/* roulang page: index */
:root{
  --c-bg:#060B14;
  --c-bg-alt:#0A1424;
  --c-surface:rgba(16,30,50,.55);
  --c-surface-solid:#0F1D31;
  --c-primary:#2F6BFF;
  --c-accent:#24E0C8;
  --c-warn:#FF7A2F;
  --c-text:#E8F0FA;
  --c-text-2:#A9BCD3;
  --c-text-3:#6E8299;
  --c-line:rgba(255,255,255,.08);
  --grad-main:linear-gradient(135deg,#24E0C8,#2F6BFF);
  --glow:0 0 0 1px rgba(36,224,200,.35),0 10px 30px rgba(36,224,200,.22);
  --shadow-card:0 18px 50px rgba(0,0,0,.45);
  --shadow-card-hover:0 24px 60px rgba(0,0,0,.55);
  --radius-card:18px;
  --radius-img:14px;
  --radius-btn:999px;
  --radius-input:12px;
  --font-cn:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-num:"Inter",system-ui,sans-serif;

  --bs-body-bg:var(--c-bg);
  --bs-body-color:var(--c-text);
  --bs-body-font-family:var(--font-cn);
  --bs-primary:#24E0C8;
  --bs-border-color:rgba(255,255,255,.08);
  --bs-border-radius:12px;
  --bs-link-color:#24E0C8;
  --bs-link-hover-color:#5ff0dd;
  --bs-font-sans-serif:var(--font-cn);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background:radial-gradient(900px 520px at 78% -6%,rgba(36,224,200,.10),transparent 60%),
             radial-gradient(760px 460px at 6% 12%,rgba(47,107,255,.12),transparent 62%);
  pointer-events:none;
  z-index:0;
}
img{max-width:100%;display:block;border-style:none}
a{color:var(--c-accent);text-decoration:none;transition:color .25s ease}
a:hover{color:#66f2e0}
button{font-family:inherit}
h1,h2,h3,h4,h5{font-weight:700;letter-spacing:.5px;color:var(--c-text);margin:0}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:3px;border-radius:6px}
::selection{background:rgba(36,224,200,.32);color:#fff}

.wrap{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px;position:relative;z-index:1}
@media (min-width:1400px){.wrap{max-width:1280px}}
@media (max-width:575.98px){.wrap{padding-left:16px;padding-right:16px}}

/* ============ 通用按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-family:inherit;font-size:15px;font-weight:600;line-height:1;
  padding:12px 24px;border-radius:var(--radius-btn);border:1px solid transparent;
  cursor:pointer;text-decoration:none;white-space:nowrap;
  transition:transform .28s ease,box-shadow .28s ease,background .28s ease,color .28s ease,border-color .28s ease;
}
.btn:focus-visible{outline:2px solid var(--c-accent);outline-offset:3px}
.btn-accent{background:var(--grad-main);color:#04121A;box-shadow:var(--glow)}
.btn-accent:hover{color:#04121A;transform:translateY(-2px);box-shadow:0 0 0 1px rgba(36,224,200,.55),0 16px 38px rgba(36,224,200,.34)}
.btn-accent:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(36,224,200,.4),0 6px 18px rgba(36,224,200,.22)}
.btn-ghost{background:rgba(255,255,255,.04);border-color:rgba(255,255,255,.16);color:var(--c-text)}
.btn-ghost:hover{color:var(--c-accent);border-color:rgba(36,224,200,.6);background:rgba(36,224,200,.08);transform:translateY(-2px)}
.btn-line{background:transparent;border-color:rgba(47,107,255,.55);color:#8fb2ff}
.btn-line:hover{background:rgba(47,107,255,.14);color:#c8d9ff;border-color:rgba(47,107,255,.85)}
.btn-sm{padding:9px 18px;font-size:14px}
.btn-lg{padding:15px 32px;font-size:16px}
.btn-block{width:100%}

.icon-btn{
  width:40px;height:40px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.05);border:1px solid var(--c-line);color:var(--c-text-2);
  cursor:pointer;transition:all .25s ease;
}
.icon-btn:hover{color:var(--c-accent);border-color:rgba(36,224,200,.55);background:rgba(36,224,200,.10)}

/* ============ 导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1200;height:72px;
  background:rgba(10,20,36,.35);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.08);
  box-shadow:0 8px 30px rgba(0,0,0,.25);
  transition:background .3s ease,box-shadow .3s ease,backdrop-filter .3s ease;
}
.site-header.is-stuck{
  background:rgba(6,11,20,.92);
  -webkit-backdrop-filter:blur(20px) saturate(150%);
  backdrop-filter:blur(20px) saturate(150%);
  box-shadow:0 14px 42px rgba(0,0,0,.55);
  border-bottom-color:rgba(36,224,200,.14);
}
.nav-inner{height:72px;display:flex;align-items:center;justify-content:space-between;gap:22px}

.brand{display:flex;align-items:center;gap:11px;flex-shrink:0;text-decoration:none}
.brand-mark{
  width:40px;height:40px;border-radius:13px;background:var(--grad-main);
  display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:800;color:#04121A;letter-spacing:0;
  box-shadow:0 8px 20px rgba(36,224,200,.28);
}
.brand-txt{display:flex;flex-direction:column;justify-content:center}
.brand-line1{font-size:16px;font-weight:700;line-height:1.2;color:var(--c-text);letter-spacing:.5px}
.brand-line2{font-size:12px;line-height:1.3;color:var(--c-text-3);letter-spacing:.5px}

.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.main-nav .nav-link{
  position:relative;display:inline-block;color:var(--c-text-2);font-size:15px;
  padding:9px 15px;border-radius:10px;text-decoration:none;
  transition:color .25s ease,background .25s ease;
}
.main-nav .nav-link:hover{color:var(--c-text);background:rgba(255,255,255,.06)}
.main-nav .nav-link.is-active{color:var(--c-text);font-weight:600}
.main-nav .nav-link.is-active::after{
  content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);
  width:20px;height:2px;border-radius:2px;background:var(--c-accent);
  box-shadow:0 0 10px rgba(36,224,200,.9);
}
.nav-actions{display:flex;align-items:center;gap:12px}
.nav-cta-mobile{display:none}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;align-items:center;justify-content:center;
  background:rgba(255,255,255,.05);border:1px solid var(--c-line);color:var(--c-text);
  cursor:pointer;transition:all .25s ease;
}
.nav-toggle:hover{border-color:rgba(36,224,200,.5);color:var(--c-accent)}

/* ============ Hero ============ */
.hero{
  position:relative;min-height:min(88vh,780px);
  display:flex;align-items:center;
  padding:132px 0 88px;overflow:hidden;
}
.hero-bg{
  position:absolute;inset:0;z-index:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,11,20,.45),rgba(6,11,20,.96));
}
.hero-mesh{
  position:absolute;inset:0;z-index:1;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:24px 24px;
  -webkit-mask-image:radial-gradient(ellipse at 52% 42%,#000 18%,transparent 76%);
  mask-image:radial-gradient(ellipse at 52% 42%,#000 18%,transparent 76%);
}
.hero-inner{
  position:relative;z-index:2;width:100%;
  display:grid;grid-template-columns:7fr 5fr;gap:60px;align-items:center;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:1px;color:var(--c-accent);
  background:rgba(36,224,200,.10);border:1px solid rgba(36,224,200,.32);
  padding:6px 14px;border-radius:999px;margin-bottom:22px;
}
.eyebrow i{font-size:12px}
.hero h1{
  font-size:clamp(30px,4.2vw,52px);
  line-height:1.15;font-weight:700;letter-spacing:.5px;margin-bottom:20px;
  background:linear-gradient(120deg,#FFFFFF 12%,#B9E9E2 48%,#7FB2FF 92%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{font-size:17px;line-height:1.85;color:var(--c-text-2);max-width:560px;margin-bottom:32px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:44px}
.hero-stats{display:flex;flex-wrap:wrap;gap:38px}
.hero-stats .stat-num{
  font-family:var(--font-num);font-size:28px;font-weight:700;color:var(--c-accent);
  line-height:1.2;display:block;letter-spacing:.5px;
}
.hero-stats .stat-label{font-size:13px;color:var(--c-text-3);display:block;margin-top:4px}

.hero-card{
  position:relative;background:var(--c-surface);
  -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
  border:1px solid var(--c-line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);overflow:hidden;
  transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.hero-card:hover{transform:translateY(-4px);border-color:rgba(36,224,200,.45);box-shadow:var(--shadow-card-hover)}
.hero-card__media{position:relative;aspect-ratio:4/3;overflow:hidden;background:var(--c-surface-solid)}
.hero-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .55s ease}
.hero-card:hover .hero-card__media img{transform:scale(1.05)}
.tag-corner{
  position:absolute;top:14px;left:14px;
  background:var(--c-warn);color:#200D02;font-size:12px;font-weight:700;letter-spacing:.5px;
  padding:6px 13px;border-radius:8px 10px 10px 2px;
  clip-path:polygon(0 0,100% 0,92% 100%,0 100%);
  box-shadow:0 8px 18px rgba(255,122,47,.35);
}
.hero-card__body{padding:22px 22px 24px}
.hero-card__body h3{font-size:19px;line-height:1.45;margin-bottom:12px}
.hero-card__meta{display:flex;flex-direction:column;gap:8px;margin-bottom:20px}
.hero-card__meta span{display:flex;align-items:flex-start;gap:9px;font-size:13.5px;color:var(--c-text-2);line-height:1.6}
.hero-card__meta i{color:var(--c-accent);font-size:13px;margin-top:4px}
.hero-card__foot{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding-top:18px;border-top:1px solid var(--c-line);
}
.status-dot{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--c-text-2)}
.status-dot::before{
  content:"";width:8px;height:8px;border-radius:50%;background:var(--c-accent);
  box-shadow:0 0 0 4px rgba(36,224,200,.16);
}

/* ============ 板块 ============ */
.section{padding:96px 0;position:relative}
.section-alt{background:var(--c-bg-alt)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:46px;flex-wrap:wrap}
.section-head h2{font-size:32px;line-height:1.25;margin-bottom:10px}
.section-head p{color:var(--c-text-2);font-size:15px;line-height:1.75;max-width:660px;margin:0}
.section-head .head-link{font-size:14px;color:var(--c-accent);display:inline-flex;align-items:center;gap:6px;white-space:nowrap}
.section-head .head-link:hover{gap:10px}
.head-line{width:56px;height:3px;border-radius:3px;background:var(--grad-main);margin-bottom:18px}

/* ============ 卡片网格 ============ */
.hot-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.hot-card{
  position:relative;display:flex;flex-direction:column;
  background:var(--c-surface);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border:1px solid var(--c-line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);overflow:hidden;
  transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
}
.hot-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-card-hover);border-color:rgba(36,224,200,.55)}
.hot-card__media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--c-surface-solid)}
.hot-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.hot-card:hover .hot-card__media img{transform:scale(1.05)}
.badge{
  position:absolute;top:12px;left:12px;font-size:12px;font-weight:600;letter-spacing:.5px;
  padding:5px 11px;border-radius:8px;background:rgba(6,11,20,.72);
  border:1px solid rgba(36,224,200,.4);color:var(--c-accent);
  -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
}
.badge-warn{background:rgba(255,122,47,.92);border-color:transparent;color:#200D02}
.hot-card__body{padding:20px 20px 22px;display:flex;flex-direction:column;flex:1 1 auto}
.hot-card__body h3{font-size:19px;line-height:1.45;margin-bottom:10px}
.hot-card__body p{font-size:14px;line-height:1.75;color:var(--c-text-2);margin-bottom:18px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.hot-card__foot{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--c-line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
}
.chip{
  display:inline-flex;align-items:center;gap:6px;font-size:12.5px;
  padding:4px 11px;border-radius:999px;
  background:rgba(47,107,255,.14);border:1px solid rgba(47,107,255,.32);color:#9DBCFF;
}
.chip-accent{background:rgba(36,224,200,.12);border-color:rgba(36,224,200,.34);color:var(--c-accent)}
.time-txt{font-size:12.5px;color:var(--c-text-3);font-family:var(--font-num)}
.hot-card--lead{grid-column:span 2;grid-row:span 2}
.hot-card--lead .hot-card__media{aspect-ratio:auto;flex:1 1 auto;min-height:250px}
.hot-card--lead .hot-card__body{padding:24px 26px 26px}
.hot-card--lead .hot-card__body h3{font-size:23px;line-height:1.4}
.hot-card--lead .hot-card__body p{font-size:14.5px;-webkit-line-clamp:3}

/* ============ 最新信息 ============ */
.news-list{display:flex;flex-direction:column;gap:12px}
.news-item{
  display:grid;grid-template-columns:170px 1fr;gap:22px;padding:16px 18px;
  background:rgba(255,255,255,.02);border:1px solid var(--c-line);
  border-radius:16px;text-decoration:none;color:inherit;
  transition:background .25s ease,border-color .25s ease,transform .25s ease;
}
.news-item:hover{background:rgba(255,255,255,.055);border-color:rgba(36,224,200,.4);transform:translateX(4px)}
.news-thumb{
  width:170px;height:112px;border-radius:var(--radius-img);overflow:hidden;position:relative;
  background:linear-gradient(135deg,rgba(36,224,200,.22),rgba(47,107,255,.30)),var(--c-surface-solid);
  display:flex;align-items:center;justify-content:center;
}
.news-thumb img{width:100%;height:100%;object-fit:cover}
.news-thumb__no{
  font-family:var(--font-num);font-size:32px;font-weight:700;
  color:rgba(255,255,255,.9);letter-spacing:1px;text-shadow:0 4px 18px rgba(0,0,0,.5);
}
.news-body{display:flex;flex-direction:column;min-width:0}
.news-body h3{
  font-size:18px;line-height:1.5;margin-bottom:8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color .25s ease;
}
.news-item:hover .news-body h3{color:var(--c-accent)}
.news-body p{
  font-size:14px;line-height:1.7;color:var(--c-text-2);margin-bottom:12px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-top:auto}
.empty-state{
  text-align:center;padding:64px 20px;border:1px dashed rgba(255,255,255,.14);
  border-radius:var(--radius-card);background:rgba(255,255,255,.02);
}
.empty-state i{font-size:34px;color:var(--c-text-3);margin-bottom:16px;display:block}
.empty-state p{color:var(--c-text-2);font-size:15px;margin-bottom:20px}

