/* roulang page: index */
:root{
  --bg-0:#070B10;
  --bg-1:#0C1219;
  --panel:rgba(18,25,34,.55);
  --panel-solid:#101821;
  --line:rgba(255,255,255,.08);
  --line-soft:rgba(255,255,255,.07);
  --primary:#1FE0B0;
  --primary-soft:rgba(31,224,176,.14);
  --violet:#7B61FF;
  --violet-soft:rgba(123,97,255,.14);
  --amber:#FFB020;
  --amber-soft:rgba(255,176,32,.10);
  --red:#FF5C6C;
  --text:#E9F0F7;
  --text-2:#93A3B5;
  --text-3:#5E6C7D;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-pill:999px;
  --shadow-card:0 8px 28px rgba(0,0,0,.35);
  --shadow-hover:0 16px 40px rgba(0,0,0,.45),0 0 0 1px rgba(31,224,176,.35),0 0 26px rgba(31,224,176,.18);
  --ease:cubic-bezier(.2,.7,.3,1);
  --dur:200ms;
  --font-base:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --font-num:"Inter","DIN Alternate",ui-monospace,SFMono-Regular,Menlo,monospace;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-base);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:linear-gradient(180deg,var(--bg-0) 0%,var(--bg-1) 100%);
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:32px 32px;
  opacity:.5;
  mask-image:radial-gradient(ellipse at 50% 0%,#000 30%,transparent 78%);
}
body::after{
  content:"";
  position:fixed;
  top:-260px;
  left:50%;
  width:900px;
  height:520px;
  transform:translateX(-50%);
  pointer-events:none;
  z-index:0;
  background:radial-gradient(ellipse at center,rgba(31,224,176,.06),transparent 70%);
}
img{max-width:100%;display:block;border:0;}
a{color:var(--primary);text-decoration:none;transition:color var(--dur) var(--ease);}
a:hover{color:#5BF0C8;}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;position:relative;z-index:1;}
.section{padding:88px 0;position:relative;z-index:1;}
.section--tight{padding:64px 0;}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:40px;}
.section-head__main{max-width:640px;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;letter-spacing:.06em;color:var(--primary);text-transform:uppercase;margin-bottom:14px;}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--primary),rgba(31,224,176,0));}
h2.section-title{font-size:32px;line-height:1.3;font-weight:700;letter-spacing:-.01em;}
.section-sub{margin-top:12px;font-size:15px;color:var(--text-2);line-height:1.8;}
.grid-cards{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;}
.grid-posts{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:700;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),background var(--dur) var(--ease),border-color var(--dur) var(--ease),color var(--dur) var(--ease);
}
.btn-primary{
  color:#06110E;
  background:linear-gradient(100deg,var(--primary),var(--violet));
  box-shadow:0 0 22px rgba(31,224,176,.35);
}
.btn-primary:hover{color:#06110E;filter:brightness(1.08);box-shadow:0 0 34px rgba(31,224,176,.5);transform:translateY(-2px);}
.btn-primary:active{transform:translateY(0);box-shadow:inset 0 3px 10px rgba(0,0,0,.3);}
.btn-ghost{
  color:var(--primary);background:transparent;border-color:rgba(255,255,255,.16);
}
.btn-ghost:hover{color:var(--primary);border-color:var(--primary);background:rgba(31,224,176,.06);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);background:rgba(31,224,176,.12);}
.btn-sm{height:38px;padding:0 18px;font-size:13px;border-radius:8px;}
.btn-lg{height:54px;padding:0 34px;font-size:16px;}
.btn-block{display:flex;width:100%;}
.link-arrow{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--primary);position:relative;padding-bottom:2px;}
.link-arrow::after{content:"";position:absolute;left:0;bottom:0;width:0;height:1px;background:linear-gradient(90deg,var(--primary),transparent);transition:width var(--dur) var(--ease);}
.link-arrow:hover::after{width:100%;}

/* 徽章与标签 */
.badge{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;letter-spacing:.02em;padding:4px 12px;border-radius:var(--radius-pill);line-height:1.6;}
.badge-primary{color:var(--primary);background:var(--primary-soft);border:1px solid rgba(31,224,176,.38);}
.badge-violet{color:#B3A6FF;background:var(--violet-soft);border:1px solid rgba(123,97,255,.4);}
.badge-amber{color:var(--amber);background:var(--amber-soft);border:1px solid rgba(255,176,32,.42);}
.tag{display:inline-flex;align-items:center;font-size:12px;font-weight:600;letter-spacing:.02em;color:var(--text-2);border:1px solid var(--line);border-radius:var(--radius-pill);padding:3px 10px;}

/* 活动条 */
.promo-bar{
  position:relative;z-index:120;
  height:42px;
  background:rgba(10,15,21,.92);
  border-bottom:1px solid rgba(31,224,176,.12);
  backdrop-filter:blur(10px);
}
.promo-inner{display:flex;align-items:center;gap:16px;height:42px;}
.promo-text{font-size:13px;color:var(--text-2);flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.countdown{display:flex;align-items:center;gap:4px;font-family:var(--font-num);}
.cd-num{display:inline-flex;align-items:center;justify-content:center;width:26px;height:30px;border-radius:6px;background:rgba(255,255,255,.06);border:1px solid rgba(255,176,32,.28);color:var(--amber);font-size:14px;font-weight:700;letter-spacing:.02em;}
.cd-sep{color:var(--text-3);font-size:13px;font-weight:700;}
.promo-close{margin-left:auto;width:26px;height:26px;border-radius:8px;background:transparent;border:1px solid transparent;color:var(--text-3);font-size:18px;line-height:1;cursor:pointer;transition:all var(--dur) var(--ease);}
.promo-close:hover{color:var(--text);background:rgba(255,255,255,.06);border-color:var(--line);}

/* 导航 */
.site-header{
  position:sticky;top:0;z-index:110;
  background:rgba(7,11,16,.55);
  border-bottom:1px solid transparent;
  transition:background var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.site-header.is-scrolled{
  background:rgba(7,11,16,.9);
  backdrop-filter:blur(14px) saturate(120%);
  border-bottom:1px solid rgba(31,224,176,.18);
  box-shadow:0 10px 30px rgba(0,0,0,.4);
}
.header-inner{display:flex;align-items:center;gap:28px;height:68px;}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:800;color:#06110E;
  background:linear-gradient(135deg,var(--primary),var(--violet));
  box-shadow:0 0 18px rgba(31,224,176,.35);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-name{font-size:16px;font-weight:800;color:var(--text);letter-spacing:.01em;}
.brand-sub{font-size:11px;color:var(--text-3);letter-spacing:.04em;}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:8px;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:68px;padding:0 14px;
  font-size:14px;font-weight:600;color:var(--text-2);
  transition:color var(--dur) var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:16px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),rgba(31,224,176,0));
  opacity:0;transform:scaleX(.4);transform-origin:left;
  transition:opacity var(--dur) var(--ease),transform var(--dur) var(--ease);
  box-shadow:0 0 10px rgba(31,224,176,.7);
}
.nav-link:hover{color:var(--text);}
.nav-link:hover::after{opacity:.6;transform:scaleX(1);}
.nav-link.is-active{color:var(--primary);}
.nav-link.is-active::after{opacity:1;transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.icon-btn{
  width:38px;height:38px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:10px;border:1px solid var(--line);background:rgba(255,255,255,.03);
  color:var(--text-2);cursor:pointer;transition:all var(--dur) var(--ease);
}
.icon-btn:hover{color:var(--primary);border-color:rgba(31,224,176,.45);background:rgba(31,224,176,.07);}
.icon-btn svg{width:17px;height:17px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.nav-toggle{display:none;width:38px;height:38px;border-radius:10px;border:1px solid var(--line);background:rgba(255,255,255,.03);cursor:pointer;padding:0;position:relative;}
.nav-toggle span{position:absolute;left:10px;right:10px;height:2px;border-radius:2px;background:var(--text);transition:all var(--dur) var(--ease);}
.nav-toggle span:nth-child(1){top:13px;}
.nav-toggle span:nth-child(2){top:19px;}
.nav-toggle span:nth-child(3){top:25px;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){top:19px;transform:rotate(45deg);background:var(--primary);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){top:19px;transform:rotate(-45deg);background:var(--primary);}
.search-panel{border-top:1px solid var(--line);background:rgba(9,14,20,.96);backdrop-filter:blur(14px);}
.search-form{display:flex;gap:12px;align-items:center;padding:16px 0;}
.search-form input{
  flex:1;height:46px;padding:0 16px;border-radius:var(--radius-btn);
  background:rgba(255,255,255,.04);border:1px solid var(--line);color:var(--text);font-size:15px;
  transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.search-form input::placeholder{color:var(--text-3);}
.search-form input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(31,224,176,.15);}

/* 移动抽屉 */
.mobile-drawer{
  position:fixed;inset:0;z-index:130;display:flex;flex-direction:column;
  background:rgba(7,11,16,.97);backdrop-filter:blur(18px);
  padding:20px;overflow-y:auto;
}
.mobile-drawer[hidden]{display:none;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px;}
.drawer-close{width:38px;height:38px;border-radius:10px;border:1px solid var(--line);background:transparent;color:var(--text);font-size:20px;cursor:pointer;}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:auto;}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  padding:16px 8px;font-size:17px;font-weight:600;color:var(--text-2);
  border-bottom:1px solid var(--line-soft);
}
.drawer-nav a.is-active{color:var(--primary);}
.drawer-foot{padding-top:20px;}

