/* roulang page: index */
:root{
  --brand:#2F6BFF;
  --brand-dark:#1B4ED8;
  --accent:#FF7A45;
  --ok:#12B886;
  --danger:#E5484D;
  --bg:#F5F8FE;
  --surface:#FFFFFF;
  --ink:#0E1A2B;
  --text:#33415C;
  --muted:#6B7A99;
  --disabled:#A9B4C7;
  --line:#E4EBF7;
  --dark:#0F1E3D;
  --soft:#EDF2FC;
  --sp-1:4px;
  --sp-2:8px;
  --sp-3:12px;
  --sp-4:16px;
  --sp-5:24px;
  --sp-6:32px;
  --sp-7:48px;
  --sp-8:72px;
  --r-card:18px;
  --r-lg:24px;
  --r-input:14px;
  --r-pill:999px;
  --sh-card:0 6px 24px rgba(16,42,86,.08);
  --sh-hover:0 14px 34px rgba(16,42,86,.14);
  --sh-nav:0 4px 16px rgba(16,42,86,.08);
  --bs-primary:#2F6BFF;
  --bs-body-color:#33415C;
  --bs-border-color:#E4EBF7;
  --bs-body-bg:#F5F8FE;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-dark);text-decoration:underline;text-underline-offset:3px}
button{font-family:inherit}
h1,h2,h3,h4{color:var(--ink);margin:0;font-weight:700}
p{margin:0 0 16px}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.num{font-variant-numeric:tabular-nums}

.container,
.container-sm,
.container-md,
.container-lg,
.container-xl{max-width:1200px;padding-left:24px;padding-right:24px}

.section{padding:var(--sp-8) 0}
.section-alt{background:var(--surface)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px}
.section-head h2{font-size:clamp(24px,3vw,32px);line-height:1.3;font-weight:700;letter-spacing:.2px}
.section-head p{margin:8px 0 0;font-size:15px;color:var(--muted);max-width:640px}
.section-more{flex:0 0 auto;font-size:15px;font-weight:600;white-space:nowrap}

.btn-x{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:12px 24px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;line-height:1.2;border:1px solid transparent;
  cursor:pointer;transition:transform .22s ease,background-color .22s ease,box-shadow .22s ease,color .22s ease;
}
.btn-x:hover{text-decoration:none;transform:translateY(-2px)}
.btn-x:active{transform:translateY(1px)}
.btn-brand{background:var(--brand);color:#fff;box-shadow:0 8px 20px rgba(47,107,255,.22)}
.btn-brand:hover{background:#3f78ff;color:#fff}
.btn-brand:active{background:var(--brand-dark)}
.btn-outline{background:#fff;color:var(--brand);border-color:var(--brand)}
.btn-outline:hover{background:#F0F5FF;color:var(--brand-dark)}
.btn-ghost{background:transparent;color:var(--brand);border-color:#C9DAFF}
.btn-ghost:hover{background:#F0F5FF;color:var(--brand-dark)}
.btn-on-dark{background:#fff;color:var(--brand);border-color:#fff}
.btn-on-dark:hover{background:#F0F5FF;color:var(--brand-dark)}
.btn-sm-x{min-height:38px;padding:8px 18px;font-size:14px}

.tag{
  display:inline-flex;align-items:center;gap:6px;
  background:#EAF1FF;color:var(--brand);font-size:12px;font-weight:600;
  padding:4px 10px;border-radius:var(--r-pill);line-height:1.5;
}
.tag-accent{background:#FFF1EA;color:#D9541F}
.tag-ok{background:#E7F8F1;color:#0E8F6B}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.92);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-stuck{box-shadow:var(--sh-nav)}
.nav-wrap{display:flex;align-items:center;gap:24px;min-height:72px}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);font-size:17px;font-weight:700;letter-spacing:.2px;flex:0 0 auto}
.brand:hover{color:var(--brand);text-decoration:none}
.brand-mark{
  width:28px;height:28px;border-radius:9px;flex:0 0 auto;
  background:linear-gradient(135deg,#2F6BFF 0%,#5B8BFF 100%);
  display:inline-flex;align-items:center;justify-content:center;color:#fff;font-size:13px;
}
.nav-menu{display:flex;align-items:center;gap:28px;margin-left:12px}
.nav-menu a{position:relative;font-size:15px;color:var(--text);font-weight:500;padding:6px 0}
.nav-menu a:hover{color:var(--brand);text-decoration:none}
.nav-menu a.active{color:var(--brand);font-weight:600}
.nav-menu a.active::after{
  content:"";position:absolute;left:0;bottom:-2px;width:22px;height:3px;border-radius:3px;background:var(--brand);
}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.nav-toggle{
  display:none;margin-left:auto;width:44px;height:44px;border-radius:14px;
  border:1px solid var(--line);background:#fff;color:var(--ink);font-size:18px;
  align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle:hover{color:var(--brand);border-color:#C9DAFF}
.nav-drawer{max-width:86vw;width:340px}
.nav-drawer .offcanvas-header{border-bottom:1px solid var(--line);padding:18px 20px}
.nav-drawer .offcanvas-title{font-size:16px;font-weight:700;color:var(--ink)}
.drawer-close{background:none;border:0;font-size:20px;color:var(--muted);cursor:pointer;line-height:1}
.drawer-close:hover{color:var(--brand)}
.nav-drawer .offcanvas-body{padding:16px 20px;display:flex;flex-direction:column}
.drawer-links{display:flex;flex-direction:column;gap:4px}
.drawer-links a{display:flex;align-items:center;justify-content:space-between;padding:14px 4px;font-size:16px;color:var(--text);border-bottom:1px solid var(--line)}
.drawer-links a.active{color:var(--brand);font-weight:600}
.drawer-links a i{font-size:13px;color:var(--disabled)}
.drawer-foot{margin-top:auto;padding:20px;border-top:1px solid var(--line);display:grid;gap:10px}
@media (max-width:991.98px){
  .nav-menu,.nav-actions{display:none}
  .nav-toggle{display:inline-flex}
}
@media (max-width:575.98px){
  .brand-text{font-size:15px}
}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--bg);padding:56px 0 64px}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(47,107,255,.5) 1px,transparent 1px);
  background-size:22px 22px;opacity:.06;
}
.hero-grid{position:relative;display:grid;grid-template-columns:minmax(0,1fr) 360px;gap:56px;align-items:center}
.hero-copy{max-width:560px}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;background:#EAF1FF;color:var(--brand);
  font-size:13px;font-weight:600;padding:6px 14px;border-radius:var(--r-pill);
}
.hero h1{
  font-size:clamp(30px,4.4vw,46px);line-height:1.22;font-weight:700;color:var(--ink);
  margin:18px 0 16px;letter-spacing:.2px;
}
.hero-sub{font-size:17px;line-height:1.8;color:var(--text);margin-bottom:28px;max-width:520px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:28px}
.hero-points{display:flex;flex-wrap:wrap;gap:24px;font-size:14px;color:var(--muted)}
.hero-points span{display:inline-flex;align-items:center;gap:8px}
.hero-points i{font-size:12px;color:var(--brand)}
.hero-visual{justify-self:end;width:100%;max-width:360px}
.v-card{
  position:relative;aspect-ratio:9/16;border-radius:var(--r-lg);overflow:hidden;
  background:var(--soft);box-shadow:var(--sh-card);border:1px solid rgba(47,107,255,.10);
}
.v-card img{width:100%;height:100%;object-fit:cover}
.v-shade{position:absolute;inset:0;background:linear-gradient(180deg,rgba(15,30,61,0) 42%,rgba(15,30,61,.72) 100%)}
.v-time{
  position:absolute;top:12px;right:12px;background:rgba(15,30,61,.72);color:#fff;
  font-size:12px;padding:3px 9px;border-radius:8px;display:inline-flex;align-items:center;gap:5px;
}
.v-play{
  position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
  width:64px;height:64px;border-radius:50%;background:rgba(255,255,255,.94);
  display:flex;align-items:center;justify-content:center;color:var(--brand);font-size:20px;
  box-shadow:0 10px 26px rgba(15,30,61,.24);
}
.v-note{
  position:absolute;left:16px;right:16px;bottom:16px;margin:0;color:#fff;
  font-size:13px;line-height:1.6;font-weight:500;
}
@media (max-width:991.98px){
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-visual{justify-self:center;max-width:320px}
  .hero{padding:44px 0 52px}
}

/* ---------- 横滑轨道 ---------- */
.rail-outer{width:100%}
.rail{
  display:flex;gap:16px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:8px 24px 20px;scrollbar-width:thin;
}
.rail::-webkit-scrollbar{height:6px}
.rail::-webkit-scrollbar-track{background:transparent}
.rail::-webkit-scrollbar-thumb{background:#D7E2F7;border-radius:99px}
.rail-item{flex:0 0 calc(25% - 16px);max-width:320px;scroll-snap-align:start}
@media (min-width:1248px){
  .rail{padding-left:calc((100vw - 1200px)/2);padding-right:calc((100vw - 1200px)/2)}
}
.clip-card{
  display:flex;flex-direction:column;height:100%;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-card);overflow:hidden;transition:transform .28s ease,box-shadow .28s ease;
}
.clip-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover)}
.clip-thumb{position:relative;aspect-ratio:9/16;background:var(--soft);overflow:hidden}
.clip-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.clip-card:hover .clip-thumb img{transform:scale(1.04)}
.clip-stats{position:absolute;left:10px;bottom:10px;display:flex;gap:6px}
.stat-badge{
  background:rgba(15,30,61,.72);color:#fff;font-size:12px;padding:3px 9px;
  border-radius:8px;display:inline-flex;align-items:center;gap:5px;
}
.clip-body{padding:16px;display:flex;flex-direction:column;gap:10px;flex:1}
.clip-title{
  font-size:16px;font-weight:600;color:var(--ink);line-height:1.5;margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.clip-card:hover .clip-title{color:var(--brand)}
.clip-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:8px}
@media (max-width:1199.98px){
  .rail-item{flex:0 0 42%}
}
@media (max-width:991.98px){
  .rail-item{flex:0 0 54vw;max-width:none}
}
@media (max-width:767.98px){
  .rail-item{flex:0 0 78vw}
}

/* ---------- 注册步骤 ---------- */
.steps-panel{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-card);padding:32px;
}
.step{display:grid;grid-template-columns:96px 1px minmax(0,1fr);gap:24px;padding-bottom:32px}
.step:last-child{padding-bottom:0}
.step-num{
  font-size:40px;font-weight:700;line-height:1;color:rgba(47,107,255,.30);
  font-variant-numeric:tabular-nums;padding-top:2px;
}
.step-line{position:relative;background:var(--line);border-radius:2px}
.step-line::before{
  content:"";position:absolute;top:0;left:-2px;width:5px;height:5px;border-radius:50%;background:var(--brand);
}
.step:last-child .step-line{background:transparent}
.step-body h3{font-size:20px;line-height:1.4;font-weight:600;margin-bottom:8px}
.step-body p{font-size:15px;line-height:1.8;color:var(--text);margin-bottom:8px}
.step-note{display:inline-flex;align-items:flex-start;gap:8px;font-size:14px;color:var(--muted)}
.step-note i{color:var(--accent);font-size:13px;margin-top:5px}
@media (max-width:767.98px){
  .steps-panel{padding:22px}
  .step{grid-template-columns:56px 1px minmax(0,1fr);gap:16px;padding-bottom:26px}
  .step-num{font-size:30px}
}

