/* roulang page: index */
/* ============ 设计变量 ============ */
:root{
  --bg:#070B12;
  --bg-deep:#0A1020;
  --bg-soft:#0E1A2B;
  --glass:rgba(255,255,255,.06);
  --glass-2:rgba(255,255,255,.10);
  --border:rgba(255,255,255,.10);
  --border-strong:rgba(255,255,255,.18);
  --cyan:#35E6D4;
  --cyan-dark:#1E7FB8;
  --orange:#FF7A45;
  --text:#E9EFF8;
  --text-2:#9DABC2;
  --text-3:#6F7E96;
  --radius-xl:26px;
  --radius-lg:22px;
  --radius:18px;
  --radius-sm:14px;
  --shadow:0 18px 50px rgba(0,0,0,.35);
  --shadow-soft:0 10px 30px rgba(0,0,0,.28);
  --glow:0 0 0 1px rgba(53,230,212,.20),0 18px 50px rgba(0,0,0,.45);
  --maxw:1220px;
}
/* ============ 基础重置 ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;line-height:1.85;color:var(--text);
  background-color:var(--bg);
  background-image:
    radial-gradient(1100px 620px at 88% -8%, rgba(53,230,212,.12), transparent 62%),
    radial-gradient(900px 520px at 0% 6%, rgba(255,122,69,.075), transparent 60%),
    radial-gradient(900px 700px at 50% 104%, rgba(30,127,184,.12), transparent 65%);
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;opacity:.55;
  background-image:
    linear-gradient(rgba(255,255,255,.028) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.028) 1px,transparent 1px);
  background-size:72px 72px;
  -webkit-mask-image:radial-gradient(circle at 50% 18%,#000,transparent 78%);
  mask-image:radial-gradient(circle at 50% 18%,#000,transparent 78%);
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;line-height:1.35;letter-spacing:0;font-weight:700}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
::selection{background:rgba(53,230,212,.28);color:#fff}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}
body,button,a{--tab:tabular-nums}
.num{font-variant-numeric:tabular-nums}

/* ============ 布局容器 ============ */
.container{width:min(100% - 32px,var(--maxw));margin-inline:auto}
main{position:relative;z-index:1}
.section{padding:clamp(56px,8vw,110px) 0;position:relative;z-index:1}
.section-tight{padding:clamp(40px,5vw,72px) 0}
.section-head{max-width:780px;margin-bottom:clamp(32px,4vw,52px)}
.section-head h2{font-size:clamp(26px,3.2vw,36px);font-weight:800}
.section-head p{margin-top:14px;color:var(--text-2);font-size:17px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  background:rgba(53,230,212,.10);border:1px solid rgba(53,230,212,.28);
  color:var(--cyan);font-size:13px;font-weight:600;letter-spacing:.04em;
  margin-bottom:18px;
}
.eyebrow i{font-size:12px}
.divider{height:1px;background:linear-gradient(90deg,transparent,rgba(255,255,255,.14),transparent);border:0;margin:0}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  height:50px;padding:0 26px;border-radius:var(--radius-sm);
  font-size:16px;font-weight:600;cursor:pointer;border:1px solid transparent;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease,opacity .2s ease;
  white-space:nowrap;
}
.btn i{font-size:14px}
.btn-primary{
  background:linear-gradient(135deg,#35E6D4 0%,#22A9C9 52%,#1E6FB8 100%);
  color:#03181E;
  box-shadow:0 12px 34px rgba(53,230,212,.28);
}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 18px 44px rgba(53,230,212,.42)}
.btn-primary:active{transform:translateY(0);box-shadow:0 8px 22px rgba(53,230,212,.30)}
.btn-ghost{
  background:var(--glass);border-color:var(--border);color:var(--text);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.btn-ghost:hover{transform:translateY(-3px);border-color:rgba(53,230,212,.5);background:rgba(53,230,212,.09)}
.btn-ghost:active{transform:translateY(0)}
.btn-warm{
  background:linear-gradient(135deg,#FF9A5E,#FF7A45);color:#23100A;
  box-shadow:0 12px 32px rgba(255,122,69,.28);
}
.btn-warm:hover{transform:translateY(-3px);box-shadow:0 18px 42px rgba(255,122,69,.40)}
.btn-sm{height:44px;padding:0 20px;font-size:15px}
.btn-block{width:100%}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}
.link-more{
  display:inline-flex;align-items:center;gap:8px;color:var(--cyan);font-weight:600;
  font-size:15px;position:relative;padding-bottom:2px;
}
.link-more::after{
  content:"";position:absolute;left:0;bottom:-2px;width:100%;height:1px;
  background:currentColor;transform:scaleX(0);transform-origin:left;transition:transform .28s ease;
}
.link-more:hover::after{transform:scaleX(1)}
.link-more i{transition:transform .25s ease}
.link-more:hover i{transform:translateX(4px)}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:28px;padding:0 12px;border-radius:999px;
  font-size:12.5px;font-weight:600;letter-spacing:.02em;
}
.badge-cyan{background:rgba(53,230,212,.14);color:#7FF3E7;border:1px solid rgba(53,230,212,.30)}
.badge-warm{background:rgba(255,122,69,.14);color:#FFB392;border:1px solid rgba(255,122,69,.30)}
.badge-soft{background:rgba(255,255,255,.07);color:var(--text-2);border:1px solid var(--border)}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(7,11,18,.72);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid transparent;
  transition:background .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.site-header.is-scrolled{
  background:rgba(7,11,18,.92);
  border-bottom-color:var(--border);
  box-shadow:0 10px 34px rgba(0,0,0,.42);
}
.nav-wrap{display:flex;align-items:center;gap:28px;height:76px}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand-mark{
  width:42px;height:42px;border-radius:13px;display:grid;place-items:center;
  background:linear-gradient(140deg,rgba(53,230,212,.9),rgba(30,111,184,.9));
  color:#04191F;font-size:18px;
  box-shadow:0 10px 26px rgba(53,230,212,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text strong{font-size:16.5px;font-weight:800;letter-spacing:.01em}
.brand-text em{
  font-style:normal;font-size:11.5px;color:var(--text-3);letter-spacing:.08em;
}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-links a{
  position:relative;padding:10px 15px;border-radius:11px;
  font-size:15px;font-weight:500;color:var(--text-2);
  transition:color .22s ease,background .22s ease;
}
.nav-links a:hover{color:var(--text);background:rgba(255,255,255,.06)}
.nav-links a.active{color:var(--cyan);background:rgba(53,230,212,.10)}
.nav-links a.active::after{
  content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);
  width:20px;height:2px;border-radius:2px;background:var(--cyan);
  box-shadow:0 0 12px rgba(53,230,212,.85);
}
.nav-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.menu-btn{
  display:none;width:44px;height:44px;border-radius:12px;
  background:var(--glass);border:1px solid var(--border);color:var(--text);
  cursor:pointer;transition:background .2s ease,border-color .2s ease;
}
.menu-btn:hover{background:rgba(53,230,212,.12);border-color:rgba(53,230,212,.4)}

/* ============ 首屏 ============ */
.hero{position:relative;overflow:hidden;padding:clamp(52px,7vw,92px) 0 clamp(48px,6vw,86px)}
.hero::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  opacity:.34;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,18,.62) 0%,rgba(7,11,18,.90) 62%,var(--bg) 100%);
}
.hero-grid{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.12fr .88fr;gap:clamp(32px,5vw,64px);align-items:center;
}
.hero h1{font-size:clamp(30px,4.4vw,52px);font-weight:800;line-height:1.28}
.hero h1 .hl{
  background:linear-gradient(120deg,#35E6D4,#7FE9FF 55%,#FFB392);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{margin-top:22px;font-size:17.5px;color:var(--text-2);max-width:640px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.hero-points{display:flex;flex-wrap:wrap;gap:14px 26px;margin-top:34px}
.hero-points li{display:flex;align-items:center;gap:9px;font-size:14.5px;color:var(--text-2)}
.hero-points i{color:var(--cyan);font-size:14px}

.hero-card{
  position:relative;border-radius:var(--radius-xl);overflow:hidden;
  border:1px solid var(--border);background:var(--glass);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow);
}
.hero-card-media{position:relative;height:236px;overflow:hidden}
.hero-card-media img{width:100%;height:100%;object-fit:cover}
.hero-card-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,18,.14) 0%,rgba(7,11,18,.86) 100%);
}
.hero-card-media .badge{position:absolute;top:16px;left:16px;z-index:2}
.hero-card-body{padding:22px 24px 26px}
.hero-card-body h2{font-size:20px;font-weight:700}
.hero-card-body p{margin-top:10px;font-size:14.5px;color:var(--text-2)}
.hero-card-body .btn{margin-top:20px}
.float-badge{
  position:absolute;z-index:3;display:inline-flex;align-items:center;gap:8px;
  padding:9px 14px;border-radius:999px;font-size:13px;font-weight:600;
  background:rgba(10,16,32,.82);border:1px solid var(--border-strong);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  box-shadow:var(--shadow-soft);color:var(--text);
  animation:floaty 4.4s ease-in-out infinite;
}
.float-badge i{color:var(--cyan)}
.fb-1{top:18px;right:18px}
.fb-2{bottom:-14px;left:-14px;animation-delay:.9s}
@keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-7px)}}

/* ============ 数据条 ============ */
.stats-bar{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  background:var(--border);border:1px solid var(--border);
  border-radius:var(--radius-lg);overflow:hidden;
}
.stat{
  background:linear-gradient(180deg,rgba(255,255,255,.055),rgba(255,255,255,.02));
  padding:28px 24px;transition:background .25s ease;
}
.stat:hover{background:rgba(53,230,212,.08)}
.stat strong{display:block;font-size:30px;font-weight:800;color:var(--cyan);font-variant-numeric:tabular-nums}
.stat span{display:block;margin-top:6px;font-size:14.5px;color:var(--text-2)}
.stat em{display:block;margin-top:8px;font-style:normal;font-size:12.5px;color:var(--text-3)}

/* ============ Bento 网格 ============ */
.bento{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.card{
  position:relative;border-radius:var(--radius);overflow:hidden;
  background:var(--glass);border:1px solid var(--border);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  transition:transform .26s ease,border-color .26s ease,box-shadow .26s ease,background .26s ease;
  display:flex;flex-direction:column;
}
.card:hover{
  transform:translateY(-4px);
  border-color:rgba(53,230,212,.45);
  background:rgba(53,230,212,.06);
  box-shadow:0 18px 50px rgba(0,0,0,.42),0 0 0 1px rgba(53,230,212,.18);
}
.bento-main{grid-column:1/3;grid-row:1/3}
.bento-item{grid-column:span 2}
.bento-main .card-media{flex:1;min-height:300px}
.card-media{position:relative;overflow:hidden}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.card:hover .card-media img{transform:scale(1.05)}
.card-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,18,.10) 0%,rgba(7,11,18,.82) 100%);
}
.card-media .badge{position:absolute;top:16px;left:16px;z-index:2}
.card-body{padding:22px 24px 26px;position:relative;z-index:2}
.bento-main .card-body{
  position:absolute;bottom:0;left:0;right:0;
  background:linear-gradient(180deg,transparent,rgba(7,11,18,.88) 45%);
  padding:34px 28px 28px;
}
.card-body h3{font-size:19px;font-weight:700}
.bento-main .card-body h3{font-size:24px}
.card-body p{margin-top:10px;font-size:14.6px;color:var(--text-2)}
.card-link{display:inline-flex;align-items:center;gap:8px;margin-top:16px;color:var(--cyan);font-size:14.5px;font-weight:600}
.card-link i{transition:transform .25s ease}
.card:hover .card-link i{transform:translateX(4px)}

/* ============ 时间线 ============ */
.timeline{display:grid;gap:16px;counter-reset:step}
.tl-item{
  display:grid;grid-template-columns:60px 1fr;gap:22px;align-items:flex-start;
  padding:22px 26px;border-radius:var(--radius);
  background:var(--glass);border:1px solid var(--border);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  transition:transform .24s ease,border-color .24s ease,background .24s ease;
}
.tl-item:hover{transform:translateY(-3px);border-color:rgba(53,230,212,.4);background:rgba(53,230,212,.06)}
.tl-num{
  width:48px;height:48px;border-radius:15px;display:grid;place-items:center;
  font-weight:800;font-size:17px;color:#04191F;
  background:linear-gradient(140deg,#35E6D4,#1E7FB8);
  box-shadow:0 10px 24px rgba(53,230,212,.26);
}
.tl-body h3{font-size:18px;font-weight:700}
.tl-body p{margin-top:8px;font-size:14.8px;color:var(--text-2)}

/* ============ 评价轮播 ============ */
.review-shell{
  position:relative;border-radius:var(--radius-lg);
  border:1px solid var(--border);background:var(--glass);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  padding:clamp(28px,4vw,48px);box-shadow:var(--shadow);
}
.review{display:none;gap:26px;align-items:flex-start;animation:fadeUp .45s ease}
.review.active{display:grid;grid-template-columns:88px 1fr}
@keyframes fadeUp{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}
.review-avatar{
  width:76px;height:76px;border-radius:50%;overflow:hidden;
  border:2px solid rgba(53,230,212,.45);box-shadow:0 0 0 6px rgba(53,230,212,.08);
}
.review-avatar img{width:100%;height:100%;object-fit:cover}
.review-stars{display:flex;gap:5px;color:var(--cyan);font-size:14px}
.review-text{margin-top:14px;font-size:16.5px;color:var(--text);line-height:1.9}
.review-who{margin-top:16px;font-size:14px;color:var(--text-2)}
.review-who strong{color:var(--text);font-weight:700}
.review-nav{display:flex;align-items:center;justify-content:space-between;margin-top:30px;gap:16px}
.review-dots{display:flex;gap:9px}
.review-dots button{
  width:9px;height:9px;padding:0;border-radius:999px;border:0;cursor:pointer;
  background:rgba(255,255,255,.20);transition:width .25s ease,background .25s ease;
}
.review-dots button.active{width:26px;background:var(--cyan);box-shadow:0 0 12px rgba(53,230,212,.7)}
.round-btn{
  width:46px;height:46px;border-radius:50%;display:grid;place-items:center;cursor:pointer;
  background:var(--glass);border:1px solid var(--border);color:var(--text);
  transition:transform .22s ease,border-color .22s ease,background .22s ease;
}
.round-btn:hover{transform:translateY(-2px);border-color:rgba(53,230,212,.5);background:rgba(53,230,212,.12)}
.review-arrows{display:flex;gap:10px}

