/* roulang page: index */
:root{
  --bg:#05080F;
  --surface:#0A1220;
  --card:#101B2C;
  --glass:rgba(255,255,255,.045);
  --glass-strong:rgba(255,255,255,.06);
  --glass-border:rgba(255,255,255,.09);
  --primary:#17E0B8;
  --primary-deep:#0AA88A;
  --mark:#FFB84D;
  --text:#EAF2FA;
  --text-2:#A9BCD0;
  --text-3:#6E8299;
  --line:rgba(255,255,255,.08);
  --danger:#FF5C7A;
  --r-sm:8px;
  --r-btn:10px;
  --r-card:16px;
  --r-lg:22px;
  --shadow-card:0 18px 40px -24px rgba(0,0,0,.9);
  --shadow-glow:0 0 24px -6px rgba(23,224,184,.65);
  --ease:cubic-bezier(.2,.7,.3,1);
  --bs-body-bg:#05080F;
  --bs-body-color:#EAF2FA;
  --bs-link-color:#17E0B8;
  --bs-link-hover-color:#0AA88A;
  --bs-border-color:rgba(255,255,255,.09);
  --bs-primary:#17E0B8;
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background-color:var(--bg);
  background-image:
    linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px);
  background-size:32px 32px, 32px 32px;
  color:var(--text);
  font-family:var(--bs-font-sans-serif);
  font-size:16px;
  line-height:1.75;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--primary-deep)}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.2px}
h1{font-size:clamp(2rem,4.6vw,3.5rem);line-height:1.2}
h2{font-size:clamp(1.5rem,2.4vw,2rem);line-height:1.3}
h3{font-size:clamp(1.125rem,1.4vw,1.375rem);line-height:1.4}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button,input,textarea,select{font-family:inherit;font-size:inherit}
.num{font-variant-numeric:tabular-nums;font-family:Consolas,"SFMono-Regular",Menlo,monospace}
.container{max-width:1240px;padding-left:20px;padding-right:20px;margin:0 auto}
.section{padding:88px 0}
.section--tight{padding:64px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap}
.section-head p{color:var(--text-2);font-size:15px;margin-top:10px;max-width:640px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:2px;color:var(--primary);
  text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--primary);display:block}
.textlink{color:var(--primary);font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px}
.textlink:hover{text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:2px}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1040;
  background:rgba(6,10,18,.32);
  border-bottom:1px solid var(--line);
  box-shadow:0 10px 30px -25px rgba(0,0,0,.9);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  transition:background .26s var(--ease),backdrop-filter .26s var(--ease),box-shadow .26s var(--ease);
}
.site-header.is-stuck{
  background:rgba(6,10,18,.86);
  backdrop-filter:blur(18px) saturate(150%);
  -webkit-backdrop-filter:blur(18px) saturate(150%);
  border-bottom-color:rgba(255,255,255,.14);
  box-shadow:0 14px 34px -22px rgba(0,0,0,.95);
}
.nav-inner{display:flex;align-items:center;gap:24px;height:72px}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);font-weight:700;font-size:17px;white-space:nowrap}
.brand:hover{color:var(--text)}
.brand-mark{
  width:34px;height:34px;border-radius:10px;flex:0 0 auto;
  background:linear-gradient(135deg,var(--primary),var(--primary-deep));
  display:grid;place-items:center;color:#052018;font-weight:800;font-size:15px;
  box-shadow:0 0 18px -6px rgba(23,224,184,.8);
}
.brand-text small{display:block;font-size:11px;font-weight:500;color:var(--text-3);letter-spacing:1px;line-height:1}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:12px}
.nav-links a{
  position:relative;color:rgba(234,242,250,.85);font-size:15px;padding:10px 12px;border-radius:var(--r-sm);
  transition:color .18s var(--ease);
}
.nav-links a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;background:var(--primary);
  transform:scaleX(0);transform-origin:center;transition:transform .18s var(--ease);
}
.nav-links a:hover{color:#fff}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.active{color:#fff}
.nav-links a.active::after{transform:scaleX(1)}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:12px}
.icon-btn{
  width:44px;height:44px;border-radius:var(--r-btn);display:grid;place-items:center;
  border:1px solid var(--glass-border);background:transparent;color:var(--text-2);
  transition:all .2s var(--ease);
}
.icon-btn:hover{color:var(--primary);border-color:rgba(23,224,184,.4)}
.btn-main,.btn-ghost,.btn-soft{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:11px 22px;border-radius:var(--r-btn);font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;transition:all .22s var(--ease);white-space:nowrap;
}
.btn-main{
  background:linear-gradient(135deg,var(--primary),var(--primary-deep));
  color:#04231B;box-shadow:inset 0 1px 0 rgba(255,255,255,.25),var(--shadow-glow);
}
.btn-main:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:inset 0 1px 0 rgba(255,255,255,.3),0 0 34px -6px rgba(23,224,184,.9);color:#04231B}
.btn-ghost{background:transparent;border-color:var(--glass-border);color:var(--text)}
.btn-ghost:hover{border-color:rgba(23,224,184,.4);color:var(--primary);transform:translateY(-1px)}
.btn-soft{background:var(--glass-strong);border-color:var(--glass-border);color:var(--text)}
.btn-soft:hover{border-color:rgba(23,224,184,.35);color:var(--primary)}
.burger{display:none}
.navbar-toggler{border:1px solid var(--glass-border);border-radius:var(--r-btn);width:44px;height:44px;padding:0;color:var(--text);background:transparent}
.navbar-toggler:focus{box-shadow:none}
.offcanvas{
  background:rgba(8,13,22,.96);backdrop-filter:blur(18px);border-left:1px solid var(--glass-border);
  color:var(--text);
}
.offcanvas-header{border-bottom:1px solid var(--line)}
.offcanvas .m-link{display:block;font-size:18px;line-height:52px;color:var(--text);border-bottom:1px solid var(--line)}
.offcanvas .m-link.active{color:var(--primary)}

/* ---------- Hero ---------- */
.hero{
  position:relative;padding-top:132px;padding-bottom:88px;overflow:hidden;
  background:
    radial-gradient(120% 90% at 12% 0%, rgba(23,224,184,.18), transparent 58%),
    linear-gradient(180deg, #060B14 0%, #05080F 100%);
  border-bottom:1px solid var(--line);
}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center}
.hero h1{margin-bottom:18px}
.hero .lead{color:var(--text-2);font-size:17px;max-width:520px;margin-bottom:26px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:34px}
.hero-stats{display:flex;gap:40px;flex-wrap:wrap;border-top:1px solid var(--line);padding-top:20px}
.hero-stats .stat strong{display:block;font-size:24px;color:var(--text)}
.hero-stats .stat span{font-size:12px;color:var(--text-3);letter-spacing:.5px}
.hero-visual{position:relative}
.hero-frame{
  border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--glass-border);
  background:var(--glass);box-shadow:var(--shadow-card);
  transform:rotateY(-4deg) rotateX(1.5deg);
  animation:floaty 6s ease-in-out infinite;
}
.hero-frame img{width:100%;aspect-ratio:4/3;object-fit:cover}
@keyframes floaty{0%,100%{translate:0 0}50%{translate:0 -10px}}
.hero-tag{
  position:absolute;left:-14px;bottom:26px;padding:10px 16px;border-radius:var(--r-btn);
  background:rgba(10,18,32,.92);border:1px solid var(--glass-border);font-size:13px;color:var(--text-2);
  box-shadow:var(--shadow-card);
}
.hero-tag b{color:var(--primary)}

/* ---------- 合集目录 ---------- */
.catalog{border-top:1px solid var(--line)}
.cat-row{
  display:grid;grid-template-columns:88px 1fr 2fr 90px;gap:24px;align-items:center;
  padding:26px 18px;border-bottom:1px solid var(--line);border-radius:var(--r-card);
  transition:background .22s var(--ease),transform .22s var(--ease);
}
.cat-row:hover{background:rgba(255,255,255,.03);transform:translateX(4px)}
.cat-row:hover .cat-idx{color:var(--primary)}
.cat-idx{font-size:44px;line-height:1;color:var(--text-3);font-weight:700;letter-spacing:-1px}
.cat-title{color:var(--text);font-weight:600}
.cat-title small{display:block;font-weight:400;color:var(--text-3);font-size:12px;margin-top:6px;letter-spacing:.4px}
.cat-desc{color:var(--text-2);font-size:15px}
.cat-arrow{justify-self:end;width:42px;height:42px;border-radius:50%;border:1px solid var(--glass-border);display:grid;place-items:center;color:var(--text-2);transition:all .22s var(--ease)}
.cat-row:hover .cat-arrow{color:var(--primary);border-color:rgba(23,224,184,.4);transform:translateX(3px)}

/* ---------- 精选 ---------- */
.feat-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px}
.card-glass{
  position:relative;background:var(--glass);border:1px solid var(--glass-border);
  border-radius:var(--r-card);overflow:hidden;
  transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.card-glass::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(23,224,184,.6),transparent);
  opacity:.5;
}
.card-glass:hover{transform:translateY(-3px);border-color:rgba(23,224,184,.35);box-shadow:0 0 0 1px rgba(23,224,184,.18),var(--shadow-card)}
.thumb{overflow:hidden}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.card-glass:hover .thumb img{transform:scale(1.03)}
.feat-main .thumb img{aspect-ratio:16/9}
.feat-main .body{padding:26px}
.feat-side{display:grid;gap:24px}
.feat-side .thumb img{aspect-ratio:16/10}
.feat-side .body{padding:18px 20px}
.card-meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap;font-size:13px;color:var(--text-3);margin-top:14px}
.badge-cat{
  display:inline-flex;align-items:center;padding:4px 10px;border-radius:999px;
  font-size:12px;font-weight:600;background:rgba(23,224,184,.12);color:var(--primary);
}
.badge-time{
  display:inline-flex;align-items:center;padding:4px 10px;border-radius:999px;
  font-size:12px;color:var(--text-3);border:1px solid var(--line);
}
.body h3 a{color:var(--text)}
.body h3 a:hover{color:var(--primary)}
.body p{color:var(--text-2);font-size:15px;margin-top:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* ---------- 内容卡列表 ---------- */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.post-card .body{padding:20px}
.post-card .body h3{font-size:17px;margin-top:12px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-card .body h3 a{color:var(--text)}
.post-card .body h3 a:hover{color:var(--primary)}
.post-card .thumb img{aspect-ratio:16/10}
.post-card .foot{display:flex;justify-content:space-between;align-items:center;font-size:13px;color:var(--text-3);margin-top:16px;padding-top:14px;border-top:1px solid var(--line)}
.empty-state{
  min-height:220px;border:1px dashed var(--glass-border);border-radius:var(--r-card);
  background:var(--glass);display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:12px;text-align:center;padding:32px;
}
.empty-state i{font-size:36px;color:var(--text-3)}