/* Hero */
.hero{padding:76px 0 88px;position:relative;z-index:1;}
.hero-grid{align-items:center;row-gap:44px;}
.hero-grid > .cell{min-width:0;}
.hero h1{
  font-size:48px;line-height:1.2;font-weight:800;letter-spacing:-.02em;margin-bottom:20px;
}
.hero h1 .accent{
  background:linear-gradient(100deg,var(--primary),var(--violet));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-lead{font-size:16px;line-height:1.85;color:var(--text-2);max-width:520px;margin-bottom:30px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:28px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;}
.pill-count{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:var(--radius-pill);font-size:12px;font-weight:600;color:var(--amber);background:var(--amber-soft);border:1px solid rgba(255,176,32,.35);font-family:var(--font-num);letter-spacing:.02em;}
.hero-card{
  position:relative;border-radius:var(--radius-card);overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  transition:transform 260ms var(--ease),box-shadow 260ms var(--ease);
  aspect-ratio:4/3.1;
  display:flex;flex-direction:column;justify-content:flex-end;
}
.hero-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.hero-card-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform 400ms var(--ease);}
.hero-card:hover .hero-card-img{transform:scale(1.03);}
.hero-card-overlay{position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,11,16,.25) 0%,rgba(7,11,16,.72) 55%,rgba(7,11,16,.94) 100%);}
.hero-card-top{position:absolute;top:18px;left:18px;right:18px;display:flex;justify-content:space-between;align-items:center;}
.hero-card-glass{
  position:relative;margin:18px;padding:20px;
  border-radius:14px;
  background:rgba(18,25,34,.62);
  backdrop-filter:blur(16px) saturate(120%);
  border:1px solid rgba(255,255,255,.1);
  background-image:linear-gradient(180deg,rgba(31,224,176,.10),transparent 45%);
}
.hero-card-title{font-size:20px;font-weight:700;margin-bottom:6px;}
.hero-card-meta{display:flex;flex-wrap:wrap;gap:8px 16px;font-size:13px;color:var(--text-2);margin-bottom:16px;font-family:var(--font-num);}
.hero-card-meta span{display:inline-flex;align-items:center;gap:6px;}
.hero-card-meta i{width:4px;height:4px;border-radius:50%;background:var(--primary);display:inline-block;}

/* 主推网格 */
.game-card{
  display:flex;flex-direction:column;height:100%;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  backdrop-filter:blur(16px) saturate(120%);
  box-shadow:var(--shadow-card);
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.game-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(31,224,176,.45);}
.game-card__media{position:relative;overflow:hidden;aspect-ratio:16/10;}
.game-card__media img{width:100%;height:100%;object-fit:cover;transition:transform 400ms var(--ease);}
.game-card:hover .game-card__media img{transform:scale(1.03);}
.game-card__badge{position:absolute;top:12px;left:12px;}
.game-card__body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.game-card__title{font-size:18px;font-weight:700;line-height:1.4;}
.game-card__desc{font-size:14px;color:var(--text-2);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.game-card__foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:14px;border-top:1px solid var(--line-soft);}
.game-card__stat{font-family:var(--font-num);font-size:13px;color:var(--text-2);letter-spacing:.02em;}
.game-card__stat strong{color:var(--primary);font-weight:700;}

/* 评价轮播 */
.review-wrap{position:relative;}
.review-track{
  display:flex;gap:24px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:6px 2px 20px;scrollbar-width:none;-ms-overflow-style:none;
}
.review-track::-webkit-scrollbar{display:none;}
.review-card{
  flex:0 0 calc((100% - 48px)/3);
  scroll-snap-align:start;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:22px;
  backdrop-filter:blur(16px) saturate(120%);
  box-shadow:var(--shadow-card);
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.review-card:hover{transform:translateY(-4px);border-color:rgba(31,224,176,.4);box-shadow:var(--shadow-hover);}
.review-head{display:flex;align-items:center;gap:12px;margin-bottom:14px;}
.avatar{
  width:40px;height:40px;border-radius:50%;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:700;color:#06110E;
  background:linear-gradient(135deg,var(--primary),var(--violet));
}
.review-name{font-size:14px;font-weight:700;}
.stars{font-size:13px;letter-spacing:.12em;color:var(--primary);line-height:1.4;}
.stars .off{color:rgba(255,255,255,.2);}
.review-text{font-size:14px;line-height:1.8;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:50px;}
.review-foot{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:16px;padding-top:14px;border-top:1px solid var(--line-soft);font-size:12px;color:var(--text-3);font-family:var(--font-num);}
.review-nav{display:flex;gap:10px;}
.review-dots{display:flex;justify-content:center;gap:8px;margin-top:8px;}
.dot{width:8px;height:8px;border-radius:50%;border:0;background:rgba(255,255,255,.16);cursor:pointer;padding:0;transition:all var(--dur) var(--ease);}
.dot.is-active{width:22px;border-radius:4px;background:var(--primary);box-shadow:0 0 12px rgba(31,224,176,.55);}

/* 保障条 */
.assure-bar{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  backdrop-filter:blur(16px) saturate(120%);
  background-image:linear-gradient(180deg,rgba(31,224,176,.08),transparent 45%);
  overflow:hidden;
}
.assure-item{display:flex;align-items:flex-start;gap:14px;padding:26px 24px;border-right:1px solid var(--line-soft);}
.assure-item:last-child{border-right:0;}
.assure-icon{
  width:42px;height:42px;flex-shrink:0;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  border:1px solid rgba(31,224,176,.35);background:rgba(31,224,176,.08);color:var(--primary);
}
.assure-icon svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;}
.assure-title{font-size:15px;font-weight:700;margin-bottom:4px;}
.assure-desc{font-size:13px;color:var(--text-2);line-height:1.65;}

/* 资讯列表 */
.post-card{
  position:relative;height:100%;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  backdrop-filter:blur(16px) saturate(120%);
  box-shadow:var(--shadow-card);
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
  overflow:hidden;
}
.post-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,var(--primary),var(--violet),transparent);
  opacity:.55;
}
.post-card:hover{transform:translateY(-4px);border-color:rgba(31,224,176,.45);box-shadow:var(--shadow-hover);}
.post-link{display:flex;flex-direction:column;gap:12px;height:100%;padding:24px;color:inherit;}
.post-link:hover{color:inherit;}
.post-title{font-size:18px;font-weight:700;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color var(--dur) var(--ease);}
.post-card:hover .post-title{color:var(--primary);}
.post-summary{font-size:14px;color:var(--text-2);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:16px;border-top:1px solid var(--line-soft);font-size:13px;color:var(--text-3);font-family:var(--font-num);}
.post-more{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;color:var(--primary);}
.empty-state{
  grid-column:1/-1;text-align:center;padding:56px 20px;
  border:1px dashed rgba(255,255,255,.14);border-radius:var(--radius-card);
  background:rgba(255,255,255,.02);
}
.empty-state svg{width:48px;height:48px;stroke:rgba(31,224,176,.4);fill:none;stroke-width:1.4;margin:0 auto 16px;}
.empty-state p{font-size:14px;color:var(--text-2);margin-bottom:18px;}

/* CTA 条 */
.cta-band{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;
  padding:40px;
  border-radius:var(--radius-card);
  border:1px solid rgba(31,224,176,.28);
  background:var(--panel);
  backdrop-filter:blur(16px) saturate(120%);
  background-image:linear-gradient(120deg,rgba(31,224,176,.13),rgba(123,97,255,.12) 65%,transparent);
  box-shadow:var(--shadow-card);
}
.cta-band h2{font-size:28px;font-weight:700;line-height:1.35;margin-bottom:8px;}
.cta-band p{font-size:14px;color:var(--text-2);}
.cta-band__actions{display:flex;align-items:center;gap:18px;flex-wrap:wrap;}

/* FAQ */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:920px;margin:0 auto;}
.faq-item{
  border:1px solid var(--line);border-radius:14px;overflow:hidden;
  background:rgba(18,25,34,.45);
  backdrop-filter:blur(12px);
  transition:border-color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.faq-item:hover{border-color:rgba(31,224,176,.3);}
.faq-item.is-open{border-color:rgba(31,224,176,.45);background:rgba(18,25,34,.7);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;background:transparent;border:0;cursor:pointer;
  font-size:16px;font-weight:600;color:var(--text);text-align:left;line-height:1.55;
  transition:color var(--dur) var(--ease);
}
.faq-q:hover{color:var(--primary);}
.faq-item.is-open .faq-q{color:var(--primary);}
.faq-icon{flex-shrink:0;width:22px;height:22px;border-radius:50%;border:1px solid rgba(31,224,176,.4);position:relative;transition:transform var(--dur) var(--ease),background var(--dur) var(--ease);}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;top:50%;left:50%;background:var(--primary);border-radius:1px;transform:translate(-50%,-50%);}
.faq-icon::before{width:10px;height:1.6px;}
.faq-icon::after{width:1.6px;height:10px;transition:opacity var(--dur) var(--ease);}
.faq-item.is-open .faq-icon{transform:rotate(90deg);background:rgba(31,224,176,.12);}
.faq-item.is-open .faq-icon::after{opacity:0;}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows 260ms var(--ease);}
.faq-item.is-open .faq-a{grid-template-rows:1fr;}
.faq-a__inner{overflow:hidden;}
.faq-a__inner p{padding:0 22px 22px;font-size:15px;line-height:1.85;color:var(--text-2);}