/* ============ 评价轮播 ============ */
.review-carousel{max-width:880px;margin:0 auto;position:relative;padding:0 0 58px}
.review-card{
  background:var(--c-surface);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  border:1px solid var(--c-line);border-radius:20px;
  box-shadow:var(--shadow-card);padding:34px 36px;
}
.review-head{display:flex;align-items:center;gap:16px;margin-bottom:20px}
.review-avatar{
  width:56px;height:56px;border-radius:50%;flex-shrink:0;
  background:var(--grad-main);color:#04121A;
  display:flex;align-items:center;justify-content:center;
  font-size:20px;font-weight:700;
  box-shadow:0 10px 24px rgba(36,224,200,.26);
}
.review-name{font-size:16px;font-weight:600;line-height:1.4}
.review-role{font-size:12.5px;color:var(--c-text-3)}
.review-stars{color:var(--c-accent);font-size:13px;letter-spacing:3px;margin-top:2px}
.review-text{font-size:17px;line-height:1.85;color:var(--c-text-2);margin:0}
.review-carousel .carousel-indicators{position:absolute;bottom:0;left:0;right:0;margin:0;display:flex;gap:8px;justify-content:center}
.review-carousel .carousel-indicators [data-bs-target]{
  width:24px;height:3px;border-radius:2px;background:rgba(255,255,255,.22);
  border:0;opacity:1;margin:0;transition:background .3s ease,width .3s ease;
}
.review-carousel .carousel-indicators .active{background:var(--c-accent);width:34px;box-shadow:0 0 12px rgba(36,224,200,.7)}
.review-carousel .carousel-control-prev,
.review-carousel .carousel-control-next{
  width:46px;height:46px;border-radius:50%;top:50%;transform:translateY(-50%);
  background:rgba(255,255,255,.06);border:1px solid var(--c-line);
  opacity:1;transition:all .25s ease;
}
.review-carousel .carousel-control-prev{left:-66px}
.review-carousel .carousel-control-next{right:-66px}
.review-carousel .carousel-control-prev:hover,
.review-carousel .carousel-control-next:hover{background:rgba(36,224,200,.16);border-color:rgba(36,224,200,.55)}

/* ============ 保障条 ============ */
.guard-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.guard-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius-card);
  padding:28px 24px;transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.guard-card:hover{transform:translateY(-4px);border-color:rgba(36,224,200,.45);box-shadow:var(--shadow-card)}
.guard-icon{
  width:52px;height:52px;border-radius:15px;display:flex;align-items:center;justify-content:center;
  border:1.5px solid rgba(36,224,200,.45);color:var(--c-accent);font-size:20px;margin-bottom:18px;
  background:rgba(36,224,200,.07);
}
.guard-card h3{font-size:16px;margin-bottom:8px}
.guard-card p{font-size:13.5px;line-height:1.7;color:var(--c-text-2);margin:0}

/* ============ CTA 条 ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:22px;
  background:linear-gradient(120deg,rgba(36,224,200,.16),rgba(47,107,255,.20)),rgba(10,20,36,.85);
  border:1px solid rgba(36,224,200,.28);
  padding:52px 56px;
  display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
  box-shadow:0 30px 70px rgba(0,0,0,.5);
}
.cta-band::after{
  content:"";position:absolute;right:-80px;top:-80px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(36,224,200,.28),transparent 68%);
  pointer-events:none;
}
.cta-band h2{font-size:28px;line-height:1.35;margin-bottom:10px;position:relative;z-index:1}
.cta-band p{font-size:15px;color:var(--c-text-2);margin:0;position:relative;z-index:1;max-width:620px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:1}

/* ============ FAQ ============ */
.faq-accordion{--bs-accordion-bg:transparent;--bs-accordion-border-width:0;--bs-accordion-border-radius:16px;display:flex;flex-direction:column;gap:12px}
.faq-accordion .accordion-item{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:16px;overflow:hidden;
  transition:border-color .25s ease,background .25s ease;
}
.faq-accordion .accordion-item:has(.accordion-button:not(.collapsed)){border-color:rgba(36,224,200,.5);background:rgba(16,30,50,.78)}
.faq-accordion .accordion-button{
  background:transparent;color:var(--c-text);font-size:17px;font-weight:600;font-family:inherit;
  padding:20px 24px 20px 60px;line-height:1.55;box-shadow:none;position:relative;
  transition:color .25s ease;
}
.faq-accordion .accordion-button::before{
  content:"\f059";font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;left:22px;top:50%;transform:translateY(-50%);
  font-size:16px;color:var(--c-accent);opacity:.9;
}
.faq-accordion .accordion-button::after{
  background-image:none;
  font-family:"Font Awesome 6 Free";font-weight:900;content:"\2b";
  width:auto;height:auto;transform:none;position:absolute;right:24px;top:50%;margin-top:-11px;
  font-size:14px;color:var(--c-text-3);transition:transform .3s ease,color .3s ease;
}
.faq-accordion .accordion-button:not(.collapsed){color:var(--c-accent)}
.faq-accordion .accordion-button:not(.collapsed)::after{content:"\f068";font-size:13px;color:var(--c-accent)}
.faq-accordion .accordion-button:not(.collapsed)::before{opacity:1}
.faq-accordion .accordion-button:focus{box-shadow:none;outline:2px solid var(--c-accent);outline-offset:-2px}
.faq-accordion .accordion-body{
  padding:0 24px 22px 60px;font-size:15px;line-height:1.8;color:var(--c-text-2);
  position:relative;
}
.faq-accordion .accordion-item:has(.accordion-button:not(.collapsed)) .accordion-body::before{
  content:"";position:absolute;left:24px;top:2px;bottom:22px;width:2px;border-radius:2px;
  background:var(--grad-main);opacity:.85;
}

/* ============ 页脚 ============ */
.site-footer{
  background:#050A12;border-top:1px solid var(--c-line);
  padding:72px 0 0;position:relative;z-index:1;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:42px;padding-bottom:52px}
.footer-brand .brand-line1{font-size:17px}
.footer-brand .brand-line2{font-size:12.5px}
.footer-desc{font-size:14px;line-height:1.8;color:var(--c-text-2);margin:18px 0 20px;max-width:320px}
.footer-social{display:flex;gap:10px}
.footer-social a{
  width:38px;height:38px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.05);border:1px solid var(--c-line);color:var(--c-text-2);
  transition:all .25s ease;
}
.footer-social a:hover{color:var(--c-accent);border-color:rgba(36,224,200,.5);background:rgba(36,224,200,.1);transform:translateY(-2px)}
.footer-col h4{
  font-size:15px;color:#8FB4FF;margin-bottom:18px;font-weight:600;letter-spacing:.5px;
}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a{font-size:14px;color:var(--c-text-2);display:inline-flex;align-items:center;gap:7px;transition:color .25s ease,transform .25s ease}
.footer-col a:hover{color:var(--c-accent);transform:translateX(3px)}
.footer-contact li{font-size:14px;color:var(--c-text-2);display:flex;gap:10px;line-height:1.7}
.footer-contact i{color:var(--c-accent);margin-top:5px;font-size:13px}
.footer-bottom{
  border-top:1px solid var(--c-line);padding:22px 0 28px;
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  font-size:13px;color:var(--c-text-3);
}
.footer-bottom .fb-links{display:flex;gap:20px;flex-wrap:wrap}
.footer-bottom a{color:var(--c-text-3)}
.footer-bottom a:hover{color:var(--c-accent)}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .hero-inner{grid-template-columns:6fr 5fr;gap:44px}
  .hot-card--lead .hot-card__media{min-height:220px}
}
@media (max-width:991.98px){
  .section{padding:72px 0}
  .hero{padding:112px 0 66px;min-height:auto}
  .hero-inner{grid-template-columns:1fr;gap:38px}
  .hero-sub{max-width:none}
  .hero-card{order:2;max-width:520px;width:100%}
  .hot-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .hot-card--lead{grid-column:span 2;grid-row:auto}
  .hot-card--lead .hot-card__media{aspect-ratio:16/9;flex:none;min-height:0}
  .guard-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .review-carousel .carousel-control-prev,
  .review-carousel .carousel-control-next{display:none}
  .cta-band{padding:40px 32px}

  .nav-toggle{display:inline-flex}
  .main-nav{
    position:fixed;top:0;right:0;left:auto;width:min(320px,88vw);height:100vh;
    background:rgba(8,15,28,.97);
    -webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);
    border-left:1px solid var(--c-line);box-shadow:-20px 0 60px rgba(0,0,0,.6);
    flex-direction:column;align-items:stretch;justify-content:flex-start;
    gap:6px;padding:92px 20px 32px;margin:0;
    transform:translateX(102%);transition:transform .34s cubic-bezier(.22,.61,.36,1);
    z-index:1400;overflow-y:auto;
  }
  .main-nav.is-open{transform:translateX(0)}
  .main-nav .nav-link{padding:0 16px;height:48px;line-height:48px;font-size:16px;border-radius:12px}
  .main-nav .nav-link.is-active{background:rgba(36,224,200,.12);color:var(--c-accent);font-weight:600}
  .main-nav .nav-link.is-active::after{display:none}
  .nav-cta-mobile{display:inline-flex;margin-top:20px}
  .nav-actions .btn-accent{display:none}
}
@media (max-width:767.98px){
  .section{padding:56px 0}
  .section-head{margin-bottom:32px;align-items:flex-start}
  .section-head h2{font-size:25px}
  .hero h1{font-size:29px}
  .hero-sub{font-size:15.5px}
  .hero-cta .btn{width:100%}
  .hero-stats{gap:26px}
  .hero-stats .stat-num{font-size:23px}
  .hot-grid{grid-template-columns:1fr}
  .hot-card--lead{grid-column:span 1}
  .news-item{grid-template-columns:1fr;gap:14px}
  .news-thumb{width:100%;height:150px}
  .news-item:hover{transform:none}
  .guard-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
  .guard-card{padding:22px 18px}
  .review-card{padding:24px 20px}
  .review-text{font-size:15.5px}
  .cta-band{padding:32px 22px;border-radius:18px}
  .cta-band h2{font-size:22px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .faq-accordion .accordion-button{font-size:15.5px;padding:18px 18px 18px 52px}
  .faq-accordion .accordion-button::before{left:18px}
  .faq-accordion .accordion-button::after{right:18px}
  .faq-accordion .accordion-body{padding:0 18px 20px 52px}
  .faq-accordion .accordion-item:has(.accordion-button:not(.collapsed)) .accordion-body::before{left:18px}
  .footer-grid{grid-template-columns:1fr;gap:32px;padding-bottom:36px}
  .site-footer{padding-top:52px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:12px}
}
@media (max-width:575.98px){
  .brand-line2{display:none}
  .hero-stats{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
}
@media (min-width:992px) and (max-width:1199.98px){
  .hot-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
}

/* roulang page: article */
:root{
  --c-bg:#060B14;
  --c-bg-alt:#0A1424;
  --c-surface:rgba(16,30,50,.55);
  --c-surface-solid:#0F1D31;
  --c-primary:#2F6BFF;
  --c-accent:#24E0C8;
  --c-warn:#FF7A2F;
  --c-text:#E8F0FA;
  --c-text-2:#A9BCD3;
  --c-text-3:#6E8299;
  --c-line:rgba(255,255,255,.08);
  --grad-main:linear-gradient(135deg,#24E0C8,#2F6BFF);
  --glow-accent:0 0 0 1px rgba(36,224,200,.35), 0 10px 30px rgba(36,224,200,.22);
  --shadow-card:0 18px 50px rgba(0,0,0,.45);
  --shadow-card-hover:0 24px 60px rgba(0,0,0,.55);
  --r-card:18px;
  --r-img:14px;
  --r-input:12px;
  --r-pill:999px;
  --font-cn:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-num:"Inter",system-ui,sans-serif;
  --bs-primary:#2F6BFF;
  --bs-body-bg:#060B14;
  --bs-body-color:#E8F0FA;
  --bs-border-color:rgba(255,255,255,.08);
  --bs-border-radius:18px;
  --bs-font-sans-serif:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  overflow-x:hidden;
  padding-top:72px;
}
body.is-locked{overflow:hidden;}
a{color:inherit;text-decoration:none;transition:color .28s ease,border-color .28s ease,background .28s ease;}
a:hover{color:var(--c-accent);}
img{max-width:100%;height:auto;display:block;border-radius:var(--r-img);}
button,input{font:inherit;color:inherit;}
button{background:none;border:0;cursor:pointer;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.5px;color:var(--c-text);}
p{margin:0 0 1.6em;}
ul,ol{margin:0 0 1.6em;padding-left:1.3em;}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:3px;border-radius:6px;}
::selection{background:rgba(36,224,200,.28);color:#fff;}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:1400px){.wrap{max-width:1280px;}}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  background:rgba(10,20,36,.35);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid var(--c-line);
  box-shadow:0 8px 30px rgba(0,0,0,.25);
  transition:background .3s ease,box-shadow .3s ease;
}
.site-header.is-stuck{background:rgba(6,11,20,.92);box-shadow:0 10px 34px rgba(0,0,0,.5);}
.nav-inner{display:flex;align-items:center;gap:24px;height:72px;}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.brand-mark{
  width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
  background:var(--grad-main);color:#04121A;font-weight:700;font-size:16px;letter-spacing:0;
  box-shadow:0 0 0 1px rgba(36,224,200,.35),0 8px 22px rgba(36,224,200,.18);
}
.brand-txt{display:flex;flex-direction:column;line-height:1.15;}
.brand-line1{font-size:16px;font-weight:700;color:var(--c-text);}
.brand-line2{font-size:12px;font-weight:400;color:var(--c-text-3);letter-spacing:.5px;}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:auto;}
.nav-link{
  position:relative;padding:10px 14px;font-size:15px;color:var(--c-text-2);border-radius:10px;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);
  width:0;height:2px;border-radius:2px;background:var(--c-accent);transition:width .28s ease;
}
.nav-link:hover{color:var(--c-text);background:rgba(255,255,255,.04);}
.nav-link:hover::after,.nav-link.is-active::after{width:20px;}
.nav-link.is-active{color:var(--c-text);}
.nav-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.icon-btn{
  width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
  border:1px solid var(--c-line);background:rgba(255,255,255,.03);color:var(--c-text-2);
  transition:all .28s ease;
}
.icon-btn:hover{color:var(--c-accent);border-color:rgba(36,224,200,.45);box-shadow:0 0 0 1px rgba(36,224,200,.25);}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:12px;place-items:center;
  border:1px solid var(--c-line);background:rgba(255,255,255,.03);color:var(--c-text);
}
.nav-cta-mobile{display:none;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-pill);font-weight:700;letter-spacing:.5px;
  padding:13px 26px;font-size:15px;border:1px solid transparent;
  transition:transform .28s ease,box-shadow .28s ease,background .28s ease,color .28s ease,border-color .28s ease;
}
.btn-accent{background:var(--grad-main);color:#04121A;box-shadow:var(--glow-accent);}
.btn-accent:hover{color:#04121A;transform:translateY(-2px);box-shadow:0 0 0 1px rgba(36,224,200,.55),0 16px 38px rgba(36,224,200,.32);}
.btn-accent:active{transform:translateY(0);}
.btn-ghost{background:rgba(255,255,255,.04);color:var(--c-text);border-color:var(--c-line);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);}
.btn-ghost:hover{color:var(--c-accent);border-color:rgba(36,224,200,.5);transform:translateY(-2px);}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn-block{width:100%;}

