/* roulang page: index */
/* ===================== 设计变量 ===================== */
:root{
  --ink-900:#05070F;
  --ink-800:#070B14;
  --ink-700:#0A0E1A;
  --primary:#7B5CFF;
  --primary-soft:rgba(123,92,255,.16);
  --accent:#00E0C6;
  --accent-soft:rgba(0,224,198,.14);
  --hot:#FF4D9D;
  --text:#EDF1FF;
  --text-2:#A9B4D0;
  --text-3:#66739A;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --glass:rgba(255,255,255,.06);
  --glass-2:rgba(255,255,255,.09);
  --ok:#2BD9A0;
  --warn:#FFB020;
  --err:#FF5C7A;
  --r-card:18px;
  --r-lg:24px;
  --r-btn:12px;
  --r-img:14px;
  --r-pill:999px;
  --shadow-card:0 20px 48px rgba(0,0,0,.5);
  --shadow-soft:0 12px 32px rgba(0,0,0,.35);
  --glow-primary:0 0 24px rgba(123,92,255,.45);
  --glow-primary-hi:0 0 36px rgba(123,92,255,.7);
  --glow-accent:0 0 20px rgba(0,224,198,.32);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"Rajdhani","Barlow Condensed","PingFang SC",system-ui,sans-serif;
  --ease:cubic-bezier(.22,.61,.36,1);
}

/* ===================== 基础重置 ===================== */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:88px;}
body{
  margin:0;
  background:var(--ink-900);
  color:var(--text);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding-left:0;list-style:none;}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease),opacity .2s var(--ease);}
img{display:block;max-width:100%;height:auto;}
button{font-family:inherit;font-size:inherit;color:inherit;border:0;background:none;cursor:pointer;}
input,textarea{font-family:inherit;font-size:inherit;color:inherit;}
::selection{background:rgba(123,92,255,.45);color:#fff;}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px;}

/* ===================== 容器与排版 ===================== */
.container-xl{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}
@media (min-width:1400px){.container-xl{max-width:1280px;}}
@media (max-width:768px){.container-xl{padding-left:18px;padding-right:18px;}}

.section{padding:96px 0;position:relative;}
.section--alt{background:var(--ink-700);}
.section--deep{background:var(--ink-800);}
@media (max-width:768px){.section{padding:56px 0;}}

.sec-head{max-width:760px;margin-bottom:48px;}
.sec-head--center{margin-left:auto;margin-right:auto;text-align:center;}
.sec-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-num);
  font-size:13px;font-weight:600;letter-spacing:.16em;text-transform:uppercase;
  color:var(--accent);
  padding:5px 12px;border-radius:8px;
  background:var(--accent-soft);
  border:1px solid rgba(0,224,198,.22);
  margin-bottom:18px;
}
h2.sec-title{
  font-size:30px;line-height:1.25;font-weight:700;letter-spacing:.01em;
  margin-bottom:14px;
}
h3{font-size:20px;line-height:1.35;font-weight:600;}
.sec-sub{color:var(--text-2);font-size:16px;line-height:1.8;}
@media (max-width:768px){
  h2.sec-title{font-size:24px;}
  h3{font-size:18px;}
  .sec-head{margin-bottom:32px;}
}

/* ===================== 按钮 ===================== */
.btn-main,.btn-ghost,.btn-text{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  min-height:48px;padding:0 26px;
  font-size:15px;font-weight:600;letter-spacing:.02em;
  border-radius:var(--r-pill);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
  white-space:nowrap;
}
.btn-main{
  color:#fff;
  background:linear-gradient(100deg,var(--primary) 0%,#5f7cff 55%,var(--accent) 140%);
  box-shadow:var(--glow-primary);
}
.btn-main:hover{transform:translateY(-2px);box-shadow:var(--glow-primary-hi);color:#fff;}
.btn-main:active{transform:translateY(0);box-shadow:0 0 14px rgba(123,92,255,.4);}
.btn-main.is-loading{opacity:.72;pointer-events:none;}
.btn-main[disabled]{opacity:.45;pointer-events:none;box-shadow:none;}
.btn-ghost{
  color:var(--text);
  background:var(--glass);
  border:1px solid var(--line-strong);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
}
.btn-ghost:hover{border-color:rgba(0,224,198,.6);color:var(--accent);transform:translateY(-2px);}
.btn-ghost[disabled]{opacity:.45;pointer-events:none;}
.btn-text{
  min-height:auto;padding:0;color:var(--accent);font-size:14px;background:none;box-shadow:none;
}
.btn-text i{transition:transform .2s var(--ease);}
.btn-text:hover{color:#7ff3e4;}
.btn-text:hover i{transform:translateX(4px);}
.btn-sm-main{min-height:40px;padding:0 18px;font-size:14px;border-radius:var(--r-btn);}

/* ===================== 导航 ===================== */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1030;
  height:72px;
  display:flex;align-items:center;
  background:rgba(5,7,15,.25);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid var(--line);
  transition:height .25s var(--ease),background .25s var(--ease),box-shadow .25s var(--ease);
}
.site-header.is-stuck{
  height:64px;
  background:rgba(5,7,15,.9);
  box-shadow:0 12px 32px rgba(0,0,0,.45);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;width:100%;}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:12px;
  background:rgba(123,92,255,.14);
  border:1px solid rgba(123,92,255,.3);
  box-shadow:0 0 18px rgba(123,92,255,.28);
}
.brand-text{font-size:18px;font-weight:700;letter-spacing:.02em;color:var(--text);}
.brand-text em{
  font-style:normal;
  font-family:var(--font-num);
  color:var(--accent);
  letter-spacing:.04em;
  margin:0 1px;
}
.brand:hover .brand-text{color:#fff;}

.main-nav{display:flex;align-items:center;gap:6px;}
.main-nav .nav-link{
  position:relative;
  padding:10px 14px;border-radius:10px;
  font-size:15px;color:var(--text-2);
  transition:color .2s var(--ease),background .2s var(--ease);
}
.main-nav .nav-link:hover{color:var(--text);background:rgba(255,255,255,.05);}
.main-nav .nav-link.active{color:var(--text);}
.main-nav .nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;
  background:var(--accent);box-shadow:0 0 10px rgba(0,224,198,.7);
}
.header-actions{display:flex;align-items:center;gap:10px;}
.icon-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:12px;
  color:var(--text-2);background:var(--glass);border:1px solid var(--line);
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.icon-btn:hover{color:var(--accent);border-color:rgba(0,224,198,.45);}
.nav-download{min-height:42px;padding:0 20px;font-size:14px;}

/* 移动端 offcanvas */
.offcanvas.offcanvas-end{
  width:min(88vw,340px);
  background:rgba(10,14,26,.96);
  backdrop-filter:blur(20px) saturate(140%);
  -webkit-backdrop-filter:blur(20px) saturate(140%);
  border-left:1px solid var(--line);
  color:var(--text);
}
.offcanvas .offcanvas-header{border-bottom:1px solid var(--line);padding:18px 20px;}
.offcanvas .btn-close{filter:invert(1) grayscale(1) brightness(2);opacity:.6;}
.offcanvas .offcanvas-body{padding:16px 20px 32px;}
.mobile-nav-list{display:flex;flex-direction:column;gap:6px;}
.mobile-nav-list a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:48px;padding:0 14px;border-radius:12px;
  color:var(--text-2);background:rgba(255,255,255,.03);
  border:1px solid transparent;
}
.mobile-nav-list a:hover,.mobile-nav-list a.active{
  color:var(--text);border-color:rgba(0,224,198,.35);background:rgba(0,224,198,.08);
}
.mobile-nav-list a i{font-size:12px;color:var(--text-3);}
.mobile-cta{margin-top:20px;display:flex;flex-direction:column;gap:12px;}
.mobile-cta .btn-main,.mobile-cta .btn-ghost{width:100%;}

@media (max-width:991.98px){
  .site-header{height:64px;}
  .brand-text{font-size:17px;}
  .nav-download{display:none;}
}

/* ===================== Hero ===================== */
.hero{
  position:relative;
  min-height:84vh;
  display:flex;align-items:center;
  padding:150px 0 96px;
  overflow:hidden;
  background:
    linear-gradient(95deg,rgba(5,7,15,.97) 0%,rgba(5,7,15,.86) 42%,rgba(5,7,15,.55) 100%),
    url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:80px 80px;
  opacity:.5;
  mask-image:radial-gradient(circle at 30% 40%,#000 0%,transparent 72%);
  -webkit-mask-image:radial-gradient(circle at 30% 40%,#000 0%,transparent 72%);
}
.hero::after{
  content:"";position:absolute;width:620px;height:620px;right:-160px;top:-120px;pointer-events:none;
  background:radial-gradient(circle,rgba(123,92,255,.28) 0%,transparent 66%);
  filter:blur(6px);
}
.hero .container-xl{position:relative;z-index:2;}
.hero-copy{max-width:560px;}
.hero-tag{
  display:inline-flex;align-items:center;gap:10px;
  padding:7px 14px;border-radius:var(--r-pill);
  background:var(--glass);border:1px solid var(--line-strong);
  font-size:13px;color:var(--text-2);margin-bottom:22px;
}
.hero-tag .dot{width:7px;height:7px;border-radius:50%;background:var(--ok);box-shadow:0 0 10px var(--ok);}
.hero h1{
  font-size:44px;line-height:1.22;font-weight:700;letter-spacing:.01em;
  margin-bottom:20px;
}
.hero h1 .hl{
  background:linear-gradient(96deg,var(--primary) 0%,var(--accent) 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-lead{color:var(--text-2);font-size:17px;line-height:1.85;margin-bottom:32px;max-width:520px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px;}
.hero-meta{
  display:flex;flex-wrap:wrap;gap:8px 20px;
  font-size:13px;color:var(--text-3);
}
.hero-meta span{display:inline-flex;align-items:center;gap:7px;}
.hero-meta i{color:var(--accent);font-size:12px;}

.hero-visual{position:relative;perspective:1400px;}
.hero-frame{
  position:relative;
  border-radius:var(--r-lg);
  padding:12px;
  background:linear-gradient(160deg,rgba(255,255,255,.12),rgba(255,255,255,.02));
  border:1px solid var(--line-strong);
  box-shadow:0 40px 90px rgba(0,0,0,.65),0 0 44px rgba(123,92,255,.28);
  transform:rotateY(-6deg) rotateX(2deg);
  overflow:hidden;
}
.hero-frame img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--r-img);
  background:var(--ink-700);
}
.hero-frame::after{
  content:"";position:absolute;inset:0;border-radius:var(--r-lg);pointer-events:none;
  background:linear-gradient(150deg,rgba(0,224,198,.14),transparent 46%);
}
.hero-float{
  position:absolute;left:-18px;bottom:36px;
  display:flex;align-items:center;gap:12px;
  padding:14px 18px;border-radius:var(--r-img);
  background:rgba(10,14,26,.82);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border:1px solid var(--line-strong);
  box-shadow:var(--shadow-card);
}
.hero-float .num{font-family:var(--font-num);font-size:24px;font-weight:700;color:var(--accent);line-height:1;}
.hero-float .txt{font-size:12px;color:var(--text-2);line-height:1.5;}

@media (max-width:991.98px){
  .hero{min-height:auto;padding:120px 0 72px;}
  .hero h1{font-size:34px;}
  .hero-copy{max-width:100%;}
  .hero-frame{transform:none;margin-top:44px;}
  .hero-float{left:8px;bottom:-18px;}
}
@media (max-width:576px){
  .hero{padding:104px 0 64px;}
  .hero h1{font-size:30px;}
  .hero-lead{font-size:16px;}
  .hero-actions .btn-main,.hero-actions .btn-ghost{width:100%;}
  .hero-frame{transform:none;}
}

/* ===================== 价值锚点带（2+1 非对称） ===================== */
.value-band{padding:80px 0;background:var(--ink-800);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
@media (max-width:768px){.value-band{padding:48px 0;}}
.value-main{
  height:100%;
  display:flex;flex-direction:column;justify-content:center;gap:16px;
  padding:38px;border-radius:var(--r-lg);
  background:linear-gradient(140deg,rgba(123,92,255,.16),rgba(0,224,198,.06) 70%),rgba(255,255,255,.03);
  border:1px solid var(--line-strong);
  box-shadow:var(--shadow-card);
}
.value-main .vi{
  width:52px;height:52px;border-radius:14px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--glass-2);border:1px solid rgba(0,224,198,.35);
  color:var(--accent);font-size:20px;
}
.value-main h3{font-size:24px;}
.value-main p{color:var(--text-2);font-size:16px;line-height:1.85;}
.value-mini{
  height:100%;
  padding:26px;border-radius:var(--r-card);
  background:var(--glass);
  border:1px solid var(--line);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  transition:transform .2s var(--ease),border-color .2s var(--ease);
}
.value-mini:hover{transform:translateY(-4px);border-color:rgba(0,224,198,.35);}
.value-mini .vi{
  width:42px;height:42px;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--primary-soft);border:1px solid rgba(123,92,255,.35);
  color:#b9a8ff;font-size:17px;margin-bottom:16px;
}
.value-mini h3{font-size:18px;margin-bottom:8px;}
.value-mini p{color:var(--text-2);font-size:14px;line-height:1.75;}