/* ============ 保障条 ============ */
.assure{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
}
.assure-item{
  display:flex;align-items:center;gap:14px;padding:20px 22px;border-radius:var(--radius);
  background:var(--glass);border:1px solid var(--border);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  transition:transform .24s ease,border-color .24s ease;
}
.assure-item:hover{transform:translateY(-3px);border-color:rgba(53,230,212,.4)}
.assure-icon{
  width:44px;height:44px;border-radius:13px;display:grid;place-items:center;flex-shrink:0;
  background:rgba(53,230,212,.12);border:1px solid rgba(53,230,212,.28);color:var(--cyan);font-size:17px;
}
.assure-item strong{display:block;font-size:15.5px;font-weight:700}
.assure-item span{display:block;font-size:13px;color:var(--text-3);margin-top:2px}

/* ============ 最新信息 CMS ============ */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.post-card{
  display:flex;flex-direction:column;overflow:hidden;
  border-radius:var(--radius);border:1px solid var(--border);
  background:var(--glass);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  transition:transform .26s ease,border-color .26s ease,box-shadow .26s ease;
}
.post-card:hover{transform:translateY(-4px);border-color:rgba(53,230,212,.45);box-shadow:var(--glow)}
.post-thumb{position:relative;height:178px;overflow:hidden}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.post-card:hover .post-thumb img{transform:scale(1.05)}
.post-thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,11,18,0) 40%,rgba(7,11,18,.72) 100%)}
.post-body{padding:20px 22px 24px;display:flex;flex-direction:column;flex:1}
.post-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px}
.post-meta time{font-size:12.5px;color:var(--text-3);font-variant-numeric:tabular-nums}
.post-body h3{font-size:17.5px;font-weight:700;line-height:1.55}
.post-body p{margin-top:10px;font-size:14.3px;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.post-more{margin-top:auto;padding-top:16px;display:inline-flex;align-items:center;gap:8px;color:var(--cyan);font-size:14px;font-weight:600}
.post-more i{transition:transform .25s ease}
.post-card:hover .post-more i{transform:translateX(4px)}
.empty-state{
  grid-column:1/-1;padding:56px 28px;text-align:center;
  border-radius:var(--radius);border:1px dashed var(--border-strong);background:var(--glass);
}
.empty-state i{font-size:30px;color:var(--cyan);margin-bottom:14px;display:block}
.empty-state strong{display:block;font-size:17px}
.empty-state span{display:block;margin-top:8px;color:var(--text-2);font-size:14.5px}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:14px}
.faq-item{
  border-radius:var(--radius);border:1px solid var(--border);background:var(--glass);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  transition:border-color .24s ease,background .24s ease;
  overflow:hidden;
}
.faq-item[open]{border-color:rgba(53,230,212,.42);background:rgba(53,230,212,.055)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;font-size:16.5px;font-weight:600;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .ico{
  width:30px;height:30px;border-radius:50%;flex-shrink:0;display:grid;place-items:center;
  background:rgba(53,230,212,.14);border:1px solid rgba(53,230,212,.3);color:var(--cyan);
  font-size:12px;transition:transform .3s ease,background .3s ease;
}
.faq-item[open] summary .ico{transform:rotate(135deg);background:rgba(53,230,212,.24)}
.faq-answer{padding:0 24px 22px;color:var(--text-2);font-size:15px}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--radius-xl);
  border:1px solid rgba(53,230,212,.24);
  background:linear-gradient(120deg,rgba(53,230,212,.14),rgba(30,111,184,.14) 48%,rgba(255,122,69,.12));
  padding:clamp(34px,5vw,60px);
  box-shadow:var(--shadow);
}
.cta-band::before{
  content:"";position:absolute;inset:0;opacity:.22;
  background:url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
}
.cta-inner{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:28px;align-items:center;justify-content:space-between}
.cta-inner h2{font-size:clamp(24px,3vw,34px);font-weight:800}
.cta-inner p{margin-top:12px;color:var(--text-2);font-size:16px;max-width:640px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;z-index:1;margin-top:clamp(48px,7vw,96px);
  border-top:1px solid var(--border);
  background:linear-gradient(180deg,rgba(10,16,32,.72),rgba(7,11,18,.96));
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;
  padding:clamp(44px,6vw,72px) 0 40px;
}
.footer-brand .brand{margin-bottom:18px}
.footer-brand p{color:var(--text-2);font-size:14.5px;max-width:360px}
.footer-col h3{font-size:15.5px;font-weight:700;margin-bottom:18px;color:var(--text)}
.footer-col li+li{margin-top:11px}
.footer-col a{color:var(--text-2);font-size:14.5px;transition:color .2s ease,padding-left .2s ease}
.footer-col a:hover{color:var(--cyan);padding-left:4px}
.footer-col .contact-line{display:flex;align-items:flex-start;gap:10px;color:var(--text-2);font-size:14.5px}
.footer-col .contact-line i{color:var(--cyan);margin-top:6px;font-size:13px}
.footer-bottom{border-top:1px solid var(--border)}
.footer-bottom-inner{
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
  padding:22px 0;font-size:13.5px;color:var(--text-3);
}
.to-top{
  display:inline-flex;align-items:center;gap:8px;color:var(--text-2);
  padding:9px 16px;border-radius:999px;border:1px solid var(--border);background:var(--glass);
  transition:transform .22s ease,color .22s ease,border-color .22s ease;
}
.to-top:hover{transform:translateY(-3px);color:var(--cyan);border-color:rgba(53,230,212,.45)}

/* ============ 响应式 ============ */
@media (max-width:1200px){
  .hero-grid{gap:40px}
  .brand-text em{display:none}
}
@media (max-width:992px){
  .nav-links{gap:2px}
  .nav-links a{padding:10px 11px;font-size:14.5px}
  .hero-grid{grid-template-columns:1fr}
  .hero-card{max-width:560px}
  .fb-2{bottom:14px;left:14px}
  .stats-bar{grid-template-columns:repeat(2,1fr)}
  .bento{grid-template-columns:repeat(2,1fr)}
  .bento-main{grid-column:span 2;grid-row:auto}
  .bento-main .card-media{min-height:250px}
  .bento-main .card-body{position:relative;background:none;padding:22px 24px 26px}
  .bento-item{grid-column:span 1}
  .assure{grid-template-columns:repeat(2,1fr)}
  .post-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
}
@media (max-width:900px){
  .nav-links{
    position:fixed;top:88px;left:16px;right:16px;z-index:70;
    flex-direction:column;align-items:stretch;gap:6px;margin-left:0;
    padding:16px;border-radius:var(--radius-lg);
    background:rgba(8,13,22,.97);border:1px solid var(--border);
    box-shadow:var(--shadow);display:none;
  }
  .nav-links.open{display:flex}
  .nav-links a{padding:14px 16px;font-size:15.5px}
  .nav-links a.active::after{left:16px;transform:none;bottom:8px}
  .menu-btn{display:grid;place-items:center}
  .nav-actions .btn{display:none}
}
@media (max-width:768px){
  .nav-wrap{height:68px}
  .nav-links{top:80px}
  .review.active{grid-template-columns:1fr}
  .review-avatar{width:64px;height:64px}
  .post-grid{grid-template-columns:1fr}
  .bento{grid-template-columns:1fr}
  .bento-main,.bento-item{grid-column:span 1}
  .stats-bar{grid-template-columns:1fr}
  .assure{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .hero-actions .btn{width:100%}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .tl-item{grid-template-columns:48px 1fr;gap:16px;padding:18px 20px}
  .tl-num{width:42px;height:42px;border-radius:13px;font-size:15px}
}
@media (max-width:520px){
  body{font-size:15.5px}
  .hero h1{font-size:30px}
  .hero-sub{font-size:16px}
  .section-head h2{font-size:24px}
  .faq-item summary{font-size:15.5px;padding:18px 18px}
  .faq-answer{padding:0 18px 18px}
  .card-body{padding:18px 18px 22px}
  .cta-inner h2{font-size:23px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
}

/* roulang page: article */
:root{
  --bg:#070B12;
  --bg-2:#0A1020;
  --bg-3:#0E1A2B;
  --glass:rgba(255,255,255,.06);
  --glass-2:rgba(255,255,255,.09);
  --border:rgba(255,255,255,.10);
  --border-strong:rgba(255,255,255,.18);
  --cyan:#35E6D4;
  --cyan-deep:#1E9FB8;
  --orange:#FF7A45;
  --text:#E8EEF6;
  --text-2:#B4C2D4;
  --muted:#8697AC;
  --r-card:18px;
  --r-btn:14px;
  --shadow:0 18px 50px rgba(0,0,0,.35);
  --shadow-lg:0 28px 70px rgba(0,0,0,.48);
  --container:1220px;
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  min-height:100%;
  background:var(--bg);
  color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background:
    radial-gradient(920px 620px at 10% -8%, rgba(53,230,212,.11), transparent 62%),
    radial-gradient(820px 540px at 94% 4%, rgba(255,122,69,.08), transparent 64%),
    linear-gradient(rgba(255,255,255,.020) 1px, transparent 1px) 0 0/100% 34px,
    linear-gradient(90deg, rgba(255,255,255,.020) 1px, transparent 1px) 0 0/34px 100%;
}
img{max-width:100%;display:block;}
a{color:inherit;}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.34;letter-spacing:.01em;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
::selection{background:rgba(53,230,212,.32);color:#fff;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:8px;}
.tnum{font-variant-numeric:tabular-nums;}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
  position:relative;
  z-index:1;
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:9px;
  height:50px;
  padding:0 26px;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  font-size:15px;
  font-weight:700;
  text-decoration:none;
  cursor:pointer;
  white-space:nowrap;
  transition:transform .22s ease, box-shadow .25s ease, background .25s ease, border-color .25s ease, color .25s ease;
}
.btn-primary{
  color:#04131A;
  background:linear-gradient(120deg,var(--cyan),#2AA6E0);
  box-shadow:0 14px 34px rgba(53,230,212,.28);
}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 20px 46px rgba(53,230,212,.42);}
.btn-primary:active{transform:translateY(-1px);}
.btn-ghost{
  color:var(--text);
  background:var(--glass);
  border-color:var(--border-strong);
  backdrop-filter:blur(10px);
}
.btn-ghost:hover{color:#fff;border-color:rgba(53,230,212,.55);transform:translateY(-3px);background:var(--glass-2);}
.btn-sm{height:42px;padding:0 18px;font-size:14px;border-radius:12px;}

/* ============ 徽章与标签 ============ */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 13px;
  border-radius:999px;
  font-size:12.5px;
  font-weight:700;
  letter-spacing:.03em;
  border:1px solid var(--border);
  background:var(--glass);
  color:var(--text-2);
}
.badge-cyan{color:var(--cyan);border-color:rgba(53,230,212,.35);background:rgba(53,230,212,.10);}
.badge-orange{color:var(--orange);border-color:rgba(255,122,69,.36);background:rgba(255,122,69,.10);}

/* ============ 导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(10,16,32,.74);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--border);
  transition:background .3s ease, box-shadow .3s ease;
}
.site-header.scrolled{background:rgba(7,11,18,.94);box-shadow:0 12px 34px rgba(0,0,0,.5);}
.nav-wrap{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  min-height:76px;
}
.brand{display:flex;align-items:center;gap:13px;text-decoration:none;color:var(--text);}
.brand-mark{
  width:44px;height:44px;flex:none;border-radius:14px;
  display:grid;place-items:center;
  font-size:18px;color:#04131A;
  background:linear-gradient(135deg,var(--cyan),#2AA6E0);
  box-shadow:0 0 0 1px rgba(53,230,212,.35), 0 12px 28px rgba(53,230,212,.26);
}
.brand-text{display:flex;flex-direction:column;line-height:1.28;}
.brand-text strong{font-size:16.5px;font-weight:800;}
.brand-text em{font-style:normal;font-size:11.5px;color:var(--muted);letter-spacing:.07em;}
.nav-links{display:flex;align-items:center;gap:6px;}
.nav-links a{
  position:relative;
  padding:10px 15px;
  border-radius:999px;
  font-size:15px;
  font-weight:500;
  color:var(--text-2);
  text-decoration:none;
  transition:color .25s ease, background .25s ease, box-shadow .25s ease;
}
.nav-links a:hover{color:#fff;background:rgba(255,255,255,.07);}
.nav-links a.active{
  color:var(--cyan);
  background:rgba(53,230,212,.10);
  box-shadow:inset 0 0 0 1px rgba(53,230,212,.28);
}
.nav-actions{display:flex;align-items:center;gap:12px;}
.menu-btn{
  display:none;
  width:44px;height:44px;
  border-radius:12px;
  border:1px solid var(--border-strong);
  background:var(--glass);
  color:var(--text);
  font-size:17px;
  cursor:pointer;
}