/* ---------- 面包屑 ---------- */
.crumb-bar{border-bottom:1px solid var(--c-line);background:linear-gradient(180deg,rgba(10,20,36,.85),rgba(6,11,20,.6));}
.breadcrumb-nav{padding:18px 0;}
.breadcrumb-nav ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;list-style:none;margin:0;padding:0;font-size:13px;color:var(--c-text-3);}
.breadcrumb-nav li{display:flex;align-items:center;gap:8px;}
.breadcrumb-nav li::after{content:"/";color:var(--c-text-3);opacity:.6;}
.breadcrumb-nav li:last-child::after{content:"";}
.breadcrumb-nav a{color:var(--c-text-2);}
.breadcrumb-nav a:hover{color:var(--c-accent);}
.breadcrumb-nav .current{color:var(--c-text-2);max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- 文章头部 ---------- */
.article-hero{
  position:relative;padding:56px 0 40px;overflow:hidden;
  background-image:linear-gradient(180deg,rgba(6,11,20,.55),rgba(6,11,20,.96)),url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
}
.article-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.06;
  background-image:linear-gradient(rgba(255,255,255,.5) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.5) 1px,transparent 1px);
  background-size:24px 24px;
}
.article-hero .wrap{position:relative;z-index:1;}
.hero-chip{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:var(--r-pill);
  background:rgba(36,224,200,.12);border:1px solid rgba(36,224,200,.32);color:var(--c-accent);
  font-size:13px;font-weight:700;letter-spacing:.5px;margin-bottom:20px;
}
.article-h1{font-size:44px;line-height:1.18;max-width:900px;margin-bottom:20px;}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;
  padding-top:20px;border-top:1px solid var(--c-line);
  font-size:13.5px;color:var(--c-text-3);font-family:var(--font-num);
}
.meta-row .meta-item{display:inline-flex;align-items:center;gap:8px;}
.meta-row i{color:var(--c-accent);font-size:14px;}
.meta-row .meta-cat{color:var(--c-warn);}

/* ---------- 布局 ---------- */
.layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:44px;align-items:start;padding:56px 0 72px;}
.article-body{max-width:760px;font-size:16px;line-height:1.85;color:var(--c-text-2);}
.article-body h2{
  position:relative;padding-left:16px;margin:48px 0 16px;font-size:32px;line-height:1.3;color:var(--c-text);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:3px;border-radius:2px;background:var(--grad-main);
}
.article-body h3{font-size:20px;margin:32px 0 12px;color:var(--c-text);}
.article-body h4{font-size:17px;margin:26px 0 10px;color:var(--c-text);}
.article-body p{margin:0 0 1.6em;}
.article-body a{color:var(--c-accent);border-bottom:1px solid rgba(36,224,200,.35);}
.article-body a:hover{color:var(--c-text);border-color:var(--c-text);}
.article-body ul,.article-body ol{padding-left:1.35em;line-height:1.9;}
.article-body li{margin-bottom:8px;}
.article-body blockquote{
  margin:28px 0;padding:18px 22px;border-left:3px solid var(--c-primary);
  background:var(--c-surface);border-radius:0 var(--r-input) var(--r-input) 0;
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);color:var(--c-text-2);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:12px;margin:24px auto;max-width:100%;height:auto;}
.article-body figure{margin:28px 0;}
.article-body figcaption{text-align:center;font-size:13px;color:var(--c-text-3);margin-top:10px;}
.article-body table{
  width:100%;border-collapse:collapse;margin:26px 0;overflow:hidden;
  border-radius:var(--r-input);background:rgba(16,30,50,.5);
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);font-size:14.5px;
}
.article-body th,.article-body td{padding:12px 16px;border:0;text-align:left;}
.article-body thead th{color:var(--c-accent);font-weight:700;background:rgba(36,224,200,.07);}
.article-body tbody tr:nth-child(even){background:rgba(255,255,255,.03);}
.article-body code{background:rgba(47,107,255,.16);color:#BFD4FF;padding:2px 7px;border-radius:6px;font-family:var(--font-num);font-size:14px;}
.article-body hr{border:0;border-top:1px solid var(--c-line);margin:40px 0;}

/* 空态 */
.empty-state{
  padding:56px 28px;text-align:center;border-radius:var(--r-card);
  background:var(--c-surface);border:1px solid var(--c-line);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
}
.empty-state i{font-size:34px;color:var(--c-accent);margin-bottom:16px;display:block;}
.empty-state h3{font-size:20px;margin-bottom:10px;}
.empty-state p{color:var(--c-text-3);margin-bottom:22px;}

/* ---------- 侧栏 ---------- */
.side-col{display:flex;flex-direction:column;gap:22px;position:sticky;top:96px;}
.glass-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:22px;-webkit-backdrop-filter:blur(14px) saturate(140%);backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow-card);transition:box-shadow .28s ease,transform .28s ease,border-color .28s ease;
}
.glass-card:hover{box-shadow:var(--shadow-card-hover);border-color:rgba(36,224,200,.35);transform:translateY(-4px);}
.side-title{display:flex;align-items:center;gap:10px;font-size:15px;color:var(--c-text);margin-bottom:16px;letter-spacing:.5px;}
.side-title i{color:var(--c-accent);}
.toc-list{list-style:none;margin:0;padding:0;font-size:14px;}
.toc-list li{margin-bottom:4px;}
.toc-list a{display:block;padding:8px 10px;border-radius:10px;color:var(--c-text-2);border-left:2px solid transparent;}
.toc-list a:hover{background:rgba(255,255,255,.05);color:var(--c-accent);border-left-color:var(--c-accent);}
.toc-empty{font-size:13.5px;color:var(--c-text-3);margin:0;}
.side-links{list-style:none;margin:0;padding:0;font-size:14.5px;}
.side-links li+li{border-top:1px solid var(--c-line);}
.side-links a{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:12px 2px;color:var(--c-text-2);}
.side-links a i{color:var(--c-text-3);font-size:12px;transition:transform .28s ease,color .28s ease;}
.side-links a:hover{color:var(--c-accent);}
.side-links a:hover i{color:var(--c-accent);transform:translateX(4px);}
.side-note{font-size:13.5px;color:var(--c-text-3);line-height:1.7;margin:0 0 16px;}

/* ---------- 尾部 / 标签 / 相关 ---------- */
.article-tail{max-width:760px;margin-top:48px;padding-top:32px;border-top:1px solid var(--c-line);}
.tag-block{margin-bottom:34px;}
.tag-block h4{font-size:15px;margin-bottom:14px;color:var(--c-text-2);}
.tag-list{list-style:none;display:flex;flex-wrap:wrap;gap:10px;padding:0;margin:0;}
.tag-list a{
  display:inline-flex;align-items:center;padding:7px 15px;border-radius:var(--r-pill);
  font-size:13px;color:var(--c-text-2);background:rgba(255,255,255,.04);border:1px solid var(--c-line);
}
.tag-list a:hover{color:var(--c-accent);border-color:rgba(36,224,200,.45);background:rgba(36,224,200,.08);}
.tail-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}

.related{padding:0 0 84px;}
.sec-head{margin-bottom:32px;}
.sec-head h2{font-size:32px;margin-bottom:10px;}
.sec-head p{color:var(--c-text-3);margin:0;font-size:15px;}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.content-card{
  position:relative;display:flex;flex-direction:column;overflow:hidden;
  background:var(--c-surface-solid);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--shadow-card);transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
}
.content-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-card-hover);border-color:rgba(36,224,200,.45);}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:#0B1626;}
.card-media img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .5s ease;}
.content-card:hover .card-media img{transform:scale(1.05);}
.card-badge{
  position:absolute;left:14px;top:14px;padding:5px 12px;border-radius:var(--r-pill);
  font-size:12px;font-weight:700;color:#2A1000;background:var(--c-warn);letter-spacing:.5px;
}
.card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-body h3{font-size:19px;line-height:1.45;}
.card-body p{font-size:14px;color:var(--c-text-3);margin:0;line-height:1.7;}
.card-foot{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--c-line);
  display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--c-text-3);
  font-family:var(--font-num);
}
.card-foot .cf-cat{color:var(--c-accent);}

/* ---------- CTA ---------- */
.cta-band{padding:0 0 96px;}
.cta-inner{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px;
  padding:38px 40px;border-radius:var(--r-card);
  background:linear-gradient(120deg,rgba(36,224,200,.14),rgba(47,107,255,.12)),var(--c-surface-solid);
  border:1px solid rgba(36,224,200,.28);box-shadow:var(--shadow-card);
}
.cta-inner h2{font-size:26px;margin-bottom:8px;}
.cta-inner p{margin:0;color:var(--c-text-2);font-size:15px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ---------- 页脚 ---------- */
.site-footer{background:#050A12;border-top:1px solid var(--c-line);padding:64px 0 0;margin-top:auto;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:44px;}
.footer-brand .brand{margin-bottom:18px;}
.footer-desc{font-size:14px;color:var(--c-text-3);line-height:1.8;margin:0 0 20px;max-width:320px;}
.footer-social{display:flex;gap:12px;}
.footer-social a{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  border:1px solid var(--c-line);background:rgba(255,255,255,.03);color:var(--c-text-2);font-size:15px;
}
.footer-social a:hover{color:var(--c-accent);border-color:rgba(36,224,200,.45);transform:translateY(-2px);}
.footer-col h4{font-size:15px;color:var(--c-primary);margin-bottom:18px;letter-spacing:.5px;}
.footer-col ul{list-style:none;margin:0;padding:0;}
.footer-col li{margin-bottom:11px;}
.footer-col a{font-size:14px;color:var(--c-text-2);}
.footer-col a:hover{color:var(--c-accent);}
.footer-contact li{display:flex;gap:10px;font-size:13.5px;color:var(--c-text-3);line-height:1.7;}
.footer-contact i{color:var(--c-accent);margin-top:5px;}
.footer-bottom{
  border-top:1px solid var(--c-line);padding:20px 0 26px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--c-text-3);font-family:var(--font-num);
}
.fb-links{display:flex;flex-wrap:wrap;gap:18px;}
.fb-links a{color:var(--c-text-3);}
.fb-links a:hover{color:var(--c-accent);}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  .layout{grid-template-columns:minmax(0,1fr) 290px;gap:32px;}
  .article-h1{font-size:40px;}
}
@media (max-width:992px){
  body{padding-top:64px;}
  .nav-inner{height:64px;gap:14px;}
  .main-nav{
    position:fixed;top:0;right:0;height:100vh;width:290px;max-width:86vw;
    flex-direction:column;align-items:stretch;gap:4px;margin:0;
    padding:86px 20px 28px;
    background:rgba(8,16,28,.96);
    -webkit-backdrop-filter:blur(20px) saturate(140%);backdrop-filter:blur(20px) saturate(140%);
    border-left:1px solid var(--c-line);
    transform:translateX(100%);transition:transform .32s ease;z-index:1002;overflow-y:auto;
  }
  .main-nav.is-open{transform:translateX(0);}
  .nav-link{height:48px;display:flex;align-items:center;font-size:16px;border-radius:12px;}
  .nav-link::after{display:none;}
  .nav-link.is-active{background:rgba(36,224,200,.1);color:var(--c-accent);}
  .nav-cta-mobile{display:inline-flex;margin-top:20px;}
  .nav-toggle{display:grid;}
  .layout{grid-template-columns:minmax(0,1fr);padding:40px 0 56px;}
  .side-col{position:static;top:auto;}
  .article-h1{font-size:32px;}
  .article-body h2{font-size:26px;margin-top:40px;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;}
  .cta-inner{padding:30px 26px;}
}
@media (max-width:768px){
  .article-hero{padding:40px 0 30px;}
  .article-body{font-size:16px;}
  .article-body h2{font-size:23px;margin-top:34px;}
  .article-body h3{font-size:19px;}
  .breadcrumb-nav .current{max-width:220px;}
  .related{padding-bottom:60px;}
  .cta-band{padding-bottom:64px;}
  .sec-head h2{font-size:26px;}
}
@media (max-width:576px){
  .wrap{padding:0 16px;}
  .article-h1{font-size:28px;}
  .brand-line2{display:none;}
  .card-grid{grid-template-columns:minmax(0,1fr);}
  .footer-grid{grid-template-columns:minmax(0,1fr);}
  .cta-actions .btn,.tail-actions .btn{width:100%;}
  .icon-btn{display:none;}
}

/* roulang page: category1 */
:root{
  --c-bg:#060B14;
  --c-bg-alt:#0A1424;
  --c-surface:rgba(16,30,50,.55);
  --c-surface-solid:#0F1D31;
  --c-primary:#2F6BFF;
  --c-accent:#24E0C8;
  --c-warn:#FF7A2F;
  --c-text:#E8F0FA;
  --c-text-2:#A9BCD3;
  --c-text-3:#6E8299;
  --c-line:rgba(255,255,255,.08);
  --grad-main:linear-gradient(135deg,#24E0C8,#2F6BFF);
  --glow:0 0 0 1px rgba(36,224,200,.35),0 10px 30px rgba(36,224,200,.22);
  --r-card:18px;
  --r-img:14px;
  --r-btn:12px;
  --shadow-card:0 18px 50px rgba(0,0,0,.45);
  --shadow-hover:0 24px 60px rgba(0,0,0,.55);
  --bs-primary:#2F6BFF;
  --bs-body-bg:#060B14;
  --bs-body-color:#E8F0FA;
  --bs-border-color:rgba(255,255,255,.08);
  --bs-border-radius:12px;
  --bs-font-sans-serif:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --bs-link-color:#2F6BFF;
  --bs-link-hover-color:#24E0C8;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.nav-open{overflow:hidden}
img{max-width:100%;display:block}
a{color:var(--c-primary);text-decoration:none;transition:color .25s ease}
a:hover{color:var(--c-accent)}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.5px;color:var(--c-text)}
p{margin:0 0 1.2em}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:3px}
::selection{background:rgba(36,224,200,.28);color:#fff}

.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:1400px){.wrap{max-width:1280px}}
@media (max-width:575.98px){.wrap{padding:0 16px}}

.sec{padding:96px 0;position:relative}
.sec-alt{background:var(--c-bg-alt)}
@media (max-width:991.98px){.sec{padding:72px 0}}
@media (max-width:767.98px){.sec{padding:56px 0}}

.sec-head{max-width:720px;margin-bottom:48px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.sec-tag{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:1px;
  color:var(--c-accent);text-transform:uppercase;
  padding:6px 14px;border-radius:999px;
  border:1px solid rgba(36,224,200,.3);
  background:rgba(36,224,200,.07);margin-bottom:18px;
}
.sec-head h2{font-size:32px;line-height:1.25;margin-bottom:14px}
.sec-head p{color:var(--c-text-2);font-size:16px;margin:0}
@media (max-width:767.98px){.sec-head h2{font-size:26px}}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-weight:700;font-size:15px;line-height:1;
  border-radius:999px;border:1px solid transparent;
  padding:13px 28px;cursor:pointer;
  transition:transform .28s ease,box-shadow .28s ease,background .28s ease,color .28s ease,border-color .28s ease;
}
.btn-accent{background:var(--grad-main);color:#04121A;box-shadow:var(--glow)}
.btn-accent:hover{color:#04121A;transform:translateY(-2px);box-shadow:0 0 0 1px rgba(36,224,200,.5),0 14px 36px rgba(36,224,200,.34)}
.btn-accent:active{transform:translateY(0)}
.btn-ghost{background:rgba(255,255,255,.04);border-color:rgba(255,255,255,.16);color:var(--c-text);backdrop-filter:blur(10px)}
.btn-ghost:hover{color:var(--c-accent);border-color:rgba(36,224,200,.6);transform:translateY(-2px)}
.btn-sm{padding:10px 20px;font-size:14px}
.btn-lg{padding:15px 34px;font-size:16px}
.btn-block{width:100%}