/* ---------- 安全要点 ---------- */
.safety-grid{display:grid;grid-template-columns:minmax(0,0.9fr) minmax(0,1.1fr);gap:32px;align-items:start}
.safety-lead{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:32px;box-shadow:var(--sh-card);
}
.safety-lead h2{font-size:clamp(24px,3vw,32px);line-height:1.3;margin-bottom:14px}
.safety-lead p{font-size:15px;line-height:1.85;color:var(--text)}
.safety-stats{display:flex;gap:32px;margin-top:24px;flex-wrap:wrap}
.safety-stats div strong{display:block;font-size:40px;line-height:1;color:var(--brand);font-variant-numeric:tabular-nums}
.safety-stats div span{font-size:13px;color:var(--muted)}
.safety-list{display:grid;gap:14px}
.safety-row{
  display:flex;gap:16px;align-items:flex-start;background:var(--surface);
  border:1px solid var(--line);border-left:3px solid var(--brand);
  border-radius:16px;padding:20px 22px;box-shadow:var(--sh-card);
  transition:transform .25s ease,box-shadow .25s ease;
}
.safety-row:hover{transform:translateY(-3px);box-shadow:var(--sh-hover)}
.safety-row i{font-size:20px;color:var(--brand);margin-top:4px}
.safety-row h3{font-size:17px;font-weight:600;margin-bottom:4px}
.safety-row p{font-size:14px;line-height:1.75;color:var(--muted);margin:0}
@media (max-width:991.98px){
  .safety-grid{grid-template-columns:1fr;gap:24px}
}

/* ---------- 最新信息 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.news-item{
  display:flex;gap:16px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);padding:16px;box-shadow:var(--sh-card);
  transition:transform .28s ease,box-shadow .28s ease;
}
.news-item:hover{transform:translateY(-4px);box-shadow:var(--sh-hover)}
.news-thumb{
  flex:0 0 120px;height:68px;border-radius:12px;overflow:hidden;
  background:var(--soft);border:1px solid rgba(47,107,255,.10);
}
.news-thumb img{width:100%;height:100%;object-fit:cover}
.news-main{min-width:0;display:flex;flex-direction:column;gap:6px}
.news-title{
  font-size:17px;font-weight:600;color:var(--ink);line-height:1.5;margin:0;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.news-item:hover .news-title{color:var(--brand)}
.news-ex{
  font-size:14px;line-height:1.75;color:var(--muted);margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--muted);margin-top:auto}
.news-meta i{font-size:11px}
.news-empty{
  border:1px dashed #C9DAFF;border-radius:var(--r-card);background:#FBFDFF;
  padding:48px 24px;text-align:center;
}
.news-empty i{font-size:26px;color:var(--disabled)}
.news-empty p{margin:12px 0 6px;color:var(--muted);font-size:15px}
@media (max-width:991.98px){
  .news-grid{grid-template-columns:1fr}
}
@media (max-width:575.98px){
  .news-thumb{flex:0 0 96px;height:56px}
}

/* ---------- 口碑条 ---------- */
.voices{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.voice-rail{display:flex;gap:16px;overflow-x:auto;padding:8px 24px 20px;scroll-snap-type:x proximity}
.voice-rail::-webkit-scrollbar{height:6px}
.voice-rail::-webkit-scrollbar-thumb{background:#D7E2F7;border-radius:99px}
.voice-card{
  flex:0 0 300px;scroll-snap-align:start;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);padding:22px;box-shadow:var(--sh-card);
  transition:transform .25s ease,box-shadow .25s ease;
}
.voice-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover)}
.voice-top{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.avatar{
  width:60px;height:60px;border-radius:50%;background:#EAF1FF;color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:700;flex:0 0 auto;
}
.voice-name{font-size:15px;font-weight:600;color:var(--ink);line-height:1.4}
.voice-role{font-size:13px;color:var(--muted)}
.stars{color:var(--accent);font-size:12px;letter-spacing:2px;margin-bottom:8px}
.voice-text{
  font-size:14px;line-height:1.8;color:var(--text);margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
@media (min-width:1248px){
  .voice-rail{padding-left:calc((100vw - 1200px)/2);padding-right:calc((100vw - 1200px)/2)}
}

/* ---------- FAQ ---------- */
.faq-accordion .accordion-item{
  border:0;border-radius:16px;background:var(--surface);margin-bottom:12px;
  box-shadow:var(--sh-card);overflow:hidden;
}
.faq-accordion .accordion-button{
  font-size:17px;font-weight:600;color:var(--ink);background:var(--surface);
  padding:20px 24px;box-shadow:none;border-radius:16px;
}
.faq-accordion .accordion-button:not(.collapsed){
  color:var(--brand);background:#FBFDFF;box-shadow:inset 3px 0 0 var(--brand);
}
.faq-accordion .accordion-button:focus{box-shadow:inset 3px 0 0 var(--brand)}
.faq-accordion .accordion-button::after{
  content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;
  background-image:none;width:auto;height:auto;font-size:13px;color:var(--brand);
  transform:none;transition:transform .25s ease;
}
.faq-accordion .accordion-button:not(.collapsed)::after{content:"\f068";transform:rotate(180deg)}
.faq-accordion .accordion-body{padding:4px 24px 22px;font-size:15px;line-height:1.85;color:var(--text)}

/* ---------- CTA 条 ---------- */
.cta-band{background:var(--dark);padding:56px 0}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-inner h2{color:#fff;font-size:clamp(22px,2.6vw,30px);line-height:1.35;margin-bottom:10px}
.cta-inner p{color:#C7D3E8;font-size:15px;margin:0;max-width:620px}
@media (max-width:767.98px){
  .cta-inner{flex-direction:column;align-items:flex-start}
  .cta-inner .btn-x{width:100%}
}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:#C7D3E8;padding:56px 0 0;border-top:1px solid rgba(255,255,255,.12)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;padding-bottom:40px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:16px;font-weight:700;margin-bottom:14px}
.footer-brand .brand-mark{background:linear-gradient(135deg,#2F6BFF,#5B8BFF)}
.footer-grid p{font-size:14px;line-height:1.8;color:#9FB0CE;margin:0;max-width:320px}
.footer-col h3{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{color:#C7D3E8;font-size:14px}
.footer-col a:hover{color:#7FA4FF;text-decoration:underline}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:20px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#8798B8;
}
@media (max-width:991.98px){
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:575.98px){
  .footer-grid{grid-template-columns:1fr;gap:28px}
}

/* ---------- 移动吸底 ---------- */
.mobile-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:1040;
  background:#fff;border-top:1px solid var(--line);
  padding:10px 16px;display:flex;align-items:center;gap:12px;
  transform:translateY(120%);transition:transform .3s ease;
  box-shadow:0 -6px 20px rgba(16,42,86,.10);
}
.mobile-bar.show{transform:translateY(0)}
.mobile-bar .btn-x{flex:1}
.mobile-bar .bar-close{background:none;border:0;color:var(--disabled);font-size:16px;cursor:pointer;padding:6px}
@media (min-width:768px){
  .mobile-bar{display:none}
}

/* ---------- 响应式统一 ---------- */
@media (max-width:991.98px){
  .section{padding:56px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:24px}
}
@media (max-width:767.98px){
  .section{padding:48px 0}
  .container,.container-sm,.container-md,.container-lg,.container-xl{padding-left:16px;padding-right:16px}
  .hero h1{font-size:30px}
  .hero-cta .btn-x{width:100%}
  .hero-points{gap:14px}
}
@media (max-width:575.98px){
  body{font-size:15.5px}
  .hero h1{font-size:28px}
  .safety-stats div strong{font-size:32px}
  .rail-item{flex:0 0 82vw}
}

/* roulang page: article */
:root{
  --primary:#2F6BFF;
  --primary-dark:#1B4ED8;
  --primary-soft:#EAF1FF;
  --accent:#FF7A45;
  --success:#12B886;
  --danger:#E5484D;
  --bg:#F5F8FE;
  --surface:#FFFFFF;
  --footer-bg:#0F1E3D;
  --ink:#0E1A2B;
  --text:#33415C;
  --muted:#6B7A99;
  --disabled:#A9B4C7;
  --border:#E4EBF7;
  --sp-1:4px; --sp-2:8px; --sp-3:12px; --sp-4:16px;
  --sp-5:24px; --sp-6:32px; --sp-7:48px; --sp-8:72px;
  --radius-card:18px;
  --radius-lg:24px;
  --radius-input:14px;
  --shadow-card:0 6px 24px rgba(16,42,86,.08);
  --shadow-hover:0 14px 34px rgba(16,42,86,.14);
  --shadow-sticky:0 4px 16px rgba(16,42,86,.08);
  --font: "PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--primary-dark);text-decoration:underline;text-underline-offset:3px;}
h1,h2,h3,h4,h5{color:var(--ink);margin:0 0 var(--sp-4);font-weight:700;}
p{margin:0 0 var(--sp-4);}
ul,ol{margin:0 0 var(--sp-4);padding-left:1.25em;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
.container{max-width:1200px;padding-left:24px;padding-right:24px;margin:0 auto;}
.num{font-variant-numeric:tabular-nums;}

/* ---------- 按钮 ---------- */
.btn-pill{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:12px 24px;border-radius:999px;
  font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;
  cursor:pointer;transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease;
}
.btn-pill i{font-size:14px;}
.btn-main{background:var(--primary);color:#fff;box-shadow:0 8px 20px rgba(47,107,255,.24);}
.btn-main:hover{background:#3d78ff;color:#fff;text-decoration:none;transform:translateY(-2px);box-shadow:0 12px 26px rgba(47,107,255,.3);}
.btn-main:active{background:var(--primary-dark);transform:translateY(1px);}
.btn-outline-main{background:#fff;color:var(--primary);border-color:rgba(47,107,255,.45);}
.btn-outline-main:hover{background:var(--primary-soft);color:var(--primary-dark);text-decoration:none;transform:translateY(-2px);}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 8px 20px rgba(255,122,69,.26);}
.btn-accent:hover{background:#ff8b5c;color:#fff;text-decoration:none;transform:translateY(-2px);}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--border);}
.btn-ghost:hover{background:#fff;color:var(--primary);text-decoration:none;}
.btn-sm-pill{min-height:38px;padding:9px 18px;font-size:14px;border-radius:14px;}
.btn-block-mobile{width:auto;}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.92);
  backdrop-filter:saturate(180%) blur(8px);
  -webkit-backdrop-filter:saturate(180%) blur(8px);
  border-bottom:1px solid var(--border);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:var(--sp-5);min-height:74px;
}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  font-size:18px;font-weight:700;color:var(--ink);letter-spacing:.2px;white-space:nowrap;
}
.brand:hover{color:var(--primary);text-decoration:none;}
.brand-mark{
  width:28px;height:28px;border-radius:9px;flex:0 0 28px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--primary),#5b8dff);
  color:#fff;font-size:13px;
  box-shadow:0 4px 12px rgba(47,107,255,.32);
}
.nav-menu{display:flex;align-items:center;gap:28px;}
.nav-menu a{
  position:relative;font-size:15px;color:var(--text);font-weight:500;padding:6px 0;white-space:nowrap;
}
.nav-menu a:hover{color:var(--primary);text-decoration:none;}
.nav-menu a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:var(--primary);transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.nav-menu a:hover::after,.nav-menu a.active::after{transform:scaleX(1);}
.nav-menu a.active{color:var(--primary);font-weight:600;}
.header-actions{display:flex;align-items:center;gap:12px;}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:14px;border:1px solid var(--border);
  background:#fff;color:var(--ink);font-size:18px;cursor:pointer;
}
.nav-toggle:hover{border-color:rgba(47,107,255,.4);color:var(--primary);}
.offcanvas{max-width:86vw;}
.offcanvas-header{border-bottom:1px solid var(--border);}
.offcanvas-body{display:flex;flex-direction:column;padding:var(--sp-5);}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:auto;}
.drawer-nav a{
  padding:13px 4px;font-size:16px;color:var(--text);border-bottom:1px solid var(--border);font-weight:500;
}
.drawer-nav a.active{color:var(--primary);font-weight:700;}
.drawer-cta{margin-top:var(--sp-5);display:flex;flex-direction:column;gap:12px;}
.drawer-cta .btn-pill{width:100%;}