/* 页脚 */
.site-footer{position:relative;z-index:1;border-top:1px solid var(--line-soft);background:rgba(6,10,14,.6);padding:64px 0 0;margin-top:24px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-about{font-size:14px;color:var(--text-2);line-height:1.85;max-width:320px;}
.footer-title{font-size:14px;font-weight:700;color:var(--text);margin-bottom:16px;letter-spacing:.02em;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:var(--text-2);transition:color var(--dur) var(--ease),padding-left var(--dur) var(--ease);}
.footer-links a:hover{color:var(--primary);padding-left:4px;}
.footer-contact p{font-size:14px;color:var(--text-2);line-height:1.8;margin-bottom:14px;}
.qr-box{
  width:96px;height:96px;border-radius:12px;border:1px dashed rgba(255,255,255,.18);
  display:flex;align-items:center;justify-content:center;text-align:center;
  font-size:11px;line-height:1.5;color:var(--text-3);padding:8px;
  background:rgba(255,255,255,.02);
}
.footer-bottom{
  margin-top:48px;padding:22px 0;border-top:1px solid var(--line-soft);
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}
.footer-bottom .dot-sep{color:rgba(255,255,255,.14);margin:0 8px;}

/* 响应式 */
@media screen and (min-width:64em){
  .hero-grid > .cell:first-child{padding-right:48px;}
}
@media screen and (max-width:1024px){
  .grid-cards{grid-template-columns:repeat(2,minmax(0,1fr));}
  .grid-posts{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px;}
  .review-card{flex:0 0 calc((100% - 24px)/2);}
  .hero h1{font-size:40px;}
  .section{padding:72px 0;}
  .main-nav{display:none;}
  .nav-toggle{display:block;}
  .header-cta{display:none;}
}
@media screen and (max-width:768px){
  .container{padding:0 16px;}
  .section{padding:56px 0;}
  .hero{padding:48px 0 64px;}
  .hero h1{font-size:32px;}
  .hero-lead{font-size:15px;}
  h2.section-title{font-size:26px;}
  .assure-item{border-right:0;border-bottom:1px solid var(--line-soft);padding:22px 18px;}
  .assure-bar .assure-item:nth-child(odd){border-right:1px solid var(--line-soft);}
  .assure-bar .assure-item:nth-last-child(-n+2){border-bottom:0;}
  .cta-band{padding:28px;}
  .cta-band h2{font-size:22px;}
  .cta-band__actions{width:100%;}
  .cta-band__actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .footer-brand{grid-column:1/-1;}
  .brand-name{font-size:15px;}
  .promo-text{display:none;}
  .review-card{flex:0 0 82%;}
  .review-nav{display:none;}
  .faq-q{font-size:15px;padding:18px;}
  .faq-a__inner p{padding:0 18px 18px;font-size:14px;}
}
@media screen and (max-width:560px){
  .grid-cards{grid-template-columns:1fr;}
  .grid-posts{grid-template-columns:1fr;}
  .hero h1{font-size:29px;}
  .hero-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .hero-card{aspect-ratio:auto;}
  .hero-card-img{position:relative;height:200px;}
  .hero-card{display:block;}
  .hero-card-overlay{display:none;}
  .hero-card-glass{margin:0;border-radius:0;border-left:0;border-right:0;border-bottom:0;}
  .hero-card-top{position:relative;top:0;left:0;right:0;padding:14px 14px 0;}
  .post-foot{font-size:12px;}
  .brand-sub{display:none;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:.001ms !important;animation-duration:.001ms !important;scroll-behavior:auto !important;}
}

