/* roulang page: index */
:root{
  --c-brand-900:#1B1039;
  --c-brand-700:#4B2ED8;
  --c-brand-500:#6C4BFF;
  --c-brand-200:#DCD3FF;
  --c-brand-050:#F0ECFF;
  --c-accent-500:#22D3C5;
  --c-accent-050:#E4FBF8;
  --c-hot-500:#FF7A2F;
  --c-hot-050:#FFF1E8;
  --c-ink-900:#16121F;
  --c-ink-600:#5A5566;
  --c-ink-400:#8E8A99;
  --c-line:#E8E4F2;
  --c-bg:#F7F5FC;
  --c-surface:#FFFFFF;
  --g-brand:linear-gradient(120deg,#6C4BFF 0%,#9B5CFF 52%,#22D3C5 100%);
  --g-soft:linear-gradient(180deg,rgba(108,75,255,.12),rgba(34,211,197,.06));
  --sh-1:0 1px 2px rgba(22,18,31,.04),0 10px 28px rgba(76,46,216,.07);
  --sh-2:0 18px 44px rgba(76,46,216,.16);
  --sh-btn:0 10px 26px rgba(108,75,255,.32);
  --r-lg:24px;
  --r-md:20px;
  --r-btn:14px;
  --r-input:12px;
  --r-img:16px;
  --t:200ms cubic-bezier(.2,.7,.3,1);
  --bs-body-font-family:'Noto Sans SC','PingFang SC','Microsoft YaHei','Source Han Sans SC',system-ui,-apple-system,sans-serif;
  --bs-body-color:#16121F;
  --bs-border-color:#E8E4F2;
  --bs-link-color:#4B2ED8;
  --bs-link-hover-color:#6C4BFF;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:'Noto Sans SC','PingFang SC','Microsoft YaHei','Source Han Sans SC',system-ui,-apple-system,sans-serif;
  font-size:16.5px;
  line-height:1.85;
  color:var(--c-ink-900);
  background:var(--c-bg);
  font-variant-numeric:tabular-nums;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:var(--c-brand-700);text-decoration:none;transition:color var(--t),background-color var(--t),border-color var(--t)}
a:hover{color:var(--c-brand-500)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;color:var(--c-ink-900);font-weight:800;letter-spacing:.1px}
p{margin:0}
button,input,select,textarea{font-family:inherit;font-size:inherit}
:focus-visible{outline:3px solid rgba(108,75,255,.35);outline-offset:2px}
.container{max-width:1200px;padding-left:24px;padding-right:24px;margin-right:auto;margin-left:auto}
.section{padding:96px 0}
.section-alt{background:var(--c-surface)}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:700;letter-spacing:1px;color:var(--c-brand-500);background:var(--c-brand-050);border-radius:999px;padding:6px 14px;margin-bottom:14px}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:40px}
.section-head h2{font-size:clamp(23px,2.6vw,34px);line-height:1.25}
.section-head p{color:var(--c-ink-600);font-size:16px;max-width:640px;margin-top:10px}
.link-more{display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:700;color:var(--c-brand-700)}
.link-more i{transition:transform var(--t)}
.link-more:hover i{transform:translateX(4px)}
.tag{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;font-weight:700;color:var(--c-brand-700);background:var(--c-brand-050);border-radius:999px;padding:5px 12px}
.tag-sm{font-size:11.5px;padding:3px 9px}
.tag-hot{color:var(--c-hot-500);background:var(--c-hot-050)}
.card{border:1px solid var(--c-line);border-radius:var(--r-md);background:var(--c-surface);box-shadow:var(--sh-1);transition:transform var(--t),box-shadow var(--t),border-color var(--t)}
.card:hover{box-shadow:var(--sh-2);transform:translateY(-4px);border-color:var(--c-brand-200)}
.card-body{padding:24px}
.btn{border-radius:var(--r-btn);font-weight:700;font-size:15.5px;padding:12px 24px;border:1px solid transparent;transition:var(--t);display:inline-flex;align-items:center;justify-content:center;gap:8px}
.btn-primary{background-image:var(--g-brand);background-size:180% 100%;background-position:0 0;color:#fff;box-shadow:var(--sh-btn);border:0}
.btn-primary:hover,.btn-primary:focus{color:#fff;background-position:100% 0;transform:translateY(-2px);box-shadow:0 16px 34px rgba(108,75,255,.4)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 6px 16px rgba(108,75,255,.3)}
.btn-outline-brand{background:var(--c-surface);border:1.5px solid var(--c-brand-500);color:var(--c-brand-700)}
.btn-outline-brand:hover{background:var(--c-brand-050);color:var(--c-brand-700);transform:translateY(-2px)}
.btn-ghost{background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.3);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.26);color:#fff}
.btn-sm{padding:9px 16px;font-size:14px}
.btn-lg{padding:14px 28px;font-size:16px}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:1030;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid var(--c-line)}
.site-nav{min-height:72px;padding:0}
.navbar-brand{display:flex;align-items:center;gap:12px;padding:0;margin-right:28px}
.brand-mark{width:40px;height:40px;border-radius:14px;background-image:var(--g-brand);display:grid;place-items:center;color:#fff;font-size:17px;box-shadow:0 8px 20px rgba(108,75,255,.32);flex:0 0 auto}
.brand-text{font-size:18px;font-weight:800;line-height:1.2;white-space:nowrap}
.brand-text .b1{color:var(--c-brand-500)}
.brand-text .b2{color:var(--c-ink-900)}
.site-nav .nav-link{position:relative;font-size:15.5px;font-weight:600;color:var(--c-ink-600);padding:9px 16px;border-radius:999px;transition:var(--t)}
.site-nav .nav-link:hover{color:var(--c-brand-500);background:var(--c-brand-050)}
.site-nav .nav-link.active{color:var(--c-brand-500);background:var(--c-brand-050)}
.site-nav .nav-link.active::after{content:"";position:absolute;left:16px;right:16px;bottom:1px;height:3px;border-radius:3px;background-image:var(--g-brand)}
.nav-right{display:flex;align-items:center;gap:10px}
.status-pill{display:inline-flex;align-items:center;gap:7px;font-size:12.5px;color:var(--c-ink-600);background:var(--c-surface);border:1px solid var(--c-line);border-radius:999px;padding:6px 12px;white-space:nowrap}
.status-dot{width:8px;height:8px;border-radius:50%;background:var(--c-accent-500);box-shadow:0 0 0 3px rgba(34,211,197,.18);animation:pulse 2.4s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 3px rgba(34,211,197,.18)}50%{box-shadow:0 0 0 6px rgba(34,211,197,.06)}100%{box-shadow:0 0 0 3px rgba(34,211,197,.18)}}
.promo-pill{display:inline-flex;align-items:center;gap:7px;font-size:12.5px;font-weight:700;color:var(--c-hot-500);background:var(--c-hot-050);border:1px solid rgba(255,122,47,.42);border-radius:999px;padding:6px 12px;white-space:nowrap}
.promo-pill b{font-variant-numeric:tabular-nums;letter-spacing:.5px}
.nav-toggle{width:44px;height:44px;border-radius:14px;border:1px solid var(--c-line);background:var(--c-surface);color:var(--c-brand-700);display:grid;place-items:center;font-size:17px}
.offcanvas{width:86vw;max-width:360px;border-left:1px solid var(--c-line)}
.offcanvas-header{border-bottom:1px solid var(--c-line);padding:18px 20px}
.offcanvas-body{padding:20px}
.drawer-link{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;border-radius:14px;font-weight:600;color:var(--c-ink-900);background:var(--c-surface);border:1px solid var(--c-line);margin-bottom:10px}
.drawer-link:hover,.drawer-link.active{background:var(--c-brand-050);color:var(--c-brand-700);border-color:var(--c-brand-200)}
.drawer-link i{color:var(--c-ink-400)}

/* ---------- Hero ---------- */
.hero{position:relative;padding:76px 0 88px;background:var(--c-surface);overflow:hidden}
.hero::before{content:"";position:absolute;top:-220px;right:-140px;width:620px;height:620px;border-radius:50%;background:radial-gradient(circle at center,rgba(108,75,255,.22),rgba(108,75,255,0) 68%);pointer-events:none}
.hero::after{content:"";position:absolute;left:-150px;bottom:-190px;width:460px;height:460px;border-radius:50%;background:radial-gradient(circle at center,rgba(34,211,197,.18),rgba(34,211,197,0) 70%);pointer-events:none}
.hero .container{position:relative;z-index:2}
.hero-line{position:absolute;left:0;right:0;bottom:0;height:3px;background-image:var(--g-brand);opacity:.9}
.hero-tag{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;color:var(--c-brand-700);background:var(--c-brand-050);border:1px solid var(--c-brand-200);border-radius:999px;padding:7px 16px;margin-bottom:20px}
.hero h1{font-size:clamp(30px,4.2vw,50px);line-height:1.18;font-weight:800;margin-bottom:18px}
.hero h1 span{position:relative;display:inline-block}
.hero h1 span::after{content:"";position:absolute;left:0;right:0;bottom:4px;height:9px;border-radius:5px;background-image:var(--g-brand);opacity:.22;z-index:-1}
.hero-sub{font-size:17.5px;color:var(--c-ink-600);max-width:560px;margin-bottom:30px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:36px}
.hero-stats{display:flex;flex-wrap:wrap;gap:14px}
.stat-chip{display:flex;align-items:center;gap:12px;padding:14px 18px;border-radius:18px;border:1px solid transparent;background-image:linear-gradient(#fff,#fff),linear-gradient(120deg,rgba(108,75,255,.55),rgba(34,211,197,.55));background-origin:border-box;background-clip:padding-box,border-box;box-shadow:var(--sh-1)}
.stat-chip b{font-size:24px;font-weight:800;color:var(--c-brand-700);line-height:1.1;font-variant-numeric:tabular-nums}
.stat-chip em{display:block;font-style:normal;font-size:13px;color:var(--c-ink-600);line-height:1.5}
.hero-visual{position:relative;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-2);aspect-ratio:4/3}
.hero-visual img{width:100%;height:100%;object-fit:cover}
.hero-visual::after{content:"";position:absolute;inset:0;background:linear-gradient(140deg,rgba(27,16,57,.8) 4%,rgba(75,46,216,.44) 48%,rgba(34,211,197,.2) 100%)}
.hero-float-card{position:absolute;left:18px;right:18px;bottom:18px;z-index:3;background:rgba(255,255,255,.96);border-radius:18px;padding:16px 18px;box-shadow:0 14px 34px rgba(22,18,31,.18);backdrop-filter:blur(6px)}
.hero-float-card .fl-row{display:flex;justify-content:space-between;align-items:center;gap:12px;font-size:13.5px;color:var(--c-ink-600)}
.hero-float-card .fl-row + .fl-row{margin-top:8px;padding-top:8px;border-top:1px dashed var(--c-line)}
.hero-float-card strong{color:var(--c-ink-900);font-weight:700}

/* ---------- 服务 ---------- */
.svc-card{height:100%;overflow:hidden;display:flex;flex-direction:column}
.svc-card .card-body{flex:1 1 auto;display:flex;flex-direction:column}
.svc-cover{aspect-ratio:16/9;overflow:hidden}
.svc-cover img{width:100%;height:100%;object-fit:cover;transition:transform 400ms cubic-bezier(.2,.7,.3,1)}
.svc-card:hover .svc-cover img{transform:scale(1.04)}
.svc-card h3{font-size:20px;line-height:1.4;margin:14px 0 10px}
.svc-card p{color:var(--c-ink-600);font-size:15.5px}
.svc-card .link-more{margin-top:auto;padding-top:16px}
.svc-stack{display:flex;flex-direction:column;gap:24px;height:100%}
.svc-stack .svc-card{flex:1 1 0}
.svc-mini{display:flex;gap:18px;padding:24px;align-items:flex-start;height:100%}
.svc-icon{width:44px;height:44px;border-radius:14px;background:var(--c-brand-050);color:var(--c-brand-500);display:grid;place-items:center;font-size:18px;flex:0 0 auto}
.svc-mini .svc-content{flex:1 1 auto;display:flex;flex-direction:column}
.svc-mini h3{font-size:18.5px;margin-bottom:8px}
.svc-mini p{font-size:15px;color:var(--c-ink-600)}
.svc-mini .link-more{margin-top:12px;font-size:14px}