/* ============ 导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1030;
  background:rgba(10,20,36,.35);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid var(--c-line);
  box-shadow:0 8px 30px rgba(0,0,0,.25);
  transition:background .3s ease,box-shadow .3s ease,backdrop-filter .3s ease;
}
.site-header.is-stuck{
  background:rgba(6,11,20,.92);
  backdrop-filter:blur(20px) saturate(150%);
  -webkit-backdrop-filter:blur(20px) saturate(150%);
  box-shadow:0 14px 42px rgba(0,0,0,.5);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:24px}
.brand{display:flex;align-items:center;gap:11px;text-decoration:none;flex-shrink:0}
.brand-mark{
  width:42px;height:42px;border-radius:13px;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  background:var(--grad-main);color:#04121A;
  font-weight:800;font-size:16px;letter-spacing:0;
  box-shadow:0 8px 22px rgba(36,224,200,.3);
}
.brand-txt{display:flex;flex-direction:column;line-height:1.15}
.brand-line1{font-size:17px;font-weight:700;color:var(--c-text);letter-spacing:.6px}
.brand-line2{font-size:12px;color:var(--c-text-3);letter-spacing:1.4px}
.main-nav{display:flex;align-items:center;gap:30px}
.nav-link{
  position:relative;font-size:15px;color:var(--c-text-2);
  padding:6px 0;font-weight:500;white-space:nowrap;
}
.nav-link:hover{color:var(--c-text)}
.nav-link.is-active{color:#fff;font-weight:700}
.nav-link.is-active::after{
  content:"";position:absolute;left:0;bottom:-4px;width:20px;height:2px;
  background:var(--c-accent);border-radius:2px;box-shadow:0 0 10px rgba(36,224,200,.8);
}
.nav-actions{display:flex;align-items:center;gap:14px;flex-shrink:0}
.icon-btn{
  width:40px;height:40px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.05);border:1px solid var(--c-line);
  color:var(--c-text-2);cursor:pointer;transition:.25s ease;font-size:15px;
}
.icon-btn:hover{color:var(--c-accent);border-color:rgba(36,224,200,.5);transform:translateY(-2px)}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  background:rgba(255,255,255,.05);border:1px solid var(--c-line);
  color:var(--c-text);font-size:17px;cursor:pointer;transition:.25s ease;
}
.nav-toggle:hover{color:var(--c-accent);border-color:rgba(36,224,200,.5)}
.nav-cta-mobile{display:none}

/* ============ Hero ============ */
.hero{
  position:relative;padding:150px 0 88px;overflow:hidden;
  background-image:linear-gradient(180deg,rgba(6,11,20,.45),rgba(6,11,20,.96)),url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;
  min-height:640px;display:flex;align-items:center;
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.06;
  background-image:linear-gradient(rgba(255,255,255,.9) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.9) 1px,transparent 1px);
  background-size:24px 24px;
}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center;width:100%}
.hero h1{font-size:48px;line-height:1.15;margin:16px 0 20px}
.hero h1 .hl{
  background:var(--grad-main);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{font-size:17px;color:var(--c-text-2);max-width:560px;margin-bottom:14px}
.hero-desc{font-size:15px;color:var(--c-text-3);max-width:560px;margin-bottom:32px}
.hero-btns{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:42px}
.hero-stats{display:flex;flex-wrap:wrap;gap:44px}
.stat-num{
  font-family:"Inter",system-ui,sans-serif;font-size:28px;font-weight:800;
  color:var(--c-accent);line-height:1.2;letter-spacing:.5px;
}
.stat-lb{font-size:13px;color:var(--c-text-3);letter-spacing:.5px}

.hero-card{
  background:var(--c-surface);backdrop-filter:blur(18px) saturate(140%);
  border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--shadow-card);padding:18px;position:relative;
  transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.hero-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(36,224,200,.45)}
.hero-card .card-media{position:relative;border-radius:var(--r-img);overflow:hidden;aspect-ratio:4/3;background:#0B1626}
.hero-card .card-media img{width:100%;height:100%;object-fit:cover}
.badge-corner{
  position:absolute;top:12px;left:12px;z-index:3;
  background:linear-gradient(135deg,#FF9B52,#FF7A2F);color:#2A1200;
  font-size:12px;font-weight:800;padding:6px 13px;border-radius:999px;
  box-shadow:0 8px 20px rgba(255,122,47,.35);
}
.hero-card h3{font-size:20px;margin:18px 0 10px}
.hero-card .meta-lines{font-size:13.5px;color:var(--c-text-2);line-height:1.9;margin-bottom:16px}
.hero-card .meta-lines span{color:var(--c-accent);font-weight:700}
.hero-card .card-foot{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding-top:16px;border-top:1px solid var(--c-line);
}
.card-state{font-size:13px;color:var(--c-text-3)}
.card-state b{display:block;color:var(--c-accent);font-size:16px;font-family:"Inter",system-ui,sans-serif}

@media (max-width:991.98px){
  .hero{padding:120px 0 64px;min-height:auto}
  .hero-inner{grid-template-columns:1fr;gap:40px}
  .hero h1{font-size:32px}
  .hero-stats{gap:28px}
  .hero-card{order:-1}
}
@media (max-width:575.98px){
  .hero h1{font-size:28px}
  .hero-btns .btn{width:100%}
  .hero-stats{gap:22px}
  .stat-num{font-size:24px}
}

/* ============ 四步图文 ============ */
.zig-list{margin-top:10px}
.zig-row{
  display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center;
  padding:44px 0;border-top:1px solid var(--c-line);
}
.zig-row:first-child{border-top:0;padding-top:10px}
.zig-media{position:relative;border-radius:var(--r-card);overflow:hidden;aspect-ratio:4/3;border:1px solid var(--c-line);box-shadow:var(--shadow-card)}
.zig-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.zig-row:hover .zig-media img{transform:scale(1.045)}
.zig-media .step-no{
  position:absolute;left:16px;bottom:16px;z-index:2;
  background:rgba(6,11,20,.72);backdrop-filter:blur(8px);
  border:1px solid rgba(36,224,200,.35);color:var(--c-accent);
  font-family:"Inter",system-ui,sans-serif;font-weight:800;font-size:14px;
  padding:7px 15px;border-radius:999px;letter-spacing:1px;
}
.zig-body h3{font-size:22px;margin-bottom:14px}
.zig-body p{color:var(--c-text-2);font-size:15.5px;margin-bottom:20px}
.point-list li{
  display:flex;gap:12px;align-items:flex-start;
  padding:11px 0;border-bottom:1px dashed rgba(255,255,255,.07);
  color:var(--c-text-2);font-size:15px;line-height:1.7;
}
.point-list li:last-child{border-bottom:0}
.point-list i{color:var(--c-accent);font-size:15px;margin-top:5px;flex-shrink:0}
.zig-row.rev .zig-media{order:2}
.zig-row.rev .zig-body{order:1}
@media (max-width:991.98px){
  .zig-row{grid-template-columns:1fr;gap:26px;padding:34px 0}
  .zig-row.rev .zig-media,
  .zig-row.rev .zig-body{order:0}
  .zig-row .zig-media{order:-1}
}

/* ============ 自检卡片 ============ */
.check-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.check-card{
  background:var(--c-surface);backdrop-filter:blur(14px);
  border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:28px 24px;box-shadow:var(--shadow-card);
  transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
  position:relative;overflow:hidden;
}
.check-card::before{
  content:"";position:absolute;top:0;left:0;width:52px;height:3px;
  background:var(--grad-main);border-radius:0 0 4px 0;
}
.check-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(36,224,200,.45)}
.check-ico{
  width:46px;height:46px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  border:1.5px solid rgba(36,224,200,.45);color:var(--c-accent);font-size:18px;margin-bottom:18px;
  background:rgba(36,224,200,.06);
}
.check-card h3{font-size:17px;margin-bottom:10px}
.check-card p{font-size:14px;color:var(--c-text-2);margin:0;line-height:1.8}
@media (max-width:991.98px){.check-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:575.98px){.check-grid{grid-template-columns:1fr;gap:16px}}

/* ============ 保障条 ============ */
.guar-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.guar-item{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:26px 22px;
  display:flex;flex-direction:column;gap:12px;
  transition:border-color .28s ease,transform .28s ease;
}
.guar-item:hover{border-color:rgba(36,224,200,.42);transform:translateY(-3px)}
.guar-item i{font-size:28px;color:var(--c-accent);line-height:1}
.guar-item h3{font-size:16px}
.guar-item p{font-size:13.5px;color:var(--c-text-2);margin:0;line-height:1.75}
@media (max-width:767.98px){
  .guar-grid{grid-template-columns:repeat(2,1fr);gap:16px}
  .guar-item{padding:20px 18px}
}

/* ============ FAQ ============ */
.fmt-accordion .accordion-item{
  background:var(--c-surface);backdrop-filter:blur(14px);
  border:1px solid var(--c-line);border-radius:16px;
  margin-bottom:12px;overflow:hidden;transition:border-color .28s ease;
}
.fmt-accordion .accordion-item:has(.accordion-button:not(.collapsed)){
  border-left:2px solid var(--c-accent);border-color:rgba(36,224,200,.35);
}
.fmt-accordion .accordion-button{
  position:relative;background:transparent;color:var(--c-text);
  font-size:17px;font-weight:700;padding:20px 56px 20px 60px;
  box-shadow:none;border:0;border-radius:16px;letter-spacing:.3px;line-height:1.6;
}
.fmt-accordion .accordion-button:not(.collapsed){color:var(--c-accent);background:rgba(36,224,200,.05)}
.fmt-accordion .accordion-button:focus{box-shadow:none;outline:2px solid var(--c-accent);outline-offset:-3px}
.fmt-accordion .accordion-button::after{display:none}
.fmt-accordion .accordion-button::before{
  content:"+";position:absolute;left:20px;top:50%;transform:translateY(-50%);
  width:26px;height:26px;border-radius:50%;
  border:1px solid rgba(36,224,200,.5);color:var(--c-accent);
  display:flex;align-items:center;justify-content:center;
  font-size:16px;font-weight:400;line-height:1;background:rgba(36,224,200,.08);
}
.fmt-accordion .accordion-button:not(.collapsed)::before{content:"\2212"}
.fmt-accordion .accordion-body{
  padding:0 30px 24px 60px;color:var(--c-text-2);font-size:15px;line-height:1.8;
}
.fmt-accordion .accordion-body p:last-child{margin-bottom:0}
@media (max-width:575.98px){
  .fmt-accordion .accordion-button{font-size:15.5px;padding:18px 20px 18px 54px}
  .fmt-accordion .accordion-body{padding:0 20px 20px 54px;font-size:14.5px}
}

/* ============ CTA 条 ============ */
.cta-band{
  background:linear-gradient(120deg,rgba(36,224,200,.12),rgba(47,107,255,.12));
  border:1px solid rgba(36,224,200,.28);border-radius:24px;
  padding:46px 48px;display:flex;align-items:center;justify-content:space-between;
  gap:32px;box-shadow:var(--shadow-card);position:relative;overflow:hidden;
  backdrop-filter:blur(16px);
}
.cta-band::after{
  content:"";position:absolute;top:-60px;right:-40px;width:240px;height:240px;border-radius:50%;
  background:radial-gradient(circle,rgba(36,224,200,.22),transparent 68%);pointer-events:none;
}
.cta-band h2{font-size:28px;margin-bottom:12px;position:relative;z-index:2}
.cta-band p{color:var(--c-text-2);font-size:15px;margin:0;max-width:620px;position:relative;z-index:2}
.cta-band .cta-actions{display:flex;gap:14px;flex-shrink:0;position:relative;z-index:2;flex-wrap:wrap}
@media (max-width:991.98px){
  .cta-band{flex-direction:column;align-items:flex-start;padding:34px 26px}
  .cta-band h2{font-size:23px}
  .cta-band .cta-actions{width:100%}
  .cta-band .cta-actions .btn{width:100%}
}

/* ============ 页脚 ============ */
.site-footer{
  background:#050A12;border-top:1px solid var(--c-line);
  padding:72px 0 0;margin-top:0;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:44px;padding-bottom:52px}
.footer-brand .brand{margin-bottom:18px}
.footer-desc{font-size:14px;color:var(--c-text-3);line-height:1.85;margin-bottom:20px;max-width:300px}
.footer-social{display:flex;gap:12px}
.footer-social a{
  width:38px;height:38px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.04);border:1px solid var(--c-line);color:var(--c-text-2);font-size:15px;
  transition:.25s ease;
}
.footer-social a:hover{color:var(--c-accent);border-color:rgba(36,224,200,.5);transform:translateY(-2px)}
.footer-col h4{font-size:15px;color:var(--c-primary);margin-bottom:20px;letter-spacing:.6px}
.footer-col ul li{margin-bottom:12px}
.footer-col ul li a{font-size:14px;color:var(--c-text-2)}
.footer-col ul li a:hover{color:var(--c-accent)}
.footer-contact li{display:flex;gap:10px;font-size:13.5px;color:var(--c-text-2);line-height:1.7;margin-bottom:14px}
.footer-contact i{color:var(--c-accent);margin-top:5px;flex-shrink:0}
.footer-bottom{
  border-top:1px solid var(--c-line);padding:22px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--c-text-3);
}
.fb-links{display:flex;gap:20px;flex-wrap:wrap}
.fb-links a{font-size:13px;color:var(--c-text-3)}
.fb-links a:hover{color:var(--c-accent)}
@media (max-width:991.98px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
}
@media (max-width:575.98px){
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .site-footer{padding-top:52px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* ============ 移动端导航抽屉 ============ */
@media (max-width:991.98px){
  .nav-inner{height:60px}
  .brand-mark{width:38px;height:38px;font-size:14px;border-radius:11px}
  .brand-line1{font-size:15px}
  .brand-line2{font-size:11px;letter-spacing:1px}
  .nav-toggle{display:flex;align-items:center;justify-content:center}
  .nav-actions .icon-btn{display:none}
  .nav-actions .btn-sm{display:none}
  .main-nav{
    position:fixed;top:0;right:-330px;width:300px;height:100vh;
    flex-direction:column;align-items:stretch;gap:4px;
    padding:88px 20px 28px;margin:0;
    background:rgba(8,16,30,.97);
    backdrop-filter:blur(20px) saturate(140%);
    border-left:1px solid var(--c-line);
    box-shadow:-20px 0 60px rgba(0,0,0,.6);
    transition:right .34s cubic-bezier(.4,0,.2,1);
    overflow-y:auto;z-index:1040;
  }
  .main-nav.is-open{right:0}
  .nav-link{
    height:48px;display:flex;align-items:center;
    padding:0 14px;border-radius:10px;font-size:15px;
  }
  .nav-link:hover{background:rgba(255,255,255,.05)}
  .nav-link.is-active{background:rgba(36,224,200,.09)}
  .nav-link.is-active::after{display:none}
  .nav-cta-mobile{display:flex;margin-top:20px}
}