/* roulang page: category1 */
:root{
  --bg-0:#070B10;
  --bg-1:#0C1219;
  --panel:rgba(18,25,34,0.55);
  --panel-solid:#111925;
  --line:rgba(255,255,255,0.08);
  --line-soft:rgba(255,255,255,0.07);
  --line-strong:rgba(255,255,255,0.16);
  --primary:#1FE0B0;
  --primary-dim:rgba(31,224,176,0.12);
  --primary-soft:rgba(31,224,176,0.06);
  --secondary:#7B61FF;
  --secondary-dim:rgba(123,97,255,0.14);
  --amber:#FFB020;
  --amber-dim:rgba(255,176,32,0.08);
  --danger:#FF5C6C;
  --text:#E9F0F7;
  --text-2:#93A3B5;
  --text-3:#5E6C7D;
  --r-card:16px;
  --r-btn:10px;
  --r-pill:999px;
  --shadow-card:0 8px 28px rgba(0,0,0,0.35);
  --shadow-hover:0 16px 40px rgba(0,0,0,0.45),0 0 0 1px rgba(31,224,176,0.35),0 0 26px rgba(31,224,176,0.18);
  --ease:cubic-bezier(.2,.7,.3,1);
  --dur:200ms;
  --font-sans:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --font-num:"Inter","DIN Alternate",ui-monospace,SFMono-Regular,Menlo,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:linear-gradient(180deg,var(--bg-0) 0%,var(--bg-1) 100%) fixed;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background-image:linear-gradient(rgba(255,255,255,0.03) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,0.03) 1px,transparent 1px);
  background-size:32px 32px;
  pointer-events:none;
  z-index:0;
}
body::after{
  content:"";
  position:fixed;
  top:-280px;left:50%;
  transform:translateX(-50%);
  width:1100px;height:620px;
  background:radial-gradient(closest-side,rgba(31,224,176,0.07),transparent 72%);
  pointer-events:none;
  z-index:0;
}
img{max-width:100%;height:auto;display:block;border-style:none;}
a{color:var(--primary);text-decoration:none;transition:color var(--dur) var(--ease);}
a:hover,a:focus{color:var(--primary);}
p{margin:0 0 16px;}
h1,h2,h3,h4{margin:0;font-family:var(--font-sans);color:var(--text);}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--primary);color:#06110E;padding:10px 18px;z-index:999;border-radius:0 0 10px 0;font-weight:700;}
.skip-link:focus{left:0;}
.container{width:100%;max-width:1220px;margin:0 auto;padding:0 24px;position:relative;z-index:1;}
/* ============ 活动条 ============ */
.promo-bar{
  position:relative;
  z-index:60;
  height:42px;
  background:rgba(9,14,20,0.92);
  border-bottom:1px solid rgba(31,224,176,0.12);
  display:flex;
  align-items:center;
  font-size:13px;
  color:var(--text-2);
}
.promo-inner{display:flex;align-items:center;gap:14px;width:100%;max-width:1220px;margin:0 auto;padding:0 24px;}
.promo-badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:600;letter-spacing:.02em;
  color:var(--amber);
  border:1px solid rgba(255,176,32,0.45);
  background:var(--amber-dim);
  padding:2px 10px;border-radius:var(--r-pill);
  white-space:nowrap;
}
.promo-count{display:inline-flex;align-items:center;gap:2px;font-family:var(--font-num);}
.promo-count span{
  display:inline-flex;align-items:center;justify-content:center;
  width:26px;height:30px;
  background:rgba(255,255,255,0.06);
  border:1px solid var(--line);
  border-radius:6px;
  color:var(--text);
  font-size:14px;font-weight:700;
  letter-spacing:.04em;
}
.promo-count i{font-style:normal;color:var(--text-3);padding:0 2px;}
.promo-text{color:var(--text-2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.promo-close{
  margin-left:auto;background:transparent;border:0;color:var(--text-3);
  width:28px;height:28px;border-radius:6px;display:inline-flex;align-items:center;justify-content:center;
  transition:color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.promo-close:hover{color:var(--text);background:rgba(255,255,255,0.06);}
/* ============ 头部 ============ */
.site-header{
  position:sticky;top:0;z-index:50;
  height:68px;
  display:flex;align-items:center;
  background:linear-gradient(180deg,rgba(7,11,16,0.72),rgba(7,11,16,0.28));
  border-bottom:1px solid transparent;
  transition:background var(--dur) var(--ease),border-color var(--dur) var(--ease),backdrop-filter var(--dur) var(--ease);
}
.site-header.is-scrolled{
  background:rgba(8,13,19,0.88);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border-bottom:1px solid rgba(31,224,176,0.22);
  box-shadow:0 10px 30px rgba(0,0,0,0.4);
}
.header-inner{display:flex;align-items:center;gap:28px;}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--text);flex-shrink:0;}
.brand:hover{color:var(--text);}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:17px;font-weight:800;color:#06110E;
  background:linear-gradient(120deg,var(--primary),var(--secondary));
  box-shadow:0 0 18px rgba(31,224,176,0.35);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:16px;font-weight:800;letter-spacing:.01em;}
.brand-sub{font-size:11px;color:var(--text-3);letter-spacing:.06em;}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:8px;}
.nav-link{
  position:relative;
  font-size:15px;font-weight:500;color:var(--text-2);
  padding:6px 0;
  transition:color var(--dur) var(--ease);
  white-space:nowrap;
}
.nav-link:hover{color:var(--text);}
.nav-link.is-active{color:var(--primary);font-weight:600;}
.nav-link.is-active::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),transparent);
  box-shadow:0 0 10px rgba(31,224,176,0.8);
}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.icon-btn{
  width:38px;height:38px;border-radius:10px;
  display:inline-flex;align-items:center;justify-content:center;
  background:transparent;border:1px solid var(--line);
  color:var(--text-2);
  transition:all var(--dur) var(--ease);
}
.icon-btn:hover{color:var(--primary);border-color:rgba(31,224,176,0.5);background:var(--primary-soft);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;
  border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:700;line-height:1;
  white-space:nowrap;
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),background var(--dur) var(--ease),color var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.btn-primary{
  background:linear-gradient(100deg,var(--primary),var(--secondary));
  color:#06110E;
  box-shadow:0 0 22px rgba(31,224,176,0.35);
}
.btn-primary:hover,.btn-primary:focus{
  color:#06110E;
  transform:translateY(-2px);
  box-shadow:0 0 34px rgba(31,224,176,0.55);
}
.btn-primary:active{transform:translateY(0);box-shadow:inset 0 2px 10px rgba(0,0,0,0.28);}
.btn-ghost{
  background:transparent;color:var(--primary);
  border:1px solid var(--line-strong);
}
.btn-ghost:hover,.btn-ghost:focus{
  color:var(--primary);
  border-color:var(--primary);
  background:var(--primary-soft);
  transform:translateY(-2px);
}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{height:38px;padding:0 18px;font-size:13px;box-shadow:0 0 16px rgba(31,224,176,0.28);}
.btn-block{width:100%;}
.link-more{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--primary);
  padding-bottom:2px;
  background-image:linear-gradient(90deg,var(--primary),transparent);
  background-size:0 1px;background-repeat:no-repeat;background-position:0 100%;
  transition:background-size var(--dur) var(--ease);
}
.link-more:hover{background-size:100% 1px;}
.hamburger{
  display:none;
  width:40px;height:40px;border-radius:10px;
  background:transparent;border:1px solid var(--line);
  color:var(--text);align-items:center;justify-content:center;font-size:16px;
  transition:all var(--dur) var(--ease);
}
.hamburger:hover{border-color:var(--primary);color:var(--primary);}
/* ============ 移动抽屉 ============ */
.drawer-mask{
  position:fixed;inset:0;background:rgba(4,7,11,0.72);
  backdrop-filter:blur(4px);
  opacity:0;visibility:hidden;transition:opacity var(--dur) var(--ease),visibility var(--dur) var(--ease);
  z-index:70;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);
  background:rgba(12,18,25,0.98);
  border-left:1px solid var(--line);
  transform:translateX(104%);
  transition:transform 240ms var(--ease);
  z-index:80;
  display:flex;flex-direction:column;
  padding:22px 22px 26px;
}
.mobile-drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px;}
.drawer-links{display:flex;flex-direction:column;gap:4px;}
.drawer-links a{
  padding:13px 12px;border-radius:10px;
  color:var(--text-2);font-size:15px;font-weight:500;
  border:1px solid transparent;
  transition:all var(--dur) var(--ease);
}
.drawer-links a:hover{background:rgba(255,255,255,0.04);color:var(--text);}
.drawer-links a.is-active{color:var(--primary);background:var(--primary-soft);border-color:rgba(31,224,176,0.24);}
.drawer-foot{margin-top:auto;padding-top:22px;}
/* ============ 面包屑 ============ */
.crumb-bar{padding:26px 0 0;position:relative;z-index:1;}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--text-2);
}
.breadcrumb a{color:var(--text-2);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .sep{color:var(--text-3);}
.breadcrumb .current{color:var(--primary);font-weight:600;}
/* ============ 分类头 ============ */
.cat-head{padding:22px 0 40px;position:relative;z-index:1;}
.cat-head-inner{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.cat-head h1{
  font-size:46px;line-height:1.2;font-weight:800;letter-spacing:-0.01em;
  margin-bottom:16px;
}
.cat-head h1 .accent{
  background:linear-gradient(100deg,var(--primary),var(--secondary));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.cat-head .lead{max-width:720px;color:var(--text-2);font-size:16px;margin:0;}
.cat-head-side{display:flex;gap:10px;flex-wrap:wrap;}
.stat-chip{
  display:inline-flex;flex-direction:column;gap:2px;
  padding:12px 18px;border-radius:14px;
  background:var(--panel);border:1px solid var(--line);
  backdrop-filter:blur(16px) saturate(120%);
  -webkit-backdrop-filter:blur(16px) saturate(120%);
  min-width:112px;
}
.stat-chip b{font-family:var(--font-num);font-size:19px;color:var(--primary);letter-spacing:.02em;}
.stat-chip span{font-size:12px;color:var(--text-3);}
/* ============ 两栏布局 ============ */
.layout-grid{
  display:grid;
  grid-template-columns:264px minmax(0,1fr);
  gap:32px;
  align-items:start;
  padding-bottom:88px;
}
.side-col{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px;}
.side-block{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:20px;
  backdrop-filter:blur(16px) saturate(120%);
  -webkit-backdrop-filter:blur(16px) saturate(120%);
  background-image:linear-gradient(180deg,rgba(31,224,176,0.10),transparent 45%);
  box-shadow:var(--shadow-card);
}
.side-title{
  font-size:13px;font-weight:700;color:var(--text-3);
  letter-spacing:.08em;margin-bottom:14px;
}
.filter-pills{display:flex;flex-direction:column;gap:8px;}
.pill{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:10px 14px;border-radius:10px;
  border:1px solid var(--line);
  background:rgba(255,255,255,0.02);
  color:var(--text-2);font-size:14px;font-weight:500;
  transition:all var(--dur) var(--ease);
  text-align:left;
}
.pill i{font-style:normal;font-family:var(--font-num);font-size:12px;color:var(--text-3);}
.pill:hover{color:var(--text);border-color:rgba(31,224,176,0.4);background:var(--primary-soft);}
.pill.is-active{
  color:var(--primary);
  border-color:rgba(31,224,176,0.5);
  background:var(--primary-dim);
  box-shadow:0 0 0 1px rgba(31,224,176,0.14) inset;
}
.pill.is-active i{color:var(--primary);}
.info-row{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:10px 0;border-bottom:1px dashed var(--line-soft);font-size:13px;
}
.info-row:last-of-type{border-bottom:0;}
.info-row span{color:var(--text-3);}
.info-row b{font-family:var(--font-num);color:var(--text);font-weight:600;}
.side-cta{margin-top:14px;}
/* ============ 列表卡 ============ */
.list-col{display:flex;flex-direction:column;gap:20px;min-width:0;}
.list-head{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:2px;}
.list-head h2{font-size:22px;font-weight:700;}
.list-head .count{font-family:var(--font-num);font-size:13px;color:var(--text-3);}
.list-card{
  display:grid;
  grid-template-columns:40% minmax(0,1fr);
  gap:0;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  backdrop-filter:blur(16px) saturate(120%);
  -webkit-backdrop-filter:blur(16px) saturate(120%);
  box-shadow:var(--shadow-card);
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.list-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-hover);
  border-color:rgba(31,224,176,0.32);
}
.list-card-media{position:relative;overflow:hidden;min-height:100%;}
.list-card-media img{
  width:100%;height:100%;object-fit:cover;
  transition:transform 320ms var(--ease);
}
.list-card:hover .list-card-media img{transform:scale(1.03);}
.corner-badge{
  position:absolute;top:12px;left:12px;
  font-size:12px;font-weight:600;letter-spacing:.02em;
  padding:4px 10px;border-radius:var(--r-pill);
  color:var(--primary);
  background:rgba(9,20,18,0.82);
  border:1px solid rgba(31,224,176,0.45);
  backdrop-filter:blur(6px);
}
.list-card-body{padding:22px 24px;display:flex;flex-direction:column;gap:10px;min-width:0;}
.badge-row{display:flex;flex-wrap:wrap;gap:8px;}
.badge{
  display:inline-flex;align-items:center;
  font-size:12px;font-weight:600;letter-spacing:.02em;
  padding:3px 10px;border-radius:var(--r-pill);
  border:1px solid var(--line-strong);
  color:var(--text-2);
  background:rgba(255,255,255,0.03);
}
.badge-primary{color:var(--primary);border-color:rgba(31,224,176,0.4);background:var(--primary-soft);}
.badge-purple{color:#B3A5FF;border-color:rgba(123,97,255,0.45);background:var(--secondary-dim);}
.badge-amber{color:var(--amber);border-color:rgba(255,176,32,0.45);background:var(--amber-dim);}
.list-card-body h3{
  font-size:20px;font-weight:700;line-height:1.35;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.list-card-body h3 a{color:var(--text);}
.list-card-body h3 a:hover{color:var(--primary);}
.desc-clamp{
  color:var(--text-2);font-size:14px;line-height:1.7;margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.meta-strip{
  display:flex;flex-wrap:wrap;gap:8px 18px;
  padding-top:12px;margin-top:auto;
  border-top:1px solid var(--line-soft);
  font-size:13px;color:var(--text-3);
}
.meta-strip b{font-family:var(--font-num);color:var(--text);font-weight:600;}
.card-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap;padding-top:6px;}
/* ============ 检查清单 ============ */
.check-section{padding:0 0 88px;position:relative;z-index:1;}
.section-head{margin-bottom:32px;}
.section-head h2{font-size:32px;line-height:1.3;font-weight:700;margin-bottom:10px;}
.section-head p{color:var(--text-2);font-size:15px;margin:0;max-width:680px;}
.check-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}
.check-card{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:24px 22px;
  backdrop-filter:blur(16px) saturate(120%);
  -webkit-backdrop-filter:blur(16px) saturate(120%);
  background-image:linear-gradient(180deg,rgba(31,224,176,0.08),transparent 45%);
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.check-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(31,224,176,0.3);}
.check-icon{
  width:44px;height:44px;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--primary);font-size:18px;
  border:1px solid rgba(31,224,176,0.35);
  background:var(--primary-soft);
  margin-bottom:16px;
}
.check-card h3{font-size:17px;font-weight:600;margin-bottom:8px;}
.check-card p{font-size:14px;color:var(--text-2);margin:0;line-height:1.7;}
/* ============ FAQ ============ */
.faq-section{padding:0 0 88px;position:relative;z-index:1;}
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:920px;}
.faq-item{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:14px;
  overflow:hidden;
  transition:border-color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.faq-item:hover{border-color:rgba(31,224,176,0.28);}
.faq-item.is-open{border-color:rgba(31,224,176,0.42);background:rgba(20,29,38,0.66);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;background:transparent;border:0;
  color:var(--text);font-size:16px;font-weight:600;text-align:left;
  transition:color var(--dur) var(--ease);
}
.faq-q:hover{color:var(--primary);}
.faq-q i{color:var(--primary);font-size:13px;transition:transform var(--dur) var(--ease);flex-shrink:0;}
.faq-item.is-open .faq-q i{transform:rotate(180deg);}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height 280ms var(--ease);
}
.faq-a-inner{padding:0 22px 20px;color:var(--text-2);font-size:14.5px;line-height:1.8;}
.faq-a-inner p{margin:0 0 10px;}
.faq-a-inner p:last-child{margin-bottom:0;}
/* ============ CTA ============ */
.cta-section{padding:0 0 96px;position:relative;z-index:1;}
.cta-bar{
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  padding:36px 40px;
  border-radius:20px;
  border:1px solid rgba(31,224,176,0.24);
  background:linear-gradient(120deg,rgba(20,32,38,0.9),rgba(16,20,34,0.9));
  backdrop-filter:blur(16px) saturate(120%);
  -webkit-backdrop-filter:blur(16px) saturate(120%);
  box-shadow:0 20px 50px rgba(0,0,0,0.4);
  position:relative;overflow:hidden;
}
.cta-bar::before{
  content:"";position:absolute;right:-120px;top:-120px;width:340px;height:340px;
  background:radial-gradient(closest-side,rgba(31,224,176,0.16),transparent 70%);
  pointer-events:none;
}
.cta-bar h2{font-size:28px;line-height:1.3;font-weight:700;margin-bottom:8px;}
.cta-bar p{color:var(--text-2);font-size:15px;margin:0;max-width:560px;}
.cta-actions{display:flex;align-items:center;gap:16px;flex-wrap:wrap;}
/* ============ 页脚 ============ */
.site-footer{
  border-top:1px solid var(--line);
  padding:56px 0 0;
  position:relative;z-index:1;
  background:rgba(6,10,15,0.6);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:32px;
  padding-bottom:44px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-about{font-size:14px;color:var(--text-2);line-height:1.8;margin:0;max-width:340px;}
.footer-title{font-size:13px;font-weight:700;color:var(--text-3);letter-spacing:.08em;margin-bottom:14px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{color:var(--text-2);font-size:14px;transition:color var(--dur) var(--ease),padding-left var(--dur) var(--ease);}
.footer-links a:hover{color:var(--primary);padding-left:3px;}
.footer-contact p{font-size:14px;color:var(--text-2);line-height:1.8;margin:0 0 14px;}
.qr-box{
  width:104px;height:104px;border-radius:12px;
  border:1px dashed var(--line-strong);
  display:flex;align-items:center;justify-content:center;text-align:center;
  font-size:12px;color:var(--text-3);line-height:1.6;
  background:rgba(255,255,255,0.02);
}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:18px 0 24px;
  border-top:1px solid var(--line-soft);
  font-size:13px;color:var(--text-3);
}
.footer-bottom a{color:var(--text-3);}
.footer-bottom a:hover{color:var(--primary);}
.dot-sep{color:var(--text-3);padding:0 6px;}
/* ============ 响应式 ============ */
@media screen and (max-width:1200px){
  .layout-grid{grid-template-columns:236px minmax(0,1fr);gap:24px;}
  .cat-head h1{font-size:40px;}
}
@media screen and (max-width:1024px){
  .main-nav{display:none;}
  .hamburger{display:inline-flex;}
  .header-actions .btn-primary{display:none;}
  .cat-head h1{font-size:36px;}
  .check-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .layout-grid{grid-template-columns:minmax(0,1fr);padding-bottom:72px;}
  .side-col{position:static;top:auto;}
  .filter-pills{flex-direction:row;overflow-x:auto;gap:10px;padding-bottom:4px;scrollbar-width:none;}
  .filter-pills::-webkit-scrollbar{display:none;}
  .pill{flex:0 0 auto;white-space:nowrap;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media screen and (max-width:768px){
  .container{padding:0 18px;}
  .promo-text{display:none;}
  .promo-inner{padding:0 18px;gap:10px;}
  .cat-head{padding:18px 0 32px;}
  .cat-head h1{font-size:31px;line-height:1.24;}
  .cat-head .lead{font-size:15px;}
  .stat-chip{padding:10px 14px;min-width:96px;}
  .stat-chip b{font-size:17px;}
  .list-card{grid-template-columns:minmax(0,1fr);}
  .list-card-media{aspect-ratio:16/9;min-height:0;}
  .list-card-body{padding:18px;}
  .list-card-body h3{font-size:18px;}
  .section-head h2{font-size:26px;}
  .cta-bar{padding:26px 22px;}
  .cta-bar h2{font-size:23px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .check-section,.faq-section{padding-bottom:64px;}
  .cta-section{padding-bottom:72px;}
}
@media screen and (max-width:520px){
  .brand-name{font-size:14.5px;}
  .brand-sub{display:none;}
  .brand-mark{width:30px;height:30px;font-size:15px;}
  .cat-head h1{font-size:27px;}
  .check-grid{grid-template-columns:minmax(0,1fr);}
  .footer-grid{grid-template-columns:1fr;}
  .meta-strip{gap:6px 14px;font-size:12.5px;}
  .btn{height:46px;padding:0 20px;font-size:14px;}
  .btn-sm{height:38px;padding:0 16px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:0.001ms !important;transition-duration:0.001ms !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: article */
:root{
  --bg-0:#070B10;
  --bg-1:#0C1219;
  --panel:rgba(18,25,34,0.55);
  --panel-solid:rgba(14,20,28,0.9);
  --line:rgba(255,255,255,0.08);
  --line-soft:rgba(255,255,255,0.07);
  --pri:#1FE0B0;
  --pri-soft:rgba(31,224,176,0.10);
  --pri-2:#7B61FF;
  --amber:#FFB020;
  --danger:#FF5C6C;
  --txt:#E9F0F7;
  --txt-2:#93A3B5;
  --txt-3:#5E6C7D;
  --body-txt:#CFDAE6;
  --r-card:16px;
  --r-btn:10px;
  --r-img:12px;
  --sh-card:0 8px 28px rgba(0,0,0,0.35);
  --sh-hover:0 16px 40px rgba(0,0,0,0.45),0 0 0 1px rgba(31,224,176,0.35),0 0 26px rgba(31,224,176,0.18);
  --t:220ms cubic-bezier(.2,.7,.3,1);
  --ease:cubic-bezier(.2,.7,.3,1);
  --mono:"Inter","DIN Alternate",ui-monospace,SFMono-Regular,Menlo,monospace;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:96px;}
body{
  margin:0;
  min-height:100vh;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--txt);
  background-color:var(--bg-0);
  background-image:
    radial-gradient(920px 480px at 50% -160px, rgba(31,224,176,0.075), transparent 70%),
    radial-gradient(680px 420px at 92% 12%, rgba(123,97,255,0.06), transparent 72%),
    linear-gradient(180deg,#070B10 0%,#0C1219 55%,#070B10 100%);
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,0.03) 1px,transparent 1px);
  background-size:32px 32px;
  -webkit-mask-image:radial-gradient(circle at 50% 0%,#000 0%,rgba(0,0,0,0.25) 55%,transparent 82%);
  mask-image:radial-gradient(circle at 50% 0%,#000 0%,rgba(0,0,0,0.25) 55%,transparent 82%);
  opacity:.7;
}
header,main,footer{position:relative;z-index:1;}
img{max-width:100%;display:block;border:0;}
a{color:var(--pri);text-decoration:none;transition:color var(--t),opacity var(--t);}
a:hover{color:#5ff0cd;}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--pri);outline-offset:2px;border-radius:6px;}
button{font-family:inherit;}
p{margin:0 0 16px;}
h1,h2,h3,h4{font-weight:700;color:var(--txt);margin:0;}
ul,ol{margin:0;}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
.grid-margin-x{margin-left:-12px;margin-right:-12px;}
.grid-margin-x>.cell{padding-left:12px;padding-right:12px;}