/* ---------- 数据带 ---------- */
.data-band{position:relative;background:var(--c-brand-900);color:#fff;padding:72px 0;overflow:hidden}
.data-band .band-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-2.webp');background-size:cover;background-position:center;opacity:.18}
.data-band::after{content:"";position:absolute;right:-120px;top:-140px;width:520px;height:520px;border-radius:50%;background:radial-gradient(circle at center,rgba(108,75,255,.55),rgba(27,16,57,0) 70%)}
.data-band .container{position:relative;z-index:2}
.data-band h2{color:#fff;font-size:clamp(22px,2.4vw,30px);margin-bottom:10px}
.data-band .band-lead{color:rgba(255,255,255,.78);font-size:15.5px;max-width:640px;margin-bottom:36px}
.data-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.data-cell{padding:8px 26px;border-left:1px solid rgba(255,255,255,.14)}
.data-cell:first-child{border-left:0;padding-left:0}
.data-cell b{display:block;font-size:30px;font-weight:800;line-height:1.1;color:#fff;font-variant-numeric:tabular-nums}
.data-cell strong{display:block;font-size:15px;font-weight:700;margin:10px 0 6px;color:#fff}
.data-cell span{display:block;font-size:13.5px;color:rgba(255,255,255,.74);line-height:1.7}

/* ---------- 案例 ---------- */
.case-card{overflow:hidden;height:100%;display:flex;flex-direction:column}
.case-media{aspect-ratio:16/9;overflow:hidden}
.case-media img{width:100%;height:100%;object-fit:cover;transition:transform 400ms cubic-bezier(.2,.7,.3,1)}
.case-card:hover .case-media img{transform:scale(1.04)}
.case-card .card-body{display:flex;flex-direction:column;flex:1 1 auto}
.case-card h3{font-size:20px;margin:12px 0 10px}
.case-card p{color:var(--c-ink-600);font-size:15.5px;margin-bottom:18px}
.result-chip{align-self:flex-start;margin-top:auto;display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;color:var(--c-accent-050);background:rgba(34,211,197,.16);border:1px solid rgba(34,211,197,.45);border-radius:999px;padding:7px 14px}
.case-narrow{display:flex;gap:16px;padding:20px;align-items:center;height:100%}
.case-narrow .thumb{width:96px;height:96px;border-radius:var(--r-img);overflow:hidden;flex:0 0 auto}
.case-narrow .thumb img{width:100%;height:100%;object-fit:cover}
.case-narrow h3{font-size:17px;margin:10px 0 6px}
.case-narrow p{font-size:14.5px;color:var(--c-ink-600)}
.case-stack{display:flex;flex-direction:column;gap:24px;height:100%}
.case-stack > *{flex:1 1 0}

/* ---------- 方案 / 步骤 ---------- */
.plan-sticky{position:sticky;top:96px}
.plan-sticky h2{font-size:clamp(23px,2.6vw,34px);line-height:1.25;margin-bottom:16px}
.plan-sticky p{color:var(--c-ink-600)}
.step-list{position:relative;padding-left:6px}
.step{position:relative;display:flex;gap:20px;padding:0 0 28px 0}
.step:last-child{padding-bottom:0}
.step::before{content:"";position:absolute;left:23px;top:52px;bottom:4px;width:2px;background:linear-gradient(180deg,var(--c-brand-200),rgba(232,228,242,0))}
.step:last-child::before{display:none}
.step-num{width:48px;height:48px;flex:0 0 auto;border-radius:16px;border:1px solid transparent;background-image:linear-gradient(#fff,#fff),linear-gradient(120deg,rgba(108,75,255,.6),rgba(34,211,197,.6));background-origin:border-box;background-clip:padding-box,border-box;display:grid;place-items:center;font-weight:800;color:var(--c-brand-700);font-size:17px;position:relative;z-index:2}
.step-body h3{font-size:18px;margin-bottom:6px}
.step-body p{font-size:15px;color:var(--c-ink-600)}
.compare-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);padding:26px;box-shadow:var(--sh-1)}
.compare-card h3{font-size:17.5px;margin-bottom:18px}
.compare-row{display:flex;align-items:flex-start;gap:12px;padding:14px 0;border-top:1px dashed var(--c-line)}
.compare-row:first-of-type{border-top:0;padding-top:0}
.compare-row p{font-size:14.5px;color:var(--c-ink-600);margin-top:6px}
.mini-badge{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;font-weight:700;border-radius:999px;padding:5px 12px}
.mini-badge.ok{color:#0E8E84;background:var(--c-accent-050);border:1px solid rgba(34,211,197,.5)}
.mini-badge.alt{color:var(--c-brand-700);background:var(--c-brand-050);border:1px solid var(--c-brand-200)}

/* ---------- 资讯 ---------- */
.news-feature{overflow:hidden;height:100%;display:flex;flex-direction:column}
.news-feature-media{display:block;aspect-ratio:16/9;overflow:hidden}
.news-feature-media img{width:100%;height:100%;object-fit:cover;transition:transform 400ms cubic-bezier(.2,.7,.3,1)}
.news-feature:hover .news-feature-media img{transform:scale(1.04)}
.news-feature-title{font-size:22px;line-height:1.45;margin:14px 0 12px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-feature-title a{color:var(--c-ink-900)}
.news-feature-title a:hover{color:var(--c-brand-500)}
.news-feature-text{color:var(--c-ink-600);font-size:15.5px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.news-feature-meta{margin-top:auto;padding-top:18px;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--c-ink-400);border-top:1px solid var(--c-line)}
.news-list{display:flex;flex-direction:column;gap:14px;height:100%}
.news-item{display:flex;gap:16px;align-items:flex-start;padding:16px 18px;border:1px solid var(--c-line);border-radius:var(--r-img);background:var(--c-surface);box-shadow:var(--sh-1);transition:var(--t)}
.news-item:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--c-brand-200)}
.news-date{flex:0 0 auto;font-size:12px;color:var(--c-ink-400);background:var(--c-brand-050);border-radius:10px;padding:6px 10px;font-weight:700;font-variant-numeric:tabular-nums}
.news-body{display:block;min-width:0}
.news-title{display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;font-size:16px;font-weight:700;color:var(--c-ink-900)}
.news-item:hover .news-title{color:var(--c-brand-500)}
.news-sub{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:13px;color:var(--c-ink-400);margin-top:6px}
.empty-state{text-align:center;padding:56px 24px;border:1px dashed var(--c-brand-200);border-radius:var(--r-lg);background:var(--c-surface)}
.empty-state i{font-size:34px;color:var(--c-brand-200)}
.empty-state p{margin:14px 0 20px;color:var(--c-ink-600)}

/* ---------- FAQ ---------- */
.faq-side h2{font-size:clamp(23px,2.6vw,34px);line-height:1.25;margin-bottom:14px}
.faq-side p{color:var(--c-ink-600);margin-bottom:22px}
.faq-help{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);padding:24px;box-shadow:var(--sh-1)}
.faq-help h3{font-size:17px;margin-bottom:8px}
.faq-help p{font-size:14.5px;color:var(--c-ink-600);margin-bottom:16px}
.accordion-item{border:1px solid var(--c-line);border-radius:var(--r-img);background:var(--c-brand-050);margin-bottom:14px;overflow:hidden;transition:var(--t)}
.accordion-item:has(.accordion-button:not(.collapsed)){background:var(--c-surface);border-left:4px solid var(--c-brand-500);box-shadow:var(--sh-2)}
.accordion-button{background:transparent;color:var(--c-ink-900);font-size:17px;font-weight:700;padding:20px 56px 20px 22px;box-shadow:none;border:0}
.accordion-button:not(.collapsed){background:transparent;color:var(--c-brand-700)}
.accordion-button::after{display:none}
.accordion-button .faq-mark{position:absolute;right:20px;top:50%;transform:translateY(-50%);width:26px;height:26px;border-radius:9px;background:var(--c-surface);border:1px solid var(--c-line);display:grid;place-items:center;font-size:12px;color:var(--c-brand-500)}
.accordion-button:not(.collapsed) .faq-mark{background-image:var(--g-brand);color:#fff;border-color:transparent}
.accordion-body{padding:0 22px 22px;font-size:15.5px;line-height:1.85;color:var(--c-ink-600)}

/* ---------- CTA ---------- */
.cta-band{position:relative;padding:88px 0;background-image:var(--g-soft);background-color:var(--c-surface);overflow:hidden}
.cta-band::before{content:"";position:absolute;right:-160px;bottom:-180px;width:520px;height:520px;border-radius:50%;background:radial-gradient(circle at center,rgba(108,75,255,.2),rgba(108,75,255,0) 70%)}
.cta-band .container{position:relative;z-index:2}
.cta-band h2{font-size:clamp(23px,2.6vw,32px);line-height:1.3;margin-bottom:12px}
.cta-band .cta-lead{color:var(--c-ink-600);margin-bottom:26px}
.form-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);padding:30px;box-shadow:var(--sh-1)}
.form-label{font-size:13.5px;font-weight:700;color:var(--c-ink-600);margin-bottom:8px;display:block}
.form-label .req{color:var(--c-hot-500);margin-left:3px}
.form-control,.form-select{height:48px;border-radius:var(--r-input);border:1px solid var(--c-line);background:var(--c-surface);color:var(--c-ink-900);font-size:15px;padding:0 16px;transition:var(--t)}
textarea.form-control{height:auto;padding:14px 16px;line-height:1.7;resize:vertical}
.form-control:focus,.form-select:focus{border-color:var(--c-brand-500);box-shadow:0 0 0 3px rgba(108,75,255,.16);background:var(--c-brand-050)}
.form-control::placeholder{color:var(--c-ink-400)}
.contact-info{background:var(--c-brand-900);border-radius:var(--r-lg);padding:30px;color:#fff;height:100%;position:relative;overflow:hidden}
.contact-info::after{content:"";position:absolute;right:-80px;top:-90px;width:260px;height:260px;border-radius:50%;background:radial-gradient(circle at center,rgba(108,75,255,.6),rgba(27,16,57,0) 70%)}
.contact-info h3{color:#fff;font-size:19px;margin-bottom:18px;position:relative;z-index:2}
.contact-list{position:relative;z-index:2}
.contact-list li{display:flex;gap:12px;align-items:flex-start;padding:12px 0;border-bottom:1px solid rgba(255,255,255,.12);font-size:14.5px;color:rgba(255,255,255,.85)}
.contact-list li:last-child{border-bottom:0}
.contact-list i{color:var(--c-accent-500);margin-top:4px}
.qr-card{margin-top:20px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);border-radius:var(--r-img);padding:18px;display:flex;gap:16px;align-items:center;position:relative;z-index:2}
.qr-box{width:76px;height:76px;border-radius:12px;background:#fff;display:grid;place-items:center;color:var(--c-brand-700);font-size:26px;flex:0 0 auto}
.qr-card p{font-size:13.5px;color:rgba(255,255,255,.8)}

/* ---------- 页脚 ---------- */
.site-footer{position:relative;background:var(--c-brand-900);color:rgba(255,255,255,.82);padding:72px 0 0}
.site-footer::before{content:"";position:absolute;left:0;right:0;top:0;height:3px;background-image:var(--g-brand)}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.footer-brand .brand-text .b1{color:var(--c-brand-200)}
.footer-brand .brand-text .b2{color:#fff}
.footer-desc{font-size:14.5px;color:rgba(255,255,255,.72);margin-bottom:18px}
.footer-title{color:#fff;font-size:15.5px;font-weight:700;margin-bottom:18px}
.footer-links li{margin-bottom:11px}
.footer-links a{color:rgba(255,255,255,.74);font-size:14.5px}
.footer-links a:hover{color:#fff}
.footer-bottom{margin-top:56px;border-top:1px solid rgba(255,255,255,.12);padding:22px 0;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.62)}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 520ms cubic-bezier(.2,.7,.3,1),transform 520ms cubic-bezier(.2,.7,.3,1)}
.reveal.is-in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .section{padding:76px 0}
  .data-grid{grid-template-columns:repeat(2,1fr);row-gap:32px}
  .data-cell:nth-child(3){border-left:0;padding-left:0}
}
@media (max-width:991.98px){
  .section{padding:64px 0}
  .hero{padding:56px 0 68px}
  .hero-visual{margin-top:36px;aspect-ratio:16/10}
  .plan-sticky{position:static;margin-bottom:28px}
  .site-nav{min-height:60px}
  .navbar-brand .brand-text{font-size:16.5px}
  .brand-mark{width:36px;height:36px;border-radius:12px}
}
@media (max-width:767.98px){
  .section{padding:52px 0}
  body{font-size:16px;line-height:1.8}
  .container{padding-left:18px;padding-right:18px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .hero-stats{flex-direction:column}
  .stat-chip{width:100%}
  .data-cell{padding:6px 18px}
  .data-cell b{font-size:24px}
  .case-narrow{flex-direction:column;align-items:flex-start}
  .case-narrow .thumb{width:100%;height:150px}
  .section-head{margin-bottom:28px}
  .form-card,.contact-info,.compare-card{padding:22px}
}
@media (max-width:575.98px){
  .data-grid{grid-template-columns:1fr}
  .data-cell{border-left:0;padding:12px 0;border-top:1px solid rgba(255,255,255,.14)}
  .data-cell:first-child{border-top:0}
  .hero h1{font-size:28px}
  .news-item{flex-direction:column;gap:10px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* roulang page: article */
:root{
  --c-brand-900:#1B1039;--c-brand-700:#4B2ED8;--c-brand-500:#6C4BFF;--c-brand-200:#DCD3FF;--c-brand-050:#F0ECFF;
  --c-accent-500:#22D3C5;--c-accent-050:#E4FBF8;
  --c-hot-500:#FF7A2F;--c-hot-050:#FFF1E8;
  --c-ink-900:#16121F;--c-ink-600:#5A5566;--c-ink-400:#8E8A99;
  --c-line:#E8E4F2;--c-bg:#F7F5FC;--c-surface:#FFFFFF;
  --g-brand:linear-gradient(120deg,#6C4BFF 0%,#9B5CFF 48%,#22D3C5 100%);
  --g-soft:linear-gradient(180deg,rgba(108,75,255,.12) 0%,rgba(34,211,197,.06) 100%);
  --sh-1:0 1px 2px rgba(22,18,31,.04),0 10px 28px rgba(76,46,216,.07);
  --sh-2:0 18px 44px rgba(76,46,216,.16);
  --sh-btn:0 10px 26px rgba(108,75,255,.32);
  --r-lg:24px;--r-md:20px;--r-btn:14px;--r-in:12px;--r-img:16px;
  --ease:200ms cubic-bezier(.2,.7,.3,1);
  --bs-body-color:#5A5566;--bs-body-bg:#F7F5FC;--bs-primary:#6C4BFF;--bs-border-color:#E8E4F2;
  --bs-link-color:#4B2ED8;--bs-link-hover-color:#6C4BFF;
  --bs-font-sans-serif:'Noto Sans SC','PingFang SC','Microsoft YaHei','Source Han Sans SC',system-ui,-apple-system,sans-serif;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;font-family:var(--bs-font-sans-serif);font-size:16.5px;line-height:1.85;color:var(--c-ink-600);
  background:var(--c-bg);font-variant-numeric:tabular-nums;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--c-brand-700);text-decoration:none;transition:color var(--ease);}
a:hover{color:var(--c-brand-500);}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding-left:0;list-style:none;}
button,input,textarea,select{font-family:inherit;font-size:inherit;}
:focus-visible{outline:3px solid rgba(108,75,255,.35);outline-offset:2px;border-radius:6px;}
.container{max-width:1200px;padding-left:24px;padding-right:24px;}
.narrow{max-width:980px;}

