(--border);
  font-size:15px;padding:0 14px;color:var(--text);background:#fff;
  transition:border-color .2s ease,box-shadow .2s ease;
}
textarea.custom-input{height:auto;min-height:92px;padding:12px 14px;resize:vertical;line-height:1.6;}
.form-control.custom-input:focus{
  border-color:var(--brand);box-shadow:0 0 0 4px rgba(91,61,245,.14);outline:none;
}
.form-check-input{width:18px;height:18px;margin-top:3px;border-color:var(--border);}
.form-check-input:checked{background-color:var(--brand);border-color:var(--brand);}
.form-check-input:focus{box-shadow:0 0 0 4px rgba(91,61,245,.14);border-color:var(--brand);}
.form-check-label{font-size:13.5px;color:var(--muted);line-height:1.6;}
.form-check-label a{text-decoration:underline;}
.form-msg{font-size:13.5px;margin-top:12px;display:none;}
.form-msg.ok{display:block;color:var(--success);}
.form-msg.err{display:block;color:var(--danger);}
.privacy-sticky{
  font-size:12.5px;color:var(--muted);line-height:1.6;
  margin-bottom:14px;
}
.privacy-sticky i{color:var(--teal-hover);margin-right:6px;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--dark);color:var(--inverse);
  padding:72px 0 30px;margin-top:8px;
  border-top:1px solid rgba(255,255,255,.08);
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:38px;}
.footer-brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:17px;margin-bottom:16px;}
.footer-about{font-size:14px;color:rgba(245,243,239,.66);line-height:1.75;max-width:340px;}
.site-footer h4{font-size:15px;font-weight:700;margin-bottom:16px;color:#fff;}
.site-footer .footer-grid a{
  display:block;font-size:14px;color:rgba(245,243,239,.68);
  padding:5px 0;transition:color .2s ease,transform .2s ease;
}
.site-footer .footer-grid a:hover{color:var(--teal);transform:translateX(3px);}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:rgba(245,243,239,.68);padding:5px 0;line-height:1.6;}
.footer-contact i{color:var(--teal);margin-top:5px;}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.10);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:12.5px;color:rgba(245,243,239,.5);
}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  :root{--sec:76px;}
  .cat-layout{grid-template-columns:236px minmax(0,1fr);gap:32px;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:30px;}
}
@media (max-width:991.98px){
  :root{--sec:64px;}
  .page-hero{padding:126px 0 64px;}
  .cat-layout{grid-template-columns:1fr;gap:26px;}
  .side-card{position:static;padding:18px;}
  .side-toggle{
    display:flex;align-items:center;justify-content:space-between;width:100%;
    background:transparent;border:none;padding:0;
    font-size:14px;font-weight:700;color:var(--text);cursor:pointer;
  }
  .side-toggle i{color:var(--brand);transition:transform .25s ease;}
  .side-panel{max-height:0;overflow:hidden;transition:max-height .3s ease;}
  .side-panel.is-open{max-height:520px;}
  .side-title{display:none;}
  .side-nav{margin-top:14px;}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));}
  .stat-band{grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;}
  .stat-item:nth-child(3){border-left:none;padding-left:0;}
  .cta-box{grid-template-columns:1fr;padding:36px 28px;}
  .media-row{grid-template-columns:1fr;gap:24px;}
  .media-row.reverse .media-text{order:0;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:767.98px){
  :root{--sec:52px;}
  .page-hero{padding:112px 0 52px;}
  .feat-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .stat-band{grid-template-columns:1fr;padding:30px 24px;}
  .stat-item{border-left:none;padding-left:0;border-top:1px solid rgba(255,255,255,.14);padding-top:18px;}
  .stat-item:first-child{border-top:none;padding-top:0;}
  .hero-actions .btn{width:100%;}
  .section{padding:var(--sec) 0;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-about{max-width:none;}
  .cta-box{padding:30px 22px;}
}
@media (max-width:575.98px){
  .container{padding:0 18px;}
  .page-hero h1{font-size:clamp(24px,7vw,30px);}
  .brand-text{font-size:15px;}
  .panel{padding:22px 20px;}
  .back-home{padding:18px 20px;}
}
/* 移动端 bottom sheet */
@media (max-width:576px){
  .modal-dialog{margin:0;position:fixed;left:0;right:0;bottom:0;top:auto;}
  .modal-content.custom-modal{border-radius:var(--r-xl) var(--r-xl) 0 0;}
  .custom-modal .modal-body{max-height:56vh;overflow-y:auto;}
}