/* ---------- 文章区 ---------- */
.page-wrap{padding:var(--sp-6) 0 var(--sp-8);}
.crumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:13px;color:var(--muted);margin-bottom:var(--sp-5);
}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--primary);}
.crumb .sep{color:var(--disabled);}
.crumb .current{
  color:var(--muted);max-width:280px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.article-layout{display:block;}
.article-card{
  background:var(--surface);border:1px solid rgba(47,107,255,.10);
  border-radius:var(--radius-lg);box-shadow:var(--shadow-card);
  padding:var(--sp-7) var(--sp-7) var(--sp-6);
}
.article-head{border-bottom:1px solid var(--border);padding-bottom:var(--sp-5);margin-bottom:var(--sp-6);}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:999px;
  background:var(--primary-soft);color:var(--primary);
  font-size:12px;font-weight:600;line-height:1.6;
}
.chip-accent{background:#FFF1EA;color:#D9531F;}
.chip-line{background:#fff;color:var(--primary);border:1px solid rgba(47,107,255,.35);}
.article-head h1{
  font-size:clamp(26px,3.2vw,38px);line-height:1.35;font-weight:700;
  margin:var(--sp-4) 0 var(--sp-4);
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:18px;
  font-size:13px;color:var(--muted);
}
.article-meta span{display:inline-flex;align-items:center;gap:6px;}
.avatar-dot{
  width:26px;height:26px;border-radius:50%;
  background:var(--primary-soft);color:var(--primary);
  display:inline-flex;align-items:center;justify-content:center;font-size:12px;
}
.article-body{
  max-width:820px;margin:0 auto;font-size:17px;line-height:1.9;color:var(--text);
  overflow-wrap:break-word;
}
.article-body > *:first-child{margin-top:0;}
.article-body h2{
  position:relative;font-size:clamp(20px,2.4vw,26px);line-height:1.4;
  margin:40px 0 16px;padding-left:14px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:7px;bottom:7px;width:4px;border-radius:2px;background:var(--primary);
}
.article-body h3{font-size:19px;font-weight:600;margin:28px 0 12px;}
.article-body p{margin-bottom:20px;}
.article-body ul,.article-body ol{margin-bottom:20px;padding-left:1.35em;}
.article-body li{margin-bottom:8px;}
.article-body ol{counter-reset:step;list-style:none;padding-left:0;}
.article-body ol > li{
  position:relative;padding-left:38px;margin-bottom:12px;counter-increment:step;
}
.article-body ol > li::before{
  content:counter(step);position:absolute;left:0;top:3px;
  width:24px;height:24px;border-radius:50%;
  background:var(--primary);color:#fff;font-size:13px;font-weight:700;
  display:inline-flex;align-items:center;justify-content:center;
}
.article-body blockquote{
  margin:24px 0;padding:16px 20px;
  border-left:4px solid var(--primary);background:#F0F5FF;border-radius:0 14px 14px 0;
  color:var(--text);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:16px;margin:20px auto;border:1px solid var(--border);}
.article-body code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  background:#F2F5FB;color:#1B4ED8;padding:2px 6px;border-radius:6px;font-size:14px;
}
.article-body pre{
  background:#F2F5FB;border:1px solid var(--border);border-radius:14px;
  padding:16px;overflow-x:auto;font-size:14px;line-height:1.7;
}
.article-body pre code{background:none;padding:0;}
.article-body table{
  width:100%;border-collapse:separate;border-spacing:0;
  margin:22px 0;font-size:15px;
  border:1px solid var(--border);border-radius:14px;overflow:hidden;
}
.article-body th{background:#F0F5FF;color:var(--ink);font-weight:600;text-align:left;}
.article-body th,.article-body td{padding:12px 16px;border-bottom:1px solid var(--border);}
.article-body tr:last-child td{border-bottom:none;}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:-8px;}
.article-body hr{border:none;border-top:1px solid var(--border);margin:32px 0;}

.empty-state{
  max-width:820px;margin:0 auto;text-align:center;
  padding:var(--sp-8) var(--sp-5);
  border:1px dashed #C9D6EE;border-radius:var(--radius-card);background:#FAFCFF;
}
.empty-state .icon{
  width:56px;height:56px;border-radius:16px;margin:0 auto var(--sp-4);
  background:var(--primary-soft);color:var(--primary);
  display:flex;align-items:center;justify-content:center;font-size:22px;
}
.empty-state h2{font-size:20px;margin-bottom:10px;}
.empty-state p{color:var(--muted);font-size:15px;margin-bottom:var(--sp-5);}

/* ---------- 相关推荐 ---------- */
.related{margin-top:var(--sp-8);}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:var(--sp-4);
  margin-bottom:var(--sp-5);
}
.section-head h2{font-size:clamp(20px,2.4vw,26px);margin:0;}
.section-head .more-link{font-size:14px;font-weight:600;white-space:nowrap;}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--sp-5);}
.related-card{
  display:block;background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-card);box-shadow:var(--shadow-card);
  overflow:hidden;transition:transform .22s ease,box-shadow .22s ease;
  color:var(--text);height:100%;
}
.related-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);text-decoration:none;color:var(--text);}
.related-thumb{position:relative;aspect-ratio:16/9;background:#EDF2FC;overflow:hidden;}
.related-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.related-card:hover .related-thumb img{transform:scale(1.04);}
.related-body{padding:var(--sp-5);}
.related-body h3{font-size:17px;line-height:1.5;font-weight:600;margin:10px 0 8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.related-body p{font-size:14px;line-height:1.75;color:var(--muted);margin:0 0 12px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.meta-row{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--muted);}
.meta-row i{color:var(--primary);}

/* ---------- CTA ---------- */
.cta-card{
  margin-top:var(--sp-7);
  background:linear-gradient(180deg,#F0F5FF 0%,#FFFFFF 100%);
  border:1px solid rgba(47,107,255,.16);
  border-radius:var(--radius-lg);
  padding:var(--sp-7);
  display:flex;align-items:center;justify-content:space-between;gap:var(--sp-6);flex-wrap:wrap;
}
.cta-card h2{font-size:clamp(20px,2.3vw,24px);margin-bottom:8px;}
.cta-card p{margin:0;color:var(--muted);font-size:15px;max-width:640px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--footer-bg);color:#C7D3E8;margin-top:var(--sp-8);padding:var(--sp-8) 0 var(--sp-5);border-top:1px solid rgba(255,255,255,.12);}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:var(--sp-7) var(--sp-6);
  padding-bottom:var(--sp-6);border-bottom:1px solid rgba(255,255,255,.12);
}
.footer-brand{
  display:flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:700;margin-bottom:var(--sp-4);
}
.footer-brand .brand-mark{background:linear-gradient(135deg,var(--primary),#5b8dff);}
.footer-col p{font-size:14px;line-height:1.8;color:#9FB0CE;margin:0;}
.footer-col h3{color:#fff;font-size:15px;font-weight:600;margin-bottom:var(--sp-4);}
.footer-col ul{list-style:none;padding:0;margin:0;}
.footer-col li{margin-bottom:10px;}
.footer-col a{color:#C7D3E8;font-size:14px;}
.footer-col a:hover{color:#fff;text-decoration:underline;}
.footer-bottom{
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;
  padding-top:var(--sp-5);font-size:13px;color:#8698BA;
}

@media (max-width:1199.98px){
  .related-grid{grid-template-columns:repeat(3,1fr);}
}
@media (max-width:991.98px){
  .nav-menu{display:none;}
  .header-actions .btn-pill.d-none-mobile{display:none;}
  .nav-toggle{display:inline-flex;}
  .article-card{padding:var(--sp-6) var(--sp-5);}
  .related-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:var(--sp-6);}
}
@media (max-width:767.98px){
  body{font-size:16px;}
  .container{padding-left:16px;padding-right:16px;}
  .page-wrap{padding:var(--sp-5) 0 var(--sp-7);}
  .article-body{font-size:16px;line-height:1.85;}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap;}
  .related-grid{grid-template-columns:1fr;}
  .cta-card{padding:var(--sp-6) var(--sp-5);}
  .cta-actions{width:100%;}
  .cta-actions .btn-pill{width:100%;}
  .btn-block-mobile{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:var(--sp-6);}
  .footer-bottom{flex-direction:column;}
}
@media (max-width:520px){
  .brand{font-size:16px;}
  .article-head h1{font-size:24px;}
  .article-card{padding:var(--sp-5) var(--sp-4);}
  .article-body h2{font-size:20px;}
}

/* roulang page: category1 */
:root{
  --brand:#2F6BFF;
  --brand-dark:#1B4ED8;
  --accent:#FF7A45;
  --success:#12B886;
  --danger:#E5484D;
  --bg:#F5F8FE;
  --surface:#FFFFFF;
  --ink:#0E1A2B;
  --text:#33415C;
  --muted:#6B7A99;
  --disabled:#A9B4C7;
  --line:#E4EBF7;
  --dark:#0F1E3D;
  --soft-blue:#F0F5FF;
  --r-card:18px;
  --r-lg:24px;
  --r-input:14px;
  --sh-card:0 6px 24px rgba(16,42,86,.08);
  --sh-hover:0 14px 34px rgba(16,42,86,.14);
  --sp-1:4px; --sp-2:8px; --sp-3:12px; --sp-4:16px;
  --sp-5:24px; --sp-6:32px; --sp-7:48px; --sp-8:72px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none}
a:hover{color:var(--brand-dark);text-decoration:underline;text-underline-offset:3px}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;line-height:1.3}
h1{font-size:clamp(28px,3.6vw,38px);line-height:1.24}
h2{font-size:clamp(23px,2.8vw,30px)}
h3{font-size:20px;font-weight:600;line-height:1.4}
p{margin:0}
ul{margin:0}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 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(8px);
  -webkit-backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 4px 16px rgba(16,42,86,.08)}
.header-inner{display:flex;align-items:center;gap:28px;min-height:72px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;flex-shrink:0}
.brand:hover{text-decoration:none}
.brand-mark{
  width:28px;height:28px;border-radius:9px;background:var(--brand);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;font-size:13px;flex-shrink:0;
  box-shadow:0 4px 12px rgba(47,107,255,.3);
}
.brand-text{font-size:17px;font-weight:700;color:var(--ink);letter-spacing:.2px}
.brand-text em{font-style:normal;font-size:13px;font-weight:500;color:var(--muted);margin-left:8px}
.nav-menu{display:flex;align-items:center;gap:28px;margin-left:auto}
.nav-menu a{
  position:relative;font-size:15px;color:var(--text);padding:6px 0;white-space:nowrap;
}
.nav-menu a:hover{color:var(--brand);text-decoration:none}
.nav-menu a.active{color:var(--brand);font-weight:600}
.nav-menu a.active::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;background:var(--brand);
}
.header-cta{display:flex;align-items:center;gap:10px;flex-shrink:0}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:#fff;color:var(--ink);font-size:17px;align-items:center;justify-content:center;
  margin-left:auto;cursor:pointer;
}
.nav-toggle:hover{border-color:var(--brand);color:var(--brand)}