/* ---------- 相关推荐横滚 ---------- */
.rail-wrap{position:relative}
.rail{
  display:flex;gap:20px;overflow-x:auto;padding:6px 4px 18px;scroll-snap-type:x mandatory;
  scrollbar-width:thin;
}
.rail::-webkit-scrollbar{height:6px}
.rail::-webkit-scrollbar-thumb{background:rgba(255,255,255,.12);border-radius:999px}
.rail-item{flex:0 0 260px;scroll-snap-align:start}
.rail-item .thumb img{aspect-ratio:16/10}
.rail-item .body{padding:16px 18px}
.rail-item h3{font-size:16px}
.rail-item p{color:var(--text-2);font-size:14px;margin-top:8px}
.rail-mask{position:absolute;top:0;bottom:18px;width:60px;pointer-events:none}
.rail-mask.left{left:0;background:linear-gradient(90deg,var(--bg),transparent)}
.rail-mask.right{right:0;background:linear-gradient(270deg,var(--bg),transparent)}

/* ---------- CTA 带 ---------- */
.cta-band{
  border:1px solid var(--glass-border);border-radius:var(--r-lg);
  background:linear-gradient(120deg,rgba(23,224,184,.10),rgba(255,184,77,.05) 60%,transparent);
  padding:34px 36px;display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
}
.cta-band h2{font-size:clamp(1.25rem,2vw,1.6rem)}
.cta-band p{color:var(--text-2);font-size:15px;margin-top:8px}
.cta-band .actions{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- FAQ ---------- */
.faq .accordion-item{
  background:var(--glass);border:1px solid var(--glass-border)!important;
  border-radius:var(--r-card);margin-bottom:12px;overflow:hidden;
}
.faq .accordion-button{
  background:transparent;color:var(--text);font-size:17px;font-weight:600;padding:18px 22px;
  box-shadow:none;position:relative;
}
.faq .accordion-button::after{filter:invert(1) brightness(.8)}
.faq .accordion-button:not(.collapsed){color:var(--primary);background:rgba(23,224,184,.05)}
.faq .accordion-button:not(.collapsed)::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;background:var(--mark);border-radius:3px;
}
.faq .accordion-button:focus{box-shadow:none;border-color:transparent}
.faq .accordion-body{color:var(--text-2);font-size:15px;line-height:1.8;padding:0 22px 20px}

/* ---------- 表单 ---------- */
.contact-grid{display:grid;grid-template-columns:5fr 7fr;gap:40px;align-items:start}
.form-card{background:var(--glass);border:1px solid var(--glass-border);border-radius:var(--r-lg);padding:30px}
.form-label{font-size:14px;color:var(--text-2);margin-bottom:8px}
.form-control,.form-select{
  background:var(--glass);border:1px solid var(--glass-border);border-radius:var(--r-btn);
  color:var(--text);padding:12px 14px;min-height:44px;
}
.form-control::placeholder{color:var(--text-3)}
.form-control:focus,.form-select:focus{
  background:rgba(255,255,255,.06);border-color:var(--primary);color:var(--text);
  box-shadow:0 0 0 3px rgba(23,224,184,.15);outline:none;
}
.form-hint{font-size:13px;color:var(--text-3);margin-top:12px}
.check-list li{display:flex;gap:12px;align-items:flex-start;color:var(--text-2);font-size:15px;margin-bottom:14px}
.check-list i{color:var(--primary);margin-top:4px}

/* ---------- 页脚 ---------- */
.site-footer{border-top:1px solid var(--line);background:#04070D;padding:64px 0 0;margin-top:20px}
.foot-grid{display:grid;grid-template-columns:2.2fr 1fr 1fr 1.4fr;gap:36px}
.foot-title{font-size:14px;color:var(--text);font-weight:700;margin-bottom:18px;letter-spacing:.5px}
.site-footer p,.site-footer li a{color:var(--text-2);font-size:14px;line-height:2}
.site-footer li a:hover{color:var(--primary)}
.foot-bottom{
  margin-top:44px;border-top:1px solid var(--line);padding:20px 0;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}
.foot-brand{display:flex;align-items:center;gap:10px;color:var(--text);font-weight:700;margin-bottom:14px}

a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,.accordion-button:focus-visible{
  outline:2px solid var(--primary);outline-offset:2px;
}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .hero-grid{gap:32px}
  .cat-row{grid-template-columns:70px 1fr 1.6fr 80px;gap:18px}
  .cat-idx{font-size:38px}
  .post-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:991.98px){
  .nav-links,.nav-right .btn-main{display:none}
  .burger{display:inline-flex}
  .hero{padding-top:112px;padding-bottom:64px}
  .hero-grid{grid-template-columns:1fr}
  .hero-frame{transform:none;animation:none}
  .hero-tag{left:12px;bottom:12px}
  .section{padding:64px 0}
  .feat-grid{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr;gap:28px}
  .foot-grid{grid-template-columns:1fr 1fr}
  .cat-row{grid-template-columns:56px 1fr 80px;padding:22px 14px}
  .cat-desc{grid-column:2/3}
  .cat-idx{font-size:32px}
}
@media (max-width:767.98px){
  .nav-inner{height:60px}
  .site-header.is-stuck .nav-inner{height:60px}
  .post-grid{grid-template-columns:1fr}
  .cat-row{grid-template-columns:44px 1fr 48px;gap:12px}
  .cat-idx{font-size:28px}
  .cat-arrow{width:36px;height:36px}
  .cta-band{padding:26px 22px}
  .hero-stats{gap:26px}
}
@media (max-width:575.98px){
  .container{padding-left:16px;padding-right:16px}
  .section{padding:56px 0}
  .hero{padding-top:100px}
  .hero-cta .btn-main,.hero-cta .btn-ghost{width:100%}
  .foot-grid{grid-template-columns:1fr}
  .form-card{padding:22px}
  .cat-row{padding:18px 10px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
}

/* roulang page: article */
:root{
  --bg:#05080F;
  --bg-soft:#0A1220;
  --panel:#101B2C;
  --glass:rgba(255,255,255,.045);
  --glass-strong:rgba(6,10,18,.86);
  --line:rgba(255,255,255,.09);
  --line-soft:rgba(255,255,255,.08);
  --main:#17E0B8;
  --main-deep:#0AA88A;
  --mark:#FFB84D;
  --danger:#FF5C7A;
  --text:#EAF2FA;
  --text-2:#A9BCD0;
  --text-3:#6E8299;
  --r-sm:8px;
  --r-btn:10px;
  --r-card:16px;
  --r-panel:22px;
  --shadow:0 18px 40px -24px rgba(0,0,0,.9);
  --ease:cubic-bezier(.2,.7,.3,1);
  --bs-body-bg:#05080F;
  --bs-body-color:#EAF2FA;
  --bs-link-color:#17E0B8;
  --bs-link-hover-color:#3FF0CC;
  --bs-border-color:rgba(255,255,255,.09);
  --bs-primary:#17E0B8;
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background-color:var(--bg);
  background-image:
    linear-gradient(rgba(255,255,255,.025) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.025) 1px,transparent 1px);
  background-size:32px 32px,32px 32px;
  overflow-x:hidden;
}
a{color:var(--main);text-decoration:none;transition:color .22s var(--ease)}
a:hover{color:#3FF0CC}
img{max-width:100%;height:auto;display:block}
button,input,textarea,select{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.2px;color:var(--text)}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--main);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px}

/* ============ 导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1050;
  background:rgba(6,10,18,.32);
  border-bottom:1px solid var(--line-soft);
  box-shadow:0 10px 30px -22px rgba(0,0,0,.9);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  transition:background .26s var(--ease),backdrop-filter .26s var(--ease),box-shadow .26s var(--ease);
}
.site-header.is-stuck{
  background:rgba(6,10,18,.86);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  border-bottom-color:rgba(255,255,255,.12);
  box-shadow:0 14px 34px -24px rgba(0,0,0,1);
}
.nav-wrap{display:flex;align-items:center;gap:24px;height:72px;transition:height .26s var(--ease)}
.site-header.is-stuck .nav-wrap{height:68px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;color:var(--text)}
.brand:hover{color:var(--text)}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  display:grid;place-items:center;
  font-weight:800;font-size:17px;color:#04160F;
  background:linear-gradient(135deg,var(--main),var(--main-deep));
  box-shadow:0 0 20px -6px rgba(23,224,184,.7);
}
.brand-text{font-size:17px;font-weight:700;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:auto}
.nav-links a{
  position:relative;font-size:15px;color:rgba(234,242,250,.85);
  padding:6px 0;white-space:nowrap;
}
.nav-links a::after{
  content:"";position:absolute;left:50%;right:50%;bottom:0;height:2px;
  background:var(--main);border-radius:2px;
  transition:left .18s var(--ease),right .18s var(--ease);
}
.nav-links a:hover{color:#fff}
.nav-links a:hover::after{left:0;right:0}
.nav-links a.active{color:#fff}
.nav-links a.active::after{left:0;right:0}
.nav-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.icon-btn{
  width:44px;height:44px;border-radius:var(--r-btn);
  display:grid;place-items:center;
  background:transparent;border:1px solid var(--line);
  color:var(--text-2);cursor:pointer;
  transition:all .22s var(--ease);
}
.icon-btn:hover{border-color:rgba(23,224,184,.45);color:var(--main)}
.menu-btn{
  width:44px;height:44px;border-radius:var(--r-btn);
  display:none;place-items:center;
  background:transparent;border:1px solid var(--line);color:var(--text);
  cursor:pointer;
}
.btn-glow{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;color:#04160F;
  background:linear-gradient(135deg,var(--main),var(--main-deep));
  border:1px solid rgba(255,255,255,.2);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.25),0 0 24px -6px rgba(23,224,184,.65);
  transition:all .22s var(--ease);
}
.btn-glow:hover{
  color:#04160F;transform:translateY(-1px);
  filter:brightness(1.06);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.3),0 0 34px -4px rgba(23,224,184,.85);
}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 18px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;color:var(--text);
  background:transparent;border:1px solid var(--line);
  transition:all .22s var(--ease);cursor:pointer;
}
.btn-ghost:hover{border-color:rgba(23,224,184,.45);color:var(--main);transform:translateY(-1px)}
.btn-link-main{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--main)}
.btn-link-main:hover{text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:2px}

