/* roulang page: index */
:root{
  --bg:#060C16;
  --bg-soft:#0A1626;
  --cyan:#2CE5D2;
  --lime:#C8F547;
  --amber:#FF9A3D;
  --text:#E8F0FA;
  --text-2:#A7B6C9;
  --text-3:#6F8098;
  --line:rgba(255,255,255,.09);
  --line-strong:rgba(255,255,255,.16);
  --glass:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  --r-lg:18px;
  --r-md:14px;
  --r-sm:12px;
  --shadow-card:0 18px 40px -20px rgba(0,0,0,.8);
  --shadow-glow:0 10px 30px rgba(200,245,71,.28);
  --shadow-glow-hover:0 14px 40px rgba(200,245,71,.42);
  --container:1200px;
  --sect:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--cyan);text-decoration:none;transition:color .2s ease,border-color .2s ease,background-color .2s ease,transform .2s ease,box-shadow .2s ease;}
a:hover{color:var(--lime);}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;box-shadow:0 0 0 4px rgba(44,229,210,.25);border-radius:6px;}
::selection{background:rgba(44,229,210,.3);color:#fff;}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding-left:32px;
  padding-right:32px;
}
.section{padding:var(--sect) 0;position:relative;}
.section--soft{background:linear-gradient(180deg,var(--bg-soft) 0%,var(--bg) 100%);}
.section-line{
  height:1px;border:0;margin:0;
  background:linear-gradient(90deg,rgba(44,229,210,0) 0%,rgba(44,229,210,.35) 50%,rgba(44,229,210,0) 100%);
}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:120;
  height:68px;
  background:rgba(6,12,22,.72);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid transparent;
  transition:background .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.site-header.is-scrolled{
  background:rgba(6,12,22,.94);
  border-bottom:1px solid rgba(44,229,210,.35);
  box-shadow:0 12px 30px -20px rgba(0,0,0,.9);
}
.nav-wrap{
  height:68px;display:flex;align-items:center;gap:26px;
}
.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto;color:var(--text);}
.brand:hover{color:var(--text);}
.brand-mark{
  width:34px;height:34px;border-radius:11px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,rgba(44,229,210,.9),rgba(200,245,71,.75));
  color:#06121F;font-size:15px;box-shadow:0 8px 22px -10px rgba(44,229,210,.9);
}
.brand-text{font-size:16px;letter-spacing:.01em;white-space:nowrap;}
.brand-text strong{font-weight:800;}
.brand-text span{font-weight:400;color:var(--text-2);}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:8px;flex:1 1 auto;}
.nav-link{
  position:relative;display:inline-block;padding:8px 13px;border-radius:10px;
  font-size:14.5px;color:var(--text-2);white-space:nowrap;font-weight:500;
}
.nav-link::after{
  content:"";position:absolute;left:13px;right:13px;bottom:2px;height:2px;border-radius:2px;
  background:var(--cyan);transform:scaleX(0);transform-origin:left;transition:transform .25s ease;
  box-shadow:0 0 12px rgba(44,229,210,.7);
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--text);font-weight:700;}
.nav-link.is-active::after{transform:scaleX(1);}
.nav-right{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.command-search{
  position:relative;display:flex;align-items:center;gap:8px;
  width:220px;height:38px;padding:0 10px 0 12px;border-radius:12px;
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.command-search i{font-size:13px;color:var(--text-3);}
.command-search input{
  flex:1;min-width:0;border:0;background:transparent;height:36px;font-size:14px;color:var(--text);
}
.command-search input::placeholder{color:var(--text-3);}
.command-search input:focus{outline:none;}
.command-search:focus-within{
  border-color:var(--cyan);
  box-shadow:0 0 0 3px rgba(44,229,210,.18),0 0 18px rgba(44,229,210,.22);
  background:rgba(44,229,210,.06);
}
.command-search kbd{
  font-family:system-ui,sans-serif;font-size:11px;letter-spacing:.06em;
  padding:2px 6px;border-radius:6px;color:var(--text-3);
  border:1px solid var(--line);background:rgba(255,255,255,.04);
}
.icon-btn{
  width:38px;height:38px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  color:var(--text-2);border:1px solid var(--line);background:rgba(255,255,255,.03);font-size:15px;
}
.icon-btn:hover{color:var(--cyan);border-color:rgba(44,229,210,.45);background:rgba(44,229,210,.08);}
.menu-toggle{
  display:none;width:40px;height:40px;border-radius:12px;border:1px solid var(--line);
  background:rgba(255,255,255,.04);color:var(--text);cursor:pointer;
}
.menu-toggle:hover{color:var(--cyan);border-color:rgba(44,229,210,.45);}

.mobile-drawer{
  position:fixed;inset:68px 0 0 auto;width:min(88vw,360px);
  background:linear-gradient(180deg,rgba(10,22,38,.99),rgba(6,12,22,.99));
  border-left:1px solid var(--line);
  transform:translateX(102%);
  transition:transform .32s cubic-bezier(.4,.1,.2,1);
  z-index:118;padding:22px 20px 32px;display:flex;flex-direction:column;gap:8px;
  overflow-y:auto;
}
.mobile-drawer.is-open{transform:translateX(0);}
.mobile-drawer .drawer-label{
  font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--text-3);margin:8px 0 4px;
}
.mobile-drawer .nav-link{display:block;padding:12px 14px;font-size:15.5px;border-radius:12px;}
.mobile-drawer .nav-link::after{display:none;}
.mobile-drawer .nav-link.is-active{background:rgba(44,229,210,.1);color:var(--cyan);}
.drawer-foot{margin-top:auto;display:flex;flex-direction:column;gap:12px;padding-top:22px;border-top:1px solid var(--line);}
.drawer-foot .command-search{width:100%;}
.overlay-mask{
  position:fixed;inset:0;background:rgba(3,7,13,.6);backdrop-filter:blur(2px);
  opacity:0;pointer-events:none;transition:opacity .3s ease;z-index:110;
}
.overlay-mask.is-open{opacity:1;pointer-events:auto;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 24px;border-radius:12px;font-size:15px;font-weight:700;
  border:1px solid transparent;cursor:pointer;line-height:1.2;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
}
.btn-primary{
  background:var(--lime);color:#06121F;box-shadow:var(--shadow-glow);
}
.btn-primary:hover{background:#d6ff5d;color:#06121F;transform:translateY(-2px);box-shadow:var(--shadow-glow-hover);}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 16px rgba(200,245,71,.3);}
.btn-ghost{
  background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  color:var(--cyan);border-color:rgba(44,229,210,.34);
}
.btn-ghost:hover{color:var(--cyan);border-color:var(--cyan);box-shadow:0 0 0 3px rgba(44,229,210,.14),0 10px 26px -14px rgba(44,229,210,.8);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{padding:9px 16px;font-size:14px;border-radius:11px;}
.btn[disabled],.btn:disabled{opacity:.45;cursor:not-allowed;box-shadow:none;transform:none;}
.link-arrow{
  display:inline-flex;align-items:center;gap:8px;font-size:14.5px;font-weight:600;color:var(--cyan);
}
.link-arrow i{transition:transform .22s ease;font-size:12px;}
.link-arrow:hover i{transform:translateX(3px);}

/* ============ 通用 ============ */
.eyebrow{
  display:inline-block;font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:var(--cyan);margin-bottom:14px;
}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;font-size:12px;font-weight:600;
  border:1px solid var(--line);background:rgba(255,255,255,.05);color:var(--text-2);
}
.badge-cyan{color:var(--cyan);border-color:rgba(44,229,210,.35);background:rgba(44,229,210,.09);}
.badge-amber{color:var(--amber);border-color:rgba(255,154,61,.35);background:rgba(255,154,61,.1);}
.section-head{
  display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;
  gap:22px;margin-bottom:46px;
}
.section-head .head-copy{max-width:660px;}
.section-head h2{font-size:32px;line-height:1.35;font-weight:800;margin-bottom:12px;}
.section-head p{color:var(--text-2);font-size:16px;}
.section-head.is-center{flex-direction:column;align-items:center;text-align:center;}
.section-head.is-center .head-copy{max-width:720px;}
.section-head.is-right{flex-direction:row-reverse;text-align:right;}
.section-head.is-right .head-copy{margin-left:auto;}

.card{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow-card);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
  position:relative;overflow:hidden;
}
.card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,rgba(255,255,255,0) 0%,rgba(255,255,255,.35) 50%,rgba(255,255,255,0) 100%);
}
.card:hover{transform:translateY(-4px);border-color:rgba(44,229,210,.34);box-shadow:0 24px 50px -24px rgba(0,0,0,.9);}

/* ============ Hero ============ */
.hero{
  position:relative;padding:74px 0 88px;overflow:hidden;
}
.hero::before{
  content:"";position:absolute;top:-220px;left:-140px;width:680px;height:680px;
  background:radial-gradient(circle,rgba(44,229,210,.13) 0%,rgba(44,229,210,0) 68%);
  pointer-events:none;
}
.hero::after{
  content:"";position:absolute;bottom:-260px;right:-180px;width:620px;height:620px;
  background:radial-gradient(circle,rgba(200,245,71,.09) 0%,rgba(200,245,71,0) 70%);
  pointer-events:none;
}
.hero-grid{position:relative;z-index:2;align-items:center;}
.hero-copy{max-width:640px;}
.hero h1{
  font-size:44px;line-height:1.28;font-weight:800;letter-spacing:.01em;margin:20px 0 18px;
}
.hero h1 em{
  font-style:normal;
  background:linear-gradient(96deg,var(--cyan) 0%,var(--lime) 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{font-size:17px;color:var(--text-2);max-width:560px;margin-bottom:32px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px;}
.trust-row{display:flex;flex-wrap:wrap;gap:22px;}
.trust-item{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--text-2);}
.trust-item i{color:var(--cyan);font-size:13px;}

.hero-visual{position:relative;}
.hero-photo{
  position:relative;border-radius:20px;overflow:hidden;border:1px solid var(--line);
  box-shadow:0 30px 60px -30px rgba(0,0,0,.95);
}
.hero-photo img{width:100%;aspect-ratio:16/11;object-fit:cover;}
.hero-photo::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,12,22,.15) 0%,rgba(6,12,22,.72) 100%);
}
.hero-stats{
  position:absolute;left:-12px;bottom:-26px;z-index:3;
  display:flex;gap:26px;padding:18px 24px;border-radius:16px;
  background:linear-gradient(160deg,rgba(10,22,38,.96),rgba(6,12,22,.9));
  border:1px solid rgba(44,229,210,.28);
  box-shadow:0 22px 50px -22px rgba(0,0,0,.95);
  backdrop-filter:blur(16px);
}
.hero-stats .stat-num{
  font-family:system-ui,sans-serif;font-size:26px;font-weight:800;color:var(--cyan);
  letter-spacing:.02em;line-height:1.1;text-shadow:0 0 22px rgba(44,229,210,.5);
}
.hero-stats .stat-num.is-lime{color:var(--lime);text-shadow:0 0 22px rgba(200,245,71,.45);}
.hero-stats .stat-label{font-size:12.5px;color:var(--text-2);margin-top:4px;}

/* ============ 痛点 ============ */
.pain-layout{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,6fr);gap:56px;align-items:start;}
.pain-copy h2{font-size:32px;font-weight:800;line-height:1.35;margin-bottom:16px;}
.pain-copy p{color:var(--text-2);margin-bottom:22px;}
.pain-list{border-top:1px solid var(--line);}
.pain-item{
  display:flex;gap:20px;align-items:flex-start;padding:22px 6px;border-bottom:1px solid var(--line);
  transition:background .25s ease,padding-left .25s ease;
}
.pain-item:hover{background:rgba(255,255,255,.03);padding-left:12px;}
.pain-item .num{
  font-family:system-ui,sans-serif;font-size:14px;font-weight:700;letter-spacing:.1em;color:var(--cyan);
  padding-top:4px;flex:0 0 auto;
}
.pain-item h3{font-size:17px;font-weight:700;margin-bottom:4px;}
.pain-item p{font-size:14.5px;color:var(--text-2);}

/* ============ 方案图文 ============ */
.split{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:56px;align-items:center;}
.split + .split{margin-top:78px;}
.split-media{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-card);position:relative;}
.split-media img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.split-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,12,22,0) 40%,rgba(6,12,22,.55) 100%);}
.split-body h3{font-size:24px;font-weight:800;margin-bottom:14px;line-height:1.4;}
.split-body p{color:var(--text-2);margin-bottom:16px;}
.check-list{display:grid;gap:12px;margin-top:6px;}
.check-list li{display:flex;gap:11px;align-items:flex-start;font-size:15px;color:var(--text-2);}
.check-list i{color:var(--cyan);margin-top:6px;font-size:13px;}

/* ============ 三步流程 ============ */
.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin-top:64px;position:relative;}
.step-card{padding:30px 26px;}
.step-card .step-num{
  position:relative;z-index:2;width:44px;height:44px;border-radius:13px;display:flex;align-items:center;justify-content:center;
  font-family:system-ui,sans-serif;font-weight:800;font-size:16px;color:#06121F;
  background:linear-gradient(140deg,var(--cyan),var(--lime));
  box-shadow:0 10px 26px -12px rgba(44,229,210,.95);margin-bottom:18px;
}
.step-card h3{font-size:19px;font-weight:700;margin-bottom:10px;}
.step-card p{font-size:14.5px;color:var(--text-2);}

/* ============ 数据条 ============ */
.metrics{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:26px;}
.metric{padding:8px 4px;border-left:2px solid rgba(44,229,210,.28);padding-left:20px;}
.metric .m-num{
  font-family:system-ui,sans-serif;font-size:40px;font-weight:800;line-height:1.1;letter-spacing:.01em;
  color:var(--lime);text-shadow:0 0 26px rgba(200,245,71,.35);
}
.metric:nth-child(even) .m-num{color:var(--cyan);text-shadow:0 0 26px rgba(44,229,210,.4);}
.metric .m-label{font-size:15px;font-weight:600;margin-top:10px;}
.metric .m-desc{font-size:13.5px;color:var(--text-3);margin-top:4px;}

/* ============ 证言 ============ */
.quotes{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:26px;}
.quote-card{padding:32px 30px 28px;position:relative;}
.quote-card .quote-mark{
  font-family:Georgia,serif;font-size:54px;line-height:1;color:rgba(44,229,210,.35);
  position:absolute;top:14px;right:24px;
}
.quote-card blockquote{margin:0 0 22px;font-size:16px;color:var(--text);line-height:1.85;}
.quote-user{display:flex;align-items:center;gap:14px;}
.quote-user img{width:48px;height:48px;border-radius:50%;object-fit:cover;border:1px solid rgba(44,229,210,.4);}
.quote-user .u-name{font-size:15px;font-weight:700;}
.quote-user .u-org{font-size:13px;color:var(--text-3);}

/* ============ 资讯列表 ============ */
.news-grid{margin-top:6px;}
.news-card{height:100%;display:flex;flex-direction:column;overflow:hidden;padding:0;}
.news-thumb{position:relative;display:block;overflow:hidden;}
.news-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .45s ease;}
.news-card:hover .news-thumb img{transform:scale(1.05);}
.news-thumb .news-badge{
  position:absolute;left:14px;top:14px;
  padding:5px 12px;border-radius:999px;font-size:12px;font-weight:700;
  color:#06121F;background:var(--lime);
}
.news-body{padding:22px 22px 20px;display:flex;flex-direction:column;flex:1 1 auto;}
.news-body h3{font-size:17.5px;font-weight:700;line-height:1.55;margin-bottom:10px;}
.news-body h3 a{color:var(--text);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-body h3 a:hover{color:var(--cyan);}
.news-body .news-sum{
  font-size:14.5px;color:var(--text-2);margin-bottom:18px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  padding-top:14px;border-top:1px solid var(--line);font-size:13px;color:var(--text-3);
}
.news-foot i{color:var(--cyan);font-size:12px;transition:transform .22s ease;}
.news-card:hover .news-foot i{transform:translateX(3px);}
.empty-state{
  text-align:center;padding:64px 28px;border-radius:var(--r-lg);
  border:1px dashed var(--line-strong);background:rgba(255,255,255,.02);
}
.empty-state i{font-size:30px;color:var(--cyan);margin-bottom:16px;display:block;}
.empty-state p{color:var(--text-2);margin-bottom:20px;}