/* ---------- 按钮 ---------- */
.btn-pill{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:12px 24px;border-radius:999px;font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;transition:all .22s ease;white-space:nowrap;
}
.btn-pill:hover{text-decoration:none;transform:translateY(-2px)}
.btn-pill:active{transform:translateY(1px)}
.btn-main{background:var(--brand);color:#fff;box-shadow:0 8px 20px rgba(47,107,255,.26)}
.btn-main:hover{background:var(--brand-dark);color:#fff;box-shadow:0 12px 26px rgba(27,78,216,.3)}
.btn-line{background:#fff;border-color:var(--brand);color:var(--brand)}
.btn-line:hover{background:var(--soft-blue);color:var(--brand-dark);border-color:var(--brand-dark)}
.btn-sm{padding:9px 18px;min-height:40px;font-size:14px}

/* ---------- 抽屉 ---------- */
.drawer{--bs-offcanvas-width:308px;border:0}
.drawer .offcanvas-header{
  border-bottom:1px solid var(--line);padding:20px 24px;
}
.drawer .offcanvas-header .brand-text{font-size:16px}
.drawer .offcanvas-body{display:flex;flex-direction:column;padding:20px 24px 24px}
.drawer-nav{display:grid;gap:4px}
.drawer-nav a{
  display:block;padding:13px 14px;border-radius:14px;font-size:15px;color:var(--text);
}
.drawer-nav a:hover{background:var(--soft-blue);color:var(--brand);text-decoration:none}
.drawer-nav a.active{background:var(--soft-blue);color:var(--brand);font-weight:600}
.drawer-cta{margin-top:auto;display:grid;gap:10px;padding-top:24px}
.drawer-cta .btn-pill{width:100%}

/* ---------- 面包屑 ---------- */
.crumb-bar{padding:16px 0 0;background:transparent}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);flex-wrap:wrap}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--brand)}
.crumb .sep{color:var(--disabled)}
.crumb .cur{color:var(--text)}

/* ---------- 分类 Hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  padding:34px 0 40px;
  background:var(--bg);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-2.webp);
  background-size:cover;background-position:center;
  opacity:.07;pointer-events:none;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(47,107,255,.12) 1px,transparent 1px);
  background-size:20px 20px;opacity:.45;pointer-events:none;
}
.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.55fr .8fr;gap:44px;align-items:center}
.hero-tag{
  display:inline-flex;align-items:center;gap:7px;
  background:#fff;color:var(--brand);border:1px solid rgba(47,107,255,.22);
  font-size:12px;font-weight:600;padding:5px 12px;border-radius:999px;margin-bottom:14px;
}
.hero-copy h1{margin-bottom:12px}
.hero-sub{font-size:16px;color:var(--muted);margin-bottom:22px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.hero-media{
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-card);
  border:1px solid rgba(47,107,255,.10);background:#EDF2FC;
}
.hero-media img{width:100%;height:200px;object-fit:cover}

/* ---------- 板块通用 ---------- */
.section{padding:64px 0}
.section-white{background:#fff}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:34px}
.section-head .lead{margin-top:10px;font-size:15px;color:var(--muted);max-width:640px}
.link-more{font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px;white-space:nowrap}

/* ---------- 时间轴步骤 ---------- */
.timeline{display:grid;grid-template-columns:repeat(5,1fr);gap:18px;position:relative}
.timeline::before{
  content:"";position:absolute;top:44px;left:6%;right:6%;height:1px;
  background:repeating-linear-gradient(90deg,rgba(47,107,255,.35) 0 8px,transparent 8px 16px);
}
.tl-item{
  position:relative;background:#fff;border-radius:var(--r-card);padding:24px 20px;
  box-shadow:var(--sh-card);border:1px solid rgba(47,107,255,.10);
  transition:transform .24s ease,box-shadow .24s ease;
}
.tl-item:hover{transform:translateY(-4px);box-shadow:var(--sh-hover)}
.tl-num{
  display:block;font-size:26px;font-weight:700;color:var(--brand);line-height:1;
  margin-bottom:14px;font-variant-numeric:tabular-nums;
}
.tl-item h3{font-size:17px;margin-bottom:8px}
.tl-item p{font-size:14px;color:var(--text);line-height:1.75}
.tl-note{
  display:inline-flex;align-items:center;gap:6px;margin-top:12px;
  font-size:12.5px;color:var(--muted);background:var(--soft-blue);
  padding:5px 10px;border-radius:999px;
}

/* ---------- 错位图文 ---------- */
.feature-row{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center}
.feature-row + .feature-row{margin-top:60px}
.feature-media{
  border-radius:var(--r-lg);overflow:hidden;background:#EDF2FC;
  box-shadow:var(--sh-card);border:1px solid rgba(47,107,255,.10);
}
.feature-media img{width:100%;height:290px;object-fit:cover}
.feature-row.reverse .feature-media{order:2}
.soft-badge{
  display:inline-block;font-size:12px;font-weight:600;color:var(--brand);
  background:var(--soft-blue);padding:5px 12px;border-radius:999px;margin-bottom:14px;
}
.feature-body h2{margin-bottom:14px}
.feature-body > p{font-size:15.5px;margin-bottom:18px}
.dot-list{list-style:none;padding:0;display:grid;gap:12px}
.dot-list li{display:flex;gap:10px;font-size:15px;line-height:1.7}
.dot-list li i{color:var(--brand);font-size:14px;margin-top:7px;flex-shrink:0}

/* ---------- 核对清单 ---------- */
.check-panel{
  background:#fff;border-radius:var(--r-lg);padding:44px 40px;box-shadow:var(--sh-card);
  border:1px solid rgba(47,107,255,.10);
  display:grid;grid-template-columns:.85fr 1.3fr;gap:48px;align-items:start;
}
.check-intro h2{margin-bottom:14px}
.check-intro p{font-size:15px;color:var(--muted);margin-bottom:18px}
.count-chip{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;
  color:var(--brand-dark);background:var(--soft-blue);padding:8px 14px;border-radius:999px;
}
.check-grid{list-style:none;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:18px 24px}
.check-grid li{display:flex;gap:12px;align-items:flex-start}
.check-grid li i{
  color:var(--success);font-size:14px;width:26px;height:26px;border-radius:50%;
  background:rgba(18,184,134,.12);display:inline-flex;align-items:center;justify-content:center;
  flex-shrink:0;margin-top:4px;
}
.check-grid li strong{display:block;font-size:15.5px;color:var(--ink);font-weight:600;margin-bottom:4px}
.check-grid li span{font-size:14px;color:var(--muted);line-height:1.7}

/* ---------- FAQ ---------- */
.faq-list .accordion-item{
  border:0;border-radius:16px;background:#fff;box-shadow:var(--sh-card);
  margin-bottom:12px;overflow:hidden;
}
.faq-list .accordion-button{
  position:relative;background:#fff;color:var(--ink);font-size:16.5px;font-weight:600;
  padding:20px 24px;border-radius:16px;box-shadow:none;
}
.faq-list .accordion-button:not(.collapsed){color:var(--brand);background:#fff}
.faq-list .accordion-button:not(.collapsed)::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:3px;background:var(--brand);
}
.faq-list .accordion-button:focus{box-shadow:none;border-color:transparent}
.faq-list .accordion-button::after{
  content:"+";background-image:none;transform:none;
  width:28px;height:28px;border-radius:50%;background:var(--soft-blue);color:var(--brand);
  font-size:18px;font-weight:600;display:inline-flex;align-items:center;justify-content:center;
  flex-shrink:0;margin-left:16px;transition:background .22s ease,color .22s ease,transform .22s ease;
}
.faq-list .accordion-button:not(.collapsed)::after{
  content:"–";background:var(--brand);color:#fff;transform:rotate(180deg);
}
.faq-list .accordion-body{
  padding:0 24px 22px;font-size:15px;color:var(--text);line-height:1.85;
}
.faq-list .accordion-body ul{list-style:none;padding:0;display:grid;gap:8px;margin-top:10px}
.faq-list .accordion-body ul li{display:flex;gap:9px;font-size:14.5px;color:var(--muted)}
.faq-list .accordion-body ul li i{color:var(--brand);font-size:12px;margin-top:7px}

/* ---------- CTA 条 ---------- */
.cta-band{background:var(--dark);padding:56px 0}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px}
.cta-inner h2{color:#fff;font-size:clamp(21px,2.4vw,27px);margin-bottom:10px}
.cta-inner p{color:#B8C6E0;font-size:15px}
.cta-inner .btn-main{box-shadow:0 10px 26px rgba(47,107,255,.4)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:#C7D3E8;padding:64px 0 0;border-top:1px solid rgba(255,255,255,.12)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:16px;margin-bottom:14px}
.footer-col h3{color:#fff;font-size:16px;font-weight:600;margin-bottom:16px}
.footer-col ul{list-style:none;padding:0;display:grid;gap:10px}
.footer-col a{color:#C7D3E8;font-size:14px}
.footer-col a:hover{color:#fff;text-decoration:none}
.footer-col p{font-size:14px;line-height:1.85;color:#9FB0CC;max-width:340px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:20px 0;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#8DA0C0;
}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .container{padding:0 20px}
  .feature-row{gap:36px}
  .check-panel{gap:32px;padding:36px 32px}
}
@media (max-width:991.98px){
  .nav-menu,.header-cta{display:none}
  .nav-toggle{display:inline-flex}
  .hero-grid{grid-template-columns:1fr;gap:26px}
  .hero-media img{height:220px}
  .timeline{grid-template-columns:1fr 1fr}
  .timeline::before{display:none}
  .feature-row{grid-template-columns:1fr;gap:22px}
  .feature-row.reverse .feature-media{order:0}
  .feature-media img{height:240px}
  .check-panel{grid-template-columns:1fr;padding:32px 26px}
  .check-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-inner{flex-direction:column;align-items:flex-start}
}
@media (max-width:767.98px){
  .section{padding:48px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:26px}
  .timeline{grid-template-columns:1fr}
  .check-grid{grid-template-columns:1fr}
  .hero-actions .btn-pill{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:8px}
  .cta-inner .btn-pill{width:100%}
}
@media (max-width:575.98px){
  body{font-size:15px}
  h1{font-size:27px}
  h2{font-size:22px}
  .container{padding:0 16px}
  .brand-text{font-size:15.5px}
  .brand-text em{display:none}
  .page-hero{padding:26px 0 32px}
  .feature-media img{height:196px}
  .check-panel{padding:26px 20px}
  .faq-list .accordion-button{font-size:15.5px;padding:17px 18px}
  .faq-list .accordion-body{padding:0 18px 18px}
}