/* roulang page: category2 */
:root{
  --brand:#5B3DF5;
  --brand-hover:#4429D8;
  --brand-active:#3A22C4;
  --mint:#00D2A8;
  --mint-hover:#00B892;
  --accent:#FF7A45;
  --bg:#F7F5F0;
  --surface:#FFFFFF;
  --dark:#101218;
  --ink:#16181D;
  --ink-2:#6B6F76;
  --inverse:#F5F3EF;
  --line:#E4E0D8;
  --divider:rgba(16,18,24,.08);
  --ok:#1FBF75;
  --warn:#E0A400;
  --err:#E5484D;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:20px;
  --r-xl:28px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,18,24,.06);
  --sh-2:0 12px 32px rgba(16,18,24,.08);
  --sh-3:0 18px 48px rgba(91,61,245,.16);
  --container:1240px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  background:var(--bg);
  color:var(--ink);
  font-size:16px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s ease,opacity .2s ease;}
button{font-family:inherit;}
h1,h2,h3,h4,h5{line-height:1.25;font-weight:700;margin:0;letter-spacing:-.01em;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
::selection{background:rgba(91,61,245,.18);}
.container{max-width:var(--container);padding-left:22px;padding-right:22px;margin:0 auto;width:100%;}

/* ===== Buttons ===== */
.btn-brand{
  background:var(--brand);color:#fff;border:1px solid var(--brand);
  border-radius:var(--r-md);padding:12px 22px;font-size:15px;font-weight:600;
  box-shadow:0 10px 24px rgba(91,61,245,.26);
  transition:background .22s ease,transform .22s ease,box-shadow .22s ease;
}
.btn-brand:hover,.btn-brand:focus{background:var(--brand-hover);border-color:var(--brand-hover);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-3);}
.btn-brand:active{background:var(--brand-active);border-color:var(--brand-active);transform:translateY(0);}
.btn-ghost{
  background:rgba(255,255,255,.06);color:var(--inverse);border:1px solid rgba(255,255,255,.42);
  border-radius:var(--r-md);padding:12px 22px;font-size:15px;font-weight:600;
  transition:background .22s ease,transform .22s ease,border-color .22s ease;
}
.btn-ghost:hover{background:rgba(255,255,255,.16);border-color:rgba(255,255,255,.7);color:#fff;transform:translateY(-2px);}
.btn-outline-ink{
  background:#fff;color:var(--ink);border:1px solid var(--line);
  border-radius:var(--r-md);padding:12px 22px;font-size:15px;font-weight:600;box-shadow:var(--sh-1);
  transition:border-color .22s ease,transform .22s ease,box-shadow .22s ease,color .22s ease;
}
.btn-outline-ink:hover{border-color:rgba(91,61,245,.45);color:var(--brand);transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-brand:focus-visible,.btn-ghost:focus-visible,.btn-outline-ink:focus-visible,
.nav-link:focus-visible,a:focus-visible,button:focus-visible{
  outline:none;box-shadow:0 0 0 4px rgba(91,61,245,.28);
}

/* ===== Header / Nav ===== */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1030;
  padding:14px 0;
  background:rgba(16,18,24,.35);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(255,255,255,.12);
  transition:background .3s ease,padding .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.site-header.is-stuck{
  padding:8px 0;
  background:rgba(16,18,24,.96);
  border-bottom-color:rgba(255,255,255,.08);
  box-shadow:0 10px 32px rgba(16,18,24,.28);
}
.nav-shell{display:flex;align-items:center;gap:20px;width:100%;}
.brand{display:flex;align-items:center;gap:11px;color:var(--inverse);font-weight:700;font-size:18px;letter-spacing:-.01em;}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;display:grid;place-items:center;
  border-radius:12px;background:linear-gradient(135deg,var(--brand) 0%,var(--mint) 100%);
  color:#fff;font-weight:700;font-size:17px;
  box-shadow:0 8px 20px rgba(91,61,245,.35);
}
.brand-text{white-space:nowrap;}
.nav-links{gap:4px;align-items:center;}
.nav-link{
  color:rgba(245,243,239,.82);font-size:15px;font-weight:500;
  padding:10px 15px;border-radius:var(--r-pill);transition:background .2s ease,color .2s ease;
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.12);}
.nav-link.active{color:#fff;background:rgba(91,61,245,.9);box-shadow:0 8px 18px rgba(91,61,245,.3);}
.nav-actions{display:flex;align-items:center;gap:10px;}
.navbar-toggler{
  border:1px solid rgba(255,255,255,.28);border-radius:var(--r-md);
  color:#fff;padding:9px 13px;background:transparent;
}
.navbar-toggler:focus{box-shadow:0 0 0 4px rgba(91,61,245,.3);}
.navbar-toggler i{font-size:17px;}