/* ============ FAQ ============ */
.custom-faq{border:0;background:transparent;max-width:none;}
.custom-faq .accordion-item{
  position:relative;border:1px solid var(--line);border-radius:var(--r-md);
  background:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  margin-bottom:14px;overflow:hidden;transition:border-color .25s ease,background .25s ease;
}
.custom-faq .accordion-item:hover{border-color:rgba(44,229,210,.3);}
.custom-faq .accordion-item.is-active{border-color:rgba(44,229,210,.42);background:linear-gradient(160deg,rgba(44,229,210,.08),rgba(255,255,255,.02));}
.custom-faq .accordion-item.is-active::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--cyan);
  box-shadow:0 0 16px rgba(44,229,210,.8);
}
.custom-faq .accordion-title{
  background:transparent;border:0;padding:20px 58px 20px 58px;color:var(--text);
  font-size:16px;font-weight:600;line-height:1.6;position:relative;
}
.custom-faq .accordion-title:hover,.custom-faq .accordion-title:focus{background:transparent;color:var(--cyan);}
.custom-faq .accordion-title::before{
  content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);
  font-weight:200;font-size:24px;line-height:1;color:var(--cyan);width:auto;margin:0;
  transition:transform .3s ease,color .3s ease;
}
.custom-faq .accordion-item.is-active .accordion-title::before{
  content:"+";transform:translateY(-50%) rotate(45deg);color:var(--lime);
}
.custom-faq .faq-num{
  position:absolute;left:22px;top:50%;transform:translateY(-50%);
  font-family:system-ui,sans-serif;font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--cyan);
}
.custom-faq .accordion-content{
  background:transparent;border:0;color:var(--text-2);padding:0 58px 24px 58px;font-size:15px;line-height:1.9;
}
.custom-faq .accordion-content p{margin-bottom:10px;}
.custom-faq .accordion-content p:last-child{margin-bottom:0;}

/* ============ CTA ============ */
.cta-panel{
  position:relative;overflow:hidden;border-radius:20px;padding:64px 56px;
  background:linear-gradient(120deg,rgba(10,22,38,.96) 0%,rgba(6,12,22,.9) 100%);
  border:1px solid rgba(44,229,210,.24);
  box-shadow:0 30px 70px -34px rgba(0,0,0,.95);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:32px;
}
.cta-panel::before{
  content:"";position:absolute;top:-180px;right:-120px;width:520px;height:520px;
  background:radial-gradient(circle,rgba(44,229,210,.16) 0%,rgba(44,229,210,0) 68%);pointer-events:none;
}
.cta-panel h2{font-size:30px;font-weight:800;margin-bottom:12px;position:relative;z-index:2;}
.cta-panel p{color:var(--text-2);max-width:620px;position:relative;z-index:2;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;position:relative;z-index:2;}

/* ============ 页脚 ============ */
.site-footer{
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,var(--bg-soft) 0%,#04080F 100%);
  padding:70px 0 0;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:44px;}
.footer-brand .brand{margin-bottom:18px;}
.footer-brand p{font-size:14.5px;color:var(--text-2);max-width:320px;margin-bottom:20px;}
.footer-social{display:flex;gap:10px;}
.footer-social a{
  width:36px;height:36px;border-radius:11px;display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line);color:var(--text-2);background:rgba(255,255,255,.03);font-size:14px;
}
.footer-social a:hover{color:var(--cyan);border-color:rgba(44,229,210,.45);background:rgba(44,229,210,.08);}
.footer-col h4{
  font-size:13px;letter-spacing:.12em;text-transform:uppercase;color:var(--text-3);
  font-weight:700;margin-bottom:18px;
}
.footer-col ul{display:grid;gap:11px;}
.footer-col a{font-size:14.5px;color:var(--text-2);}
.footer-col a:hover{color:var(--cyan);}
.footer-contact li{font-size:14.5px;color:var(--text-2);display:flex;gap:10px;align-items:flex-start;margin-bottom:11px;}
.footer-contact i{color:var(--cyan);margin-top:6px;font-size:13px;}
.footer-bottom{
  margin-top:56px;padding:22px 0;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  font-size:13px;color:var(--text-3);
}

/* ============ 响应式 ============ */
@media (min-width:1440px){
  :root{--container:1280px;}
}
@media (max-width:1279px){
  .command-search{width:180px;}
}
@media (max-width:1023px){
  :root{--sect:64px;}
  .container{padding-left:24px;padding-right:24px;}
  .main-nav{display:none;}
  .command-search{display:none;}
  .icon-btn{display:none;}
  .menu-toggle{display:flex;align-items:center;justify-content:center;}
  .nav-wrap{gap:14px;justify-content:space-between;}
  .site-header,.nav-wrap{height:60px;}
  .mobile-drawer{inset:60px 0 0 auto;}
  .hero{padding:52px 0 66px;}
  .hero h1{font-size:34px;}
  .hero-sub{font-size:16px;}
  .hero-stats{position:static;margin-top:20px;left:auto;bottom:auto;width:100%;justify-content:space-between;}
  .pain-layout{grid-template-columns:1fr;gap:34px;}
  .split{grid-template-columns:1fr;gap:30px;}
  .split + .split{margin-top:52px;}
  .split.reverse .split-media{order:2;}
  .steps{grid-template-columns:1fr;gap:16px;margin-top:46px;}
  .metrics{grid-template-columns:repeat(2,minmax(0,1fr));gap:30px 22px;}
  .quotes{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:34px;}
  .section-head h2,.pain-copy h2{font-size:26px;}
  .cta-panel{padding:44px 30px;}
  .cta-panel h2{font-size:25px;}
  .split-body h3{font-size:21px;}
}
@media (max-width:639px){
  :root{--sect:48px;}
  .container{padding-left:18px;padding-right:18px;}
  body{font-size:16px;}
  .hero h1{font-size:28px;}
  .hero-actions{gap:10px;}
  .btn{width:100%;}
  .hero-actions .btn,.cta-actions .btn{width:100%;}
  .trust-row{gap:14px;}
  .hero-stats{gap:16px;padding:16px 18px;}
  .hero-stats .stat-num{font-size:22px;}
  .metrics{grid-template-columns:1fr;}
  .quotes{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .section-head h2,.pain-copy h2{font-size:22px;}
  .split-body h3{font-size:19px;}
  .custom-faq .accordion-title{padding:18px 48px 18px 48px;font-size:15px;}
  .custom-faq .faq-num{left:16px;font-size:12px;}
  .custom-faq .accordion-title::before{right:16px;font-size:20px;}
  .custom-faq .accordion-content{padding:0 20px 20px 48px;}
  .cta-panel{padding:34px 22px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* roulang page: article */
:root{
  --c-bg:#060C16;
  --c-bg-soft:#0A1626;
  --c-brand:#2CE5D2;
  --c-cta:#C8F547;
  --c-amber:#FF9A3D;
  --c-text:#E8F0FA;
  --c-text-2:#A7B6C9;
  --c-text-3:#6F8098;
  --c-line:rgba(255,255,255,.09);
  --c-line-strong:rgba(44,229,210,.34);
  --glass:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  --r-lg:18px;
  --r-md:14px;
  --r-sm:12px;
  --r-pill:999px;
  --sh-card:0 18px 40px -20px rgba(0,0,0,.8);
  --sh-cta:0 10px 30px rgba(200,245,71,.28);
  --sh-cta-hover:0 14px 40px rgba(200,245,71,.42);
  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --font-mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,"Liberation Mono",monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
body.is-locked{overflow:hidden;}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;transition:color .22s ease;}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px;}
h1,h2,h3,h4,h5,h6,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
button{font-family:inherit;}
::selection{background:rgba(44,229,210,.3);color:#fff;}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:32px;
  padding-right:32px;
}
@media (min-width:1440px){.container{max-width:1280px;}}
@media (max-width:1023px){.container{padding-left:24px;padding-right:24px;}}
@media (max-width:639px){.container{padding-left:18px;padding-right:18px;}}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:0;cursor:pointer;font-family:inherit;font-size:15px;font-weight:600;
  letter-spacing:.02em;padding:13px 24px;border-radius:var(--r-sm);
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease,color .22s ease;
  white-space:nowrap;line-height:1.2;
}
.btn-primary{background:var(--c-cta);color:#06121F;box-shadow:var(--sh-cta);}
.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--sh-cta-hover);background:#d6fa62;color:#06121F;}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 18px rgba(200,245,71,.3);}
.btn-primary[disabled],.btn-primary.is-disabled{opacity:.5;cursor:not-allowed;box-shadow:none;transform:none;}
.btn-ghost{background:rgba(255,255,255,.04);color:var(--c-brand);border:1px solid rgba(44,229,210,.42);}
.btn-ghost:hover{border-color:var(--c-brand);box-shadow:0 0 0 1px rgba(44,229,210,.35),0 12px 30px -16px rgba(44,229,210,.75);color:var(--c-brand);}
.btn-ghost:active{background:rgba(44,229,210,.12);}
.btn.btn-sm{padding:9px 16px;font-size:14px;border-radius:10px;}
.btn.btn-block{width:100%;}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;color:var(--c-brand);
  font-size:14px;font-weight:600;letter-spacing:.02em;
}
.btn-link i{transition:transform .22s ease;}
.btn-link:hover{color:#7ff3e7;}
.btn-link:hover i{transform:translateX(3px);}
.btn:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(44,229,210,.55);}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:5px 13px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:600;letter-spacing:.06em;line-height:1.5;white-space:nowrap;
}
.badge-brand{background:rgba(44,229,210,.12);color:var(--c-brand);border:1px solid rgba(44,229,210,.3);}
.badge-amber{background:rgba(255,154,61,.13);color:var(--c-amber);border:1px solid rgba(255,154,61,.3);}

/* ---------- 玻璃卡片 ---------- */
.glass{
  background:var(--glass);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  box-shadow:var(--sh-card);
}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(6,12,22,.72);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid transparent;
  transition:background .3s ease,border-color .3s ease;
}
.site-header.is-scrolled{background:rgba(6,12,22,.92);border-bottom-color:rgba(44,229,210,.3);}
.nav-wrap{display:flex;align-items:center;gap:26px;height:68px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:34px;height:34px;border-radius:11px;display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(150deg,rgba(44,229,210,.22),rgba(200,245,71,.14));
  border:1px solid rgba(44,229,210,.35);color:var(--c-brand);font-size:15px;
}
.brand-text{display:flex;align-items:baseline;gap:4px;font-size:17px;letter-spacing:.01em;color:var(--c-text);white-space:nowrap;}
.brand-text strong{font-weight:800;}
.brand-text span{font-weight:400;color:var(--c-text-2);}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:6px;}
.nav-link{
  position:relative;padding:8px 12px;font-size:14.5px;color:var(--c-text-2);border-radius:10px;
  transition:color .22s ease,background .22s ease;
}
.nav-link:hover{color:var(--c-text);background:rgba(255,255,255,.05);}
.nav-link.is-active{color:var(--c-text);font-weight:600;}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:1px;height:2px;border-radius:2px;
  background:var(--c-brand);box-shadow:0 0 10px rgba(44,229,210,.7);
}
.nav-tools{display:flex;align-items:center;gap:10px;margin-left:auto;}
.nav-search{
  display:flex;align-items:center;gap:8px;width:220px;height:38px;padding:0 10px;
  background:rgba(255,255,255,.05);border:1px solid var(--c-line);border-radius:10px;
  transition:border-color .22s ease,box-shadow .22s ease;
}
.nav-search i{color:var(--c-text-3);font-size:13px;}
.nav-search input{
  flex:1;min-width:0;background:transparent;border:0;color:var(--c-text);font-size:13.5px;
  font-family:inherit;padding:0;outline:none;
}
.nav-search input::placeholder{color:var(--c-text-3);}
.nav-search kbd{
  font-family:var(--font-mono);font-size:11px;color:var(--c-text-3);
  border:1px solid var(--c-line);border-radius:5px;padding:1px 5px;background:rgba(255,255,255,.03);
}
.nav-search:focus-within{border-color:var(--c-brand);box-shadow:0 0 0 3px rgba(44,229,210,.16);}
.icon-btn{
  position:relative;width:38px;height:38px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;
  color:var(--c-text-2);background:rgba(255,255,255,.04);border:1px solid var(--c-line);
  transition:color .22s ease,border-color .22s ease,background .22s ease;
}
.icon-btn:hover{color:var(--c-brand);border-color:rgba(44,229,210,.4);background:rgba(44,229,210,.08);}
.icon-btn::after{
  content:attr(data-tip);position:absolute;top:calc(100% + 9px);left:50%;transform:translateX(-50%);
  white-space:nowrap;font-size:12px;padding:4px 9px;border-radius:8px;
  background:rgba(10,22,38,.96);border:1px solid var(--c-line);color:var(--c-text-2);
  opacity:0;visibility:hidden;transition:.22s ease;pointer-events:none;z-index:5;
}
.icon-btn:hover::after{opacity:1;visibility:visible;}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:10px;background:rgba(255,255,255,.04);
  border:1px solid var(--c-line);cursor:pointer;padding:0;flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
.nav-toggle span{display:block;width:17px;height:2px;border-radius:2px;background:var(--c-text-2);transition:.25s ease;}
.nav-toggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg);background:var(--c-brand);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg);background:var(--c-brand);}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(86vw,340px);z-index:80;
  background:linear-gradient(180deg,#0A1626,#060C16);
  border-left:1px solid var(--c-line);transform:translateX(102%);
  transition:transform .34s cubic-bezier(.4,0,.2,1);overflow-y:auto;
  padding:84px 22px 34px;
}
.mobile-drawer.is-open{transform:translateX(0);}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:22px;}
.drawer-nav a{
  padding:12px 14px;border-radius:12px;color:var(--c-text-2);font-size:15px;
  border:1px solid transparent;transition:.22s ease;
}
.drawer-nav a:hover,.drawer-nav a.is-active{color:var(--c-text);background:rgba(255,255,255,.05);border-color:var(--c-line);}
.drawer-search{width:100%;margin-bottom:16px;}
.drawer-mask{
  position:fixed;inset:0;background:rgba(3,7,13,.7);backdrop-filter:blur(3px);
  opacity:0;visibility:hidden;transition:.3s ease;z-index:70;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
@media (max-width:1023px){
  .main-nav,.nav-search,.nav-tools .icon-btn,.nav-cta{display:none;}
  .nav-toggle{display:flex;}
  .brand-text{font-size:16px;}
}
@media (max-width:639px){
  .nav-wrap{height:60px;gap:14px;}
  .brand-mark{width:30px;height:30px;border-radius:9px;font-size:13px;}
  .brand-text{font-size:15px;}
}

/* ---------- 文章头部横幅 ---------- */
.article-hero{
  position:relative;
  padding:34px 0 30px;
  background:
    radial-gradient(760px 320px at 12% -30%,rgba(44,229,210,.10),transparent 70%),
    radial-gradient(560px 280px at 88% -10%,rgba(200,245,71,.07),transparent 70%),
    linear-gradient(180deg,#0A1626 0%,#060C16 100%);
  border-bottom:1px solid var(--c-line);
  overflow:hidden;
}
.article-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.05;
  background-image:linear-gradient(rgba(255,255,255,.6) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.6) 1px,transparent 1px);
  background-size:56px 56px;
}
.article-hero .container{position:relative;z-index:1;}
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--c-text-3);}
.breadcrumb a{color:var(--c-text-3);}
.breadcrumb a:hover{color:var(--c-brand);}
.crumb-sep{color:rgba(255,255,255,.2);}
.crumb-current{color:var(--c-text-2);max-width:min(60ch,100%);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- 文章主体布局 ---------- */
.article-section{padding:56px 0 96px;}
.article-layout{display:flex;flex-wrap:wrap;}
.article-layout > .cell{padding-right:30px;}
.article-layout > .cell:last-child{padding-right:0;padding-left:30px;}
@media (max-width:1023px){
  .article-section{padding:40px 0 64px;}
  .article-layout > .cell{padding-right:0;padding-left:0;}
}

.article-head{padding-bottom:26px;border-bottom:1px solid var(--c-line);margin-bottom:34px;}
.article-head .badge{margin-bottom:16px;}
.article-title{
  font-size:44px;line-height:1.28;font-weight:800;letter-spacing:.01em;color:var(--c-text);
  margin-bottom:18px;word-break:break-word;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;font-size:13.5px;color:var(--c-text-3);}
.article-meta .meta-item{display:inline-flex;align-items:center;gap:7px;}
.article-meta .meta-item i{color:var(--c-brand);font-size:12.5px;}
@media (max-width:1023px){.article-title{font-size:34px;}}
@media (max-width:639px){.article-title{font-size:28px;line-height:1.34;margin-bottom:14px;}}