/* ---------- 活动条 ---------- */
.promo-bar{
  position:relative;
  z-index:60;
  background:rgba(9,14,20,0.94);
  border-bottom:1px solid rgba(31,224,176,0.12);
  backdrop-filter:blur(10px);
}
.promo-inner{
  display:flex;
  align-items:center;
  gap:14px;
  min-height:42px;
  padding-top:6px;
  padding-bottom:6px;
  font-size:13px;
  color:var(--txt-2);
}
.promo-badge{flex:0 0 auto;}
.promo-text{
  flex:1 1 auto;
  min-width:0;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}
.countdown{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:auto;
  flex:0 0 auto;
}
.cd-num{
  width:26px;
  height:30px;
  border-radius:6px;
  background:rgba(255,255,255,0.06);
  border:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:center;
  font-family:var(--mono);
  font-size:13px;
  font-weight:700;
  color:var(--txt);
  letter-spacing:.04em;
}
.cd-sep{color:var(--txt-3);font-family:var(--mono);font-size:12px;}
.promo-close{
  flex:0 0 auto;
  width:26px;height:26px;
  display:grid;place-items:center;
  border-radius:6px;
  border:1px solid transparent;
  background:transparent;
  color:var(--txt-3);
  font-size:13px;
  cursor:pointer;
  transition:color var(--t),background var(--t),border-color var(--t);
}
.promo-close:hover{color:var(--txt);background:rgba(255,255,255,0.06);border-color:var(--line);}
.promo-bar.is-closed{display:none;}