/* ===== Hero banner ===== */
.page-hero{
  position:relative;
  padding:172px 0 104px;
  color:var(--inverse);
  background-color:var(--dark);
  background-image:
    linear-gradient(115deg,rgba(16,18,24,.95) 0%,rgba(16,18,24,.82) 42%,rgba(16,18,24,.48) 100%),
    url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:64px 64px;
  opacity:.5;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 78%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 78%);
}
.page-hero .container{position:relative;z-index:2;}
.breadcrumb-line{display:flex;align-items:center;gap:9px;font-size:13.5px;color:rgba(245,243,239,.62);margin-bottom:22px;flex-wrap:wrap;}
.breadcrumb-line a{color:rgba(245,243,239,.78);}
.breadcrumb-line a:hover{color:#fff;text-decoration:underline;}
.breadcrumb-line span.sep{opacity:.5;}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 16px;border-radius:var(--r-pill);
  background:rgba(0,210,168,.14);border:1px solid rgba(0,210,168,.42);
  color:#7CF0D6;font-size:13px;font-weight:600;letter-spacing:.02em;margin-bottom:20px;
}
.page-hero h1{
  font-size:clamp(30px,4.2vw,52px);line-height:1.22;max-width:900px;
  letter-spacing:-.02em;
}
.page-hero h1 em{font-style:normal;color:#9FE9DA;}
.hero-sub{
  margin-top:22px;max-width:720px;font-size:clamp(16px,1.35vw,19px);
  color:rgba(245,243,239,.84);line-height:1.75;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:36px;}
.hero-note{margin-top:20px;font-size:13.5px;color:rgba(245,243,239,.6);display:flex;align-items:center;gap:8px;}

/* ===== Stat strip ===== */
.stat-strip{margin-top:-58px;position:relative;z-index:5;}
.stat-panel{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-xl);
  box-shadow:var(--sh-2);padding:34px 30px;
  display:grid;grid-template-columns:repeat(4,1fr);gap:26px;
}
.stat-item{border-left:2px solid rgba(91,61,245,.25);padding-left:20px;}
.stat-item:first-child{border-left-color:var(--mint);}
.stat-num{
  font-size:clamp(32px,3.1vw,44px);font-weight:700;color:var(--brand);
  font-variant-numeric:tabular-nums;line-height:1.1;letter-spacing:-.02em;
}
.stat-num small{font-size:14px;font-weight:600;color:var(--ink-2);margin-left:6px;letter-spacing:0;}
.stat-label{font-size:15px;font-weight:600;margin-top:10px;}
.stat-foot{font-size:12.5px;color:var(--ink-2);margin-top:6px;line-height:1.6;}

/* ===== Sections ===== */
.section{padding:96px 0;}
.section-tight{padding:78px 0;}
.section-white{background:var(--surface);}
.section-dark{background:var(--dark);color:var(--inverse);}
.section-head{max-width:760px;margin-bottom:52px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--brand);
  text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--mint);border-radius:2px;}
.section-head h2{font-size:clamp(24px,2.7vw,36px);letter-spacing:-.02em;}
.section-head p{margin-top:16px;color:var(--ink-2);font-size:16.5px;line-height:1.75;}
.section-dark .section-head p{color:rgba(245,243,239,.72);}
.section-dark .eyebrow{color:#9FE9DA;}

/* ===== Stepper ===== */
.stepper{display:grid;grid-template-columns:repeat(5,1fr);gap:22px;}
.step{
  position:relative;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:26px 22px 24px;box-shadow:var(--sh-1);
  transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--sh-3);border-color:rgba(91,61,245,.3);}
.step:not(:last-child)::after{
  content:"\f105";font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;right:-17px;top:50%;transform:translateY(-50%);
  color:rgba(91,61,245,.38);font-size:16px;z-index:2;
}
.step-num{
  display:inline-grid;place-items:center;width:48px;height:48px;border-radius:15px;
  background:rgba(91,61,245,.09);color:var(--brand);font-weight:700;font-size:16px;
  font-variant-numeric:tabular-nums;margin-bottom:18px;
}
.step h3{font-size:17px;margin-bottom:10px;}
.step p{font-size:14.5px;color:var(--ink-2);line-height:1.7;}