/* ============ 内页顶部条 ============ */
.page-hero{
  position:relative;
  padding:48px 0 42px;
  border-bottom:1px solid var(--border);
  overflow:hidden;
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:linear-gradient(180deg, rgba(7,11,18,.80), rgba(7,11,18,.94)), url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  opacity:.55;
}
.page-hero > .container{position:relative;z-index:2;}

.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:9px;
  font-size:13.5px;
  color:var(--muted);
  margin-bottom:20px;
}
.breadcrumb a{color:var(--text-2);text-decoration:none;transition:color .2s ease;}
.breadcrumb a:hover{color:var(--cyan);}
.breadcrumb .sep{color:rgba(255,255,255,.22);}
.breadcrumb .current{color:var(--cyan);}

.article-head{max-width:900px;}
.article-head h1{
  font-size:40px;
  font-weight:800;
  line-height:1.32;
  color:#fff;
  margin:14px 0 20px;
}
.article-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px 20px;
  font-size:13.5px;
  color:var(--muted);
}
.article-meta .meta-item{display:inline-flex;align-items:center;gap:7px;}
.article-meta .meta-item i{color:var(--cyan);font-size:13px;}

/* ============ 文章主区 ============ */
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,820px) 300px;
  gap:48px;
  align-items:start;
  padding:56px 0 40px;
}
.article-main{
  min-width:0;
  background:var(--bg-2);
  border:1px solid var(--border);
  border-radius:var(--r-card);
  padding:44px 46px 40px;
  box-shadow:var(--shadow);
}
.article-body{
  font-size:17px;
  line-height:1.9;
  color:var(--text-2);
  word-wrap:break-word;
}
.article-body h2{
  font-size:26px;
  color:#fff;
  margin:46px 0 16px;
  padding-left:15px;
  border-left:3px solid var(--cyan);
}
.article-body h2:first-child{margin-top:0;}
.article-body h3{
  font-size:20px;
  color:#fff;
  margin:34px 0 12px;
}
.article-body h4{font-size:17px;color:#fff;margin:26px 0 10px;}
.article-body p{margin:0 0 18px;}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:24px;}
.article-body ul li{list-style:disc;}
.article-body ol li{list-style:decimal;}
.article-body li{margin-bottom:9px;}
.article-body a{color:var(--cyan);text-decoration:none;border-bottom:1px solid rgba(53,230,212,.4);}
.article-body a:hover{border-bottom-color:var(--cyan);}
.article-body img{
  max-width:100%;
  height:auto;
  border-radius:14px;
  border:1px solid var(--border);
  margin:24px 0;
}
.article-body blockquote{
  margin:24px 0;
  padding:18px 22px;
  border-left:3px solid var(--orange);
  border-radius:0 14px 14px 0;
  background:rgba(255,122,69,.08);
  color:var(--text);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body table{
  width:100%;
  border-collapse:collapse;
  margin:24px 0;
  font-size:15px;
  border-radius:12px;
  overflow:hidden;
}
.article-body th,.article-body td{
  border:1px solid var(--border);
  padding:12px 14px;
  text-align:left;
  vertical-align:top;
}
.article-body th{background:rgba(255,255,255,.055);color:#fff;font-weight:700;}
.article-body code{
  background:rgba(53,230,212,.11);
  color:var(--cyan);
  padding:2px 7px;
  border-radius:6px;
  font-size:.92em;
}
.article-body pre{
  background:#0A1220;
  border:1px solid var(--border);
  border-radius:14px;
  padding:18px 20px;
  overflow:auto;
  margin:24px 0;
}
.article-body pre code{background:none;color:var(--text-2);padding:0;}
.article-body hr{border:none;border-top:1px solid var(--border);margin:34px 0;}

/* 标签与分享 */
.article-foot{
  margin-top:44px;
  padding-top:26px;
  border-top:1px solid var(--border);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:18px;
}
.tag-list{display:flex;flex-wrap:wrap;gap:9px;}
.tag-list span{
  padding:6px 14px;
  border-radius:999px;
  font-size:13px;
  color:var(--text-2);
  background:var(--glass);
  border:1px solid var(--border);
  transition:border-color .22s ease, color .22s ease;
}
.tag-list span:hover{color:var(--cyan);border-color:rgba(53,230,212,.45);}
.share-box{display:flex;align-items:center;gap:10px;font-size:13.5px;color:var(--muted);}
.share-box a{
  width:38px;height:38px;
  display:grid;place-items:center;
  border-radius:12px;
  color:var(--text-2);
  background:var(--glass);
  border:1px solid var(--border);
  text-decoration:none;
  transition:color .22s ease, border-color .22s ease, transform .22s ease;
}
.share-box a:hover{color:var(--cyan);border-color:rgba(53,230,212,.5);transform:translateY(-2px);}

/* 空态 */
.empty-state{
  text-align:center;
  padding:56px 24px;
  border-radius:var(--r-card);
  border:1px dashed var(--border-strong);
  background:var(--glass);
}
.empty-state i{font-size:34px;color:var(--cyan);}
.empty-state h2{font-size:23px;color:#fff;margin:16px 0 10px;}
.empty-state p{color:var(--muted);font-size:15px;margin-bottom:24px;}

/* ============ 侧栏 ============ */
.article-side{
  position:sticky;
  top:100px;
  display:flex;
  flex-direction:column;
  gap:20px;
}
.side-card{
  border-radius:var(--r-card);
  border:1px solid var(--border);
  background:var(--glass);
  backdrop-filter:blur(14px);
  padding:22px 22px 24px;
  box-shadow:var(--shadow);
}
.side-title{
  display:flex;
  align-items:center;
  gap:9px;
  font-size:15.5px;
  color:#fff;
  margin-bottom:14px;
}
.side-title i{color:var(--cyan);font-size:14px;}
.toc{display:flex;flex-direction:column;gap:3px;}
.toc a{
  display:block;
  padding:8px 12px;
  border-radius:10px;
  font-size:14px;
  line-height:1.6;
  color:var(--muted);
  text-decoration:none;
  border-left:2px solid transparent;
  transition:color .22s ease, background .22s ease, border-color .22s ease;
}
.toc a.sub{padding-left:24px;font-size:13.5px;}
.toc a:hover{color:#fff;background:rgba(255,255,255,.06);}
.toc a.active{color:var(--cyan);border-left-color:var(--cyan);background:rgba(53,230,212,.09);}
.toc-empty{font-size:13.5px;color:var(--muted);}
.side-cta h3{font-size:17px;color:#fff;margin-bottom:10px;}
.side-cta p{font-size:14px;color:var(--muted);line-height:1.8;margin-bottom:16px;}
.side-cta .btn{width:100%;}

/* ============ 相关推荐 ============ */
.section{padding:56px 0;}
.section-head{margin-bottom:28px;}
.section-head h2{
  font-size:30px;
  color:#fff;
  margin-bottom:10px;
}
.section-head p{color:var(--muted);font-size:15px;}
.rel-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.rel-card{
  display:flex;
  flex-direction:column;
  border-radius:var(--r-card);
  border:1px solid var(--border);
  background:var(--glass);
  backdrop-filter:blur(14px);
  overflow:hidden;
  text-decoration:none;
  color:inherit;
  box-shadow:var(--shadow);
  transition:transform .28s ease, border-color .28s ease, box-shadow .28s ease;
}
.rel-card:hover{
  transform:translateY(-4px);
  border-color:rgba(53,230,212,.5);
  box-shadow:0 26px 60px rgba(53,230,212,.16);
}
.rel-thumb{
  position:relative;
  height:150px;
  overflow:hidden;
}
.rel-thumb img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .5s ease;
}
.rel-card:hover .rel-thumb img{transform:scale(1.06);}
.rel-thumb::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg, rgba(7,11,18,.15), rgba(7,11,18,.85));
}
.rel-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:11px;flex:1;}
.rel-body h3{font-size:18px;color:#fff;line-height:1.5;}
.rel-body p{font-size:14px;color:var(--muted);line-height:1.8;flex:1;}
.rel-link{
  display:inline-flex;
  align-items:center;
  gap:7px;
  font-size:13.5px;
  font-weight:700;
  color:var(--cyan);
}
.rel-card:hover .rel-link i{transform:translateX(4px);}
.rel-link i{transition:transform .25s ease;}

/* ============ CTA 条 ============ */
.cta-band{
  position:relative;
  overflow:hidden;
  border-radius:22px;
  border:1px solid rgba(53,230,212,.24);
  background:
    linear-gradient(120deg, rgba(53,230,212,.14), rgba(255,122,69,.10)),
    var(--bg-2);
  padding:46px 48px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:26px;
  box-shadow:var(--shadow-lg);
}
.cta-band h2{font-size:27px;color:#fff;margin-bottom:10px;}
.cta-band p{color:var(--text-2);font-size:15px;max-width:620px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:40px;
  border-top:1px solid var(--border);
  background:linear-gradient(180deg, rgba(10,16,32,.6), rgba(7,11,18,.96));
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.3fr;
  gap:44px;
  padding:64px 24px 46px;
}
.footer-brand p{
  margin-top:18px;
  font-size:14px;
  color:var(--muted);
  line-height:1.85;
  max-width:340px;
}
.footer-col h3{
  font-size:15px;
  color:#fff;
  margin-bottom:18px;
  letter-spacing:.04em;
}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a{
  font-size:14px;
  color:var(--muted);
  text-decoration:none;
  transition:color .22s ease, padding-left .22s ease;
}
.footer-col a:hover{color:var(--cyan);padding-left:4px;}
.contact-line{
  display:flex;
  align-items:flex-start;
  gap:10px;
  font-size:14px;
  color:var(--muted);
  line-height:1.75;
}
.contact-line i{color:var(--cyan);font-size:13px;margin-top:6px;}
.footer-bottom{border-top:1px solid var(--border);}
.footer-bottom-inner{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:22px 24px;
}
.footer-bottom-inner p{font-size:13px;color:var(--muted);}
.to-top{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-2);
  text-decoration:none;
  padding:8px 16px;
  border-radius:999px;
  border:1px solid var(--border);
  background:var(--glass);
  transition:color .22s ease, border-color .22s ease, transform .22s ease;
}
.to-top:hover{color:var(--cyan);border-color:rgba(53,230,212,.5);transform:translateY(-2px);}

/* ============ 响应式 ============ */
@media (max-width:1200px){
  .article-layout{grid-template-columns:minmax(0,1fr) 280px;gap:34px;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:36px;}
  .footer-brand{grid-column:1 / -1;}
}
@media (max-width:992px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:34px;padding-top:44px;}
  .article-side{position:static;flex-direction:row;flex-wrap:wrap;}
  .side-card{flex:1 1 300px;}
  .article-head h1{font-size:34px;}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-band{padding:38px 34px;}
}
@media (max-width:900px){
  .menu-btn{display:grid;place-items:center;}
  .nav-links{
    position:fixed;
    top:86px;
    left:16px;
    right:16px;
    flex-direction:column;
    align-items:stretch;
    gap:4px;
    padding:16px;
    border-radius:20px;
    background:rgba(9,15,28,.97);
    backdrop-filter:blur(18px);
    border:1px solid var(--border-strong);
    box-shadow:var(--shadow-lg);
    opacity:0;
    visibility:hidden;
    pointer-events:none;
    transform:translateY(-12px);
    transition:opacity .26s ease, transform .26s ease, visibility .26s ease;
  }
  .nav-links.open{opacity:1;visibility:visible;pointer-events:auto;transform:translateY(0);}
  .nav-links a{padding:13px 16px;border-radius:12px;font-size:15.5px;}
  .nav-links a.active{box-shadow:inset 0 0 0 1px rgba(53,230,212,.3);}
}
@media (max-width:768px){
  .container{padding:0 16px;}
  .brand-text em{display:none;}
  .brand-text strong{font-size:15px;}
  .nav-wrap{min-height:68px;}
  .nav-links{top:78px;}
  .page-hero{padding:34px 0 30px;}
  .article-head h1{font-size:29px;margin:12px 0 16px;}
  .article-main{padding:28px 22px 26px;border-radius:16px;}
  .article-body{font-size:16px;}
  .article-body h2{font-size:22px;margin:36px 0 14px;}
  .article-body h3{font-size:18px;}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap;}
  .section{padding:44px 0;}
  .section-head h2{font-size:24px;}
  .rel-grid{grid-template-columns:minmax(0,1fr);gap:18px;}
  .cta-band{padding:30px 22px;border-radius:18px;}
  .cta-band h2{font-size:22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 160px;}
  .footer-grid{grid-template-columns:1fr;gap:30px;padding:46px 16px 34px;}
  .footer-brand p{max-width:none;}
  .footer-bottom-inner{padding:18px 16px;}
  .article-foot{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .nav-actions .btn-sm{display:none;}
  .article-head h1{font-size:26px;}
  .article-meta{font-size:12.5px;gap:9px 14px;}
  .side-card{padding:18px 16px 20px;}
  .btn{height:46px;padding:0 20px;font-size:14.5px;}
  .article-body blockquote{padding:16px 16px;}
}
@media (max-width:375px){
  .article-head h1{font-size:23px;}
  .article-main{padding:22px 16px 22px;}
}