/* roulang page: category3 */
:root{
  --c-bg:#060B14;
  --c-bg-alt:#0A1424;
  --c-surface:rgba(16,30,50,.55);
  --c-surface-solid:#0F1D31;
  --c-primary:#2F6BFF;
  --c-accent:#24E0C8;
  --c-warn:#FF7A2F;
  --c-text:#E8F0FA;
  --c-text-2:#A9BCD3;
  --c-text-3:#6E8299;
  --c-line:rgba(255,255,255,.08);
  --grad:linear-gradient(135deg,#24E0C8,#2F6BFF);
  --glow:0 0 0 1px rgba(36,224,200,.35),0 10px 30px rgba(36,224,200,.22);
  --r-card:18px;
  --r-img:14px;
  --r-btn:999px;
  --r-input:12px;
  --shadow-card:0 18px 50px rgba(0,0,0,.45);
  --shadow-hover:0 24px 60px rgba(0,0,0,.55);
  --pad-sec:96px;
  --bs-primary:#24E0C8;
  --bs-body-bg:#060B14;
  --bs-body-color:#E8F0FA;
  --bs-border-color:rgba(255,255,255,.08);
  --bs-border-radius:14px;
  --bs-font-sans-serif:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:inherit;text-decoration:none;transition:color .22s ease}
a:hover{color:var(--c-accent)}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.5px;color:var(--c-text)}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:3px;border-radius:6px}

.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media(min-width:1400px){.wrap{max-width:1280px}}

/* ============ 导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  background:rgba(10,20,36,.35);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid var(--c-line);
  box-shadow:0 8px 30px rgba(0,0,0,.25);
  transition:background .3s ease,box-shadow .3s ease,backdrop-filter .3s ease;
}
.site-header.is-stuck{
  background:rgba(6,11,20,.92);
  -webkit-backdrop-filter:blur(20px) saturate(150%);
  backdrop-filter:blur(20px) saturate(150%);
  box-shadow:0 12px 40px rgba(0,0,0,.55);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:20px}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{
  width:42px;height:42px;border-radius:12px;
  display:grid;place-items:center;
  background:var(--grad);
  color:#03121a;font-weight:700;font-size:15px;letter-spacing:.5px;
  box-shadow:0 8px 22px rgba(36,224,200,.28);
}
.brand-txt{display:flex;flex-direction:column;line-height:1.15}
.brand-line1{font-size:16px;font-weight:700;letter-spacing:.5px}
.brand-line2{font-size:12px;color:var(--c-text-2);letter-spacing:.4px}
.main-nav{display:flex;align-items:center;gap:6px}
.nav-link{
  position:relative;padding:8px 14px;font-size:15px;color:var(--c-text-2);
  border-radius:10px;transition:color .22s ease,background .22s ease;
}
.nav-link:hover{color:var(--c-text);background:rgba(255,255,255,.05)}
.nav-link.is-active{color:var(--c-text);font-weight:700}
.nav-link.is-active::after{
  content:"";position:absolute;left:50%;transform:translateX(-50%);
  bottom:0;width:20px;height:2px;border-radius:2px;background:var(--c-accent);
  box-shadow:0 0 10px rgba(36,224,200,.8);
}
.nav-cta-mobile{display:none}
.nav-actions{display:flex;align-items:center;gap:10px}
.icon-btn{
  width:40px;height:40px;border-radius:50%;
  background:rgba(255,255,255,.05);
  border:1px solid var(--c-line);
  color:var(--c-text-2);cursor:pointer;
  display:grid;place-items:center;transition:all .22s ease;
}
.icon-btn:hover{color:var(--c-accent);border-color:rgba(36,224,200,.5);background:rgba(36,224,200,.08)}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  background:rgba(255,255,255,.05);border:1px solid var(--c-line);
  color:var(--c-text);cursor:pointer;
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;letter-spacing:.3px;border:1px solid transparent;
  cursor:pointer;transition:all .28s ease;white-space:nowrap;
}
.btn-accent{background:var(--grad);color:#03121a;box-shadow:var(--glow)}
.btn-accent:hover{color:#03121a;transform:translateY(-2px);box-shadow:0 0 0 1px rgba(36,224,200,.5),0 16px 38px rgba(36,224,200,.32)}
.btn-ghost{background:rgba(255,255,255,.04);border-color:rgba(255,255,255,.16);color:var(--c-text)}
.btn-ghost:hover{border-color:rgba(36,224,200,.55);color:var(--c-accent);background:rgba(36,224,200,.07);transform:translateY(-2px)}
.btn-sm{height:40px;padding:0 20px;font-size:14px}
.btn-block{width:100%}

/* ============ 区块 ============ */
.section{padding:var(--pad-sec) 0}
.section-alt{background:var(--c-bg-alt)}
.sec-head{margin-bottom:44px;max-width:760px}
.sec-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:2px;color:var(--c-accent);
  text-transform:uppercase;margin-bottom:14px;
}
.sec-eyebrow::before{content:"";width:22px;height:2px;background:var(--c-accent);border-radius:2px}
.sec-head h2{font-size:32px;line-height:1.25;margin-bottom:14px}
.sec-head p{color:var(--c-text-2);font-size:16px}
.sec-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap}

/* ============ Hero ============ */
.page-hero{
  position:relative;padding:160px 0 84px;overflow:hidden;
  background-image:linear-gradient(180deg,rgba(6,11,20,.55),rgba(6,11,20,.97)),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
}
.page-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.06;
  background-image:linear-gradient(rgba(255,255,255,.7) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.7) 1px,transparent 1px);
  background-size:24px 24px;
}
.page-hero .wrap{position:relative;z-index:2}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 16px;border-radius:999px;
  background:rgba(36,224,200,.1);
  border:1px solid rgba(36,224,200,.32);
  color:var(--c-accent);font-size:13.5px;letter-spacing:.5px;margin-bottom:22px;
}
.hero-grid h1{font-size:50px;line-height:1.15;margin-bottom:20px}
.hero-sub{color:var(--c-text-2);font-size:17px;max-width:560px;margin-bottom:32px}
.hero-btns{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:44px}
.hero-stats{display:flex;gap:44px;flex-wrap:wrap}
.stat-num{font-family:Inter,system-ui,sans-serif;font-size:28px;font-weight:700;color:var(--c-accent);line-height:1.2}
.stat-label{font-size:13px;color:var(--c-text-3);letter-spacing:.3px}
.hero-card{
  position:relative;border-radius:var(--r-card);
  background:var(--c-surface);
  border:1px solid var(--c-line);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card);overflow:hidden;
}
.hero-card-media{position:relative;aspect-ratio:4/3;overflow:hidden}
.hero-card-media img{width:100%;height:100%;object-fit:cover;border-radius:0}
.hero-card-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(6,11,20,.85))}
.hero-badge{
  position:absolute;top:14px;left:14px;z-index:2;
  padding:6px 14px;border-radius:999px;font-size:12.5px;font-weight:700;
  background:var(--c-warn);color:#2a1000;letter-spacing:.5px;
}
.hero-card-body{padding:22px 22px 24px}
.hero-card-body h3{font-size:20px;margin-bottom:10px}
.hero-card-body p{font-size:14px;color:var(--c-text-2);margin-bottom:16px}
.hero-card-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:16px;border-top:1px solid var(--c-line)}
.hero-card-meta .live{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--c-accent)}
.dot-live{width:8px;height:8px;border-radius:50%;background:var(--c-accent);box-shadow:0 0 0 4px rgba(36,224,200,.18);animation:pulse 1.8s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.4}}

/* ============ 赛程条 ============ */
.fixture-list{display:flex;flex-direction:column;gap:12px}
.fixture{
  display:grid;grid-template-columns:120px 1fr auto;align-items:center;gap:20px;
  padding:20px 24px;border-radius:var(--r-card);
  background:var(--c-surface);border:1px solid var(--c-line);
  transition:all .28s ease;
}
.fixture:hover{border-color:rgba(36,224,200,.45);transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.fixture-time{font-family:Inter,system-ui,sans-serif;font-size:18px;font-weight:700;color:var(--c-text)}
.fixture-time span{display:block;font-size:12.5px;font-weight:400;color:var(--c-text-3);letter-spacing:.3px}
.fixture-main h3{font-size:18px;margin-bottom:4px}
.fixture-main p{font-size:13.5px;color:var(--c-text-2)}
.tag{
  display:inline-flex;align-items:center;padding:4px 12px;border-radius:999px;
  font-size:12.5px;letter-spacing:.3px;
  background:rgba(47,107,255,.14);border:1px solid rgba(47,107,255,.36);color:#9CB8FF;
}
.tag-accent{background:rgba(36,224,200,.12);border-color:rgba(36,224,200,.36);color:var(--c-accent)}
.tag-warn{background:rgba(255,122,47,.14);border-color:rgba(255,122,47,.4);color:#FFB184}

/* ============ 图文大卡 + 粘性侧栏 ============ */
.split{display:grid;grid-template-columns:1fr 330px;gap:40px;align-items:start}
.big-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:26px}
.big-card{
  border-radius:var(--r-card);overflow:hidden;
  background:var(--c-surface);border:1px solid var(--c-line);
  box-shadow:var(--shadow-card);transition:all .28s ease;
  display:flex;flex-direction:column;
}
.big-card:hover{transform:translateY(-4px);border-color:rgba(36,224,200,.45);box-shadow:var(--shadow-hover)}
.big-card-media{position:relative;aspect-ratio:16/9;overflow:hidden}
.big-card-media img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .5s ease}
.big-card:hover .big-card-media img{transform:scale(1.05)}
.big-card-media .tag{position:absolute;top:14px;left:14px;z-index:2}
.big-card-body{padding:22px;display:flex;flex-direction:column;flex:1}
.big-card-body h3{font-size:20px;line-height:1.4;margin-bottom:12px}
.big-card-body .desc{font-size:14.5px;color:var(--c-text-2);margin-bottom:18px}
.big-card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--c-text-3);padding-top:16px;border-top:1px solid var(--c-line)}
.big-card-foot a{color:var(--c-accent);font-weight:700;font-size:13.5px}

.side-sticky{position:sticky;top:100px;display:flex;flex-direction:column;gap:22px}
.side-card{
  border-radius:var(--r-card);padding:24px;
  background:var(--c-surface);border:1px solid var(--c-line);
  box-shadow:var(--shadow-card);
}
.side-card h3{font-size:17px;margin-bottom:16px;padding-left:12px;border-left:3px solid var(--c-accent);line-height:1.2}
.side-list li+li{margin-top:2px}
.side-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 12px;border-radius:10px;font-size:14.5px;color:var(--c-text-2);
  transition:all .22s ease;
}
.side-list a:hover{background:rgba(36,224,200,.08);color:var(--c-accent);padding-left:16px}
.side-list i{font-size:12px;opacity:.7}
.side-cta{
  border-radius:var(--r-card);padding:26px 24px;text-align:center;
  background:linear-gradient(160deg,rgba(36,224,200,.14),rgba(47,107,255,.14));
  border:1px solid rgba(36,224,200,.28);
}
.side-cta h3{font-size:18px;margin-bottom:10px}
.side-cta p{font-size:14px;color:var(--c-text-2);margin-bottom:20px}

/* ============ 资讯条状列表 ============ */
.news-list{border-radius:var(--r-card);overflow:hidden;background:var(--c-surface);border:1px solid var(--c-line);box-shadow:var(--shadow-card)}
.news-item{display:flex;gap:20px;padding:22px 24px;border-bottom:1px solid var(--c-line);transition:background .25s ease}
.news-item:last-child{border-bottom:none}
.news-item:hover{background:rgba(36,224,200,.05)}
.news-thumb{width:160px;height:110px;flex-shrink:0;border-radius:var(--r-img);overflow:hidden}
.news-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .5s ease}
.news-item:hover .news-thumb img{transform:scale(1.06)}
.news-body{display:flex;flex-direction:column;min-width:0}
.news-body h3{font-size:18px;line-height:1.45;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-body p{font-size:14px;color:var(--c-text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:10px}
.news-meta{margin-top:auto;display:flex;align-items:center;gap:14px;font-size:13px;color:var(--c-text-3);flex-wrap:wrap}
.news-meta .more{color:var(--c-accent);font-weight:700}

/* ============ 保障条 ============ */
.guard-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.guard{
  padding:26px 22px;border-radius:var(--r-card);
  background:var(--c-surface);border:1px solid var(--c-line);
  transition:all .28s ease;
}
.guard:hover{transform:translateY(-4px);border-color:rgba(36,224,200,.4);box-shadow:var(--shadow-hover)}
.guard i{font-size:26px;color:var(--c-accent);margin-bottom:16px;display:block}
.guard h3{font-size:16px;margin-bottom:8px}
.guard p{font-size:13.5px;color:var(--c-text-2);line-height:1.7}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px}
.faq-item{
  border-radius:var(--r-card);overflow:hidden;
  background:var(--c-surface);border:1px solid var(--c-line);
  transition:border-color .25s ease;
}
.faq-item.is-open{border-color:rgba(36,224,200,.4)}
.faq-q{
  width:100%;display:flex;align-items:center;gap:14px;text-align:left;
  padding:20px 22px;background:transparent;border:none;color:var(--c-text);
  font-size:17px;font-weight:700;cursor:pointer;letter-spacing:.3px;
}
.faq-q .fq-icon{
  width:30px;height:30px;flex-shrink:0;border-radius:50%;
  display:grid;place-items:center;font-size:12px;
  background:rgba(36,224,200,.12);border:1px solid rgba(36,224,200,.32);color:var(--c-accent);
  transition:transform .3s ease;
}
.faq-item.is-open .faq-q .fq-icon{transform:rotate(45deg)}
.faq-a{padding:0 22px 22px 66px;font-size:15px;color:var(--c-text-2);line-height:1.8}
.faq-item.is-open .faq-a{border-left:2px solid var(--c-accent);margin-left:36px;padding-left:28px}

/* ============ CTA ============ */
.cta-band{
  border-radius:22px;padding:52px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  background:linear-gradient(120deg,rgba(36,224,200,.16),rgba(47,107,255,.18)),var(--c-surface-solid);
  border:1px solid rgba(36,224,200,.28);
  box-shadow:var(--shadow-card);position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-80px;top:-80px;width:260px;height:260px;border-radius:50%;
  background:radial-gradient(circle,rgba(36,224,200,.24),transparent 70%);
}
.cta-band h2{font-size:28px;margin-bottom:12px;position:relative}
.cta-band p{color:var(--c-text-2);font-size:15px;position:relative;max-width:560px}