/* ===== Cards ===== */
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:26px;}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;}
.card-lite{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);overflow:hidden;
  transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
  display:flex;flex-direction:column;
}
.card-lite:hover{transform:translateY(-4px);box-shadow:var(--sh-3);border-color:rgba(91,61,245,.3);}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:#EDEAE3;}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.card-lite:hover .card-media img{transform:scale(1.04);}
.card-body{padding:24px 24px 26px;display:flex;flex-direction:column;gap:12px;flex:1;}
.card-body h3{font-size:20px;}
.card-body p{font-size:15px;color:var(--ink-2);line-height:1.72;}
.card-foot{margin-top:auto;padding-top:6px;}
.link-arrow{display:inline-flex;align-items:center;gap:8px;color:var(--brand);font-weight:600;font-size:14.5px;}
.link-arrow i{transition:transform .22s ease;}
.link-arrow:hover i{transform:translateX(4px);}
.card-feature{grid-row:span 2;}
.card-feature .card-media{aspect-ratio:16/10;}

/* ===== Tags / badges ===== */
.tag-row{display:flex;flex-wrap:wrap;gap:8px;}
.badge-soft{
  display:inline-flex;align-items:center;gap:6px;
  background:rgba(0,210,168,.13);color:#00795F;
  border-radius:var(--r-pill);padding:5px 13px;font-size:12.5px;font-weight:600;
}
.badge-warm{background:rgba(255,122,69,.14);color:#B8451A;}
.badge-plain{background:rgba(91,61,245,.1);color:#3E27B8;}
.badge-mono{
  position:absolute;top:14px;left:14px;
  background:rgba(16,18,24,.78);color:#fff;font-size:12px;font-weight:600;
  padding:5px 12px;border-radius:var(--r-pill);backdrop-filter:blur(6px);
}

/* ===== Compare table ===== */
.table-wrap{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);overflow-x:auto;
}
.compare-table{width:100%;border-collapse:collapse;min-width:780px;}
.compare-table th{
  background:var(--dark);color:var(--inverse);font-size:14.5px;font-weight:600;
  padding:18px 20px;text-align:left;white-space:nowrap;
}
.compare-table th:first-child{color:#9FE9DA;}
.compare-table td{
  padding:17px 20px;border-top:1px solid var(--divider);
  font-size:15px;color:var(--ink-2);line-height:1.65;vertical-align:top;
}
.compare-table td:first-child{color:var(--ink);font-weight:600;}
.compare-table tbody tr{transition:background .2s ease;}
.compare-table tbody tr:hover{background:#FBFAF6;}
.cell-ok{color:#0E8A55;font-weight:600;}
.cell-warn{color:#B07C00;font-weight:600;}
.cell-err{color:#C3353A;font-weight:600;}
.table-scroll-hint{font-size:13px;color:var(--ink-2);margin-top:12px;display:none;}

/* ===== Checklist ===== */
.check-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:30px 28px;box-shadow:var(--sh-1);height:100%;
}
.check-card h3{font-size:19px;display:flex;align-items:center;gap:10px;margin-bottom:18px;}
.check-card h3 i{font-size:16px;}
.check-list li{
  display:flex;gap:12px;align-items:flex-start;
  padding:13px 0;border-bottom:1px dashed var(--divider);font-size:15px;color:var(--ink-2);line-height:1.68;
}
.check-list li:last-child{border-bottom:none;padding-bottom:0;}
.check-list li i{margin-top:5px;font-size:13px;flex:0 0 13px;}
.risk i{color:var(--err);}
.safe i{color:var(--ok);}

/* ===== Split block ===== */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:center;}
.split-media{border-radius:var(--r-xl);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-2);}
.split-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;}
.split-list{display:grid;gap:18px;margin-top:26px;}
.split-list li{display:flex;gap:14px;align-items:flex-start;font-size:15.5px;color:var(--ink-2);line-height:1.7;}
.split-list li span.dot{
  flex:0 0 30px;height:30px;border-radius:10px;display:grid;place-items:center;
  background:rgba(91,61,245,.1);color:var(--brand);font-size:13px;font-weight:700;
  font-variant-numeric:tabular-nums;
}