/* roulang page: category1 */
:root{
  --bg:#070B12;
  --bg-2:#0A1020;
  --bg-3:#0E1A2B;
  --glass:rgba(255,255,255,.06);
  --glass-strong:rgba(255,255,255,.09);
  --border:rgba(255,255,255,.10);
  --border-strong:rgba(255,255,255,.18);
  --cyan:#35E6D4;
  --cyan-deep:#12A99C;
  --orange:#FF7A45;
  --text:#EAF2F8;
  --text-2:#B9C7D6;
  --text-3:#7E8FA3;
  --radius-card:18px;
  --radius-btn:14px;
  --radius-pill:999px;
  --shadow:0 18px 50px rgba(0,0,0,.35);
  --shadow-glow:0 0 0 1px rgba(53,230,212,.35),0 12px 36px rgba(53,230,212,.14);
  --container:1220px;
  --gap:24px;
}
*,
*::before,
*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:-2;
  background:
    radial-gradient(900px 520px at 18% -8%,rgba(53,230,212,.10),transparent 62%),
    radial-gradient(760px 460px at 88% 6%,rgba(255,122,69,.08),transparent 60%),
    radial-gradient(1000px 600px at 50% 108%,rgba(53,230,212,.06),transparent 65%),
    var(--bg);
}
body::after{
  content:"";
  position:fixed;
  inset:0;
  z-index:-1;
  pointer-events:none;
  opacity:.35;
  background-image:
    linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(circle at 50% 20%,#000 0%,transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 50% 20%,#000 0%,transparent 78%);
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:none;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
h1,h2,h3,h4{font-weight:800;letter-spacing:0;line-height:1.3;}
.num{font-variant-numeric:tabular-nums;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px;}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}

/* ---------- Badge / Button ---------- */
.badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:var(--radius-pill);
  font-size:13px;
  line-height:1.4;
  letter-spacing:.02em;
  color:var(--cyan);
  background:rgba(53,230,212,.10);
  border:1px solid rgba(53,230,212,.28);
}
.badge.orange{color:var(--orange);background:rgba(255,122,69,.10);border-color:rgba(255,122,69,.30);}
.badge.ghost{color:var(--text-2);background:rgba(255,255,255,.05);border-color:var(--border);}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  min-height:48px;
  padding:0 26px;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:700;
  letter-spacing:.01em;
  border:1px solid transparent;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease,background .22s ease,color .22s ease;
  white-space:nowrap;
}
.btn i{font-size:14px;}
.btn-primary{
  color:#04140F;
  background:linear-gradient(120deg,#35E6D4 0%,#1FB6C9 48%,#2C6BE0 100%);
  box-shadow:0 12px 34px rgba(53,230,212,.26);
}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 18px 42px rgba(53,230,212,.36);}
.btn-primary:active{transform:translateY(-1px);}
.btn-ghost{
  color:var(--text);
  background:var(--glass);
  border-color:var(--border-strong);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.btn-ghost:hover{border-color:rgba(53,230,212,.55);color:#fff;transform:translateY(-3px);box-shadow:0 14px 34px rgba(0,0,0,.35);}
.btn-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:var(--cyan);
  font-weight:700;
  font-size:15px;
  padding-bottom:3px;
  border-bottom:1px solid rgba(53,230,212,.35);
  transition:border-color .2s ease,color .2s ease,gap .2s ease;
}
.btn-link:hover{border-color:var(--cyan);gap:12px;}
.btn-sm{min-height:42px;padding:0 20px;font-size:14px;border-radius:12px;}

/* ---------- Header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(7,11,18,.72);
  border-bottom:1px solid var(--border);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  transition:background .3s ease,box-shadow .3s ease;
}
.site-header.scrolled{
  background:rgba(6,10,16,.92);
  box-shadow:0 14px 34px rgba(0,0,0,.45);
}
.nav-wrap{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  min-height:78px;
}
.brand{display:inline-flex;align-items:center;gap:12px;}
.brand-mark{
  width:44px;height:44px;
  display:grid;place-items:center;
  border-radius:14px;
  background:linear-gradient(140deg,rgba(53,230,212,.22),rgba(44,107,224,.22));
  border:1px solid rgba(53,230,212,.35);
  color:var(--cyan);
  font-size:18px;
  box-shadow:0 10px 26px rgba(53,230,212,.16);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-text strong{font-size:17px;font-weight:800;color:#fff;}
.brand-text em{font-style:normal;font-size:12px;color:var(--text-3);letter-spacing:.02em;}
.nav-links{display:flex;align-items:center;gap:6px;}
.nav-links a{
  position:relative;
  padding:10px 16px;
  border-radius:var(--radius-pill);
  font-size:15px;
  color:var(--text-2);
  transition:color .2s ease,background .2s ease;
}
.nav-links a:hover{color:#fff;background:rgba(255,255,255,.06);}
.nav-links a.active{
  color:#fff;
  background:rgba(53,230,212,.12);
  box-shadow:inset 0 0 0 1px rgba(53,230,212,.35);
}
.nav-links a.active::after{
  content:"";
  position:absolute;
  left:50%;bottom:2px;
  width:22px;height:2px;
  transform:translateX(-50%);
  border-radius:2px;
  background:var(--cyan);
  box-shadow:0 0 12px rgba(53,230,212,.9);
}
.nav-actions{display:flex;align-items:center;gap:12px;}
.menu-btn{
  display:none;
  width:44px;height:44px;
  border-radius:12px;
  border:1px solid var(--border-strong);
  background:var(--glass);
  color:#fff;
  font-size:17px;
}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  padding:96px 0 88px;
  overflow:hidden;
}
.hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(90deg,rgba(7,11,18,.94) 0%,rgba(7,11,18,.80) 46%,rgba(7,11,18,.52) 100%),
    url("/assets/images/backpic/back-1.webp");
  background-size:cover;
  background-position:center;
  opacity:.85;
}
.hero .container{position:relative;z-index:2;}
.hero-grid{
  display:grid;
  grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);
  gap:48px;
  align-items:center;
}
.hero h1{
  margin:20px 0 0;
  font-size:clamp(32px,3.6vw,52px);
  line-height:1.22;
  color:#fff;
}
.hero h1 span{
  display:block;
  font-size:.62em;
  margin-top:12px;
  color:var(--cyan);
  font-weight:700;
  letter-spacing:.01em;
}
.hero-sub{
  margin-top:22px;
  max-width:620px;
  font-size:17px;
  line-height:1.9;
  color:var(--text-2);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px;}
.hero-meta{
  display:flex;
  flex-wrap:wrap;
  gap:28px;
  margin-top:40px;
  padding-top:28px;
  border-top:1px solid var(--border);
}
.hero-meta div{min-width:120px;}
.hero-meta b{display:block;font-size:26px;font-weight:800;color:#fff;font-variant-numeric:tabular-nums;}
.hero-meta span{display:block;margin-top:4px;font-size:13px;color:var(--text-3);}

.hero-card{
  position:relative;
  border-radius:22px;
  overflow:hidden;
  border:1px solid var(--border-strong);
  background:var(--glass);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow);
}
.hero-card .card-media{
  position:relative;
  aspect-ratio:16/10;
  background:url("/assets/images/backpic/back-2.png") center/cover no-repeat;
}
.hero-card .card-media::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,18,.15) 0%,rgba(7,11,18,.88) 100%);
}
.hero-card .card-body{position:relative;padding:26px 26px 28px;}
.hero-card h3{font-size:21px;color:#fff;margin-top:14px;}
.hero-card p{margin-top:10px;font-size:14.5px;color:var(--text-2);line-height:1.85;}
.hero-card .card-actions{margin-top:22px;display:flex;gap:12px;flex-wrap:wrap;}
.float-chip{
  position:absolute;
  right:18px;top:18px;
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 14px;
  border-radius:var(--radius-pill);
  font-size:13px;
  color:#04140F;
  font-weight:700;
  background:linear-gradient(120deg,#35E6D4,#2C6BE0);
  box-shadow:0 10px 26px rgba(53,230,212,.32);
}
.float-chip-2{
  position:absolute;
  left:18px;bottom:-16px;
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 16px;
  border-radius:var(--radius-pill);
  font-size:13px;
  color:var(--text);
  background:rgba(10,16,32,.92);
  border:1px solid rgba(53,230,212,.35);
  box-shadow:0 14px 30px rgba(0,0,0,.45);
}

/* ---------- Section base ---------- */
.section{padding:96px 0;}
.section.tight{padding:72px 0;}
.section-head{max-width:760px;margin-bottom:52px;}
.section-head h2{
  margin-top:16px;
  font-size:clamp(24px,2.4vw,34px);
  color:#fff;
}
.section-head p{margin-top:16px;font-size:16.5px;color:var(--text-2);}

.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.15fr);gap:56px;align-items:start;}

/* ---------- Stat strip ---------- */
.stat-strip{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:var(--gap);
  padding:26px;
  border-radius:var(--radius-card);
  border:1px solid var(--border);
  background:var(--glass);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.stat-strip .stat{padding:12px 18px;border-left:1px solid var(--border);}
.stat-strip .stat:first-child{border-left:none;}
.stat-strip b{display:block;font-size:28px;color:var(--cyan);font-weight:800;font-variant-numeric:tabular-nums;}
.stat-strip span{display:block;margin-top:6px;font-size:13.5px;color:var(--text-3);}

/* ---------- Entry cards (2 col) ---------- */
.entry-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:var(--gap);
}
.entry-card{
  display:grid;
  grid-template-columns:180px minmax(0,1fr);
  gap:0;
  border-radius:var(--radius-card);
  overflow:hidden;
  border:1px solid var(--border);
  background:var(--glass);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.entry-card:hover{
  transform:translateY(-4px);
  border-color:rgba(53,230,212,.55);
  box-shadow:var(--shadow-glow);
}
.entry-card .thumb{
  position:relative;
  min-height:100%;
  background-size:cover;
  background-position:center;
}
.entry-card .thumb::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(7,11,18,.30),rgba(7,11,18,.80));
}
.entry-card .entry-body{padding:26px 26px 28px;}
.entry-card h3{font-size:20px;color:#fff;}
.entry-card p{margin-top:12px;font-size:14.5px;color:var(--text-2);line-height:1.85;}
.entry-card ul{margin-top:16px;display:grid;gap:8px;}
.entry-card ul li{
  position:relative;
  padding-left:20px;
  font-size:14px;
  color:var(--text-2);
}
.entry-card ul li::before{
  content:"";
  position:absolute;
  left:0;top:9px;
  width:7px;height:7px;
  border-radius:50%;
  background:var(--cyan);
  box-shadow:0 0 10px rgba(53,230,212,.8);
}
.entry-card .entry-foot{
  margin-top:20px;
  padding-top:18px;
  border-top:1px solid var(--border);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
}

/* ---------- Timeline ---------- */
.timeline{
  position:relative;
  margin-top:8px;
  padding-left:34px;
}
.timeline::before{
  content:"";
  position:absolute;
  left:11px;top:8px;bottom:8px;
  width:2px;
  background:linear-gradient(180deg,rgba(53,230,212,.85),rgba(53,230,212,.10));
}
.tl-item{
  position:relative;
  padding:0 0 30px 0;
}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
  content:"";
  position:absolute;
  left:-34px;top:6px;
  width:24px;height:24px;
  border-radius:50%;
  background:#0A1020;
  border:2px solid var(--cyan);
  box-shadow:0 0 16px rgba(53,230,212,.45);
}
.tl-item i{
  position:absolute;
  left:-30px;top:10px;
  font-size:11px;
  color:var(--cyan);
  z-index:2;
}
.tl-item h3{font-size:18px;color:#fff;}
.tl-item p{margin-top:8px;font-size:14.5px;color:var(--text-2);line-height:1.85;}
.tl-item .tl-note{
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin-top:12px;
  padding:6px 12px;
  border-radius:var(--radius-pill);
  font-size:12.5px;
  color:var(--text-2);
  background:rgba(255,255,255,.05);
  border:1px solid var(--border);
}

/* ---------- Side panel (sticky list) ---------- */
.side-panel{
  position:sticky;
  top:104px;
  padding:28px;
  border-radius:var(--radius-card);
  border:1px solid var(--border);
  background:var(--glass);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.side-panel h3{font-size:17px;color:#fff;}
.side-panel .side-list{margin-top:18px;display:grid;gap:10px;}
.side-panel .side-list a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:12px 14px;
  border-radius:12px;
  font-size:14.5px;
  color:var(--text-2);
  background:rgba(255,255,255,.04);
  border:1px solid transparent;
  transition:all .2s ease;
}
.side-panel .side-list a:hover{
  color:#fff;
  border-color:rgba(53,230,212,.45);
  background:rgba(53,230,212,.08);
}
.side-panel .side-list a i{color:var(--cyan);font-size:12px;}
.scene-list{display:grid;gap:18px;margin-top:8px;}
.scene-item{
  padding:24px 26px;
  border-radius:var(--radius-card);
  border:1px solid var(--border);
  background:rgba(255,255,255,.045);
  transition:border-color .25s ease,transform .25s ease,box-shadow .25s ease;
}
.scene-item:hover{border-color:rgba(53,230,212,.45);transform:translateY(-3px);box-shadow:var(--shadow);}
.scene-item h3{font-size:18px;color:#fff;display:flex;align-items:center;gap:10px;}
.scene-item h3 i{color:var(--cyan);font-size:15px;}
.scene-item p{margin-top:10px;font-size:14.5px;color:var(--text-2);line-height:1.85;}