/* ---------- 正文排版 ---------- */
.article-body{
  font-size:17px;line-height:1.95;color:var(--c-text-2);
  word-break:break-word;
}
.article-body p{margin:0 0 1.4em;}
.article-body h2{
  position:relative;padding-left:18px;margin:2em 0 .8em;
  font-size:32px;line-height:1.4;font-weight:700;color:var(--c-text);letter-spacing:.01em;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.34em;width:4px;height:1em;border-radius:2px;
  background:var(--c-brand);box-shadow:0 0 12px rgba(44,229,210,.6);
}
.article-body h3{
  position:relative;padding-left:16px;margin:1.7em 0 .7em;
  font-size:22px;line-height:1.45;font-weight:700;color:var(--c-text);
}
.article-body h3::before{
  content:"";position:absolute;left:0;top:.36em;width:3px;height:.9em;border-radius:2px;
  background:rgba(44,229,210,.5);
}
.article-body h4{margin:1.5em 0 .6em;font-size:18px;font-weight:700;color:var(--c-text);}
.article-body strong{color:var(--c-text);font-weight:700;}
.article-body a{color:var(--c-brand);border-bottom:1px solid rgba(44,229,210,.35);}
.article-body a:hover{color:#7ff3e7;border-bottom-color:#7ff3e7;}
.article-body ul,.article-body ol{margin:0 0 1.4em;padding-left:0;}
.article-body ul li,.article-body ol li{
  position:relative;padding-left:24px;margin-bottom:.55em;
}
.article-body ul li::before{
  content:"";position:absolute;left:6px;top:.78em;width:6px;height:6px;border-radius:50%;
  background:var(--c-brand);box-shadow:0 0 8px rgba(44,229,210,.7);
}
.article-body ol{counter-reset:artnum;}
.article-body ol li{counter-increment:artnum;padding-left:32px;}
.article-body ol li::before{
  content:counter(artnum,decimal-leading-zero);
  position:absolute;left:0;top:0;font-family:var(--font-mono);
  font-size:13px;font-weight:600;color:var(--c-brand);letter-spacing:.06em;line-height:2.5;
}
.article-body blockquote{
  margin:1.7em 0;padding:18px 24px;border-left:3px solid var(--c-brand);
  background:rgba(44,229,210,.06);border-radius:0 12px 12px 0;color:var(--c-text-2);font-size:16.5px;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{
  width:100%;height:auto;border-radius:14px;border:1px solid var(--c-line);
  margin:1.5em 0 .6em;
}
.article-body figure{margin:1.6em 0;}
.article-body figcaption{font-size:13px;color:var(--c-text-3);text-align:center;margin-top:.5em;}
.article-body table{
  width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15px;
  border:1px solid var(--c-line);border-radius:12px;overflow:hidden;
}
.article-body thead th{
  background:rgba(44,229,210,.09);color:var(--c-brand);font-weight:600;
  text-align:left;padding:13px 16px;border:0;font-size:13.5px;letter-spacing:.06em;
}
.article-body tbody td{
  padding:13px 16px;border:0;border-top:1px solid var(--c-line);color:var(--c-text-2);
}
.article-body tbody tr:nth-child(even){background:rgba(255,255,255,.03);}
.article-body tbody tr:hover{background:rgba(44,229,210,.05);}
.article-body pre{
  margin:1.6em 0;padding:18px 20px;background:#04080F;border:1px solid var(--c-line);
  border-radius:12px;overflow-x:auto;font-family:var(--font-mono);font-size:14px;
  line-height:1.75;color:#BFE9E3;
}
.article-body code{
  font-family:var(--font-mono);font-size:.9em;background:rgba(255,255,255,.06);
  padding:2px 6px;border-radius:6px;color:#BFE9E3;
}
.article-body pre code{background:none;padding:0;border-radius:0;}
.article-body hr{border:0;height:1px;margin:2.2em 0;background:linear-gradient(90deg,transparent,rgba(44,229,210,.4),transparent);}
@media (max-width:1023px){
  .article-body{font-size:16.5px;}
  .article-body h2{font-size:26px;}
  .article-body h3{font-size:19px;}
}
@media (max-width:639px){
  .article-body{font-size:16px;line-height:1.9;}
  .article-body h2{font-size:22px;padding-left:14px;}
  .article-body h3{font-size:17px;padding-left:13px;}
  .article-body table{font-size:13.5px;}
  .article-body thead th,.article-body tbody td{padding:10px 12px;}
}

/* ---------- 空态 ---------- */
.empty-state{
  text-align:center;padding:56px 26px;border-radius:var(--r-lg);
  background:var(--glass);border:1px solid var(--c-line);
}
.empty-state i{font-size:34px;color:var(--c-brand);margin-bottom:16px;display:block;}
.empty-state p{color:var(--c-text-2);margin-bottom:22px;}

/* ---------- 文末区 ---------- */
.article-foot{margin-top:54px;}
.foot-block{margin-bottom:44px;}
.foot-block-title{
  font-size:16px;font-weight:700;color:var(--c-text);letter-spacing:.04em;
  margin-bottom:16px;display:flex;align-items:center;gap:9px;
}
.foot-block-title i{color:var(--c-brand);font-size:14px;}
.tag-list{display:flex;flex-wrap:wrap;gap:10px;}
.tag-pill{
  display:inline-flex;align-items:center;padding:7px 15px;border-radius:var(--r-pill);
  font-size:13px;color:var(--c-text-2);background:rgba(255,255,255,.04);
  border:1px solid var(--c-line);transition:.22s ease;
}
.tag-pill:hover{color:var(--c-brand);border-color:var(--c-line-strong);background:rgba(44,229,210,.08);}
.pager-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.pager-card{
  display:block;padding:20px 22px;border-radius:var(--r-md);
  background:var(--glass);border:1px solid var(--c-line);
  backdrop-filter:blur(16px) saturate(140%);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.pager-card:hover{transform:translateY(-4px);border-color:var(--c-line-strong);box-shadow:var(--sh-card);}
.pager-card .pager-label{
  display:block;font-size:12px;letter-spacing:.08em;color:var(--c-amber);margin-bottom:8px;font-weight:600;
}
.pager-card .pager-title{font-size:15.5px;font-weight:600;color:var(--c-text);line-height:1.6;}
.pager-card:hover .pager-title{color:var(--c-brand);}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.related-card{
  display:flex;flex-direction:column;border-radius:var(--r-md);overflow:hidden;
  background:var(--glass);border:1px solid var(--c-line);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.related-card:hover{transform:translateY(-4px);border-color:var(--c-line-strong);box-shadow:var(--sh-card);}
.related-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:#0A1626;}
.related-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.related-card:hover .related-thumb img{transform:scale(1.05);}
.related-body{padding:16px 18px 18px;}
.related-body h3{font-size:15.5px;font-weight:600;line-height:1.6;color:var(--c-text);margin-bottom:8px;}
.related-card:hover .related-body h3{color:var(--c-brand);}
.related-body p{font-size:13.5px;color:var(--c-text-3);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.back-cat{
  display:inline-flex;align-items:center;gap:8px;margin-top:8px;
  font-size:14px;font-weight:600;color:var(--c-brand);
}
.back-cat i{transition:transform .22s ease;}
.back-cat:hover i{transform:translateX(-3px);}
@media (max-width:1023px){
  .related-grid{grid-template-columns:repeat(2,1fr);gap:18px;}
}
@media (max-width:639px){
  .pager-grid{grid-template-columns:1fr;}
  .related-grid{grid-template-columns:1fr;}
}

/* ---------- 侧栏 ---------- */
.article-side-inner{display:flex;flex-direction:column;gap:22px;}
@media (min-width:1024px){
  .article-side-inner{position:sticky;top:92px;}
}
.side-card{
  padding:20px 22px;border-radius:var(--r-md);
  background:var(--glass);border:1px solid var(--c-line);
  backdrop-filter:blur(16px) saturate(140%);
}
.side-title{
  display:flex;align-items:center;gap:9px;font-size:14px;font-weight:700;
  color:var(--c-text);letter-spacing:.06em;margin-bottom:14px;
}
.side-title i{color:var(--c-brand);font-size:13px;}
.toc-empty{font-size:13px;color:var(--c-text-3);}
.toc-list{display:flex;flex-direction:column;gap:2px;}
.toc-item a{
  display:block;padding:7px 12px;border-left:2px solid rgba(255,255,255,.08);
  font-size:13.5px;color:var(--c-text-3);line-height:1.6;transition:.22s ease;
}
.toc-item a:hover{color:var(--c-text);border-left-color:rgba(44,229,210,.5);background:rgba(255,255,255,.03);}
.toc-item a.is-active{color:var(--c-brand);border-left-color:var(--c-brand);background:rgba(44,229,210,.07);}
.toc-h3 a{padding-left:24px;font-size:13px;}
.side-links{display:flex;flex-direction:column;gap:10px;}
.side-link{
  display:block;padding:12px 14px;border-radius:12px;border:1px solid var(--c-line);
  background:rgba(255,255,255,.03);font-size:14px;color:var(--c-text-2);line-height:1.6;
  transition:.22s ease;
}
.side-link:hover{color:var(--c-text);border-color:var(--c-line-strong);background:rgba(44,229,210,.07);}
.side-link span{display:block;font-size:12px;color:var(--c-text-3);margin-top:4px;}
.side-cta{
  padding:24px 22px;border-radius:var(--r-md);text-align:left;
  background:linear-gradient(160deg,rgba(44,229,210,.14),rgba(200,245,71,.06));
  border:1px solid rgba(44,229,210,.28);
}
.side-cta h3{font-size:16.5px;font-weight:700;color:var(--c-text);margin-bottom:8px;}
.side-cta p{font-size:13.5px;color:var(--c-text-2);margin-bottom:16px;line-height:1.8;}
.side-cta .btn{width:100%;}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:20px;border-top:1px solid var(--c-line);
  background:linear-gradient(180deg,#0A1626 0%,#060C16 100%);
  padding:72px 0 26px;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:40px;padding-bottom:44px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:14px;color:var(--c-text-3);line-height:1.9;max-width:34ch;margin-bottom:18px;}
.footer-social{display:flex;gap:10px;}
.footer-social a{
  width:36px;height:36px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;
  color:var(--c-text-2);background:rgba(255,255,255,.04);border:1px solid var(--c-line);
  transition:.22s ease;
}
.footer-social a:hover{color:var(--c-brand);border-color:var(--c-line-strong);background:rgba(44,229,210,.1);}
.footer-col h4{font-size:14px;font-weight:700;color:var(--c-text);letter-spacing:.06em;margin-bottom:18px;}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a{font-size:14px;color:var(--c-text-3);}
.footer-col a:hover{color:var(--c-brand);}
.footer-contact li{display:flex;gap:10px;font-size:13.5px;color:var(--c-text-3);line-height:1.8;}
.footer-contact i{color:var(--c-brand);margin-top:5px;font-size:12.5px;flex-shrink:0;}
.footer-bottom{
  display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;
  padding-top:22px;border-top:1px solid var(--c-line);font-size:13px;color:var(--c-text-3);
}
@media (max-width:1023px){
  .site-footer{padding:56px 0 24px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:639px){
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* roulang page: category1 */
:root{
  --bg:#060C16;
  --bg-soft:#0A1626;
  --brand:#2CE5D2;
  --cta:#C8F547;
  --cta-ink:#06121F;
  --amber:#FF9A3D;
  --text:#E8F0FA;
  --text-2:#A7B6C9;
  --text-3:#6F8098;
  --line:rgba(255,255,255,.09);
  --line-2:rgba(44,229,210,.34);
  --glass:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  --radius-lg:18px;
  --radius-md:14px;
  --radius-sm:12px;
  --pill:999px;
  --shadow-card:0 18px 40px -20px rgba(0,0,0,.8);
  --glow-cta:0 10px 30px rgba(200,245,71,.28);
  --container:1200px;
  --pad:32px;
  --section-y:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;padding:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:17px;line-height:1.85;font-weight:400;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto;border:0}
a{color:inherit;text-decoration:none;background:transparent}
a:visited{color:inherit}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:.01em;line-height:1.32;color:var(--text)}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,textarea{font:inherit;color:inherit}
::selection{background:rgba(44,229,210,.32);color:#fff}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 var(--pad)}
.section{padding:var(--section-y) 0;position:relative}
.section-alt{background:linear-gradient(180deg,var(--bg-soft) 0%,var(--bg) 100%)}
.section-head{max-width:780px;margin-bottom:46px}
.section-head.is-center{margin-left:auto;margin-right:auto;text-align:center}
.section-head.is-left{margin-right:auto;text-align:left}
.section-head h2{font-size:32px;margin-bottom:14px}
.section-head p{color:var(--text-2);font-size:16px}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:.14em;
  color:var(--brand);margin-bottom:14px;padding:4px 13px;
  border-radius:var(--pill);border:1px solid rgba(44,229,210,.28);background:rgba(44,229,210,.08)
}

/* ============ Header / Nav ============ */
.site-header{
  position:sticky;top:0;z-index:120;
  background:rgba(6,12,22,.72);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:background .28s ease,border-color .28s ease,height .28s ease;
}
.site-header.is-scrolled{background:rgba(6,12,22,.94);border-bottom-color:rgba(44,229,210,.32)}
.header-inner{display:flex;align-items:center;gap:26px;height:68px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;transition:opacity .2s}
.brand:hover{opacity:.88}
.brand-mark{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  background:linear-gradient(140deg,rgba(44,229,210,.26),rgba(200,245,71,.14));
  border:1px solid rgba(44,229,210,.36);color:var(--brand);font-size:14px
}
.brand-text{display:inline-flex;align-items:baseline;font-size:17px;letter-spacing:.01em}
.brand-text strong{font-weight:800;color:var(--text)}
.brand-text span{font-weight:400;color:var(--text-2);font-size:16px}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:8px}
.nav-link{
  position:relative;padding:8px 13px;border-radius:10px;
  font-size:15px;color:var(--text-2);white-space:nowrap;
  transition:color .2s ease,background .2s ease
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05)}
.nav-link.is-active{color:var(--text)}
.nav-link.is-active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:1px;height:2px;border-radius:2px;
  background:var(--brand);box-shadow:0 0 12px rgba(44,229,210,.7)
}
.header-tools{display:flex;align-items:center;gap:12px;margin-left:auto}
.command-search{position:relative;width:220px}
.command-search .cs-icon{position:absolute;left:13px;top:50%;transform:translateY(-50%);color:var(--text-3);font-size:13px;pointer-events:none}
.command-search input{
  width:100%;height:40px;border-radius:var(--radius-sm);
  background:rgba(255,255,255,.05);border:1px solid var(--line);
  padding:0 62px 0 36px;font-size:14px;color:var(--text);
  outline:none;transition:border-color .2s ease,box-shadow .2s ease
}
.command-search input::placeholder{color:var(--text-3)}
.command-search input:focus{border-color:rgba(44,229,210,.6);box-shadow:0 0 0 3px rgba(44,229,210,.15)}
.command-search .cs-kbd{
  position:absolute;right:10px;top:50%;transform:translateY(-50%);
  font-family:system-ui,sans-serif;font-size:11px;letter-spacing:.08em;color:var(--text-3);
  border:1px solid var(--line);border-radius:6px;padding:1px 6px;pointer-events:none
}
.icon-btn{
  position:relative;width:40px;height:40px;display:grid;place-items:center;
  border-radius:var(--radius-sm);background:rgba(255,255,255,.05);
  border:1px solid var(--line);color:var(--text-2);
  transition:color .2s ease,border-color .2s ease,transform .2s ease
}
.icon-btn:hover{color:var(--brand);border-color:var(--line-2);transform:translateY(-1px)}
.icon-btn .tip{
  position:absolute;top:calc(100% + 9px);left:50%;transform:translateX(-50%) translateY(-4px);
  white-space:nowrap;font-size:12px;color:var(--text);background:rgba(10,22,38,.96);
  border:1px solid var(--line);border-radius:8px;padding:5px 10px;
  opacity:0;visibility:hidden;transition:.2s ease;pointer-events:none
}
.icon-btn:hover .tip{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}
.nav-toggle{
  display:none;width:40px;height:40px;place-items:center;border-radius:var(--radius-sm);
  background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--text)
}
.nav-toggle:hover{border-color:var(--line-2);color:var(--brand)}

/* ============ Buttons ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;border:1px solid transparent;white-space:nowrap;
  transition:transform .2s ease,box-shadow .25s ease,background .2s ease,border-color .2s ease,color .2s ease
}
.btn i{font-size:13px}
.btn-primary{background:var(--cta);color:var(--cta-ink);box-shadow:var(--glow-cta)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 40px rgba(200,245,71,.42)}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 18px rgba(200,245,71,.3)}
.btn-ghost{background:rgba(255,255,255,.04);border-color:rgba(44,229,210,.35);color:var(--brand)}
.btn-ghost:hover{border-color:var(--brand);box-shadow:0 0 0 3px rgba(44,229,210,.12);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;box-shadow:none;transform:none}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.text-link{
  display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:600;color:var(--brand)
}
.text-link i{transition:transform .25s ease}
.text-link:hover i{transform:translateX(3px)}

/* ============ Badges / Tags ============ */
.badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 14px;border-radius:var(--pill);
  font-size:13px;font-weight:600;letter-spacing:.02em
}
.badge-brand{background:rgba(44,229,210,.12);border:1px solid rgba(44,229,210,.34);color:var(--brand)}
.badge i{font-size:12px}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 10px;border-radius:var(--pill);
  font-size:12px;font-weight:600;letter-spacing:.02em
}
.tag-amber{background:rgba(255,154,61,.16);border:1px solid rgba(255,154,61,.4);color:var(--amber)}
.tag-brand{background:rgba(44,229,210,.12);border:1px solid rgba(44,229,210,.3);color:var(--brand)}

/* ============ Glass card ============ */
.glass-card{
  position:relative;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  backdrop-filter:blur(16px) saturate(140%);
  box-shadow:var(--shadow-card);
  overflow:hidden;
  transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease
}
.glass-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.38),transparent)
}
.glass-card:hover{transform:translateY(-4px);border-color:var(--line-2)}