/* ===================== 功能轮播 ===================== */
.frame-carousel .carousel-inner{border-radius:var(--r-lg);overflow:hidden;}
.frame-slide{
  display:grid;grid-template-columns:1.15fr .85fr;
  gap:0;background:var(--ink-800);
  border:1px solid var(--line-strong);
  border-radius:var(--r-lg);
  overflow:hidden;
}
.frame-shot{position:relative;background:var(--ink-900);}
.frame-shot img{width:100%;height:100%;min-height:340px;object-fit:cover;aspect-ratio:16/10;}
.frame-shot::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,transparent 55%,rgba(7,11,20,.92) 100%);
}
.frame-text{
  padding:44px 40px;
  display:flex;flex-direction:column;justify-content:center;gap:14px;
}
.frame-step{
  font-family:var(--font-num);font-size:13px;font-weight:600;letter-spacing:.18em;
  color:var(--accent);
}
.frame-text h3{font-size:24px;}
.frame-text p{color:var(--text-2);font-size:15px;line-height:1.85;}
.frame-points{display:flex;flex-direction:column;gap:10px;margin-top:4px;}
.frame-points li{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--text-2);}
.frame-points i{color:var(--accent);font-size:12px;margin-top:6px;}

.frame-carousel .carousel-indicators{
  position:static;margin:26px 0 0;gap:12px;justify-content:center;
}
.frame-carousel .carousel-indicators [data-bs-target]{
  width:26px;height:3px;border-radius:2px;border:0;margin:0;
  background:rgba(255,255,255,.18);opacity:1;
  transition:background .2s var(--ease),box-shadow .2s var(--ease);
}
.frame-carousel .carousel-indicators .active{
  background:var(--accent);box-shadow:0 0 12px rgba(0,224,198,.8);
}
.frame-carousel .carousel-control-prev,
.frame-carousel .carousel-control-next{
  width:44px;height:44px;border-radius:50%;
  top:50%;transform:translateY(-50%);
  background:rgba(10,14,26,.7);
  border:1px solid var(--line-strong);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  opacity:1;
}
.frame-carousel .carousel-control-prev{left:18px;}
.frame-carousel .carousel-control-next{right:18px;}
.frame-carousel .carousel-control-prev:hover,
.frame-carousel .carousel-control-next:hover{border-color:rgba(0,224,198,.6);}
.frame-carousel .carousel-control-prev-icon,
.frame-carousel .carousel-control-next-icon{width:16px;height:16px;}

@media (max-width:991.98px){
  .frame-slide{grid-template-columns:1fr;}
  .frame-shot img{min-height:220px;}
  .frame-shot::after{background:linear-gradient(180deg,transparent 55%,rgba(7,11,20,.92) 100%);}
  .frame-text{padding:28px 24px;}
  .frame-text h3{font-size:20px;}
  .frame-carousel .carousel-control-prev,
  .frame-carousel .carousel-control-next{display:none;}
}

/* ===================== 系统要求 ===================== */
.spec-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-bottom:32px;}
.spec-card{
  padding:24px;border-radius:var(--r-card);
  background:var(--glass);border:1px solid var(--line);
  transition:transform .2s var(--ease),border-color .2s var(--ease);
}
.spec-card:hover{transform:translateY(-4px);border-color:rgba(0,224,198,.32);}
.spec-card .si{
  width:40px;height:40px;border-radius:11px;display:inline-flex;align-items:center;justify-content:center;
  background:var(--accent-soft);border:1px solid rgba(0,224,198,.28);color:var(--accent);
  font-size:16px;margin-bottom:14px;
}
.spec-card h3{font-size:16px;margin-bottom:6px;}
.spec-card .val{font-family:var(--font-num);font-size:15px;color:var(--text-2);letter-spacing:.02em;}
@media (max-width:991.98px){.spec-grid{grid-template-columns:repeat(2,1fr);}}
@media (max-width:576px){.spec-grid{grid-template-columns:1fr;}}

.compare-wrap{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.compare-col{
  padding:30px;border-radius:var(--r-card);
  background:rgba(255,255,255,.03);border:1px solid var(--line);
}
.compare-col.recommend{
  background:linear-gradient(150deg,rgba(123,92,255,.14),rgba(0,224,198,.05));
  border-color:rgba(123,92,255,.4);
  box-shadow:var(--shadow-soft);
}
.compare-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:18px;padding-bottom:14px;border-bottom:1px solid var(--line);}
.compare-head h3{font-size:18px;}
.badge-soft{
  display:inline-flex;align-items:center;
  height:24px;padding:0 10px;border-radius:8px;
  font-size:12px;font-weight:600;
  background:var(--glass-2);border:1px solid var(--line-strong);color:var(--text-2);
}
.badge-hot{background:rgba(255,77,157,.14);border-color:rgba(255,77,157,.4);color:#ff8dc1;}
.compare-list{display:flex;flex-direction:column;gap:12px;}
.compare-list li{display:flex;justify-content:space-between;gap:16px;font-size:14px;color:var(--text-2);}
.compare-list li span:last-child{font-family:var(--font-num);color:var(--text);letter-spacing:.02em;}
@media (max-width:768px){.compare-wrap{grid-template-columns:1fr;}}

/* ===================== 评价墙 ===================== */
.review-wall{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start;}
.review-card{
  padding:26px;border-radius:var(--r-card);
  background:var(--glass);border:1px solid var(--line);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow-soft);
  transition:transform .2s var(--ease),border-color .2s var(--ease);
}
.review-card:hover{transform:translateY(-4px);border-color:rgba(0,224,198,.32);}
.review-wall > .review-card:nth-child(3n+2){transform:translateY(30px);}
.review-wall > .review-card:nth-child(3n+2):hover{transform:translateY(26px);}
.review-card.tall p{font-size:16px;}
.stars{display:flex;gap:4px;color:var(--hot);font-size:13px;margin-bottom:14px;text-shadow:0 0 12px rgba(255,77,157,.45);}
.review-card p{color:var(--text-2);font-size:15px;line-height:1.8;margin-bottom:18px;}
.review-user{display:flex;align-items:center;gap:12px;padding-top:16px;border-top:1px solid var(--line);}
.avatar{
  width:38px;height:38px;border-radius:50%;flex-shrink:0;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:600;color:#fff;
  background:linear-gradient(140deg,var(--primary),var(--accent));
}
.review-user .name{font-size:14px;color:var(--text);}
.review-user .role{font-size:12px;color:var(--text-3);}
@media (max-width:991.98px){
  .review-wall{grid-template-columns:repeat(2,1fr);}
  .review-wall > .review-card:nth-child(3n+2){transform:none;}
  .review-wall > .review-card:nth-child(3n+2):hover{transform:translateY(-4px);}
}
@media (max-width:576px){.review-wall{grid-template-columns:1fr;}}

/* ===================== 下载区 ===================== */
.download-panel{
  padding:48px;border-radius:var(--r-lg);
  background:linear-gradient(150deg,rgba(123,92,255,.15),rgba(0,224,198,.05) 68%),rgba(255,255,255,.03);
  border:1px solid var(--line-strong);
  box-shadow:var(--shadow-card);
}
.platform-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;}
.platform-btn{
  display:flex;align-items:center;gap:14px;
  min-height:64px;padding:14px 18px;
  border-radius:var(--r-btn);
  background:rgba(255,255,255,.05);
  border:1px solid var(--line-strong);
  transition:transform .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.platform-btn:hover{transform:translateY(-3px);border-color:rgba(0,224,198,.55);background:rgba(0,224,198,.07);}
.platform-btn i{font-size:22px;color:var(--accent);width:26px;text-align:center;}
.platform-btn .pb-name{font-size:15px;font-weight:600;line-height:1.3;}
.platform-btn .pb-note{font-size:12px;color:var(--text-3);}
.platform-btn .pb-arrow{margin-left:auto;font-size:12px;color:var(--text-3);transition:transform .2s var(--ease);}
.platform-btn:hover .pb-arrow{transform:translateX(4px);color:var(--accent);}

.qr-block{
  display:flex;flex-direction:column;align-items:center;gap:14px;
  padding:26px;border-radius:var(--r-card);
  background:rgba(5,7,15,.55);
  border:1px solid var(--line);
}
.qr-code{
  width:148px;height:148px;border-radius:14px;background:#fff;padding:10px;
  position:relative;
}
.qr-inner{
  width:100%;height:100%;
  background-image:
    linear-gradient(45deg,#05070F 25%,transparent 25%,transparent 75%,#05070F 75%),
    linear-gradient(45deg,#05070F 25%,transparent 25%,transparent 75%,#05070F 75%);
  background-size:16px 16px;
  background-position:0 0,8px 8px;
  border-radius:4px;
}
.qr-block .qr-tip{font-size:13px;color:var(--text-2);text-align:center;}

.build-info{
  margin-top:26px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px 28px;
  font-size:13px;color:var(--text-3);
}
.build-info span{display:inline-flex;align-items:center;gap:8px;}
.build-info strong{font-family:var(--font-num);font-size:14px;color:var(--text-2);font-weight:600;letter-spacing:.03em;}
@media (max-width:991.98px){
  .download-panel{padding:30px 22px;}
  .platform-grid{grid-template-columns:repeat(2,1fr);}
  .qr-block{margin-top:24px;}
}
@media (max-width:576px){
  .platform-grid{grid-template-columns:1fr;}
}

/* ===================== 最新信息 ===================== */
.filter-tabs{
  display:flex;gap:10px;flex-wrap:wrap;margin-bottom:32px;
}
.filter-tab{
  height:36px;padding:0 16px;border-radius:var(--r-pill);
  font-size:14px;color:var(--text-2);
  background:var(--glass);border:1px solid var(--line);
  transition:all .2s var(--ease);
}
.filter-tab:hover{color:var(--text);border-color:var(--line-strong);}
.filter-tab.active{
  color:#04121a;font-weight:600;
  background:var(--accent);border-color:var(--accent);
  box-shadow:0 0 18px rgba(0,224,198,.35);
}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start;}
.news-card{
  display:flex;flex-direction:column;
  border-radius:var(--r-card);
  background:var(--glass);border:1px solid var(--line);
  overflow:hidden;
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.news-card:hover{transform:translateY(-4px);border-color:rgba(0,224,198,.35);box-shadow:var(--shadow-card);}
.news-cover{position:relative;display:block;overflow:hidden;background:var(--ink-700);}
.news-cover img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .35s var(--ease);}
.news-card:hover .news-cover img{transform:scale(1.04);}
.news-badge{
  position:absolute;left:12px;top:12px;
  display:inline-flex;align-items:center;height:26px;padding:0 11px;
  border-radius:8px;font-size:12px;font-weight:600;
  color:var(--accent);background:rgba(5,7,15,.78);
  border:1px solid rgba(0,224,198,.35);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
}
.news-body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1;}
.news-title{font-size:17px;line-height:1.5;font-weight:600;}
.news-title a{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-title a:hover{color:var(--accent);}
.news-desc{
  color:var(--text-2);font-size:14px;line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--text-3);
}
.news-meta .btn-text{font-size:13px;}
.news-card.featured .news-cover img{aspect-ratio:16/9;}

.empty-state{
  grid-column:1/-1;
  display:flex;flex-direction:column;align-items:center;gap:16px;
  padding:64px 24px;border-radius:var(--r-lg);
  background:rgba(255,255,255,.03);border:1px dashed var(--line-strong);text-align:center;
}
.empty-state i{font-size:30px;color:var(--text-3);}
.empty-state p{color:var(--text-2);font-size:15px;}

.list-foot{margin-top:36px;display:flex;justify-content:center;}
@media (max-width:991.98px){.news-grid{grid-template-columns:repeat(2,1fr);}}
@media (max-width:576px){.news-grid{grid-template-columns:1fr;}}