/* ---------- Device scroll ---------- */
.scroll-row{
  display:flex;
  gap:20px;
  overflow-x:auto;
  padding:6px 4px 22px;
  scroll-snap-type:x mandatory;
  -webkit-overflow-scrolling:touch;
}
.scroll-row::-webkit-scrollbar{height:8px;}
.scroll-row::-webkit-scrollbar-track{background:rgba(255,255,255,.05);border-radius:99px;}
.scroll-row::-webkit-scrollbar-thumb{background:rgba(53,230,212,.45);border-radius:99px;}
.device-card{
  flex:0 0 300px;
  scroll-snap-align:start;
  padding:26px;
  border-radius:var(--radius-card);
  border:1px solid var(--border);
  background:var(--glass);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  transition:border-color .25s ease,transform .25s ease;
}
.device-card:hover{border-color:rgba(53,230,212,.5);transform:translateY(-3px);}
.device-card .dev-icon{
  width:44px;height:44px;
  display:grid;place-items:center;
  border-radius:12px;
  color:var(--cyan);
  background:rgba(53,230,212,.10);
  border:1px solid rgba(53,230,212,.28);
  font-size:17px;
}
.device-card h3{margin-top:16px;font-size:17px;color:#fff;}
.device-card p{margin-top:10px;font-size:14px;color:var(--text-2);line-height:1.8;}

/* ---------- FAQ ---------- */
.faq-grid{
  display:grid;
  grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);
  gap:48px;
  align-items:start;
}
.faq-list{display:grid;gap:14px;}
.faq-item{
  border-radius:var(--radius-card);
  border:1px solid var(--border);
  background:var(--glass);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  overflow:hidden;
  transition:border-color .25s ease,box-shadow .25s ease;
}
.faq-item.open{border-color:rgba(53,230,212,.5);box-shadow:var(--shadow-glow);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:20px 24px;
  text-align:left;
  font-size:16px;
  font-weight:700;
  color:#fff;
}
.faq-q .plus{
  flex:0 0 auto;
  width:28px;height:28px;
  display:grid;place-items:center;
  border-radius:50%;
  border:1px solid rgba(53,230,212,.42);
  color:var(--cyan);
  font-size:12px;
  transition:transform .28s ease,background .28s ease;
}
.faq-item.open .plus{transform:rotate(135deg);background:rgba(53,230,212,.16);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .32s ease;
}
.faq-a-inner{
  padding:0 24px 22px;
  font-size:14.8px;
  color:var(--text-2);
  line-height:1.9;
  border-top:1px solid var(--border);
  padding-top:16px;
}

/* ---------- Link cards ---------- */
.link-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:var(--gap);
}
.link-card{
  display:block;
  padding:26px;
  border-radius:var(--radius-card);
  border:1px solid var(--border);
  background:var(--glass);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.link-card:hover{transform:translateY(-4px);border-color:rgba(53,230,212,.5);box-shadow:var(--shadow-glow);}
.link-card h3{font-size:17px;color:#fff;display:flex;align-items:center;gap:10px;}
.link-card h3 i{color:var(--cyan);font-size:14px;}
.link-card p{margin-top:10px;font-size:14px;color:var(--text-2);line-height:1.8;}
.link-card .arrow{margin-top:16px;display:inline-flex;align-items:center;gap:8px;font-size:13.5px;color:var(--cyan);font-weight:700;}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;
  border-radius:24px;
  overflow:hidden;
  border:1px solid rgba(53,230,212,.28);
  background:linear-gradient(120deg,rgba(53,230,212,.14),rgba(44,107,224,.14)),var(--bg-3);
  padding:56px;
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-80px;top:-80px;
  width:320px;height:320px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(255,122,69,.30),transparent 65%);
}
.cta-band-inner{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:minmax(0,1.3fr) minmax(0,.7fr);
  gap:36px;
  align-items:center;
}
.cta-band h2{font-size:clamp(22px,2.2vw,30px);color:#fff;}
.cta-band p{margin-top:14px;font-size:16px;color:var(--text-2);}
.cta-actions{display:flex;flex-direction:column;gap:14px;}
.cta-actions .btn{width:100%;}

/* ---------- Breadcrumb ---------- */
.crumb{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  padding:22px 0 0;
  font-size:13.5px;
  color:var(--text-3);
}
.crumb a{color:var(--text-3);transition:color .2s ease;}
.crumb a:hover{color:var(--cyan);}
.crumb .sep{opacity:.5;}
.crumb .now{color:var(--cyan);}

/* ---------- Footer ---------- */
.site-footer{
  margin-top:64px;
  border-top:1px solid var(--border);
  background:linear-gradient(180deg,rgba(10,16,32,.6),rgba(7,11,18,.95));
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:40px;
  padding:68px 0 52px;
}
.footer-brand .brand{margin-bottom:18px;}
.footer-brand p{font-size:14.5px;color:var(--text-3);line-height:1.9;max-width:340px;}
.footer-col h3{font-size:15px;color:#fff;margin-bottom:18px;}
.footer-col ul{display:grid;gap:12px;}
.footer-col a{font-size:14.5px;color:var(--text-2);transition:color .2s ease,padding-left .2s ease;}
.footer-col a:hover{color:var(--cyan);padding-left:4px;}
.contact-line{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--text-2);}
.contact-line i{color:var(--cyan);margin-top:5px;font-size:13px;}
.footer-bottom{border-top:1px solid var(--border);padding:22px 0;}
.footer-bottom-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  flex-wrap:wrap;
}
.footer-bottom p{font-size:13.5px;color:var(--text-3);}
.to-top{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:9px 18px;
  border-radius:var(--radius-pill);
  font-size:13.5px;
  color:var(--text-2);
  background:var(--glass);
  border:1px solid var(--border);
  transition:all .22s ease;
}
.to-top:hover{color:var(--cyan);border-color:rgba(53,230,212,.5);transform:translateY(-2px);}

/* ---------- Responsive ---------- */
@media (max-width:1200px){
  .hero-grid{gap:36px;}
  .entry-card{grid-template-columns:150px minmax(0,1fr);}
}
@media (max-width:992px){
  .section{padding:76px 0;}
  .hero{padding:72px 0 64px;}
  .hero-grid{grid-template-columns:1fr;}
  .hero-sub{max-width:none;}
  .stat-strip{grid-template-columns:repeat(2,minmax(0,1fr));}
  .stat-strip .stat{border-left:none;border-top:1px solid var(--border);padding-top:16px;}
  .stat-strip .stat:nth-child(-n+2){border-top:none;padding-top:12px;}
  .entry-grid{grid-template-columns:1fr;}
  .split{grid-template-columns:1fr;gap:36px;}
  .side-panel{position:static;}
  .faq-grid{grid-template-columns:1fr;gap:32px;}
  .link-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-band{padding:40px;}
  .cta-band-inner{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;padding:56px 0 40px;}
  .nav-links{
    position:fixed;
    inset:78px 0 0 0;
    flex-direction:column;
    align-items:stretch;
    gap:8px;
    padding:24px;
    background:rgba(7,11,18,.97);
    backdrop-filter:blur(18px);
    -webkit-backdrop-filter:blur(18px);
    transform:translateY(-12px);
    opacity:0;
    pointer-events:none;
    transition:opacity .26s ease,transform .26s ease;
    overflow-y:auto;
  }
  .nav-links a{padding:16px 18px;font-size:16px;border-radius:14px;background:rgba(255,255,255,.04);}
  .nav-links a.active::after{display:none;}
  .nav-links.open{opacity:1;transform:translateY(0);pointer-events:auto;}
  .menu-btn{display:grid;place-items:center;}
  .nav-actions .btn{display:none;}
}
@media (max-width:768px){
  .container{padding:0 16px;}
  .section{padding:56px 0;}
  .hero{padding:56px 0 48px;}
  .hero h1{font-size:clamp(28px,7vw,36px);}
  .hero-sub{font-size:16px;}
  .hero-actions .btn{flex:1 1 100%;}
  .hero-meta{gap:18px;}
  .hero-meta div{min-width:44%;}
  .entry-card{grid-template-columns:1fr;}
  .entry-card .thumb{min-height:170px;}
  .link-grid{grid-template-columns:1fr;}
  .stat-strip{grid-template-columns:1fr;padding:20px;}
  .stat-strip .stat{border-top:1px solid var(--border);padding:14px 4px;}
  .stat-strip .stat:first-child{border-top:none;}
  .cta-band{padding:30px 24px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom-inner{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .brand-text strong{font-size:15px;}
  .brand-text em{display:none;}
  .brand-mark{width:40px;height:40px;font-size:16px;}
  .nav-wrap{min-height:70px;}
  .nav-links{inset:70px 0 0 0;}
  .device-card{flex:0 0 84%;}
  .timeline{padding-left:28px;}
}

/* roulang page: category2 */
:root{
  --bg:#070B12;
  --bg-soft:#0A1020;
  --panel:#0E1A2B;
  --cyan:#35E6D4;
  --cyan-deep:#0E7A8C;
  --orange:#FF7A45;
  --text:#E8F0FA;
  --text-2:#C2D2E6;
  --muted:#8FA3BF;
  --border:rgba(255,255,255,.10);
  --border-strong:rgba(53,230,212,.42);
  --glass:rgba(255,255,255,.06);
  --glass-2:rgba(255,255,255,.035);
  --radius:18px;
  --radius-sm:12px;
  --radius-pill:999px;
  --shadow:0 18px 50px rgba(0,0,0,.35);
  --shadow-glow:0 0 0 1px rgba(53,230,212,.35),0 18px 46px rgba(20,190,190,.18);
  --container:1220px;
  --gap:24px;
  --font:"Noto Sans SC","PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font);
  font-size:17px;
  line-height:1.8;
  color:var(--text-2);
  background:var(--bg);
  background-image:
    radial-gradient(900px 520px at 12% -6%, rgba(53,230,212,.13), transparent 62%),
    radial-gradient(760px 460px at 92% 4%, rgba(255,122,69,.10), transparent 60%),
    linear-gradient(180deg,#070B12 0%,#080D17 42%,#070B12 100%);
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background-image:linear-gradient(rgba(255,255,255,.028) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.028) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(1000px 700px at 50% 0%,#000 12%,transparent 78%);
  -webkit-mask-image:radial-gradient(1000px 700px at 50% 0%,#000 12%,transparent 78%);
}
h1,h2,h3,h4{margin:0 0 14px;color:var(--text);font-weight:800;line-height:1.3;letter-spacing:0;}
h1{font-size:clamp(30px,3.6vw,50px);}
h2{font-size:clamp(24px,2.5vw,34px);}
h3{font-size:clamp(19px,1.6vw,23px);}
h4{font-size:17px;font-weight:700;}
p{margin:0 0 16px;color:var(--text-2);}
a{color:var(--cyan);text-decoration:none;transition:color .22s ease,opacity .22s ease;}
a:hover{color:#7ff5e8;}
img{max-width:100%;display:block;border:0;}
ul,ol{margin:0 0 16px;padding-left:20px;}
li{color:var(--text-2);}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px;}
.num{font-variant-numeric:tabular-nums;}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px;position:relative;z-index:2;}
.section{padding:100px 0;position:relative;z-index:2;}
.section-sm{padding:68px 0;position:relative;z-index:2;}
.section-head{max-width:820px;margin-bottom:44px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 16px;border-radius:var(--radius-pill);
  background:var(--glass);border:1px solid var(--border);
  color:var(--cyan);font-size:13.5px;font-weight:600;letter-spacing:.4px;
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  margin-bottom:18px;
}
.lead{font-size:17.5px;color:var(--muted);line-height:1.9;}

/* 导航 */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(7,11,18,.62);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(255,255,255,.07);
  transition:background .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.site-header.is-scrolled{background:rgba(6,10,17,.92);box-shadow:0 14px 40px rgba(0,0,0,.45);border-color:rgba(53,230,212,.16);}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:22px;height:76px;}
.brand{display:flex;align-items:center;gap:12px;color:var(--text);}
.brand:hover{color:var(--text);}
.brand-mark{
  width:42px;height:42px;flex:0 0 42px;display:grid;place-items:center;
  border-radius:14px;font-size:18px;color:#04212A;
  background:linear-gradient(140deg,var(--cyan),#1CA9C9 62%,#0E7A8C);
  box-shadow:0 10px 26px rgba(53,230,212,.30);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-text strong{font-size:16.5px;font-weight:800;letter-spacing:.2px;}
.brand-text em{font-style:normal;font-size:11.5px;color:var(--muted);letter-spacing:.6px;}
.nav-links{display:flex;align-items:center;gap:6px;}
.nav-links a{
  position:relative;padding:9px 15px;border-radius:var(--radius-pill);
  color:var(--text-2);font-size:15px;font-weight:500;white-space:nowrap;
  border:1px solid transparent;transition:all .24s ease;
}
.nav-links a:hover{color:#fff;background:var(--glass);border-color:var(--border);}
.nav-links a.active{
  color:#052A31;background:linear-gradient(135deg,#69F2E4,var(--cyan) 55%,#23C3C9);
  font-weight:700;box-shadow:0 10px 26px rgba(53,230,212,.26);
}
.nav-links a.active:hover{color:#052A31;transform:translateY(-2px);}
.nav-actions{display:flex;align-items:center;gap:12px;}
.menu-btn{
  display:none;width:46px;height:46px;border-radius:14px;cursor:pointer;
  background:var(--glass);border:1px solid var(--border);color:var(--text);font-size:17px;
}
.menu-btn:hover{border-color:var(--border-strong);color:var(--cyan);}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  min-height:48px;padding:0 26px;border-radius:14px;
  font-size:15.5px;font-weight:700;cursor:pointer;border:1px solid transparent;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,color .22s ease,border-color .22s ease;
  white-space:nowrap;
}
.btn-primary{
  color:#04242B;
  background:linear-gradient(135deg,#7CF7E8 0%,var(--cyan) 48%,#18A7BE 100%);
  box-shadow:0 14px 34px rgba(53,230,212,.30);
}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 20px 44px rgba(53,230,212,.42);color:#04242B;}
.btn-primary:active{transform:translateY(-1px);box-shadow:0 8px 20px rgba(53,230,212,.24);}
.btn-ghost{color:var(--text);background:var(--glass);border-color:var(--border);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);}
.btn-ghost:hover{border-color:var(--border-strong);color:var(--cyan);transform:translateY(-3px);}
.btn-orange{color:#2B0F03;background:linear-gradient(135deg,#FFB38C,var(--orange));box-shadow:0 14px 32px rgba(255,122,69,.30);}
.btn-orange:hover{transform:translateY(-3px);color:#2B0F03;box-shadow:0 20px 42px rgba(255,122,69,.42);}
.btn-sm{min-height:42px;padding:0 20px;font-size:14.5px;border-radius:12px;}
.btn-block{width:100%;}
.btn[disabled],.btn.is-disabled{opacity:.4;pointer-events:none;}
.btn-text{display:inline-flex;align-items:center;gap:7px;font-weight:700;color:var(--cyan);border-bottom:1px solid rgba(53,230,212,.35);padding-bottom:2px;}
.btn-text:hover{border-color:var(--cyan);color:#8ff8ec;}