/* ---------- 头部与导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:50;
  border-bottom:1px solid transparent;
  background:linear-gradient(180deg,rgba(7,11,16,0.72),rgba(7,11,16,0.28));
  transition:background var(--t),border-color var(--t),box-shadow var(--t),backdrop-filter var(--t);
}
.site-header.is-scrolled{
  background:rgba(7,11,16,0.88);
  backdrop-filter:blur(16px) saturate(120%);
  border-bottom-color:rgba(31,224,176,0.18);
  box-shadow:0 10px 34px rgba(0,0,0,0.42);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:20px;
  height:68px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  color:var(--txt);
  text-decoration:none;
}
.brand:hover{color:var(--txt);}
.brand-mark{
  width:34px;height:34px;
  border-radius:10px;
  display:grid;place-items:center;
  font-size:16px;font-weight:800;
  color:#06110E;
  background:linear-gradient(100deg,var(--pri),var(--pri-2));
  box-shadow:0 0 18px rgba(31,224,176,0.38);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:15px;font-weight:700;letter-spacing:.02em;white-space:nowrap;}
.brand-sub{font-size:11px;color:var(--txt-3);letter-spacing:.08em;white-space:nowrap;}
.main-nav{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:8px;
}
.nav-link{
  position:relative;
  padding:8px 12px;
  border-radius:8px;
  font-size:14px;
  font-weight:500;
  color:var(--txt-2);
  white-space:nowrap;
  transition:color var(--t),background var(--t);
}
.nav-link:hover{color:var(--txt);background:rgba(255,255,255,0.045);}
.nav-link.is-active{color:var(--pri);}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:1px;
  height:2px;border-radius:2px;
  background:var(--pri);
  box-shadow:0 0 10px rgba(31,224,176,0.8);
}
.header-actions{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:10px;
}
.icon-btn{
  width:38px;height:38px;
  display:grid;place-items:center;
  border-radius:10px;
  border:1px solid var(--line);
  background:rgba(255,255,255,0.03);
  color:var(--txt-2);
  cursor:pointer;
  transition:color var(--t),border-color var(--t),background var(--t);
}
.icon-btn:hover{color:var(--pri);border-color:rgba(31,224,176,0.45);background:rgba(31,224,176,0.07);}
.menu-toggle{
  display:none;
  width:38px;height:38px;
  place-items:center;
  border-radius:10px;
  border:1px solid var(--line);
  background:rgba(255,255,255,0.03);
  color:var(--txt);
  font-size:15px;
  cursor:pointer;
}
.menu-toggle:hover{border-color:rgba(31,224,176,0.45);color:var(--pri);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 28px;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  font-size:15px;
  font-weight:700;
  line-height:1;
  white-space:nowrap;
  cursor:pointer;
  text-decoration:none;
  transition:transform var(--t),box-shadow var(--t),background var(--t),color var(--t),border-color var(--t);
}
.btn-primary{
  background:linear-gradient(100deg,var(--pri),var(--pri-2));
  color:#06110E;
  box-shadow:0 0 22px rgba(31,224,176,0.35);
}
.btn-primary:hover{color:#06110E;transform:translateY(-2px);box-shadow:0 0 34px rgba(31,224,176,0.55);}
.btn-primary:active{transform:translateY(0);box-shadow:inset 0 2px 10px rgba(0,0,0,0.38);}
.btn-ghost{
  background:transparent;
  color:var(--pri);
  border-color:rgba(255,255,255,0.16);
}
.btn-ghost:hover{color:var(--pri);border-color:var(--pri);background:rgba(31,224,176,0.06);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{height:38px;padding:0 18px;font-size:13.5px;}
.btn-lg{height:54px;padding:0 34px;font-size:16px;}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--pri);
  padding-bottom:2px;
  border-bottom:1px solid transparent;
  transition:border-color var(--t),color var(--t);
}
.link-arrow:hover{color:var(--pri);border-bottom-color:var(--pri);}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:24px;
  padding:0 10px;
  border-radius:999px;
  border:1px solid transparent;
  font-size:12px;
  font-weight:600;
  letter-spacing:.02em;
  white-space:nowrap;
}
.badge-green{color:var(--pri);border-color:rgba(31,224,176,0.4);background:rgba(31,224,176,0.08);}
.badge-purple{color:#B7AAFF;border-color:rgba(123,97,255,0.45);background:rgba(123,97,255,0.12);}
.badge-amber{color:var(--amber);border-color:rgba(255,176,32,0.45);background:rgba(255,176,32,0.08);}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--txt-3);
}
.breadcrumb a{color:var(--txt-2);}
.breadcrumb a:hover{color:var(--pri);}
.breadcrumb .sep{opacity:.55;}
.breadcrumb .current{
  color:var(--pri);
  max-width:46ch;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}

/* ---------- 文章区 ---------- */
.article-hero{padding:34px 0 0;}
.article-shell{padding:26px 0 0;}
.article-head{
  padding-bottom:24px;
  border-bottom:1px solid var(--line);
  margin-bottom:32px;
}
.article-title{
  font-size:clamp(26px,3.2vw,42px);
  line-height:1.28;
  font-weight:800;
  letter-spacing:-.01em;
  margin:16px 0 16px;
  color:var(--txt);
  word-break:break-word;
}
.meta-row{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  font-size:13px;
  color:var(--txt-3);
}
.meta-row .dot{opacity:.45;}
.meta-row .meta-strong{color:var(--txt-2);}
.article-body{
  font-size:16px;
  line-height:1.9;
  color:var(--body-txt);
  word-break:break-word;
}
.article-body p{margin:0 0 20px;}
.article-body > *:first-child{margin-top:0;}
.article-body h2{
  position:relative;
  font-size:26px;
  line-height:1.35;
  font-weight:700;
  color:var(--txt);
  margin:42px 0 18px;
  padding-left:16px;
}
.article-body h2::before{
  content:"";
  position:absolute;
  left:0;top:6px;bottom:6px;
  width:4px;
  border-radius:2px;
  background:linear-gradient(180deg,var(--pri),var(--pri-2));
  box-shadow:0 0 14px rgba(31,224,176,0.55);
}
.article-body h3{font-size:22px;line-height:1.4;font-weight:600;color:var(--txt);margin:32px 0 12px;}
.article-body h4{font-size:18px;line-height:1.45;font-weight:600;color:var(--txt);margin:26px 0 10px;}
.article-body a{color:var(--pri);border-bottom:1px solid rgba(31,224,176,0.35);}
.article-body a:hover{border-bottom-color:var(--pri);}
.article-body ul,.article-body ol{margin:0 0 22px;padding-left:22px;}
.article-body li{margin-bottom:10px;padding-left:2px;}
.article-body ul li::marker{color:var(--pri);}
.article-body ol li::marker{color:var(--pri);font-weight:700;}
.article-body strong{color:var(--txt);font-weight:600;}
.article-body blockquote{
  margin:26px 0;
  padding:18px 22px;
  border-left:3px solid var(--pri);
  border-radius:0 12px 12px 0;
  background:var(--panel);
  backdrop-filter:blur(16px) saturate(120%);
  color:var(--txt-2);
  font-size:15.5px;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:var(--r-img);margin:24px 0;box-shadow:var(--sh-card);}
.article-body figure{margin:24px 0;}
.article-body figcaption{font-size:13px;color:var(--txt-3);text-align:center;margin-top:10px;}
.article-body table{
  width:100%;
  border-collapse:separate;
  border-spacing:0;
  margin:24px 0;
  font-size:14.5px;
  border:1px solid var(--line);
  border-radius:12px;
  overflow:hidden;
}
.article-body thead th{
  background:rgba(31,224,176,0.07);
  color:var(--txt);
  font-weight:600;
  text-align:left;
  padding:12px 16px;
  border-bottom:1px solid var(--line);
}
.article-body td{
  padding:12px 16px;
  border-bottom:1px solid var(--line-soft);
  color:var(--txt-2);
}
.article-body tbody tr:nth-child(even) td{background:rgba(255,255,255,0.02);}
.article-body tbody tr:last-child td{border-bottom:none;}
.article-body code{
  font-family:var(--mono);
  font-size:.88em;
  background:rgba(255,255,255,0.07);
  border:1px solid var(--line);
  border-radius:6px;
  padding:2px 7px;
  color:var(--pri);
}
.article-body pre{
  background:#0A1017;
  border:1px solid var(--line);
  border-radius:12px;
  padding:18px 20px;
  overflow-x:auto;
  margin:24px 0;
}
.article-body pre code{background:none;border:none;padding:0;color:#CBD8E5;font-size:13.5px;line-height:1.7;}
.article-body hr{border:none;border-top:1px solid var(--line);margin:34px 0;}