/* ===================== FAQ ===================== */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:960px;margin:0 auto;}
.faq-item{
  border-radius:var(--r-card);overflow:hidden;
  background:var(--glass);border:1px solid var(--line);
  transition:border-color .2s var(--ease);
}
.faq-item:hover{border-color:rgba(0,224,198,.28);}
.faq-btn{
  width:100%;display:flex;align-items:center;gap:16px;
  padding:20px 24px;text-align:left;
  font-size:16px;font-weight:600;color:var(--text);
  background:none;border:0;
}
.faq-btn::after{
  content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;
  margin-left:auto;font-size:13px;color:var(--accent);
  transition:transform .25s var(--ease);
}
.faq-btn:not(.collapsed)::after{transform:rotate(45deg);}
.faq-item .accordion-body{
  padding:0 24px 22px 24px;color:var(--text-2);font-size:15px;line-height:1.85;
  border-left:3px solid var(--accent);
  margin-left:24px;padding-left:20px;
}
.faq-btn:focus{box-shadow:none;}
@media (max-width:576px){
  .faq-btn{padding:16px 18px;font-size:15px;}
  .faq-item .accordion-body{margin-left:18px;padding:0 18px 18px 16px;}
}

/* ===================== 页脚 ===================== */
.site-footer{background:var(--ink-800);border-top:1px solid var(--line);padding:72px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px;}
.footer-brand .brand{margin-bottom:18px;}
.footer-brand p{color:var(--text-3);font-size:14px;line-height:1.85;max-width:300px;}
.footer-col h4{font-size:15px;font-weight:600;color:var(--text);margin-bottom:18px;}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a{font-size:14px;color:var(--text-3);display:inline-flex;align-items:center;gap:8px;}
.footer-col a:hover{color:var(--accent);transform:translateX(2px);}
.footer-note{font-size:13px;color:var(--text-3);line-height:1.85;}
.footer-note strong{color:var(--text-2);font-weight:600;}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:22px 0;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--text-3);
}
.footer-bottom .links{display:flex;gap:20px;}
.footer-bottom .links a:hover{color:var(--accent);}
@media (max-width:991.98px){.footer-grid{grid-template-columns:1fr 1fr;gap:32px;}}
@media (max-width:576px){.footer-grid{grid-template-columns:1fr;padding-bottom:32px;} .site-footer{padding-top:48px;}}

/* ===================== 动效与可访问性 ===================== */
.reveal{opacity:0;transform:translateY(16px);}
.reveal.is-in{opacity:1;transform:translateY(0);transition:opacity .55s var(--ease),transform .55s var(--ease);}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;}
  *,*::before,*::after{transition-duration:.01ms !important;animation-duration:.01ms !important;}
}
.sr-only{
  position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;
  clip:rect(0,0,0,0);white-space:nowrap;border:0;
}

/* roulang page: article */
:root{
  --ink:#05070F;
  --ink-2:#0A0E1A;
  --ink-3:#070B14;
  --primary:#7B5CFF;
  --primary-soft:rgba(123,92,255,.16);
  --accent:#00E0C6;
  --accent-soft:rgba(0,224,198,.14);
  --hot:#FF4D9D;
  --text:#EDF1FF;
  --text-2:#A9B4D0;
  --text-3:#66739A;
  --line:rgba(255,255,255,.08);
  --line-2:rgba(255,255,255,.16);
  --ok:#2BD9A0;
  --warn:#FFB020;
  --err:#FF5C7A;
  --r-card:18px;
  --r-lg:24px;
  --r-btn:12px;
  --r-img:14px;
  --r-badge:8px;
  --sh-card:0 20px 48px rgba(0,0,0,.5);
  --sh-soft:0 12px 28px rgba(0,0,0,.35);
  --glow:0 0 24px rgba(123,92,255,.45);
  --glow-strong:0 0 34px rgba(123,92,255,.7);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --font-num:"Rajdhani","Barlow Condensed","Segoe UI",system-ui,sans-serif;
  --container:1200px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--ink);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .2s ease-out,transform .2s ease-out}
a:hover{color:var(--accent)}
button{font-family:inherit}
ul,ol{padding-left:1.2em}
h1,h2,h3,h4{margin:0;color:var(--text);line-height:1.25;font-weight:700}
p{margin:0 0 1em}
.container-xl{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}
.bg-layer{position:fixed;inset:0;pointer-events:none;z-index:0}
.bg-glow{
  position:absolute;top:-260px;left:50%;transform:translateX(-50%);
  width:1100px;height:760px;
  background:radial-gradient(closest-side,rgba(123,92,255,.28),rgba(5,7,15,0));
  filter:blur(6px);
}
.bg-grid{
  position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:64px 64px;
  opacity:.5;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),rgba(0,0,0,0) 62%);
}
.page{position:relative;z-index:1}

/* ============ 导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1040;
  background:rgba(5,7,15,.28);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.07);
  transition:background .25s ease-out,height .25s ease-out,box-shadow .25s ease-out;
}
.site-header.is-stuck{
  background:rgba(5,7,15,.92);
  backdrop-filter:blur(20px) saturate(150%);
  -webkit-backdrop-filter:blur(20px) saturate(150%);
  box-shadow:0 10px 30px rgba(0,0,0,.45);
}
.header-inner{
  height:72px;
  display:flex;align-items:center;gap:24px;
  transition:height .25s ease-out;
}
.site-header.is-stuck .header-inner{height:64px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{display:inline-flex;width:32px;height:32px;align-items:center;justify-content:center}
.brand-text{font-size:17px;font-weight:700;letter-spacing:.02em;color:var(--text)}
.brand-text em{font-style:normal;color:var(--accent);font-family:var(--font-num);letter-spacing:.06em}
.main-nav{flex:1 1 auto;display:flex;align-items:center;gap:6px;justify-content:center}
.main-nav .nav-link{
  position:relative;display:inline-flex;align-items:center;
  height:44px;padding:0 14px;border-radius:10px;
  color:var(--text-2);font-size:15px;white-space:nowrap;
}
.main-nav .nav-link:hover{color:var(--text);background:rgba(255,255,255,.05)}
.main-nav .nav-link.active{color:var(--text)}
.main-nav .nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:6px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),var(--accent));
}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.icon-btn{
  width:40px;height:40px;border-radius:12px;border:1px solid var(--line);
  background:rgba(255,255,255,.05);color:var(--text-2);
  display:inline-flex;align-items:center;justify-content:center;cursor:pointer;
  transition:all .2s ease-out;
}
.icon-btn:hover{color:var(--accent);border-color:rgba(0,224,198,.45)}
.icon-btn:focus-visible,.menu-toggle:focus-visible,a:focus-visible,button:focus-visible{
  outline:2px solid var(--accent);outline-offset:2px;
}
.menu-toggle{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:rgba(255,255,255,.05);color:var(--text);
  display:inline-flex;align-items:center;justify-content:center;cursor:pointer;
}
.glass-drawer{
  background:rgba(10,14,26,.94)!important;
  backdrop-filter:blur(20px) saturate(140%);
  border-left:1px solid var(--line);
  color:var(--text);
}
.glass-drawer .offcanvas-header{border-bottom:1px solid var(--line);padding:18px 20px}
.drawer-link{
  display:flex;align-items:center;min-height:44px;padding:0 12px;border-radius:12px;
  color:var(--text-2);font-size:15px;
}
.drawer-link:hover{background:rgba(255,255,255,.06);color:var(--text)}
.drawer-link.active{
  color:var(--text);background:var(--primary-soft);
  border:1px solid rgba(123,92,255,.4);
}
.drawer-foot{margin-top:18px;padding-top:18px;border-top:1px solid var(--line);font-size:13px;color:var(--text-3)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:all .2s ease-out;white-space:nowrap;
}
.btn-primary{
  color:#fff;border-radius:999px;
  background:linear-gradient(90deg,var(--primary),var(--accent));
  box-shadow:var(--glow);
}
.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:var(--glow-strong)}
.btn-ghost{
  color:var(--text);border-color:var(--line-2);
  background:rgba(255,255,255,.05);
}
.btn-ghost:hover{color:var(--accent);border-color:rgba(0,224,198,.55);transform:translateY(-2px)}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn.is-loading{opacity:.7;pointer-events:none}
.btn[disabled],.btn:disabled{opacity:.45;pointer-events:none;box-shadow:none}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--accent);font-weight:600;font-size:15px;
}
.link-arrow i{transition:transform .2s ease-out}
.link-arrow:hover i{transform:translateX(4px)}

/* ============ 面包屑 ============ */
.crumbs{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:13px;color:var(--text-3);
}
.crumbs a{color:var(--text-3)}
.crumbs a:hover{color:var(--accent)}
.crumbs .sep{opacity:.5}
.crumbs .current{color:var(--text-2);max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ============ 文章头部 ============ */
.article-hero{
  position:relative;
  padding:132px 0 56px;
  background:linear-gradient(180deg,rgba(5,7,15,.55),rgba(5,7,15,.94)),url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  overflow:hidden;
}
.article-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:var(--line);
}
.article-hero-inner{max-width:880px;margin:0 auto}
.article-tag{
  display:inline-flex;align-items:center;gap:8px;
  height:26px;padding:0 12px;border-radius:var(--r-badge);
  background:var(--primary-soft);border:1px solid rgba(123,92,255,.4);
  color:#C6B8FF;font-size:12px;letter-spacing:.04em;
}
.article-hero h1{
  font-size:44px;
  margin:18px 0 20px;
  letter-spacing:.01em;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;
  font-size:13px;color:var(--text-3);
}
.article-meta span{display:inline-flex;align-items:center;gap:7px}
.article-meta i{color:var(--accent);font-size:12px}
.article-meta .num{font-family:var(--font-num);color:var(--text-2);font-size:14px;letter-spacing:.04em}

/* ============ 正文 ============ */
.article-section{padding:56px 0 24px;background:var(--ink-3)}
.article-shell{max-width:840px;margin:0 auto}
.article-body{
  font-size:17px;
  line-height:1.9;
  color:var(--text-2);
}
.article-body p{margin:0 0 1.2em}
.article-body h2{
  position:relative;
  font-size:26px;
  color:var(--text);
  margin:2.1em 0 .85em;
  padding-left:18px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.24em;bottom:.24em;width:4px;border-radius:2px;
  background:linear-gradient(180deg,var(--primary),var(--accent));
  box-shadow:0 0 18px rgba(123,92,255,.7);
}
.article-body h3{
  position:relative;
  font-size:20px;
  color:var(--text);
  margin:1.7em 0 .7em;
  padding-left:20px;
}
.article-body h3::before{
  content:"";position:absolute;left:0;top:.62em;width:9px;height:9px;border-radius:2px;
  background:var(--accent);box-shadow:0 0 12px rgba(0,224,198,.8);
}
.article-body h4{font-size:17px;color:var(--text);margin:1.4em 0 .6em}
.article-body a{color:var(--accent);text-decoration:underline;text-decoration-style:dotted;text-underline-offset:3px}
.article-body strong{color:var(--text)}
.article-body blockquote{
  margin:1.6em 0;
  padding:18px 22px;
  border-left:3px solid var(--primary);
  border-radius:0 var(--r-img) var(--r-img) 0;
  background:rgba(123,92,255,.09);
  color:var(--text);
  font-size:16.5px;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body ul,.article-body ol{margin:0 0 1.3em;padding-left:1.3em}
.article-body li{margin:.4em 0}
.article-body ul li::marker{color:var(--accent)}
.article-body ol li::marker{color:var(--primary);font-weight:700}
.article-body img{
  width:100%;height:auto;
  border-radius:var(--r-img);
  margin:1.4em 0 .6em;
  border:1px solid var(--line);
  background:#0C1020;
}
.article-body figure{margin:1.6em 0}
.article-body figcaption{
  font-size:13px;color:var(--text-3);text-align:center;margin-top:.2em;
}
.article-body table{
  width:100%;
  margin:1.6em 0;
  border-collapse:separate;
  border-spacing:0;
  font-size:15px;
  border:1px solid var(--line);
  border-radius:var(--r-img);
  overflow:hidden;
}
.article-body thead th{
  background:rgba(123,92,255,.14);
  color:var(--text);
  font-weight:600;
}
.article-body th,.article-body td{
  padding:12px 14px;
  text-align:left;
  border-bottom:1px solid var(--line);
}
.article-body tbody tr:last-child td{border-bottom:none}
.article-body tbody tr:nth-child(even) td{background:rgba(255,255,255,.02)}
.article-body pre{
  margin:1.6em 0;
  padding:18px 20px;
  border-radius:var(--r-img);
  background:#070B14;
  border:1px solid var(--line);
  overflow:auto;
  font-size:14px;
  line-height:1.7;
}
.article-body code{
  font-family:"SFMono-Regular",Consolas,"Liberation Mono",monospace;
  font-size:.92em;
  color:#B9FBF0;
  background:rgba(0,224,198,.08);
  padding:2px 6px;border-radius:6px;
}
.article-body pre code{background:none;padding:0;color:#CFE3FF}
.article-body hr{border:none;border-top:1px solid var(--line);margin:2.4em 0}
.article-body h2:first-child,.article-body h3:first-child{margin-top:0}