/* ============ 移动导航 ============ */
.offcanvas.offcanvas-end.mobile-nav{
  background:rgba(8,13,23,.96);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-left:1px solid var(--line);
  width:300px;color:var(--text);
}
.mobile-nav .offcanvas-header{border-bottom:1px solid var(--line-soft);padding:16px 20px}
.mobile-nav .brand-text{font-size:16px}
.mobile-nav .btn-close{filter:invert(1) grayscale(1) brightness(1.6);opacity:.7}
.mobile-nav-links{display:flex;flex-direction:column;padding:10px 0}
.mobile-nav-links a{
  display:flex;align-items:center;justify-content:space-between;
  font-size:18px;line-height:52px;padding:0 20px;color:var(--text);
  border-bottom:1px solid rgba(255,255,255,.05);
}
.mobile-nav-links a.active{color:var(--main)}
.mobile-nav-foot{padding:20px;margin-top:auto}
.mobile-nav-foot .btn-glow{width:100%}

/* ============ 文章头部 ============ */
.page-top{
  position:relative;
  padding:132px 0 40px;
  background:
    radial-gradient(760px 320px at 20% 0%,rgba(23,224,184,.16),transparent 70%),
    linear-gradient(180deg,rgba(10,18,32,.9),rgba(5,8,15,0));
  border-bottom:1px solid var(--line-soft);
}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:20px}
.crumb a{color:var(--text-3)}
.crumb a:hover{color:var(--main)}
.crumb .sep{color:var(--text-3);opacity:.7}
.crumb .current{color:var(--text-2);max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-title{
  font-size:clamp(1.75rem,3.4vw,2.7rem);
  line-height:1.25;max-width:22ch;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;
  margin-top:20px;font-size:13.5px;color:var(--text-3);
  font-variant-numeric:tabular-nums;
}
.article-meta .divider{width:1px;height:14px;background:var(--line);display:inline-block}
.badge-cat{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:999px;font-size:12px;
  color:var(--main);background:rgba(23,224,184,.12);
  border:1px solid rgba(23,224,184,.22);
}
.badge-cat:hover{color:#3FF0CC;background:rgba(23,224,184,.18)}
.badge-time{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:999px;font-size:12px;
  color:var(--text-3);border:1px solid var(--line);
}

/* ============ 正文栅格 ============ */
.section{padding:56px 0}
.article-shell{padding:48px 0 88px}
.read-col{max-width:760px}
.article-body{
  font-size:17px;line-height:1.85;color:var(--text-2);
}
.article-body>*+*{margin-top:1.4em}
.article-body p{color:var(--text-2)}
.article-body h2{
  position:relative;
  font-size:clamp(1.25rem,1.9vw,1.5rem);
  color:var(--text);margin-top:40px;padding-left:16px;line-height:1.4;
  scroll-margin-top:96px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.35em;width:4px;height:20px;
  border-radius:2px;background:var(--main);
}
.article-body h3{
  font-size:1.25rem;color:var(--text);margin-top:32px;scroll-margin-top:96px;
}
.article-body ul,.article-body ol{padding-left:0}
.article-body li{
  position:relative;padding-left:22px;margin:10px 0;color:var(--text-2);
}
.article-body ul>li::before{
  content:"";position:absolute;left:4px;top:.72em;width:7px;height:7px;
  border-radius:2px;background:var(--main);
}
.article-body ol{counter-reset:item}
.article-body ol>li{counter-increment:item}
.article-body ol>li::before{
  content:counter(item);position:absolute;left:0;top:.15em;
  font-size:13px;font-weight:700;color:var(--main);
  font-variant-numeric:tabular-nums;
}
.article-body blockquote{
  margin:28px 0;padding:18px 20px;
  background:var(--glass);border:1px solid var(--line);
  border-left:3px solid var(--mark);border-radius:var(--r-sm);
  color:var(--text-2);
}
.article-body img{border-radius:12px;margin:26px 0 8px}
.article-body figure{margin:26px 0}
.article-body figcaption{text-align:center;font-size:13px;color:var(--text-3);margin-top:8px}
.article-body code{
  font-family:Consolas,"SFMono-Regular",Menlo,monospace;font-size:14px;
  background:rgba(23,224,184,.1);color:#7FF3DC;
  padding:2px 6px;border-radius:6px;
}
.article-body pre{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);
  padding:18px;overflow-x:auto;font-size:14px;line-height:1.7;
}
.article-body pre code{background:none;padding:0;color:#CFE6E0}
.article-body table{
  width:100%;border-collapse:collapse;font-size:15px;
  border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--line-soft);text-align:left}
.article-body th{background:rgba(255,255,255,.04);color:var(--text);font-weight:600}
.article-body tbody tr:nth-child(even){background:rgba(255,255,255,.02)}
.article-body a{text-decoration:underline;text-underline-offset:4px}

/* 目录卡 */
.toc-card{
  position:sticky;top:96px;
  background:var(--glass);border:1px solid var(--line);
  border-radius:var(--r-panel);padding:22px;
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
}
.toc-card::before{
  content:"";display:block;height:1px;margin:-22px -22px 18px;
  background:linear-gradient(90deg,rgba(23,224,184,.55),transparent);
  border-radius:var(--r-panel) var(--r-panel) 0 0;
}
.toc-title{font-size:15px;font-weight:700;color:var(--text);margin-bottom:14px;display:flex;align-items:center;gap:8px}
.toc-title i{color:var(--main)}
.toc-list{display:flex;flex-direction:column;gap:2px;max-height:60vh;overflow:auto}
.toc-list a{
  position:relative;display:block;font-size:14px;line-height:1.6;
  color:var(--text-3);padding:8px 12px;border-radius:var(--r-sm);
  transition:all .22s var(--ease);
}
.toc-list a.sub{padding-left:24px;font-size:13.5px}
.toc-list a:hover{color:var(--text);background:rgba(255,255,255,.04);transform:translateX(3px)}
.toc-list a.active{
  color:var(--main);background:rgba(23,224,184,.08);
}
.toc-list a.active::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:3px;
  border-radius:2px;background:var(--main);
}
.toc-empty{font-size:13.5px;color:var(--text-3);line-height:1.7}
.toc-mobile{display:none;margin-bottom:24px}
.toc-mobile .accordion-button{
  background:var(--glass);color:var(--text);border:1px solid var(--line);
  border-radius:var(--r-card) !important;font-size:15px;font-weight:600;
  box-shadow:none;padding:14px 18px;
}
.toc-mobile .accordion-button:not(.collapsed){color:var(--main);background:rgba(23,224,184,.08)}
.toc-mobile .accordion-button::after{filter:invert(.75) sepia(1) saturate(4) hue-rotate(120deg)}
.toc-mobile .accordion-body{padding:14px 8px 4px;background:transparent}

/* 空态 */
.empty-state{
  min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:14px;text-align:center;
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-panel);
  padding:32px 24px;
}
.empty-state i{font-size:40px;color:var(--text-3);opacity:.8}
.empty-state p{color:var(--text-2);font-size:15px}

/* ============ 标签 / 分享条 ============ */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:44px;padding-top:24px;border-top:1px solid var(--line-soft)}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;border-radius:999px;font-size:13px;
  color:var(--text-2);background:rgba(255,255,255,.05);border:1px solid var(--line);
  transition:all .22s var(--ease);
}
.tag:hover{color:var(--main);border-color:rgba(23,224,184,.4);transform:translateY(-1px)}
.share-bar{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:18px;
  margin-top:28px;padding:22px 24px;
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-panel);
  position:relative;overflow:hidden;
}
.share-bar::before{
  content:"";position:absolute;left:0;top:0;right:0;height:1px;
  background:linear-gradient(90deg,rgba(23,224,184,.6),transparent 60%);
}
.share-bar h3{font-size:17px;margin-bottom:4px}
.share-bar p{font-size:13.5px;color:var(--text-3)}
.share-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ============ 上一篇/返回 ============ */
.nav-cards{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:36px}
.nav-card{
  display:flex;align-items:center;gap:16px;
  padding:20px 22px;background:var(--glass);
  border:1px solid var(--line);border-radius:var(--r-card);
  transition:all .24s var(--ease);color:var(--text);
}
.nav-card:hover{
  transform:translateY(-3px);color:var(--text);
  border-color:rgba(23,224,184,.35);
  box-shadow:0 0 0 1px rgba(23,224,184,.18),var(--shadow);
}
.nav-card .nc-icon{
  width:42px;height:42px;flex-shrink:0;border-radius:12px;display:grid;place-items:center;
  background:rgba(23,224,184,.1);color:var(--main);border:1px solid rgba(23,224,184,.2);
}
.nav-card small{display:block;font-size:12.5px;color:var(--text-3);margin-bottom:4px}
.nav-card strong{font-size:15.5px;font-weight:600;color:var(--text)}

/* ============ 相关推荐 ============ */
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px}
.sec-head h2{font-size:clamp(1.4rem,2.2vw,1.9rem)}
.sec-head p{font-size:14px;color:var(--text-3);margin-top:8px}
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card-x{
  position:relative;display:flex;flex-direction:column;overflow:hidden;
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);
  transition:all .24s var(--ease);height:100%;
}
.card-x::before{
  content:"";position:absolute;left:0;top:0;right:0;height:1px;
  background:linear-gradient(90deg,rgba(23,224,184,.55),transparent 70%);
}
.card-x:hover{
  transform:translateY(-3px);
  border-color:rgba(23,224,184,.35);
  box-shadow:0 0 0 1px rgba(23,224,184,.18),var(--shadow);
}
.card-x .thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--panel)}
.card-x .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.card-x:hover .thumb img{transform:scale(1.03)}
.card-x .thumb::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 45%,rgba(5,8,15,.75));
}
.card-x .body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-x h3{font-size:16.5px;line-height:1.45}
.card-x h3 a{color:var(--text)}
.card-x h3 a:hover{color:var(--main)}
.card-x p{font-size:14px;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-x .foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:12.5px;color:var(--text-3);padding-top:12px;border-top:1px solid var(--line-soft)}