/* ---------- 返回操作区 ---------- */
.article-actions{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:12px;
  margin-top:44px;
  padding-top:26px;
  border-top:1px solid var(--line);
}
.article-actions .btn{flex:0 0 auto;}

/* ---------- 侧栏目录 ---------- */
.article-side{padding-top:0;}
.toc-card{
  position:sticky;
  top:96px;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:var(--panel);
  backdrop-filter:blur(16px) saturate(120%);
  box-shadow:var(--sh-card);
  padding:20px;
}
.toc-title{
  font-size:12px;
  font-weight:700;
  letter-spacing:.14em;
  color:var(--txt-3);
  margin:0 0 14px;
}
.toc-list{list-style:none;margin:0;padding:0;font-size:14px;}
.toc-list li{margin-bottom:2px;}
.toc-list a{
  display:block;
  padding:7px 10px;
  border-radius:8px;
  border-left:2px solid transparent;
  color:var(--txt-2);
  line-height:1.5;
  transition:color var(--t),background var(--t),border-color var(--t);
}
.toc-list a:hover{color:var(--pri);background:rgba(31,224,176,0.07);}
.toc-list a.is-active{
  color:var(--pri);
  background:rgba(31,224,176,0.09);
  border-left-color:var(--pri);
}
.toc-empty{font-size:13px;color:var(--txt-3);line-height:1.8;margin:0;}

/* ---------- 空态 ---------- */
.empty-state{
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:14px;
  padding:64px 20px;
  border:1px dashed var(--line);
  border-radius:var(--r-card);
  background:rgba(255,255,255,0.015);
  text-align:center;
}
.empty-state .empty-icon{font-size:48px;color:rgba(31,224,176,0.4);}
.empty-state p{font-size:14px;color:var(--txt-3);margin:0;}

/* ---------- 相关推荐 ---------- */
.related-section{padding:76px 0 0;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:28px;
}
.section-head h2{font-size:30px;line-height:1.3;font-weight:700;}
.section-sub{font-size:14px;color:var(--txt-3);margin:8px 0 0;}
.rec-card{
  display:flex;
  flex-direction:column;
  height:100%;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:var(--panel);
  backdrop-filter:blur(16px) saturate(120%);
  box-shadow:var(--sh-card);
  overflow:hidden;
  text-decoration:none;
  color:inherit;
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.rec-card:hover{
  transform:translateY(-4px);
  border-color:rgba(31,224,176,0.35);
  box-shadow:var(--sh-hover);
  color:inherit;
}
.rec-thumb{
  display:block;
  position:relative;
  aspect-ratio:16/9;
  overflow:hidden;
  background:#0B1118;
}
.rec-thumb img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform var(--t);
}
.rec-card:hover .rec-thumb img{transform:scale(1.03);}
.rec-body{
  display:flex;
  flex-direction:column;
  gap:10px;
  padding:20px 22px 22px;
}
.rec-title{
  display:block;
  font-size:17px;
  font-weight:600;
  line-height:1.45;
  color:var(--txt);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.rec-desc{
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  font-size:13.5px;
  line-height:1.75;
  color:var(--txt-3);
}
.rec-more{font-size:13.5px;font-weight:600;color:var(--pri);margin-top:2px;}

/* ---------- CTA 条 ---------- */
.cta-band{padding:76px 0 0;}
.cta-inner{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:26px;
  padding:34px 36px;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:
    linear-gradient(180deg,rgba(31,224,176,0.10),transparent 45%),
    var(--panel);
  backdrop-filter:blur(16px) saturate(120%);
  box-shadow:var(--sh-card);
}
.cta-inner h2{font-size:26px;line-height:1.35;font-weight:700;}
.cta-inner p{font-size:14px;color:var(--txt-3);margin:10px 0 0;}
.cta-actions{display:flex;flex-wrap:wrap;align-items:center;gap:16px;}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:88px;
  padding:56px 0 28px;
  border-top:1px solid var(--line);
  background:rgba(9,14,20,0.62);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.1fr;
  gap:36px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-about{
  font-size:13.5px;
  line-height:1.85;
  color:var(--txt-3);
  margin:0;
  max-width:36ch;
}
.footer-title{
  font-size:13px;
  font-weight:700;
  letter-spacing:.06em;
  color:var(--txt);
  margin:0 0 14px;
}
.footer-links{display:flex;flex-direction:column;gap:10px;font-size:13.5px;}
.footer-links a{color:var(--txt-2);}
.footer-links a:hover{color:var(--pri);}
.footer-contact p{font-size:13.5px;line-height:1.8;color:var(--txt-3);margin:0 0 14px;}
.qr-box{
  width:96px;height:96px;
  border-radius:12px;
  border:1px dashed rgba(31,224,176,0.35);
  background:rgba(31,224,176,0.04);
  display:grid;place-items:center;
  text-align:center;
  font-size:12px;
  line-height:1.5;
  color:var(--txt-3);
}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  margin-top:40px;
  padding-top:20px;
  border-top:1px solid var(--line);
  font-size:12.5px;
  color:var(--txt-3);
}
.footer-bottom a{color:var(--txt-3);}
.footer-bottom a:hover{color:var(--pri);}
.dot-sep{margin:0 8px;opacity:.5;}

/* ---------- 移动端抽屉 ---------- */
.mobile-drawer{
  position:fixed;
  inset:0;
  z-index:80;
  display:none;
  background:rgba(7,11,16,0.97);
  backdrop-filter:blur(18px) saturate(120%);
  padding:20px 20px 28px;
  overflow-y:auto;
}
.mobile-drawer.is-open{display:flex;flex-direction:column;gap:6px;}
.drawer-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  margin-bottom:18px;
}
.drawer-close{
  width:38px;height:38px;
  display:grid;place-items:center;
  border-radius:10px;
  border:1px solid var(--line);
  background:rgba(255,255,255,0.04);
  color:var(--txt);
  cursor:pointer;
}
.drawer-nav{display:flex;flex-direction:column;gap:6px;margin-bottom:22px;}
.drawer-nav a{
  padding:14px 14px;
  border-radius:12px;
  border:1px solid var(--line);
  background:rgba(255,255,255,0.02);
  color:var(--txt-2);
  font-size:15px;
  font-weight:500;
}
.drawer-nav a:hover{border-color:rgba(31,224,176,0.4);color:var(--pri);}
.drawer-cta{width:100%;margin-top:auto;}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .article-side{display:none;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;}
}
@media (max-width:900px){
  .main-nav{display:none;}
  .icon-btn.search-btn{display:none;}
  .menu-toggle{display:grid;}
  .header-inner{height:62px;gap:12px;}
  .promo-text{display:none;}
  .promo-inner{min-height:40px;}
  .brand-name{font-size:14px;}
  .brand-sub{font-size:10.5px;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .grid-margin-x{margin-left:-8px;margin-right:-8px;}
  .grid-margin-x>.cell{padding-left:8px;padding-right:8px;}
  .article-hero{padding:24px 0 0;}
  .article-title{font-size:28px;margin:12px 0 14px;}
  .article-body{font-size:15.5px;line-height:1.85;}
  .article-body h2{font-size:22px;margin:34px 0 14px;}
  .article-body h3{font-size:19px;}
  .related-section,.cta-band{padding-top:56px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px;}
  .section-head h2{font-size:24px;}
  .cta-inner{padding:26px 22px;gap:20px;}
  .cta-inner h2{font-size:21px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .site-footer{margin-top:60px;padding:44px 0 24px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .footer-brand{grid-column:1 / -1;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .article-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .breadcrumb .current{max-width:22ch;}
  .brand-sub{display:none;}
  .cd-num{width:24px;height:28px;font-size:12px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category2 */
/* ===================== 设计变量 ===================== */
:root{
  --bg-0:#070B10;
  --bg-1:#0C1219;
  --bg-2:#080D13;
  --panel:rgba(18,25,34,.55);
  --panel-2:rgba(18,25,34,.78);
  --stroke:rgba(255,255,255,.08);
  --stroke-strong:rgba(255,255,255,.16);
  --line:rgba(255,255,255,.07);
  --pri:#1FE0B0;
  --pri-soft:#7FF0D2;
  --sec:#7B61FF;
  --amber:#FFB020;
  --danger:#FF5C6C;
  --text:#E9F0F7;
  --text-2:#93A3B5;
  --text-3:#5E6C7D;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-xl:20px;
  --r-pill:999px;
  --sh-card:0 8px 28px rgba(0,0,0,.35);
  --sh-hover:0 16px 40px rgba(0,0,0,.45),0 0 0 1px rgba(31,224,176,.35),0 0 26px rgba(31,224,176,.18);
  --glow-pri:0 0 22px rgba(31,224,176,.35);
  --ease:cubic-bezier(.2,.7,.3,1);
  --t:200ms cubic-bezier(.2,.7,.3,1);
  --maxw:1200px;
}