/* 空态 */
.empty-state{
  text-align:center;
  padding:72px 24px;
  border-radius:var(--r-lg);
  border:1px dashed var(--line-2);
  background:rgba(255,255,255,.03);
}
.empty-state .empty-icon{
  width:64px;height:64px;margin:0 auto 18px;border-radius:20px;
  display:flex;align-items:center;justify-content:center;
  background:var(--primary-soft);border:1px solid rgba(123,92,255,.4);
  color:var(--primary);font-size:24px;
}
.empty-state p{color:var(--text-2);margin-bottom:20px}

/* ============ 标签 & 翻页 ============ */
.article-foot{padding:24px 0 72px;background:var(--ink-3)}
.foot-shell{max-width:840px;margin:0 auto}
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:28px}
.tag-row .label{font-size:13px;color:var(--text-3)}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:var(--r-badge);
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
  color:var(--text-2);font-size:12.5px;
}
.tag:hover{color:var(--accent);border-color:rgba(0,224,198,.45)}
.post-nav{
  display:grid;grid-template-columns:1fr 1fr;gap:16px;
  margin-bottom:40px;
}
.post-nav a{
  display:block;padding:18px 20px;border-radius:var(--r-card);
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  box-shadow:var(--sh-soft);
  transition:all .2s ease-out;
}
.post-nav a:hover{transform:translateY(-4px);border-color:rgba(0,224,198,.4);color:var(--text)}
.post-nav .pn-label{font-size:12px;color:var(--text-3);display:block;margin-bottom:6px}
.post-nav .pn-title{font-size:15px;color:var(--text);font-weight:600;line-height:1.5}
.post-nav .pn-right{text-align:right}
.back-links{display:flex;flex-wrap:wrap;gap:14px;align-items:center}

/* ============ 相关推荐 ============ */
.related{
  padding:72px 0;
  background:var(--ink-2);
  border-top:1px solid var(--line);
}
.section-head{max-width:720px;margin-bottom:36px}
.section-head h2{font-size:30px;margin-bottom:12px}
.section-head p{color:var(--text-2);margin:0}
.related-grid{
  display:grid;grid-template-columns:1.15fr 1fr 1fr;gap:24px;
}
.rel-card{
  display:flex;flex-direction:column;
  border-radius:var(--r-card);
  background:rgba(255,255,255,.045);
  border:1px solid var(--line);
  box-shadow:var(--sh-card);
  overflow:hidden;
  transition:all .2s ease-out;
}
.rel-card:hover{transform:translateY(-4px);border-color:rgba(0,224,198,.32)}
.rel-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:#0C1020}
.rel-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease-out}
.rel-card:hover .rel-media img{transform:scale(1.04)}
.rel-body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.rel-badge{
  align-self:flex-start;
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:var(--r-badge);font-size:12px;
  background:var(--accent-soft);border:1px solid rgba(0,224,198,.35);color:#8CF3E5;
}
.rel-card.hot .rel-badge{
  background:rgba(255,77,157,.14);border-color:rgba(255,77,157,.4);color:#FF9AC7;
}
.rel-body h3{font-size:17px;line-height:1.5}
.rel-body p{font-size:14px;color:var(--text-2);margin:0;flex:1}
.rel-foot{
  display:flex;align-items:center;justify-content:space-between;
  font-size:12.5px;color:var(--text-3);
}
.rel-foot .time{font-family:var(--font-num);letter-spacing:.04em}

/* ============ CTA ============ */
.cta-band{
  padding:0 0 88px;
  background:var(--ink-2);
}
.cta-card{
  position:relative;
  border-radius:var(--r-lg);
  padding:44px 48px;
  background:
    linear-gradient(120deg,rgba(123,92,255,.20),rgba(0,224,198,.12)),
    url("/assets/images/backpic/back-3.png") right center/cover no-repeat,
    #0A0E1A;
  border:1px solid var(--line-2);
  box-shadow:var(--sh-card);
  display:flex;flex-wrap:wrap;align-items:center;gap:28px;justify-content:space-between;
  overflow:hidden;
}
.cta-card h2{font-size:28px;margin-bottom:10px}
.cta-card p{color:var(--text-2);margin:0;max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--ink);
  border-top:1px solid var(--line);
  padding:72px 0 32px;
}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;
}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{color:var(--text-2);font-size:14px;line-height:1.8;margin:0}
.footer-col h4{font-size:15px;margin-bottom:16px;color:var(--text)}
.footer-col ul{list-style:none;padding:0;margin:0}
.footer-col li{margin-bottom:10px}
.footer-col a{color:var(--text-2);font-size:14px;display:inline-block}
.footer-col a:hover{color:var(--accent);transform:translateX(2px)}
.footer-note{color:var(--text-2);font-size:14px;line-height:1.9;margin:0}
.footer-note strong{color:var(--text);font-weight:600}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}
.footer-bottom .links{display:flex;gap:20px;flex-wrap:wrap}
.footer-bottom a{color:var(--text-3)}
.footer-bottom a:hover{color:var(--accent)}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .5s ease-out,transform .5s ease-out}
.reveal.is-in{opacity:1;transform:none}

/* ============ 响应式 ============ */
@media (min-width:1400px){
  :root{--container:1280px}
}
@media (max-width:1199.98px){
  .article-hero h1{font-size:38px}
  .related-grid{grid-template-columns:1fr 1fr}
  .related-grid .rel-card:first-child{grid-column:1 / -1}
}
@media (max-width:991.98px){
  .header-inner{height:64px}
  .article-hero{padding:112px 0 44px}
  .article-hero h1{font-size:32px}
  .article-body{font-size:16.5px}
  .section-head h2{font-size:26px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .footer-brand{grid-column:1 / -1}
}
@media (max-width:767.98px){
  .container-xl{padding-left:18px;padding-right:18px}
  .article-hero{padding:100px 0 36px}
  .article-hero h1{font-size:28px}
  .article-body h2{font-size:22px}
  .article-body h3{font-size:18px}
  .related{padding:56px 0}
  .related-grid{grid-template-columns:1fr}
  .post-nav{grid-template-columns:1fr}
  .post-nav .pn-right{text-align:left}
  .cta-card{padding:30px 24px}
  .cta-card h2{font-size:23px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column}
}
@media (max-width:575.98px){
  .article-hero h1{font-size:25px}
  .article-body{font-size:16px;line-height:1.85}
  .btn{width:100%}
  .cta-actions{width:100%}
  .crumbs .current{max-width:200px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* roulang page: category1 */
:root{
  --ink-900:#05070F;
  --ink-800:#070B14;
  --ink-700:#0A0E1A;
  --primary:#7B5CFF;
  --primary-deep:#5B3FE0;
  --accent:#00E0C6;
  --hot:#FF4D9D;
  --ok:#2BD9A0;
  --warn:#FFB020;
  --err:#FF5C7A;
  --text-1:#EDF1FF;
  --text-2:#A9B4D0;
  --text-3:#66739A;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.14);
  --glass:rgba(255,255,255,.06);
  --glass-strong:rgba(255,255,255,.09);
  --r-sm:8px;
  --r-md:12px;
  --r-lg:18px;
  --r-xl:24px;
  --r-img:14px;
  --shadow-card:inset 0 1px 0 rgba(255,255,255,.06),0 20px 48px rgba(0,0,0,.5);
  --shadow-glow:0 0 24px rgba(123,92,255,.45);
  --shadow-glow-hover:0 0 34px rgba(123,92,255,.7);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-num:"Rajdhani","Barlow Condensed",var(--font-cn);
  --ease:200ms ease-out;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16.5px;
  line-height:1.75;
  color:var(--text-1);
  background:var(--ink-900);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color var(--ease),transform var(--ease)}
button{font:inherit;cursor:pointer}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700;letter-spacing:.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
::selection{background:rgba(123,92,255,.45);color:#fff}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px}

.container-xl{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1400px){.container-xl{max-width:1280px}}

/* ================= HEADER ================= */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1030;
  background:rgba(5,7,15,.25);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid var(--line);
  transition:background var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.site-header.is-stuck{
  background:rgba(5,7,15,.90);
  backdrop-filter:blur(20px) saturate(140%);
  -webkit-backdrop-filter:blur(20px) saturate(140%);
  box-shadow:0 14px 36px rgba(0,0,0,.5);
  border-bottom-color:rgba(255,255,255,.06);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  height:72px;transition:height var(--ease);
}
.site-header.is-stuck .header-inner{height:64px}

.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{display:inline-flex;filter:drop-shadow(0 0 10px rgba(123,92,255,.5))}
.brand-text{font-size:17px;font-weight:700;letter-spacing:.02em;white-space:nowrap}
.brand-text em{font-style:normal;color:var(--accent)}

.main-nav{display:flex;align-items:center;gap:4px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  padding:10px 14px;font-size:14.5px;color:var(--text-2);border-radius:10px;
  transition:color var(--ease),background var(--ease);
}
.nav-link:hover{color:var(--text-1);background:rgba(255,255,255,.05)}
.nav-link.active{color:var(--text-1)}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;border-radius:2px;
  background:var(--accent);box-shadow:0 0 10px rgba(0,224,198,.7);
}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.icon-btn{
  width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:12px;border:1px solid var(--line-strong);background:rgba(255,255,255,.04);
  color:var(--text-2);transition:all var(--ease);
}
.icon-btn:hover{color:var(--text-1);border-color:rgba(0,224,198,.45);background:rgba(0,224,198,.08)}

.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border:0;border-radius:999px;font-size:15px;font-weight:600;color:#fff;
  background:linear-gradient(120deg,var(--primary) 0%,var(--accent) 140%);
  box-shadow:var(--shadow-glow);
  transition:transform var(--ease),box-shadow var(--ease),filter var(--ease);
}
.btn-main:hover{transform:translateY(-2px);box-shadow:var(--shadow-glow-hover);filter:brightness(1.08);color:#fff}
.btn-main:active{transform:translateY(0);filter:brightness(.96)}
.btn-main.is-loading{opacity:.75;pointer-events:none}
.btn-main[disabled]{opacity:.5;pointer-events:none;box-shadow:none}

.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:999px;font-size:15px;font-weight:600;color:var(--text-1);
  background:rgba(255,255,255,.05);border:1px solid var(--line-strong);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  transition:all var(--ease);
}
.btn-ghost:hover{border-color:rgba(0,224,198,.6);color:var(--accent);transform:translateY(-2px)}

.btn-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14.5px;color:var(--accent);font-weight:600}
.btn-arrow i{transition:transform var(--ease)}
.btn-arrow:hover i{transform:translateX(4px)}

.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line-strong);background:rgba(255,255,255,.05);color:var(--text-1);
  align-items:center;justify-content:center;
}
@media (max-width:991.98px){
  .main-nav{display:none}
  .nav-actions .btn-main{display:none}
  .nav-toggle{display:inline-flex}
}

/* offcanvas */
.offcanvas.offcanvas-end{
  width:300px;background:rgba(7,11,20,.92);
  backdrop-filter:blur(20px) saturate(140%);-webkit-backdrop-filter:blur(20px) saturate(140%);
  border-left:1px solid var(--line-strong);color:var(--text-1);
}
.offcanvas-header{border-bottom:1px solid var(--line);padding:18px 20px}
.offcanvas-header .btn-close{filter:invert(1) grayscale(1) brightness(1.6);opacity:.7}
.mobile-nav{display:flex;flex-direction:column;gap:6px;padding:18px 4px}
.mobile-nav a{
  display:flex;align-items:center;min-height:44px;padding:0 16px;border-radius:12px;
  color:var(--text-2);font-size:15.5px;border:1px solid transparent;
}
.mobile-nav a:hover,.mobile-nav a.active{
  color:var(--text-1);background:rgba(255,255,255,.06);border-color:var(--line-strong);
}
.mobile-nav a.active{border-color:rgba(0,224,198,.4)}
.mobile-cta{padding:8px 4px 24px}