/* ============ 页脚 ============ */
.site-footer{background:#050A12;border-top:1px solid var(--c-line);padding:72px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:40px;padding-bottom:48px}
.footer-brand .brand{margin-bottom:18px}
.footer-desc{font-size:14px;color:var(--c-text-2);margin-bottom:20px;max-width:300px}
.footer-social{display:flex;gap:12px}
.footer-social a{
  width:38px;height:38px;border-radius:50%;display:grid;place-items:center;
  background:rgba(255,255,255,.05);border:1px solid var(--c-line);color:var(--c-text-2);
  transition:all .25s ease;
}
.footer-social a:hover{color:var(--c-accent);border-color:rgba(36,224,200,.5);transform:translateY(-2px)}
.footer-col h4{font-size:15px;color:var(--c-primary);margin-bottom:18px}
.footer-col ul li{margin-bottom:11px}
.footer-col a{font-size:14px;color:var(--c-text-2)}
.footer-col a:hover{color:var(--c-accent)}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:var(--c-text-2);margin-bottom:12px;align-items:flex-start}
.footer-contact i{color:var(--c-accent);margin-top:5px}
.footer-bottom{
  border-top:1px solid var(--c-line);padding:22px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--c-text-3);
}
.fb-links{display:flex;gap:18px;flex-wrap:wrap}
.fb-links a{color:var(--c-text-3)}
.fb-links a:hover{color:var(--c-accent)}

/* ============ 响应式 ============ */
@media(max-width:1199px){
  .hero-grid{gap:40px}
  .hero-grid h1{font-size:44px}
  .split{grid-template-columns:1fr 300px;gap:30px}
}
@media(max-width:991px){
  :root{--pad-sec:72px}
  .main-nav{
    position:fixed;top:0;right:0;height:100vh;width:min(320px,86vw);
    flex-direction:column;align-items:stretch;gap:0;
    padding:88px 22px 28px;
    background:rgba(8,16,28,.96);
    -webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);
    border-left:1px solid var(--c-line);
    transform:translateX(105%);transition:transform .32s ease;z-index:1100;
    box-shadow:-20px 0 60px rgba(0,0,0,.6);
  }
  .main-nav.is-open{transform:translateX(0)}
  .nav-link{display:flex;align-items:center;height:48px;padding:0 12px;font-size:16px;border-radius:12px}
  .nav-link.is-active::after{display:none}
  .nav-link.is-active{background:rgba(36,224,200,.1);color:var(--c-accent)}
  .nav-cta-mobile{display:inline-flex;margin-top:18px}
  .nav-toggle{display:grid;place-items:center}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .page-hero{padding:132px 0 68px}
  .hero-grid h1{font-size:38px}
  .hero-card{max-width:520px}
  .split{grid-template-columns:1fr}
  .side-sticky{position:static}
  .guard-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
}
@media(max-width:767px){
  :root{--pad-sec:56px}
  .nav-inner{height:60px}
  .brand-line1{font-size:15px}
  .brand-line2{font-size:11px}
  .page-hero{padding:112px 0 56px}
  .hero-grid h1{font-size:30px}
  .hero-sub{font-size:16px}
  .hero-btns .btn{width:100%}
  .hero-stats{gap:26px}
  .stat-num{font-size:24px}
  .sec-head h2{font-size:25px}
  .big-cards{grid-template-columns:1fr}
  .fixture{grid-template-columns:1fr;gap:12px;padding:18px}
  .fixture .tag{align-self:flex-start}
  .news-item{flex-direction:column;gap:14px;padding:20px}
  .news-thumb{width:100%;height:180px}
  .guard-grid{grid-template-columns:repeat(2,1fr);gap:14px}
  .cta-band{padding:34px 24px}
  .cta-band h2{font-size:23px}
  .cta-band .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .faq-a{padding-left:22px}
  .faq-item.is-open .faq-a{margin-left:0;padding-left:22px}
}
@media(max-width:520px){
  .wrap{padding:0 16px}
  .hero-grid h1{font-size:28px}
  .hero-stats{gap:20px}
  .stat-num{font-size:22px}
  .guard-grid{grid-template-columns:1fr}
  .brand-mark{width:38px;height:38px;font-size:14px}
}

/* roulang page: category2 */
:root{
  --c-bg:#060B14;
  --c-bg-alt:#0A1424;
  --c-surface:rgba(16,30,50,.55);
  --c-surface-solid:#0F1D31;
  --c-primary:#2F6BFF;
  --c-accent:#24E0C8;
  --c-warn:#FF7A2F;
  --c-text:#E8F0FA;
  --c-text-2:#A9BCD3;
  --c-text-3:#6E8299;
  --c-line:rgba(255,255,255,.08);
  --grad-main:linear-gradient(135deg,#24E0C8,#2F6BFF);
  --grad-warn:linear-gradient(135deg,#FF7A2F,#FFA65C);
  --glow:0 0 0 1px rgba(36,224,200,.35),0 10px 30px rgba(36,224,200,.22);
  --sh-card:0 18px 50px rgba(0,0,0,.45);
  --sh-hover:0 24px 60px rgba(0,0,0,.55);
  --r-card:18px;
  --r-img:14px;
  --r-sm:12px;
  --r-pill:999px;
  --font-sans:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-num:"Inter",system-ui,sans-serif;
  --bs-body-bg:#060B14;
  --bs-body-color:#E8F0FA;
  --bs-border-color:rgba(255,255,255,.08);
  --bs-border-radius:18px;
  --bs-font-sans-serif:var(--font-sans);
  --bs-primary:#2F6BFF;
  --bs-primary-rgb:47,107,255;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.2px;
  overflow-x:hidden;
  background-image:
    radial-gradient(circle at 12% 0%,rgba(47,107,255,.16),transparent 46%),
    radial-gradient(circle at 88% 8%,rgba(36,224,200,.12),transparent 42%);
  background-repeat:no-repeat;
}
img{max-width:100%;display:block;}
a{color:var(--c-accent);text-decoration:none;transition:color .25s ease;}
a:hover{color:#7CF2E1;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.5px;line-height:1.25;color:var(--c-text);}
p{margin:0;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:6px;}

.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:1400px){.wrap{max-width:1280px;}}
@media (max-width:576px){.wrap{padding:0 16px;}}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:1040;
  background:rgba(10,20,36,.35);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid var(--c-line);
  box-shadow:0 8px 30px rgba(0,0,0,.25);
  transition:background .3s ease,box-shadow .3s ease,backdrop-filter .3s ease;
}
.site-header.is-stuck{
  background:rgba(6,11,20,.92);
  -webkit-backdrop-filter:blur(20px) saturate(150%);
  backdrop-filter:blur(20px) saturate(150%);
  box-shadow:0 14px 40px rgba(0,0,0,.5);
}
.nav-inner{display:flex;align-items:center;gap:24px;height:72px;}
.brand{display:flex;align-items:center;gap:12px;color:var(--c-text);flex-shrink:0;}
.brand:hover{color:var(--c-text);}
.brand-mark{
  width:40px;height:40px;border-radius:12px;
  background:var(--grad-main);
  color:#04121A;font-weight:800;font-size:16px;
  display:grid;place-items:center;
  box-shadow:0 0 0 1px rgba(36,224,200,.35),0 8px 24px rgba(36,224,200,.25);
  letter-spacing:0;
}
.brand-txt{display:flex;flex-direction:column;line-height:1.2;}
.brand-line1{font-size:17px;font-weight:700;letter-spacing:.6px;}
.brand-line2{font-size:12px;color:var(--c-text-2);letter-spacing:1.4px;}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:auto;}
.nav-link{
  position:relative;
  padding:10px 14px;
  font-size:15px;
  color:var(--c-text-2);
  border-radius:var(--r-sm);
  transition:color .25s ease,background .25s ease;
}
.nav-link::after{
  content:"";position:absolute;left:14px;bottom:4px;width:0;height:2px;
  background:var(--c-accent);border-radius:2px;transition:width .28s ease;
}
.nav-link:hover{color:var(--c-text);background:rgba(255,255,255,.04);}
.nav-link:hover::after{width:20px;}
.nav-link.is-active{color:var(--c-text);}
.nav-link.is-active::after{width:20px;box-shadow:0 0 12px rgba(36,224,200,.7);}
.nav-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.icon-btn{
  width:40px;height:40px;border-radius:50%;
  border:1px solid var(--c-line);
  background:rgba(255,255,255,.04);
  color:var(--c-text-2);
  display:grid;place-items:center;
  cursor:pointer;transition:all .25s ease;
}
.icon-btn:hover{color:var(--c-accent);border-color:rgba(36,224,200,.5);box-shadow:0 0 18px rgba(36,224,200,.22);}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--c-line);background:rgba(255,255,255,.04);
  color:var(--c-text);cursor:pointer;
}
.nav-cta-mobile{display:none;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;font-size:15px;font-weight:600;
  border-radius:var(--r-pill);border:1px solid transparent;
  cursor:pointer;text-decoration:none;
  transition:transform .28s ease,box-shadow .28s ease,background .28s ease,color .28s ease,border-color .28s ease;
  line-height:1.2;
}
.btn-accent{background:var(--grad-main);color:#04121A;box-shadow:var(--glow);}
.btn-accent:hover{color:#04121A;transform:translateY(-2px);box-shadow:0 0 0 1px rgba(36,224,200,.5),0 16px 36px rgba(36,224,200,.32);}
.btn-ghost{
  background:rgba(255,255,255,.04);color:var(--c-text);
  border-color:rgba(255,255,255,.16);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
}
.btn-ghost:hover{color:var(--c-accent);border-color:rgba(36,224,200,.55);transform:translateY(-2px);}
.btn-sm{padding:10px 20px;font-size:14px;}
.btn-block{width:100%;}
.btn:active{transform:translateY(0);}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;
  padding:150px 0 96px;
  background-image:
    linear-gradient(180deg,rgba(6,11,20,.62),rgba(6,11,20,.96)),
    url("/assets/images/backpic/back-1.png");
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.5) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.5) 1px,transparent 1px);
  background-size:24px 24px;
  opacity:.06;
}
.hero-grid{
  position:relative;z-index:2;
  display:grid;grid-template-columns:7fr 5fr;gap:52px;align-items:center;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:1.2px;color:var(--c-accent);
  padding:7px 16px;border-radius:var(--r-pill);
  background:rgba(36,224,200,.08);
  border:1px solid rgba(36,224,200,.28);
  margin-bottom:22px;
}
.hero-copy h1{font-size:48px;line-height:1.15;margin-bottom:18px;}
.hero-sub{font-size:19px;color:var(--c-text);margin-bottom:14px;font-weight:600;}
.hero-lead{font-size:16px;color:var(--c-text-2);max-width:560px;margin-bottom:30px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:38px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:40px;}
.hero-stats li{display:flex;flex-direction:column;gap:2px;}
.hero-stats .num{font-family:var(--font-num);font-size:28px;font-weight:700;color:var(--c-accent);line-height:1.2;}
.hero-stats .lab{font-size:13px;color:var(--c-text-3);}

.hero-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-card);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  padding:18px;
  transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
}
.hero-card:hover{transform:translateY(-4px);border-color:rgba(36,224,200,.45);box-shadow:var(--sh-hover);}
.card-media{
  position:relative;aspect-ratio:4/3;overflow:hidden;border-radius:var(--r-img);
  background:var(--c-surface-solid);
}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.hero-card:hover .card-media img{transform:scale(1.04);}
.badge-warn{
  position:absolute;top:14px;left:14px;
  background:var(--grad-warn);color:#25100A;
  font-size:12.5px;font-weight:700;padding:6px 14px;border-radius:var(--r-pill);
  box-shadow:0 8px 20px rgba(255,122,47,.3);
  letter-spacing:.6px;
}
.hero-card-body{padding:20px 6px 6px;}
.hero-card-body h3{font-size:21px;margin-bottom:10px;}
.meta-line{font-size:14px;color:var(--c-text-2);display:flex;align-items:center;gap:8px;}
.meta-line::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--c-accent);flex-shrink:0;}
.card-foot{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  margin-top:20px;padding-top:16px;border-top:1px solid var(--c-line);
}
.state{font-size:13px;color:var(--c-text-3);}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0;}
.section-alt{background:linear-gradient(180deg,rgba(10,20,36,.75),rgba(6,11,20,.9));border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);}
.sec-head{max-width:720px;margin-bottom:52px;}
.sec-head h2{font-size:32px;margin-bottom:14px;}
.sec-head p{font-size:16px;color:var(--c-text-2);}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.sec-kicker{
  display:inline-block;font-size:13px;letter-spacing:1.6px;
  color:var(--c-warn);margin-bottom:12px;font-weight:600;
}

/* ---------- 面包屑 ---------- */
.breadcrumb-bar{padding:104px 0 0;}
.breadcrumb-bar ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-text-3);}
.breadcrumb-bar li{display:flex;align-items:center;gap:8px;}
.breadcrumb-bar li+li::before{content:"/";color:var(--c-text-3);}
.breadcrumb-bar a{color:var(--c-text-2);}
.breadcrumb-bar a:hover{color:var(--c-accent);}

/* ---------- 功能卡 ---------- */
.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
.feature-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:24px 22px;
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  box-shadow:var(--sh-card);
  transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
  position:relative;overflow:hidden;
}
.feature-card::before{
  content:"";position:absolute;top:0;right:0;width:56px;height:56px;
  background:linear-gradient(135deg,rgba(36,224,200,.18),transparent 70%);
  clip-path:polygon(100% 0,0 0,100% 100%);
}
.feature-card:hover{transform:translateY(-4px);border-color:rgba(36,224,200,.42);box-shadow:var(--sh-hover);}
.feature-icon{
  width:44px;height:44px;border-radius:12px;
  display:grid;place-items:center;margin-bottom:16px;
  color:var(--c-accent);font-size:19px;
  border:1.5px solid rgba(36,224,200,.45);
  background:rgba(36,224,200,.07);
}
.feature-card h3{font-size:19px;margin-bottom:10px;}
.feature-card p{font-size:14.5px;color:var(--c-text-2);}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.tag{
  font-size:12.5px;color:var(--c-text-2);
  padding:4px 12px;border-radius:var(--r-pill);
  background:rgba(47,107,255,.12);
  border:1px solid rgba(47,107,255,.32);
}