/* Hero */
.hero{
  position:relative;overflow:hidden;padding:92px 0 76px;
  border-bottom:1px solid rgba(255,255,255,.06);
}
.hero-bg{
  position:absolute;inset:0;z-index:0;
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center 32%;
  opacity:.34;
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(7,11,18,.95) 0%,rgba(7,11,18,.82) 44%,rgba(10,16,32,.66) 100%);
}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:52px;align-items:center;}
.hero h1{margin-bottom:20px;}
.hero h1 .hl{
  background:linear-gradient(120deg,#9BFBF0,var(--cyan) 45%,#2BBFD6);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero .lead{max-width:640px;margin-bottom:28px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px;}
.hero-points{display:flex;flex-wrap:wrap;gap:12px 26px;padding:0;margin:0;list-style:none;}
.hero-points li{display:flex;align-items:center;gap:9px;font-size:14.5px;color:var(--text-2);}
.hero-points i{color:var(--cyan);font-size:13px;}

.hero-card{
  position:relative;border-radius:22px;overflow:hidden;
  background:var(--glass);border:1px solid var(--border);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  box-shadow:var(--shadow);padding:26px;
}
.hero-card::before{
  content:"";position:absolute;inset:0;z-index:-1;border-radius:22px;
  background:radial-gradient(420px 220px at 88% 0%,rgba(53,230,212,.18),transparent 70%);
}
.hero-card-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:20px;}
.pill{
  display:inline-flex;align-items:center;gap:7px;padding:6px 14px;border-radius:var(--radius-pill);
  font-size:12.5px;font-weight:700;letter-spacing:.4px;
  background:rgba(53,230,212,.12);color:var(--cyan);border:1px solid rgba(53,230,212,.30);
}
.pill.warm{background:rgba(255,122,69,.14);color:#FFB08C;border-color:rgba(255,122,69,.34);}
.pill.mute{background:var(--glass);color:var(--muted);border-color:var(--border);}
.hero-card-img{
  position:relative;border-radius:16px;overflow:hidden;margin-bottom:20px;
  border:1px solid var(--border);
}
.hero-card-img img{width:100%;height:196px;object-fit:cover;}
.hero-card-img::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,11,18,.10),rgba(7,11,18,.72));}
.hero-card-img .tag{
  position:absolute;left:14px;bottom:14px;z-index:2;
  padding:6px 14px;border-radius:var(--radius-pill);font-size:12.5px;font-weight:700;
  background:rgba(7,11,18,.72);border:1px solid var(--border-strong);color:var(--cyan);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
}
.hero-card h3{font-size:19px;margin-bottom:8px;}
.hero-card p{font-size:14.8px;color:var(--muted);margin-bottom:18px;}
.stat-row{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:18px;padding-top:18px;border-top:1px solid var(--border);}
.stat-row .stat b{display:block;font-size:22px;color:var(--cyan);font-weight:800;}
.stat-row .stat span{font-size:12.5px;color:var(--muted);}
.float-badge{
  position:absolute;right:-10px;top:96px;z-index:3;
  padding:10px 16px;border-radius:14px;font-size:12.5px;font-weight:700;
  background:rgba(7,11,18,.86);border:1px solid var(--border-strong);color:var(--cyan);
  box-shadow:0 12px 30px rgba(0,0,0,.45);
}

/* 面包屑 */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:9px;font-size:14px;color:var(--muted);padding:18px 0 0;}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--cyan);}
.breadcrumb span.sep{color:rgba(255,255,255,.22);}
.breadcrumb .current{color:var(--text);font-weight:600;}

/* 信任条 */
.trust-bar{
  display:grid;grid-template-columns:repeat(4,1fr);gap:18px;
  padding:24px;border-radius:var(--radius);
  background:var(--glass-2);border:1px solid var(--border);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.trust-item{display:flex;align-items:center;gap:13px;}
.trust-item i{
  width:42px;height:42px;flex:0 0 42px;display:grid;place-items:center;border-radius:12px;
  background:rgba(53,230,212,.12);color:var(--cyan);font-size:16px;border:1px solid rgba(53,230,212,.22);
}
.trust-item b{display:block;font-size:15px;color:var(--text);}
.trust-item span{font-size:13px;color:var(--muted);}

/* 双栏：左目录 + 右内容 */
.split{display:grid;grid-template-columns:282px 1fr;gap:40px;align-items:start;}
.toc{
  position:sticky;top:100px;
  padding:24px;border-radius:var(--radius);
  background:var(--glass);border:1px solid var(--border);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  box-shadow:var(--shadow);
}
.toc h2{font-size:16px;letter-spacing:.5px;margin-bottom:6px;}
.toc p{font-size:13px;color:var(--muted);margin-bottom:16px;}
.toc ul{list-style:none;padding:0;margin:0 0 18px;}
.toc li{margin-bottom:6px;}
.toc a{
  display:flex;align-items:center;gap:11px;
  padding:10px 13px;border-radius:var(--radius-sm);font-size:14.5px;color:var(--text-2);
  border:1px solid transparent;transition:all .22s ease;
}
.toc a i{color:var(--muted);font-size:13px;width:16px;text-align:center;transition:color .22s ease;}
.toc a:hover{background:var(--glass-2);border-color:var(--border);color:#fff;transform:translateX(3px);}
.toc a:hover i{color:var(--cyan);}
.toc a.active{background:rgba(53,230,212,.12);border-color:rgba(53,230,212,.32);color:var(--cyan);font-weight:600;}
.toc a.active i{color:var(--cyan);}
.toc-note{
  padding:14px;border-radius:var(--radius-sm);font-size:13px;color:var(--muted);
  background:rgba(255,122,69,.07);border:1px solid rgba(255,122,69,.22);
}
.toc-note b{color:#FFB08C;}

.panel{
  padding:30px;border-radius:var(--radius);margin-bottom:26px;scroll-margin-top:110px;
  background:linear-gradient(160deg,rgba(255,255,255,.065),rgba(255,255,255,.022));
  border:1px solid var(--border);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow);transition:border-color .28s ease,transform .28s ease,box-shadow .28s ease;
}
.panel:hover{border-color:var(--border-strong);transform:translateY(-3px);box-shadow:var(--shadow-glow);}
.panel-head{display:flex;align-items:flex-start;gap:16px;margin-bottom:18px;}
.panel-ico{
  width:50px;height:50px;flex:0 0 50px;display:grid;place-items:center;border-radius:14px;
  background:linear-gradient(140deg,rgba(53,230,212,.24),rgba(53,230,212,.06));
  color:var(--cyan);font-size:19px;border:1px solid rgba(53,230,212,.26);
}
.panel-head h3{margin-bottom:6px;}
.panel-head p{margin:0;font-size:15px;color:var(--muted);}
.panel-img{border-radius:14px;overflow:hidden;border:1px solid var(--border);margin-bottom:20px;position:relative;}
.panel-img img{width:100%;height:220px;object-fit:cover;}
.panel-img::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,11,18,.05),rgba(7,11,18,.55));}
.check-list{list-style:none;padding:0;margin:0;}
.check-list li{display:flex;gap:11px;align-items:flex-start;padding:9px 0;border-bottom:1px dashed rgba(255,255,255,.07);font-size:15.3px;}
.check-list li:last-child{border-bottom:0;}
.check-list i{color:var(--cyan);font-size:14px;margin-top:6px;flex:0 0 16px;}
.panel-tags{display:flex;flex-wrap:wrap;gap:9px;margin-top:18px;}
.tag{
  padding:5px 13px;border-radius:var(--radius-pill);font-size:12.5px;font-weight:600;
  background:var(--glass);border:1px solid var(--border);color:var(--text-2);
}
.tag.cy{color:var(--cyan);border-color:rgba(53,230,212,.30);background:rgba(53,230,212,.10);}

/* 对比表 */
.table-wrap{
  border-radius:var(--radius);overflow:hidden;border:1px solid var(--border);
  background:var(--glass-2);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
table{width:100%;border-collapse:collapse;font-size:15px;}
thead th{
  text-align:left;padding:16px 20px;font-size:13.5px;letter-spacing:.6px;color:var(--cyan);
  background:rgba(53,230,212,.07);border-bottom:1px solid var(--border);font-weight:700;white-space:nowrap;
}
tbody td{padding:16px 20px;border-bottom:1px solid rgba(255,255,255,.06);color:var(--text-2);vertical-align:top;}
tbody tr:last-child td{border-bottom:0;}
tbody tr:hover td{background:rgba(53,230,212,.05);}
tbody td:first-child{color:var(--text);font-weight:700;}

/* 流程时间线 */
.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;position:relative;}
.timeline::before{
  content:"";position:absolute;left:2%;right:2%;top:30px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(53,230,212,.42),rgba(53,230,212,.42),transparent);
}
.step{
  position:relative;padding:26px 22px;border-radius:var(--radius);
  background:var(--glass);border:1px solid var(--border);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow);transition:transform .26s ease,border-color .26s ease;
}
.step:hover{transform:translateY(-4px);border-color:var(--border-strong);}
.step-no{
  width:44px;height:44px;display:grid;place-items:center;border-radius:50%;
  font-weight:800;font-size:16px;color:#04242B;margin-bottom:16px;
  background:linear-gradient(140deg,#7CF7E8,var(--cyan) 60%,#18A7BE);
  box-shadow:0 12px 28px rgba(53,230,212,.28);
}
.step h3{font-size:17.5px;margin-bottom:8px;}
.step p{font-size:14.6px;color:var(--muted);margin:0;}

/* 评价 */
.review-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.review{
  padding:28px;border-radius:var(--radius);
  background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  border:1px solid var(--border);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow);transition:transform .26s ease,border-color .26s ease;
}
.review:hover{transform:translateY(-4px);border-color:var(--border-strong);}
.review-top{display:flex;align-items:center;gap:14px;margin-bottom:14px;}
.avatar{
  width:48px;height:48px;flex:0 0 48px;border-radius:50%;display:grid;place-items:center;
  font-weight:800;color:#04242B;background:linear-gradient(140deg,#9BFBF0,#22B8C8);font-size:16px;
}
.review-top b{display:block;color:var(--text);font-size:15.5px;}
.review-top span{font-size:13px;color:var(--muted);}
.stars{color:var(--cyan);font-size:13px;letter-spacing:2px;margin-bottom:10px;}
.review p{font-size:15.3px;margin:0;color:var(--text-2);}

/* FAQ */
.faq-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px 24px;align-items:start;}
.faq{
  border-radius:var(--radius);border:1px solid var(--border);
  background:var(--glass);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  overflow:hidden;transition:border-color .24s ease,box-shadow .24s ease;
}
.faq:hover{border-color:var(--border-strong);}
.faq.open{border-color:var(--border-strong);box-shadow:var(--shadow-glow);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;background:transparent;border:0;cursor:pointer;text-align:left;
  color:var(--text);font-size:16.2px;font-weight:700;
}
.faq-q i{color:var(--cyan);font-size:15px;transition:transform .3s ease;flex:0 0 auto;}
.faq.open .faq-q i{transform:rotate(135deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .34s ease;}
.faq-a p{padding:0 22px 22px;margin:0;font-size:15.2px;color:var(--muted);}

/* CTA */
.cta-band{
  position:relative;overflow:hidden;border-radius:24px;padding:56px 48px;
  background:linear-gradient(120deg,rgba(14,26,43,.92),rgba(10,16,32,.86)),
             url("/assets/images/backpic/back-3.webp") center/cover no-repeat;
  border:1px solid rgba(53,230,212,.22);
  box-shadow:var(--shadow);
}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(600px 260px at 88% 12%,rgba(53,230,212,.20),transparent 68%);
  pointer-events:none;
}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;}
.cta-inner h2{margin-bottom:12px;}
.cta-inner p{max-width:640px;margin:0;color:var(--muted);}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* 页脚 */
.site-footer{
  margin-top:40px;padding-top:76px;
  background:linear-gradient(180deg,rgba(10,16,32,.55),rgba(6,9,15,.95));
  border-top:1px solid rgba(255,255,255,.08);position:relative;z-index:2;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:52px;}
.footer-brand .brand{margin-bottom:18px;}
.footer-brand p{font-size:14.6px;color:var(--muted);max-width:340px;}
.footer-col h3{font-size:15.5px;margin-bottom:18px;}
.footer-col ul{list-style:none;padding:0;margin:0;}
.footer-col li{margin-bottom:11px;}
.footer-col a{font-size:14.6px;color:var(--muted);transition:color .2s ease,padding-left .2s ease;}
.footer-col a:hover{color:var(--cyan);padding-left:4px;}
.contact-line{display:flex;gap:10px;align-items:flex-start;font-size:14.2px;color:var(--muted);}
.contact-line i{color:var(--cyan);margin-top:5px;font-size:13px;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.07);padding:22px 0;background:rgba(4,7,12,.7);}
.footer-bottom-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;}
.footer-bottom p{margin:0;font-size:13.6px;color:var(--muted);}
.to-top{
  display:inline-flex;align-items:center;gap:8px;padding:9px 18px;border-radius:var(--radius-pill);
  font-size:13.6px;font-weight:600;color:var(--text-2);
  background:var(--glass);border:1px solid var(--border);
}
.to-top:hover{border-color:var(--border-strong);color:var(--cyan);transform:translateY(-2px);}