/* roulang page: category2 */
:root{
  --brand:#2F6BFF;
  --brand-dark:#1B4ED8;
  --brand-soft:#EAF1FF;
  --brand-tint:#F7FAFF;
  --accent:#FF7A45;
  --ok:#12B886;
  --danger:#E5484D;
  --bg:#F5F8FE;
  --surface:#FFFFFF;
  --footer-bg:#0F1E3D;
  --text:#0E1A2B;
  --text-body:#33415C;
  --text-muted:#6B7A99;
  --text-disabled:#A9B4C7;
  --line:#E4EBF7;
  --radius-card:18px;
  --radius-lg:24px;
  --radius-input:14px;
  --shadow-card:0 6px 24px rgba(16,42,86,.08);
  --shadow-hover:0 14px 34px rgba(16,42,86,.14);
  --shadow-nav:0 4px 16px rgba(16,42,86,.08);
  --sp-1:4px;--sp-2:8px;--sp-3:12px;--sp-4:16px;--sp-5:24px;--sp-6:32px;--sp-7:48px;--sp-8:72px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;line-height:1.85;
  color:var(--text-body);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-dark);text-decoration:underline;text-underline-offset:3px;}
ul,ol{list-style:none;margin:0;padding:0;}
h1,h2,h3,h4{margin:0;color:var(--text);font-weight:700;letter-spacing:.2px;}
p{margin:0 0 16px;}
p:last-child{margin-bottom:0;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.92);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-stuck{box-shadow:var(--shadow-nav);}
.header-inner{display:flex;align-items:center;gap:32px;height:76px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--text);font-size:17px;font-weight:700;}
.brand:hover{color:var(--text);text-decoration:none;}
.brand-mark{
  width:28px;height:28px;border-radius:9px;background:var(--brand);color:#fff;
  display:grid;place-items:center;font-size:13px;flex:0 0 28px;
  box-shadow:0 6px 14px rgba(47,107,255,.26);
}
.nav-menu{display:flex;align-items:center;gap:28px;margin-left:auto;}
.nav-menu a{position:relative;font-size:15px;color:var(--text-body);padding:6px 0;white-space:nowrap;}
.nav-menu a:hover{color:var(--brand);text-decoration:none;}
.nav-menu a.active{color:var(--brand);font-weight:600;}
.nav-menu a.active::after{
  content:"";position:absolute;left:0;right:0;bottom:-4px;height:3px;border-radius:3px;background:var(--brand);
}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.nav-toggle{
  width:44px;height:44px;border-radius:14px;border:1px solid var(--line);background:#fff;color:var(--text);
  display:none;place-items:center;font-size:17px;cursor:pointer;
}
.nav-toggle:hover{border-color:var(--brand);color:var(--brand);}

/* ---------- buttons ---------- */
.btn-brand,.btn-ghost,.btn-light-pill{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:12px 24px;border-radius:999px;
  font-size:15px;font-weight:600;line-height:1.2;cursor:pointer;
  transition:transform .22s ease,background .22s ease,box-shadow .22s ease,color .22s ease;
  border:1px solid transparent;
}
.btn-brand{background:var(--brand);color:#fff;box-shadow:0 8px 20px rgba(47,107,255,.22);}
.btn-brand:hover{background:#4C80FF;color:#fff;text-decoration:none;transform:translateY(-2px);box-shadow:0 14px 26px rgba(47,107,255,.3);}
.btn-brand:active{background:var(--brand-dark);transform:translateY(1px);}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--brand);}
.btn-ghost:hover{background:var(--brand-tint);color:var(--brand-dark);text-decoration:none;transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-light-pill{background:#fff;color:var(--brand-dark);}
.btn-light-pill:hover{background:#EAF1FF;color:var(--brand-dark);text-decoration:none;transform:translateY(-2px);}
.btn-sm-pill{min-height:38px;padding:9px 18px;font-size:14px;}
.btn-block{width:100%;}

/* ---------- breadcrumb ---------- */
.breadcrumb-bar{background:#fff;border-bottom:1px solid var(--line);padding:14px 0;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-muted);}
.crumb li{display:flex;align-items:center;gap:8px;}
.crumb li+li::before{content:"›";color:var(--text-disabled);}
.crumb a{color:var(--text-muted);}
.crumb a:hover{color:var(--brand);}
.crumb li[aria-current="page"]{color:var(--text-body);font-weight:600;}

/* ---------- hero ---------- */
.cat-hero{background:#fff;padding:56px 0 56px;border-bottom:1px solid var(--line);position:relative;overflow:hidden;}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(47,107,255,.10) 1px,transparent 1px);
  background-size:22px 22px;opacity:.5;pointer-events:none;
}
.hero-grid{position:relative;display:grid;grid-template-columns:minmax(0,1.12fr) minmax(0,.88fr);gap:56px;align-items:center;}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;background:var(--brand-soft);color:var(--brand-dark);
  font-size:13px;font-weight:600;padding:6px 14px;border-radius:999px;margin-bottom:18px;
}
.cat-hero h1{font-size:clamp(30px,4.4vw,46px);line-height:1.22;font-weight:700;margin-bottom:18px;}
.hero-lead{font-size:17px;color:var(--text-body);max-width:560px;margin-bottom:28px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px;}
.hero-points{display:flex;flex-wrap:wrap;gap:22px;font-size:14px;color:var(--text-muted);}
.hero-points span{display:inline-flex;align-items:center;gap:8px;}
.hero-points i{color:var(--brand);font-size:13px;}
.hero-media{border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-card);border:1px solid rgba(47,107,255,.10);background:#EDF2FC;}
.hero-media img{width:100%;aspect-ratio:16/11;object-fit:cover;}

/* ---------- sections ---------- */
.section{padding:72px 0;}
.section-alt{background:#fff;}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head h2{font-size:clamp(24px,3vw,32px);line-height:1.3;margin-bottom:12px;}
.section-head p{color:var(--text-muted);font-size:15.5px;margin:0;}

/* ---------- layout with sticky toc ---------- */
.doc-layout{display:grid;grid-template-columns:260px minmax(0,1fr);gap:48px;align-items:start;}
.toc{
  position:sticky;top:104px;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-card);padding:24px;box-shadow:var(--shadow-card);
}
.toc h2{font-size:15px;letter-spacing:.4px;margin-bottom:14px;color:var(--text);}
.toc ul li+li{margin-top:4px;}
.toc a{
  display:flex;align-items:center;gap:10px;font-size:14px;color:var(--text-body);
  padding:9px 12px;border-radius:12px;transition:background .2s ease,color .2s ease;
}
.toc a::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--text-disabled);flex:0 0 6px;transition:background .2s ease;}
.toc a:hover,.toc a.active{background:var(--brand-tint);color:var(--brand-dark);text-decoration:none;}
.toc a:hover::before,.toc a.active::before{background:var(--brand);}
.toc-note{margin-top:18px;padding-top:18px;border-top:1px dashed var(--line);font-size:13px;color:var(--text-muted);}

/* ---------- step accordion ---------- */
.step-accordion .accordion-item{
  border:none;background:#fff;border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);margin-bottom:16px;overflow:hidden;
  border:1px solid rgba(47,107,255,.10);
  transition:box-shadow .25s ease,transform .25s ease;
}
.step-accordion .accordion-item:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);}
.step-accordion .accordion-header{margin:0;}
.step-accordion .accordion-button{
  display:flex;align-items:center;gap:16px;width:100%;
  background:#fff;border:none;border-radius:var(--radius-card);
  padding:20px 24px;font-size:17px;font-weight:600;color:var(--text);
  box-shadow:none;
}
.step-accordion .accordion-button:focus{box-shadow:inset 0 0 0 3px rgba(47,107,255,.16);}
.step-accordion .accordion-button:not(.collapsed){background:var(--brand-tint);color:var(--brand-dark);}
.step-accordion .accordion-button::after{
  content:"";flex:0 0 22px;width:22px;height:22px;margin-left:auto;
  background-repeat:no-repeat;background-position:center;background-size:22px 22px;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%232F6BFF'%3E%3Cpath d='M8 4a.5.5 0 0 1 .5.5v3h3a.5.5 0 0 1 0 1h-3v3a.5.5 0 0 1-1 0v-3h-3a.5.5 0 0 1 0-1h3v-3A.5.5 0 0 1 8 4z'/%3E%3C/svg%3E");
  transition:transform .25s ease;
}
.step-accordion .accordion-button:not(.collapsed)::after{
  transform:rotate(180deg);
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%231B4ED8'%3E%3Cpath d='M4 8a.5.5 0 0 1 .5-.5h7a.5.5 0 0 1 0 1h-7A.5.5 0 0 1 4 8z'/%3E%3C/svg%3E");
}
.step-num{
  flex:0 0 38px;width:38px;height:38px;border-radius:50%;
  background:var(--brand-soft);color:var(--brand-dark);
  display:grid;place-items:center;font-size:15px;font-weight:700;
  font-variant-numeric:tabular-nums;
}
.accordion-button:not(.collapsed) .step-num{background:var(--brand);color:#fff;}
.step-accordion .accordion-body{padding:2px 24px 26px 78px;font-size:15.5px;color:var(--text-body);}
.step-accordion .accordion-body p{margin-bottom:14px;}
.step-tip{
  display:flex;gap:10px;align-items:flex-start;
  background:#F0F5FF;border-left:3px solid var(--brand);border-radius:12px;
  padding:12px 16px;font-size:14px;color:var(--text-body);margin:0;
}
.step-tip i{color:var(--brand);margin-top:4px;font-size:13px;}

/* ---------- table card ---------- */
.table-card{
  background:#fff;border-radius:var(--radius-card);box-shadow:var(--shadow-card);
  border:1px solid rgba(47,107,255,.10);padding:8px;overflow-x:auto;margin-top:32px;
}
.spec-table{width:100%;border-collapse:separate;border-spacing:0;min-width:640px;}
.spec-table th{
  background:#F0F5FF;color:var(--text);font-size:14px;font-weight:600;text-align:left;
  padding:14px 20px;white-space:nowrap;
}
.spec-table th:first-child{border-radius:14px 0 0 14px;}
.spec-table th:last-child{border-radius:0 14px 14px 0;}
.spec-table td{
  padding:16px 20px;font-size:14.5px;color:var(--text-body);border-bottom:1px solid var(--line);vertical-align:top;
}
.spec-table tbody tr:last-child td{border-bottom:none;}
.spec-table td:first-child{font-weight:600;color:var(--text);white-space:nowrap;}

/* ---------- checklist ---------- */
.check-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px 28px;}
.check-item{
  display:flex;gap:12px;align-items:flex-start;background:#fff;border-radius:14px;
  padding:16px 20px;border:1px solid var(--line);font-size:14.5px;transition:box-shadow .22s ease,transform .22s ease;
}
.check-item:hover{box-shadow:var(--shadow-card);transform:translateY(-2px);}
.check-item i{color:var(--ok);font-size:15px;margin-top:4px;}

/* ---------- FAQ ---------- */
.faq-accordion .accordion-item{
  border:none;background:#fff;border-radius:16px;margin-bottom:12px;overflow:hidden;
  box-shadow:var(--shadow-card);
}
.faq-accordion .accordion-button{
  background:#fff;border:none;padding:20px 24px;font-size:16.5px;font-weight:600;color:var(--text);
  border-radius:16px;box-shadow:none;position:relative;
}
.faq-accordion .accordion-button:not(.collapsed){color:var(--brand-dark);background:#fff;box-shadow:none;}
.faq-accordion .accordion-button:not(.collapsed)::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:3px;background:var(--brand);
}
.faq-accordion .accordion-button::after{
  content:"";flex:0 0 20px;width:20px;height:20px;margin-left:auto;
  background-repeat:no-repeat;background-position:center;background-size:20px 20px;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%232F6BFF'%3E%3Cpath d='M8 4a.5.5 0 0 1 .5.5v3h3a.5.5 0 0 1 0 1h-3v3a.5.5 0 0 1-1 0v-3h-3a.5.5 0 0 1 0-1h3v-3A.5.5 0 0 1 8 4z'/%3E%3C/svg%3E");
  transition:transform .25s ease;
}
.faq-accordion .accordion-button:not(.collapsed)::after{
  transform:rotate(180deg);
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%231B4ED8'%3E%3Cpath d='M4 8a.5.5 0 0 1 .5-.5h7a.5.5 0 0 1 0 1h-7A.5.5 0 0 1 4 8z'/%3E%3C/svg%3E");
}
.faq-accordion .accordion-body{padding:0 24px 22px;font-size:15px;color:var(--text-body);}