/* ============ CTA 带 ============ */
.cta-band{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;
  padding:34px 32px;border-radius:var(--r-panel);
  background:linear-gradient(120deg,rgba(23,224,184,.09),rgba(16,27,44,.9));
  border:1px solid var(--line);position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-80px;width:260px;height:260px;border-radius:50%;
  background:radial-gradient(circle,rgba(23,224,184,.18),transparent 70%);
}
.cta-band h2{font-size:clamp(1.3rem,2vw,1.7rem);margin-bottom:8px}
.cta-band p{font-size:14.5px;color:var(--text-2);max-width:56ch}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;position:relative;z-index:1}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:88px;border-top:1px solid var(--line-soft);
  background:linear-gradient(180deg,rgba(10,18,32,.6),rgba(5,8,15,1));
  padding:64px 0 28px;
}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px}
.foot-brand{display:flex;align-items:center;gap:10px;font-size:16.5px;font-weight:700;color:var(--text);margin-bottom:14px}
.foot-brand .brand-mark{width:30px;height:30px;font-size:15px;border-radius:9px}
.site-footer p{font-size:14px;color:var(--text-3);line-height:1.8;max-width:36ch}
.foot-title{font-size:14px;font-weight:700;color:var(--text);margin-bottom:16px}
.site-footer ul li{margin-bottom:10px}
.site-footer ul li a,.site-footer ul li span{font-size:13.5px;color:var(--text-3)}
.site-footer ul li a:hover{color:var(--main)}
.foot-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid var(--line-soft);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--text-3);
}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .nav-links{gap:20px}
  .brand-text{font-size:16px}
}
@media (max-width:991.98px){
  .nav-links{display:none}
  .menu-btn{display:grid}
  .nav-actions .btn-glow{display:none}
  .toc-card{display:none}
  .toc-mobile{display:block}
  .page-top{padding-top:116px}
  .article-shell{padding:32px 0 64px}
  .rel-grid{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px}
  .cta-band{padding:28px 22px}
}
@media (max-width:767.98px){
  .container{padding:0 16px}
  .nav-wrap{height:60px}
  .site-header.is-stuck .nav-wrap{height:60px}
  .article-title{font-size:clamp(1.6rem,6vw,2rem);max-width:none}
  .crumb .current{white-space:normal;max-width:100%}
  .section{padding:44px 0}
  .nav-cards{grid-template-columns:1fr}
  .rel-grid{grid-template-columns:1fr}
  .site-footer{margin-top:64px;padding:48px 0 24px}
  .foot-grid{grid-template-columns:1fr;gap:26px}
  .share-bar{padding:20px}
  .share-actions{width:100%}
  .share-actions .btn-glow,.share-actions .btn-ghost{flex:1}
  .sec-head{flex-direction:column;align-items:flex-start;gap:10px}
}
@media (max-width:575.98px){
  .article-body{font-size:16px;line-height:1.8}
  .article-meta{font-size:12.5px;gap:10px}
  .cta-actions .btn-glow,.cta-actions .btn-ghost{width:100%}
  .toc-card{padding:18px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
  .card-x:hover,.nav-card:hover,.btn-glow:hover{transform:none}
}

/* roulang page: category1 */
:root{
  --bg:#05080F;
  --panel:#0A1220;
  --card:#101B2C;
  --glass:rgba(255,255,255,.045);
  --glass-border:rgba(255,255,255,.09);
  --line:rgba(255,255,255,.08);
  --primary:#17E0B8;
  --primary-dark:#0AA88A;
  --mark:#FFB84D;
  --text:#EAF2FA;
  --muted:#A9BCD0;
  --weak:#6E8299;
  --danger:#FF5C7A;
  --r-sm:8px;
  --r-btn:10px;
  --r-card:16px;
  --r-panel:22px;
  --ease:cubic-bezier(.2,.7,.3,1);
  --bs-body-bg:#05080F;
  --bs-body-color:#EAF2FA;
  --bs-link-color:#17E0B8;
  --bs-link-hover-color:#17E0B8;
  --bs-border-color:rgba(255,255,255,.09);
  --bs-primary:#17E0B8;
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.025) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.025) 1px,transparent 1px);
  background-size:32px 32px;
}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none;transition:color .22s var(--ease)}
a:hover{color:var(--text)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:650;color:var(--text)}
p{margin:0}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px}
.container{max-width:1240px;padding-inline:20px;margin-inline:auto}
main,header,footer,section{position:relative;z-index:1}
h2{scroll-margin-top:96px}
h3{scroll-margin-top:96px}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:1030;
  background:rgba(6,10,18,.32);
  border-bottom:1px solid rgba(255,255,255,.06);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:0 10px 30px -24px rgba(0,0,0,.9);
  transition:background .26s var(--ease),backdrop-filter .26s var(--ease),box-shadow .26s var(--ease),border-color .26s var(--ease);
}
.site-header.is-stuck{
  background:rgba(6,10,18,.86);
  border-bottom-color:rgba(255,255,255,.1);
  backdrop-filter:blur(18px) saturate(150%);
  -webkit-backdrop-filter:blur(18px) saturate(150%);
  box-shadow:0 14px 34px -22px rgba(0,0,0,.95);
}
.site-header.is-stuck .header-inner{height:68px}
.header-inner{
  display:flex;
  align-items:center;
  gap:24px;
  height:72px;
  transition:height .26s var(--ease);
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-weight:700;
  font-size:17px;
  color:var(--text);
  white-space:nowrap;
  letter-spacing:.2px;
}
.brand:hover{color:var(--text)}
.brand-mark{
  width:34px;height:34px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:10px;
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  color:#04231D;
  font-weight:800;
  font-size:16px;
  box-shadow:0 0 22px -8px rgba(23,224,184,.85);
  flex:0 0 auto;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:26px;
  margin-left:auto;
}
.nav-links a{
  position:relative;
  color:rgba(234,242,250,.85);
  font-size:15px;
  padding:6px 2px;
  line-height:1.4;
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:50%;right:50%;
  bottom:0;
  height:2px;
  background:var(--primary);
  border-radius:2px;
  transition:left .18s var(--ease),right .18s var(--ease);
}
.nav-links a:hover{color:var(--text)}
.nav-links a:hover::after{left:0;right:0}
.nav-links a.active{color:var(--text)}
.nav-links a.active::after{left:0;right:0}
.header-actions{display:flex;align-items:center;gap:12px}
.icon-btn{
  width:44px;height:44px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:var(--r-btn);
  border:1px solid var(--glass-border);
  background:var(--glass);
  color:var(--muted);
  cursor:pointer;
  transition:all .22s var(--ease);
}
.icon-btn:hover{color:var(--primary);border-color:rgba(23,224,184,.35)}
.icon-btn svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.burger{display:none}
.btn-primary-glow{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;
  padding:11px 22px;
  border:0;
  border-radius:var(--r-btn);
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  color:#04231D;
  font-weight:650;
  font-size:15px;
  letter-spacing:.2px;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.25),0 0 24px -6px rgba(23,224,184,.65);
  transition:all .24s var(--ease);
  cursor:pointer;
}
.btn-primary-glow:hover{
  color:#04231D;
  filter:brightness(1.06);
  transform:translateY(-1px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.3),0 0 34px -4px rgba(23,224,184,.9);
}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;
  padding:11px 22px;
  border:1px solid var(--glass-border);
  border-radius:var(--r-btn);
  background:transparent;
  color:var(--text);
  font-weight:550;
  font-size:15px;
  transition:all .24s var(--ease);
  cursor:pointer;
}
.btn-ghost:hover{border-color:rgba(23,224,184,.4);color:var(--primary);transform:translateY(-1px)}
.btn-sm{padding:9px 18px;min-height:40px;font-size:14px}

/* ---------- 移动端抽屉 ---------- */
.site-drawer{
  background:rgba(8,14,24,.96);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-left:1px solid var(--line);
  color:var(--text);
  width:min(88vw,340px);
}
.site-drawer .offcanvas-header{
  padding:18px 20px;
  border-bottom:1px solid var(--line);
}
.site-drawer .offcanvas-body{padding:12px 20px 20px}
.drawer-link{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:52px;
  font-size:18px;
  color:rgba(234,242,250,.86);
  border-bottom:1px solid var(--line);
}
.drawer-link.active{color:var(--primary)}
.drawer-link:hover{color:var(--primary)}
.drawer-foot{padding:16px 20px 26px;border-top:1px solid var(--line)}

/* ---------- 分类页首屏 ---------- */
.cat-hero{
  padding:132px 0 64px;
  min-height:340px;
  background:
    radial-gradient(900px 380px at 12% -10%,rgba(23,224,184,.18),transparent 68%),
    linear-gradient(180deg,rgba(10,18,32,.85),rgba(5,8,15,.2));
  border-bottom:1px solid var(--line);
}
.cat-hero-grid{
  display:grid;
  grid-template-columns:1.35fr 1fr;
  gap:40px;
  align-items:center;
}
.breadcrumb-row{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--weak);
  margin-bottom:16px;
}
.breadcrumb-row a{color:var(--weak)}
.breadcrumb-row a:hover{color:var(--primary)}
.breadcrumb-row span{color:var(--weak)}
.breadcrumb-row .current{color:var(--muted)}
.cat-hero h1{
  font-size:clamp(1.9rem,3.6vw,3rem);
  line-height:1.2;
  letter-spacing:-.4px;
  margin-bottom:16px;
}
.cat-hero .lead-text{
  color:var(--muted);
  font-size:16.5px;
  max-width:640px;
}
.cat-hero-figure{
  border-radius:var(--r-panel);
  border:1px solid var(--glass-border);
  background:var(--glass);
  padding:10px;
  overflow:hidden;
}
.cat-hero-figure img{
  width:100%;
  height:236px;
  object-fit:cover;
  border-radius:14px;
}
.cat-meta{
  display:flex;
  gap:22px;
  flex-wrap:wrap;
  margin-top:22px;
  font-size:13px;
  color:var(--weak);
}
.cat-meta b{
  display:block;
  font-family:Consolas,"SFMono-Regular",Menlo,monospace;
  font-variant-numeric:tabular-nums;
  font-size:20px;
  color:var(--primary);
  font-weight:650;
  letter-spacing:.4px;
}

/* ---------- 主体布局 ---------- */
.page-body{padding:72px 0 88px}
.layout{
  display:grid;
  grid-template-columns:3fr 9fr;
  gap:32px;
  align-items:start;
}
.toc-card{
  position:sticky;
  top:96px;
  border-radius:var(--r-panel);
  border:1px solid var(--glass-border);
  background:var(--glass);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  padding:22px 20px;
  box-shadow:0 20px 44px -34px rgba(0,0,0,.95);
}
.toc-title{
  font-size:13px;
  letter-spacing:2px;
  color:var(--weak);
  margin-bottom:14px;
}
.toc-list{display:flex;flex-direction:column;gap:2px}
.toc-list a{
  display:flex;
  align-items:center;
  gap:10px;
  padding:9px 8px 9px 12px;
  border-radius:var(--r-sm);
  font-size:14.5px;
  color:var(--muted);
  border-left:3px solid transparent;
  transition:all .22s var(--ease);
}
.toc-list a:hover{background:rgba(255,255,255,.03);color:var(--text);transform:translateX(3px)}
.toc-list a.current{
  color:var(--primary);
  border-left-color:var(--primary);
  background:rgba(23,224,184,.07);
}
.toc-list a span{
  font-family:Consolas,"SFMono-Regular",Menlo,monospace;
  font-size:12px;
  color:var(--weak);
  font-variant-numeric:tabular-nums;
}
.toc-tip{
  margin-top:18px;
  padding-top:16px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--weak);
  line-height:1.7;
}