/* ============ Hero banner ============ */
.cat-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line);padding:78px 0 72px}
.cat-hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;opacity:.5
}
.cat-hero-mask{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,12,22,.66) 0%,rgba(6,12,22,.86) 48%,rgba(6,12,22,.72) 100%)
}
.cat-hero-glow{
  position:absolute;inset:0;
  background:
    radial-gradient(circle at 16% 20%,rgba(44,229,210,.18),transparent 46%),
    radial-gradient(circle at 84% 80%,rgba(200,245,71,.10),transparent 50%)
}
.cat-hero-grid{
  position:absolute;inset:0;opacity:.5;
  background-image:
    linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.7),transparent 82%);
  mask-image:linear-gradient(180deg,rgba(0,0,0,.7),transparent 82%)
}
.cat-hero .container{position:relative;z-index:2}
.cat-hero h1{font-size:44px;line-height:1.24;margin:18px 0 20px;max-width:940px}
.hero-sub{max-width:700px;color:var(--text-2);font-size:17px;line-height:1.9}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-facts{display:flex;flex-wrap:wrap;gap:14px 28px;margin-top:34px}
.hero-facts li{display:flex;align-items:center;gap:9px;font-size:14px;color:var(--text-3)}
.hero-facts i{color:var(--brand);font-size:13px}

/* ============ Ability grid ============ */
.ability-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:28px;margin:0}
.ability-grid>.cell{width:auto;max-width:none;flex:none;padding:0}
.ability-stack{display:grid;gap:28px;align-content:stretch}
.feature-media{position:relative;aspect-ratio:16/9;overflow:hidden}
.feature-media img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.glass-card:hover .feature-media img{transform:scale(1.045)}
.feature-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,12,22,.1) 0%,rgba(6,12,22,.72) 100%)
}
.feature-media .tag{position:absolute;left:16px;top:16px;z-index:2}
.feature-body{padding:26px 28px 30px}
.feature-body h3{font-size:22px;margin-bottom:12px}
.feature-body p{color:var(--text-2);font-size:15.5px;line-height:1.9}
.check-list{display:grid;gap:10px;margin:20px 0 22px}
.check-list li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--text-2)}
.check-list i{color:var(--brand);font-size:13px;margin-top:6px;flex:0 0 auto}
.mini-card{display:flex;gap:16px;align-items:flex-start;padding:26px}
.mini-icon{
  flex:0 0 auto;width:44px;height:44px;border-radius:var(--radius-sm);
  display:grid;place-items:center;font-size:17px;color:var(--brand);
  background:rgba(44,229,210,.12);border:1px solid rgba(44,229,210,.28)
}
.mini-card h3{font-size:18px;margin-bottom:9px}
.mini-card p{color:var(--text-2);font-size:15px;line-height:1.88}

/* ============ Scene list ============ */
.scene-list{display:grid;grid-template-columns:repeat(2,1fr);gap:2px 44px}
.scene-item{display:flex;gap:18px;padding:26px 0;border-top:1px solid var(--line)}
.scene-num{
  flex:0 0 auto;font-family:system-ui,-apple-system,sans-serif;font-weight:800;
  font-size:15px;letter-spacing:.08em;color:var(--brand);padding-top:5px
}
.scene-item h3{font-size:18px;margin-bottom:8px}
.scene-item p{color:var(--text-2);font-size:15px;line-height:1.88}

/* ============ Steps ============ */
.steps{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:22px;margin:0}
.steps>.cell{width:auto;max-width:none;flex:none;padding:0}
.steps::before{
  content:"";position:absolute;top:26px;left:6%;right:6%;height:1px;z-index:0;
  background:linear-gradient(90deg,rgba(44,229,210,.5),rgba(200,245,71,.22) 62%,transparent)
}
.step{position:relative;z-index:1}
.step-dot{
  position:relative;z-index:2;width:52px;height:52px;border-radius:50%;
  display:grid;place-items:center;margin-bottom:18px;
  font-family:system-ui,-apple-system,sans-serif;font-weight:800;font-size:16px;
  color:var(--cta-ink);background:var(--cta);
  box-shadow:0 0 0 7px rgba(200,245,71,.10),0 10px 26px rgba(200,245,71,.26)
}
.step-card{padding:22px 22px 26px}
.step-card h3{font-size:18px;margin-bottom:10px}
.step-card p{color:var(--text-2);font-size:15px;line-height:1.88}

/* ============ Spec table ============ */
.table-wrap{
  border-radius:var(--radius-lg);border:1px solid var(--line);
  background:rgba(255,255,255,.03);overflow-x:auto;box-shadow:var(--shadow-card)
}
.spec-table{width:100%;min-width:680px;border-collapse:collapse;font-size:15px}
.spec-table caption{
  caption-side:top;text-align:left;padding:20px 24px;font-size:14.5px;
  color:var(--text-2);border-bottom:1px solid var(--line)
}
.spec-table th{
  text-align:left;padding:15px 24px;font-size:12.5px;font-weight:700;
  letter-spacing:.12em;color:var(--brand);text-transform:uppercase;
  background:rgba(44,229,210,.06);white-space:nowrap
}
.spec-table td{
  padding:16px 24px;border-top:1px solid var(--line);
  color:var(--text-2);vertical-align:top;line-height:1.8
}
.spec-table td:first-child{color:var(--text);font-weight:600;white-space:nowrap}
.spec-table tbody tr:nth-child(odd){background:rgba(255,255,255,.02)}
.spec-table tbody tr:hover{background:rgba(44,229,210,.06)}

/* ============ FAQ ============ */
.faq{display:grid;gap:14px}
.faq-item{
  position:relative;overflow:hidden;
  border-radius:var(--radius-md);border:1px solid var(--line);
  background:var(--glass);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  transition:border-color .28s ease,background .28s ease
}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:var(--brand);opacity:0;transition:opacity .28s ease
}
.faq-item.is-open{border-color:var(--line-2)}
.faq-item.is-open::before{opacity:1}
.faq-q{
  width:100%;display:flex;align-items:flex-start;gap:16px;
  padding:20px 24px;text-align:left;font-size:16px;font-weight:600;color:var(--text)
}
.faq-num{
  flex:0 0 auto;font-family:system-ui,-apple-system,sans-serif;font-weight:800;
  font-size:14px;letter-spacing:.08em;color:var(--brand);padding-top:4px
}
.faq-plus{margin-left:auto;flex:0 0 auto;position:relative;width:18px;height:18px;margin-top:5px}
.faq-plus::before,.faq-plus::after{
  content:"";position:absolute;background:var(--text-3);border-radius:2px;
  transition:transform .3s ease,background .3s ease,opacity .3s ease
}
.faq-plus::before{left:0;top:8px;width:18px;height:1.5px}
.faq-plus::after{left:8px;top:0;width:1.5px;height:18px}
.faq-item.is-open .faq-plus::before{background:var(--brand)}
.faq-item.is-open .faq-plus::after{transform:rotate(90deg);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .38s ease}
.faq-a-inner{padding:0 30px 22px 58px;color:var(--text-2);font-size:15.5px;line-height:1.92}
.faq-item.is-open .faq-a{max-height:520px}

/* ============ CTA ============ */
.cta-panel{
  position:relative;overflow:hidden;border-radius:24px;
  border:1px solid rgba(44,229,210,.24);
  background:linear-gradient(150deg,rgba(44,229,210,.13),rgba(10,22,38,.92) 58%,rgba(200,245,71,.09));
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  padding:56px 48px;text-align:center;box-shadow:var(--shadow-card)
}
.cta-panel::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(circle at 20% 10%,rgba(44,229,210,.16),transparent 46%),
             radial-gradient(circle at 84% 90%,rgba(200,245,71,.12),transparent 48%)
}
.cta-panel>*{position:relative;z-index:1}
.cta-panel h2{font-size:30px;margin-bottom:14px}
.cta-panel p{color:var(--text-2);max-width:620px;margin:0 auto;font-size:16px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:30px}

/* ============ Footer ============ */
.site-footer{
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,#070E1A 0%,#040810 100%);
  padding:72px 0 28px
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.35fr;gap:40px}
.footer-brand p{color:var(--text-2);font-size:15px;margin-top:16px;max-width:330px;line-height:1.85}
.footer-social{display:flex;gap:10px;margin-top:20px}
.footer-social a{
  width:38px;height:38px;border-radius:10px;display:grid;place-items:center;
  border:1px solid var(--line);color:var(--text-2);
  transition:color .25s ease,border-color .25s ease,transform .25s ease
}
.footer-social a:hover{color:var(--brand);border-color:var(--line-2);transform:translateY(-2px)}
.footer-col h4{font-size:15px;margin-bottom:18px}
.footer-col ul{display:grid;gap:11px}
.footer-col a{font-size:14.5px;color:var(--text-2);transition:color .2s ease}
.footer-col a:hover{color:var(--brand)}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:var(--text-2);line-height:1.75}
.footer-contact i{color:var(--brand);margin-top:5px;flex:0 0 auto;font-size:13px}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;
  font-size:13.5px;color:var(--text-3)
}

/* ============ Drawer ============ */
.drawer-mask{
  position:fixed;inset:0;z-index:150;background:rgba(3,7,13,.74);
  opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;z-index:160;
  width:min(86vw,360px);padding:22px;
  display:flex;flex-direction:column;gap:6px;overflow-y:auto;
  background:linear-gradient(180deg,#0A1626,#060C16);
  border-left:1px solid var(--line);
  transform:translateX(102%);
  transition:transform .34s cubic-bezier(.4,0,.2,1)
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
.drawer .nav-link{font-size:16px;padding:13px 14px}
.drawer .nav-link.is-active::after{left:14px;right:auto;width:18px;bottom:8px}
.drawer-foot{margin-top:auto;display:grid;gap:12px;padding-top:24px}

/* ============ Reveal ============ */
.reveal{opacity:1;transform:none;transition:opacity .6s ease,transform .6s ease}
html.js .reveal{opacity:0;transform:translateY(18px)}
html.js .reveal.is-in{opacity:1;transform:none}

/* ============ Responsive ============ */
@media (min-width:1440px){
  :root{--container:1280px}
}
@media (max-width:1199px){
  .main-nav{gap:2px}
  .nav-link{padding:8px 10px;font-size:14.5px}
  .command-search{width:180px}
}
@media (max-width:1023px){
  :root{--pad:24px;--section-y:64px}
  .main-nav{display:none}
  .command-search{display:none}
  .header-cta{display:none}
  .nav-toggle{display:grid}
  .header-inner{gap:16px;height:60px}
  .cat-hero{padding:60px 0 56px}
  .cat-hero h1{font-size:34px}
  .section-head h2{font-size:26px}
  .ability-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:repeat(2,1fr)}
  .steps::before{display:none}
  .scene-list{grid-template-columns:1fr;gap:0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
  .cta-panel{padding:46px 32px}
  .cta-panel h2{font-size:26px}
}
@media (max-width:639px){
  :root{--pad:18px;--section-y:48px}
  body{font-size:16px}
  .cat-hero{padding:48px 0 44px}
  .cat-hero h1{font-size:28px;margin:14px 0 16px}
  .hero-sub{font-size:15.5px}
  .hero-actions .btn{width:100%}
  .hero-facts{flex-direction:column;gap:10px;margin-top:26px}
  .section-head h2{font-size:22px}
  .section-head{margin-bottom:34px}
  .steps{grid-template-columns:1fr}
  .feature-body{padding:20px 20px 24px}
  .feature-body h3{font-size:19px}
  .mini-card{padding:20px}
  .mini-card h3{font-size:17px}
  .scene-item h3{font-size:17px}
  .faq-q{padding:17px 18px;font-size:15.5px}
  .faq-a-inner{padding:0 20px 20px 48px;font-size:15px}
  .cta-panel{padding:36px 20px;border-radius:18px}
  .cta-panel h2{font-size:22px}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:8px}
  .brand-text{font-size:16px}
  .brand-text span{font-size:15px}
}

/* roulang page: category3 */
:root{
  --bg:#060C16;
  --bg-soft:#0A1626;
  --bg-elev:#0C1725;
  --ink:#E8F0FA;
  --ink-2:#A7B6C9;
  --ink-3:#6F8098;
  --brand:#2CE5D2;
  --cta:#C8F547;
  --cta-ink:#06121F;
  --amber:#FF9A3D;
  --line:rgba(255,255,255,.09);
  --line-soft:rgba(255,255,255,.06);
  --line-brand:rgba(44,229,210,.34);
  --glass:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  --glass-2:linear-gradient(160deg,rgba(255,255,255,.05),rgba(255,255,255,.015));
  --r-lg:18px;
  --r-md:14px;
  --r-sm:12px;
  --shadow:0 18px 40px -20px rgba(0,0,0,.8);
  --glow:0 10px 30px rgba(200,245,71,.28);
  --glow-h:0 14px 40px rgba(200,245,71,.42);
  --sec:96px;
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font);
  font-size:17px;
  line-height:1.85;
  font-weight:400;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--brand);text-decoration:none;background:transparent;}
a:hover{color:#7cf3e6;}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;background:none;border:0;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.01em;line-height:1.35;}
h1{font-size:44px;font-weight:800;}
h2{font-size:32px;font-weight:800;}
h3{font-size:22px;}
p{margin:0 0 1.1em;color:var(--ink-2);}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
::selection{background:rgba(44,229,210,.3);color:#fff;}

/* ---------- 布局容器 ---------- */
.grid-container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:32px;
  padding-right:32px;
}
.grid-x{display:flex;flex-wrap:wrap;}
.grid-x.grid-margin-x{margin-left:-16px;margin-right:-16px;}
.grid-x.grid-margin-x>.cell{padding-left:16px;padding-right:16px;}
.cell{min-width:0;}
.small-12{width:100%;}
.section{padding:var(--sec) 0;position:relative;}
.section--tight{padding:64px 0;}
.divider-line{
  height:1px;
  border:0;
  margin:0;
  background:linear-gradient(90deg,transparent,rgba(44,229,210,.35),transparent);
}

/* ---------- 通用元素 ---------- */
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-family:var(--mono);
  font-size:13px;
  letter-spacing:.08em;
  text-transform:uppercase;
  color:var(--brand);
  font-weight:600;
}
.eyebrow::before{
  content:"";
  width:18px;height:1px;background:var(--brand);opacity:.8;
}
.section-head{margin-bottom:44px;}
.section-head--center{text-align:center;max-width:760px;margin-left:auto;margin-right:auto;}
.section-head--center .eyebrow::before{display:none;}
.section-head h2{margin:14px 0 12px;}
.section-head p{font-size:16px;max-width:62ch;}
.section-head--center p{margin-left:auto;margin-right:auto;}
.section-head--between{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
}

.card{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  position:relative;
  overflow:hidden;
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.card::after{
  content:"";
  position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.4),transparent);
  opacity:.6;
}
.card--hover:hover{transform:translateY(-4px);border-color:var(--line-brand);box-shadow:0 26px 50px -24px rgba(0,0,0,.9);}
.card--hover:hover h3{color:var(--brand);}
.card-body{padding:26px 24px;}
.card h3{font-size:20px;margin-bottom:10px;transition:color .25s ease;}
.card p{font-size:15.5px;line-height:1.8;}