/* ---------- header / nav ---------- */
.site-header{position:sticky;top:0;z-index:1040;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--c-line);}
.site-nav{padding:0;min-height:72px;}
.site-nav .container{min-height:72px;display:flex;align-items:center;gap:18px;}
.navbar-brand{display:flex;align-items:center;gap:10px;padding:0;margin:0;}
.brand-mark{
  width:40px;height:40px;border-radius:14px;background:var(--g-brand);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;font-size:17px;flex:0 0 auto;
  box-shadow:0 6px 16px rgba(108,75,255,.28);
}
.brand-text{display:flex;align-items:baseline;font-size:18px;font-weight:800;line-height:1.2;letter-spacing:.2px;}
.brand-text .b1{color:var(--c-brand-500);}
.brand-text .b2{color:var(--c-ink-900);}
.site-nav .nav-link{
  font-size:15px;font-weight:600;color:var(--c-ink-600);padding:9px 14px;border-radius:999px;
  position:relative;transition:all var(--ease);
}
.site-nav .nav-link:hover{background:var(--c-brand-050);color:var(--c-brand-500);}
.site-nav .nav-link.active{background:var(--c-brand-050);color:var(--c-brand-500);}
.site-nav .nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:3px;border-radius:3px;background:var(--g-brand);
}
.nav-right{display:flex;align-items:center;gap:12px;}
.status-pill{
  align-items:center;gap:7px;font-size:13px;color:var(--c-ink-600);background:var(--c-accent-050);
  border:1px solid rgba(34,211,197,.35);border-radius:999px;padding:6px 12px;
}
.status-dot{width:8px;height:8px;border-radius:50%;background:var(--c-accent-500);box-shadow:0 0 0 4px rgba(34,211,197,.18);}
.promo-pill{
  align-items:center;gap:6px;font-size:13px;color:var(--c-hot-500);background:var(--c-hot-050);
  border:1px solid rgba(255,122,47,.4);border-radius:999px;padding:6px 12px;
}
.promo-pill b{font-variant-numeric:tabular-nums;}
.nav-toggle{
  width:42px;height:42px;border-radius:12px;border:1px solid var(--c-line);background:#fff;color:var(--c-ink-900);
  display:inline-flex;align-items:center;justify-content:center;font-size:17px;
}
.offcanvas.drawer{width:86vw;max-width:360px;}
.drawer .drawer-link{display:block;padding:13px 6px;font-size:16px;font-weight:600;color:var(--c-ink-900);border-bottom:1px solid var(--c-line);}
.drawer .drawer-link.active{color:var(--c-brand-500);}
.drawer .status-pill,.drawer .promo-pill{display:inline-flex;margin-top:14px;}

/* ---------- buttons ---------- */
.btn{border-radius:var(--r-btn);font-weight:700;transition:all var(--ease);border-width:1px;}
.btn-primary{
  background-image:var(--g-brand);background-size:160% 160%;background-position:0 0;border:none;color:#fff;
  box-shadow:var(--sh-btn);padding:12px 22px;display:inline-flex;align-items:center;gap:8px;justify-content:center;
}
.btn-primary:hover,.btn-primary:focus{background-position:100% 0;transform:translateY(-2px);box-shadow:0 16px 34px rgba(108,75,255,.4);color:#fff;}
.btn-primary:active{transform:translateY(1px);box-shadow:0 6px 16px rgba(108,75,255,.3);}
.btn-outline-brand{
  background:#fff;border:1.5px solid var(--c-brand-500);color:var(--c-brand-500);padding:11px 20px;
  display:inline-flex;align-items:center;gap:8px;justify-content:center;
}
.btn-outline-brand:hover{background:var(--c-brand-050);color:var(--c-brand-700);transform:translateY(-2px);}
.btn-ghost{background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.3);color:#fff;padding:11px 20px;display:inline-flex;gap:8px;align-items:center;}
.btn-ghost:hover{background:rgba(255,255,255,.26);color:#fff;}
.btn-sm{padding:9px 16px;font-size:14px;border-radius:12px;}

/* ---------- page head ---------- */
.page-head{padding:40px 0 32px;background:var(--g-soft);border-bottom:1px solid var(--c-line);}
.crumb{font-size:13px;color:var(--c-ink-400);margin-bottom:12px;}
.crumb a{color:var(--c-ink-400);}
.crumb a:hover{color:var(--c-brand-500);}
.crumb .sep{margin:0 7px;color:#C9C3D8;}
.crumb .cur{color:var(--c-ink-900);}
.chip-cat{
  display:inline-flex;align-items:center;gap:6px;font-size:12.5px;font-weight:700;color:var(--c-brand-700);
  background:var(--c-brand-050);border:1px solid var(--c-brand-200);border-radius:999px;padding:5px 12px;
}
.article-h1{
  font-size:clamp(26px,3.4vw,40px);line-height:1.28;font-weight:800;color:var(--c-ink-900);
  margin:14px 0 16px;letter-spacing:-.2px;max-width:900px;
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--c-ink-400);}
.meta-chip{
  display:inline-flex;align-items:center;gap:6px;background:#fff;border:1px solid var(--c-line);
  border-radius:999px;padding:5px 12px;color:var(--c-ink-600);font-size:12.5px;font-weight:600;
}
.meta-chip i{color:var(--c-brand-500);}
.share-row{display:flex;gap:8px;}
.icon-btn{
  width:36px;height:36px;border-radius:11px;border:1px solid var(--c-line);background:#fff;color:var(--c-ink-600);
  display:inline-flex;align-items:center;justify-content:center;transition:all var(--ease);
}
.icon-btn:hover{border-color:var(--c-brand-200);background:var(--c-brand-050);color:var(--c-brand-500);}

/* ---------- article body ---------- */
.article-wrap{padding:44px 0 72px;}
.article-hero-img{border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);margin-bottom:32px;aspect-ratio:21/9;background:#EDE9FA;}
.article-hero-img img{width:100%;height:100%;object-fit:cover;}
.article-body{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);padding:40px;
  box-shadow:var(--sh-1);font-size:17px;line-height:1.9;color:#3B3646;max-width:820px;
}
.article-body>*+*{margin-top:1.1em;}
.article-body h2{
  font-size:clamp(21px,2.2vw,26px);font-weight:800;color:var(--c-ink-900);line-height:1.35;
  margin:32px 0 12px;padding-left:14px;position:relative;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:4px;background:var(--g-brand);
}
.article-body h3{font-size:20px;font-weight:700;color:var(--c-ink-900);margin:26px 0 10px;}
.article-body h4{font-size:17.5px;font-weight:700;color:var(--c-ink-900);margin:20px 0 8px;}
.article-body p{color:#3B3646;}
.article-body strong{color:var(--c-ink-900);}
.article-body a{color:var(--c-brand-700);border-bottom:1px dashed var(--c-brand-200);}
.article-body a:hover{color:var(--c-brand-500);border-bottom-color:var(--c-brand-500);}
.article-body ul,.article-body ol{padding-left:1.4em;list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin:.45em 0;}
.article-body li::marker{color:var(--c-brand-500);}
.article-body blockquote{
  background:var(--c-brand-050);border-left:3px solid var(--c-brand-500);border-radius:0 var(--r-in) var(--r-in) 0;
  padding:16px 20px;color:var(--c-ink-600);font-size:16px;
}
.article-body img{border-radius:var(--r-img);margin:8px auto;box-shadow:var(--sh-1);}
.article-body figure{margin:20px 0;}
.article-body figcaption,.article-body .caption{font-size:13px;color:var(--c-ink-400);text-align:center;margin-top:8px;}
.article-body table{width:100%;border-collapse:separate;border-spacing:0;font-size:15.5px;margin:18px 0;}
.article-body table th{background:var(--c-brand-050);color:var(--c-ink-900);font-weight:700;text-align:left;}
.article-body table th,.article-body table td{padding:12px 14px;border-bottom:1px solid var(--c-line);}
.article-body table tr:last-child td{border-bottom:none;}
.article-body pre{
  background:#F4F3F8;border:1px solid var(--c-line);border-radius:var(--r-in);padding:16px 18px;
  overflow-x:auto;font-size:14px;line-height:1.7;color:#332E42;
}
.article-body code{font-family:'JetBrains Mono',Consolas,Menlo,monospace;font-size:.92em;background:#F4F3F8;border-radius:6px;padding:2px 6px;}
.article-body pre code{background:none;padding:0;}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;}
.article-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:26px;}
.tag-pill{
  font-size:12.5px;font-weight:600;color:var(--c-brand-700);background:var(--c-brand-050);
  border:1px solid var(--c-brand-200);border-radius:999px;padding:6px 13px;transition:all var(--ease);
}
.tag-pill:hover{background:var(--c-brand-200);color:var(--c-brand-900);}
.empty-box{
  background:var(--c-surface);border:1px dashed var(--c-line);border-radius:var(--r-lg);padding:56px 24px;text-align:center;
}
.empty-box .ico{font-size:34px;color:var(--c-brand-200);margin-bottom:14px;}
.empty-box h2{font-size:22px;font-weight:800;color:var(--c-ink-900);}
.empty-box p{color:var(--c-ink-600);margin:8px 0 20px;}

/* ---------- sidebar ---------- */
.side{position:sticky;top:96px;}
.side-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);padding:22px;box-shadow:var(--sh-1);}
.side-card+.side-card{margin-top:20px;}
.side-title{font-size:15px;font-weight:800;color:var(--c-ink-900);margin-bottom:14px;display:flex;align-items:center;gap:8px;}
.side-title i{color:var(--c-brand-500);}
.toc-list a{
  display:block;font-size:14px;color:var(--c-ink-600);padding:7px 10px;border-left:2px solid var(--c-line);
  transition:all var(--ease);
}
.toc-list a:hover,.toc-list a.on{color:var(--c-brand-500);border-left-color:var(--c-brand-500);background:var(--c-brand-050);}
.mini-post{display:flex;gap:12px;padding:11px 0;border-bottom:1px dashed var(--c-line);}
.mini-post:last-child{border-bottom:none;padding-bottom:0;}
.mini-post .thumb{width:64px;height:46px;border-radius:10px;overflow:hidden;flex:0 0 auto;background:#EDE9FA;}
.mini-post .thumb img{width:100%;height:100%;object-fit:cover;}
.mini-post h4{font-size:14px;font-weight:600;color:var(--c-ink-900);line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.mini-post:hover h4{color:var(--c-brand-500);}
.mini-post .t{font-size:12px;color:var(--c-ink-400);margin-top:2px;}
.back-card{background:var(--g-soft);border:1px solid var(--c-brand-200);}
.back-card p{font-size:13.5px;color:var(--c-ink-600);margin-bottom:14px;}