.content-flow{display:flex;flex-direction:column;gap:24px}
.content-block{
  position:relative;
  border-radius:var(--r-card);
  border:1px solid var(--glass-border);
  background:var(--card);
  padding:30px 30px 30px 34px;
  overflow:hidden;
  transition:border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.content-block::before{
  content:"";
  position:absolute;
  left:0;top:26px;
  width:3px;height:38px;
  border-radius:0 3px 3px 0;
  background:var(--primary);
  box-shadow:0 0 18px -2px rgba(23,224,184,.7);
}
.content-block::after{
  content:"";
  position:absolute;
  left:0;right:0;top:0;
  height:1px;
  background:linear-gradient(90deg,rgba(23,224,184,.45),rgba(255,255,255,.02) 55%,transparent);
}
.content-block:hover{
  border-color:rgba(23,224,184,.35);
  box-shadow:0 0 0 1px rgba(23,224,184,.18),0 18px 40px -24px rgba(0,0,0,.9);
}
.content-block h2{
  font-size:clamp(1.35rem,2vw,1.75rem);
  margin-bottom:14px;
}
.content-block h3{
  font-size:1.125rem;
  margin:22px 0 8px;
}
.content-block p{color:var(--muted);font-size:16px}
.content-block p+p{margin-top:12px}
.point-list{margin-top:18px;display:flex;flex-direction:column;gap:12px}
.point-list li{
  position:relative;
  padding-left:22px;
  color:var(--muted);
  font-size:15.5px;
  line-height:1.75;
}
.point-list li::before{
  content:"";
  position:absolute;
  left:0;top:10px;
  width:8px;height:8px;
  border-radius:50%;
  border:1.6px solid var(--primary);
  background:rgba(23,224,184,.18);
}
.point-list li b{color:var(--text);font-weight:600}
.block-figure{
  margin-top:20px;
  border-radius:14px;
  overflow:hidden;
  border:1px solid var(--glass-border);
}
.block-figure img{
  width:100%;
  height:220px;
  object-fit:cover;
  transition:transform .5s var(--ease);
}
.block-figure:hover img{transform:scale(1.03)}
.fig-cap{
  font-size:13px;
  color:var(--weak);
  padding:10px 14px;
  background:rgba(255,255,255,.02);
  border-top:1px solid var(--line);
}
.quote-mark{
  margin-top:20px;
  padding:18px 20px;
  border-radius:12px;
  border:1px solid var(--glass-border);
  border-left:3px solid var(--mark);
  background:var(--glass);
  color:var(--muted);
  font-size:15.5px;
}
.quote-mark b{color:var(--mark);font-weight:600}
.step-list{margin-top:20px;display:flex;flex-direction:column;gap:14px}
.step-list li{
  display:grid;
  grid-template-columns:56px 1fr;
  gap:16px;
  padding:16px 18px;
  border-radius:12px;
  border:1px solid var(--glass-border);
  background:rgba(255,255,255,.02);
  transition:all .24s var(--ease);
}
.step-list li:hover{border-color:rgba(23,224,184,.32);transform:translateX(3px)}
.step-no{
  font-family:Consolas,"SFMono-Regular",Menlo,monospace;
  font-variant-numeric:tabular-nums;
  font-size:26px;
  line-height:1.1;
  color:rgba(23,224,184,.55);
  font-weight:600;
}
.step-list h3{margin:0 0 6px;font-size:17px}
.step-list p{font-size:15px;color:var(--muted)}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.tag{
  display:inline-flex;
  align-items:center;
  padding:4px 10px;
  border-radius:999px;
  font-size:12px;
  letter-spacing:.3px;
  background:rgba(23,224,184,.12);
  color:var(--primary);
  border:1px solid rgba(23,224,184,.22);
}
.tag.neutral{
  background:transparent;
  color:var(--weak);
  border:1px solid var(--line);
}
.compare{
  margin-top:18px;
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:16px;
}
.compare > div{
  border-radius:12px;
  border:1px solid var(--glass-border);
  padding:16px 18px;
  background:rgba(255,255,255,.02);
}
.compare h3{font-size:16px;margin:0 0 10px}
.compare .ok h3{color:var(--primary)}
.compare .no h3{color:var(--mark)}
.compare ul li{
  position:relative;
  padding-left:16px;
  font-size:14.5px;
  color:var(--muted);
  line-height:1.8;
}
.compare ul li::before{
  content:"";
  position:absolute;
  left:0;top:11px;
  width:6px;height:6px;
  border-radius:2px;
  background:var(--weak);
}
.compare .ok ul li::before{background:var(--primary)}
.compare .no ul li::before{background:var(--mark)}

/* ---------- FAQ ---------- */
.faq-acc{margin-top:22px;border-radius:14px;overflow:hidden;border:1px solid var(--glass-border)}
.faq-acc .accordion-item{
  background:var(--glass);
  border:0;
  border-bottom:1px solid var(--line);
}
.faq-acc .accordion-item:last-child{border-bottom:0}
.faq-acc .accordion-button{
  background:transparent;
  color:var(--text);
  font-size:17px;
  font-weight:600;
  padding:18px 20px;
  box-shadow:none;
  border-left:3px solid transparent;
  transition:all .22s var(--ease);
}
.faq-acc .accordion-button:not(.collapsed){
  color:var(--primary);
  background:rgba(23,224,184,.05);
  border-left-color:var(--primary);
}
.faq-acc .accordion-button::after{
  filter:invert(72%) sepia(38%) saturate(1400%) hue-rotate(115deg) brightness(105%);
}
.faq-acc .accordion-button:focus{box-shadow:none;outline:none}
.faq-acc .accordion-body{
  padding:2px 20px 20px;
  color:var(--muted);
  font-size:15px;
  line-height:1.8;
}

/* ---------- CTA 带 ---------- */
.cta-band{
  margin-top:32px;
  border-radius:var(--r-panel);
  border:1px solid var(--glass-border);
  background:
    radial-gradient(700px 240px at 8% 0%,rgba(23,224,184,.15),transparent 70%),
    var(--glass);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  padding:32px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:26px;
  flex-wrap:wrap;
  box-shadow:0 24px 50px -40px rgba(0,0,0,.95);
}
.cta-band h2{font-size:1.5rem;margin-bottom:8px}
.cta-band p{color:var(--muted);font-size:15px;max-width:620px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(10,18,32,.55),rgba(5,8,15,.95));
  padding:64px 0 26px;
  margin-top:0;
}
.foot-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.1fr;
  gap:36px;
}
.foot-brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-weight:700;
  font-size:16.5px;
  margin-bottom:14px;
}
.foot-brand .brand-mark{width:30px;height:30px;border-radius:9px;font-size:14px}
.site-footer p{color:var(--weak);font-size:14px;line-height:1.8}
.foot-title{
  font-size:13px;
  letter-spacing:1.6px;
  color:var(--muted);
  margin-bottom:14px;
}
.site-footer ul{display:flex;flex-direction:column;gap:10px}
.site-footer ul li{font-size:14.5px;color:var(--weak);line-height:1.7}
.site-footer ul li a{color:var(--weak)}
.site-footer ul li a:hover{color:var(--primary)}
.foot-bottom{
  margin-top:40px;
  padding-top:20px;
  border-top:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--weak);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .layout{grid-template-columns:3.4fr 8.6fr;gap:24px}
  .content-block{padding:26px 26px 26px 30px}
  .foot-grid{grid-template-columns:1.5fr 1fr 1fr;gap:30px}
}
@media (max-width:991.98px){
  .nav-links{display:none}
  .burger{display:inline-flex}
  .header-inner{height:60px;gap:14px}
  .site-header.is-stuck .header-inner{height:60px}
  .cat-hero{padding:112px 0 52px;min-height:0}
  .cat-hero-grid{grid-template-columns:1fr;gap:26px}
  .cat-hero-figure img{height:210px}
  .page-body{padding:56px 0 64px}
  .layout{grid-template-columns:1fr}
  .toc-card{
    position:static;
    padding:16px;
  }
  .toc-list{
    flex-direction:row;
    overflow-x:auto;
    gap:8px;
    padding-bottom:4px;
    scrollbar-width:thin;
  }
  .toc-list a{
    flex:0 0 auto;
    border-left:0;
    border:1px solid var(--glass-border);
    border-radius:999px;
    padding:8px 14px;
    white-space:nowrap;
  }
  .toc-list a.current{border-color:rgba(23,224,184,.5);background:rgba(23,224,184,.1)}
  .toc-list a span{display:none}
  .toc-tip{display:none}
  .compare{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767.98px){
  .cat-hero h1{font-size:1.75rem}
  .content-block{padding:22px 18px 22px 22px}
  .content-block::before{top:20px;height:30px}
  .cta-band{padding:24px 20px}
  .step-list li{grid-template-columns:40px 1fr;gap:12px;padding:14px}
  .step-no{font-size:20px}
  .foot-grid{grid-template-columns:1fr}
  .foot-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:575.98px){
  .container{padding-inline:16px}
  .cat-hero-figure img{height:170px}
  .cat-meta{gap:16px}
  .cat-meta b{font-size:18px}
  .cta-actions{width:100%}
  .cta-actions .btn-primary-glow,
  .cta-actions .btn-ghost{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
}

/* roulang page: category2 */
:root{
  --bg:#05080F;
  --bg-2:#0A1220;
  --surface:#101B2C;
  --glass:rgba(255,255,255,.045);
  --line:rgba(255,255,255,.09);
  --line-soft:rgba(255,255,255,.08);
  --primary:#17E0B8;
  --primary-deep:#0AA88A;
  --mark:#FFB84D;
  --text:#EAF2FA;
  --text-2:#A9BCD0;
  --text-3:#6E8299;
  --err:#FF5C7A;
  --r-sm:8px;
  --r-btn:10px;
  --r-card:16px;
  --r-panel:22px;
  --ease:cubic-bezier(.2,.7,.3,1);
  --shadow-hover:0 0 0 1px rgba(23,224,184,.18),0 18px 40px -24px rgba(0,0,0,.9);

  --bs-body-bg:#05080F;
  --bs-body-color:#EAF2FA;
  --bs-border-color:rgba(255,255,255,.09);
  --bs-link-color:#17E0B8;
  --bs-link-hover-color:#4ff0cd;
  --bs-primary:#17E0B8;
  --bs-primary-rgb:23,224,184;
  --bs-emphasis-color:#EAF2FA;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background-color:#05080F;
  background-image:
    linear-gradient(rgba(255,255,255,.025) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.025) 1px,transparent 1px);
  background-size:32px 32px;
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--primary);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:#4ff0cd}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--text);letter-spacing:.2px}
p{margin:0}
ul,ol{margin:0;padding:0}
button{font-family:inherit}
.num{font-variant-numeric:tabular-nums;font-family:Consolas,SFMono-Regular,Menlo,monospace}