/* ---------- 步骤 + 说明卡 ---------- */
.step-layout{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:start;}
.step-list{position:relative;padding-left:4px;}
.step-item{position:relative;padding:0 0 30px 66px;}
.step-item:last-child{padding-bottom:0;}
.step-item::before{
  content:"";position:absolute;left:19px;top:46px;bottom:4px;width:1px;
  background:linear-gradient(180deg,rgba(36,224,200,.5),rgba(36,224,200,.06));
}
.step-item:last-child::before{display:none;}
.step-no{
  position:absolute;left:0;top:0;
  width:40px;height:40px;border-radius:50%;
  display:grid;place-items:center;
  font-family:var(--font-num);font-size:14px;font-weight:700;color:var(--c-accent);
  border:1.5px solid rgba(36,224,200,.5);
  background:rgba(36,224,200,.08);
  box-shadow:0 0 20px rgba(36,224,200,.18);
}
.step-body h3{font-size:20px;margin-bottom:8px;}
.step-body p{font-size:15px;color:var(--c-text-2);}

.info-panel{
  position:sticky;top:104px;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:26px;
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  box-shadow:var(--sh-card);
}
.info-panel h3{font-size:20px;margin-bottom:8px;}
.info-panel > p{font-size:14.5px;color:var(--c-text-2);margin-bottom:18px;}
.param-list{border-top:1px solid var(--c-line);}
.param-list li{
  display:flex;justify-content:space-between;gap:16px;
  padding:13px 0;border-bottom:1px solid var(--c-line);font-size:14px;
}
.param-list .k{color:var(--c-text-3);}
.param-list .v{color:var(--c-text);font-family:var(--font-num);font-weight:600;}
.info-panel .btn{margin-top:22px;}

/* ---------- 图文区 ---------- */
.media-split{display:grid;grid-template-columns:6fr 6fr;gap:48px;align-items:center;}
.media-frame{
  border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--c-line);
  box-shadow:var(--sh-card);
  aspect-ratio:16/11;background:var(--c-surface-solid);
}
.media-frame img{width:100%;height:100%;object-fit:cover;}
.media-copy h2{font-size:30px;margin-bottom:16px;}
.media-copy > p{font-size:16px;color:var(--c-text-2);margin-bottom:24px;}
.check-list li{
  display:flex;gap:14px;padding:14px 0;border-top:1px solid var(--c-line);
  font-size:15px;color:var(--c-text-2);
}
.check-list li i{color:var(--c-accent);font-size:16px;margin-top:5px;flex-shrink:0;}
.check-list li strong{display:block;color:var(--c-text);font-size:16px;margin-bottom:4px;font-weight:600;}

/* ---------- 保障条 ---------- */
.assure-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.assure-item{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:24px 22px;
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.assure-item:hover{transform:translateY(-4px);border-color:rgba(36,224,200,.4);box-shadow:var(--sh-hover);}
.assure-item i{font-size:26px;color:var(--c-primary);margin-bottom:14px;display:block;}
.assure-item h3{font-size:16px;margin-bottom:8px;}
.assure-item p{font-size:13.5px;color:var(--c-text-2);}

/* ---------- FAQ ---------- */
.faq-acc .accordion-item{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:14px;
  overflow:hidden;
  margin-bottom:12px;
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
}
.faq-acc .accordion-button{
  background:transparent;
  color:var(--c-text);
  font-size:17px;font-weight:600;
  padding:18px 22px 18px 60px;
  box-shadow:none;
  border:0;
  position:relative;
}
.faq-acc .accordion-button::before{
  content:"";position:absolute;left:22px;top:50%;transform:translateY(-50%);
  width:22px;height:22px;border-radius:50%;
  border:1.5px solid rgba(36,224,200,.55);
  background:rgba(36,224,200,.08);
}
.faq-acc .accordion-button::after{display:none;}
.faq-acc .accordion-button:not(.collapsed){
  color:var(--c-accent);
  background:rgba(36,224,200,.05);
  box-shadow:none;
}
.faq-acc .accordion-button:not(.collapsed)::before{
  background:var(--c-accent);
  border-color:var(--c-accent);
  box-shadow:0 0 14px rgba(36,224,200,.55);
}
.faq-acc .accordion-button:focus{box-shadow:0 0 0 2px rgba(36,224,200,.35);}
.faq-acc .accordion-body{
  padding:0 22px 20px 60px;
  font-size:15px;line-height:1.8;color:var(--c-text-2);
  border-left:2px solid var(--c-accent);
  margin-left:22px;
  padding-left:20px;
}

/* ---------- CTA 条 ---------- */
.cta-band{padding:0 0 96px;}
.cta-inner{
  display:flex;align-items:center;justify-content:space-between;gap:30px;
  flex-wrap:wrap;
  padding:36px 40px;
  border-radius:var(--r-card);
  background:linear-gradient(120deg,rgba(36,224,200,.12),rgba(47,107,255,.14));
  border:1px solid rgba(36,224,200,.28);
  box-shadow:0 0 0 1px rgba(36,224,200,.12),0 20px 50px rgba(0,0,0,.45);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
}
.cta-inner h2{font-size:26px;margin-bottom:8px;}
.cta-inner p{font-size:15px;color:var(--c-text-2);}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:#050A12;
  border-top:1px solid var(--c-line);
  padding:72px 0 0;
  margin-top:0;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:40px;padding-bottom:48px;}
.footer-brand .brand{margin-bottom:18px;}
.footer-desc{font-size:14px;color:var(--c-text-2);max-width:320px;margin-bottom:20px;}
.footer-social{display:flex;gap:12px;}
.footer-social a{
  width:38px;height:38px;border-radius:50%;
  display:grid;place-items:center;
  border:1px solid var(--c-line);
  background:rgba(255,255,255,.03);
  color:var(--c-text-2);font-size:14px;
  transition:all .25s ease;
}
.footer-social a:hover{color:var(--c-accent);border-color:rgba(36,224,200,.5);transform:translateY(-3px);}
.footer-col h4{font-size:15px;color:var(--c-primary);margin-bottom:18px;letter-spacing:.8px;}
.footer-col ul li{margin-bottom:11px;}
.footer-col ul a{font-size:14px;color:var(--c-text-2);}
.footer-col ul a:hover{color:var(--c-accent);}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:var(--c-text-2);margin-bottom:12px;line-height:1.7;}
.footer-contact i{color:var(--c-accent);margin-top:5px;flex-shrink:0;}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  padding:20px 0 26px;border-top:1px solid var(--c-line);
  font-size:13px;color:var(--c-text-3);
}
.fb-links{display:flex;flex-wrap:wrap;gap:18px;}
.fb-links a{color:var(--c-text-3);font-size:13px;}
.fb-links a:hover{color:var(--c-accent);}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  .hero-copy h1{font-size:42px;}
  .feature-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:992px){
  .section{padding:72px 0;}
  .nav-toggle{display:grid;place-items:center;}
  .main-nav{
    position:fixed;top:0;right:0;height:100vh;
    width:min(320px,86vw);
    background:rgba(8,16,30,.97);
    -webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);
    border-left:1px solid var(--c-line);
    flex-direction:column;align-items:stretch;gap:4px;
    padding:88px 20px 28px;
    transform:translateX(104%);
    transition:transform .32s ease;
    z-index:1050;
    overflow-y:auto;
  }
  .main-nav.is-open{transform:translateX(0);}
  .nav-link{height:48px;display:flex;align-items:center;font-size:16px;padding:0 10px;}
  .nav-link::after{bottom:6px;left:10px;}
  .nav-cta-mobile{display:flex;margin-top:18px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-card{order:2;}
  .page-hero{padding:126px 0 72px;}
  .step-layout{grid-template-columns:1fr;gap:32px;}
  .info-panel{position:static;}
  .media-split{grid-template-columns:1fr;gap:30px;}
  .assure-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .hero-card:hover,.feature-card:hover,.assure-item:hover{transform:none;box-shadow:var(--sh-card);}
}
@media (max-width:768px){
  .section{padding:56px 0;}
  .nav-inner{height:60px;gap:12px;}
  .brand-line1{font-size:15px;}
  .brand-line2{font-size:11px;letter-spacing:1px;}
  .brand-mark{width:34px;height:34px;font-size:14px;border-radius:10px;}
  .icon-btn{display:none;}
  .hero-copy h1{font-size:30px;}
  .hero-sub{font-size:17px;}
  .hero-actions .btn{width:100%;}
  .hero-stats{gap:26px;}
  .hero-stats .num{font-size:24px;}
  .sec-head h2{font-size:26px;}
  .feature-grid{grid-template-columns:1fr;}
  .media-copy h2{font-size:24px;}
  .cta-band{padding:0 0 56px;}
  .cta-inner{padding:28px 22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .step-item{padding-left:56px;}
  .step-no{width:36px;height:36px;font-size:13px;}
  .step-item::before{left:17px;top:42px;}
  .faq-acc .accordion-button{font-size:16px;padding:16px 18px 16px 56px;}
  .faq-acc .accordion-button::before{left:18px;}
  .faq-acc .accordion-body{margin-left:18px;padding-left:18px;padding-right:18px;}
  .breadcrumb-bar{padding-top:86px;}
}
@media (max-width:576px){
  .assure-grid{grid-template-columns:1fr 1fr;gap:14px;}
  .assure-item{padding:18px 16px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .hero-card-body{padding:16px 2px 4px;}
  .card-foot{flex-direction:column;align-items:stretch;}
  .card-foot .btn{width:100%;}
}

/* roulang page: category4 */
/* ============ 设计变量 ============ */
:root{
  --c-bg:#060B14;
  --c-bg-alt:#0A1424;
  --c-surface:rgba(16,30,50,.55);
  --c-surface-solid:#0F1D31;
  --c-primary:#2F6BFF;
  --c-accent:#24E0C8;
  --c-warn:#FF7A2F;
  --c-text:#E8F0FA;
  --c-text-2:#A9BCD3;
  --c-text-3:#6E8299;
  --c-line:rgba(255,255,255,.08);
  --grad-main:linear-gradient(135deg,#24E0C8,#2F6BFF);
  --glow:0 0 0 1px rgba(36,224,200,.35), 0 10px 30px rgba(36,224,200,.22);
  --sh-card:0 18px 50px rgba(0,0,0,.45);
  --sh-card-h:0 24px 60px rgba(0,0,0,.55);
  --r-card:18px;
  --r-img:14px;
  --r-btn:999px;
  --r-input:12px;
  --font-cn:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-num:Inter,system-ui,sans-serif;

  --bs-body-bg:#060B14;
  --bs-body-color:#E8F0FA;
  --bs-body-font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --bs-primary:#2F6BFF;
  --bs-link-color:#A9BCD3;
  --bs-link-hover-color:#24E0C8;
  --bs-border-color:rgba(255,255,255,.08);
  --bs-border-radius:18px;
  --bs-font-sans-serif:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
}

/* ============ 基础重置 ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  min-height:100%;
  background-color:var(--c-bg);
  background-image:
    radial-gradient(900px 520px at 10% -12%, rgba(36,224,200,.10), transparent 62%),
    radial-gradient(820px 480px at 94% 2%, rgba(47,107,255,.16), transparent 64%),
    linear-gradient(180deg,#060B14 0%,#081020 46%,#060B14 100%);
  background-attachment:fixed;
  color:var(--c-text);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--c-text-2);text-decoration:none;transition:color .22s ease}
a:hover{color:var(--c-accent)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.5px;line-height:1.25;color:var(--c-text)}
p{margin:0}
button{font-family:inherit}
::selection{background:rgba(36,224,200,.28);color:#fff}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:3px;border-radius:6px}
section[id]{scroll-margin-top:96px}

/* ============ 容器 ============ */
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:1400px){.wrap{max-width:1280px}}
@media (max-width:576px){.wrap{padding:0 16px}}

/* ============ 通用按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);border:1px solid transparent;
  font-weight:600;font-size:15px;line-height:1.2;padding:13px 26px;
  text-decoration:none;cursor:pointer;white-space:nowrap;
  transition:transform .24s ease, box-shadow .24s ease, background .24s ease, border-color .24s ease, color .24s ease;
}
.btn-sm{padding:9px 18px;font-size:14px}
.btn-block{width:100%}
.btn-accent{background:var(--grad-main);color:#04121A;box-shadow:var(--glow)}
.btn-accent:hover,.btn-accent:focus-visible{color:#04121A;transform:translateY(-2px);box-shadow:0 0 0 1px rgba(36,224,200,.5),0 16px 36px rgba(36,224,200,.3)}
.btn-accent:active{transform:translateY(0)}
.btn-ghost{background:rgba(255,255,255,.04);border-color:var(--c-line);color:var(--c-text)}
.btn-ghost:hover,.btn-ghost:focus-visible{border-color:rgba(36,224,200,.5);background:rgba(36,224,200,.07);color:var(--c-accent);transform:translateY(-2px)}

/* ============ 导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1030;
  background:rgba(10,20,36,.35);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid var(--c-line);
  box-shadow:0 8px 30px rgba(0,0,0,.25);
  transition:background .3s ease, box-shadow .3s ease;
}
.site-header.is-stuck{
  background:rgba(6,11,20,.92);
  -webkit-backdrop-filter:blur(20px) saturate(150%);
  backdrop-filter:blur(20px) saturate(150%);
  box-shadow:0 12px 40px rgba(0,0,0,.45);
}
.nav-inner{display:flex;align-items:center;gap:26px;height:72px}
.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto}
.brand-mark{
  width:40px;height:40px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:var(--grad-main);color:#04121A;font-weight:700;font-size:15px;letter-spacing:0;
  box-shadow:0 8px 22px rgba(36,224,200,.28);flex:0 0 auto;
}
.brand-txt{display:flex;flex-direction:column;line-height:1.2}
.brand-line1{font-size:16px;font-weight:700;color:var(--c-text);letter-spacing:.4px}
.brand-line2{font-size:12px;color:var(--c-text-3);letter-spacing:.6px}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-link{
  position:relative;padding:9px 12px;font-size:15px;color:var(--c-text-2);border-radius:10px;
  transition:color .22s ease, background .22s ease;
}
.nav-link:hover{color:var(--c-text);background:rgba(255,255,255,.04)}
.nav-link.is-active{color:var(--c-text);font-weight:600}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;width:20px;
  background:var(--c-accent);border-radius:2px;box-shadow:0 0 10px rgba(36,224,200,.7);
}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.icon-btn{
  width:40px;height:40px;border-radius:50%;border:1px solid var(--c-line);
  background:rgba(255,255,255,.04);color:var(--c-text-2);cursor:pointer;
  display:inline-flex;align-items:center;justify-content:center;transition:all .24s ease;
}
.icon-btn:hover{color:var(--c-accent);border-color:rgba(36,224,200,.5);background:rgba(36,224,200,.08)}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:12px;border:1px solid var(--c-line);
  background:rgba(255,255,255,.04);color:var(--c-text);cursor:pointer;
  align-items:center;justify-content:center;font-size:16px;
}
.nav-cta-mobile{display:none}