.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;
  border-radius:999px;
  font-size:12.5px;
  letter-spacing:.04em;
  border:1px solid var(--line-brand);
  color:var(--brand);
  background:rgba(44,229,210,.08);
  white-space:nowrap;
}
.tag--amber{border-color:rgba(255,154,61,.4);color:var(--amber);background:rgba(255,154,61,.1);}
.tag--plain{border-color:var(--line);color:var(--ink-2);background:rgba(255,255,255,.03);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  height:46px;padding:0 22px;
  border-radius:var(--r-sm);
  font-size:15.5px;font-weight:600;
  border:1px solid transparent;
  transition:transform .2s ease,box-shadow .25s ease,background .25s ease,color .25s ease,border-color .25s ease;
  white-space:nowrap;
}
.btn-cta{background:var(--cta);color:var(--cta-ink);box-shadow:var(--glow);}
.btn-cta:hover{background:#d6ff62;color:var(--cta-ink);transform:translateY(-2px);box-shadow:var(--glow-h);}
.btn-cta:active{transform:translateY(0);box-shadow:0 6px 18px rgba(200,245,71,.3);}
.btn-ghost{
  background:rgba(255,255,255,.04);color:var(--brand);border-color:var(--line-brand);
  backdrop-filter:blur(10px);
}
.btn-ghost:hover{color:#8ff7ec;border-color:rgba(44,229,210,.7);box-shadow:0 0 0 3px rgba(44,229,210,.12);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-link{
  display:inline-flex;align-items:center;gap:8px;
  color:var(--brand);font-weight:600;font-size:15.5px;
}
.btn-link i{transition:transform .25s ease;}
.btn-link:hover i{transform:translateX(3px);}
.btn-sm{height:40px;padding:0 18px;font-size:14.5px;}
.btn:disabled,.btn[disabled]{opacity:.45;cursor:not-allowed;box-shadow:none;transform:none;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(6,12,22,.72);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid transparent;
  transition:background .3s ease,border-color .3s ease;
}
.site-header.is-scrolled{
  background:rgba(6,12,22,.94);
  border-bottom-color:rgba(44,229,210,.26);
}
.header-inner{
  display:flex;align-items:center;gap:20px;
  height:68px;
}
.brand{display:inline-flex;align-items:center;gap:11px;color:var(--ink);flex:0 0 auto;}
.brand-mark{
  width:34px;height:34px;border-radius:11px;
  display:grid;place-items:center;
  background:linear-gradient(150deg,var(--brand),#0f8f9a);
  color:#04141c;font-size:15px;
  box-shadow:0 8px 22px -10px rgba(44,229,210,.9);
}
.brand-text{display:flex;flex-direction:column;line-height:1.12;}
.brand-text strong{font-weight:800;font-size:16.5px;letter-spacing:.01em;}
.brand-text span{font-weight:400;font-size:12.5px;color:var(--ink-2);letter-spacing:.06em;}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:6px;}
.nav-link{
  position:relative;
  padding:9px 14px;border-radius:10px;
  color:var(--ink-2);font-size:15px;font-weight:500;
  transition:color .2s ease,background .2s ease;
}
.nav-link:hover{color:var(--ink);background:rgba(255,255,255,.05);}
.nav-link.is-active{color:var(--ink);font-weight:600;}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:1px;height:2px;border-radius:2px;
  background:var(--brand);box-shadow:0 0 12px rgba(44,229,210,.85);
}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:10px;}
.command-search{
  display:flex;align-items:center;gap:9px;
  width:220px;height:38px;padding:0 12px;
  border-radius:var(--r-sm);
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  color:var(--ink-3);
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.command-search i{font-size:13px;color:var(--ink-3);}
.command-search input{
  flex:1;min-width:0;border:0;background:none;outline:none;
  font-size:14px;color:var(--ink);
}
.command-search input::placeholder{color:var(--ink-3);}
.command-search kbd{
  font-family:var(--mono);font-size:11px;color:var(--ink-3);
  border:1px solid var(--line);border-radius:6px;padding:1px 5px;
}
.command-search:focus-within{
  border-color:var(--brand);
  background:rgba(44,229,210,.06);
  box-shadow:0 0 0 3px rgba(44,229,210,.16);
}
.icon-btn{
  position:relative;
  width:38px;height:38px;border-radius:var(--r-sm);
  display:grid;place-items:center;
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
  color:var(--ink-2);
  transition:color .2s ease,border-color .2s ease,background .2s ease;
}
.icon-btn:hover{color:var(--brand);border-color:var(--line-brand);background:rgba(44,229,210,.07);}
.icon-btn::after{
  content:attr(data-tooltip);
  position:absolute;top:calc(100% + 8px);right:0;
  background:#0d1a2a;color:var(--ink);font-size:12.5px;
  padding:5px 10px;border-radius:8px;border:1px solid var(--line);
  white-space:nowrap;opacity:0;pointer-events:none;transform:translateY(-4px);
  transition:opacity .2s ease,transform .2s ease;
}
.icon-btn:hover::after{opacity:1;transform:translateY(0);}
.nav-toggle{
  display:none;
  width:40px;height:40px;border-radius:var(--r-sm);
  border:1px solid var(--line);background:rgba(255,255,255,.04);
  color:var(--ink);place-items:center;
}
.nav-toggle:hover{border-color:var(--line-brand);color:var(--brand);}

/* 移动抽屉 */
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;
  width:86%;max-width:360px;
  background:linear-gradient(180deg,#0A1626,#060C16);
  border-left:1px solid var(--line);
  padding:22px 20px 28px;
  display:flex;flex-direction:column;gap:22px;
  transform:translateX(102%);
  transition:transform .32s cubic-bezier(.4,.2,.2,1);
  z-index:90;
  overflow-y:auto;
}
.mobile-drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;}
.drawer-close{
  width:38px;height:38px;border-radius:var(--r-sm);
  border:1px solid var(--line);color:var(--ink-2);
  display:grid;place-items:center;
}
.drawer-close:hover{color:var(--brand);border-color:var(--line-brand);}
.drawer-nav{display:flex;flex-direction:column;gap:6px;}
.drawer-nav a{
  padding:13px 14px;border-radius:var(--r-sm);
  color:var(--ink-2);font-size:16px;
  border:1px solid transparent;
}
.drawer-nav a:hover{background:rgba(255,255,255,.05);color:var(--ink);}
.drawer-nav a.is-active{
  color:var(--ink);border-color:var(--line-brand);
  background:rgba(44,229,210,.08);font-weight:600;
}
.drawer-foot{margin-top:auto;display:flex;flex-direction:column;gap:12px;}
.drawer-foot .command-search{width:100%;}
.drawer-mask{
  position:fixed;inset:0;background:rgba(3,7,13,.66);
  opacity:0;pointer-events:none;transition:opacity .3s ease;z-index:85;
  backdrop-filter:blur(2px);
}
.drawer-mask.is-open{opacity:1;pointer-events:auto;}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;
  padding:56px 0 64px;
  background:
    radial-gradient(900px 380px at 12% -10%,rgba(44,229,210,.14),transparent 62%),
    radial-gradient(700px 320px at 88% 0%,rgba(200,245,71,.09),transparent 60%),
    linear-gradient(180deg,#0A1626 0%,#060C16 100%);
  overflow:hidden;
}
.page-hero::before{
  content:"";
  position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.055) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.055) 1px,transparent 1px);
  background-size:64px 64px;
  opacity:.35;
  mask-image:radial-gradient(700px 300px at 30% 0%,#000,transparent 78%);
  -webkit-mask-image:radial-gradient(700px 300px at 30% 0%,#000,transparent 78%);
  pointer-events:none;
}
.page-hero .grid-container{position:relative;z-index:2;}
.breadcrumb{
  display:flex;align-items:center;gap:9px;
  font-size:13.5px;color:var(--ink-3);margin-bottom:26px;
}
.breadcrumb a{color:var(--ink-2);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:rgba(255,255,255,.22);}
.breadcrumb .current{color:var(--brand);}
.hero-narrow{max-width:820px;}
.hero-narrow h1{margin:16px 0 18px;}
.hero-narrow .lead{font-size:17.5px;color:var(--ink-2);max-width:70ch;}
.filter-bar{
  display:flex;flex-wrap:wrap;gap:10px;
  margin-top:32px;padding-top:26px;
  border-top:1px solid var(--line-soft);
}
.chip{
  display:inline-flex;align-items:center;gap:7px;
  height:36px;padding:0 16px;border-radius:999px;
  font-size:14px;color:var(--ink-2);
  border:1px solid var(--line);
  background:rgba(255,255,255,.035);
  transition:color .2s ease,border-color .2s ease,background .2s ease;
}
.chip:hover{color:var(--ink);border-color:var(--line-brand);}
.chip.is-on{
  color:#062018;background:var(--brand);border-color:var(--brand);font-weight:600;
  box-shadow:0 8px 24px -12px rgba(44,229,210,.9);
}
.chip-num{
  font-family:var(--mono);font-size:12px;opacity:.75;
}
.hero-stats{
  display:flex;flex-wrap:wrap;gap:36px;
  margin-top:34px;
}
.stat-mini{min-width:150px;}
.stat-mini b{
  display:block;
  font-family:var(--mono);
  font-size:26px;font-weight:700;color:var(--cta);
  letter-spacing:.02em;
  text-shadow:0 0 22px rgba(200,245,71,.35);
}
.stat-mini span{font-size:14px;color:var(--ink-3);}

/* ---------- 问题分类卡 ---------- */
.qtype{
  padding:26px 22px 24px;
  height:100%;
  display:flex;flex-direction:column;
}
.qtype .qt-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.qt-icon{
  width:42px;height:42px;border-radius:13px;
  display:grid;place-items:center;
  background:rgba(44,229,210,.1);
  border:1px solid rgba(44,229,210,.24);
  color:var(--brand);font-size:17px;
}
.qtype h3{font-size:19px;margin-bottom:9px;}
.qtype p{font-size:15px;line-height:1.78;margin-bottom:18px;}
.qtype .qt-foot{margin-top:auto;font-size:13.5px;color:var(--ink-3);display:flex;align-items:center;gap:7px;}
.qtype .qt-foot i{color:var(--brand);font-size:12px;}

/* ---------- FAQ 手风琴 ---------- */
.faq-wrap{max-width:960px;margin:0 auto;}
.faq-list{display:grid;gap:12px;}
.faq-item{
  position:relative;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  overflow:hidden;
  transition:border-color .28s ease,background .28s ease;
}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:var(--brand);opacity:0;transition:opacity .28s ease;
}
.faq-item:hover{border-color:rgba(255,255,255,.16);}
.faq-item.is-open{border-color:var(--line-brand);background:linear-gradient(160deg,rgba(44,229,210,.07),rgba(255,255,255,.02));}
.faq-item.is-open::before{opacity:1;}
.faq-q{
  width:100%;
  display:flex;align-items:flex-start;gap:16px;
  padding:20px 22px;
  text-align:left;
  color:var(--ink);
  font-size:17px;font-weight:600;line-height:1.6;
}
.faq-num{
  font-family:var(--mono);font-size:13px;letter-spacing:.08em;
  color:var(--brand);padding-top:4px;flex:0 0 auto;
}
.faq-text{flex:1;min-width:0;}
.faq-icon{
  position:relative;flex:0 0 auto;
  width:16px;height:16px;margin-top:7px;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--ink-2);
  border-radius:2px;transition:transform .3s ease,background .3s ease,opacity .3s ease;
}
.faq-icon::before{left:0;top:7px;width:16px;height:2px;}
.faq-icon::after{left:7px;top:0;width:2px;height:16px;}
.faq-item.is-open .faq-icon::before{background:var(--brand);}
.faq-item.is-open .faq-icon::after{transform:rotate(90deg);opacity:0;}
.faq-item.is-open .faq-q{color:#fff;}
.faq-a{
  display:none;
  padding:0 22px 22px 56px;
  color:var(--ink-2);font-size:15.5px;line-height:1.9;
}
.faq-item.is-open .faq-a{display:block;animation:fadeUp .32s ease;}
.faq-a strong{color:var(--ink);font-weight:600;}

@keyframes fadeUp{from{opacity:0;transform:translateY(-6px);}to{opacity:1;transform:translateY(0);}}

/* ---------- 处理流程时间线 ---------- */
.flow-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:start;}
.timeline{position:relative;padding-left:36px;}
.timeline::before{
  content:"";position:absolute;left:9px;top:8px;bottom:10px;width:2px;
  background:linear-gradient(180deg,rgba(44,229,210,.75),rgba(44,229,210,.06));
}
.tl-item{position:relative;padding-bottom:34px;}
.tl-item:last-child{padding-bottom:0;}
.tl-dot{
  position:absolute;left:-36px;top:3px;
  width:20px;height:20px;border-radius:50%;
  background:var(--bg);
  border:2px solid var(--brand);
  box-shadow:0 0 18px rgba(44,229,210,.6);
}
.tl-dot::after{
  content:"";position:absolute;left:5px;top:5px;width:6px;height:6px;border-radius:50%;
  background:var(--brand);
}
.tl-item h3{font-size:19px;margin-bottom:8px;}
.tl-item p{font-size:15.5px;margin-bottom:8px;}
.tl-meta{font-size:13px;color:var(--ink-3);display:flex;align-items:center;gap:7px;}
.tl-meta i{color:var(--amber);font-size:12px;}
.flow-side .card-body{padding:28px 26px;}
.flow-side h3{font-size:20px;margin-bottom:14px;}
.check-list{display:grid;gap:12px;margin-top:6px;}
.check-list li{
  display:flex;gap:11px;align-items:flex-start;
  font-size:15px;color:var(--ink-2);line-height:1.75;
}
.check-list i{color:var(--brand);font-size:14px;padding-top:4px;flex:0 0 auto;}

/* ---------- 支持入口 ---------- */
.support-card{height:100%;display:flex;flex-direction:column;}
.support-media{
  position:relative;
  aspect-ratio:16/9;
  overflow:hidden;
  background:linear-gradient(160deg,#0d2033,#08131f);
}
.support-media img{width:100%;height:100%;object-fit:cover;}
.support-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,12,22,.05) 40%,rgba(6,12,22,.78) 100%);
}
.support-badge{
  position:absolute;left:16px;top:16px;z-index:2;
  padding:4px 12px;border-radius:999px;font-size:12.5px;
  background:rgba(6,12,22,.72);border:1px solid var(--line-brand);
  color:var(--brand);backdrop-filter:blur(8px);
}
.support-card .card-body{padding:26px 24px;display:flex;flex-direction:column;flex:1;}
.support-card p{font-size:15.5px;margin-bottom:18px;}
.support-card .btn{margin-top:auto;align-self:flex-start;}

/* ---------- 末尾 CTA ---------- */
.cta-panel{
  position:relative;
  border-radius:24px;
  padding:56px 48px;
  text-align:center;
  border:1px solid var(--line);
  background:
    radial-gradient(600px 240px at 20% 0%,rgba(44,229,210,.16),transparent 65%),
    radial-gradient(520px 220px at 85% 100%,rgba(200,245,71,.12),transparent 65%),
    linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  overflow:hidden;
  box-shadow:var(--shadow);
}
.cta-panel h2{margin-bottom:14px;}
.cta-panel p{max-width:60ch;margin:0 auto 30px;font-size:16.5px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;align-items:center;}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:var(--sec);
  border-top:1px solid var(--line-soft);
  background:linear-gradient(180deg,#08111d,#060C16);
  padding:64px 0 28px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.35fr;
  gap:44px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:14.5px;line-height:1.8;max-width:34ch;}
.footer-social{display:flex;gap:10px;margin-top:20px;}
.footer-social a{
  width:36px;height:36px;border-radius:11px;
  display:grid;place-items:center;
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
  color:var(--ink-2);
  transition:color .2s ease,border-color .2s ease,transform .2s ease;
}
.footer-social a:hover{color:var(--brand);border-color:var(--line-brand);transform:translateY(-2px);}
.footer-col h4{
  font-size:15px;font-weight:700;margin-bottom:16px;color:var(--ink);
  letter-spacing:.02em;
}
.footer-col ul{display:grid;gap:11px;}
.footer-col a{color:var(--ink-2);font-size:14.5px;}
.footer-col a:hover{color:var(--brand);}
.footer-contact li{
  display:flex;gap:9px;align-items:flex-start;
  color:var(--ink-2);font-size:14px;line-height:1.75;
}
.footer-contact i{color:var(--brand);font-size:13px;padding-top:5px;flex:0 0 auto;}
.footer-bottom{
  margin-top:48px;padding-top:22px;
  border-top:1px solid var(--line-soft);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13.5px;color:var(--ink-3);
}

/* ---------- 响应式 ---------- */
@media (min-width:1440px){
  .grid-container{max-width:1280px;}
}
@media (max-width:1023px){
  :root{--sec:64px;}
  .grid-container{padding-left:24px;padding-right:24px;}
  h1{font-size:34px;}
  h2{font-size:26px;}
  h3{font-size:19px;}
  .main-nav{display:none;}
  .command-search{display:none;}
  .header-actions .icon-btn{display:none;}
  .nav-toggle{display:grid;}
  .header-inner{height:60px;gap:12px;}
  .flow-grid{grid-template-columns:1fr;gap:40px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
  .cta-panel{padding:44px 28px;}
  .hero-stats{gap:26px;}
}
@media (max-width:767px){
  :root{--sec:48px;}
  .grid-container{padding-left:18px;padding-right:18px;}
  body{font-size:16px;}
  h1{font-size:28px;}
  h2{font-size:22px;}
  h3{font-size:17px;}
  .grid-x.grid-margin-x{margin-left:-8px;margin-right:-8px;}
  .grid-x.grid-margin-x>.cell{padding-left:8px;padding-right:8px;}
  .page-hero{padding:36px 0 44px;}
  .hero-narrow .lead{font-size:16px;}
  .section-head--between{flex-direction:column;align-items:flex-start;}
  .faq-q{font-size:16px;padding:18px 18px;gap:12px;}
  .faq-a{padding:0 18px 20px 46px;font-size:15px;}
  .cta-panel{padding:36px 20px;border-radius:20px;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer-bottom{flex-direction:column;}
  .stat-mini b{font-size:22px;}
  .timeline{padding-left:30px;}
  .tl-dot{left:-30px;}
}
@media (max-width:520px){
  .grid-x>.cell{width:100%;padding-left:0;padding-right:0;}
  .grid-x.grid-margin-x{margin-left:0;margin-right:0;}
  .grid-x.grid-margin-x>.cell{padding-left:0;padding-right:0;}
  .grid-x{gap:16px;}
}