.container{width:100%;max-width:1240px;margin-inline:auto;padding-inline:24px}

/* ============ 导航 ============ */
.nav-bar{
  position:fixed;top:0;left:0;right:0;z-index:1040;
  background:rgba(6,10,18,.32);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.07);
  box-shadow:0 10px 30px -24px rgba(0,0,0,.9);
  transition:background .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.nav-bar.is-stuck{
  background:rgba(6,10,18,.86);
  -webkit-backdrop-filter:blur(18px) saturate(160%);
  backdrop-filter:blur(18px) saturate(160%);
  border-bottom-color:rgba(255,255,255,.12);
  box-shadow:0 14px 34px -26px rgba(0,0,0,.95);
}
.nav-inner{display:flex;align-items:center;gap:20px;height:72px;transition:height .24s var(--ease)}
.nav-bar.is-stuck .nav-inner{height:68px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--primary),var(--primary-deep));
  color:#04150F;font-weight:800;font-size:17px;line-height:1;
  box-shadow:0 0 22px -8px rgba(23,224,184,.85);
}
.brand-text{color:var(--text);font-weight:700;font-size:16px;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:4px;flex:1;margin-left:6px}
.nav-links a{
  position:relative;display:inline-block;padding:10px 12px;border-radius:var(--r-sm);
  color:rgba(234,242,250,.85);font-size:15px;white-space:nowrap;
}
.nav-links a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;border-radius:2px;
  background:var(--primary);transform:scaleX(0);transform-origin:center;
  transition:transform .18s var(--ease);
}
.nav-links a:hover{color:#fff}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.active{color:#fff}
.nav-links a.active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:auto}
.icon-btn{
  width:40px;height:40px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:rgba(255,255,255,.04);
  color:var(--text-2);display:grid;place-items:center;cursor:pointer;
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.icon-btn:hover{color:var(--primary);border-color:rgba(23,224,184,.35);background:rgba(23,224,184,.08)}
.icon-btn svg{width:18px;height:18px}
.menu-btn{display:none}

/* ============ 按钮 ============ */
.btn-main,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:11px 20px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;line-height:1;cursor:pointer;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),filter .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.btn-main{
  border:0;color:#04150F;
  background:linear-gradient(135deg,var(--primary),var(--primary-deep));
  box-shadow:inset 0 1px 0 rgba(255,255,255,.25),0 0 24px -6px rgba(23,224,184,.65);
}
.btn-main:hover{color:#04150F;filter:brightness(1.06);transform:translateY(-1px);box-shadow:inset 0 1px 0 rgba(255,255,255,.3),0 0 34px -6px rgba(23,224,184,.9)}
.btn-ghost{
  border:1px solid var(--line);background:transparent;color:var(--text);
}
.btn-ghost:hover{color:var(--text);border-color:rgba(23,224,184,.4);transform:translateY(-1px)}
.btn-ghost.is-done{border-color:rgba(23,224,184,.6);color:var(--primary)}
.btn-sm{min-height:40px;padding:9px 16px;font-size:14px}
.btn-text{color:var(--primary);font-weight:600;font-size:14px;display:inline-flex;align-items:center;gap:6px}
.btn-text:hover{text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:2px}
a:focus-visible,button:focus-visible,.accordion-button:focus-visible{
  outline:2px solid var(--primary);outline-offset:2px;border-radius:var(--r-sm);
}

/* ============ 分类页 Hero ============ */
.page-hero{position:relative;padding:132px 0 64px;overflow:hidden}
.page-hero::before{
  content:"";position:absolute;left:10%;right:10%;top:-30%;height:520px;pointer-events:none;
  background:radial-gradient(closest-side,rgba(23,224,184,.18),transparent 72%);
}
.hero-grid{position:relative;display:grid;grid-template-columns:1.35fr 1fr;gap:40px;align-items:center}
.crumb{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text-3);margin-bottom:18px;flex-wrap:wrap}
.crumb a{color:var(--text-2)}
.crumb a:hover{color:var(--primary)}
.crumb .sep{color:rgba(110,130,153,.55)}
.page-hero h1{font-size:clamp(2rem,4.6vw,3.5rem);line-height:1.2;margin-bottom:16px}
.hero-lead{color:var(--text-2);font-size:16px;max-width:56ch;line-height:1.85}
.hero-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;list-style:none}
.chip{
  display:inline-flex;align-items:center;gap:8px;height:34px;padding:0 14px;border-radius:999px;
  font-size:13px;color:var(--text-2);border:1px solid var(--line);background:rgba(255,255,255,.03);
}
.chip .dot{width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px rgba(23,224,184,.9)}
.hero-visual{position:relative}
.hero-visual img{
  width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:var(--r-card);
  border:1px solid var(--line);
  box-shadow:0 28px 60px -34px rgba(0,0,0,.95);
}

/* ============ 板块 ============ */
.section{padding:88px 0}
.section-tight{padding:56px 0 88px}
.sec-head{max-width:720px;margin-bottom:44px}
.sec-head h2{font-size:clamp(1.5rem,2.4vw,2rem);line-height:1.3;margin-bottom:14px}
.sec-head p{color:var(--text-2);font-size:15px;line-height:1.85}
.eyebrow{
  display:inline-block;font-size:12px;letter-spacing:2px;color:var(--primary);
  text-transform:uppercase;margin-bottom:12px;font-variant-numeric:tabular-nums;
}
h2{scroll-margin-top:96px}

/* ============ 编号时间轴 ============ */
.timeline{position:relative;list-style:none;padding:0;margin:0}
.timeline::before{
  content:"";position:absolute;top:8px;bottom:8px;left:50%;width:1px;
  background:linear-gradient(180deg,rgba(255,255,255,0),rgba(255,255,255,.14) 10%,rgba(255,255,255,.14) 90%,rgba(255,255,255,0));
}
.tl-item{position:relative;width:50%;padding:0 60px 34px 0}
.tl-item:nth-child(even){margin-left:50%;padding:0 0 34px 60px}
.tl-dot{
  position:absolute;top:30px;right:-6px;width:13px;height:13px;border-radius:50%;
  background:var(--primary);
  box-shadow:0 0 0 6px rgba(23,224,184,.12),0 0 18px -2px rgba(23,224,184,.9);
}
.tl-item:nth-child(even) .tl-dot{left:-6px;right:auto}
.tl-card{
  position:relative;overflow:hidden;
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px 24px 22px;
  transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.tl-card::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,rgba(23,224,184,.65),rgba(23,224,184,0));
}
.tl-card:hover{transform:translateY(-3px);border-color:rgba(23,224,184,.35);box-shadow:var(--shadow-hover)}
.tl-card h3{font-size:clamp(1.125rem,1.4vw,1.375rem);line-height:1.4;margin-bottom:10px}
.tl-card p{color:var(--text-2);font-size:15px;line-height:1.8}
.tl-num{
  position:absolute;right:14px;bottom:-18px;font-size:64px;font-weight:800;line-height:1;
  color:rgba(110,130,153,.15);letter-spacing:2px;pointer-events:none;user-select:none;
}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 10px;border-radius:999px;
  font-size:12px;color:var(--primary);background:rgba(23,224,184,.12);border:1px solid rgba(23,224,184,.22);
}
.tag--plain{color:var(--text-3);background:transparent;border-color:rgba(255,255,255,.12)}

/* ============ 易混情况 ============ */
.split{display:grid;grid-template-columns:1.45fr 1fr;gap:28px;align-items:start}
.note-list{
  border:1px solid var(--line);border-radius:var(--r-panel);
  background:var(--glass);overflow:hidden;
}
.note-row{
  display:grid;grid-template-columns:52px 1fr;gap:18px;
  padding:22px 24px;border-bottom:1px solid var(--line-soft);
  transition:background .2s var(--ease),padding-left .2s var(--ease);
}
.note-row:last-child{border-bottom:0}
.note-row:hover{background:rgba(255,255,255,.03);padding-left:28px}
.note-idx{font-size:24px;font-weight:800;color:var(--mark);line-height:1.3;opacity:.9}
.note-row h3{font-size:17px;margin-bottom:8px}
.note-row p{color:var(--text-2);font-size:14px;line-height:1.8}
.side-card{
  border:1px solid var(--line);border-radius:var(--r-panel);background:var(--glass);
  padding:18px;position:relative;overflow:hidden;
}
.side-card::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,rgba(23,224,184,.6),rgba(23,224,184,0));
}
.side-card img{width:100%;aspect-ratio:16/12;object-fit:cover;border-radius:12px}
.side-card figcaption{margin-top:16px;color:var(--text-3);font-size:13px;line-height:1.75}
.side-card .side-title{color:var(--text);font-size:15px;font-weight:700;margin-bottom:8px}

/* ============ FAQ ============ */
.accordion-item{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);
  margin-bottom:12px;overflow:hidden;
}
.accordion-item:last-child{margin-bottom:0}
.accordion-button{
  position:relative;width:100%;text-align:left;background:transparent;
  color:var(--text);font-size:17px;font-weight:600;line-height:1.5;
  padding:20px 56px 20px 24px;border:0;box-shadow:none;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.accordion-button:not(.collapsed){color:var(--primary);background:transparent}
.accordion-button::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:2px;
  background:var(--mark);opacity:0;transition:opacity .24s var(--ease);
}
.accordion-button:not(.collapsed)::before{opacity:1}
.accordion-button::after{
  content:"";position:absolute;right:26px;top:50%;width:9px;height:9px;
  margin:0;border-right:2px solid var(--text-3);border-bottom:2px solid var(--text-3);
  background-image:none;transform:translateY(-70%) rotate(45deg);
  transition:transform .24s var(--ease),border-color .24s var(--ease);
}
.accordion-button:not(.collapsed)::after{border-color:var(--primary);transform:translateY(-30%) rotate(225deg)}
.accordion-button:hover{color:var(--primary)}
.accordion-body{
  padding:0 24px 22px;color:var(--text-2);font-size:15px;line-height:1.85;
}
.accordion-body p+p{margin-top:10px}