/* ---------- prev / next ---------- */
.pn-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:40px;}
.pn-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);padding:18px 20px;
  display:flex;align-items:center;gap:12px;box-shadow:var(--sh-1);transition:all var(--ease);
}
.pn-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--c-brand-200);}
.pn-card i{color:var(--c-brand-500);font-size:15px;}
.pn-card .lbl{font-size:12.5px;color:var(--c-ink-400);}
.pn-card .ttl{font-size:15px;font-weight:700;color:var(--c-ink-900);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.pn-card.next{text-align:right;justify-content:flex-end;}

/* ---------- related ---------- */
.sec{padding:64px 0;}
.sec-head{margin-bottom:28px;}
.sec-eyebrow{font-size:12.5px;font-weight:800;letter-spacing:.14em;color:var(--c-brand-500);text-transform:uppercase;}
.sec-title{font-size:clamp(23px,2.6vw,32px);font-weight:800;color:var(--c-ink-900);line-height:1.3;margin-top:8px;}
.sec-sub{color:var(--c-ink-600);font-size:15.5px;margin-top:10px;max-width:680px;}
.rel-card{
  display:block;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);overflow:hidden;
  box-shadow:var(--sh-1);transition:all var(--ease);height:100%;
}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--c-brand-200);}
.rel-card .cover{aspect-ratio:16/10;overflow:hidden;background:#EDE9FA;}
.rel-card .cover img{width:100%;height:100%;object-fit:cover;transition:transform 400ms var(--ease);}
.rel-card:hover .cover img{transform:scale(1.05);}
.rel-card .body{padding:18px 20px 20px;}
.rel-card h3{font-size:16.5px;font-weight:700;color:var(--c-ink-900);line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.center-cta{text-align:center;margin-top:34px;}

/* ---------- footer ---------- */
.site-footer{background:var(--c-brand-900);color:rgba(255,255,255,.72);padding:64px 0 26px;position:relative;margin-top:24px;}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:var(--g-brand);}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-text .b2{color:#fff;}
.footer-desc{font-size:14px;color:rgba(255,255,255,.72);line-height:1.85;margin-bottom:10px;}
.footer-title{font-size:14px;font-weight:800;color:#fff;margin-bottom:14px;}
.footer-links li{margin-bottom:9px;}
.footer-links a,.footer-links span{font-size:14px;color:rgba(255,255,255,.72);transition:color var(--ease);}
.footer-links a:hover{color:var(--c-accent-500);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);margin-top:40px;padding-top:20px;font-size:13px;
  color:rgba(255,255,255,.6);display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
}
.to-top{
  position:fixed;right:22px;bottom:26px;width:46px;height:46px;border-radius:14px;border:none;background-image:var(--g-brand);
  color:#fff;box-shadow:var(--sh-btn);display:none;align-items:center;justify-content:center;z-index:1030;
}
.to-top.show{display:inline-flex;}

.reveal{opacity:0;transform:translateY(12px);transition:opacity 500ms var(--ease),transform 500ms var(--ease);}
.reveal.in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;}
  .reveal{opacity:1;transform:none;}
}
@media (max-width:1199px){
  .side{position:static;}
}
@media (max-width:991px){
  .container{padding-left:20px;padding-right:20px;}
  .site-nav{padding:0;}
  .article-body{padding:26px 20px;font-size:16.5px;}
  .sec{padding:52px 0;}
  .footer-bottom{flex-direction:column;}
}
@media (max-width:767px){
  .pn-grid{grid-template-columns:1fr;}
  .pn-card.next{text-align:left;justify-content:flex-start;}
  .article-h1{font-size:25px;}
}
@media (max-width:575px){
  .container{padding-left:18px;padding-right:18px;}
  .brand-text{font-size:16px;}
  .article-body{padding:22px 16px;font-size:16px;}
  .sec{padding:44px 0;}
  .btn-primary,.btn-outline-brand{width:100%;}
}

/* roulang page: category2 */
:root{
  --c-brand-900:#1B1039;
  --c-brand-700:#4B2ED8;
  --c-brand-500:#6C4BFF;
  --c-brand-200:#DCD3FF;
  --c-brand-050:#F0ECFF;
  --c-accent-500:#22D3C5;
  --c-accent-050:#E4FBF8;
  --c-hot-500:#FF7A2F;
  --c-hot-050:#FFF1E8;
  --c-ink-900:#16121F;
  --c-ink-600:#5A5566;
  --c-ink-400:#8E8A99;
  --c-line:#E8E4F2;
  --c-bg:#F7F5FC;
  --c-surface:#FFFFFF;
  --g-brand:linear-gradient(120deg,#6C4BFF 0%,#9B5CFF 52%,#22D3C5 100%);
  --g-soft:linear-gradient(180deg,rgba(108,75,255,.12),rgba(34,211,197,.06));
  --sh-1:0 1px 2px rgba(22,18,31,.04),0 10px 28px rgba(76,46,216,.07);
  --sh-2:0 18px 44px rgba(76,46,216,.16);
  --sh-btn:0 10px 26px rgba(108,75,255,.32);
  --r-lg:24px;
  --r-md:20px;
  --r-btn:14px;
  --r-input:12px;
  --tr:200ms cubic-bezier(.2,.7,.3,1);
  --font:'Noto Sans SC','PingFang SC','Microsoft YaHei','Source Han Sans SC',system-ui,-apple-system,sans-serif;
  --bs-body-font-family:var(--font);
  --bs-body-color:#5A5566;
  --bs-body-bg:#F7F5FC;
  --bs-primary:#6C4BFF;
  --bs-primary-rgb:108,75,255;
  --bs-link-color:#6C4BFF;
  --bs-link-hover-color:#4B2ED8;
  --bs-border-color:#E8E4F2;
  --bs-border-radius:14px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16.5px;
  line-height:1.85;
  color:var(--c-ink-600);
  background:var(--c-bg);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--c-brand-500);text-decoration:none;transition:color var(--tr);}
a:hover{color:var(--c-brand-700);}
h1,h2,h3,h4{color:var(--c-ink-900);margin:0 0 .5em;font-weight:800;}
h1{font-size:clamp(30px,4.2vw,50px);line-height:1.18;letter-spacing:-.4px;}
h2{font-size:clamp(23px,2.6vw,34px);line-height:1.25;}
h3{font-size:20px;line-height:1.4;font-weight:700;}
p{margin:0 0 1em;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:3px solid rgba(108,75,255,.35);outline-offset:2px;border-radius:8px;}
.container{max-width:1200px;padding-left:24px;padding-right:24px;}

/* ---------- 按钮体系 ---------- */
.btn{
  --bs-btn-border-radius:14px;
  border-radius:var(--r-btn);
  font-size:15.5px;
  font-weight:700;
  padding:12px 24px;
  line-height:1.4;
  display:inline-flex;
  align-items:center;
  gap:8px;
  justify-content:center;
  transition:transform var(--tr),box-shadow var(--tr),background var(--tr),color var(--tr),border-color var(--tr);
}
.btn.btn-primary{
  background-image:var(--g-brand);
  background-size:200% 100%;
  background-position:0 0;
  border:0;
  color:#fff;
  box-shadow:var(--sh-btn);
}
.btn.btn-primary:hover,.btn.btn-primary:focus{
  background-position:100% 0;
  color:#fff;
  transform:translateY(-2px);
  box-shadow:0 16px 34px rgba(108,75,255,.42);
}
.btn.btn-primary:active{
  transform:translateY(1px);
  box-shadow:0 6px 16px rgba(108,75,255,.35);
}
.btn.btn-primary:focus-visible{outline:3px solid rgba(108,75,255,.35);}
.btn.btn-outline-brand{
  background:#fff;
  border:1.5px solid var(--c-brand-500);
  color:var(--c-brand-500);
}
.btn.btn-outline-brand:hover{
  background:var(--c-brand-050);
  color:var(--c-brand-700);
  border-color:var(--c-brand-700);
  transform:translateY(-2px);
}
.btn.btn-ghost-light{
  background:rgba(255,255,255,.16);
  border:1px solid rgba(255,255,255,.32);
  color:#fff;
}
.btn.btn-ghost-light:hover{
  background:rgba(255,255,255,.26);
  color:#fff;
  transform:translateY(-2px);
}
.btn.btn-light-solid{
  background:#fff;
  color:var(--c-brand-700);
  border:0;
  box-shadow:0 12px 30px rgba(22,18,31,.18);
}
.btn.btn-light-solid:hover{
  color:var(--c-brand-900);
  transform:translateY(-2px);
  box-shadow:0 18px 38px rgba(22,18,31,.24);
}
.btn-sm{padding:9px 16px;font-size:14px;border-radius:12px;}
.btn-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px;}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:1030;}
.site-nav{
  background:rgba(255,255,255,.92);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--c-line);
  min-height:72px;
  padding:0;
}
.site-nav .container{display:flex;align-items:center;gap:12px;min-height:72px;}
.navbar-brand{display:flex;align-items:center;gap:10px;padding:0;margin:0;}
.brand-mark{
  width:40px;height:40px;border-radius:14px;
  background-image:var(--g-brand);
  color:#fff;display:grid;place-items:center;
  font-size:17px;flex:0 0 auto;
  box-shadow:0 8px 18px rgba(108,75,255,.28);
}
.brand-text{display:inline-flex;align-items:baseline;font-size:18px;font-weight:800;letter-spacing:.1px;white-space:nowrap;}
.brand-text .b1{color:var(--c-brand-500);}
.brand-text .b2{color:var(--c-ink-900);}
.site-nav .nav-link{
  font-size:15.5px;font-weight:600;color:var(--c-ink-600);
  padding:8px 14px;margin:0 2px;border-radius:999px;position:relative;
  transition:all var(--tr);
}
.site-nav .nav-link:hover{color:var(--c-brand-500);background:var(--c-brand-050);}
.site-nav .nav-link.active{color:var(--c-brand-500);background:var(--c-brand-050);}
.site-nav .nav-link.active::after{
  content:'';position:absolute;left:50%;transform:translateX(-50%);
  bottom:-6px;width:22px;height:3px;border-radius:3px;background:var(--g-brand);
}
.nav-right{display:flex;align-items:center;gap:10px;}
.status-pill{
  display:inline-flex;align-items:center;gap:7px;
  font-size:12.5px;font-weight:600;color:#12897F;
  background:var(--c-accent-050);border:1px solid rgba(34,211,197,.4);
  padding:6px 12px;border-radius:999px;white-space:nowrap;
}
.status-dot{width:8px;height:8px;border-radius:50%;background:var(--c-accent-500);box-shadow:0 0 0 3px rgba(34,211,197,.2);}
.promo-pill{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12.5px;font-weight:600;color:#B14A12;
  background:var(--c-hot-050);border:1px solid rgba(255,122,47,.45);
  padding:6px 12px;border-radius:999px;white-space:nowrap;
}
.promo-pill b{font-variant-numeric:tabular-nums;color:var(--c-hot-500);font-weight:800;}
.nav-toggle{
  width:42px;height:42px;border-radius:13px;border:1px solid var(--c-line);
  background:#fff;color:var(--c-ink-900);font-size:17px;
  display:grid;place-items:center;transition:all var(--tr);
}
.nav-toggle:hover{background:var(--c-brand-050);color:var(--c-brand-500);border-color:var(--c-brand-200);}

/* 抽屉 */
.offcanvas.nav-drawer{width:86vw;max-width:370px;border-left:1px solid var(--c-line);}
.nav-drawer .offcanvas-header{border-bottom:1px solid var(--c-line);padding:18px 22px;}
.drawer-title{font-size:16px;font-weight:800;color:var(--c-ink-900);}
.nav-drawer .offcanvas-body{padding:22px;display:flex;flex-direction:column;gap:10px;}
.nav-drawer .status-pill,.nav-drawer .promo-pill{align-self:flex-start;margin-bottom:2px;}
.drawer-link{
  display:block;padding:13px 16px;border-radius:14px;
  font-size:16px;font-weight:700;color:var(--c-ink-900);
  background:#fff;border:1px solid var(--c-line);transition:all var(--tr);
}
.drawer-link:hover{background:var(--c-brand-050);color:var(--c-brand-700);border-color:var(--c-brand-200);}
.drawer-link.active{background:var(--c-brand-050);color:var(--c-brand-500);border-color:var(--c-brand-200);}
.nav-drawer .btn{margin-top:8px;}