/* ---------- CTA band ---------- */
.cta-band{background:var(--footer-bg);padding:56px 0;}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.cta-inner h2{color:#fff;font-size:clamp(22px,2.6vw,28px);margin-bottom:8px;}
.cta-inner p{color:#C7D3E8;font-size:15px;margin:0;}

/* ---------- footer ---------- */
.site-footer{background:var(--footer-bg);color:#C7D3E8;padding:64px 0 28px;border-top:1px solid rgba(255,255,255,.12);}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:16.5px;font-weight:700;margin-bottom:16px;}
.footer-col p{font-size:14px;color:#C7D3E8;line-height:1.85;margin:0;}
.footer-col h3{color:#fff;font-size:15px;margin-bottom:16px;font-weight:600;}
.footer-col ul li+li{margin-top:10px;}
.footer-col ul a{color:#C7D3E8;font-size:14px;}
.footer-col ul a:hover{color:#fff;text-decoration:underline;}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#93A3C0;
}

/* ---------- offcanvas drawer ---------- */
.drawer{width:320px;background:#fff;}
.drawer .offcanvas-header{border-bottom:1px solid var(--line);padding:20px 22px;}
.drawer-title{font-size:16px;font-weight:700;color:var(--text);}
.drawer-body{display:flex;flex-direction:column;padding:20px 22px;}
.drawer-nav a{
  display:block;font-size:15.5px;color:var(--text-body);padding:14px 4px;border-bottom:1px solid var(--line);
}
.drawer-nav a:hover{color:var(--brand);text-decoration:none;}
.drawer-nav a.active{color:var(--brand);font-weight:600;}
.drawer-cta{margin-top:auto;padding-top:24px;}

/* ---------- anchors ---------- */
.anchor{scroll-margin-top:110px;}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .hero-grid{gap:40px;}
  .doc-layout{grid-template-columns:230px minmax(0,1fr);gap:32px;}
}
@media (max-width:991px){
  .nav-menu{display:none;}
  .nav-toggle{display:grid;}
  .header-actions .btn-ghost{display:none;}
  .header-actions .btn-brand{display:none;}
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero-media{max-width:560px;}
  .doc-layout{grid-template-columns:1fr;gap:24px;}
  .toc{position:static;}
  .toc ul{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:4px 8px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .section{padding:48px 0;}
  .cat-hero{padding:40px 0;}
  .hero-lead{font-size:16px;}
  .hero-cta .btn-brand,.hero-cta .btn-ghost{width:100%;}
  .step-accordion .accordion-body{padding:2px 20px 22px 20px;}
  .step-accordion .accordion-button{padding:18px 20px;gap:12px;font-size:16px;}
  .check-grid{grid-template-columns:1fr;}
  .toc ul{grid-template-columns:1fr;}
}
@media (max-width:575px){
  body{font-size:15.5px;}
  .brand{font-size:15.5px;}
  .header-inner{height:68px;gap:12px;}
  .cat-hero h1{font-size:28px;}
  .hero-points{gap:14px;font-size:13.5px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}

/* roulang page: category3 */
:root{
  --primary:#2F6BFF;
  --primary-dark:#1B4ED8;
  --accent:#FF7A45;
  --success:#12B886;
  --danger:#E5484D;
  --bg:#F5F8FE;
  --surface:#FFFFFF;
  --dark:#0F1E3D;
  --text:#0E1A2B;
  --text-body:#33415C;
  --text-muted:#6B7A99;
  --text-disabled:#A9B4C7;
  --border:#E4EBF7;
  --ring:rgba(47,107,255,.12);
  --sp-1:4px;
  --sp-2:8px;
  --sp-3:12px;
  --sp-4:16px;
  --sp-5:24px;
  --sp-6:32px;
  --sp-7:48px;
  --sp-8:72px;
  --r-card:18px;
  --r-lg:24px;
  --r-btn:999px;
  --r-input:14px;
  --shadow-card:0 6px 24px rgba(16,42,86,.08);
  --shadow-hover:0 14px 34px rgba(16,42,86,.14);
  --shadow-nav:0 4px 16px rgba(16,42,86,.08);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text-body);
  background:var(--bg);
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease,text-decoration-color .2s ease;}
a:hover{color:var(--primary-dark);text-decoration:underline;text-underline-offset:3px;}
h1,h2,h3,h4{color:var(--text);margin:0 0 var(--sp-4);font-weight:700;}
h1{font-size:clamp(30px,4.4vw,46px);line-height:1.22;}
h2{font-size:clamp(24px,3vw,32px);line-height:1.3;}
h3{font-size:20px;line-height:1.4;font-weight:600;}
p{margin:0 0 var(--sp-4);}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding-left:var(--sp-5);padding-right:var(--sp-5);}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:12px 24px;font-size:15px;font-weight:600;line-height:1.2;border-radius:var(--r-btn);border:1px solid transparent;cursor:pointer;transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease;text-decoration:none;}
.btn:hover{text-decoration:none;transform:translateY(-2px);}
.btn:active{transform:translateY(1px);}
.btn-sm{min-height:40px;padding:9px 18px;font-size:14px;}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 6px 18px rgba(47,107,255,.28);}
.btn-primary:hover{background:#3f78ff;color:#fff;box-shadow:0 10px 24px rgba(47,107,255,.32);}
.btn-outline-primary{background:#fff;color:var(--primary);border-color:rgba(47,107,255,.45);}
.btn-outline-primary:hover{background:#F0F5FF;color:var(--primary-dark);border-color:var(--primary);}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 6px 18px rgba(255,122,69,.28);}
.btn-accent:hover{background:#ff8b5c;color:#fff;}
.btn-ghost{background:transparent;color:var(--primary);border-color:#CFDDFB;}
.btn-ghost:hover{background:#EAF1FF;color:var(--primary-dark);}
.btn-light{background:#fff;color:var(--primary-dark);box-shadow:0 8px 22px rgba(4,14,38,.24);}
.btn-light:hover{background:#F2F6FF;color:var(--primary-dark);}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:1030;background:rgba(255,255,255,.92);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border-bottom:1px solid var(--border);transition:box-shadow .25s ease;}
.site-header.is-scrolled{box-shadow:var(--shadow-nav);}
.header-inner{display:flex;align-items:center;gap:var(--sp-5);min-height:72px;}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--text);font-weight:700;font-size:17px;letter-spacing:.2px;white-space:nowrap;}
.brand:hover{color:var(--primary);text-decoration:none;}
.brand-mark{width:28px;height:28px;flex:0 0 28px;border-radius:10px;background:var(--primary);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-size:13px;box-shadow:0 4px 12px rgba(47,107,255,.3);}
.nav-menu{display:flex;align-items:center;gap:28px;margin-left:auto;}
.nav-menu a{position:relative;font-size:15px;color:var(--text-body);padding:6px 0;}
.nav-menu a:hover{color:var(--primary);text-decoration:none;}
.nav-menu a.active{color:var(--primary);font-weight:600;}
.nav-menu a.active::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:3px;border-radius:3px;background:var(--primary);}
.nav-actions{display:flex;align-items:center;gap:10px;}
.nav-toggle{display:none;width:44px;height:44px;border-radius:14px;border:1px solid var(--border);background:#fff;color:var(--text);font-size:18px;}
.nav-toggle:hover{border-color:var(--primary);color:var(--primary);}
.offcanvas{border:0;width:320px;}
.offcanvas-header{border-bottom:1px solid var(--border);}
.offcanvas-title{font-size:16px;font-weight:700;color:var(--text);}
.offcanvas-body{display:flex;flex-direction:column;gap:6px;padding:var(--sp-5);}
.offcanvas-body a.off-link{display:block;padding:12px 14px;border-radius:14px;color:var(--text-body);font-size:15px;}
.offcanvas-body a.off-link:hover{background:#F0F5FF;color:var(--primary);text-decoration:none;}
.offcanvas-body a.off-link.active{background:#EAF1FF;color:var(--primary);font-weight:600;}
.offcanvas-cta{margin-top:auto;display:grid;gap:10px;padding-top:var(--sp-5);}

/* ---------- 面包屑 ---------- */
.crumb-bar{padding:18px 0 0;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-muted);}
.crumb a{color:var(--text-muted);}
.crumb a:hover{color:var(--primary);}
.crumb .sep{color:var(--text-disabled);}
.crumb .current{color:var(--text-body);font-weight:600;}

/* ---------- Hero ---------- */
.page-hero{background:var(--bg);position:relative;overflow:hidden;padding:var(--sp-6) 0 var(--sp-7);}
.page-hero::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(47,107,255,.10) 1px,transparent 1px);background-size:22px 22px;opacity:.5;pointer-events:none;}
.hero-inner{position:relative;display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:var(--sp-7);align-items:center;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--primary);background:#EAF1FF;border-radius:999px;padding:6px 14px;margin-bottom:var(--sp-4);}
.hero-copy p.lead{font-size:17px;color:var(--text-body);max-width:560px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:var(--sp-5) 0 var(--sp-5);}
.hero-facts{display:flex;flex-wrap:wrap;gap:var(--sp-5);font-size:14px;color:var(--text-muted);}
.hero-facts span{display:inline-flex;align-items:center;gap:7px;}
.hero-facts i{color:var(--primary);font-size:13px;}
.hero-media{position:relative;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-card);border:1px solid rgba(47,107,255,.10);background:#EDF2FC;}
.hero-media img{width:100%;height:100%;max-height:340px;object-fit:cover;}
.hero-media .media-note{position:absolute;left:16px;bottom:16px;right:16px;background:rgba(15,30,61,.72);color:#fff;font-size:13px;line-height:1.6;border-radius:14px;padding:10px 14px;backdrop-filter:blur(4px);}

/* ---------- 通用板块 ---------- */
.section{padding:var(--sp-8) 0;}
.section.alt{background:var(--surface);}
.section-head{max-width:720px;margin-bottom:var(--sp-6);}
.section-head .kicker{display:inline-block;font-size:13px;font-weight:600;color:var(--primary);letter-spacing:1px;margin-bottom:10px;}
.section-head p{color:var(--text-muted);font-size:15.5px;margin-bottom:0;}

/* ---------- 筛选 chips ---------- */
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:var(--sp-6);}
.chip{display:inline-flex;align-items:center;gap:8px;padding:9px 18px;font-size:14px;color:var(--primary);background:#fff;border:1px solid rgba(47,107,255,.35);border-radius:999px;cursor:pointer;transition:all .18s ease;}
.chip i{font-size:12px;}
.chip:hover{background:#F0F5FF;transform:translateY(-2px);}
.chip.is-active{background:var(--primary);color:#fff;border-color:var(--primary);box-shadow:0 8px 18px rgba(47,107,255,.26);}