/* ================= HERO ================= */
.page-hero{
  position:relative;
  padding:150px 0 84px;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(900px 420px at 12% 8%,rgba(123,92,255,.34),transparent 62%),
    linear-gradient(100deg,rgba(5,7,15,.96) 0%,rgba(5,7,15,.86) 42%,rgba(5,7,15,.58) 100%);
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:64px 64px;opacity:.5;pointer-events:none;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.6),transparent 78%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.6),transparent 78%);
}
.hero-inner{position:relative;z-index:2;max-width:760px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-sm);font-size:13px;letter-spacing:.08em;
  color:var(--accent);background:rgba(0,224,198,.09);border:1px solid rgba(0,224,198,.28);
  font-family:var(--font-num);text-transform:uppercase;
}
.page-hero h1{
  margin-top:20px;font-size:44px;line-height:1.2;letter-spacing:.01em;
  text-shadow:0 8px 32px rgba(0,0,0,.6);
}
.page-hero h1 span{
  background:linear-gradient(100deg,var(--primary) 6%,var(--accent) 92%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-lead{margin-top:18px;font-size:17px;color:var(--text-2);max-width:620px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-anchors{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.anchor-chip{
  display:inline-flex;align-items:center;gap:7px;
  padding:8px 15px;border-radius:999px;font-size:13.5px;color:var(--text-2);
  background:rgba(255,255,255,.05);border:1px solid var(--line);transition:all var(--ease);
}
.anchor-chip:hover{color:var(--accent);border-color:rgba(0,224,198,.45);transform:translateY(-2px)}

.hero-metrics{
  position:relative;z-index:2;display:grid;grid-template-columns:repeat(4,1fr);
  gap:16px;margin-top:56px;
}
.metric{
  padding:18px 20px;border-radius:var(--r-lg);
  background:rgba(255,255,255,.06);border:1px solid var(--line-strong);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
}
.metric .m-label{font-size:12.5px;color:var(--text-3);letter-spacing:.06em}
.metric .m-value{
  font-family:var(--font-num);font-size:24px;font-weight:700;color:var(--text-1);margin-top:4px;
  letter-spacing:.02em;
}
.metric .m-value.accent{color:var(--accent)}

/* ================= SECTIONS ================= */
.section{padding:96px 0;position:relative}
.section--alt{background:var(--ink-800)}
.section--deep{background:var(--ink-700)}
.section-head{max-width:720px;margin-bottom:48px}
.section-head h2{font-size:30px}
.section-head p{margin-top:14px;color:var(--text-2);font-size:16px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.kicker{
  display:inline-block;margin-bottom:14px;font-family:var(--font-num);font-size:13px;
  letter-spacing:.14em;text-transform:uppercase;color:var(--accent);
}

/* overview */
.overview{
  display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:40px;align-items:center;
}
.overview-media{
  position:relative;border-radius:var(--r-xl);overflow:hidden;
  border:1px solid var(--line-strong);box-shadow:var(--shadow-card);
  aspect-ratio:4/3;background:var(--ink-700);
}
.overview-media img{width:100%;height:100%;object-fit:cover}
.overview-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 40%,rgba(5,7,15,.72) 100%);
}
.overview-media .media-tag{
  position:absolute;left:16px;bottom:16px;z-index:2;
  padding:6px 13px;border-radius:var(--r-sm);font-size:12.5px;
  background:rgba(5,7,15,.72);border:1px solid rgba(0,224,198,.35);color:var(--accent);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
}
.overview-body h3{font-size:22px}
.overview-body .lede{margin-top:14px;color:var(--text-2)}
.check-list{margin-top:26px;display:grid;gap:14px}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:15.5px;color:var(--text-2)}
.check-list li i{color:var(--accent);margin-top:4px;font-size:14px}
.check-list li strong{color:var(--text-1);font-weight:600}

/* numbered list */
.num-list{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.num-item{
  display:flex;gap:16px;padding:22px;border-radius:var(--r-lg);
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  transition:transform var(--ease),border-color var(--ease),background var(--ease);
}
.num-item:hover{transform:translateY(-4px);border-color:rgba(0,224,198,.32);background:rgba(255,255,255,.06)}
.num-index{
  flex:0 0 auto;width:44px;height:44px;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  font-family:var(--font-num);font-size:17px;font-weight:700;color:var(--accent);
  background:rgba(0,224,198,.08);border:1px solid rgba(0,224,198,.28);
}
.num-item h3{font-size:17px;margin-bottom:6px}
.num-item p{font-size:14.5px;color:var(--text-2)}

/* package cards */
.pkg-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;align-items:start}
.pkg-card{
  border-radius:var(--r-lg);overflow:hidden;background:rgba(255,255,255,.05);
  border:1px solid var(--line-strong);box-shadow:var(--shadow-card);
  transition:transform var(--ease),border-color var(--ease);
  display:flex;flex-direction:column;
}
.pkg-card:hover{transform:translateY(-4px);border-color:rgba(0,224,198,.3)}
.pkg-card:nth-child(2){margin-top:34px}
.pkg-card:nth-child(3){margin-top:68px}
.pkg-cover{aspect-ratio:16/10;overflow:hidden;background:var(--ink-700)}
.pkg-cover img{width:100%;height:100%;object-fit:cover;transition:transform 400ms ease-out}
.pkg-card:hover .pkg-cover img{transform:scale(1.04)}
.pkg-body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1}
.badge-soft{
  display:inline-flex;align-items:center;gap:6px;height:25px;padding:0 11px;border-radius:var(--r-sm);
  font-size:12.5px;background:rgba(255,255,255,.07);border:1px solid var(--line-strong);color:var(--text-2);
}
.badge-soft.accent{color:var(--accent);border-color:rgba(0,224,198,.32);background:rgba(0,224,198,.09)}
.badge-soft.hot{color:var(--hot);border-color:rgba(255,77,157,.34);background:rgba(255,77,157,.10)}
.pkg-body h3{font-size:18px}
.pkg-body p{font-size:14.5px;color:var(--text-2)}
.pkg-meta{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:8px 18px;font-size:13px;color:var(--text-3);
  font-family:var(--font-num);letter-spacing:.03em;
}
.pkg-meta b{color:var(--text-2);font-weight:600}

/* flow */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;position:relative}
.flow::before{
  content:"";position:absolute;top:26px;left:6%;right:6%;height:1px;
  background:linear-gradient(90deg,transparent,rgba(0,224,198,.45),rgba(123,92,255,.45),transparent);
}
.flow-item{position:relative;padding-top:64px;text-align:center}
.flow-node{
  position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:54px;height:54px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  font-family:var(--font-num);font-size:18px;font-weight:700;color:var(--accent);
  background:rgba(10,14,26,.95);border:1px solid rgba(0,224,198,.4);
  box-shadow:0 0 22px rgba(0,224,198,.3);
}
.flow-item h3{font-size:17px;margin-bottom:8px}
.flow-item p{font-size:14px;color:var(--text-2)}

/* FAQ */
.faq-wrap{max-width:900px;margin:0 auto}
.faq-accordion .accordion-item{
  background:rgba(255,255,255,.045);border:1px solid var(--line);border-radius:var(--r-lg);
  margin-bottom:14px;overflow:hidden;transition:border-color var(--ease);
}
.faq-accordion .accordion-item:has(.accordion-button:not(.collapsed)){border-color:rgba(0,224,198,.32)}
.faq-accordion .accordion-button{
  position:relative;background:transparent;color:var(--text-1);font-size:16.5px;font-weight:600;
  padding:20px 56px 20px 26px;box-shadow:none;border:0;
}
.faq-accordion .accordion-button::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:0 3px 3px 0;
  background:linear-gradient(180deg,var(--primary),var(--accent));opacity:0;transition:opacity var(--ease);
}
.faq-accordion .accordion-button:not(.collapsed)::before{opacity:1}
.faq-accordion .accordion-button:not(.collapsed){color:var(--accent);background:transparent}
.faq-accordion .accordion-button:focus{box-shadow:none}
.faq-accordion .accordion-button::after{
  background-image:none;content:"\2b";font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;right:24px;top:50%;transform:translateY(-50%);
  width:auto;height:auto;font-size:15px;color:var(--text-2);transition:transform var(--ease),color var(--ease);
}
.faq-accordion .accordion-button:not(.collapsed)::after{content:"\f068";color:var(--accent);transform:translateY(-50%) rotate(0deg)}
.faq-accordion .accordion-body{padding:0 26px 24px;color:var(--text-2);font-size:15px;line-height:1.9}

/* CTA band */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-xl);
  padding:56px 48px;border:1px solid rgba(123,92,255,.32);
  background:
    radial-gradient(600px 260px at 88% 12%,rgba(0,224,198,.20),transparent 68%),
    linear-gradient(115deg,rgba(123,92,255,.24),rgba(10,14,26,.9) 62%);
  box-shadow:var(--shadow-card);
}
.cta-band h2{font-size:28px}
.cta-band p{margin-top:14px;color:var(--text-2);max-width:620px}
.cta-band .cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.cta-note{margin-top:20px;font-size:13.5px;color:var(--text-3);font-family:var(--font-num);letter-spacing:.04em}

/* ================= FOOTER ================= */
.site-footer{
  background:var(--ink-800);border-top:1px solid var(--line);
  padding:72px 0 32px;position:relative;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(123,92,255,.5),rgba(0,224,198,.5),transparent);
}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:40px;
}
.footer-brand p{margin-top:18px;font-size:14.5px;color:var(--text-2);max-width:340px}
.footer-col h4{font-size:15px;margin-bottom:18px;color:var(--text-1)}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14.5px;color:var(--text-2);display:inline-block}
.footer-col a:hover{color:var(--accent);transform:translateX(3px)}
.footer-note{font-size:14px;color:var(--text-2);line-height:2}
.footer-note strong{color:var(--text-1);font-weight:600}
.footer-bottom{
  margin-top:52px;padding-top:24px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;
  font-size:13.5px;color:var(--text-3);
}
.footer-bottom .links{display:flex;flex-wrap:wrap;gap:18px}
.footer-bottom .links a:hover{color:var(--accent)}

/* reveal */
.reveal{opacity:0;transform:translateY(16px);transition:opacity 600ms ease-out,transform 600ms ease-out}
.reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
  *{transition:none!important;animation:none!important}
}

/* ================= RESPONSIVE ================= */
@media (max-width:1199.98px){
  .pkg-grid{grid-template-columns:repeat(3,1fr);gap:18px}
  .pkg-card:nth-child(3){margin-top:44px}
}
@media (max-width:991.98px){
  .page-hero{padding:130px 0 68px}
  .page-hero h1{font-size:36px}
  .hero-metrics{grid-template-columns:repeat(2,1fr);margin-top:44px}
  .section{padding:76px 0}
  .overview{grid-template-columns:1fr;gap:28px}
  .pkg-grid{grid-template-columns:1fr 1fr}
  .pkg-card:nth-child(2),.pkg-card:nth-child(3){margin-top:0}
  .flow{grid-template-columns:1fr 1fr;gap:32px 20px}
  .flow::before{display:none}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767.98px){
  body{font-size:16px}
  .container-xl{padding:0 18px}
  .page-hero{padding:118px 0 56px}
  .page-hero h1{font-size:30px}
  .hero-lead{font-size:15.5px}
  .hero-metrics{grid-template-columns:1fr 1fr;gap:12px}
  .metric{padding:14px 16px}
  .metric .m-value{font-size:20px}
  .section{padding:56px 0}
  .section-head{margin-bottom:32px}
  .section-head h2{font-size:24px}
  .num-list{grid-template-columns:1fr}
  .pkg-grid{grid-template-columns:1fr}
  .flow{grid-template-columns:1fr}
  .flow-item{padding-top:0;padding-left:70px;text-align:left}
  .flow-node{left:0;transform:none;top:0}
  .cta-band{padding:36px 24px}
  .cta-band h2{font-size:22px}
  .footer-grid{grid-template-columns:1fr}
  .faq-accordion .accordion-button{font-size:15.5px;padding:18px 48px 18px 20px}
  .faq-accordion .accordion-body{padding:0 20px 20px}
}
@media (max-width:575.98px){
  .hero-actions .btn-main,.hero-actions .btn-ghost{width:100%}
  .hero-metrics{grid-template-columns:1fr}
  .brand-text{font-size:15.5px}
}

/* roulang page: category2 */
:root{
  --ink-1:#05070F;
  --ink-2:#0A0E1A;
  --ink-3:#070B14;
  --primary:#7B5CFF;
  --primary-deep:#6B4BFF;
  --accent:#00E0C6;
  --hot:#FF4D9D;
  --text:#EDF1FF;
  --text-2:#A9B4D0;
  --text-3:#66739A;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.14);
  --glass:rgba(255,255,255,.06);
  --glass-strong:rgba(255,255,255,.09);
  --success:#2BD9A0;
  --warn:#FFB020;
  --error:#FF5C7A;
  --r-card:18px;
  --r-lg:24px;
  --r-btn:12px;
  --r-badge:8px;
  --r-img:14px;
  --shadow-card:0 20px 48px rgba(0,0,0,.5);
  --shadow-soft:0 12px 32px rgba(0,0,0,.35);
  --glow-primary:0 0 24px rgba(123,92,255,.45);
  --glow-accent:0 0 24px rgba(0,224,198,.35);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --font-num:"Rajdhani","Barlow Condensed",var(--font-cn);
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:96px}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--ink-1);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto}
a{color:var(--text);text-decoration:none;transition:color .2s ease-out,transform .2s ease-out}
a:hover{color:var(--accent)}
button{font-family:inherit;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700;letter-spacing:.2px}
p{margin:0}
::selection{background:rgba(123,92,255,.45);color:#fff}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px}