/* ---------- 分类页头部 ---------- */
.cat-hero{
  position:relative;overflow:hidden;
  padding:44px 0 56px;
  background-image:var(--g-soft);
  background-color:var(--c-bg);
}
.cat-hero::before{
  content:'';position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  opacity:.10;pointer-events:none;
}
.cat-hero::after{
  content:'';position:absolute;left:0;right:0;bottom:0;height:3px;background:var(--g-brand);
}
.cat-hero .container{position:relative;z-index:2;}
.crumbs{font-size:13px;color:var(--c-ink-400);margin-bottom:16px;display:flex;align-items:center;gap:8px;flex-wrap:wrap;}
.crumbs a{color:var(--c-ink-400);}
.crumbs a:hover{color:var(--c-brand-500);}
.crumbs .sep{opacity:.7;}
.crumbs .cur{color:var(--c-ink-900);font-weight:600;}
.tag-chip{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12.5px;font-weight:700;color:var(--c-brand-700);
  background:var(--c-brand-050);border:1px solid var(--c-brand-200);
  padding:6px 13px;border-radius:999px;margin-bottom:16px;
}
.tag-chip--soft{background:var(--c-accent-050);border-color:rgba(34,211,197,.4);color:#12897F;}
.cat-hero h1{max-width:900px;margin-bottom:16px;}
.lead-text{font-size:17px;color:var(--c-ink-600);max-width:640px;margin:0;}
.hero-side{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);
  padding:22px;box-shadow:var(--sh-1);display:flex;flex-direction:column;gap:12px;
}
.ver-badge{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:800;color:var(--c-brand-700);
  background:var(--c-brand-050);
  border:1px solid transparent;
  background-image:linear-gradient(#F0ECFF,#F0ECFF),var(--g-brand);
  background-origin:border-box;background-clip:padding-box,border-box;
  padding:7px 14px;border-radius:999px;align-self:flex-start;
}
.meta-line{font-size:13px;color:var(--c-ink-600);line-height:1.7;}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0;}
.section--tight{padding:64px 0;}
.section-head{max-width:760px;margin-bottom:36px;}
.section-head h2{margin-bottom:12px;}
.section-head p{color:var(--c-ink-600);margin:0;}
.eyebrow{
  display:inline-block;font-size:12.5px;font-weight:800;letter-spacing:1.2px;
  color:var(--c-brand-700);background:var(--c-brand-050);
  padding:6px 12px;border-radius:999px;margin-bottom:14px;
}
.underline-grad{position:relative;display:inline-block;}
.underline-grad::after{
  content:'';position:absolute;left:0;bottom:-8px;width:64px;height:4px;border-radius:4px;background:var(--g-brand);
}

/* ---------- 版本主卡 ---------- */
.card-x{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);overflow:hidden;transition:box-shadow var(--tr),transform var(--tr);
}
.card-x:hover{box-shadow:var(--sh-2);transform:translateY(-4px);}
.vm-cover{position:relative;overflow:hidden;border-radius:0;}
.vm-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.vm-cover::after{
  content:'';position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(27,16,57,0) 40%,rgba(27,16,57,.42) 100%);
}
.vm-body{padding:30px 32px 32px;}
.vm-body h3{font-size:24px;margin:8px 0 10px;}
.vm-body > p{color:var(--c-ink-600);margin-bottom:20px;}
.spec-list{border-top:1px solid var(--c-line);}
.spec-list li{
  display:flex;justify-content:space-between;gap:16px;
  padding:13px 0;border-bottom:1px dashed var(--c-line);
  font-size:14.5px;color:var(--c-ink-600);
}
.spec-list li span{color:var(--c-ink-400);flex:0 0 auto;}
.spec-list li b{color:var(--c-ink-900);font-weight:700;text-align:right;}

/* ---------- 版本历史 ---------- */
.history-panel{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);padding:28px;height:100%;
}
.history-panel h2{font-size:22px;margin-bottom:6px;}
.panel-sub{font-size:13.5px;color:var(--c-ink-400);margin:0 0 18px;}
.history-list li{
  border-top:1px solid var(--c-line);padding:16px 0;display:flex;gap:14px;
}
.history-list li:first-child{border-top:0;padding-top:0;}
.h-ver{
  flex:0 0 auto;min-width:78px;font-size:13px;font-weight:800;color:var(--c-brand-700);
  background:var(--c-brand-050);border-radius:10px;padding:6px 10px;text-align:center;height:fit-content;
}
.h-main{flex:1 1 auto;}
.h-date{font-size:12.5px;color:var(--c-ink-400);margin-bottom:4px;}
.h-desc{font-size:14px;color:var(--c-ink-600);margin:0 0 8px;line-height:1.7;}
.h-link{font-size:13.5px;font-weight:700;color:var(--c-brand-500);display:inline-flex;align-items:center;gap:6px;}
.h-link:hover{color:var(--c-brand-700);}
.h-link i{font-size:11px;transition:transform var(--tr);}
.h-link:hover i{transform:translateX(3px);}

/* ---------- 系统要求表 ---------- */
.table-wrap{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);overflow:hidden;
}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;}
.spec-table{width:100%;min-width:720px;border-collapse:collapse;font-size:15px;}
.spec-table thead th{
  background:var(--c-brand-050);color:var(--c-ink-900);
  font-weight:800;font-size:14px;text-align:left;
  padding:16px 22px;border-bottom:1px solid var(--c-brand-200);white-space:nowrap;
}
.spec-table tbody td{
  padding:16px 22px;border-bottom:1px solid var(--c-line);
  color:var(--c-ink-600);vertical-align:top;
}
.spec-table tbody tr:last-child td{border-bottom:0;}
.spec-table tbody tr:hover td{background:#FCFBFF;}
.spec-table td:first-child{color:var(--c-ink-900);font-weight:700;}
.table-note{font-size:13px;color:var(--c-ink-400);padding:14px 22px;border-top:1px solid var(--c-line);background:#FDFCFF;}

/* ---------- 流程卡 ---------- */
.step-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.step-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);
  padding:28px 26px;box-shadow:var(--sh-1);transition:all var(--tr);position:relative;
}
.step-card:hover{box-shadow:var(--sh-2);transform:translateY(-4px);}
.step-num{
  width:44px;height:44px;border-radius:14px;
  display:grid;place-items:center;font-weight:800;font-size:17px;
  color:var(--c-brand-700);
  background:linear-gradient(#fff,#fff) padding-box,var(--g-brand) border-box;
  border:2px solid transparent;margin-bottom:16px;
}
.step-card h3{font-size:18px;margin-bottom:8px;}
.step-card p{font-size:14.5px;color:var(--c-ink-600);margin:0;line-height:1.8;}

/* ---------- 校验说明卡 ---------- */
.verify-card{
  background:var(--c-brand-900);border-radius:var(--r-lg);
  padding:40px;color:rgba(255,255,255,.78);position:relative;overflow:hidden;
}
.verify-card::before{
  content:'';position:absolute;top:-120px;right:-80px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(108,75,255,.55),rgba(34,211,197,0) 70%);
}
.verify-inner{position:relative;z-index:2;display:grid;grid-template-columns:auto 1fr;gap:28px;align-items:start;}
.verify-icon{
  width:60px;height:60px;border-radius:18px;display:grid;place-items:center;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);
  color:#fff;font-size:24px;
}
.verify-card h2{color:#fff;font-size:24px;margin-bottom:10px;}
.verify-card .verify-sub{color:rgba(255,255,255,.72);font-size:15px;margin-bottom:20px;}
.check-list li{
  display:flex;gap:12px;padding:11px 0;border-top:1px solid rgba(255,255,255,.12);
  font-size:15px;line-height:1.8;color:rgba(255,255,255,.78);
}
.check-list li:first-child{border-top:0;padding-top:0;}
.check-list i{color:var(--c-accent-500);font-size:14px;margin-top:6px;flex:0 0 auto;}

/* ---------- FAQ ---------- */
.faq-col{max-width:880px;margin:0 auto;}
.accordion-item{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md)!important;
  overflow:hidden;margin-bottom:14px;box-shadow:var(--sh-1);
}
.accordion-button{
  position:relative;width:100%;background:var(--c-brand-050);
  color:var(--c-ink-900);font-size:17px;font-weight:700;
  padding:20px 56px 20px 24px;box-shadow:none;
  border-radius:0!important;transition:all var(--tr);
}
.accordion-button:not(.collapsed){
  background:#fff;color:var(--c-brand-700);
  box-shadow:var(--sh-2);
}
.accordion-button:not(.collapsed)::before{
  content:'';position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--g-brand);
}
.accordion-button::after{display:none;}
.acc-icon{
  position:absolute;right:20px;top:50%;transform:translateY(-50%);
  width:28px;height:28px;border-radius:9px;
  display:grid;place-items:center;font-size:15px;font-weight:700;
  background:#fff;color:var(--c-brand-500);border:1px solid var(--c-brand-200);
}
.acc-icon::before{content:'+';}
.accordion-button:not(.collapsed) .acc-icon{background-image:var(--g-brand);color:#fff;border-color:transparent;}
.accordion-button:not(.collapsed) .acc-icon::before{content:'−';}
.accordion-button:focus{outline:3px solid rgba(108,75,255,.35);outline-offset:-3px;box-shadow:none;}
.accordion-body{padding:18px 24px 24px;font-size:15.5px;line-height:1.85;color:var(--c-ink-600);background:#fff;}

/* ---------- CTA 带 ---------- */
.cta-band{
  position:relative;overflow:hidden;padding:72px 0;
  background:var(--c-brand-900);
}
.cta-band::before{
  content:'';position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-3.png');
  background-size:cover;background-position:center;opacity:.16;
}
.cta-band::after{
  content:'';position:absolute;top:0;left:0;right:0;height:3px;background:var(--g-brand);
}
.cta-inner{position:relative;z-index:2;text-align:center;max-width:720px;margin:0 auto;}
.cta-inner h2{color:#fff;font-size:clamp(24px,2.8vw,34px);}
.cta-inner p{color:rgba(255,255,255,.78);font-size:16.5px;margin-bottom:0;}
.cta-inner .btn-row{justify-content:center;}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;background:var(--c-brand-900);color:rgba(255,255,255,.72);
  padding:68px 0 28px;
}
.site-footer::before{
  content:'';position:absolute;top:0;left:0;right:0;height:1px;background:var(--g-brand);
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.site-footer .brand-text .b1{color:var(--c-brand-200);}
.site-footer .brand-text .b2{color:#fff;}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.7);margin-bottom:12px;}
.footer-title{font-size:15px;font-weight:800;color:#fff;margin-bottom:16px;}
.footer-links li{margin-bottom:10px;}
.footer-links a,.footer-links span{font-size:14px;color:rgba(255,255,255,.72);line-height:1.7;}
.footer-links a:hover{color:#fff;}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.6);
}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 520ms cubic-bezier(.2,.7,.3,1),transform 520ms cubic-bezier(.2,.7,.3,1);}
.reveal.is-in{opacity:1;transform:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .site-nav .nav-link{font-size:15px;padding:8px 11px;}
}
@media (max-width:991.98px){
  .section{padding:64px 0;}
  .section--tight{padding:52px 0;}
  .cat-hero{padding:32px 0 44px;}
  .hero-side{margin-top:22px;}
  .step-grid{grid-template-columns:1fr;}
  .verify-inner{grid-template-columns:1fr;gap:20px;}
  .verify-card{padding:30px;}
  .vm-body{padding:24px;}
  .history-panel{padding:22px;}
}
@media (max-width:767.98px){
  .container{padding-left:18px;padding-right:18px;}
  body{font-size:16px;}
  .section{padding:48px 0;}
  .section--tight{padding:42px 0;}
  .brand-text{font-size:16px;}
  .brand-mark{width:36px;height:36px;border-radius:12px;font-size:15px;}
  .btn{width:100%;}
  .btn-sm{width:auto;}
  .btn-row{flex-direction:column;align-items:stretch;}
  .cta-inner .btn-row{flex-direction:column;}
  .vm-body h3{font-size:21px;}
  .history-list li{flex-direction:column;gap:8px;}
  .h-ver{min-width:auto;align-self:flex-start;}
  .footer-bottom{flex-direction:column;gap:6px;}
}
@media (max-width:575.98px){
  h1{font-size:29px;}
  .accordion-button{font-size:15.5px;padding:17px 52px 17px 18px;}
  .accordion-body{padding:16px 18px 20px;}
  .spec-table thead th,.spec-table tbody td{padding:14px 16px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;transition-duration:.001ms!important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: category1 */
:root{
  --c-brand-900:#1B1039;
  --c-brand-700:#4B2ED8;
  --c-brand-500:#6C4BFF;
  --c-brand-200:#DCD3FF;
  --c-brand-050:#F0ECFF;
  --c-accent-500:#22D3C5;
  --c-accent-050:#E4FBF8;
  --c-hot-500:#FF7A2F;
  --c-hot-050:#FFF1E8;
  --c-ink-900:#16121F;
  --c-ink-600:#5A5566;
  --c-ink-400:#8E8A99;
  --c-line:#E8E4F2;
  --c-bg:#F7F5FC;
  --c-surface:#FFFFFF;
  --g-brand:linear-gradient(120deg,#6C4BFF 0%,#9B5CFF 55%,#22D3C5 100%);
  --g-soft:linear-gradient(180deg,rgba(108,75,255,.12) 0%,rgba(34,211,197,.06) 100%);
  --sh-1:0 1px 2px rgba(22,18,31,.04),0 10px 28px rgba(76,46,216,.07);
  --sh-2:0 18px 44px rgba(76,46,216,.16);
  --sh-btn:0 10px 26px rgba(108,75,255,.32);
  --r-xl:24px;
  --r-lg:20px;
  --r-btn:14px;
  --r-in:12px;
  --t:200ms cubic-bezier(.2,.7,.3,1);
  --bs-body-color:#16121F;
  --bs-body-bg:#F7F5FC;
  --bs-primary:#6C4BFF;
  --bs-border-color:#E8E4F2;
  --bs-link-color:#4B2ED8;
  --bs-link-hover-color:#6C4BFF;
  --bs-font-sans-serif:'Noto Sans SC','PingFang SC','Microsoft YaHei','Source Han Sans SC',system-ui,-apple-system,sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:96px;}
body{
  margin:0;
  font-family:'Noto Sans SC','PingFang SC','Microsoft YaHei','Source Han Sans SC',system-ui,-apple-system,sans-serif;
  font-size:16.5px;
  line-height:1.85;
  color:var(--c-ink-900);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;}
a{color:var(--c-brand-700);text-decoration:none;transition:color var(--t);}
a:hover{color:var(--c-brand-500);}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul{padding-left:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:3px solid rgba(108,75,255,.35);outline-offset:2px;border-radius:6px;}