/* ---------- 问题折叠卡 ---------- */
.issue-accordion .accordion-item{border:0;border-radius:16px;background:#fff;margin-bottom:12px;box-shadow:var(--shadow-card);overflow:hidden;transition:box-shadow .2s ease,transform .2s ease;}
.issue-accordion .accordion-item:hover{box-shadow:var(--shadow-hover);}
.issue-accordion .accordion-button{display:flex;align-items:center;gap:14px;width:100%;padding:18px 54px 18px 20px;font-size:16px;font-weight:600;color:var(--text);background:#fff;box-shadow:none;border:0;border-radius:16px;}
.issue-accordion .accordion-button:not(.collapsed){color:var(--primary-dark);background:#fff;box-shadow:inset 3px 0 0 var(--primary);}
.issue-accordion .accordion-button:focus{box-shadow:inset 3px 0 0 var(--primary),0 0 0 3px var(--ring);}
.issue-accordion .accordion-button::after{content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;font-size:13px;color:var(--primary);background-image:none;width:auto;height:auto;line-height:1;position:absolute;right:22px;transition:transform .2s ease;}
.issue-accordion .accordion-button:not(.collapsed)::after{content:"\f068";}
.issue-accordion .issue-icon{flex:0 0 40px;width:40px;height:40px;border-radius:14px;background:#EAF1FF;color:var(--primary);display:inline-flex;align-items:center;justify-content:center;font-size:16px;}
.issue-accordion .accordion-body{padding:0 24px 22px 74px;font-size:15.5px;color:var(--text-body);}
.issue-accordion .accordion-body ul{margin-top:10px;display:grid;gap:8px;}
.issue-accordion .accordion-body li{position:relative;padding-left:20px;}
.issue-accordion .accordion-body li::before{content:"";position:absolute;left:0;top:11px;width:7px;height:7px;border-radius:50%;background:var(--primary);opacity:.7;}
.issue-accordion .tip{display:inline-flex;align-items:flex-start;gap:8px;margin-top:14px;font-size:14px;color:var(--text-muted);background:#F5F8FE;border-radius:12px;padding:10px 14px;}
.issue-accordion .tip i{color:var(--accent);margin-top:4px;}

/* ---------- 自查清单网格 ---------- */
.check-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--sp-5);}
.check-card{background:#fff;border-radius:var(--r-card);border:1px solid rgba(47,107,255,.10);box-shadow:var(--shadow-card);padding:var(--sp-5);display:flex;gap:16px;transition:transform .2s ease,box-shadow .2s ease;}
.check-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.check-card .num{flex:0 0 44px;width:44px;height:44px;border-radius:14px;background:#EAF1FF;color:var(--primary);font-weight:700;font-size:16px;display:inline-flex;align-items:center;justify-content:center;}
.check-card h3{font-size:17px;margin-bottom:8px;}
.check-card p{font-size:14.5px;color:var(--text-muted);margin-bottom:0;}

/* ---------- 表格卡 ---------- */
.table-card{background:#fff;border-radius:var(--r-card);border:1px solid var(--border);box-shadow:var(--shadow-card);overflow:hidden;}
.table-card .table-card-head{padding:var(--sp-5) var(--sp-5) var(--sp-4);border-bottom:1px solid var(--border);}
.table-card .table-card-head h3{margin-bottom:6px;}
.table-card .table-card-head p{margin-bottom:0;font-size:14.5px;color:var(--text-muted);}
.table-scroll{overflow-x:auto;}
table.priority{width:100%;border-collapse:collapse;min-width:640px;}
table.priority th{background:#EAF1FF;color:var(--text);font-size:14.5px;font-weight:600;text-align:left;padding:14px 20px;white-space:nowrap;}
table.priority td{padding:16px 20px;font-size:14.5px;color:var(--text-body);border-top:1px solid var(--border);vertical-align:top;}
table.priority tbody tr:hover{background:#F8FBFF;}
.level-tag{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;font-weight:600;border-radius:999px;padding:4px 12px;}
.level-tag.high{background:#FFEDE6;color:#D9541F;}
.level-tag.mid{background:#EAF1FF;color:var(--primary-dark);}
.level-tag.low{background:#E6F8F1;color:#0B8F6A;}

/* ---------- 图文区 ---------- */
.split{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:var(--sp-7);align-items:center;}
.split.reverse{grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);}
.split-media{border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-card);border:1px solid rgba(47,107,255,.10);background:#EDF2FC;}
.split-media img{width:100%;height:300px;object-fit:cover;}
.split-copy ul.point-list{display:grid;gap:14px;margin-top:var(--sp-4);}
.split-copy ul.point-list li{display:flex;gap:12px;font-size:15.5px;}
.split-copy ul.point-list i{color:var(--success);font-size:17px;margin-top:5px;}
.split-copy ul.point-list.warn i{color:var(--danger);}

/* ---------- CTA 条 ---------- */
.cta-band{background:var(--dark);color:#C7D3E8;padding:var(--sp-7) 0;}
.cta-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:var(--sp-5);}
.cta-inner h2{color:#fff;margin-bottom:8px;font-size:clamp(22px,2.6vw,28px);}
.cta-inner p{margin-bottom:0;font-size:15px;color:#C7D3E8;max-width:640px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:#C7D3E8;padding:var(--sp-7) 0 var(--sp-5);border-top:1px solid rgba(255,255,255,.12);}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:var(--sp-6);}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:17px;margin-bottom:var(--sp-4);}
.footer-brand .brand-mark{background:var(--primary);}
.footer-col p{font-size:14px;color:#C7D3E8;opacity:.86;margin-bottom:0;}
.footer-col h3{color:#fff;font-size:15px;margin-bottom:var(--sp-4);}
.footer-col ul{display:grid;gap:10px;}
.footer-col ul a{color:#C7D3E8;font-size:14px;}
.footer-col ul a:hover{color:#fff;text-decoration:underline;}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;margin-top:var(--sp-7);padding-top:var(--sp-5);border-top:1px solid rgba(255,255,255,.12);font-size:13px;color:#96A6C4;}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .header-inner{gap:var(--sp-4);}
  .nav-menu{gap:20px;}
  .hero-inner{gap:var(--sp-6);}
}
@media (max-width:991.98px){
  .nav-menu,.nav-actions{display:none;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;margin-left:auto;}
  .hero-inner{grid-template-columns:1fr;}
  .hero-media img{max-height:280px;}
  .split,.split.reverse{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .check-grid{grid-template-columns:1fr;}
}
@media (max-width:767.98px){
  .section{padding:var(--sp-7) 0;}
  .page-hero{padding:var(--sp-5) 0 var(--sp-6);}
  .container{padding-left:var(--sp-4);padding-right:var(--sp-4);}
  .issue-accordion .accordion-body{padding-left:24px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .hero-actions .btn{width:100%;}
}
@media (max-width:575.98px){
  body{font-size:15px;}
  h1{font-size:30px;}
  h2{font-size:24px;}
  .footer-grid{grid-template-columns:1fr;}
  .split-media img{height:220px;}
  .table-card .table-card-head{padding:var(--sp-4);}
}

/* roulang page: category4 */
:root{
  --primary:#2F6BFF;
  --primary-dark:#1B4ED8;
  --accent:#FF7A45;
  --success:#12B886;
  --danger:#E5484D;
  --bg:#F5F8FE;
  --surface:#FFFFFF;
  --ink:#0E1A2B;
  --text:#33415C;
  --muted:#6B7A99;
  --disabled:#A9B4C7;
  --border:#E4EBF7;
  --navy:#0F1E3D;
  --radius-card:18px;
  --radius-lg:24px;
  --radius-btn:999px;
  --shadow-card:0 6px 24px rgba(16,42,86,.08);
  --shadow-hover:0 14px 34px rgba(16,42,86,.14);
  --shadow-nav:0 4px 16px rgba(16,42,86,.08);
  --sp-1:4px; --sp-2:8px; --sp-3:12px; --sp-4:16px; --sp-5:24px; --sp-6:32px; --sp-7:48px; --sp-8:72px;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--primary-dark);text-decoration:underline;text-underline-offset:3px;}
button{font-family:inherit;}
ul{list-style:none;margin:0;padding:0;}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;letter-spacing:.2px;}
p{margin:0;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;box-shadow:0 0 0 2px #fff;}

.container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px;}

/* ============ header ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.92);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--border);
  transition:box-shadow .25s ease;
}
.site-header.is-stuck{box-shadow:var(--shadow-nav);}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:78px;}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);font-size:17px;font-weight:700;white-space:nowrap;}
.brand:hover{color:var(--ink);text-decoration:none;}
.brand-mark{
  width:30px;height:30px;flex:0 0 30px;border-radius:10px;background:var(--primary);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;font-size:14px;
}
.nav-menu{display:flex;align-items:center;gap:28px;}
.nav-menu a{position:relative;padding:6px 0;font-size:15px;color:var(--text);}
.nav-menu a:hover{color:var(--primary);text-decoration:none;}
.nav-menu a.active{color:var(--primary);font-weight:600;}
.nav-menu a.active::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:3px;border-radius:3px;background:var(--primary);
}
.header-actions{display:flex;align-items:center;gap:12px;}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:14px;
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  border:1px solid transparent;background:transparent;color:var(--ink);
  transition:transform .2s ease,background-color .2s ease,box-shadow .2s ease,border-color .2s ease,color .2s ease;
}
.btn:focus,.btn:focus-visible{box-shadow:0 0 0 3px rgba(47,107,255,.18);}
.btn-primary-pill{background:var(--primary);color:#fff;border-radius:var(--radius-btn);}
.btn-primary-pill:hover{background:#4a7dff;color:#fff;text-decoration:none;transform:translateY(-2px);box-shadow:0 10px 22px rgba(47,107,255,.28);}
.btn-primary-pill:active{background:var(--primary-dark);transform:translateY(1px);box-shadow:none;}
.btn-outline-pill{background:#fff;color:var(--primary);border:1px solid var(--primary);border-radius:var(--radius-btn);}
.btn-outline-pill:hover{background:#F0F5FF;color:var(--primary-dark);text-decoration:none;transform:translateY(-2px);}
.btn-outline-pill:active{transform:translateY(1px);}
.btn-accent{background:var(--accent);color:#fff;border-radius:var(--radius-btn);}
.btn-accent:hover{background:#ff8b5c;color:#fff;text-decoration:none;transform:translateY(-2px);box-shadow:0 10px 22px rgba(255,122,69,.28);}
.btn-white{background:#fff;color:var(--primary);border-radius:var(--radius-btn);}
.btn-white:hover{background:#F0F5FF;color:var(--primary-dark);text-decoration:none;transform:translateY(-2px);}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:14px;border:1px solid var(--border);
  background:#fff;color:var(--ink);font-size:16px;align-items:center;justify-content:center;
}
.nav-toggle:hover{border-color:var(--primary);color:var(--primary);}

/* ============ offcanvas ============ */
.offcanvas{--bs-offcanvas-width:330px;}
.offcanvas-header{border-bottom:1px solid var(--border);padding:18px 20px;}
.offcanvas-body{display:flex;flex-direction:column;padding:20px;}
.mobile-nav{display:flex;flex-direction:column;gap:6px;}
.mobile-nav a{padding:12px 14px;border-radius:12px;color:var(--text);font-size:15px;font-weight:500;}
.mobile-nav a:hover{background:#F0F5FF;color:var(--primary);text-decoration:none;}
.mobile-nav a.active{background:#F0F5FF;color:var(--primary);font-weight:600;}
.drawer-cta{margin-top:auto;padding-top:20px;display:grid;gap:10px;border-top:1px solid var(--border);}

/* ============ breadcrumb ============ */
.crumb-bar{background:#fff;border-bottom:1px solid var(--border);}
.crumb{display:flex;align-items:center;gap:8px;padding:14px 0;font-size:13px;color:var(--muted);}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--primary);}
.crumb .sep{color:var(--disabled);}
.crumb .current{color:var(--ink);font-weight:600;}