.container-xl{
  max-width:1200px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
  width:100%;
}
@media (min-width:1400px){.container-xl{max-width:1280px}}
@media (max-width:768px){.container-xl{padding-left:18px;padding-right:18px}}

/* ============ 通用元素 ============ */
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:1.6px;text-transform:uppercase;
  color:var(--accent);font-family:var(--font-num);font-weight:600;
}
.eyebrow::before{content:"";width:22px;height:1px;background:linear-gradient(90deg,var(--accent),transparent)}
.section{padding:96px 0;position:relative}
.section--alt{background:var(--ink-2)}
.section--deep{background:var(--ink-3)}
.section-head{max-width:720px;margin-bottom:48px}
.section-head h2{font-size:30px;margin:14px 0 12px}
.section-head p{color:var(--text-2);font-size:16px}
@media (max-width:768px){
  .section{padding:56px 0}
  .section-head{margin-bottom:28px}
  .section-head h2{font-size:24px}
}

.reveal{opacity:0;transform:translateY(16px);transition:opacity .55s ease-out,transform .55s ease-out}
.reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
  *{transition-duration:.01ms !important;animation-duration:.01ms !important}
}

/* ============ 按钮 ============ */
.btn-glow{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 30px;border:none;border-radius:999px;
  font-size:15px;font-weight:600;color:#fff;
  background:linear-gradient(96deg,var(--primary),var(--primary-deep) 58%,var(--accent));
  box-shadow:var(--glow-primary);
  transition:transform .2s ease-out,box-shadow .2s ease-out,filter .2s ease-out;
  white-space:nowrap;
}
.btn-glow:hover{color:#fff;transform:translateY(-2px);box-shadow:0 0 34px rgba(123,92,255,.7);filter:brightness(1.06)}
.btn-glow:active{transform:translateY(0);filter:brightness(.96)}
.btn-glow.is-loading{opacity:.72;pointer-events:none}
.btn-glow:disabled,.btn-glow.disabled{opacity:.45;box-shadow:none;pointer-events:none;transform:none}

.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:999px;
  border:1px solid var(--line-strong);
  background:rgba(255,255,255,.04);
  color:var(--text);font-size:15px;font-weight:600;
  backdrop-filter:blur(12px);
  transition:border-color .2s ease-out,background .2s ease-out,transform .2s ease-out,color .2s ease-out;
  white-space:nowrap;
}
.btn-ghost:hover{border-color:rgba(0,224,198,.65);color:var(--accent);background:rgba(0,224,198,.08);transform:translateY(-2px)}

.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--accent);font-weight:600;font-size:15px;
}
.btn-text i{transition:transform .2s ease-out}
.btn-text:hover i{transform:translateX(4px)}

/* ============ 徽章 / 标签 ============ */
.badge-soft{
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 10px;border-radius:var(--r-badge);
  font-size:12.5px;font-weight:600;letter-spacing:.4px;
  background:rgba(123,92,255,.14);
  color:#C4B6FF;
  border:1px solid rgba(123,92,255,.28);
}
.badge-soft.is-accent{background:rgba(0,224,198,.12);color:var(--accent);border-color:rgba(0,224,198,.3)}
.badge-soft.is-hot{background:rgba(255,77,157,.14);color:var(--hot);border-color:rgba(255,77,157,.3)}

/* ============ 导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1030;
  height:72px;
  background:rgba(5,7,15,.25);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.06);
  transition:height .25s ease-out,background .25s ease-out,box-shadow .25s ease-out;
}
.site-header.is-stuck{
  height:64px;
  background:rgba(5,7,15,.92);
  box-shadow:0 12px 32px rgba(0,0,0,.45);
  border-bottom-color:rgba(255,255,255,.1);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:100%;gap:20px}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:38px;height:38px;border-radius:12px;
  display:grid;place-items:center;
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.1);
  box-shadow:0 0 18px rgba(123,92,255,.25);
}
.brand-text{font-size:17px;font-weight:700;letter-spacing:.5px;white-space:nowrap}
.brand-text em{font-style:normal;color:var(--accent);font-family:var(--font-num);letter-spacing:1px}

.main-nav{display:flex;align-items:center;gap:6px;margin:0 auto}
.main-nav .nav-link{
  position:relative;
  padding:10px 14px;border-radius:10px;
  font-size:14.5px;font-weight:500;color:var(--text-2);
  transition:color .2s ease-out,background .2s ease-out;
}
.main-nav .nav-link:hover{color:var(--text);background:rgba(255,255,255,.05)}
.main-nav .nav-link.active{color:var(--accent);background:rgba(0,224,198,.07)}
.main-nav .nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),var(--accent));
  box-shadow:0 0 12px rgba(0,224,198,.6);
}

.header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.icon-btn{
  width:42px;height:42px;border-radius:12px;
  display:grid;place-items:center;
  border:1px solid var(--line);background:rgba(255,255,255,.04);
  color:var(--text-2);font-size:15px;
  transition:color .2s ease-out,border-color .2s ease-out,background .2s ease-out;
}
.icon-btn:hover{color:var(--accent);border-color:rgba(0,224,198,.5);background:rgba(0,224,198,.08)}
.header-cta{padding:11px 22px;font-size:14px}
.burger{
  width:44px;height:44px;border-radius:12px;
  display:grid;place-items:center;
  border:1px solid var(--line);background:rgba(255,255,255,.04);color:var(--text);
  font-size:17px;
}

.search-drawer{
  position:absolute;top:100%;right:24px;width:min(420px,calc(100% - 32px));
  margin-top:12px;padding:20px;
  border-radius:var(--r-card);
  background:rgba(10,14,26,.96);
  border:1px solid var(--line-strong);
  box-shadow:var(--shadow-card);
  backdrop-filter:blur(18px);
  opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity .2s ease-out,transform .2s ease-out,visibility .2s;
}
.search-drawer.is-open{opacity:1;visibility:visible;transform:none}
.search-form label{display:block;font-size:13px;color:var(--text-2);margin-bottom:8px}
.search-row{display:flex;gap:10px}
.search-row input{
  flex:1;height:48px;padding:0 16px;border-radius:12px;
  background:rgba(255,255,255,.05);
  border:1px solid var(--line-strong);
  color:var(--text);font-size:15px;font-family:inherit;
  transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.search-row input::placeholder{color:var(--text-3)}
.search-row input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 4px rgba(0,224,198,.14)}
.search-row .btn-glow{padding:0 22px;height:48px;font-size:14px}

/* 移动端抽屉 */
.site-drawer{
  background:rgba(8,11,22,.96) !important;
  backdrop-filter:blur(20px);
  border-left:1px solid var(--line-strong) !important;
  width:min(320px,86vw) !important;
  color:var(--text);
}
.site-drawer .offcanvas-header{padding:20px 22px;border-bottom:1px solid var(--line)}
.site-drawer .btn-close{filter:invert(1) grayscale(1) brightness(2);opacity:.75}
.site-drawer .offcanvas-body{padding:16px 22px 28px;display:flex;flex-direction:column;gap:6px}
.drawer-link{
  display:flex;align-items:center;min-height:44px;
  padding:0 14px;border-radius:12px;
  font-size:15.5px;color:var(--text-2);
  border:1px solid transparent;
  transition:background .2s ease-out,color .2s ease-out,border-color .2s ease-out;
}
.drawer-link:hover,.drawer-link.active{
  color:var(--accent);background:rgba(0,224,198,.08);border-color:rgba(0,224,198,.22);
}
.drawer-cta{margin-top:14px}

/* ============ Hero ============ */
.hero{
  position:relative;
  min-height:76vh;
  display:flex;align-items:center;
  padding:150px 0 84px;
  overflow:hidden;
  background-image:
    linear-gradient(100deg,rgba(5,7,15,.96) 0%,rgba(5,7,15,.86) 42%,rgba(5,7,15,.55) 72%,rgba(5,7,15,.78) 100%),
    url("/assets/images/backpic/back-1.webp");
  background-size:cover;
  background-position:center;
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  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:radial-gradient(circle at 30% 40%,#000 0%,transparent 72%);
  -webkit-mask-image:radial-gradient(circle at 30% 40%,#000 0%,transparent 72%);
}
.hero .container-xl{position:relative;z-index:2}
.hero-grid{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:48px;align-items:center}
.hero h1{font-size:44px;margin:18px 0 18px;letter-spacing:.5px}
.hero h1 span{
  background:linear-gradient(96deg,var(--primary),var(--accent));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{color:var(--text-2);font-size:17px;max-width:560px;margin-bottom:30px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px 22px;font-size:13px;color:var(--text-3);font-family:var(--font-num);letter-spacing:.6px}
.hero-meta span{display:inline-flex;align-items:center;gap:7px}
.hero-meta i{color:var(--accent);font-size:12px}

.hero-card{
  position:relative;
  border-radius:var(--r-lg);
  padding:14px;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.12);
  backdrop-filter:blur(18px) saturate(140%);
  box-shadow:0 30px 70px rgba(0,0,0,.55),0 0 40px rgba(123,92,255,.22);
  transform:perspective(1100px) rotateY(-6deg);
}
.hero-card img{border-radius:var(--r-img);aspect-ratio:16/10;object-fit:cover;width:100%}
.hero-card::before{
  content:"";position:absolute;inset:-1px;border-radius:calc(var(--r-lg) + 1px);
  background:linear-gradient(140deg,rgba(123,92,255,.5),transparent 45%,rgba(0,224,198,.4));
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;padding:1px;pointer-events:none;
}
.hero-card-tag{
  position:absolute;left:26px;bottom:26px;
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 14px;border-radius:999px;font-size:13px;
  background:rgba(5,7,15,.72);border:1px solid rgba(0,224,198,.35);color:var(--accent);
  backdrop-filter:blur(10px);font-family:var(--font-num);letter-spacing:.6px;
}
@media (max-width:992px){
  .hero{padding:126px 0 64px;min-height:auto}
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .hero h1{font-size:36px}
  .hero-card{transform:none}
}
@media (max-width:576px){
  .hero h1{font-size:30px}
  .hero-sub{font-size:16px}
  .hero-actions .btn-glow,.hero-actions .btn-ghost{width:100%}
}

/* ============ 锚点导航条 ============ */
.anchor-bar{
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  background:var(--ink-3);
  padding:16px 0;
}
.anchor-list{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.anchor-list a{
  display:inline-flex;align-items:center;gap:8px;
  height:38px;padding:0 16px;border-radius:999px;
  font-size:14px;color:var(--text-2);
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
  transition:all .2s ease-out;
}
.anchor-list a:hover{color:var(--accent);border-color:rgba(0,224,198,.45);background:rgba(0,224,198,.07);transform:translateY(-1px)}
.anchor-list .anchor-note{margin-left:auto;font-size:13px;color:var(--text-3)}
@media (max-width:768px){.anchor-list .anchor-note{margin-left:0;width:100%}}

/* ============ 指标位 ============ */
.metrics{display:grid;grid-template-columns:1.25fr .9fr 1fr;gap:22px}
.metric{
  position:relative;
  padding:30px 26px;
  border-radius:var(--r-card);
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.08);
  box-shadow:var(--shadow-soft);
  overflow:hidden;
  transition:transform .25s ease-out,border-color .25s ease-out;
}
.metric:hover{transform:translateY(-4px);border-color:rgba(0,224,198,.4)}
.metric::after{
  content:"";position:absolute;right:-40px;top:-40px;width:140px;height:140px;border-radius:50%;
  background:radial-gradient(circle,rgba(123,92,255,.28),transparent 68%);
}
.metric .num{
  font-family:var(--font-num);font-weight:700;font-size:46px;line-height:1;
  color:var(--text);letter-spacing:1px;
}
.metric .num small{font-size:16px;color:var(--accent);margin-left:6px;font-weight:600}
.metric h3{font-size:17px;margin:14px 0 8px}
.metric p{color:var(--text-2);font-size:14.5px}
.metric:nth-child(2){margin-top:26px;background:rgba(0,224,198,.06);border-color:rgba(0,224,198,.2)}
.metric:nth-child(3){margin-top:12px}
@media (max-width:992px){
  .metrics{grid-template-columns:1fr 1fr}
  .metric:nth-child(2),.metric:nth-child(3){margin-top:0}
}
@media (max-width:768px){
  .metrics{grid-template-columns:1fr;gap:16px}
  .metric .num{font-size:38px}
}