.container{max-width:1200px;padding-left:24px;padding-right:24px;}

/* ============ 通用排版 ============ */
.sec{padding:96px 0;}
.sec-tight{padding:64px 0;}
.sec-head{max-width:760px;margin-bottom:44px;}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:700;letter-spacing:.06em;
  color:var(--c-brand-700);background:var(--c-brand-050);
  border:1px solid var(--c-brand-200);border-radius:999px;
  padding:6px 14px;margin-bottom:18px;
}
.sec-title{font-size:clamp(23px,2.6vw,34px);line-height:1.25;font-weight:800;color:var(--c-ink-900);}
.sec-title .hl{
  background:var(--g-brand);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.sec-title::after{
  content:"";display:block;width:56px;height:4px;border-radius:999px;background:var(--g-brand);margin-top:18px;
}
.sec-head.center .sec-title::after{margin-left:auto;margin-right:auto;}
.sec-desc{margin-top:16px;color:var(--c-ink-600);font-size:16px;line-height:1.85;}
.muted{color:var(--c-ink-400);font-size:14px;}

/* ============ 按钮 ============ */
.btn{
  border-radius:var(--r-btn);font-weight:700;font-size:15.5px;
  padding:12px 24px;border:0;transition:transform var(--t),box-shadow var(--t),background var(--t),color var(--t);
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
}
.btn:focus,.btn:focus-visible{box-shadow:0 0 0 4px rgba(108,75,255,.22);}
.btn-primary{
  background:var(--g-brand);background-size:180% 100%;color:#fff;box-shadow:var(--sh-btn);
}
.btn-primary:hover{color:#fff;transform:translateY(-2px);background-position:100% 0;box-shadow:0 16px 34px rgba(108,75,255,.34);}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 16px rgba(108,75,255,.3);}
.btn-outline-brand{
  background:#fff;color:var(--c-brand-700);border:1.5px solid var(--c-brand-500);
}
.btn-outline-brand:hover{background:var(--c-brand-050);color:var(--c-brand-700);transform:translateY(-2px);}
.btn-ghost{
  background:rgba(255,255,255,.16);color:#fff;border:1px solid rgba(255,255,255,.32);
}
.btn-ghost:hover{background:rgba(255,255,255,.26);color:#fff;transform:translateY(-2px);}
.btn-sm{padding:9px 18px;font-size:14px;border-radius:12px;}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--c-line);
}
.site-nav{padding:0;min-height:72px;}
.site-nav .container{display:flex;align-items:center;gap:16px;min-height:72px;flex-wrap:nowrap;}
.navbar-brand{display:flex;align-items:center;gap:12px;padding:0;margin:0;text-decoration:none;flex:0 0 auto;}
.brand-mark{
  width:40px;height:40px;border-radius:14px;background:var(--g-brand);
  display:grid;place-items:center;color:#fff;font-size:17px;flex:0 0 auto;
  box-shadow:0 8px 18px rgba(108,75,255,.32);
}
.brand-text{font-size:18px;font-weight:800;letter-spacing:.2px;line-height:1.2;white-space:nowrap;}
.brand-text .b1{color:var(--c-brand-500);}
.brand-text .b2{color:var(--c-ink-900);}
.site-nav .nav-link{
  position:relative;font-size:15.5px;font-weight:600;color:var(--c-ink-600);
  padding:9px 16px;border-radius:999px;transition:all var(--t);white-space:nowrap;
}
.site-nav .nav-link:hover{color:var(--c-brand-700);background:var(--c-brand-050);}
.site-nav .nav-link.active{color:var(--c-brand-500);background:var(--c-brand-050);}
.site-nav .nav-link.active::after{
  content:"";position:absolute;left:50%;transform:translateX(-50%);bottom:-2px;
  width:34px;height:3px;border-radius:999px;background:var(--g-brand);
}
.nav-right{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.status-pill{
  align-items:center;gap:7px;font-size:13px;color:var(--c-ink-600);
  background:var(--c-accent-050);border:1px solid rgba(34,211,197,.4);
  border-radius:999px;padding:6px 13px;white-space:nowrap;
}
.status-dot{width:8px;height:8px;border-radius:50%;background:var(--c-accent-500);box-shadow:0 0 0 4px rgba(34,211,197,.18);}
.promo-pill{
  align-items:center;gap:7px;font-size:13px;color:var(--c-hot-500);font-weight:600;
  background:var(--c-hot-050);border:1px solid rgba(255,122,47,.45);
  border-radius:999px;padding:6px 13px;white-space:nowrap;
}
.promo-pill b{font-variant-numeric:tabular-nums;color:var(--c-hot-500);}
.nav-toggle{
  width:42px;height:42px;border-radius:12px;border:1px solid var(--c-line);
  background:#fff;color:var(--c-brand-700);font-size:17px;display:grid;place-items:center;
}
.nav-toggle:hover{background:var(--c-brand-050);}

/* 移动抽屉 */
.nav-drawer{width:86vw;max-width:360px;background:#fff;}
.nav-drawer .offcanvas-header{border-bottom:1px solid var(--c-line);padding:18px 20px;}
.nav-drawer .offcanvas-body{padding:18px 20px 28px;}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 16px;border-radius:var(--r-in);font-size:16px;font-weight:600;
  color:var(--c-ink-900);background:#fff;border:1px solid var(--c-line);margin-bottom:10px;
}
.drawer-link:hover{background:var(--c-brand-050);color:var(--c-brand-700);}
.drawer-link.active{background:var(--c-brand-050);color:var(--c-brand-500);border-color:var(--c-brand-200);}
.drawer-meta{margin-top:18px;display:flex;flex-wrap:wrap;gap:10px;}

/* ============ 页面头部 ============ */
.page-hero{position:relative;padding:56px 0 60px;overflow:hidden;background:#fff;}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  opacity:.08;
}
.page-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:3px;background:var(--g-brand);
}
.page-hero .container{position:relative;z-index:1;}
.crumb{font-size:13px;color:var(--c-ink-400);margin-bottom:14px;}
.crumb a{color:var(--c-ink-400);}
.crumb a:hover{color:var(--c-brand-500);}
.crumb .sep{margin:0 8px;color:var(--c-line);}
.crumb .cur{color:var(--c-ink-900);}
.page-hero h1{
  font-size:clamp(28px,3.6vw,44px);line-height:1.22;font-weight:800;color:var(--c-ink-900);
  margin:14px 0 16px;letter-spacing:-.01em;
}
.page-hero .lead{font-size:16.5px;color:var(--c-ink-600);max-width:640px;}
.anchor-chips{display:flex;flex-wrap:wrap;gap:10px;justify-content:flex-start;}
.anchor-chips a{
  font-size:13.5px;font-weight:600;color:var(--c-brand-700);
  background:#fff;border:1px solid var(--c-brand-200);border-radius:999px;
  padding:8px 15px;transition:all var(--t);
}
.anchor-chips a:hover{background:var(--c-brand-050);border-color:var(--c-brand-500);transform:translateY(-2px);}

/* ============ 步骤卡 ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.step-card{
  position:relative;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-xl);
  padding:28px 24px;box-shadow:var(--sh-1);transition:transform var(--t),box-shadow var(--t);
  height:100%;
}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.step-num{
  width:44px;height:44px;border-radius:16px;display:grid;place-items:center;
  font-size:17px;font-weight:800;color:#fff;background:var(--g-brand);
  box-shadow:0 8px 18px rgba(108,75,255,.28);margin-bottom:18px;
}
.step-card h3{font-size:18px;font-weight:700;color:var(--c-ink-900);margin-bottom:10px;}
.step-card p{font-size:15px;color:var(--c-ink-600);line-height:1.8;}

/* ============ 图文准备区 ============ */
.prep-media{
  border-radius:var(--r-xl);overflow:hidden;box-shadow:var(--sh-1);border:1px solid var(--c-line);
  aspect-ratio:16/10;background:#fff;
}
.prep-media img{width:100%;height:100%;object-fit:cover;}
.check-list li{
  display:flex;gap:14px;padding:16px 0;border-bottom:1px dashed var(--c-line);
}
.check-list li:last-child{border-bottom:0;}
.check-icon{
  width:34px;height:34px;border-radius:12px;background:var(--c-brand-050);
  display:grid;place-items:center;color:var(--c-brand-500);flex:0 0 auto;font-size:14px;
}
.check-list h3{font-size:16.5px;font-weight:700;margin-bottom:4px;color:var(--c-ink-900);}
.check-list p{font-size:14.5px;color:var(--c-ink-600);line-height:1.8;}

/* ============ 表格 ============ */
.table-wrap{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);overflow-x:auto;
}
.table{width:100%;margin:0;border-collapse:separate;border-spacing:0;min-width:680px;}
.table thead th{
  background:var(--c-brand-050);color:var(--c-brand-700);font-size:14px;font-weight:700;
  padding:16px 20px;border:0;white-space:nowrap;
}
.table tbody td{
  padding:16px 20px;font-size:15px;color:var(--c-ink-600);
  border-top:1px solid var(--c-line);vertical-align:middle;
}
.table tbody td:first-child{color:var(--c-ink-900);font-weight:700;}
.table tbody tr:hover td{background:#FCFBFF;}

/* ============ 阻碍卡组 ============ */
.blocks{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
.block-card{
  display:flex;gap:16px;align-items:flex-start;border-radius:var(--r-lg);
  padding:24px;border:1px solid transparent;transition:transform var(--t),box-shadow var(--t);
}
.block-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.block-card.tone-purple{background:var(--c-brand-050);border-color:var(--c-brand-200);}
.block-card.tone-orange{background:var(--c-hot-050);border-color:rgba(255,122,47,.32);}
.block-card .blk-ico{
  width:40px;height:40px;border-radius:14px;display:grid;place-items:center;flex:0 0 auto;font-size:15px;
}
.tone-purple .blk-ico{background:#fff;color:var(--c-brand-500);}
.tone-orange .blk-ico{background:#fff;color:var(--c-hot-500);}
.block-card h3{font-size:16.5px;font-weight:700;margin-bottom:6px;color:var(--c-ink-900);}
.block-card p{font-size:14.5px;color:var(--c-ink-600);line-height:1.8;}
.tag-mini{
  display:inline-block;font-size:12.5px;font-weight:600;border-radius:999px;
  padding:3px 11px;margin-top:12px;background:#fff;color:var(--c-brand-700);border:1px solid var(--c-brand-200);
}
.tone-orange .tag-mini{color:var(--c-hot-500);border-color:rgba(255,122,47,.4);}