/* roulang page: category2 */
:root{
  --bg:#060C16;
  --bg-soft:#0A1626;
  --brand:#2CE5D2;
  --cta:#C8F547;
  --cta-ink:#06121F;
  --amber:#FF9A3D;
  --text:#E8F0FA;
  --text-2:#A7B6C9;
  --text-3:#6F8098;
  --line:rgba(255,255,255,.09);
  --line-strong:rgba(44,229,210,.34);
  --glass:linear-gradient(160deg, rgba(255,255,255,.07), rgba(255,255,255,.02));
  --r-lg:18px;
  --r-sm:14px;
  --r-btn:12px;
  --shadow:0 18px 40px -20px rgba(0,0,0,.8);
  --glow-cta:0 10px 30px rgba(200,245,71,.28);
  --glow-cta-hover:0 14px 40px rgba(200,245,71,.42);
  --font: "PingFang SC","Hiragino Sans GB","Microsoft YaHei", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; -webkit-text-size-adjust:100%; }
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  font-weight:400;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{ max-width:100%; display:block; height:auto; }
a{ color:var(--brand); text-decoration:none; transition:color .22s ease, border-color .22s ease, background-color .22s ease; }
a:hover{ color:#7CF3E6; }
button{ font-family:inherit; }
h1,h2,h3,h4,h5{
  margin:0 0 16px;
  color:#fff;
  font-weight:700;
  letter-spacing:.01em;
  line-height:1.3;
}
h1{ font-size:44px; font-weight:800; }
h2{ font-size:32px; }
h3{ font-size:22px; }
h4{ font-size:17px; }
p{ margin:0 0 1.2em; color:var(--text-2); }
ul,ol{ margin:0; padding:0; list-style:none; }
:focus-visible{
  outline:none;
  box-shadow:0 0 0 2px var(--bg), 0 0 0 4px rgba(44,229,210,.65);
  border-radius:8px;
}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 32px;
}
@media (min-width:1440px){ .container{ max-width:1280px; } }
@media (max-width:1023px){ .container{ padding:0 24px; } }
@media (max-width:639px){ .container{ padding:0 18px; } }

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:9px;
  height:46px;
  padding:0 24px;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  letter-spacing:.01em;
  cursor:pointer;
  white-space:nowrap;
  transition:transform .22s ease, box-shadow .22s ease, border-color .22s ease, background-color .22s ease, color .22s ease;
}
.btn:active{ transform:translateY(0) scale(.99); }
.btn-primary{
  background:var(--cta);
  color:var(--cta-ink);
  box-shadow:var(--glow-cta);
}
.btn-primary:hover{
  color:var(--cta-ink);
  transform:translateY(-2px);
  box-shadow:var(--glow-cta-hover);
}
.btn-primary:active{ box-shadow:0 6px 18px rgba(200,245,71,.24); }
.btn-ghost{
  background:rgba(255,255,255,.04);
  border-color:rgba(44,229,210,.35);
  color:var(--brand);
}
.btn-ghost:hover{
  color:#8CF6EA;
  border-color:rgba(44,229,210,.72);
  box-shadow:0 0 26px rgba(44,229,210,.22);
  transform:translateY(-2px);
}
.btn-sm{ height:38px; padding:0 16px; font-size:14px; border-radius:10px; }
.btn-block{ width:100%; }
.btn[disabled]{ opacity:.45; cursor:not-allowed; transform:none; box-shadow:none; }
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  font-weight:600;
  color:var(--brand);
}
.link-arrow i{ transition:transform .22s ease; }
.link-arrow:hover i{ transform:translateX(3px); }

.eyebrow{
  display:inline-block;
  font-size:12px;
  font-weight:700;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--brand);
  margin-bottom:14px;
}
.badge-pill{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:999px;
  border:1px solid rgba(44,229,210,.34);
  background:rgba(44,229,210,.08);
  color:var(--brand);
  font-size:13px;
  font-weight:600;
  letter-spacing:.04em;
}
.badge-pill .dot{
  width:6px;height:6px;border-radius:50%;background:var(--cta);
  box-shadow:0 0 10px rgba(200,245,71,.9);
}
.badge-amber{
  border-color:rgba(255,154,61,.4);
  background:rgba(255,154,61,.1);
  color:var(--amber);
}

/* ============ 导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(6,12,22,.78);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid transparent;
  transition:background-color .3s ease, border-color .3s ease, box-shadow .3s ease;
}
.site-header.is-scrolled{
  background:rgba(6,12,22,.95);
  border-bottom-color:var(--line-strong);
  box-shadow:0 14px 40px -26px rgba(0,0,0,.95);
}
.nav-inner{
  display:flex;
  align-items:center;
  gap:24px;
  height:68px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
  color:#fff;
}
.brand:hover{ color:#fff; }
.brand-mark{
  width:34px;height:34px;
  display:grid;place-items:center;
  border-radius:10px;
  background:linear-gradient(140deg, rgba(44,229,210,.24), rgba(200,245,71,.12));
  border:1px solid rgba(44,229,210,.38);
  color:var(--brand);
  font-size:15px;
  box-shadow:0 0 22px rgba(44,229,210,.18) inset;
}
.brand-text{
  display:inline-flex;
  align-items:baseline;
  font-size:17px;
  letter-spacing:.01em;
  white-space:nowrap;
}
.brand-text strong{ font-weight:800; color:#fff; }
.brand-text span{ font-weight:400; color:var(--text-2); }
.main-nav{
  display:flex;
  align-items:center;
  gap:26px;
  margin-left:8px;
}
.nav-link{
  position:relative;
  padding:6px 0;
  font-size:15px;
  color:var(--text-2);
  white-space:nowrap;
}
.nav-link::after{
  content:'';
  position:absolute;
  left:0;right:0;bottom:-6px;
  height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--brand),var(--cta));
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .25s ease;
}
.nav-link:hover{ color:#fff; }
.nav-link:hover::after{ transform:scaleX(1); }
.nav-link.is-active{ color:#fff; font-weight:600; }
.nav-link.is-active::after{ transform:scaleX(1); }
.nav-actions{
  display:flex;
  align-items:center;
  gap:12px;
  margin-left:auto;
}
.nav-search{
  display:flex;
  align-items:center;
  gap:9px;
  width:220px;
  height:38px;
  padding:0 12px;
  border-radius:var(--r-btn);
  border:1px solid var(--line);
  background:rgba(255,255,255,.05);
  color:var(--text-3);
  transition:border-color .22s ease, box-shadow .22s ease, background-color .22s ease;
}
.nav-search i{ font-size:13px; }
.nav-search input{
  flex:1;
  min-width:0;
  height:100%;
  border:0;
  background:transparent;
  color:var(--text);
  font-size:14px;
  font-family:inherit;
}
.nav-search input::placeholder{ color:var(--text-3); }
.nav-search input:focus{ outline:none; }
.nav-search:focus-within{
  border-color:rgba(44,229,210,.6);
  background:rgba(44,229,210,.06);
  box-shadow:0 0 0 3px rgba(44,229,210,.14);
}
.nav-search kbd{
  font-family:system-ui, sans-serif;
  font-size:11px;
  letter-spacing:.06em;
  color:var(--text-3);
  border:1px solid var(--line);
  border-radius:6px;
  padding:1px 6px;
  background:rgba(255,255,255,.04);
}
.icon-btn{
  position:relative;
  width:38px;height:38px;
  display:grid;place-items:center;
  border-radius:var(--r-btn);
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  color:var(--text-2);
  cursor:pointer;
  transition:color .22s ease, border-color .22s ease, background-color .22s ease;
}
.icon-btn:hover{
  color:var(--brand);
  border-color:rgba(44,229,210,.5);
  background:rgba(44,229,210,.07);
}
.icon-btn::after{
  content:attr(data-tip);
  position:absolute;
  top:calc(100% + 10px);
  left:50%;
  transform:translateX(-50%) translateY(-4px);
  padding:4px 10px;
  border-radius:8px;
  background:rgba(10,22,38,.96);
  border:1px solid var(--line);
  color:var(--text);
  font-size:12px;
  white-space:nowrap;
  opacity:0;
  pointer-events:none;
  transition:opacity .2s ease, transform .2s ease;
}
.icon-btn:hover::after{ opacity:1; transform:translateX(-50%) translateY(0); }
.nav-toggle{
  display:none;
  width:38px;height:38px;
  align-items:center;
  justify-content:center;
  border-radius:var(--r-btn);
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  color:var(--text);
  cursor:pointer;
}
@media (max-width:1023px){
  .nav-inner{ height:60px; gap:16px; }
  .main-nav{ display:none; }
  .nav-search{ display:none; }
  .nav-cta{ display:none; }
  .nav-toggle{ display:inline-flex; }
}

/* 移动抽屉 */
.drawer{
  position:fixed;
  inset:0;
  z-index:90;
  visibility:hidden;
  opacity:0;
  transition:opacity .25s ease, visibility .25s ease;
}
.drawer.is-open{ visibility:visible; opacity:1; }
.drawer-scrim{
  position:absolute;
  inset:0;
  background:rgba(3,8,16,.7);
  backdrop-filter:blur(4px);
}
.drawer-panel{
  position:absolute;
  top:0;right:0;
  width:min(86vw,360px);
  height:100%;
  padding:22px 22px 28px;
  background:linear-gradient(180deg,#0A1626,#060C16);
  border-left:1px solid var(--line);
  display:flex;
  flex-direction:column;
  gap:22px;
  transform:translateX(100%);
  transition:transform .3s cubic-bezier(.4,0,.2,1);
  overflow-y:auto;
}
.drawer.is-open .drawer-panel{ transform:translateX(0); }
.drawer-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
}
.drawer-nav{
  display:flex;
  flex-direction:column;
}
.drawer-nav a{
  padding:15px 4px;
  border-bottom:1px solid var(--line);
  color:var(--text-2);
  font-size:16px;
}
.drawer-nav a:hover,.drawer-nav a.is-active{ color:#fff; }
.drawer-nav a.is-active{ border-left:2px solid var(--brand); padding-left:12px; }
.drawer-foot{
  margin-top:auto;
  display:flex;
  flex-direction:column;
  gap:14px;
}
.nav-search-wide{ width:100%; }
@media (min-width:1024px){ .drawer{ display:none; } }

/* ============ Hero ============ */
.page-hero{
  position:relative;
  padding:64px 0 84px;
  overflow:hidden;
  background-image:linear-gradient(180deg, rgba(6,12,22,.86) 0%, rgba(6,12,22,.95) 70%, var(--bg) 100%), url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center;
}
.page-hero::before{
  content:'';
  position:absolute;
  top:-140px;left:-80px;
  width:560px;height:560px;
  border-radius:50%;
  background:radial-gradient(circle, rgba(44,229,210,.16), transparent 68%);
  pointer-events:none;
}
.page-hero::after{
  content:'';
  position:absolute;
  inset:0;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.045) 1px, transparent 1px);
  background-size:64px 64px;
  mask-image:linear-gradient(180deg, rgba(0,0,0,.7), transparent 78%);
  -webkit-mask-image:linear-gradient(180deg, rgba(0,0,0,.7), transparent 78%);
  pointer-events:none;
}
.page-hero .container{ position:relative; z-index:2; }
.crumbs{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:13px;
  color:var(--text-3);
  margin-bottom:26px;
  flex-wrap:wrap;
}
.crumbs a{ color:var(--text-3); }
.crumbs a:hover{ color:var(--brand); }
.crumbs .sep{ color:rgba(255,255,255,.18); }
.crumbs .current{ color:var(--text-2); }
.hero-title{
  max-width:900px;
  margin:18px 0 20px;
  font-size:44px;
  font-weight:800;
  line-height:1.24;
}
.hero-title em{
  font-style:normal;
  color:var(--brand);
  text-shadow:0 0 32px rgba(44,229,210,.35);
}
.hero-lead{
  max-width:760px;
  font-size:17px;
  color:var(--text-2);
  margin-bottom:32px;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-bottom:38px;
}
.trust-row{
  display:flex;
  flex-wrap:wrap;
  gap:14px 32px;
  padding-top:26px;
  border-top:1px solid var(--line);
}
.trust-row li{
  display:inline-flex;
  align-items:center;
  gap:9px;
  font-size:14px;
  color:var(--text-2);
}
.trust-row i{ color:var(--brand); font-size:14px; }
@media (max-width:1023px){
  .page-hero{ padding:48px 0 64px; }
  .hero-title{ font-size:34px; }
  .hero-lead{ font-size:16px; }
}
@media (max-width:639px){
  .page-hero{ padding:36px 0 48px; }
  .hero-title{ font-size:28px; }
  .hero-actions .btn{ flex:1 1 100%; }
}

/* ============ 区块通用 ============ */
.section{ padding:96px 0; position:relative; }
.section-tight{ padding:64px 0; }
.section-alt{
  background:linear-gradient(180deg, var(--bg-soft), var(--bg));
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.section-head{ margin-bottom:48px; }
.section-head h2{ margin-bottom:12px; }
.section-head p{ max-width:720px; margin:0; font-size:16px; }
.head-row{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  flex-wrap:wrap;
}
@media (max-width:1023px){ .section{ padding:64px 0; } .section-head{ margin-bottom:34px; } }
@media (max-width:639px){ .section{ padding:48px 0; } }

/* ============ 双栏文档布局 ============ */
.doc-layout{ align-items:flex-start; }
.anchor-card{
  position:sticky;
  top:96px;
  padding:24px;
  border-radius:var(--r-lg);
  border:1px solid var(--line);
  background:var(--glass);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  box-shadow:var(--shadow);
}
.anchor-card h3{
  font-size:15px;
  letter-spacing:.08em;
  text-transform:uppercase;
  color:var(--brand);
  margin-bottom:6px;
}
.anchor-card .anchor-sub{
  font-size:13px;
  color:var(--text-3);
  margin-bottom:18px;
}
.anchor-link{
  display:flex;
  gap:12px;
  padding:13px 0;
  border-bottom:1px dashed rgba(255,255,255,.08);
  color:var(--text-2);
  font-size:15px;
  line-height:1.6;
}
.anchor-link:last-of-type{ border-bottom:0; }
.anchor-link .idx{
  flex:0 0 22px;
  font-family:system-ui, sans-serif;
  font-size:12px;
  letter-spacing:.08em;
  color:var(--brand);
  padding-top:3px;
}
.anchor-link:hover{ color:#fff; }
.anchor-link:hover .idx{ color:var(--cta); }
.anchor-help{
  margin-top:22px;
  padding:18px;
  border-radius:var(--r-sm);
  border:1px solid rgba(255,154,61,.32);
  background:rgba(255,154,61,.07);
}
.anchor-help strong{ display:block; color:#fff; font-size:15px; margin-bottom:6px; }
.anchor-help p{ font-size:13px; margin:0 0 12px; color:var(--text-2); }
.anchor-help a{ font-size:13px; font-weight:600; color:var(--amber); }
.anchor-help a:hover{ color:#FFC28A; }

.doc-section{
  margin-bottom:56px;
  scroll-margin-top:100px;
}
.doc-section:last-child{ margin-bottom:0; }
.doc-section h2{
  font-size:30px;
  margin-bottom:16px;
}
.doc-section h3{
  font-size:19px;
  margin:26px 0 12px;
}
.doc-section p{ font-size:17px; line-height:1.95; }
.doc-figure{
  margin:26px 0 0;
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--bg-soft);
}
.doc-figure img{
  width:100%;
  aspect-ratio:16 / 9;
  object-fit:cover;
  transition:transform .5s ease;
}
.doc-figure:hover img{ transform:scale(1.02); }
.doc-figure figcaption{
  padding:12px 18px;
  font-size:13px;
  color:var(--text-3);
  border-top:1px solid var(--line);
  background:rgba(255,255,255,.02);
}
.point-list{ margin:20px 0 0; display:flex; flex-direction:column; gap:12px; }
.point-list li{
  display:flex;
  gap:12px;
  font-size:16px;
  color:var(--text-2);
  line-height:1.8;
}
.point-list i{
  flex:0 0 18px;
  margin-top:7px;
  font-size:13px;
  color:var(--brand);
}
.point-list strong{ color:#fff; font-weight:600; }
.step-inline{
  margin:22px 0 0;
  padding:20px 22px;
  border-radius:var(--r-sm);
  border:1px solid var(--line);
  border-left:3px solid var(--brand);
  background:rgba(255,255,255,.035);
}
.step-inline ol{
  display:flex;
  flex-direction:column;
  gap:10px;
  counter-reset:si;
}
.step-inline li{
  counter-increment:si;
  display:flex;
  gap:12px;
  font-size:15px;
  color:var(--text-2);
}
.step-inline li::before{
  content:counter(si, decimal-leading-zero);
  font-family:system-ui, sans-serif;
  font-size:12px;
  letter-spacing:.08em;
  color:var(--cta);
  padding-top:5px;
}
@media (max-width:1023px){
  .anchor-card{ position:static; margin-bottom:36px; }
  .doc-section{ margin-bottom:44px; }
  .doc-section h2{ font-size:26px; }
}
@media (max-width:639px){
  .doc-section h2{ font-size:22px; }
  .doc-section p{ font-size:16px; line-height:1.9; }
}

/* ============ 指标条 ============ */
.metric{
  padding:8px 0 8px 20px;
  border-left:1px solid rgba(255,255,255,.12);
}
.metric .num{
  display:block;
  font-family:system-ui, sans-serif;
  font-size:42px;
  font-weight:800;
  letter-spacing:.02em;
  line-height:1.1;
  color:var(--cta);
  text-shadow:0 0 30px rgba(200,245,71,.35);
}
.metric .num.is-cyan{
  color:var(--brand);
  text-shadow:0 0 30px rgba(44,229,210,.35);
}
.metric .num small{ font-size:16px; font-weight:600; margin-left:4px; letter-spacing:.04em; }
.metric .desc{
  display:block;
  margin-top:10px;
  font-size:14px;
  color:var(--text-2);
  line-height:1.7;
}
@media (max-width:1023px){
  .metric{ margin-bottom:28px; }
  .metric .num{ font-size:34px; }
}
@media (max-width:639px){
  .metric{ padding-left:16px; }
  .metric .num{ font-size:30px; }
}