/* ============ hero ============ */
.hero{position:relative;overflow:hidden;padding:56px 0 64px;background:var(--bg);}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(47,107,255,.35) 1px,transparent 1px);
  background-size:24px 24px;opacity:.12;pointer-events:none;
}
.hero-inner{position:relative;z-index:1;display:grid;grid-template-columns:minmax(0,1fr) 360px;gap:56px;align-items:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
  background:#EAF1FF;color:var(--primary);font-size:13px;font-weight:600;margin-bottom:18px;
}
.hero h1{font-size:clamp(30px,4.4vw,46px);line-height:1.22;font-weight:700;}
.hero-sub{margin-top:18px;max-width:600px;font-size:17px;line-height:1.85;color:var(--text);}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.trust-row{display:flex;flex-wrap:wrap;gap:24px;margin-top:26px;}
.trust-item{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--muted);}
.trust-item i{color:var(--primary);font-size:13px;}
.hero-media{position:relative;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-card);border:1px solid rgba(47,107,255,.12);background:#EDF2FC;aspect-ratio:3/4;}
.hero-media img{width:100%;height:100%;object-fit:cover;}
.hero-media-badge{
  position:absolute;left:16px;bottom:16px;right:16px;
  background:rgba(15,30,61,.82);color:#fff;border-radius:14px;
  padding:12px 16px;font-size:13px;line-height:1.6;display:flex;align-items:center;gap:10px;
}
.hero-media-badge strong{font-size:20px;font-variant-numeric:tabular-nums;}

/* ============ stat strip ============ */
.stat-strip{margin-top:44px;position:relative;z-index:1;}
.stat-grid{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;
  background:#fff;border-radius:var(--radius-card);padding:26px 28px;
  box-shadow:var(--shadow-card);border:1px solid rgba(47,107,255,.10);
}
.stat-item{display:flex;align-items:center;gap:14px;}
.stat-icon{
  width:42px;height:42px;flex:0 0 42px;border-radius:14px;background:#EAF1FF;color:var(--primary);
  display:inline-flex;align-items:center;justify-content:center;font-size:16px;
}
.stat-num{font-size:40px;line-height:1;font-weight:700;color:var(--ink);font-variant-numeric:tabular-nums;}
.stat-label{font-size:13px;color:var(--muted);line-height:1.6;}

/* ============ section ============ */
.section{padding:72px 0;}
.section-alt{background:#fff;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;}
.section-head h2{font-size:clamp(24px,3vw,32px);line-height:1.3;}
.section-head p{margin-top:10px;font-size:15px;color:var(--muted);max-width:640px;}
.section-link{font-size:15px;font-weight:600;white-space:nowrap;display:inline-flex;align-items:center;gap:6px;}
.section-link:hover{text-decoration:none;color:var(--primary-dark);}
.section-link i{font-size:12px;transition:transform .2s ease;}
.section-link:hover i{transform:translateX(3px);}

/* ============ compare cards ============ */
.compare-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;align-items:start;}
.compare-col{display:grid;gap:24px;}
.compare-col-offset{margin-top:40px;}
.compare-card{
  background:#fff;border-radius:var(--radius-card);padding:28px;
  box-shadow:var(--shadow-card);border:1px solid rgba(47,107,255,.10);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.compare-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(47,107,255,.22);}
.compare-card h3{margin-top:14px;font-size:20px;line-height:1.4;font-weight:600;}
.compare-lead{margin-top:10px;font-size:14px;color:var(--muted);}
.tag{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:999px;font-size:12px;font-weight:600;line-height:1.7;}
.tag-blue{background:#EAF1FF;color:var(--primary);}
.tag-orange{background:#FFF1EA;color:#D9541F;}
.tag-green{background:#E7F8F2;color:#0B8A66;}
.tag-navy{background:#E8ECF5;color:var(--navy);}
.point-list{margin-top:20px;display:grid;gap:16px;}
.point{display:grid;grid-template-columns:82px minmax(0,1fr);gap:12px;align-items:start;padding-top:16px;border-top:1px dashed var(--border);}
.point:first-child{padding-top:0;border-top:0;}
.point-label{font-size:12px;font-weight:600;padding:3px 0;color:var(--muted);}
.point-label-good{color:var(--success);}
.point-label-warn{color:var(--danger);}
.point-label-navy{color:var(--primary);}
.point p{font-size:15px;line-height:1.8;color:var(--text);}
.point-conclusion p{color:var(--ink);font-weight:600;}

/* ============ table card ============ */
.table-card{
  background:#fff;border-radius:var(--radius-card);padding:10px;
  box-shadow:var(--shadow-card);border:1px solid var(--border);
}
.table-scroll{overflow-x:auto;border-radius:14px;}
.compare-table{width:100%;min-width:760px;border-collapse:separate;border-spacing:0;}
.compare-table th{
  background:#F0F5FF;color:var(--ink);font-size:14px;font-weight:600;
  text-align:left;padding:16px 18px;white-space:nowrap;border-bottom:1px solid var(--border);
}
.compare-table th:first-child{border-top-left-radius:14px;}
.compare-table th:last-child{border-top-right-radius:14px;}
.compare-table td{padding:16px 18px;font-size:15px;color:var(--text);border-top:1px solid var(--border);vertical-align:top;}
.compare-table tr td{border-top:1px solid var(--border);}
.compare-table tbody tr:first-child td{border-top:1px solid var(--border);}
.compare-table tbody tr:hover td{background:#FAFCFF;}
.compare-table .cell-strong{color:var(--ink);font-weight:600;}
.table-note{margin-top:16px;font-size:13px;color:var(--muted);display:flex;gap:8px;align-items:flex-start;}
.table-note i{color:var(--primary);margin-top:5px;}

/* ============ reviews ============ */
.review-track{
  display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:8px 24px 24px;margin:0 -24px;
}
.review-track::-webkit-scrollbar{height:8px;}
.review-track::-webkit-scrollbar-thumb{background:#D7E2F7;border-radius:8px;}
.review-card{
  flex:0 0 300px;scroll-snap-align:start;background:#fff;border-radius:var(--radius-card);
  padding:24px;box-shadow:var(--shadow-card);border:1px solid rgba(47,107,255,.10);
  transition:transform .25s ease,box-shadow .25s ease;
}
.review-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.review-top{display:flex;align-items:center;gap:12px;}
.avatar{
  width:60px;height:60px;flex:0 0 60px;border-radius:50%;background:#EDF2FC;color:var(--primary);
  display:inline-flex;align-items:center;justify-content:center;font-size:20px;font-weight:700;
}
.review-name{font-size:15px;font-weight:600;color:var(--ink);}
.review-meta{font-size:13px;color:var(--muted);}
.stars{margin-top:14px;display:flex;gap:4px;color:var(--accent);font-size:13px;}
.review-text{margin-top:12px;font-size:14px;line-height:1.8;color:var(--text);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}

/* ============ news list ============ */
.news-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
.news-card{
  display:flex;gap:16px;background:#fff;border-radius:var(--radius-card);padding:18px;
  box-shadow:var(--shadow-card);border:1px solid rgba(47,107,255,.10);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(47,107,255,.22);text-decoration:none;}
.news-thumb{
  width:120px;height:68px;flex:0 0 120px;border-radius:12px;overflow:hidden;background:#EDF2FC;
  border:1px solid rgba(47,107,255,.10);
}
.news-thumb img{width:100%;height:100%;object-fit:cover;}
.news-body{min-width:0;display:flex;flex-direction:column;}
.news-title{font-size:17px;font-weight:600;color:var(--ink);line-height:1.5;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;}
.news-card:hover .news-title{color:var(--primary);}
.news-desc{margin-top:6px;font-size:14px;color:var(--muted);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-meta{margin-top:auto;padding-top:10px;display:flex;align-items:center;gap:10px;font-size:13px;color:var(--muted);}
.news-meta .arrow{margin-left:auto;color:var(--primary);}

/* ============ faq ============ */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px;}
.faq-item{border:0;background:transparent;border-radius:16px;}
.faq-btn{
  width:100%;display:flex;align-items:center;gap:14px;
  background:#fff;border:1px solid var(--border);border-left:3px solid transparent;
  border-radius:16px !important;box-shadow:none !important;
  padding:18px 20px;font-size:16px;font-weight:600;color:var(--ink);
}
.faq-btn:not(.collapsed){
  border-left-color:var(--primary);border-radius:16px 16px 0 0 !important;
  background:#fff;color:var(--ink);box-shadow:none !important;
}
.faq-btn:focus{box-shadow:0 0 0 3px rgba(47,107,255,.16) !important;z-index:2;}
.faq-btn::after{
  content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;font-size:13px;
  background-image:none;color:var(--primary);margin-left:auto;width:auto;height:auto;
  display:inline-flex;align-items:center;justify-content:center;
}
.faq-btn:not(.collapsed)::after{content:"\f068";}
.faq-index{
  width:30px;height:30px;flex:0 0 30px;border-radius:10px;background:#EAF1FF;color:var(--primary);
  display:inline-flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;
  font-variant-numeric:tabular-nums;
}
.faq-body{
  background:#fff;border:1px solid var(--border);border-top:0;
  border-radius:0 0 16px 16px;padding:6px 22px 22px 66px;font-size:15px;line-height:1.85;color:var(--text);
}

/* ============ cta band ============ */
.cta-band{background:var(--navy);color:#C7D3E8;padding:56px 0;}
.cta-band-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;}
.cta-band h2{color:#fff;font-size:clamp(22px,2.6vw,30px);line-height:1.35;}
.cta-band p{margin-top:12px;font-size:15px;color:#C7D3E8;max-width:620px;}
.cta-band-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ============ footer ============ */
.site-footer{background:var(--navy);color:#C7D3E8;padding:64px 0 0;border-top:1px solid rgba(255,255,255,.12);}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:700;margin-bottom:16px;}
.footer-brand .brand-mark{background:var(--primary);}
.footer-col p{font-size:14px;line-height:1.85;color:#C7D3E8;max-width:340px;}
.footer-col h3{font-size:15px;color:#fff;font-weight:600;margin-bottom:16px;}
.footer-col ul{display:grid;gap:10px;}
.footer-col ul a{font-size:14px;color:#C7D3E8;}
.footer-col ul a:hover{color:#fff;text-decoration:underline;}
.footer-bottom{
  margin-top:48px;padding:22px 0;border-top:1px solid rgba(255,255,255,.12);
  display:flex;align-items:center;justify-content:space-between;gap:16px;font-size:13px;color:#93A4C4;
}

/* ============ responsive ============ */
@media (max-width:1199.98px){
  .hero-inner{grid-template-columns:minmax(0,1fr) 320px;gap:40px;}
  .nav-menu{gap:20px;}
}
@media (max-width:991.98px){
  .nav-menu{display:none;}
  .header-actions .btn{display:none;}
  .nav-toggle{display:inline-flex;}
  .hero{padding:44px 0 52px;}
  .hero-inner{grid-template-columns:1fr;gap:32px;}
  .hero-media{max-width:420px;margin:0 auto;aspect-ratio:4/3;}
  .stat-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;}
  .section{padding:56px 0;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;}
}
@media (max-width:767.98px){
  .container{padding-left:16px;padding-right:16px;}
  .section{padding:48px 0;}
  .hero h1{font-size:30px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:26px;}
  .compare-grid{grid-template-columns:1fr;}
  .compare-col-offset{margin-top:0;}
  .news-grid{grid-template-columns:1fr;}
  .cta-band-inner{flex-direction:column;align-items:flex-start;}
  .cta-band-actions{width:100%;}
  .faq-body{padding:6px 18px 20px 18px;}
  .review-card{flex:0 0 78vw;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:575.98px){
  body{font-size:15px;}
  .hero-actions{flex-direction:column;}
  .hero-actions .btn{width:100%;}
  .stat-grid{grid-template-columns:1fr;padding:22px;}
  .stat-num{font-size:34px;}
  .compare-card{padding:22px;}
  .point{grid-template-columns:1fr;gap:6px;}
  .news-card{flex-direction:column;}
  .news-thumb{width:100%;height:150px;flex:1 1 auto;}
  .cta-band-actions{flex-direction:column;}
  .cta-band-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
}