/* ============ FAQ ============ */
.faq-wrap{max-width:920px;margin:0 auto;}
.accordion-item{
  border:1px solid var(--c-line);border-radius:var(--r-lg)!important;
  overflow:hidden;margin-bottom:14px;background:var(--c-brand-050);
}
.accordion-button{
  background:transparent;border:0;box-shadow:none;width:100%;
  display:flex;align-items:center;gap:14px;text-align:left;
  font-size:17px;font-weight:700;color:var(--c-ink-900);padding:20px 22px;
  transition:background var(--t),color var(--t);
}
.accordion-button:not(.collapsed){
  background:#fff;color:var(--c-brand-700);
  box-shadow:inset 4px 0 0 0 var(--c-brand-500);
}
.accordion-button::after{display:none;}
.accordion-button:focus{box-shadow:inset 4px 0 0 0 var(--c-brand-500),0 0 0 4px rgba(108,75,255,.16);}
.acc-plus{
  margin-left:auto;flex:0 0 auto;width:28px;height:28px;border-radius:9px;
  background:#fff;border:1px solid var(--c-line);display:grid;place-items:center;
  color:var(--c-brand-500);font-size:12px;transition:transform var(--t),background var(--t),color var(--t);
}
.accordion-button:not(.collapsed) .acc-plus{
  background:var(--g-brand);color:#fff;border-color:transparent;transform:rotate(45deg);
}
.accordion-body{
  background:#fff;padding:6px 24px 24px;font-size:15.5px;line-height:1.85;color:var(--c-ink-600);
}

/* ============ CTA 带 ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-xl);
  background:linear-gradient(120deg,#4B2ED8 0%,#6C4BFF 48%,#8B5CFF 100%);
  padding:56px 48px;color:#fff;box-shadow:var(--sh-2);
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-3.png') center/cover no-repeat;opacity:.14;
}
.cta-band::after{
  content:"";position:absolute;right:-90px;top:-90px;width:300px;height:300px;border-radius:50%;
  background:radial-gradient(circle,rgba(34,211,197,.45),transparent 68%);
}
.cta-band .inner{position:relative;z-index:1;}
.cta-band h2{font-size:clamp(22px,2.5vw,32px);font-weight:800;line-height:1.3;margin-bottom:14px;}
.cta-band p{color:rgba(255,255,255,.82);font-size:16px;max-width:620px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:96px;background:var(--c-brand-900);color:#fff;position:relative;padding:64px 0 28px;
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;background:var(--g-brand);opacity:.85;
}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px;}
.footer-brand .brand-text .b1{color:#9B8BFF;}
.footer-brand .brand-text .b2{color:#fff;}
.footer-desc{font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.72);max-width:360px;margin-bottom:12px;}
.footer-title{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px;}
.footer-links li{margin-bottom:10px;}
.footer-links a,.footer-links span{font-size:14px;color:rgba(255,255,255,.72);}
.footer-links a:hover{color:#fff;}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.6);
}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 500ms cubic-bezier(.2,.7,.3,1),transform 500ms cubic-bezier(.2,.7,.3,1);}
.reveal.in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;transition:none;}
  *{transition-duration:.01ms!important;animation-duration:.01ms!important;}
}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .steps{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:991.98px){
  .sec{padding:64px 0;}
  .site-nav,.site-nav .container{min-height:60px;}
  .brand-text{font-size:16.5px;}
  .nav-right{gap:10px;}
  .page-hero{padding:40px 0 44px;}
  .page-hero h1{margin-top:12px;}
  .anchor-chips{justify-content:flex-start;}
  .cta-band{padding:44px 28px;}
}
@media (max-width:767.98px){
  body{font-size:16px;}
  .blocks{grid-template-columns:1fr;}
  .sec{padding:48px 0;}
  .sec-head{margin-bottom:32px;}
  .page-hero .lead{font-size:15.5px;}
  .step-card{padding:22px 20px;}
}
@media (max-width:575.98px){
  .container{padding-left:18px;padding-right:18px;}
  .steps{grid-template-columns:1fr;}
  .cta-actions{flex-direction:column;align-items:stretch;}
  .cta-actions .btn{width:100%;}
  .footer-bottom{flex-direction:column;}
  .brand-text{font-size:15.5px;}
  .brand-mark{width:36px;height:36px;border-radius:12px;font-size:15px;}
}

/* roulang page: category3 */
:root{
  --c-brand-900:#1B1039;
  --c-brand-700:#4B2ED8;
  --c-brand-500:#6C4BFF;
  --c-brand-200:#DCD3FF;
  --c-brand-050:#F0ECFF;
  --c-accent-500:#22D3C5;
  --c-accent-050:#E4FBF8;
  --c-hot-500:#FF7A2F;
  --c-hot-050:#FFF1E8;
  --c-ink-900:#16121F;
  --c-ink-600:#5A5566;
  --c-ink-400:#8E8A99;
  --c-line:#E8E4F2;
  --c-bg:#F7F5FC;
  --c-surface:#FFFFFF;
  --g-brand:linear-gradient(120deg,#6C4BFF 0%,#9B5CFF 52%,#22D3C5 100%);
  --g-soft:linear-gradient(180deg,rgba(108,75,255,.12),rgba(34,211,197,.06));
  --sh-1:0 1px 2px rgba(22,18,31,.04),0 10px 28px rgba(76,46,216,.07);
  --sh-2:0 18px 44px rgba(76,46,216,.16);
  --sh-btn:0 10px 26px rgba(108,75,255,.32);
  --r-lg:24px;
  --r-md:20px;
  --r-sm:14px;
  --r-xs:12px;
  --t:200ms cubic-bezier(.2,.7,.3,1);

  --bs-body-color:#16121F;
  --bs-body-bg:#F7F5FC;
  --bs-primary:#6C4BFF;
  --bs-primary-rgb:108,75,255;
  --bs-border-color:#E8E4F2;
  --bs-link-color:#4B2ED8;
  --bs-link-hover-color:#6C4BFF;
  --bs-font-sans-serif:'Noto Sans SC','PingFang SC','Microsoft YaHei','Source Han Sans SC',system-ui,-apple-system,sans-serif;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:'Noto Sans SC','PingFang SC','Microsoft YaHei','Source Han Sans SC',system-ui,-apple-system,sans-serif;
  font-size:16.5px;
  line-height:1.85;
  color:var(--c-ink-900);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--c-brand-700);text-decoration:none;transition:color var(--t),opacity var(--t);}
a:hover{color:var(--c-brand-500);}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4{margin:0;color:var(--c-ink-900);font-weight:800;letter-spacing:-.01em;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:3px solid rgba(108,75,255,.35);outline-offset:2px;border-radius:6px;}
.container{max-width:1200px;padding-left:24px;padding-right:24px;}
.num{font-variant-numeric:tabular-nums;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--c-line);
}
.site-nav{padding:0;height:72px;background:transparent;}
.site-nav .container{height:72px;display:flex;align-items:center;gap:18px;}
.navbar-brand{display:flex;align-items:center;gap:11px;padding:0;margin:0;}
.brand-mark{
  width:40px;height:40px;border-radius:14px;
  background:var(--g-brand);
  display:inline-flex;align-items:center;justify-content:center;
  color:#fff;font-size:17px;flex:0 0 40px;
  box-shadow:0 8px 20px rgba(108,75,255,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text .b1{font-size:13px;font-weight:700;color:var(--c-brand-500);letter-spacing:.04em;}
.brand-text .b2{font-size:18px;font-weight:800;color:var(--c-ink-900);}
.site-nav .nav-link{
  position:relative;
  padding:9px 15px;
  font-size:15px;font-weight:600;
  color:var(--c-ink-600);
  border-radius:999px;
  transition:all var(--t);
}
.site-nav .nav-link:hover{color:var(--c-brand-500);background:var(--c-brand-050);}
.site-nav .nav-link.active{color:var(--c-brand-500);background:var(--c-brand-050);}
.site-nav .nav-link.active::after{
  content:"";position:absolute;left:50%;transform:translateX(-50%);
  bottom:1px;width:26px;height:3px;border-radius:999px;background:var(--g-brand);
}
.nav-right{display:flex;align-items:center;gap:10px;}
.status-pill,.promo-pill{
  display:inline-flex;align-items:center;gap:7px;
  height:32px;padding:0 13px;border-radius:999px;
  font-size:12.5px;font-weight:600;white-space:nowrap;
}
.status-pill{color:var(--c-ink-600);background:var(--c-accent-050);border:1px solid rgba(34,211,197,.35);}
.status-dot{width:8px;height:8px;border-radius:50%;background:var(--c-accent-500);box-shadow:0 0 0 4px rgba(34,211,197,.18);}
.promo-pill{color:var(--c-hot-500);border:1px solid rgba(255,122,47,.45);background:var(--c-hot-050);}
.promo-pill b{font-variant-numeric:tabular-nums;font-weight:800;color:var(--c-hot-500);}
.btn{
  border-radius:var(--r-sm);font-weight:700;letter-spacing:.01em;
  transition:all var(--t);border:0;
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
}
.btn-primary{
  background:var(--g-brand);background-size:180% 180%;background-position:0% 50%;
  color:#fff;box-shadow:var(--sh-btn);padding:12px 24px;font-size:15px;
}
.btn-primary:hover,.btn-primary:focus{
  background-position:100% 50%;color:#fff;transform:translateY(-2px);
  box-shadow:0 16px 34px rgba(108,75,255,.4);
}
.btn-primary:active{transform:translateY(1px);box-shadow:0 6px 16px rgba(108,75,255,.3);}
.btn-primary.btn-sm{height:36px;padding:0 18px;font-size:14px;border-radius:12px;box-shadow:0 6px 16px rgba(108,75,255,.26);}
.btn-outline-brand{
  background:#fff;color:var(--c-brand-700);border:1.5px solid var(--c-brand-500);
  padding:11px 22px;font-size:15px;
}
.btn-outline-brand:hover{background:var(--c-brand-050);color:var(--c-brand-700);transform:translateY(-2px);}
.btn-ghost{
  background:rgba(255,255,255,.16);color:#fff;border:1px solid rgba(255,255,255,.3);
  padding:11px 22px;font-size:15px;
}
.btn-ghost:hover{background:rgba(255,255,255,.26);color:#fff;transform:translateY(-2px);}
.nav-toggle{
  width:42px;height:42px;border-radius:12px;border:1px solid var(--c-line);
  background:#fff;color:var(--c-brand-700);font-size:17px;
  display:inline-flex;align-items:center;justify-content:center;
}
.nav-drawer{width:86vw !important;max-width:340px;}
.nav-drawer .offcanvas-header{border-bottom:1px solid var(--c-line);padding:18px 20px;}
.drawer-title{font-weight:800;font-size:16px;}
.nav-drawer .offcanvas-body{padding:20px;display:flex;flex-direction:column;gap:9px;}
.drawer-link{
  display:block;padding:13px 16px;border-radius:var(--r-xs);
  font-weight:600;color:var(--c-ink-600);background:#fff;border:1px solid var(--c-line);
}
.drawer-link:hover{background:var(--c-brand-050);color:var(--c-brand-700);}
.drawer-link.active{background:var(--c-brand-050);color:var(--c-brand-500);border-color:var(--c-brand-200);}
.drawer-tip{margin-top:6px;font-size:13px;color:var(--c-ink-400);}

/* ---------- 通用 ---------- */
.section{padding:96px 0;}
.section-sm{padding:64px 0;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;color:var(--c-brand-700);
  background:var(--c-brand-050);border:1px solid var(--c-brand-200);
  padding:6px 14px;border-radius:999px;
}
.section-title{font-size:clamp(23px,2.6vw,34px);line-height:1.25;font-weight:800;margin-top:16px;}
.section-lead{color:var(--c-ink-600);font-size:16.5px;max-width:660px;margin-top:14px;}
.card-surface{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-md);box-shadow:var(--sh-1);
  transition:box-shadow var(--t),transform var(--t),border-color var(--t);
}
.card-surface:hover{box-shadow:var(--sh-2);transform:translateY(-4px);}
.pill-tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12.5px;font-weight:700;color:var(--c-brand-700);
  background:var(--c-brand-050);border-radius:999px;padding:5px 12px;
}
.divider-soft{height:1px;background:var(--c-line);border:0;margin:0;}

/* ---------- 面包屑 ---------- */
.crumb{
  display:flex;align-items:center;gap:9px;flex-wrap:wrap;
  font-size:13px;color:var(--c-ink-400);margin-bottom:14px;
}
.crumb a{color:var(--c-ink-400);}
.crumb a:hover{color:var(--c-brand-500);}
.crumb .sep{color:var(--c-ink-400);opacity:.7;}
.crumb .cur{color:var(--c-ink-900);font-weight:600;}