/* ============ CTA 带 ============ */
.cta-band{
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:linear-gradient(180deg,rgba(23,224,184,.06),rgba(255,255,255,.02));
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  padding:48px 0;
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap}
.cta-inner h2{font-size:clamp(1.35rem,2vw,1.75rem);margin-bottom:10px}
.cta-inner p{color:var(--text-2);font-size:15px;max-width:56ch}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ============ 页脚 ============ */
.site-footer{border-top:1px solid var(--line);background:rgba(10,18,32,.62);padding-top:64px}
.foot-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.2fr;gap:32px}
.foot-brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:17px;margin-bottom:14px;color:var(--text)}
.foot-brand .brand-mark{width:30px;height:30px;font-size:15px;border-radius:9px}
.site-footer p{color:var(--text-2);font-size:14px;line-height:1.85;max-width:36ch}
.foot-title{font-size:13px;letter-spacing:1px;color:var(--text-3);margin-bottom:16px}
.site-footer ul{list-style:none;display:flex;flex-direction:column;gap:10px}
.site-footer ul li{color:var(--text-2);font-size:14px}
.site-footer ul li a{color:var(--text-2);font-size:14px}
.site-footer ul li a:hover{color:var(--primary)}
.foot-bottom{
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  border-top:1px solid var(--line-soft);margin-top:48px;padding:20px 0 30px;
  color:var(--text-3);font-size:13px;
}

/* ============ 移动端抽屉 ============ */
.drawer{
  width:min(88vw,340px);
  background:rgba(8,14,24,.94);
  -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
  border-left:1px solid var(--line);color:var(--text);
}
.drawer .offcanvas-header{border-bottom:1px solid var(--line-soft);padding:18px 20px}
.drawer .offcanvas-body{padding:16px 20px}
.drawer-links{display:flex;flex-direction:column}
.drawer-links a{
  display:flex;align-items:center;height:52px;font-size:18px;
  color:rgba(234,242,250,.85);border-bottom:1px solid rgba(255,255,255,.05);
}
.drawer-links a.active{color:var(--primary)}
.drawer-foot{padding:16px 20px 24px;border-top:1px solid var(--line-soft)}
.drawer .btn-close{filter:invert(1) grayscale(1) brightness(1.9);opacity:.75}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .hero-grid{grid-template-columns:1.25fr 1fr;gap:32px}
  .split{grid-template-columns:1.3fr 1fr}
}
@media (max-width:991.98px){
  .nav-links{display:none}
  .menu-btn{display:grid}
  .nav-inner{height:64px}
  .page-hero{padding:112px 0 52px}
  .hero-grid{grid-template-columns:1fr;gap:28px}
  .hero-visual{order:-1}
  .hero-visual img{aspect-ratio:16/10}
  .section{padding:64px 0}
  .section-tight{padding:44px 0 64px}
  .split{grid-template-columns:1fr}
  .timeline::before{left:7px}
  .tl-item,.tl-item:nth-child(even){width:100%;margin-left:0;padding:0 0 26px 40px}
  .tl-item .tl-dot{left:1px;right:auto;top:28px}
  .tl-item:nth-child(even) .tl-dot{left:1px;right:auto}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767.98px){
  .container{padding-inline:18px}
  .brand-text{font-size:15px}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .sec-head{margin-bottom:32px}
}
@media (max-width:575.98px){
  .page-hero{padding:100px 0 44px}
  .tl-item,.tl-item:nth-child(even){padding-left:32px}
  .tl-num{font-size:48px;bottom:-12px}
  .tl-card{padding:20px 18px 18px}
  .note-row{grid-template-columns:40px 1fr;gap:12px;padding:18px}
  .note-idx{font-size:20px}
  .foot-grid{grid-template-columns:1fr;gap:24px}
  .cta-actions{width:100%}
  .cta-actions .btn-main,.cta-actions .btn-ghost{flex:1 1 auto}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
}

/* roulang page: category3 */
:root{
  --bg:#05080F;
  --panel:#0A1220;
  --card:#101B2C;
  --glass:rgba(255,255,255,.045);
  --line:rgba(255,255,255,.09);
  --line-strong:rgba(255,255,255,.16);
  --brand:#17E0B8;
  --brand-dark:#0AA88A;
  --amber:#FFB84D;
  --text:#EAF2FA;
  --text-2:#A9BCD0;
  --text-3:#6E8299;
  --danger:#FF5C7A;
  --r-sm:8px;
  --r-btn:10px;
  --r-card:16px;
  --r-lg:22px;
  --ease:cubic-bezier(.2,.7,.3,1);
  --bs-body-bg:#05080F;
  --bs-body-color:#EAF2FA;
  --bs-border-color:rgba(255,255,255,.09);
  --bs-link-color:#17E0B8;
  --bs-link-hover-color:#5BF0D2;
  --bs-primary:#17E0B8;
  --bs-emphasis-color:#EAF2FA;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:
    linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px);
  background-size:32px 32px;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:#5BF0D2;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}

.container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}

/* ===== header ===== */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:1000;
  background:rgba(6,10,18,.32);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.08);
  transition:background .26s var(--ease),box-shadow .26s var(--ease),border-color .26s var(--ease);
}
.site-header.is-stuck{
  background:rgba(6,10,18,.88);
  backdrop-filter:blur(18px) saturate(150%);
  -webkit-backdrop-filter:blur(18px) saturate(150%);
  border-bottom-color:rgba(255,255,255,.13);
  box-shadow:0 12px 34px -22px rgba(0,0,0,.95);
}
.nav-wrap{
  display:flex;
  align-items:center;
  gap:24px;
  height:72px;
  transition:height .26s var(--ease);
}
.site-header.is-stuck .nav-wrap{height:68px;}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  color:var(--text);
  font-weight:600;
  font-size:17px;
  letter-spacing:.2px;
  white-space:nowrap;
}
.brand:hover{color:var(--text);}
.brand-mark{
  display:grid;
  place-items:center;
  width:34px;height:34px;
  border-radius:10px;
  background:linear-gradient(135deg,var(--brand),var(--brand-dark));
  color:#04160F;
  font-weight:800;
  font-size:16px;
  flex:0 0 auto;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:26px;
  margin:0 auto;
}
.nav-links a{
  position:relative;
  font-size:15px;
  color:rgba(234,242,250,.85);
  padding:6px 2px;
  white-space:nowrap;
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:0;
  width:0;
  height:2px;
  background:var(--brand);
  transform:translateX(-50%);
  transition:width .18s var(--ease);
}
.nav-links a:hover,
.nav-links a.active{color:#EAF2FA;}
.nav-links a:hover::after,
.nav-links a.active::after{width:100%;}
.nav-actions{
  display:flex;
  align-items:center;
  gap:12px;
  margin-left:auto;
}
.icon-btn{
  width:40px;height:40px;
  border-radius:10px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
  color:var(--text-2);
  display:grid;
  place-items:center;
  cursor:pointer;
  transition:all .2s var(--ease);
}
.icon-btn:hover{color:var(--brand);border-color:rgba(23,224,184,.4);background:rgba(23,224,184,.06);}
.search-wrap{position:relative;}
.search-pop{
  position:absolute;
  right:0;
  top:52px;
  width:240px;
  padding:16px;
  border-radius:14px;
  background:rgba(10,18,32,.96);
  border:1px solid var(--line-strong);
  box-shadow:0 24px 50px -28px rgba(0,0,0,.95);
  backdrop-filter:blur(14px);
  z-index:1200;
}
.search-pop p{
  margin:0 0 10px;
  font-size:12px;
  letter-spacing:1px;
  color:var(--text-3);
}
.search-pop a{
  display:block;
  font-size:14.5px;
  color:var(--text-2);
  padding:8px 0;
  border-bottom:1px solid var(--line);
}
.search-pop a:last-child{border-bottom:0;}
.search-pop a:hover{color:var(--brand);}

.btn-main{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:0 20px;
  border:0;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  color:#04160F;
  background:linear-gradient(135deg,var(--brand),var(--brand-dark));
  box-shadow:inset 0 1px 0 rgba(255,255,255,.25),0 0 24px -6px rgba(23,224,184,.65);
  cursor:pointer;
  transition:all .22s var(--ease);
}
.btn-main:hover{
  color:#04160F;
  transform:translateY(-1px);
  filter:brightness(1.06);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.3),0 0 34px -4px rgba(23,224,184,.9);
}
.btn-main:active{transform:translateY(0);}
.btn-ghost{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:0 20px;
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  background:transparent;
  color:var(--text);
  font-size:15px;
  font-weight:500;
  cursor:pointer;
  transition:all .22s var(--ease);
}
.btn-ghost:hover{
  border-color:rgba(23,224,184,.45);
  color:var(--text);
  transform:translateY(-1px);
}
.burger{
  display:none;
  width:44px;height:44px;
  border-radius:10px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
  cursor:pointer;
}
.burger span{
  display:block;
  width:18px;
  height:2px;
  border-radius:2px;
  background:var(--text);
}

/* ===== offcanvas ===== */
.offcanvas.mobile-nav{
  --bs-offcanvas-bg:rgba(6,10,18,.96);
  --bs-offcanvas-color:var(--text);
  --bs-offcanvas-width:320px;
  border-left:1px solid var(--line);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
}
.offcanvas-header{border-bottom:1px solid var(--line);padding:18px 20px;}
.offcanvas .btn-close{filter:invert(1) grayscale(1) brightness(1.6);opacity:.75;}
.offcanvas-body{padding:12px 20px 28px;display:flex;flex-direction:column;}
.m-link{
  display:flex;
  align-items:center;
  height:52px;
  font-size:18px;
  color:var(--text-2);
  border-bottom:1px solid var(--line);
}
.m-link.active{color:var(--brand);}
.m-link:hover{color:var(--brand);}
.m-cta{margin-top:24px;}

/* ===== hero ===== */
.hero{
  position:relative;
  overflow:hidden;
  padding:132px 0 72px;
  min-height:380px;
  background-image:
    linear-gradient(180deg,rgba(5,8,15,.80) 0%,rgba(5,8,15,.92) 55%,var(--bg) 100%),
    url('/assets/images/backpic/back-3.png');
  background-size:cover;
  background-position:center;
}
.hero-glow{
  position:absolute;
  top:-180px;
  left:50%;
  transform:translateX(-50%);
  width:1000px;
  height:520px;
  background:radial-gradient(circle at 50% 50%,rgba(23,224,184,.18),transparent 65%);
  pointer-events:none;
}
.crumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-3);
  margin-bottom:18px;
}
.crumb a{color:var(--text-2);}
.crumb a:hover{color:var(--brand);}
.status-chip{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:5px 12px;
  border-radius:999px;
  background:rgba(23,224,184,.1);
  border:1px solid rgba(23,224,184,.25);
  color:var(--brand);
  font-size:12.5px;
  margin-bottom:16px;
}
.dot{
  width:8px;height:8px;
  border-radius:50%;
  background:var(--brand);
  animation:pulse 2s infinite;
}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(23,224,184,.5);}
  70%{box-shadow:0 0 0 10px rgba(23,224,184,0);}
  100%{box-shadow:0 0 0 0 rgba(23,224,184,0);}
}
.hero h1{
  font-size:clamp(1.9rem,3.4vw,2.7rem);
  line-height:1.2;
  font-weight:700;
  letter-spacing:-.5px;
  margin:0 0 16px;
}
.hero-lead{
  color:var(--text-2);
  font-size:17px;
  line-height:1.8;
  max-width:620px;
  margin:0;
}
.hero-media{
  border-radius:var(--r-card);
  border:1px solid var(--line);
  background:var(--glass);
  padding:10px;
  box-shadow:0 30px 70px -46px rgba(0,0,0,.95);
}
.hero-media img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  border-radius:12px;
}