/* ============ 时间轴 ============ */
.timeline{position:relative;max-width:940px;margin:0 auto}
.timeline::before{
  content:"";position:absolute;left:19px;top:12px;bottom:12px;width:2px;
  background:linear-gradient(180deg,rgba(123,92,255,.85),rgba(0,224,198,.6) 55%,rgba(0,224,198,0));
}
.tl-item{position:relative;padding:0 0 40px 68px}
.tl-item:last-child{padding-bottom:0}
.tl-node{
  position:absolute;left:8px;top:6px;width:24px;height:24px;border-radius:50%;
  background:var(--ink-1);
  border:2px solid var(--primary);
  box-shadow:0 0 16px rgba(123,92,255,.75);
}
.tl-node::after{
  content:"";position:absolute;inset:5px;border-radius:50%;
  background:linear-gradient(135deg,var(--primary),var(--accent));
}
.tl-step{
  display:inline-block;font-family:var(--font-num);font-size:13px;letter-spacing:1.6px;
  color:var(--accent);margin-bottom:8px;
}
.tl-item h3{font-size:20px;margin-bottom:10px}
.tl-item p{color:var(--text-2);font-size:15.5px;max-width:680px}
.tl-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
@media (max-width:768px){
  .tl-item{padding-left:54px}
  .timeline::before{left:15px}
  .tl-node{left:4px}
  .tl-item h3{font-size:18px}
}

/* ============ 对比卡 ============ */
.compare-grid{display:grid;grid-template-columns:.92fr 1.08fr;gap:24px;align-items:start}
.compare-card{
  padding:32px 28px;border-radius:var(--r-lg);
  background:rgba(255,255,255,.045);
  border:1px solid rgba(255,255,255,.08);
  box-shadow:var(--shadow-card);
  transition:transform .25s ease-out,border-color .25s ease-out;
}
.compare-card:hover{transform:translateY(-4px);border-color:rgba(123,92,255,.45)}
.compare-card.is-accent{
  background:linear-gradient(160deg,rgba(0,224,198,.09),rgba(255,255,255,.03) 55%);
  border-color:rgba(0,224,198,.3);
}
.compare-card.is-accent:hover{border-color:rgba(0,224,198,.6)}
.compare-card header{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:20px}
.compare-card h3{font-size:21px}
.spec-list li{
  display:grid;grid-template-columns:88px 1fr;gap:14px;
  padding:14px 0;border-top:1px solid var(--line);
  font-size:15px;
}
.spec-list li:first-child{border-top:none;padding-top:0}
.spec-list span{color:var(--text-3);font-size:13.5px;letter-spacing:.4px}
.spec-list strong{font-weight:500;color:var(--text)}
@media (max-width:992px){.compare-grid{grid-template-columns:1fr}}

/* ============ 规格卡 ============ */
.spec-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-bottom:32px}
.spec-card{
  padding:24px 22px;border-radius:var(--r-card);
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.08);
  transition:transform .2s ease-out,border-color .2s ease-out,background .2s ease-out;
}
.spec-card:hover{transform:translateY(-4px);border-color:rgba(0,224,198,.4);background:rgba(0,224,198,.05)}
.spec-card i{font-size:20px;color:var(--accent);margin-bottom:14px;display:block}
.spec-card h3{font-size:16px;margin-bottom:8px}
.spec-card p{font-size:14px;color:var(--text-2)}
.spec-note{
  display:flex;flex-wrap:wrap;gap:12px 28px;
  padding:22px 26px;border-radius:var(--r-card);
  background:rgba(255,255,255,.03);
  border:1px dashed rgba(255,255,255,.14);
  font-size:14px;color:var(--text-2);
}
.spec-note i{color:var(--warn);margin-right:8px}
@media (max-width:1200px){.spec-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:576px){.spec-grid{grid-template-columns:1fr;gap:14px}}

/* ============ 更新记录 ============ */
.log-list{border-top:1px solid var(--line)}
.log-item{
  display:grid;grid-template-columns:132px 1fr auto;gap:24px;align-items:center;
  padding:22px 8px;border-bottom:1px solid var(--line);
  transition:background .2s ease-out,padding .2s ease-out;
}
.log-item:hover{background:rgba(255,255,255,.035);padding-left:16px;padding-right:16px;border-radius:12px}
.log-date{font-family:var(--font-num);font-size:15px;color:var(--text-3);letter-spacing:1px}
.log-body h3{font-size:17px;margin-bottom:6px}
.log-body p{color:var(--text-2);font-size:14.5px}
.log-item .badge-soft{white-space:nowrap}
@media (max-width:768px){
  .log-item{grid-template-columns:1fr;gap:10px;padding:20px 4px}
  .log-item:hover{padding-left:8px;padding-right:8px}
}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px;margin:0 auto}
.accordion-item{
  background:rgba(255,255,255,.045) !important;
  border:1px solid rgba(255,255,255,.08) !important;
  border-radius:var(--r-card) !important;
  margin-bottom:14px;
  overflow:hidden;
}
.accordion-button{
  background:transparent !important;
  color:var(--text) !important;
  font-size:16.5px;font-weight:600;
  padding:22px 56px 22px 26px;
  box-shadow:none !important;
  position:relative;
}
.accordion-button::after{
  content:"+";
  background-image:none !important;
  position:absolute;right:24px;top:50%;transform:translateY(-50%);
  width:28px;height:28px;line-height:26px;text-align:center;
  border-radius:50%;border:1px solid var(--line-strong);
  color:var(--accent);font-size:17px;font-weight:400;
  transition:transform .25s ease-out,background .25s ease-out;
}
.accordion-button:not(.collapsed)::after{
  content:"−";transform:translateY(-50%) rotate(180deg);
  background:rgba(0,224,198,.12);border-color:rgba(0,224,198,.4);
}
.accordion-button:not(.collapsed){
  color:var(--accent) !important;
  border-left:3px solid var(--accent);
}
.accordion-button:hover{background:rgba(255,255,255,.03) !important}
.accordion-body{
  padding:0 26px 24px 26px;
  color:var(--text-2);font-size:15.5px;line-height:1.85;
}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;
  border-radius:var(--r-lg);
  padding:56px 48px;
  background:
    linear-gradient(110deg,rgba(5,7,15,.94),rgba(10,14,26,.78)),
    url("/assets/images/backpic/back-3.png") center/cover no-repeat;
  border:1px solid rgba(255,255,255,.1);
  box-shadow:var(--shadow-card);
}
.cta-band::before{
  content:"";position:absolute;left:-80px;bottom:-120px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(123,92,255,.35),transparent 68%);
}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1fr auto;gap:32px;align-items:center}
.cta-band .cta-title{font-size:28px;font-weight:700;line-height:1.3;margin-bottom:12px;color:var(--text)}
.cta-band p{color:var(--text-2);max-width:600px;font-size:15.5px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}
.cta-note{margin-top:18px;font-size:13px;color:var(--text-3);font-family:var(--font-num);letter-spacing:.6px}
@media (max-width:992px){
  .cta-band{padding:40px 26px}
  .cta-inner{grid-template-columns:1fr}
  .cta-band .cta-title{font-size:23px}
}
@media (max-width:576px){.cta-actions .btn-glow,.cta-actions .btn-ghost{width:100%}}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--ink-3);
  border-top:1px solid var(--line);
  padding:72px 0 0;
  margin-top:0;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:42px}
.footer-brand p{color:var(--text-2);font-size:14.5px;margin-top:18px;max-width:340px}
.footer-col h4{font-size:15px;margin-bottom:18px;color:var(--text);letter-spacing:.5px}
.footer-col ul li{margin-bottom:12px}
.footer-col ul li a{font-size:14.5px;color:var(--text-2);display:inline-block}
.footer-col ul li a:hover{color:var(--accent);transform:translateX(2px)}
.footer-note{font-size:14px;color:var(--text-2);line-height:1.9}
.footer-note strong{color:var(--text);font-weight:600}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center;
  margin-top:56px;padding:24px 0;
  border-top:1px solid var(--line);
  font-size:13.5px;color:var(--text-3);
}
.footer-bottom .links{display:flex;gap:22px;flex-wrap:wrap}
.footer-bottom .links a{color:var(--text-3)}
.footer-bottom .links a:hover{color:var(--accent)}
@media (max-width:992px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .footer-brand{grid-column:1 / -1}
}
@media (max-width:576px){
  .footer-grid{grid-template-columns:1fr}
  .site-footer{padding-top:48px}
}

/* roulang page: category3 */
/* ============ 设计变量 ============ */
:root{
  --ink-900:#05070F;
  --ink-800:#070B14;
  --ink-700:#0A0E1A;
  --primary:#7B5CFF;
  --primary-soft:rgba(123,92,255,.16);
  --accent:#00E0C6;
  --hot:#FF4D9D;
  --ok:#2BD9A0;
  --warn:#FFB020;
  --err:#FF5C7A;
  --text:#EDF1FF;
  --text-2:#A9B4D0;
  --text-3:#66739A;
  --line:rgba(255,255,255,.08);
  --line-2:rgba(255,255,255,.14);
  --glass:rgba(255,255,255,.05);
  --glass-2:rgba(255,255,255,.08);
  --r-card:18px;
  --r-lg:24px;
  --r-btn:12px;
  --r-img:14px;
  --shadow-card:0 20px 48px rgba(0,0,0,.5);
  --shadow-glow:0 0 24px rgba(123,92,255,.45);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-num:"Barlow Condensed","Rajdhani",system-ui,sans-serif;
}

/* ============ 基础 reset ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:100px}
body{
  margin:0;
  background:var(--ink-900);
  color:var(--text);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none;transition:color .2s ease-out,border-color .2s ease-out,background-color .2s ease-out,transform .2s ease-out}
button{font-family:inherit;cursor:pointer}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25;letter-spacing:.2px}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
::selection{background:rgba(123,92,255,.45);color:#fff}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:8px}
.num{font-family:var(--font-num);letter-spacing:.6px}

/* ============ 容器 ============ */
.container-xl{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px}
@media (min-width:1400px){.container-xl{max-width:1280px}}
@media (max-width:576px){.container-xl{padding-left:18px;padding-right:18px}}

/* ============ 通用板块 ============ */
.section{padding:96px 0;position:relative}
.section--alt{background:var(--ink-800)}
.section--deep{background:var(--ink-700)}
.sec-head{max-width:720px;margin-bottom:44px}
.sec-head h2{font-size:30px;margin-bottom:14px}
.sec-head p{color:var(--text-2);font-size:16px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  height:28px;padding:0 12px;margin-bottom:18px;
  border-radius:8px;border:1px solid rgba(0,224,198,.3);
  background:rgba(0,224,198,.08);
  color:var(--accent);font-size:13px;font-weight:600;letter-spacing:.4px;
}
.eyebrow--violet{border-color:rgba(123,92,255,.35);background:var(--primary-soft);color:#B6A5FF}
.sec-head h2{font-size:30px}

/* ============ 顶部导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1030;
  background:rgba(5,7,15,.28);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.06);
  transition:background .25s ease-out,box-shadow .25s ease-out,border-color .25s ease-out;
}
.site-header.is-stuck{
  background:rgba(5,7,15,.92);
  backdrop-filter:blur(20px) saturate(140%);
  -webkit-backdrop-filter:blur(20px) saturate(140%);
  box-shadow:0 14px 34px rgba(0,0,0,.45);
  border-bottom-color:rgba(255,255,255,.1);
}
.nav-inner{display:flex;align-items:center;gap:20px;height:72px;transition:height .25s ease-out}
.site-header.is-stuck .nav-inner{height:64px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:36px;height:36px;border-radius:11px;
  background:rgba(123,92,255,.14);
  border:1px solid rgba(123,92,255,.32);
  box-shadow:0 0 18px rgba(123,92,255,.25) inset;
}
.brand-text{font-size:17px;font-weight:700;letter-spacing:.3px;white-space:nowrap}
.brand-text em{font-style:normal;color:var(--accent)}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.main-nav .nav-link{
  position:relative;padding:10px 14px;border-radius:10px;
  font-size:15px;color:var(--text-2);white-space:nowrap;
}
.main-nav .nav-link:hover{color:var(--text);background:rgba(255,255,255,.06)}
.main-nav .nav-link.active{color:#fff}
.main-nav .nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;border-radius:2px;
  background:var(--accent);box-shadow:0 0 10px rgba(0,224,198,.85);
}
.nav-actions{display:flex;align-items:center;gap:10px}
.icon-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:12px;
  border:1px solid var(--line);background:rgba(255,255,255,.04);
  color:var(--text-2);transition:all .2s ease-out;
}
.icon-btn:hover{color:#fff;border-color:rgba(0,224,198,.5);background:rgba(0,224,198,.08)}
.offcanvas-glass{
  background:rgba(7,11,20,.94);
  backdrop-filter:blur(20px) saturate(140%);
  -webkit-backdrop-filter:blur(20px) saturate(140%);
  border-left:1px solid var(--line);color:var(--text);
}
.offcanvas-glass .offcanvas-header{border-bottom:1px solid var(--line);padding:18px 20px}
.offcanvas-glass .btn-close{filter:invert(1) grayscale(1) brightness(1.6);opacity:.7}
.mobile-nav{display:flex;flex-direction:column;padding:12px 20px 24px}
.mobile-nav a{
  display:flex;align-items:center;min-height:44px;
  padding:0 12px;border-radius:12px;font-size:16px;color:var(--text-2);
}
.mobile-nav a:hover{background:rgba(255,255,255,.06);color:#fff}
.mobile-nav a.active{color:#fff;background:rgba(123,92,255,.16);border:1px solid rgba(123,92,255,.3)}
.mobile-nav .btn-glow{margin-top:18px}