/* ---------- 内页 Hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  background:#fff;
  border-bottom:1px solid var(--c-line);
  padding:64px 0 60px;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  opacity:.16;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(255,255,255,.96) 0%,rgba(240,236,255,.9) 46%,rgba(228,251,248,.72) 100%);
}
.page-hero .container{position:relative;z-index:2;}
.page-hero h1{
  font-size:clamp(30px,4.2vw,50px);line-height:1.18;font-weight:800;
  max-width:900px;letter-spacing:-.02em;
}
.page-hero .lead-text{
  font-size:17px;color:var(--c-ink-600);max-width:640px;margin-top:18px;
}
.hero-underline{width:88px;height:5px;border-radius:999px;background:var(--g-brand);margin-top:24px;}
.anchor-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.anchor-chip{
  display:inline-flex;align-items:center;gap:7px;
  padding:9px 16px;border-radius:999px;font-size:13.5px;font-weight:600;
  background:#fff;border:1px solid var(--c-line);color:var(--c-ink-600);
  box-shadow:0 4px 14px rgba(76,46,216,.06);
}
.anchor-chip i{color:var(--c-brand-500);font-size:12px;}
.anchor-chip:hover{border-color:var(--c-brand-200);background:var(--c-brand-050);color:var(--c-brand-700);}
.hero-side{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);overflow:hidden;
}
.hero-side .cover{height:158px;overflow:hidden;}
.hero-side .cover img{width:100%;height:100%;object-fit:cover;}
.hero-side .body{padding:20px 22px;}
.hero-side .body h3{font-size:17px;line-height:1.4;}
.hero-side .body p{font-size:14px;color:var(--c-ink-600);margin-top:8px;}
.mini-list{display:flex;flex-direction:column;gap:10px;margin-top:14px;}
.mini-list li{display:flex;align-items:center;gap:9px;font-size:13.5px;color:var(--c-ink-600);}
.mini-list i{color:var(--c-accent-500);font-size:12px;}

/* ---------- 警告提示条 ---------- */
.alert-strip{
  background:var(--c-hot-050);
  border:1px solid rgba(255,122,47,.34);
  border-radius:var(--r-md);
  padding:16px 22px;
  display:flex;align-items:flex-start;gap:13px;
  box-shadow:0 8px 22px rgba(255,122,47,.09);
}
.alert-strip .ico{
  width:34px;height:34px;flex:0 0 34px;border-radius:11px;
  background:#fff;color:var(--c-hot-500);
  display:flex;align-items:center;justify-content:center;font-size:15px;
  border:1px solid rgba(255,122,47,.34);
}
.alert-strip .txt{font-size:14.5px;line-height:1.8;color:#7A3D13;}
.alert-strip .txt b{color:#B44E11;}

/* ---------- 环节四卡 ---------- */
.step-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.step-card{padding:24px;border-radius:var(--r-md);}
.step-card .icon-box{
  width:44px;height:44px;border-radius:14px;
  background:var(--c-brand-050);color:var(--c-brand-700);
  display:flex;align-items:center;justify-content:center;font-size:17px;
  border:1px solid var(--c-brand-200);
}
.step-card h3{font-size:16.5px;line-height:1.4;margin-top:16px;}
.step-card p{font-size:14px;color:var(--c-ink-600);margin-top:8px;line-height:1.75;}

/* ---------- 正文分块 ---------- */
.doc-layout{display:grid;grid-template-columns:minmax(0,1fr) 360px;gap:32px;align-items:start;}
.doc-block{padding:32px;border-radius:var(--r-lg);margin-bottom:24px;}
.doc-block:last-child{margin-bottom:0;}
.doc-block h2{
  font-size:23px;line-height:1.35;font-weight:800;position:relative;padding-left:16px;
}
.doc-block h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:999px;background:var(--g-brand);
}
.doc-block .sub{font-size:13px;color:var(--c-ink-400);margin-top:10px;padding-left:16px;}
.doc-block p{margin-top:14px;color:var(--c-ink-600);}
.doc-block p strong{color:var(--c-ink-900);}
.point-list{margin-top:16px;display:flex;flex-direction:column;gap:11px;}
.point-list li{
  position:relative;padding-left:24px;font-size:15.5px;color:var(--c-ink-600);line-height:1.8;
}
.point-list li::before{
  content:"";position:absolute;left:6px;top:11px;
  width:7px;height:7px;border-radius:50%;background:var(--c-brand-500);
  box-shadow:0 0 0 4px rgba(108,75,255,.13);
}
.doc-figure{margin-top:22px;border-radius:16px;overflow:hidden;border:1px solid var(--c-line);}
.doc-figure img{width:100%;aspect-ratio:21/9;object-fit:cover;}
.doc-figure figcaption{font-size:13px;color:var(--c-ink-400);text-align:center;padding:11px 12px;background:#FCFBFF;}
.note-box{
  margin-top:20px;background:var(--c-brand-050);
  border-left:3px solid var(--c-brand-500);border-radius:0 14px 14px 0;
  padding:16px 20px;font-size:15px;color:var(--c-ink-600);
}
.note-box b{color:var(--c-brand-700);}

/* ---------- 侧栏 ---------- */
.doc-side{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px;}
.side-card{padding:24px;border-radius:var(--r-md);}
.side-card .side-title{
  font-size:13px;font-weight:800;color:var(--c-ink-400);
  letter-spacing:.08em;margin-bottom:14px;
}
.toc{display:flex;flex-direction:column;gap:4px;}
.toc a{
  position:relative;display:block;padding:9px 12px 9px 14px;
  border-radius:10px;font-size:14.5px;color:var(--c-ink-600);font-weight:600;
}
.toc a::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:0;border-radius:999px;background:var(--g-brand);
  transition:height var(--t);
}
.toc a:hover{background:var(--c-brand-050);color:var(--c-brand-700);}
.toc a:hover::before{height:20px;}
.toc a.cur{color:var(--c-brand-500);background:var(--c-brand-050);}
.toc a.cur::before{height:22px;}
.contact-card{
  border-radius:var(--r-md);padding:24px;
  background:var(--c-brand-900);color:#fff;position:relative;overflow:hidden;
}
.contact-card::before{
  content:"";position:absolute;right:-60px;top:-60px;width:170px;height:170px;border-radius:50%;
  background:radial-gradient(circle,rgba(108,75,255,.55),rgba(108,75,255,0) 70%);
}
.contact-card .c-title{font-size:17px;font-weight:800;position:relative;}
.contact-card .c-desc{font-size:14px;color:rgba(255,255,255,.78);margin-top:10px;position:relative;}
.contact-card .c-line{
  display:flex;align-items:center;gap:9px;font-size:13.5px;color:rgba(255,255,255,.86);
  margin-top:12px;position:relative;
}
.contact-card .c-line i{color:var(--c-accent-500);}
.contact-card .btn{margin-top:18px;width:100%;position:relative;}

/* ---------- FAQ ---------- */
.faq-col{padding:0;}
.faq-title-col .sticky-inner{position:sticky;top:96px;}
.faq .accordion-item{
  border:1px solid var(--c-line);border-radius:var(--r-sm) !important;
  background:#fff;overflow:hidden;margin-bottom:12px;
}
.faq .accordion-item:has(.accordion-button:not(.collapsed)){
  box-shadow:var(--sh-2);border-color:var(--c-brand-200);
}
.faq .accordion-button{
  background:#FBF9FF;font-size:17px;font-weight:700;color:var(--c-ink-900);
  padding:20px 22px 20px 26px;box-shadow:none;position:relative;
  transition:background var(--t);
}
.faq .accordion-button::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:4px;
  background:var(--g-brand);transform:scaleY(0);transform-origin:top;
  transition:transform var(--t);
}
.faq .accordion-button:not(.collapsed){background:#fff;color:var(--c-brand-700);}
.faq .accordion-button:not(.collapsed)::before{transform:scaleY(1);}
.faq .accordion-button:focus{box-shadow:none;outline:none;}
.faq .accordion-button:focus-visible{outline:3px solid rgba(108,75,255,.35);outline-offset:-3px;}
.faq .accordion-button::after{
  content:"\f067";
  font-family:"Font Awesome 6 Free";font-weight:900;font-size:12px;
  background-image:none;width:28px;height:28px;flex:0 0 28px;
  display:flex;align-items:center;justify-content:center;
  border-radius:999px;background:var(--c-brand-050);color:var(--c-brand-700);
  margin-left:auto;transition:all var(--t);
}
.faq .accordion-button:not(.collapsed)::after{
  content:"\f068";background:var(--g-brand);color:#fff;transform:none;
}
.faq .accordion-body{
  padding:6px 26px 24px 26px;font-size:15.5px;line-height:1.85;color:var(--c-ink-600);
  background:#fff;
}
.faq .accordion-body ul{margin-top:10px;display:flex;flex-direction:column;gap:8px;}
.faq .accordion-body li{position:relative;padding-left:20px;}
.faq .accordion-body li::before{
  content:"";position:absolute;left:4px;top:11px;width:6px;height:6px;border-radius:50%;background:var(--c-accent-500);
}

/* ---------- 表单 ---------- */
.form-panel{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);padding:32px;
}
.form-label{font-size:13.5px;font-weight:700;color:var(--c-ink-900);margin-bottom:8px;display:block;}
.req{color:var(--c-hot-500);margin-left:3px;}
.form-control,.form-select{
  height:48px;border-radius:var(--r-xs);border:1px solid var(--c-line);
  padding:0 15px;font-size:15px;color:var(--c-ink-900);background:#fff;
  transition:all var(--t);box-shadow:none;
}
textarea.form-control{height:auto;min-height:118px;padding:13px 15px;line-height:1.75;resize:vertical;}
.form-control:focus,.form-select:focus{
  border-color:var(--c-brand-500);box-shadow:0 0 0 3px rgba(108,75,255,.14);background:#FCFBFF;
}
.form-check-input{width:18px;height:18px;border-radius:6px;border:1px solid var(--c-line);margin-top:3px;}
.form-check-input:checked{background-color:var(--c-brand-500);border-color:var(--c-brand-500);}
.form-check-input:focus{box-shadow:0 0 0 3px rgba(108,75,255,.18);border-color:var(--c-brand-500);}
.form-check-label{font-size:14px;color:var(--c-ink-600);}
.form-hint{font-size:12.5px;color:var(--c-ink-400);margin-top:8px;}

/* ---------- 结尾 CTA 带 ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:28px;
  background:linear-gradient(120deg,#1B1039 0%,#2A1B5E 46%,#3B2478 100%);
  padding:56px 48px;color:#fff;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;opacity:.22;
}
.cta-band::after{
  content:"";position:absolute;right:-90px;top:-90px;width:300px;height:300px;border-radius:50%;
  background:radial-gradient(circle,rgba(108,75,255,.6),rgba(108,75,255,0) 70%);
}
.cta-band .inner{position:relative;z-index:2;}
.cta-band h2{color:#fff;font-size:clamp(22px,2.4vw,30px);line-height:1.3;}
.cta-band p{color:rgba(255,255,255,.8);margin-top:12px;max-width:560px;font-size:15.5px;}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:26px;bottom:26px;z-index:1020;
  width:48px;height:48px;border-radius:14px;border:1px solid var(--c-line);
  background:#fff;color:var(--c-brand-700);box-shadow:var(--sh-2);
  display:flex;align-items:center;justify-content:center;font-size:16px;
  opacity:0;pointer-events:none;transition:all var(--t);
}
.to-top.show{opacity:1;pointer-events:auto;}
.to-top:hover{background:var(--c-brand-050);transform:translateY(-3px);}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--c-brand-900);color:rgba(255,255,255,.82);
  padding:72px 0 0;position:relative;margin-top:96px;
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;background:var(--g-brand);
}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:18px;}
.footer-brand .brand-text .b1{color:#B9A8FF;}
.footer-brand .brand-text .b2{color:#fff;}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.72);margin-bottom:12px;}
.footer-title{font-size:14px;font-weight:800;color:#fff;margin-bottom:16px;}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a,.footer-links span{font-size:14px;color:rgba(255,255,255,.72);}
.footer-links a:hover{color:#fff;}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0;display:flex;flex-wrap:wrap;gap:10px;
  justify-content:space-between;font-size:13px;color:rgba(255,255,255,.62);
}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .55s ease,transform .55s cubic-bezier(.2,.7,.3,1);}
.reveal.in{opacity:1;transform:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .doc-layout{grid-template-columns:minmax(0,1fr) 320px;gap:26px;}
}
@media (max-width:991px){
  .site-nav,.site-nav .container{height:60px;}
  .section{padding:64px 0;}
  .section-sm{padding:48px 0;}
  .step-grid{grid-template-columns:repeat(2,1fr);}
  .doc-layout{grid-template-columns:1fr;}
  .doc-side{position:static;}
  .faq-title-col .sticky-inner{position:static;}
  .page-hero{padding:44px 0 44px;}
  .cta-band{padding:44px 28px;border-radius:22px;}
  .site-footer{padding-top:56px;margin-top:64px;}
}
@media (max-width:767px){
  .container{padding-left:18px;padding-right:18px;}
  body{font-size:16px;}
  .section{padding:48px 0;}
  .section-sm{padding:40px 0;}
  .doc-block{padding:24px;}
  .form-panel{padding:24px;}
  .cta-band{padding:36px 22px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:575px){
  .step-grid{grid-template-columns:1fr;}
  .page-hero h1{font-size:clamp(26px,7.4vw,34px);}
  .hero-actions .btn{width:100%;}
  .anchor-chip{font-size:13px;padding:8px 13px;}
  .to-top{right:16px;bottom:16px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}