/* ============ 对比卡 ============ */
.compare-card{
  height:100%;
  padding:30px 28px;
  border-radius:var(--r-lg);
  border:1px solid var(--line);
  background:var(--glass);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  box-shadow:var(--shadow);
  transition:border-color .28s ease, transform .28s ease;
}
.compare-card:hover{ transform:translateY(-4px); }
.compare-card.is-good:hover{ border-color:var(--line-strong); }
.compare-card.is-warn:hover{ border-color:rgba(255,154,61,.42); }
.compare-card h3{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:20px;
  margin-bottom:20px;
}
.compare-card.is-good h3 i{ color:var(--brand); }
.compare-card.is-warn h3 i{ color:var(--amber); }
.compare-list{ display:flex; flex-direction:column; gap:14px; }
.compare-list li{
  display:flex;
  gap:12px;
  font-size:15px;
  color:var(--text-2);
  line-height:1.8;
  padding-bottom:14px;
  border-bottom:1px dashed rgba(255,255,255,.08);
}
.compare-list li:last-child{ border-bottom:0; padding-bottom:0; }
.compare-list i{ flex:0 0 16px; margin-top:8px; font-size:12px; }
.compare-card.is-good .compare-list i{ color:var(--brand); }
.compare-card.is-warn .compare-list i{ color:var(--amber); }
@media (max-width:1023px){
  .compare-card{ margin-bottom:24px; }
}

/* ============ FAQ ============ */
.accordion{
  border:0;
  background:transparent;
  margin:0;
}
.accordion .accordion-item{
  position:relative;
  margin-bottom:12px;
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  background:var(--glass);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  overflow:hidden;
  transition:border-color .28s ease, box-shadow .28s ease;
}
.accordion .accordion-item:hover{ border-color:rgba(44,229,210,.22); }
.accordion .accordion-item.is-active{
  border-color:var(--line-strong);
  box-shadow:0 18px 40px -26px rgba(44,229,210,.4);
}
.accordion .accordion-item.is-active::before{
  content:'';
  position:absolute;
  left:0;top:0;bottom:0;
  width:3px;
  background:linear-gradient(180deg,var(--brand),var(--cta));
}
.accordion .accordion-title{
  display:flex;
  align-items:center;
  gap:16px;
  padding:20px 24px;
  margin:0;
  border:0;
  background:transparent;
  color:var(--text);
  font-size:17px;
  font-weight:600;
  line-height:1.6;
  transition:color .22s ease, background-color .22s ease;
}
.accordion .accordion-title::before{ content:none; display:none; }
.accordion .accordion-title:hover{
  background:rgba(255,255,255,.03);
  color:#fff;
}
.accordion .accordion-title .faq-num{
  flex:0 0 auto;
  font-family:system-ui, sans-serif;
  font-size:13px;
  font-weight:700;
  letter-spacing:.08em;
  color:var(--brand);
}
.accordion .accordion-title .faq-icon{
  position:relative;
  flex:0 0 16px;
  width:16px;height:16px;
  margin-left:auto;
}
.accordion .accordion-title .faq-icon::before,
.accordion .accordion-title .faq-icon::after{
  content:'';
  position:absolute;
  background:var(--brand);
  border-radius:2px;
  transition:transform .28s ease, opacity .28s ease;
}
.accordion .accordion-title .faq-icon::before{ left:0; top:7px; width:16px; height:2px; }
.accordion .accordion-title .faq-icon::after{ left:7px; top:0; width:2px; height:16px; }
.accordion .accordion-item.is-active .accordion-title .faq-icon::after{
  transform:rotate(90deg);
  opacity:0;
}
.accordion .accordion-content{
  padding:0 24px 22px 56px;
  border:0;
  background:transparent;
  color:var(--text-2);
  font-size:16px;
  line-height:1.9;
  animation:fadeUp .3s ease;
}
.accordion .accordion-content p:last-child{ margin-bottom:0; }
@keyframes fadeUp{ from{ opacity:0; transform:translateY(6px);} to{ opacity:1; transform:translateY(0);} }
@media (max-width:639px){
  .accordion .accordion-title{ padding:16px 18px; font-size:16px; gap:12px; }
  .accordion .accordion-content{ padding:0 18px 18px 18px; font-size:15px; }
}

/* ============ CTA ============ */
.cta-panel{
  position:relative;
  padding:56px 48px;
  border-radius:24px;
  border:1px solid rgba(44,229,210,.28);
  background:
    radial-gradient(circle at 12% 20%, rgba(44,229,210,.14), transparent 55%),
    radial-gradient(circle at 88% 82%, rgba(200,245,71,.1), transparent 55%),
    linear-gradient(160deg, rgba(255,255,255,.06), rgba(255,255,255,.015));
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  overflow:hidden;
  text-align:center;
}
.cta-panel h2{ margin-bottom:14px; font-size:30px; }
.cta-panel p{
  max-width:640px;
  margin:0 auto 30px;
  font-size:16px;
  color:var(--text-2);
}
.cta-actions{
  display:flex;
  justify-content:center;
  align-items:center;
  gap:16px;
  flex-wrap:wrap;
}
@media (max-width:639px){
  .cta-panel{ padding:38px 22px; border-radius:18px; }
  .cta-panel h2{ font-size:22px; }
  .cta-actions .btn{ width:100%; }
}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:0;
  padding:72px 0 0;
  background:linear-gradient(180deg, var(--bg), #04080F);
  border-top:1px solid var(--line);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.3fr;
  gap:40px;
  padding-bottom:52px;
}
.footer-brand .brand{ margin-bottom:16px; }
.footer-brand p{
  font-size:14px;
  color:var(--text-2);
  max-width:320px;
  line-height:1.85;
  margin-bottom:20px;
}
.footer-social{
  display:flex;
  gap:10px;
}
.footer-social a{
  width:36px;height:36px;
  display:grid;place-items:center;
  border-radius:10px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
  color:var(--text-2);
  font-size:14px;
}
.footer-social a:hover{
  color:var(--brand);
  border-color:rgba(44,229,210,.5);
  background:rgba(44,229,210,.08);
}
.footer-col h4{
  font-size:15px;
  margin-bottom:18px;
  color:#fff;
}
.footer-col ul{ display:flex; flex-direction:column; gap:12px; }
.footer-col ul li a{
  font-size:14px;
  color:var(--text-2);
}
.footer-col ul li a:hover{ color:var(--brand); }
.footer-contact li{
  display:flex;
  gap:10px;
  font-size:13px;
  color:var(--text-2);
  line-height:1.75;
}
.footer-contact i{
  flex:0 0 16px;
  margin-top:5px;
  color:var(--brand);
  font-size:12px;
}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:22px 0;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--text-3);
  flex-wrap:wrap;
}
@media (max-width:1023px){
  .footer-grid{ grid-template-columns:1fr 1fr; gap:32px; padding-bottom:40px; }
}
@media (max-width:639px){
  .site-footer{ padding-top:52px; }
  .footer-grid{ grid-template-columns:1fr; gap:28px; }
  .footer-bottom{ flex-direction:column; align-items:flex-start; }
}

/* roulang page: category4 */
:root{
  --bg:#060C16;
  --bg-2:#0A1626;
  --panel:rgba(255,255,255,.04);
  --glass-grad:linear-gradient(160deg, rgba(255,255,255,.07), rgba(255,255,255,.02));
  --brand:#2CE5D2;
  --brand-soft:rgba(44,229,210,.34);
  --cta:#C8F547;
  --cta-ink:#06121F;
  --accent:#FF9A3D;
  --text:#E8F0FA;
  --text-2:#A7B6C9;
  --text-3:#6F8098;
  --border:rgba(255,255,255,.09);
  --border-soft:rgba(255,255,255,.06);
  --r-lg:18px;
  --r-md:14px;
  --r-sm:12px;
  --shadow-card:0 18px 40px -20px rgba(0,0,0,.8);
  --shadow-cta:0 10px 30px rgba(200,245,71,.28);
  --shadow-cta-hover:0 14px 40px rgba(200,245,71,.42);
  --container:1200px;
  --gutter:32px;
  --section:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .2s ease,border-color .2s ease,background-color .2s ease,box-shadow .25s ease;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;font-weight:400;}
button{margin:0;background:none;border:0;padding:0;cursor:pointer;}
input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;margin:0;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:8px;}
::selection{background:rgba(44,229,210,.3);color:#fff;}

/* ===== 通用容器 ===== */
.container{width:100%;max-width:var(--container);margin:0 auto;padding-left:var(--gutter);padding-right:var(--gutter);}
@media (min-width:1440px){:root{--container:1280px;}}

/* ===== 顶部导航 ===== */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(6,12,22,.74);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  border-bottom:1px solid var(--border-soft);
  transition:background .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.site-header.is-scrolled{
  background:rgba(6,12,22,.95);
  border-bottom-color:rgba(44,229,210,.28);
  box-shadow:0 14px 34px -24px rgba(0,0,0,.9);
}
.nav-inner{display:flex;align-items:center;gap:20px;height:68px;}
.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  background:linear-gradient(150deg,rgba(44,229,210,.24),rgba(200,245,71,.14));
  border:1px solid rgba(44,229,210,.36);
  color:var(--brand);font-size:14px;
  box-shadow:0 0 0 1px rgba(6,12,22,.6) inset;
}
.brand-text{display:flex;flex-direction:column;line-height:1.12;font-size:14.5px;}
.brand-text strong{font-weight:800;letter-spacing:.02em;}
.brand-text span{font-weight:400;color:var(--text-2);font-size:12.5px;letter-spacing:.04em;}
.brand:hover .brand-mark{border-color:var(--brand);box-shadow:0 0 18px -4px rgba(44,229,210,.5);}

.main-nav{display:flex;align-items:center;gap:2px;margin-left:10px;}
.nav-link{
  position:relative;display:inline-block;
  padding:10px 13px;border-radius:10px;
  font-size:14.5px;color:var(--text-2);white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:13px;right:13px;bottom:3px;height:2px;
  background:var(--brand);border-radius:2px;
  transform:scaleX(0);transform-origin:left;transition:transform .26s ease;
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.045);}
.nav-link.is-active{color:var(--text);font-weight:500;}
.nav-link.is-active::after{transform:scaleX(1);}

.nav-side{display:flex;align-items:center;gap:10px;margin-left:auto;}
.nav-search{
  display:flex;align-items:center;gap:8px;
  width:220px;height:38px;padding:0 12px;border-radius:10px;
  background:rgba(255,255,255,.05);border:1px solid var(--border);
  color:var(--text-3);font-size:13px;
  transition:border-color .22s ease,box-shadow .22s ease,background .22s ease;
}
.nav-search i{font-size:12px;color:var(--text-3);}
.nav-search input{flex:1 1 auto;width:100%;background:transparent;border:0;outline:0;font-size:13.5px;color:var(--text);}
.nav-search input::placeholder{color:var(--text-3);}
.nav-search kbd{
  font-family:system-ui,sans-serif;font-size:10.5px;letter-spacing:.06em;
  color:var(--text-3);border:1px solid var(--border);border-radius:6px;
  padding:1px 5px;background:rgba(255,255,255,.04);
}
.nav-search:focus-within{border-color:var(--brand);background:rgba(44,229,210,.06);box-shadow:0 0 0 3px rgba(44,229,210,.16);}
.icon-btn{
  position:relative;width:38px;height:38px;border-radius:10px;display:grid;place-items:center;
  color:var(--text-2);border:1px solid var(--border);background:rgba(255,255,255,.04);
  transition:color .2s ease,border-color .2s ease,background .2s ease,transform .2s ease;
}
.icon-btn:hover{color:var(--brand);border-color:var(--brand-soft);background:rgba(44,229,210,.08);transform:translateY(-1px);}
.icon-btn::after{
  content:attr(data-tip);position:absolute;top:calc(100% + 8px);left:50%;transform:translate(-50%,4px);
  background:rgba(10,22,38,.96);color:var(--text);font-size:12px;padding:5px 9px;border-radius:8px;
  border:1px solid var(--border);white-space:nowrap;opacity:0;pointer-events:none;transition:opacity .2s ease,transform .2s ease;
}
.icon-btn:hover::after{opacity:1;transform:translate(-50%,0);}

.nav-toggle{
  display:none;width:40px;height:40px;border-radius:10px;
  border:1px solid var(--border);background:rgba(255,255,255,.05);
  color:var(--text);place-items:center;font-size:15px;
}
.nav-toggle:hover{border-color:var(--brand-soft);color:var(--brand);}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 24px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .2s ease,box-shadow .25s ease,background .22s ease,border-color .22s ease,color .22s ease;
}
.btn.btn-sm{padding:9px 17px;font-size:13.5px;border-radius:10px;}
.btn-primary{background:var(--cta);color:var(--cta-ink);box-shadow:var(--shadow-cta);}
.btn-primary:hover{background:#d5fa63;box-shadow:var(--shadow-cta-hover);transform:translateY(-2px);}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 18px rgba(200,245,71,.24);}
.btn-ghost{
  background:var(--glass-grad);color:var(--brand);
  border-color:rgba(44,229,210,.32);
  backdrop-filter:blur(12px);
}
.btn-ghost:hover{border-color:var(--brand);box-shadow:0 0 0 3px rgba(44,229,210,.12);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn[disabled],.btn:disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none;}
.btn-text{display:inline-flex;align-items:center;gap:7px;color:var(--brand);font-size:14.5px;font-weight:600;}
.btn-text i{transition:transform .22s ease;}
.btn-text:hover i{transform:translateX(3px);}
.btn-text:hover{color:#6ff3e5;}

/* ===== 徽章 / 标签 ===== */
.badge-pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  font-size:12.5px;letter-spacing:.05em;
  color:var(--brand);background:rgba(44,229,210,.09);
  border:1px solid rgba(44,229,210,.3);
}
.badge-amber{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 11px;border-radius:999px;font-size:12px;
  color:var(--accent);background:rgba(255,154,61,.1);border:1px solid rgba(255,154,61,.32);
}
.eyebrow{
  display:inline-block;font-family:system-ui,-apple-system,sans-serif;
  font-size:12.5px;letter-spacing:.18em;text-transform:uppercase;color:var(--brand);margin-bottom:14px;
}

/* ===== 区块 ===== */
.section{padding:var(--section) 0;position:relative;}
.section--flush{border-top:0;}
.section + .section{border-top:1px solid var(--border-soft);}
.section-head{margin-bottom:46px;max-width:760px;}
.section-head.is-center{margin-left:auto;margin-right:auto;text-align:center;}
.section-head .head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;}
.section-head h2{font-size:32px;font-weight:700;letter-spacing:.01em;line-height:1.35;}
.section-head p{margin-top:14px;color:var(--text-2);font-size:16px;max-width:640px;}
.section-head.is-center p{margin-left:auto;margin-right:auto;}
.section-head .head-link{margin-top:16px;display:inline-flex;}
.soft-line{height:1px;background:linear-gradient(90deg,transparent,rgba(44,229,210,.28),transparent);border:0;margin:0;}

/* ===== 内页 Hero ===== */
.page-hero{position:relative;padding:82px 0 86px;overflow:hidden;isolation:isolate;}
.page-hero-media{
  position:absolute;inset:0;z-index:-2;
  background-size:cover;background-position:center;
  transform:scale(1.05);
}
.page-hero-veil{
  position:absolute;inset:0;z-index:-1;
  background:
    radial-gradient(62% 72% at 10% 14%, rgba(44,229,210,.16), transparent 68%),
    linear-gradient(180deg, rgba(6,12,22,.86) 0%, rgba(6,12,22,.92) 55%, rgba(6,12,22,.98) 100%);
}
.page-hero-body{max-width:820px;}
.page-hero h1{
  margin-top:20px;font-size:44px;font-weight:800;line-height:1.28;letter-spacing:.01em;
}
.page-hero h1 .hl{color:var(--brand);}
.page-hero .hero-lead{margin-top:18px;font-size:17px;color:var(--text-2);max-width:660px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.trust-row{display:flex;flex-wrap:wrap;gap:26px;margin-top:38px;}
.trust-row li{display:flex;align-items:center;gap:9px;font-size:13.5px;color:var(--text-2);}
.trust-row i{color:var(--brand);font-size:13px;}

/* ===== 玻璃卡 ===== */
.glass-card{
  position:relative;
  background:var(--glass-grad);
  border:1px solid var(--border);
  border-radius:var(--r-lg);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  box-shadow:var(--shadow-card);
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.glass-card::before{
  content:"";position:absolute;top:0;left:16px;right:16px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.34),transparent);
  border-radius:2px;
}
.glass-card:hover{transform:translateY(-4px);border-color:var(--brand-soft);}