/* ===== FAQ ===== */
.faq-wrap{max-width:900px;}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh-1);margin-bottom:14px;overflow:hidden;
  transition:border-color .22s ease,box-shadow .22s ease;
}
.faq-item:hover{border-color:rgba(91,61,245,.3);box-shadow:var(--sh-2);}
.faq-q{
  width:100%;background:transparent;border:0;text-align:left;
  display:flex;justify-content:space-between;align-items:center;gap:18px;
  padding:20px 22px;font-size:16.5px;font-weight:600;color:var(--ink);cursor:pointer;
}
.faq-q::after{
  content:"+";font-size:22px;font-weight:400;color:var(--brand);line-height:1;
  transition:transform .25s ease;
}
.faq-q[aria-expanded="true"]{color:var(--brand);}
.faq-q[aria-expanded="true"]::after{content:"−";}
.faq-a{padding:0 22px 22px;color:var(--ink-2);font-size:15.5px;line-height:1.78;}

/* ===== CTA ===== */
.cta-section{
  background-color:var(--dark);
  background-image:
    linear-gradient(120deg,rgba(16,18,24,.96) 0%,rgba(16,18,24,.86) 55%,rgba(58,34,196,.72) 100%),
    url('/assets/images/backpic/back-3.png');
  background-size:cover;background-position:center;
  color:var(--inverse);
  padding:96px 0;
}
.cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start;}
.cta-copy h2{font-size:clamp(24px,2.8vw,36px);letter-spacing:-.02em;}
.cta-copy p{margin-top:18px;color:rgba(245,243,239,.78);font-size:16.5px;line-height:1.78;}
.cta-points{margin-top:28px;display:grid;gap:14px;}
.cta-points li{display:flex;gap:12px;align-items:flex-start;font-size:15.5px;color:rgba(245,243,239,.86);}
.cta-points li i{color:var(--mint);margin-top:5px;font-size:14px;}

/* ===== Forms ===== */
.form-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-xl);
  box-shadow:var(--sh-2);padding:32px 30px;color:var(--ink);
}
.form-card h3{font-size:20px;margin-bottom:8px;}
.form-card .form-intro{font-size:14.5px;color:var(--ink-2);margin-bottom:22px;line-height:1.7;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:8px;}
.field .form-control,.field .form-select{
  height:48px;border-radius:var(--r-md);border:1px solid var(--line);
  font-size:15px;color:var(--ink);background:#FCFBF8;padding:0 15px;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.field textarea.form-control{height:auto;min-height:96px;padding:13px 15px;line-height:1.7;resize:vertical;}
.field .form-control:focus,.field .form-select:focus{
  border-color:var(--brand);background:#fff;
  box-shadow:0 0 0 4px rgba(91,61,245,.14);outline:none;
}
.field .form-control::placeholder{color:#A6A9AE;}
.privacy-check{display:flex;gap:11px;align-items:flex-start;margin:18px 0 20px;font-size:13.5px;color:var(--ink-2);line-height:1.65;}
.privacy-check input{margin-top:4px;width:18px;height:18px;flex:0 0 18px;accent-color:var(--brand);}
.privacy-check a{color:var(--brand);font-weight:600;text-decoration:underline;}
.form-submit{width:100%;}
.form-tip{
  display:none;margin-top:14px;padding:12px 16px;border-radius:var(--r-md);
  background:rgba(31,191,117,.1);color:#0E8A55;font-size:14px;border:1px solid rgba(31,191,117,.28);
}
.form-tip.show{display:block;}
.privacy-bar{
  margin-top:20px;padding-top:16px;border-top:1px dashed var(--divider);
  font-size:13px;color:var(--ink-2);line-height:1.7;
}

/* ===== Modal ===== */
.lead-modal{border:none;border-radius:var(--r-xl);overflow:hidden;box-shadow:0 30px 80px rgba(16,18,24,.35);}
.lead-modal .modal-header{border-bottom:1px solid var(--divider);padding:22px 26px;}
.lead-modal .modal-title{font-size:19px;font-weight:700;}
.lead-modal .modal-body{padding:26px;}
.lead-modal .modal-footer{
  border-top:1px solid var(--divider);padding:16px 26px;background:#FBF9F5;
  display:block;
}
.lead-modal .modal-footer p{font-size:13px;color:var(--ink-2);line-height:1.7;margin:0;}
.lead-modal .modal-footer a{color:var(--brand);font-weight:600;text-decoration:underline;}
.btn-close{opacity:.6;}
.btn-close:focus{box-shadow:0 0 0 4px rgba(91,61,245,.24);}