/* ===== sections ===== */
.section{
  position:relative;
  padding:88px 0;
}
.section-alt{
  background:rgba(10,18,32,.55);
  border-top:1px solid rgba(255,255,255,.06);
  border-bottom:1px solid rgba(255,255,255,.06);
}
.section-tight{padding:44px 0;}
.sec-head{
  max-width:740px;
  margin-bottom:40px;
}
.sec-head h2{
  font-size:clamp(1.5rem,2.4vw,2rem);
  line-height:1.3;
  margin:0 0 12px;
  font-weight:700;
}
.sec-head p{
  color:var(--text-2);
  margin:0;
  font-size:16px;
}

/* ===== path cards ===== */
.p-card{
  position:relative;
  height:100%;
  padding:28px;
  border-radius:var(--r-card);
  background:var(--glass);
  border:1px solid var(--line);
  overflow:hidden;
  transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.p-card::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(23,224,184,.6),transparent);
  opacity:.75;
}
.p-card:hover{
  transform:translateY(-3px);
  border-color:rgba(23,224,184,.35);
  box-shadow:0 0 0 1px rgba(23,224,184,.18),0 18px 40px -24px rgba(0,0,0,.9);
}
.p-icon{
  width:48px;height:48px;
  border-radius:12px;
  display:grid;
  place-items:center;
  background:rgba(23,224,184,.1);
  border:1px solid rgba(23,224,184,.22);
  color:var(--brand);
  margin-bottom:20px;
}
.p-card h3{
  font-size:1.125rem;
  line-height:1.4;
  margin:0 0 10px;
  font-weight:600;
}
.p-card p{
  color:var(--text-2);
  font-size:15px;
  line-height:1.75;
  margin:0 0 18px;
}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;}
.tag{
  font-size:12px;
  padding:4px 10px;
  border-radius:999px;
  background:rgba(23,224,184,.12);
  color:var(--brand);
  white-space:nowrap;
}
.tag.neutral{
  background:transparent;
  border:1px solid var(--line);
  color:var(--text-3);
}

/* ===== status band ===== */
.status-band{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:28px;
  padding:24px 28px;
  border-radius:var(--r-card);
  background:var(--glass);
  border:1px solid var(--line);
}
.st-item{
  display:flex;
  align-items:center;
  gap:12px;
  min-width:180px;
}
.st-dot{
  width:10px;height:10px;
  border-radius:50%;
  background:var(--brand);
  flex:0 0 auto;
  box-shadow:0 0 0 4px rgba(23,224,184,.14);
}
.st-dot.warn{background:var(--amber);box-shadow:0 0 0 4px rgba(255,184,77,.14);}
.st-item strong{
  display:block;
  font-size:15px;
  font-weight:600;
  line-height:1.4;
}
.st-item span{
  display:block;
  font-size:13px;
  color:var(--text-3);
  font-variant-numeric:tabular-nums;
}
.link-arrow{
  margin-left:auto;
  font-size:14.5px;
  font-weight:500;
  white-space:nowrap;
}
.link-arrow:hover{text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:2px;}

/* ===== checklist ===== */
.media-frame{
  border-radius:var(--r-card);
  border:1px solid var(--line);
  background:var(--glass);
  padding:10px;
}
.media-frame img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  border-radius:12px;
}
.check-list{list-style:none;margin:0;padding:0;}
.check-list li{
  display:flex;
  gap:18px;
  padding:20px 18px;
  border-radius:14px;
  border:1px solid transparent;
  border-bottom:1px solid var(--line);
  transition:background .24s var(--ease),transform .24s var(--ease),border-color .24s var(--ease);
}
.check-list li:hover{
  background:rgba(255,255,255,.03);
  border-color:rgba(23,224,184,.2);
  transform:translateX(4px);
}
.check-list .num{
  font-family:Consolas,SFMono-Regular,Menlo,monospace;
  font-variant-numeric:tabular-nums;
  font-size:24px;
  font-weight:700;
  color:var(--text-3);
  line-height:1.1;
  min-width:42px;
  transition:color .24s var(--ease);
}
.check-list li:hover .num{color:var(--brand);}
.check-list h3{
  font-size:17px;
  margin:0 0 6px;
  font-weight:600;
}
.check-list p{
  margin:0;
  color:var(--text-2);
  font-size:15px;
  line-height:1.75;
}

/* ===== faq ===== */
.faq-wrap{max-width:900px;margin:0 auto;}
.accordion{
  --bs-accordion-bg:transparent;
  --bs-accordion-color:var(--text);
  --bs-accordion-border-color:transparent;
  --bs-accordion-btn-color:var(--text);
  --bs-accordion-btn-bg:transparent;
  --bs-accordion-active-color:var(--brand);
  --bs-accordion-active-bg:rgba(23,224,184,.07);
  --bs-accordion-btn-focus-box-shadow:none;
  --bs-accordion-border-radius:14px;
  --bs-accordion-inner-border-radius:14px;
}
.accordion-item{
  background:var(--glass);
  border:1px solid var(--line) !important;
  border-radius:14px !important;
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color .24s var(--ease);
}
.accordion-item:hover{border-color:rgba(23,224,184,.28) !important;}
.accordion-header{margin:0;}
.accordion-button{
  position:relative;
  font-size:17px;
  font-weight:600;
  padding:20px 22px;
  background:transparent !important;
  box-shadow:none !important;
  color:var(--text);
}
.accordion-button::before{
  content:"";
  position:absolute;
  left:0;
  top:14px;
  bottom:14px;
  width:3px;
  border-radius:0 3px 3px 0;
  background:var(--amber);
  opacity:0;
  transition:opacity .22s var(--ease);
}
.accordion-button:not(.collapsed)::before{opacity:1;}
.accordion-button:not(.collapsed){color:var(--brand);}
.accordion-button::after{
  filter:invert(88%) sepia(12%) saturate(400%) hue-rotate(120deg);
  opacity:.75;
}
.accordion-body{
  padding:0 22px 22px;
  color:var(--text-2);
  font-size:15.5px;
  line-height:1.8;
}

/* ===== cta band ===== */
.cta-band{
  padding:0 0 88px;
  position:relative;
}
.cta-inner{
  position:relative;
  overflow:hidden;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  padding:38px;
  border-radius:var(--r-lg);
  background:var(--glass);
  border:1px solid var(--line);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
}
.cta-inner::after{
  content:"";
  position:absolute;
  right:-80px;
  top:-90px;
  width:320px;
  height:320px;
  background:radial-gradient(circle,rgba(23,224,184,.16),transparent 70%);
  pointer-events:none;
}
.cta-inner h2{
  font-size:clamp(1.375rem,2vw,1.75rem);
  margin:0 0 10px;
  font-weight:700;
}
.cta-inner p{
  margin:0;
  color:var(--text-2);
  max-width:520px;
}
.cta-form{
  position:relative;
  z-index:1;
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  align-items:center;
}
.form-control-glass{
  min-height:44px;
  min-width:240px;
  padding:0 16px;
  border-radius:var(--r-btn);
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  color:var(--text);
  font-size:15px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.form-control-glass::placeholder{color:var(--text-3);}
.form-control-glass:focus{
  outline:none;
  border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(23,224,184,.15);
}
.form-tip{
  width:100%;
  margin:0;
  font-size:13px;
  color:var(--text-3);
  min-height:20px;
}

/* ===== footer ===== */
.site-footer{
  position:relative;
  z-index:1;
  background:#04070D;
  border-top:1px solid var(--line);
  padding:64px 0 0;
}
.foot-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:32px;
  padding-bottom:44px;
}
.foot-brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-weight:600;
  font-size:16px;
  margin-bottom:14px;
}
.foot-title{
  font-size:13px;
  letter-spacing:1px;
  color:var(--text-3);
  margin-bottom:16px;
}
.site-footer ul{list-style:none;margin:0;padding:0;}
.site-footer li{
  margin-bottom:10px;
  color:var(--text-2);
  font-size:14.5px;
  line-height:1.7;
}
.site-footer a{color:var(--text-2);font-size:14.5px;}
.site-footer a:hover{color:var(--brand);}
.site-footer p{
  margin:0;
  color:var(--text-2);
  font-size:14.5px;
  max-width:360px;
  line-height:1.75;
}
.foot-bottom{
  display:flex;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:16px;
  border-top:1px solid var(--line);
  padding:20px 0 28px;
  color:var(--text-3);
  font-size:13px;
}

/* ===== responsive ===== */
@media (max-width:1399.98px){
  .container{max-width:1180px;}
}
@media (max-width:1199.98px){
  .nav-links{gap:20px;}
  .nav-links a{font-size:14.5px;}
  .section{padding:76px 0;}
}
@media (max-width:991.98px){
  .nav-links{display:none;}
  .burger{display:flex;}
  .section{padding:64px 0;}
  .section-tight{padding:36px 0;}
  .hero{padding:112px 0 56px;}
  .hero-lead{font-size:16px;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .check-list li:hover{transform:none;}
  .status-band{gap:20px;padding:22px;}
  .link-arrow{margin-left:0;}
}
@media (max-width:767.98px){
  .container{padding-left:16px;padding-right:16px;}
  .nav-actions .btn-main{display:none;}
  .section{padding:56px 0;}
  .hero{padding:96px 0 48px;}
  .sec-head{margin-bottom:28px;}
  .p-card{padding:22px;}
  .cta-inner{padding:26px;flex-direction:column;align-items:flex-start;}
  .cta-form{width:100%;}
  .form-control-glass{min-width:0;width:100%;}
  .cta-form .btn-main,
  .cta-form .btn-ghost{flex:1 1 auto;}
  .foot-bottom{flex-direction:column;gap:8px;}
}
@media (max-width:575.98px){
  .brand-text{font-size:15px;}
  .hero h1{font-size:1.7rem;}
  .check-list .num{font-size:20px;min-width:32px;}
  .check-list li{padding:16px 12px;gap:12px;}
  .accordion-button{font-size:15.5px;padding:18px 16px;}
  .accordion-body{padding:0 16px 18px;}
  .foot-grid{grid-template-columns:1fr;}
  .status-band{flex-direction:column;align-items:flex-start;}
}

@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  html{scroll-behavior:auto;}
}