/* 响应式 */
@media (max-width:1200px){
  .nav-links a{padding:9px 12px;font-size:14.3px;}
  .footer-grid{grid-template-columns:1.5fr 1fr 1fr;gap:34px;}
  .footer-col:last-child{grid-column:span 3;}
}
@media (max-width:992px){
  .nav-links{display:none;}
  .menu-btn{display:grid;place-items:center;}
  .nav-links.open{
    display:flex;flex-direction:column;align-items:stretch;gap:6px;
    position:absolute;left:16px;right:16px;top:84px;padding:18px;
    border-radius:var(--radius);background:rgba(8,13,22,.97);
    border:1px solid var(--border-strong);box-shadow:var(--shadow);
    backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  }
  .nav-links.open a{padding:13px 16px;border-radius:12px;font-size:15.5px;}
  .hero{padding:64px 0 56px;}
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .float-badge{right:8px;top:auto;bottom:-14px;}
  .trust-bar{grid-template-columns:repeat(2,1fr);}
  .split{grid-template-columns:1fr;gap:28px;}
  .toc{position:static;}
  .timeline{grid-template-columns:repeat(2,1fr);}
  .timeline::before{display:none;}
  .section{padding:76px 0;}
}
@media (max-width:768px){
  body{font-size:16px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
  .footer-col:last-child{grid-column:span 2;}
  .faq-grid{grid-template-columns:1fr;}
  .review-grid{grid-template-columns:1fr;}
  .cta-band{padding:38px 24px;border-radius:20px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .brand-text em{display:none;}
  .hero-card-img img{height:170px;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .nav-wrap{height:68px;gap:12px;}
  .brand-mark{width:38px;height:38px;flex:0 0 38px;font-size:16px;}
  .brand-text strong{font-size:14.6px;}
  .nav-actions .btn{display:none;}
  .section{padding:56px 0;}
  .section-sm{padding:44px 0;}
  .trust-bar{grid-template-columns:1fr;padding:18px;}
  .timeline{grid-template-columns:1fr;}
  .panel{padding:22px;}
  .panel-img img{height:170px;}
  .hero-cta .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-col:last-child{grid-column:span 1;}
  table{font-size:14px;}
  thead th,tbody td{padding:13px 14px;}
  .table-wrap{overflow-x:auto;}
  table{min-width:560px;}
}

/* roulang page: category3 */
:root{
  --bg:#070B12;
  --bg-2:#0A1020;
  --bg-3:#0E1A2B;
  --cyan:#35E6D4;
  --cyan-deep:#12867F;
  --orange:#FF7A45;
  --text:#E9EFF7;
  --text-2:#C2CEE0;
  --muted:#8E9FB8;
  --border:rgba(255,255,255,.10);
  --border-strong:rgba(53,230,212,.45);
  --glass:rgba(255,255,255,.06);
  --glass-2:rgba(255,255,255,.09);
  --radius:18px;
  --radius-sm:14px;
  --radius-pill:999px;
  --shadow:0 18px 50px rgba(0,0,0,.35);
  --shadow-soft:0 10px 28px rgba(0,0,0,.28);
  --glow:0 0 0 1px rgba(53,230,212,.25),0 12px 34px rgba(53,230,212,.18);
  --container:1220px;
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  font-weight:400;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:-2;
  background:
    radial-gradient(900px 520px at 12% -8%,rgba(53,230,212,.16),transparent 62%),
    radial-gradient(760px 460px at 92% 4%,rgba(255,122,69,.10),transparent 60%),
    radial-gradient(1000px 700px at 50% 108%,rgba(20,60,110,.35),transparent 70%),
    var(--bg);
}
body::after{
  content:"";
  position:fixed;
  inset:0;
  z-index:-1;
  pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.028) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.028) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(circle at 50% 20%,#000 0%,transparent 82%);
  -webkit-mask-image:radial-gradient(circle at 50% 20%,#000 0%,transparent 82%);
}
img{max-width:100%;display:block;border:0;}
a{color:var(--text);text-decoration:none;transition:color .22s ease,border-color .22s ease,opacity .22s ease;}
a:hover{color:var(--cyan);}
button{font-family:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.28;letter-spacing:0;}
p{margin:0;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:8px;}
::selection{background:rgba(53,230,212,.28);color:#fff;}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:90;
  background:rgba(7,11,18,.72);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--border);
  transition:background .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.site-header.scrolled{
  background:rgba(7,11,18,.92);
  box-shadow:0 12px 34px rgba(0,0,0,.45);
  border-color:rgba(53,230,212,.18);
}
.nav-wrap{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  min-height:76px;
}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.brand-mark{
  width:42px;height:42px;border-radius:13px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,rgba(53,230,212,.9),rgba(19,93,140,.9));
  color:#04121A;font-size:19px;
  box-shadow:0 0 0 1px rgba(53,230,212,.35),0 10px 26px rgba(53,230,212,.22);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-text strong{font-size:16.5px;font-weight:800;color:#fff;letter-spacing:.2px;}
.brand-text em{font-style:normal;font-size:12px;color:var(--muted);letter-spacing:.4px;}
.nav-links{display:flex;align-items:center;gap:6px;}
.nav-links a{
  position:relative;
  padding:10px 16px;
  border-radius:var(--radius-pill);
  font-size:15px;
  color:var(--text-2);
  transition:color .22s ease,background .22s ease,box-shadow .22s ease;
}
.nav-links a:hover{color:#fff;background:rgba(255,255,255,.06);}
.nav-links a.active{
  color:#fff;
  background:linear-gradient(180deg,rgba(53,230,212,.20),rgba(53,230,212,.06));
  box-shadow:inset 0 0 0 1px rgba(53,230,212,.42);
}
.nav-links a.active::after{
  content:"";
  position:absolute;left:50%;bottom:-9px;
  transform:translateX(-50%);
  width:26px;height:2px;border-radius:2px;
  background:var(--cyan);
  box-shadow:0 0 12px rgba(53,230,212,.9);
}
.nav-actions{display:flex;align-items:center;gap:12px;}
.menu-btn{
  display:none;
  width:44px;height:44px;
  border-radius:12px;
  background:var(--glass);
  border:1px solid var(--border);
  color:#fff;font-size:17px;cursor:pointer;
  transition:background .22s ease,border-color .22s ease,transform .18s ease;
}
.menu-btn:hover{background:var(--glass-2);border-color:var(--border-strong);}
.menu-btn:active{transform:translateY(1px);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  height:50px;padding:0 26px;
  border-radius:var(--radius-sm);
  font-size:15.5px;font-weight:700;
  border:1px solid transparent;
  cursor:pointer;
  white-space:nowrap;
  transition:transform .2s ease,box-shadow .24s ease,background .24s ease,border-color .24s ease,color .24s ease;
}
.btn-sm{height:44px;padding:0 20px;font-size:14.5px;}
.btn-primary{
  color:#04121A;
  background:linear-gradient(120deg,var(--cyan) 0%,#4FD1E8 48%,#3C9BE8 100%);
  box-shadow:0 12px 32px rgba(53,230,212,.28),inset 0 0 0 1px rgba(255,255,255,.28);
}
.btn-primary:hover{
  color:#04121A;
  transform:translateY(-3px);
  box-shadow:0 18px 42px rgba(53,230,212,.42),inset 0 0 0 1px rgba(255,255,255,.4);
}
.btn-primary:active{transform:translateY(-1px);}
.btn-ghost{
  color:var(--text);
  background:var(--glass);
  border-color:var(--border);
  backdrop-filter:blur(10px);
}
.btn-ghost:hover{
  color:#fff;
  border-color:var(--border-strong);
  background:rgba(53,230,212,.10);
  transform:translateY(-3px);
  box-shadow:var(--glow);
}
.btn-outline-orange{
  color:var(--orange);
  background:rgba(255,122,69,.10);
  border-color:rgba(255,122,69,.42);
}
.btn-outline-orange:hover{
  color:#fff;
  background:rgba(255,122,69,.22);
  border-color:rgba(255,122,69,.7);
  transform:translateY(-3px);
}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none;}

.text-link{
  display:inline-flex;align-items:center;gap:7px;
  font-size:14.5px;font-weight:700;color:var(--cyan);
  border-bottom:1px solid rgba(53,230,212,.4);
  padding-bottom:2px;
}
.text-link:hover{color:#fff;border-color:#fff;}

/* ============ 通用元素 ============ */
.badge{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 14px;
  border-radius:var(--radius-pill);
  font-size:12.5px;font-weight:700;letter-spacing:.4px;
  background:rgba(53,230,212,.12);
  border:1px solid rgba(53,230,212,.35);
  color:var(--cyan);
}
.badge-orange{background:rgba(255,122,69,.12);border-color:rgba(255,122,69,.4);color:var(--orange);}
.badge-muted{background:rgba(255,255,255,.07);border-color:var(--border);color:var(--muted);}

.section{padding:104px 0;position:relative;}
.section-tight{padding:72px 0;}
.section-head{max-width:760px;margin-bottom:48px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-head h2{font-size:min(34px,3.4vw);font-weight:800;color:#fff;margin-top:16px;}
.section-head h2 span{color:var(--cyan);}
.section-head p{margin-top:16px;color:var(--muted);font-size:16.5px;line-height:1.85;}

.card{
  background:var(--glass);
  border:1px solid var(--border);
  border-radius:var(--radius);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow);
  transition:transform .26s ease,border-color .26s ease,box-shadow .26s ease,background .26s ease;
}
.card:hover{
  transform:translateY(-4px);
  border-color:var(--border-strong);
  box-shadow:0 22px 56px rgba(0,0,0,.42),0 0 0 1px rgba(53,230,212,.18);
}
.card-pad{padding:28px;}

.breadcrumb{
  display:flex;align-items:center;gap:9px;flex-wrap:wrap;
  font-size:13.5px;color:var(--muted);
  padding:22px 0 0;
}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--cyan);}
.breadcrumb .sep{opacity:.5;}
.breadcrumb .current{color:var(--cyan);font-weight:700;}

/* ============ Hero ============ */
.hero{
  position:relative;
  padding:64px 0 88px;
  overflow:hidden;
}
.hero::before{
  content:"";
  position:absolute;inset:0;
  background:radial-gradient(720px 420px at 78% 12%,rgba(53,230,212,.16),transparent 62%);
  pointer-events:none;
}
.hero-grid{
  display:grid;
  grid-template-columns:1.12fr .88fr;
  gap:52px;
  align-items:center;
  position:relative;
}
.hero h1{
  font-size:clamp(30px,4.2vw,52px);
  font-weight:800;
  line-height:1.24;
  margin:22px 0 20px;
  color:#fff;
}
.hero h1 em{
  font-style:normal;
  background:linear-gradient(100deg,var(--cyan),#7DE7FF 60%,#FFD8C6);
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:transparent;
}
.hero-sub{
  font-size:17px;
  color:var(--text-2);
  line-height:1.9;
  max-width:640px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-meta{
  display:flex;flex-wrap:wrap;gap:12px 28px;
  margin-top:34px;padding-top:26px;
  border-top:1px solid var(--border);
}
.hero-meta li{
  display:flex;align-items:center;gap:9px;
  font-size:14px;color:var(--muted);
}
.hero-meta i{color:var(--cyan);font-size:13px;}

.hero-card{
  position:relative;
  border-radius:22px;
  overflow:hidden;
  border:1px solid var(--border);
  box-shadow:var(--shadow);
  min-height:392px;
  display:flex;
  align-items:flex-end;
  isolation:isolate;
}
.hero-card img{
  position:absolute;inset:0;
  width:100%;height:100%;object-fit:cover;
  z-index:-2;
}
.hero-card::after{
  content:"";
  position:absolute;inset:0;z-index:-1;
  background:linear-gradient(180deg,rgba(7,11,18,.28) 0%,rgba(7,11,18,.78) 58%,rgba(7,11,18,.95) 100%);
}
.hero-card-inner{padding:28px;width:100%;}
.hero-card-inner h3{
  font-size:21px;color:#fff;margin:14px 0 10px;
}
.hero-card-inner p{font-size:14.5px;color:var(--text-2);line-height:1.8;}
.hero-card-inner .btn{margin-top:20px;width:100%;}
.float-chip{
  position:absolute;top:22px;right:22px;
  padding:12px 16px;
  border-radius:14px;
  background:rgba(7,11,18,.72);
  border:1px solid rgba(53,230,212,.35);
  backdrop-filter:blur(12px);
  box-shadow:0 12px 30px rgba(0,0,0,.4);
  text-align:right;
}
.float-chip strong{
  display:block;font-size:19px;color:var(--cyan);
  font-variant-numeric:tabular-nums;
}
.float-chip span{font-size:11.5px;color:var(--muted);letter-spacing:.4px;}