/* ============ Hero ============ */
.hero{position:relative;overflow:hidden;padding:158px 0 92px;isolation:isolate}
.hero-bg{
  position:absolute;inset:0;z-index:0;
  background-size:cover;background-position:center;
  opacity:.40;filter:saturate(.85);
}
.hero::after{
  content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(180deg,rgba(6,11,20,.45) 0%,rgba(6,11,20,.88) 62%,rgba(6,11,20,.98) 100%);
}
.hero-grid{
  position:absolute;inset:0;z-index:2;pointer-events:none;opacity:.06;
  background-image:linear-gradient(rgba(255,255,255,.5) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.5) 1px,transparent 1px);
  background-size:24px 24px;
}
.hero-inner{position:relative;z-index:3;display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 15px;border-radius:999px;font-size:13px;letter-spacing:.6px;
  color:var(--c-accent);background:rgba(36,224,200,.08);
  border:1px solid rgba(36,224,200,.28);
}
.hero h1{font-size:48px;line-height:1.15;margin:22px 0 18px}
.hero-sub{font-size:17px;color:var(--c-text-2);max-width:560px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin:30px 0 34px}
.hero-stats{display:flex;flex-wrap:wrap;gap:34px}
.hero-stats li{display:flex;flex-direction:column;gap:2px}
.hero-stats strong{font-family:var(--font-num);font-size:28px;font-weight:700;color:var(--c-accent);line-height:1.2}
.hero-stats span{font-size:13px;color:var(--c-text-3);letter-spacing:.3px}

.hero-card{
  position:relative;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);box-shadow:var(--sh-card);overflow:hidden;
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
}
.hc-media{position:relative;aspect-ratio:4/3;overflow:hidden}
.hc-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.hero-card:hover .hc-media img{transform:scale(1.04)}
.hc-badge{
  position:absolute;top:14px;left:14px;padding:6px 13px;border-radius:999px;
  background:var(--c-warn);color:#1A0A00;font-size:12px;font-weight:700;letter-spacing:.6px;
  box-shadow:0 8px 22px rgba(255,122,47,.35);
}
.hc-body{padding:22px 22px 20px}
.hc-body h3{font-size:20px;margin-bottom:10px}
.hc-body p{font-size:14px;color:var(--c-text-2);line-height:1.75}
.hc-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}
.hc-meta span{
  font-size:12.5px;color:var(--c-text-2);padding:5px 11px;border-radius:999px;
  background:rgba(255,255,255,.04);border:1px solid var(--c-line);
}
.hc-foot{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:16px 22px;border-top:1px solid var(--c-line);
  background:rgba(6,11,20,.45);
}
.hc-foot .state{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--c-accent)}
.hc-foot .dot{width:8px;height:8px;border-radius:50%;background:var(--c-accent);box-shadow:0 0 10px rgba(36,224,200,.9)}

/* ============ 板块通用 ============ */
.section{padding:96px 0;position:relative}
.section-alt{background:linear-gradient(180deg,rgba(10,20,36,.55),rgba(6,11,20,0))}
.sec-head{max-width:720px;margin-bottom:44px}
.sec-tag{
  display:inline-block;font-size:12.5px;letter-spacing:1.4px;text-transform:uppercase;
  color:var(--c-accent);font-family:var(--font-num);margin-bottom:12px;
}
.sec-title{font-size:32px;line-height:1.25}
.sec-sub{margin-top:14px;font-size:15.5px;color:var(--c-text-2)}
.sec-head.has-link{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none}
.text-link{font-size:14px;color:var(--c-accent);display:inline-flex;align-items:center;gap:6px;white-space:nowrap}
.text-link:hover{color:#7FF3E4}

/* ============ 导语 ============ */
.lead-box{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:30px 32px;box-shadow:var(--sh-card);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  border-left:3px solid var(--c-accent);
}
.lead-box p{font-size:16px;color:var(--c-text-2);line-height:1.9}
.lead-box p + p{margin-top:1.6em}
.lead-box strong{color:var(--c-text)}

/* ============ 速查表 ============ */
.table-wrap{
  margin-top:34px;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-card);
}
.quick-table{width:100%;border-collapse:collapse;font-size:14.5px}
.quick-table thead th{
  background:rgba(36,224,200,.09);color:var(--c-text);font-weight:600;font-size:14px;
  letter-spacing:.5px;padding:16px 20px;text-align:left;border-bottom:1px solid var(--c-line);white-space:nowrap;
}
.quick-table tbody td{
  padding:16px 20px;color:var(--c-text-2);vertical-align:top;
  border-bottom:1px solid rgba(255,255,255,.05);line-height:1.8;
}
.quick-table tbody tr:nth-child(even){background:rgba(255,255,255,.02)}
.quick-table tbody tr:hover{background:rgba(36,224,200,.05)}
.quick-table tbody tr:last-child td{border-bottom:none}
.quick-table td:first-child{color:var(--c-text);font-weight:600}
.quick-table td .tag-soft{
  display:inline-block;font-size:12.5px;color:var(--c-accent);
  background:rgba(36,224,200,.1);border:1px solid rgba(36,224,200,.26);
  border-radius:999px;padding:2px 10px;white-space:nowrap;
}
.table-note{margin-top:16px;font-size:13.5px;color:var(--c-text-3)}

/* ============ FAQ ============ */
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 24px;align-items:start}
.accordion{--bs-accordion-bg:transparent;--bs-accordion-border-color:transparent;--bs-accordion-btn-focus-box-shadow:none}
.faq-grid .accordion-item{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:14px;
  margin-bottom:12px;overflow:hidden;box-shadow:0 12px 32px rgba(0,0,0,.32);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  transition:border-color .28s ease, box-shadow .28s ease, transform .28s ease;
}
.faq-grid .accordion-item:hover{border-color:rgba(255,255,255,.16)}
.faq-grid .accordion-item:has(.accordion-button:not(.collapsed)){
  border-color:rgba(36,224,200,.45);
  box-shadow:0 0 0 1px rgba(36,224,200,.2), 0 18px 44px rgba(0,0,0,.5);
}
.faq-grid .accordion-button{
  position:relative;background:transparent;color:var(--c-text);
  font-size:17px;font-weight:600;line-height:1.6;
  padding:18px 22px 18px 56px;box-shadow:none;border-radius:14px;
}
.faq-grid .accordion-button:not(.collapsed){color:var(--c-accent);border-left:2px solid var(--c-accent)}
.faq-grid .accordion-button::after{display:none}
.faq-grid .accordion-button::before{
  content:"?";position:absolute;left:20px;top:50%;transform:translateY(-50%);
  width:22px;height:22px;border-radius:50%;border:1.5px solid var(--c-accent);color:var(--c-accent);
  font-family:var(--font-num);font-size:12px;font-weight:700;
  display:flex;align-items:center;justify-content:center;line-height:1;
}
.faq-grid .accordion-button.collapsed::before{border-color:var(--c-text-3);color:var(--c-text-3)}
.faq-grid .accordion-button:hover{background:rgba(255,255,255,.03)}
.faq-grid .accordion-body{
  padding:0 22px 20px 56px;font-size:15px;line-height:1.85;color:var(--c-text-2);
}

/* ============ 帮助渠道卡 ============ */
.help-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.help-card{
  position:relative;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:28px 26px;box-shadow:var(--sh-card);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  transition:transform .28s ease, box-shadow .28s ease, border-color .28s ease;
}
.help-card::before{
  content:"";position:absolute;top:0;left:26px;width:44px;height:3px;border-radius:0 0 3px 3px;
  background:var(--grad-main);opacity:.9;
}
.help-card:hover{transform:translateY(-4px);box-shadow:var(--sh-card-h);border-color:rgba(36,224,200,.42)}
.hcard-icon{
  width:48px;height:48px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  border:1.5px solid rgba(36,224,200,.45);color:var(--c-accent);font-size:19px;margin-bottom:18px;
  background:rgba(36,224,200,.07);
}
.help-card h3{font-size:20px;margin-bottom:10px}
.help-card p{font-size:14.5px;color:var(--c-text-2);line-height:1.85}
.help-card ul.plain{margin-top:16px;display:flex;flex-direction:column;gap:8px}
.help-card ul.plain li{font-size:13.5px;color:var(--c-text-3);display:flex;gap:9px;align-items:flex-start}
.help-card ul.plain li i{color:var(--c-accent);font-size:11px;margin-top:7px}

/* ============ 保障条 ============ */
.guar-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.guar-card{
  background:rgba(16,30,50,.42);border:1px solid var(--c-line);border-radius:16px;
  padding:24px 22px;transition:transform .28s ease, border-color .28s ease, background .28s ease;
}
.guar-card:hover{transform:translateY(-4px);border-color:rgba(36,224,200,.4);background:rgba(16,30,50,.62)}
.guar-card i{font-size:26px;color:var(--c-accent);display:block;margin-bottom:14px}
.guar-card h3{font-size:16px;margin-bottom:8px}
.guar-card p{font-size:13.5px;color:var(--c-text-2);line-height:1.75}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:22px;
  background:linear-gradient(120deg,rgba(36,224,200,.14),rgba(47,107,255,.16) 60%,rgba(16,30,50,.6));
  border:1px solid rgba(36,224,200,.28);
  padding:46px 46px;display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:0 24px 60px rgba(0,0,0,.5);
}
.cta-band::before{
  content:"";position:absolute;inset:0;opacity:.07;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.6) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.6) 1px,transparent 1px);
  background-size:24px 24px;
}
.cta-band > *{position:relative;z-index:1}
.cta-band h2{font-size:28px;line-height:1.3}
.cta-band p{margin-top:12px;font-size:15px;color:var(--c-text-2);max-width:620px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;flex:0 0 auto}

/* ============ 页脚 ============ */
.site-footer{
  background:#050A12;border-top:1px solid var(--c-line);
  padding:70px 0 0;margin-top:20px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:36px}
.footer-brand .brand{margin-bottom:18px}
.footer-desc{font-size:14px;color:var(--c-text-2);line-height:1.85;max-width:320px}
.footer-social{display:flex;gap:12px;margin-top:22px}
.footer-social a{
  width:38px;height:38px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  border:1px solid var(--c-line);background:rgba(255,255,255,.04);color:var(--c-text-2);font-size:15px;
  transition:all .24s ease;
}
.footer-social a:hover{color:var(--c-accent);border-color:rgba(36,224,200,.5);background:rgba(36,224,200,.08);transform:translateY(-2px)}
.footer-col h4{font-size:15px;color:var(--c-primary);margin-bottom:18px;letter-spacing:.6px}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col ul li a{font-size:14px;color:var(--c-text-2)}
.footer-col ul li a:hover{color:var(--c-accent)}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--c-text-2);line-height:1.7}
.footer-contact li i{color:var(--c-accent);margin-top:6px;font-size:13px}
.footer-bottom{
  margin-top:52px;border-top:1px solid var(--c-line);
  padding:22px 0 26px;display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  font-size:13px;color:var(--c-text-3);
}
.fb-links{display:flex;flex-wrap:wrap;gap:18px}
.fb-links a{font-size:13px;color:var(--c-text-3)}
.fb-links a:hover{color:var(--c-accent)}

/* ============ 响应式 ============ */
@media (max-width:1200px){
  .hero h1{font-size:42px}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px}
  .footer-col:last-child{grid-column:span 3}
}
@media (max-width:992px){
  .section{padding:72px 0}
  .hero{padding:132px 0 72px}
  .hero-inner{grid-template-columns:1fr;gap:36px}
  .hero-card{max-width:560px}
  .hero h1{font-size:36px}
  .sec-title{font-size:27px}
  .help-grid{grid-template-columns:1fr;gap:18px}
  .guar-grid{grid-template-columns:repeat(2,1fr);gap:16px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px 30px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .footer-col:last-child{grid-column:span 2}

  /* 移动端抽屉导航 */
  .nav-toggle{display:inline-flex}
  .nav-actions .btn-sm{display:none}
  .main-nav{
    position:fixed;top:0;right:0;height:100vh;width:min(84vw,320px);
    margin:0;padding:92px 22px 28px;
    flex-direction:column;align-items:stretch;gap:4px;
    background:rgba(8,16,30,.96);
    -webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);
    border-left:1px solid var(--c-line);
    box-shadow:-24px 0 60px rgba(0,0,0,.55);
    transform:translateX(105%);transition:transform .32s ease;
    overflow-y:auto;z-index:1040;
  }
  .main-nav.is-open{transform:translateX(0)}
  .main-nav .nav-link{height:48px;display:flex;align-items:center;padding:0 10px;font-size:16px;border-radius:12px}
  .main-nav .nav-link.is-active::after{display:none}
  .main-nav .nav-link.is-active{background:rgba(36,224,200,.08);color:var(--c-accent)}
  .nav-cta-mobile{display:inline-flex;margin-top:20px}
  body.nav-open{overflow:hidden}
}
@media (max-width:768px){
  body{font-size:15.5px}
  .nav-inner{height:60px;gap:14px}
  .brand-mark{width:34px;height:34px;font-size:13px;border-radius:10px}
  .brand-line1{font-size:15px}
  .brand-line2{font-size:11px}
  .hero{padding:112px 0 58px;min-height:560px}
  .hero h1{font-size:30px}
  .hero-sub{font-size:15.5px}
  .hero-cta .btn{width:100%}
  .hero-stats{gap:22px}
  .hero-stats strong{font-size:23px}
  .sec-head.has-link{flex-direction:column;align-items:flex-start;gap:12px}
  .sec-title{font-size:24px}
  .lead-box{padding:24px 20px}
  .faq-grid{grid-template-columns:1fr}
  .faq-grid .accordion-button{font-size:16px;padding:16px 18px 16px 50px}
  .faq-grid .accordion-button::before{left:16px;width:20px;height:20px}
  .faq-grid .accordion-body{padding:0 18px 18px 50px;font-size:14.5px}
  .cta-band{padding:30px 22px;border-radius:18px}
  .cta-band h2{font-size:22px}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .footer-col:last-child{grid-column:span 1}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:14px}

  /* 表格改卡片堆叠 */
  .table-wrap{background:transparent;border:none;box-shadow:none;overflow:visible;margin-top:26px}
  .quick-table thead{display:none}
  .quick-table,.quick-table tbody,.quick-table tr,.quick-table td{display:block;width:100%}
  .quick-table tbody tr{
    background:var(--c-surface);border:1px solid var(--c-line);border-radius:16px;
    margin-bottom:14px;padding:8px 0;box-shadow:0 12px 30px rgba(0,0,0,.35);
  }
  .quick-table tbody tr:nth-child(even){background:var(--c-surface)}
  .quick-table tbody td{
    border:none;padding:9px 18px;display:flex;gap:14px;align-items:flex-start;font-size:14px;
  }
  .quick-table tbody td::before{
    content:attr(data-label);flex:0 0 76px;color:var(--c-text-3);font-size:13px;line-height:1.7;
  }
  .quick-table td:first-child{padding-top:16px}
  .quick-table td:last-child{padding-bottom:16px}
}
@media (max-width:576px){
  .hero h1{font-size:28px}
  .hero-stats{gap:18px}
  .hero-stats li{min-width:calc(50% - 9px)}
  .guar-grid{grid-template-columns:1fr 1fr;gap:12px}
  .guar-card{padding:20px 16px}
  .guar-card i{font-size:22px;margin-bottom:10px}
  .guar-card h3{font-size:15px}
  .guar-card p{font-size:13px}
  .cta-actions .btn{width:100%}
}