/* ============ 按钮 ============ */
.btn-glow{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border:0;border-radius:999px;
  background:linear-gradient(100deg,#7B5CFF 0%,#6C7BFF 52%,#00E0C6 100%);
  color:#fff;font-size:15px;font-weight:600;
  box-shadow:var(--shadow-glow);
  transition:transform .2s ease-out,box-shadow .2s ease-out,filter .2s ease-out;
}
.btn-glow:hover{transform:translateY(-2px);box-shadow:0 0 34px rgba(123,92,255,.7);filter:brightness(1.06);color:#fff}
.btn-glow:active{transform:translateY(0);filter:brightness(.95)}
.btn-glow[disabled],.btn-glow.is-loading{opacity:.55;cursor:not-allowed;transform:none;box-shadow:none}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:999px;
  border:1px solid var(--line-2);background:rgba(255,255,255,.04);
  color:var(--text);font-size:15px;font-weight:600;
  transition:all .2s ease-out;
}
.btn-ghost:hover{transform:translateY(-2px);border-color:rgba(0,224,198,.6);background:rgba(0,224,198,.08);color:#fff}
.btn-sm{height:38px;padding:0 18px;font-size:14px}
.btn-link-arrow{display:inline-flex;align-items:center;gap:8px;color:var(--accent);font-size:15px;font-weight:600}
.btn-link-arrow svg{transition:transform .2s ease-out}
.btn-link-arrow:hover{color:#7BFFE9}
.btn-link-arrow:hover svg{transform:translateX(4px)}

/* ============ 分类 Hero ============ */
.cat-hero{position:relative;isolation:isolate;overflow:hidden;padding:170px 0 88px}
.cat-hero::before{
  content:"";position:absolute;inset:0;z-index:-3;
  background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
}
.cat-hero::after{
  content:"";position:absolute;inset:0;z-index:-2;
  background:linear-gradient(100deg,rgba(5,7,15,.95) 0%,rgba(5,7,15,.86) 40%,rgba(5,7,15,.58) 72%,rgba(7,11,20,.78) 100%);
}
.cat-hero .glow{
  position:absolute;z-index:-1;left:-180px;top:-200px;width:640px;height:640px;
  background:radial-gradient(circle,rgba(123,92,255,.34),transparent 66%);
  pointer-events:none;
}
.cat-hero .grid-line{
  position:absolute;inset:0;z-index:-1;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:64px 64px;
  opacity:.55;
}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:22px}
.crumbs a:hover{color:var(--accent)}
.crumbs .sep{color:var(--text-3);opacity:.6}
.cat-hero h1{
  font-size:clamp(30px,4.2vw,46px);
  max-width:820px;
  margin-bottom:18px;
}
.cat-hero .hero-sub{max-width:720px;color:var(--text-2);font-size:17px}
.hero-kv{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-kv .kv{
  display:flex;align-items:baseline;gap:8px;
  padding:12px 18px;border-radius:14px;
  background:var(--glass);border:1px solid var(--line);
}
.hero-kv .kv b{font-family:var(--font-num);font-size:22px;color:#fff;font-weight:600}
.hero-kv .kv span{font-size:13px;color:var(--text-3)}
.jump-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:34px}
.jump-row a{
  display:inline-flex;align-items:center;gap:8px;
  height:42px;padding:0 18px;border-radius:999px;
  background:rgba(255,255,255,.05);border:1px solid var(--line);
  font-size:14px;color:var(--text-2);
}
.jump-row a:hover{color:#fff;border-color:rgba(0,224,198,.55);background:rgba(0,224,198,.1);transform:translateY(-2px)}
.jump-row a::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 8px rgba(0,224,198,.9)}

/* ============ 图文交替 ============ */
.alt-row{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.alt-row + .alt-row{margin-top:72px}
.alt-row.reverse .alt-media{order:2}
.alt-media{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow-card);
  aspect-ratio:16/10;background:var(--ink-700);
}
.alt-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease-out}
.alt-media:hover img{transform:scale(1.04)}
.alt-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,7,15,0) 45%,rgba(5,7,15,.62) 100%);
}
.alt-body h3{font-size:22px;margin-bottom:14px}
.alt-body p{color:var(--text-2);font-size:16px}
.alt-list{margin-top:22px;display:flex;flex-direction:column;gap:12px}
.alt-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--text-2)}
.alt-list li .dot{
  flex:0 0 auto;width:22px;height:22px;margin-top:3px;border-radius:7px;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(0,224,198,.12);border:1px solid rgba(0,224,198,.32);
  color:var(--accent);font-size:12px;font-weight:700;
}
.alt-list li strong{color:var(--text);font-weight:600}
.alt-body .btn-link-arrow{margin-top:24px}

/* ============ 双列信息清单 ============ */
.info-columns{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.info-card{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);
  padding:32px;box-shadow:var(--shadow-card);
}
.info-card h3{font-size:19px;margin-bottom:6px}
.info-card .sub{font-size:13px;color:var(--text-3);margin-bottom:20px}
.info-list li{
  display:flex;justify-content:space-between;gap:16px;
  padding:13px 0;border-bottom:1px dashed var(--line);
  font-size:15px;
}
.info-list li:last-child{border-bottom:0}
.info-list .k{color:var(--text-2)}
.info-list .v{color:#fff;font-weight:600}
.info-list .v.num{font-size:17px}
.tip-line{
  display:flex;gap:10px;align-items:flex-start;margin-top:20px;
  padding:14px 16px;border-radius:12px;
  background:rgba(255,176,32,.08);border:1px solid rgba(255,176,32,.25);
  color:#FFD79A;font-size:14px;line-height:1.7;
}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px;margin:0 auto}
.accordion-item{
  background:var(--glass);border:1px solid var(--line)!important;border-radius:16px!important;
  margin-bottom:14px;overflow:hidden;box-shadow:0 12px 30px rgba(0,0,0,.35);
}
.accordion-header{margin:0}
.accordion-button{
  background:transparent;color:var(--text);
  font-family:var(--font-cn);font-size:16px;font-weight:600;
  padding:20px 22px;border-radius:16px!important;
  box-shadow:none!important;
  transition:background .2s ease-out,box-shadow .2s ease-out;
}
.accordion-button:not(.collapsed){
  color:#fff;background:rgba(123,92,255,.12);
  box-shadow:inset 3px 0 0 var(--accent)!important;
}
.accordion-button::after{
  content:"+";background-image:none!important;
  width:26px;height:26px;display:inline-flex;align-items:center;justify-content:center;
  font-size:19px;font-weight:600;color:var(--accent);transform:none;
  transition:transform .2s ease-out;
}
.accordion-button:not(.collapsed)::after{content:"−";transform:rotate(180deg)}
.accordion-button:focus{z-index:3;border-color:transparent;box-shadow:inset 3px 0 0 var(--accent)!important}
.accordion-body{padding:0 22px 22px;color:var(--text-2);font-size:15px;line-height:1.85}

/* ============ CTA 条 ============ */
.cta-bar{
  position:relative;overflow:hidden;
  border-radius:var(--r-lg);
  border:1px solid rgba(123,92,255,.3);
  background:linear-gradient(120deg,rgba(123,92,255,.18),rgba(0,224,198,.1));
  padding:52px;
  display:grid;grid-template-columns:1.5fr 1fr;gap:40px;align-items:center;
  box-shadow:var(--shadow-card);
}
.cta-bar h2{font-size:28px;margin-bottom:14px}
.cta-bar p{color:var(--text-2);font-size:15px}
.cta-actions{display:flex;flex-direction:column;gap:14px}
.cta-actions .btn-glow,.cta-actions .btn-ghost{width:100%}
.cta-meta{font-size:13px;color:var(--text-3);margin-top:6px;display:flex;flex-wrap:wrap;gap:14px}
.cta-meta span{display:inline-flex;align-items:center;gap:6px}

/* ============ 相关阅读卡 ============ */
.read-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.read-card{
  display:flex;flex-direction:column;
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--shadow-card);
  transition:transform .25s ease-out,border-color .25s ease-out,box-shadow .25s ease-out;
}
.read-card:hover{transform:translateY(-4px);border-color:rgba(0,224,198,.4)}
.read-card .thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--ink-700)}
.read-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease-out}
.read-card:hover .thumb img{transform:scale(1.04)}
.read-card .thumb .badge-float{position:absolute;left:14px;top:14px}
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 10px;border-radius:8px;
  font-size:12px;font-weight:600;
  background:rgba(255,255,255,.1);border:1px solid var(--line-2);color:var(--text);
  backdrop-filter:blur(8px);
}
.badge--hot{background:rgba(255,77,157,.16);border-color:rgba(255,77,157,.4);color:#FFA3CB}
.badge--accent{background:rgba(0,224,198,.14);border-color:rgba(0,224,198,.35);color:#7BFFE9}
.badge--violet{background:var(--primary-soft);border-color:rgba(123,92,255,.38);color:#BFB2FF}
.read-card .body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.read-card h3{font-size:17px;line-height:1.5}
.read-card p{font-size:14px;color:var(--text-2);flex:1}
.read-card .meta{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--text-3)}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--ink-800);
  border-top:1px solid var(--line);
  padding:72px 0 28px;
  margin-top:0;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:40px}
.footer-brand .brand{margin-bottom:18px}
.footer-brand p{font-size:14px;color:var(--text-2);line-height:1.85;max-width:360px}
.footer-col h4{font-size:15px;margin-bottom:18px;color:#fff}
.footer-col ul li{margin-bottom:12px}
.footer-col ul a{font-size:14px;color:var(--text-2);display:inline-block}
.footer-col ul a:hover{color:var(--accent);transform:translateX(2px)}
.footer-note{font-size:14px;color:var(--text-2);line-height:2}
.footer-note strong{color:var(--text);font-weight:600}
.footer-bottom{
  margin-top:52px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}
.footer-bottom .links{display:flex;gap:20px}
.footer-bottom .links a:hover{color:var(--accent)}

/* ============ 入场动效 ============ */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .55s ease-out,transform .55s ease-out}
.reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
  *{animation:none!important;transition:none!important}
}

/* ============ 响应式 ============ */
@media (max-width:1400px){
  .cat-hero .glow{left:-220px}
}
@media (max-width:1200px){
  .section{padding:80px 0}
  .alt-row{gap:40px}
  .cta-bar{grid-template-columns:1fr;padding:44px}
}
@media (max-width:992px){
  .main-nav{display:none}
  .nav-inner{height:64px}
  .cat-hero{padding:130px 0 68px}
  .section{padding:64px 0}
  .sec-head{margin-bottom:32px}
  .sec-head h2{font-size:26px}
  .alt-row{grid-template-columns:1fr;gap:26px}
  .alt-row + .alt-row{margin-top:48px}
  .alt-row.reverse .alt-media{order:0}
  .info-columns{grid-template-columns:1fr}
  .read-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:768px){
  body{font-size:16px}
  .cat-hero{padding:118px 0 56px}
  .cat-hero .hero-sub{font-size:16px}
  .hero-kv{gap:10px}
  .hero-kv .kv{padding:10px 14px;flex:1 1 calc(50% - 5px)}
  .section{padding:56px 0}
  .sec-head h2{font-size:24px}
  .cta-bar{padding:32px 24px;border-radius:20px}
  .cta-bar h2{font-size:23px}
  .read-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:576px){
  .brand-text{font-size:16px}
  .alt-body h3{font-size:19px}
  .info-card{padding:24px}
  .accordion-button{font-size:15px;padding:17px 18px}
  .accordion-body{padding:0 18px 18px}
  .cta-actions .btn-glow,.cta-actions .btn-ghost{height:46px}
}