/* ============ 信任徽章条 ============ */
.trust-strip{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:18px;
}
.trust-item{
  display:flex;align-items:center;gap:14px;
  padding:20px 22px;
  border-radius:var(--radius-sm);
  background:linear-gradient(180deg,rgba(255,255,255,.07),rgba(255,255,255,.03));
  border:1px solid var(--border);
  transition:border-color .25s ease,transform .25s ease;
}
.trust-item:hover{border-color:var(--border-strong);transform:translateY(-3px);}
.trust-item i{
  width:42px;height:42px;flex:0 0 42px;
  display:grid;place-items:center;
  border-radius:12px;
  background:rgba(53,230,212,.12);
  border:1px solid rgba(53,230,212,.3);
  color:var(--cyan);font-size:16px;
}
.trust-item strong{display:block;font-size:15px;color:#fff;font-weight:700;}
.trust-item span{font-size:12.8px;color:var(--muted);}

/* ============ 风险提示网格 ============ */
.risk-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:22px;
}
.risk-card{
  padding:28px;
  border-radius:var(--radius);
  background:var(--glass);
  border:1px solid var(--border);
  backdrop-filter:blur(14px);
  transition:transform .26s ease,border-color .26s ease,box-shadow .26s ease;
  display:flex;gap:20px;
}
.risk-card:hover{transform:translateY(-4px);border-color:var(--border-strong);box-shadow:0 22px 52px rgba(0,0,0,.4);}
.risk-icon{
  flex:0 0 52px;width:52px;height:52px;
  border-radius:15px;
  display:grid;place-items:center;
  font-size:19px;
  background:rgba(255,122,69,.12);
  border:1px solid rgba(255,122,69,.35);
  color:var(--orange);
}
.risk-card h3{font-size:18.5px;color:#fff;margin-bottom:9px;}
.risk-card p{font-size:14.8px;color:var(--muted);line-height:1.85;}
.risk-card .risk-tip{
  display:inline-block;margin-top:14px;
  font-size:13px;color:var(--cyan);
  border-left:2px solid rgba(53,230,212,.5);
  padding-left:10px;
}

/* ============ 处理流程时间线 ============ */
.steps{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:22px;
  position:relative;
}
.steps::before{
  content:"";
  position:absolute;top:26px;left:6%;right:6%;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(53,230,212,.45),rgba(53,230,212,.45),transparent);
}
.step{
  position:relative;
  padding-top:0;
}
.step-num{
  width:54px;height:54px;
  border-radius:50%;
  display:grid;place-items:center;
  font-size:17px;font-weight:800;
  color:#04121A;
  background:linear-gradient(135deg,var(--cyan),#3C9BE8);
  box-shadow:0 0 0 6px rgba(7,11,18,.9),0 10px 26px rgba(53,230,212,.28);
  font-variant-numeric:tabular-nums;
  margin-bottom:20px;
}
.step h3{font-size:17.5px;color:#fff;margin-bottom:10px;}
.step p{font-size:14.6px;color:var(--muted);line-height:1.85;}

/* ============ 双栏 FAQ ============ */
.faq-layout{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:26px;
  align-items:start;
}
.faq-col{display:flex;flex-direction:column;gap:16px;}
.faq-item{
  border-radius:var(--radius-sm);
  background:var(--glass);
  border:1px solid var(--border);
  backdrop-filter:blur(12px);
  overflow:hidden;
  transition:border-color .25s ease,box-shadow .25s ease,background .25s ease;
}
.faq-item:hover{border-color:rgba(53,230,212,.32);}
.faq-item.open{
  border-color:var(--border-strong);
  background:rgba(53,230,212,.07);
  box-shadow:var(--glow);
}
.faq-q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;
  background:transparent;border:0;
  color:#fff;font-size:16px;font-weight:700;
  text-align:left;cursor:pointer;line-height:1.6;
}
.faq-q .plus{
  flex:0 0 28px;width:28px;height:28px;
  display:grid;place-items:center;
  border-radius:50%;
  border:1px solid rgba(53,230,212,.4);
  color:var(--cyan);font-size:12px;
  transition:transform .3s ease,background .3s ease;
}
.faq-item.open .faq-q .plus{transform:rotate(135deg);background:rgba(53,230,212,.18);}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .34s ease,padding .3s ease;
  padding:0 22px;
}
.faq-item.open .faq-a{max-height:420px;padding:0 22px 22px;}
.faq-a p{font-size:14.8px;color:var(--text-2);line-height:1.88;}

/* ============ 联系表单 ============ */
.contact-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:28px;
  align-items:start;
}
.contact-panel{
  padding:34px;
  border-radius:22px;
  background:var(--glass);
  border:1px solid var(--border);
  backdrop-filter:blur(14px);
  box-shadow:var(--shadow);
}
.contact-panel h2{font-size:27px;color:#fff;margin-bottom:14px;}
.contact-panel > p{color:var(--muted);font-size:15px;line-height:1.85;margin-bottom:26px;}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.field{display:flex;flex-direction:column;gap:9px;margin-bottom:18px;}
.field label{font-size:13.5px;color:var(--text-2);font-weight:700;letter-spacing:.3px;}
.field input,.field select,.field textarea{
  width:100%;
  background:rgba(255,255,255,.05);
  border:1px solid var(--border);
  border-radius:12px;
  padding:13px 15px;
  color:#fff;
  font-size:14.8px;
  font-family:inherit;
  transition:border-color .22s ease,box-shadow .22s ease,background .22s ease;
}
.field textarea{min-height:132px;resize:vertical;line-height:1.7;}
.field input::placeholder,.field textarea::placeholder{color:#6E7F98;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;
  border-color:var(--cyan);
  background:rgba(53,230,212,.07);
  box-shadow:0 0 0 3px rgba(53,230,212,.18);
}
.field select option{background:#0E1A2B;color:#fff;}
.field.error input,.field.error select,.field.error textarea{border-color:#FF6B6B;background:rgba(255,107,107,.07);}
.field .err-msg{font-size:12.5px;color:#FF8A8A;display:none;}
.field.error .err-msg{display:block;}
.form-note{font-size:12.8px;color:var(--muted);margin-top:14px;line-height:1.7;}
.form-status{
  display:none;
  align-items:center;gap:10px;
  margin-bottom:18px;padding:14px 16px;
  border-radius:12px;
  font-size:14px;
  background:rgba(53,230,212,.10);
  border:1px solid rgba(53,230,212,.4);
  color:var(--cyan);
}
.form-status.show{display:flex;}
.form-status.is-error{
  background:rgba(255,107,107,.10);
  border-color:rgba(255,107,107,.45);
  color:#FF9B9B;
}

.help-side{
  display:flex;flex-direction:column;gap:18px;
}
.help-side .side-card{
  padding:26px;
  border-radius:var(--radius);
  background:linear-gradient(180deg,rgba(255,255,255,.08),rgba(255,255,255,.03));
  border:1px solid var(--border);
}
.help-side h3{font-size:17.5px;color:#fff;margin-bottom:16px;display:flex;align-items:center;gap:10px;}
.help-side h3 i{color:var(--cyan);}
.check-list li{
  display:flex;gap:11px;
  padding:11px 0;
  font-size:14.6px;color:var(--text-2);
  border-bottom:1px dashed rgba(255,255,255,.09);
  line-height:1.75;
}
.check-list li:last-child{border-bottom:0;}
.check-list i{color:var(--cyan);font-size:13px;margin-top:7px;}
.side-image{
  border-radius:var(--radius);
  overflow:hidden;
  border:1px solid var(--border);
  position:relative;
}
.side-image img{width:100%;height:210px;object-fit:cover;}
.side-image figcaption{
  position:absolute;left:0;right:0;bottom:0;
  padding:16px 20px;
  font-size:13.5px;color:var(--text-2);
  background:linear-gradient(180deg,transparent,rgba(7,11,18,.92));
}

/* ============ 相关链接卡片 ============ */
.link-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.link-card{
  display:flex;flex-direction:column;
  border-radius:var(--radius);
  overflow:hidden;
  background:var(--glass);
  border:1px solid var(--border);
  backdrop-filter:blur(12px);
  transition:transform .26s ease,border-color .26s ease,box-shadow .26s ease;
}
.link-card:hover{transform:translateY(-5px);border-color:var(--border-strong);box-shadow:0 24px 56px rgba(0,0,0,.42);}
.link-card .thumb{position:relative;height:172px;overflow:hidden;}
.link-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.link-card:hover .thumb img{transform:scale(1.06);}
.link-card .thumb::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,18,.12),rgba(7,11,18,.72));
}
.link-card .thumb .badge{position:absolute;left:16px;top:16px;z-index:2;}
.link-card .body{padding:24px;display:flex;flex-direction:column;flex:1;}
.link-card h3{font-size:18px;color:#fff;margin-bottom:10px;}
.link-card p{font-size:14.6px;color:var(--muted);line-height:1.82;flex:1;}
.link-card .more{
  margin-top:18px;
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:700;color:var(--cyan);
}
.link-card:hover .more i{transform:translateX(4px);}
.link-card .more i{transition:transform .26s ease;}

/* ============ CTA 条 ============ */
.cta-band{
  position:relative;
  border-radius:24px;
  overflow:hidden;
  border:1px solid rgba(53,230,212,.28);
  padding:56px 48px;
  box-shadow:var(--shadow);
}
.cta-band img{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
  z-index:-2;
}
.cta-band::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(105deg,rgba(7,11,18,.94) 18%,rgba(10,16,32,.82) 58%,rgba(18,134,127,.42) 100%);
}
.cta-band h2{font-size:min(31px,3.2vw);color:#fff;margin:16px 0 14px;}
.cta-band p{font-size:16px;color:var(--text-2);max-width:660px;line-height:1.85;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:96px;
  background:linear-gradient(180deg,rgba(10,16,32,.6),rgba(7,11,18,.98));
  border-top:1px solid var(--border);
  padding-top:66px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:52px;
}
.footer-brand .brand{margin-bottom:18px;}
.footer-brand p{font-size:14.4px;color:var(--muted);line-height:1.9;max-width:360px;}
.footer-col h3{
  font-size:15px;color:#fff;margin-bottom:20px;
  position:relative;padding-bottom:12px;
}
.footer-col h3::after{
  content:"";position:absolute;left:0;bottom:0;
  width:28px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--cyan),transparent);
}
.footer-col li{margin-bottom:12px;}
.footer-col a{font-size:14.2px;color:var(--muted);}
.footer-col a:hover{color:var(--cyan);}
.contact-line{display:flex;gap:10px;font-size:14px;color:var(--muted);line-height:1.75;}
.contact-line i{color:var(--cyan);margin-top:6px;font-size:13px;}
.footer-bottom{
  border-top:1px solid var(--border);
  padding:22px 0;
  background:rgba(7,11,18,.6);
}
.footer-bottom-inner{
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
}
.footer-bottom p{font-size:13.2px;color:var(--muted);}
.to-top{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13.4px;color:var(--text-2);
  padding:9px 18px;border-radius:var(--radius-pill);
  border:1px solid var(--border);background:var(--glass);
}
.to-top:hover{color:#fff;border-color:var(--border-strong);box-shadow:var(--glow);}

/* ============ 响应式 ============ */
@media (max-width:1200px){
  .nav-links a{padding:10px 12px;font-size:14.5px;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:34px;}
}
@media (max-width:1024px){
  .section{padding:82px 0;}
  .hero-grid{grid-template-columns:1fr;gap:38px;}
  .hero-card{min-height:330px;}
  .trust-strip{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:repeat(2,1fr);gap:26px;}
  .steps::before{display:none;}
  .link-grid{grid-template-columns:repeat(2,1fr);}
  .contact-grid{grid-template-columns:1fr;}
  .faq-layout{grid-template-columns:1fr;}
}
@media (max-width:900px){
  .menu-btn{display:grid;place-items:center;}
  .nav-links{
    position:fixed;
    top:76px;left:0;right:0;
    flex-direction:column;
    align-items:stretch;
    gap:4px;
    padding:22px 20px 30px;
    background:rgba(7,11,18,.97);
    backdrop-filter:blur(16px);
    border-bottom:1px solid var(--border);
    transform:translateY(-12px);
    opacity:0;visibility:hidden;
    transition:opacity .26s ease,transform .26s ease,visibility .26s;
    max-height:calc(100vh - 76px);
    overflow-y:auto;
  }
  .nav-links.open{opacity:1;visibility:visible;transform:translateY(0);}
  .nav-links a{padding:14px 16px;font-size:16px;border-radius:12px;}
  .nav-links a.active::after{display:none;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:768px){
  body{font-size:16px;}
  .container{padding:0 16px;}
  .section{padding:64px 0;}
  .section-head{margin-bottom:34px;}
  .hero{padding:40px 0 62px;}
  .hero-actions .btn{flex:1 1 100%;}
  .risk-grid{grid-template-columns:1fr;}
  .risk-card{flex-direction:column;gap:16px;}
  .link-grid{grid-template-columns:1fr;}
  .contact-panel{padding:24px;}
  .form-row{grid-template-columns:1fr;}
  .cta-band{padding:40px 24px;}
  .cta-actions .btn{flex:1 1 100%;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .footer-bottom-inner{flex-direction:column;align-items:flex-start;}
  .brand-text strong{font-size:15px;}
}
@media (max-width:520px){
  .trust-strip{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .float-chip{top:14px;right:14px;padding:10px 13px;}
  .float-chip strong{font-size:16px;}
  .hero-meta{gap:10px 18px;}
  .btn{width:100%;}
  .nav-actions .btn-sm{display:none;}
}