/* ===== Footer ===== */
.site-footer{background:var(--dark);color:var(--inverse);padding:74px 0 30px;border-top:1px solid rgba(255,255,255,.08);}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:40px;padding-bottom:44px;border-bottom:1px solid rgba(255,255,255,.1);}
.footer-brand{display:flex;align-items:center;gap:11px;font-size:17px;font-weight:700;margin-bottom:18px;}
.footer-about{font-size:14.5px;color:rgba(245,243,239,.68);line-height:1.78;max-width:380px;}
.site-footer h4{font-size:15px;margin-bottom:18px;color:#fff;}
.site-footer a{display:block;font-size:14.5px;color:rgba(245,243,239,.72);margin-bottom:11px;}
.site-footer a:hover{color:#7CF0D6;}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:rgba(245,243,239,.72);margin-bottom:12px;line-height:1.7;}
.footer-contact li i{margin-top:5px;color:#7CF0D6;font-size:13px;}
.footer-bottom{
  padding-top:24px;display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-size:13px;color:rgba(245,243,239,.55);
}

/* ===== Responsive ===== */
@media (max-width:1199.98px){
  .stepper{grid-template-columns:repeat(3,1fr);}
  .step:nth-child(3)::after{display:none;}
  .stat-panel{grid-template-columns:repeat(2,1fr);gap:24px;}
}
@media (max-width:991.98px){
  .section{padding:64px 0;}
  .section-tight{padding:56px 0;}
  .site-header{padding:10px 0;}
  .site-header .navbar-collapse{
    background:rgba(16,18,24,.97);border:1px solid rgba(255,255,255,.1);
    border-radius:var(--r-lg);margin-top:14px;padding:14px;
    -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
  }
  .nav-links{align-items:stretch;gap:2px;}
  .nav-link{padding:13px 14px;border-radius:var(--r-md);}
  .nav-actions{margin-top:12px;padding-top:12px;border-top:1px solid rgba(255,255,255,.1);width:100%;}
  .nav-actions .btn-brand{width:100%;}
  .page-hero{padding:140px 0 88px;}
  .stepper{grid-template-columns:1fr;gap:18px;}
  .step:not(:last-child)::after{display:none;}
  .step{border-left:3px solid rgba(91,61,245,.35);}
  .grid-2,.grid-3{grid-template-columns:1fr;gap:20px;}
  .split{grid-template-columns:1fr;gap:34px;}
  .cta-grid{grid-template-columns:1fr;gap:36px;}
  .cta-section{padding:68px 0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
}
@media (max-width:767.98px){
  body{font-size:15.5px;}
  .page-hero{padding:126px 0 76px;}
  .page-hero h1{font-size:clamp(26px,6.4vw,34px);}
  .hero-actions .btn-brand,.hero-actions .btn-ghost{width:100%;justify-content:center;text-align:center;}
  .stat-strip{margin-top:-42px;}
  .stat-panel{grid-template-columns:1fr;padding:26px 22px;}
  .stat-item{border-left:none;border-top:1px solid var(--divider);padding-left:0;padding-top:18px;}
  .stat-item:first-child{border-top:none;padding-top:0;}
  .section-head{margin-bottom:34px;}
  .table-scroll-hint{display:block;}
  .split-media img{aspect-ratio:16/10;}
  .cta-points{margin-top:22px;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer-bottom{flex-direction:column;}
  .lead-modal .modal-dialog{margin:0;position:fixed;left:0;right:0;bottom:0;top:auto;max-width:none;}
  .lead-modal{border-radius:var(--r-xl) var(--r-xl) 0 0;}
}
@media (max-width:519.98px){
  .container{padding-left:16px;padding-right:16px;}
  .section{padding:48px 0;}
  .page-hero{padding:112px 0 62px;}
  .brand-text{font-size:15.5px;}
  .brand-mark{width:34px;height:34px;flex:0 0 34px;font-size:15px;}
  .form-card{padding:24px 20px;}
  .card-body{padding:20px;}
  .check-card{padding:24px 20px;}
  .hero-note{font-size:12.5px;}
}