/* ===== 品牌叙述 ===== */
.brand-narrative{row-gap:34px;}
.brand-media{position:relative;}
.brand-media img{
  width:100%;aspect-ratio:16/11;object-fit:cover;
  border-radius:20px;border:1px solid var(--border);
  box-shadow:var(--shadow-card);
}
.brand-media::after{
  content:"";position:absolute;inset:0;border-radius:20px;
  background:linear-gradient(180deg,rgba(6,12,22,.05),rgba(6,12,22,.62));
  pointer-events:none;
}
.float-stat{
  position:absolute;left:20px;bottom:20px;right:20px;max-width:330px;
  display:flex;gap:22px;padding:16px 20px;border-radius:var(--r-md);
  background:rgba(10,22,38,.78);border:1px solid rgba(44,229,210,.26);
  backdrop-filter:blur(16px);
  z-index:2;
}
.float-stat .stat-num{font-family:system-ui,sans-serif;font-size:24px;font-weight:800;color:var(--cta);letter-spacing:.02em;line-height:1.2;}
.float-stat .stat-num.is-cyan{color:var(--brand);}
.float-stat .stat-cap{font-size:12.5px;color:var(--text-3);margin-top:2px;}
.brand-copy h2{font-size:32px;font-weight:700;line-height:1.38;}
.brand-copy p{margin-top:16px;color:var(--text-2);}
.check-list{margin-top:26px;display:grid;gap:14px;}
.check-list li{display:flex;gap:12px;font-size:15px;color:var(--text-2);}
.check-list i{color:var(--brand);margin-top:6px;font-size:13px;}

/* ===== 时间轴 ===== */
.timeline{
  display:grid;grid-template-columns:repeat(4,1fr);gap:26px;position:relative;margin-top:8px;
}
.timeline::before{
  content:"";position:absolute;top:16px;left:6%;right:6%;height:1px;
  background:linear-gradient(90deg,rgba(44,229,210,.5),rgba(44,229,210,.12));
}
.timeline-item{position:relative;padding-top:48px;}
.timeline-dot{
  position:absolute;top:8px;left:0;width:17px;height:17px;border-radius:50%;
  background:var(--bg);border:2px solid var(--brand);
  box-shadow:0 0 0 5px rgba(44,229,210,.1),0 0 18px rgba(44,229,210,.5);
}
.timeline-step{
  font-family:system-ui,sans-serif;font-size:12px;letter-spacing:.16em;color:var(--brand);
}
.timeline-item h3{margin-top:8px;font-size:18px;font-weight:700;}
.timeline-item p{margin-top:10px;color:var(--text-2);font-size:14.8px;}

/* ===== 能力网格 ===== */
.cap-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.cap-card{padding:28px 26px;}
.cap-icon{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  background:rgba(44,229,210,.1);border:1px solid rgba(44,229,210,.28);
  color:var(--brand);font-size:16px;margin-bottom:18px;
}
.cap-card h3{font-size:20px;font-weight:700;}
.cap-card p{margin-top:12px;color:var(--text-2);font-size:15px;}

/* ===== 场景列表 ===== */
.scene-layout{display:grid;grid-template-columns:5fr 7fr;gap:44px;align-items:start;}
.scene-intro h2{font-size:32px;font-weight:700;line-height:1.38;}
.scene-intro p{margin-top:16px;color:var(--text-2);}
.scene-intro img{
  margin-top:26px;width:100%;aspect-ratio:16/9;object-fit:cover;
  border-radius:var(--r-md);border:1px solid var(--border);
}
.scene-list{display:grid;}
.scene-item{
  display:flex;gap:20px;padding:22px 0;border-bottom:1px solid var(--border-soft);
  transition:border-color .25s ease;
}
.scene-item:first-child{padding-top:6px;}
.scene-item:hover{border-bottom-color:var(--brand-soft);}
.scene-item .idx{
  font-family:system-ui,sans-serif;font-size:13px;font-weight:700;letter-spacing:.1em;
  color:var(--brand);padding-top:5px;flex:0 0 34px;
}
.scene-item h3{font-size:18px;font-weight:700;}
.scene-item p{margin-top:8px;color:var(--text-2);font-size:14.8px;}

/* ===== 流程 ===== */
.flow-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;position:relative;}
.flow-grid::before{
  content:"";position:absolute;top:50px;left:12%;right:12%;height:1px;
  background:linear-gradient(90deg,rgba(44,229,210,.36),rgba(200,245,71,.24));
}
.flow-card{padding:30px 26px 28px;text-align:left;position:relative;z-index:1;}
.flow-num{
  display:inline-grid;place-items:center;width:42px;height:42px;border-radius:50%;
  font-family:system-ui,sans-serif;font-weight:800;font-size:15px;color:var(--cta-ink);
  background:var(--cta);box-shadow:0 0 22px rgba(200,245,71,.42);margin-bottom:18px;
}
.flow-card h3{font-size:19px;font-weight:700;}
.flow-card p{margin-top:10px;color:var(--text-2);font-size:14.8px;}
.flow-card .time-tag{margin-top:16px;}

/* ===== FAQ ===== */
.faq-wrap{max-width:920px;margin:0 auto;}
.faq-accordion{background:transparent;border:0;margin:0;}
.faq-accordion .accordion-item{
  position:relative;background:var(--glass-grad);
  border:1px solid var(--border);border-radius:var(--r-md);
  margin-bottom:14px;overflow:hidden;
  backdrop-filter:blur(14px);
  transition:border-color .25s ease,box-shadow .25s ease;
}
.faq-accordion .accordion-item:hover{border-color:var(--brand-soft);}
.faq-accordion .accordion-item.is-open{border-color:var(--brand-soft);box-shadow:0 18px 40px -26px rgba(44,229,210,.5);}
.faq-accordion .accordion-title{
  position:relative;display:flex;align-items:center;gap:16px;
  padding:20px 22px;font-size:16.5px;font-weight:600;color:var(--text);
  background:transparent;border:0;
}
.faq-accordion .accordion-title::before{content:none !important;display:none !important;}
.faq-accordion .accordion-title::after{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:0 3px 3px 0;
  background:var(--brand);opacity:0;transform:scaleY(.4);transform-origin:center;
  transition:opacity .26s ease,transform .26s ease;
}
.faq-accordion .accordion-item.is-open .accordion-title::after{opacity:1;transform:scaleY(1);}
.faq-accordion .accordion-title:hover{color:#fff;}
.faq-num{
  font-family:system-ui,sans-serif;font-size:13px;font-weight:700;letter-spacing:.1em;
  color:var(--brand);flex:0 0 30px;
}
.faq-q{flex:1 1 auto;}
.faq-plus{position:relative;width:16px;height:16px;flex:0 0 16px;}
.faq-plus::before,.faq-plus::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--brand);border-radius:2px;
  transition:transform .3s ease,opacity .3s ease;
}
.faq-plus::before{width:14px;height:1.6px;transform:translate(-50%,-50%);}
.faq-plus::after{width:1.6px;height:14px;transform:translate(-50%,-50%);}
.faq-accordion .accordion-item.is-open .faq-plus::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0;}
.faq-accordion .accordion-content{
  display:block !important;
  max-height:0;overflow:hidden;padding:0 22px 0 68px;
  color:var(--text-2);font-size:15px;
  transition:max-height .38s ease,padding .3s ease,opacity .3s ease;
  opacity:0;
}
.faq-accordion .accordion-item.is-open .accordion-content{
  max-height:340px;padding:0 22px 22px 68px;opacity:1;
}

/* ===== 服务流程标签 ===== */
.time-tag{
  display:inline-flex;align-items:center;gap:6px;font-size:12px;color:var(--accent);
  padding:3px 10px;border-radius:999px;background:rgba(255,154,61,.1);
  border:1px solid rgba(255,154,61,.28);
}

/* ===== 联系区 ===== */
.contact-layout{display:grid;grid-template-columns:7fr 5fr;gap:32px;align-items:start;}
.contact-card{padding:32px 30px;}
.contact-card h2{font-size:26px;font-weight:700;}
.contact-card > p{margin-top:12px;color:var(--text-2);font-size:15px;}
.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:26px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field--full{grid-column:1 / -1;}
.field label{font-size:13.5px;color:var(--text-2);letter-spacing:.02em;}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;border-radius:var(--r-sm);
  background:rgba(255,255,255,.045);
  border:1px solid var(--border);
  color:var(--text);font-size:15px;
  transition:border-color .22s ease,box-shadow .22s ease,background .22s ease;
}
.field textarea{resize:vertical;min-height:118px;line-height:1.7;}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3);}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);background:rgba(44,229,210,.06);
  box-shadow:0 0 0 3px rgba(44,229,210,.16);
}
.field select{
  appearance:none;-webkit-appearance:none;cursor:pointer;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 10 6'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%232CE5D2' stroke-width='1.6' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center;background-size:11px;
  padding-right:38px;
}
.field select option{background:#0A1626;color:var(--text);}
.field.is-error input,.field.is-error textarea{border-color:var(--accent);box-shadow:0 0 0 3px rgba(255,154,61,.14);}
.field .err-tip{font-size:12.5px;color:var(--accent);display:none;}
.field.is-error .err-tip{display:block;}
.form-foot{display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:24px;}
.form-note{font-size:13.5px;color:var(--text-3);}
.form-note.is-ok{color:var(--brand);}

.side-stack{display:grid;gap:24px;}
.map-card{padding:24px 24px 26px;}
.map-card h3{font-size:18px;font-weight:700;}
.map-card p{margin-top:10px;color:var(--text-2);font-size:14.5px;}
.map-canvas{
  position:relative;margin-top:18px;height:190px;border-radius:var(--r-md);overflow:hidden;
  border:1px solid var(--border);
  background:
    linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px) 0 0/34px 34px,
    linear-gradient(180deg,rgba(255,255,255,.045) 1px,transparent 1px) 0 0/34px 34px,
    radial-gradient(70% 70% at 30% 30%, rgba(44,229,210,.16), transparent 70%),
    #071120;
  display:grid;place-items:center;text-align:center;
}
.map-canvas i{font-size:22px;color:var(--brand);}
.map-canvas span{display:block;margin-top:10px;font-size:13px;color:var(--text-3);}
.map-pin{
  position:absolute;top:38%;left:58%;width:12px;height:12px;border-radius:50%;
  background:var(--cta);box-shadow:0 0 0 6px rgba(200,245,71,.18),0 0 20px rgba(200,245,71,.6);
  animation:pulse 2.6s ease-in-out infinite;
}
@keyframes pulse{0%,100%{transform:scale(1);}50%{transform:scale(1.25);}}
.side-card{padding:24px;}
.side-card h3{font-size:17px;font-weight:700;}
.side-card ul{margin-top:16px;display:grid;gap:12px;}
.side-card li{display:flex;gap:10px;font-size:14px;color:var(--text-2);}
.side-card li i{color:var(--brand);margin-top:6px;font-size:12px;}

/* ===== 结尾 CTA ===== */
.cta-panel{
  position:relative;overflow:hidden;isolation:isolate;
  padding:56px 48px;border-radius:22px;
  background:linear-gradient(120deg,rgba(44,229,210,.12),rgba(200,245,71,.06) 55%,rgba(255,255,255,.03));
  border:1px solid rgba(44,229,210,.24);
  backdrop-filter:blur(16px);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:30px;
}
.cta-panel::after{
  content:"";position:absolute;right:-80px;top:-80px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(44,229,210,.22),transparent 68%);z-index:-1;
}
.cta-panel h2{font-size:30px;font-weight:700;line-height:1.34;}
.cta-panel p{margin-top:12px;color:var(--text-2);max-width:560px;font-size:15.5px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center;}

/* ===== 页脚 ===== */
.site-footer{
  margin-top:8px;padding:64px 0 26px;
  border-top:1px solid var(--border-soft);
  background:linear-gradient(180deg,rgba(10,22,38,.72),rgba(6,12,22,1));
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.4fr;gap:34px;}
.footer-brand p{margin-top:16px;color:var(--text-2);font-size:14px;max-width:330px;}
.footer-social{display:flex;gap:10px;margin-top:20px;}
.footer-social a{
  width:36px;height:36px;border-radius:10px;display:grid;place-items:center;
  border:1px solid var(--border);background:rgba(255,255,255,.04);color:var(--text-2);font-size:13px;
}
.footer-social a:hover{color:var(--brand);border-color:var(--brand-soft);background:rgba(44,229,210,.08);}
.footer-col h4{font-size:15px;font-weight:700;margin-bottom:18px;letter-spacing:.02em;}
.footer-col ul{display:grid;gap:11px;}
.footer-col a{color:var(--text-2);font-size:14px;}
.footer-col a:hover{color:var(--brand);}
.footer-contact li{display:flex;gap:9px;color:var(--text-2);font-size:13.5px;line-height:1.7;}
.footer-contact i{color:var(--brand);margin-top:6px;font-size:12px;flex:0 0 14px;}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  margin-top:44px;padding-top:22px;border-top:1px solid var(--border-soft);
  color:var(--text-3);font-size:13px;
}

/* ===== 移动端抽屉 ===== */
.mobile-drawer{
  position:fixed;inset:0;z-index:90;visibility:hidden;pointer-events:none;
}
.mobile-drawer.is-open{visibility:visible;pointer-events:auto;}
.mobile-drawer-veil{
  position:absolute;inset:0;background:rgba(4,8,15,.7);
  backdrop-filter:blur(6px);opacity:0;transition:opacity .3s ease;
}
.mobile-drawer.is-open .mobile-drawer-veil{opacity:1;}
.mobile-drawer-panel{
  position:absolute;top:0;right:0;bottom:0;width:86%;max-width:360px;
  background:linear-gradient(180deg,#0A1626,#060C16);
  border-left:1px solid var(--border);
  padding:26px 22px 30px;overflow-y:auto;
  display:flex;flex-direction:column;gap:22px;
  transform:translateX(100%);transition:transform .34s cubic-bezier(.4,.02,.2,1);
}
.mobile-drawer.is-open .mobile-drawer-panel{transform:translateX(0);}
.mobile-nav{display:grid;gap:6px;}
.mobile-link{
  display:block;padding:13px 14px;border-radius:var(--r-sm);
  color:var(--text-2);font-size:15.5px;border:1px solid transparent;
}
.mobile-link:hover{color:var(--text);background:rgba(255,255,255,.045);}
.mobile-link.is-active{color:var(--brand);background:rgba(44,229,210,.09);border-color:rgba(44,229,210,.26);}
.mobile-search{
  display:flex;align-items:center;gap:9px;height:42px;padding:0 13px;border-radius:var(--r-sm);
  background:rgba(255,255,255,.05);border:1px solid var(--border);color:var(--text-3);
}
.mobile-search input{flex:1;background:transparent;border:0;outline:0;font-size:14.5px;color:var(--text);}
.mobile-cta{width:100%;}
.drawer-close{
  align-self:flex-end;width:38px;height:38px;border-radius:10px;display:grid;place-items:center;
  border:1px solid var(--border);background:rgba(255,255,255,.04);color:var(--text-2);
}
.drawer-close:hover{color:var(--brand);border-color:var(--brand-soft);}

/* ===== 响应式 ===== */
@media (max-width:1023px){
  :root{--gutter:24px;--section:64px;}
  .main-nav,.nav-search,.icon-btn,.nav-side .btn{display:none;}
  .nav-toggle{display:grid;}
  .page-hero{padding:60px 0 64px;}
  .page-hero h1{font-size:34px;}
  .section-head h2,.brand-copy h2,.scene-intro h2{font-size:26px;}
  .timeline{grid-template-columns:repeat(2,1fr);gap:30px 22px;}
  .timeline::before{display:none;}
  .scene-layout{grid-template-columns:1fr;gap:30px;}
  .contact-layout{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:28px;}
  .cta-panel{padding:42px 32px;}
  .cta-panel h2{font-size:26px;}
}
@media (max-width:767px){
  :root{--gutter:18px;--section:48px;}
  body{font-size:16px;}
  .nav-inner{height:60px;}
  .page-hero{padding:46px 0 52px;}
  .page-hero h1{font-size:28px;}
  .page-hero .hero-lead{font-size:15.5px;}
  .hero-actions .btn{flex:1 1 auto;}
  .trust-row{gap:16px;}
  .section-head{margin-bottom:32px;}
  .section-head h2,.brand-copy h2,.scene-intro h2{font-size:22px;}
  .section-head .head-row{flex-direction:column;align-items:flex-start;gap:12px;}
  .cap-grid{grid-template-columns:1fr;}
  .flow-grid{grid-template-columns:1fr;}
  .flow-grid::before{display:none;}
  .timeline{grid-template-columns:1fr;gap:26px;}
  .timeline-item{padding-top:40px;}
  .form-grid{grid-template-columns:1fr;}
  .faq-accordion .accordion-title{padding:17px 16px;font-size:15.5px;gap:12px;}
  .faq-accordion .accordion-content{padding-left:52px;}
  .faq-accordion .accordion-item.is-open .accordion-content{padding:0 18px 18px 52px;}
  .contact-card,.side-card,.map-card{padding:22px 18px;}
  .cta-panel{padding:32px 22px;border-radius:18px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .float-stat{position:static;max-width:none;margin-top:16px;}
  .scene-item{gap:14px;}
}
@media (max-width:520px){
  .page-hero h1{font-size:25px;}
  .brand-text{font-size:13.5px;}
  .brand-text span{font-size:11.5px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
}