/* ===================== 基础 reset ===================== */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:linear-gradient(180deg,#070B10 0%,#0C1219 55%,#080D13 100%);
  background-attachment:fixed;
  min-height:100vh;
  overflow-x:hidden;
  position:relative;
}
body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:32px 32px;
  -webkit-mask-image:radial-gradient(ellipse at 50% 0%,#000 0%,transparent 62%);
  mask-image:radial-gradient(ellipse at 50% 0%,#000 0%,transparent 62%);
}
body::after{
  content:"";position:fixed;top:-280px;left:50%;transform:translateX(-50%);
  width:920px;height:540px;z-index:0;pointer-events:none;
  background:radial-gradient(circle,rgba(31,224,176,.07) 0%,rgba(123,97,255,.045) 45%,transparent 72%);
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
img{max-width:100%;display:block;border:0;}
a{color:var(--pri);text-decoration:none;transition:color var(--t);}
a:hover{color:var(--pri-soft);}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--pri);outline-offset:2px;}
::selection{background:rgba(31,224,176,.28);color:#fff;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}

/* ===================== 容器 ===================== */
.container{
  width:100%;max-width:var(--maxw);
  margin:0 auto;padding:0 24px;
  position:relative;
}
.site-main{position:relative;z-index:1;}
.site-footer{position:relative;z-index:1;}
.section{padding:88px 0;position:relative;}
.section--tight{padding:72px 0;}
.section--alt{background:linear-gradient(180deg,rgba(12,18,25,0) 0%,rgba(12,18,25,.55) 50%,rgba(12,18,25,0) 100%);}

/* ===================== 按钮 ===================== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:10px;border:1px solid transparent;
  font-size:15px;font-weight:700;letter-spacing:.01em;line-height:1;
  cursor:pointer;white-space:nowrap;text-decoration:none;
  transition:transform var(--t),box-shadow var(--t),background var(--t),border-color var(--t),color var(--t),filter var(--t);
}
.btn-primary{
  background:linear-gradient(100deg,#1FE0B0,#7B61FF);
  color:#06110E;
  box-shadow:var(--glow-pri);
}
.btn-primary:hover{color:#06110E;transform:translateY(-2px);box-shadow:0 0 34px rgba(31,224,176,.55);filter:brightness(1.06);}
.btn-primary:active{transform:translateY(0);box-shadow:inset 0 2px 8px rgba(0,0,0,.32);}
.btn-ghost{
  background:transparent;border-color:var(--stroke-strong);color:var(--pri);
}
.btn-ghost:hover{background:rgba(31,224,176,.06);border-color:var(--pri);color:var(--pri-soft);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);background:rgba(31,224,176,.1);}
.btn-sm{height:38px;padding:0 18px;font-size:13px;border-radius:8px;}
.btn-lg{height:54px;padding:0 32px;font-size:16px;}
.btn.is-disabled,.btn[disabled]{opacity:.45;pointer-events:none;filter:grayscale(.4);}

/* 文字链接 */
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--pri);
  position:relative;padding-bottom:2px;
}
.link-arrow::after{
  content:"";position:absolute;left:0;bottom:0;height:1px;width:0;
  background:linear-gradient(90deg,var(--pri),transparent);
  transition:width var(--t);
}
.link-arrow:hover::after{width:100%;}
.link-arrow i{font-size:11px;transition:transform var(--t);}
.link-arrow:hover i{transform:translateX(3px);}

/* ===================== 标签 / 徽章 ===================== */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  height:24px;padding:0 10px;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.02em;
  border:1px solid transparent;white-space:nowrap;line-height:1;
}
.tag-pri{color:var(--pri-soft);background:rgba(31,224,176,.08);border-color:rgba(31,224,176,.35);}
.tag-sec{color:#B9ABFF;background:rgba(123,97,255,.16);border-color:rgba(123,97,255,.38);}
.tag-amber{color:#FFCB61;background:rgba(255,176,32,.1);border-color:rgba(255,176,32,.4);}
.tag-dot::before{content:"";width:6px;height:6px;border-radius:50%;background:currentColor;box-shadow:0 0 8px currentColor;}

/* ===================== 品牌标识 ===================== */
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;}
.brand-mark{
  width:36px;height:36px;border-radius:11px;flex:0 0 36px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,#1FE0B0,#7B61FF);
  color:#06110E;font-weight:800;font-size:17px;
  box-shadow:0 0 18px rgba(31,224,176,.35);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-name{font-size:17px;font-weight:800;color:#fff;letter-spacing:.01em;}
.brand-sub{font-size:11px;color:var(--text-3);letter-spacing:.06em;margin-top:2px;}

/* ===================== 活动条 ===================== */
.site-header{position:sticky;top:0;z-index:60;}
.activity-bar{
  background:rgba(10,16,22,.88);
  border-bottom:1px solid rgba(31,224,176,.12);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
}
.activity-inner{display:flex;align-items:center;gap:14px;height:42px;}
.activity-label{font-size:13px;font-weight:700;color:var(--pri-soft);letter-spacing:.02em;white-space:nowrap;}
.countdown{display:flex;align-items:center;gap:4px;font-family:"Inter","DIN Alternate",ui-monospace,monospace;}
.cd-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:26px;height:30px;border-radius:6px;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.1);
  color:var(--amber);font-size:13px;font-weight:700;letter-spacing:.04em;
}
.cd-sep{color:var(--text-3);font-size:13px;font-weight:700;}
.activity-tip{font-size:13px;color:var(--text-2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.activity-close{
  margin-left:auto;width:26px;height:26px;border-radius:8px;
  background:transparent;border:1px solid var(--stroke);
  color:var(--text-3);font-size:15px;line-height:1;cursor:pointer;
  display:inline-flex;align-items:center;justify-content:center;
  transition:color var(--t),border-color var(--t),background var(--t);
}
.activity-close:hover{color:var(--pri);border-color:rgba(31,224,176,.4);background:rgba(31,224,176,.08);}

/* ===================== 主导航 ===================== */
.nav-bar{
  background:rgba(8,13,19,.42);
  border-bottom:1px solid transparent;
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  transition:background var(--t),border-color var(--t),box-shadow var(--t),backdrop-filter var(--t);
}
.site-header.is-scrolled .nav-bar{
  background:rgba(9,14,20,.94);
  border-bottom-color:rgba(31,224,176,.18);
  box-shadow:0 10px 32px rgba(0,0,0,.45);
  backdrop-filter:blur(18px) saturate(130%);
  -webkit-backdrop-filter:blur(18px) saturate(130%);
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;height:68px;}
.main-nav{display:flex;align-items:center;gap:28px;}
.nav-link{
  position:relative;font-size:15px;font-weight:600;color:var(--text-2);
  padding:6px 0;white-space:nowrap;transition:color var(--t);
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,#1FE0B0,#7B61FF);
  opacity:0;box-shadow:0 0 10px rgba(31,224,176,.6);
  transition:opacity var(--t);
}
.nav-link:hover{color:var(--text);}
.nav-link.is-active{color:var(--pri);}
.nav-link.is-active::after{opacity:1;}
.nav-actions{display:flex;align-items:center;gap:12px;}
.icon-btn{
  width:40px;height:40px;border-radius:10px;
  background:rgba(255,255,255,.04);border:1px solid var(--stroke);
  color:var(--text-2);font-size:15px;cursor:pointer;
  display:inline-flex;align-items:center;justify-content:center;
  transition:color var(--t),border-color var(--t),background var(--t);
}
.icon-btn:hover{color:var(--pri);border-color:rgba(31,224,176,.4);background:rgba(31,224,176,.08);}
.nav-cta{height:44px;padding:0 22px;font-size:14px;}
.drawer-cta{display:none;}
.menu-toggle{
  display:none;width:44px;height:44px;border-radius:10px;
  background:rgba(255,255,255,.04);border:1px solid var(--stroke);
  cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:5px;
  transition:border-color var(--t),background var(--t);
}
.menu-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text-2);transition:transform var(--t),opacity var(--t),background var(--t);}
.menu-toggle:hover{border-color:rgba(31,224,176,.4);background:rgba(31,224,176,.08);}
.menu-toggle:hover span{background:var(--pri);}
.menu-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.menu-toggle.is-open span:nth-child(2){opacity:0;}
.menu-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* 搜索弹层 */
.search-pop{
  max-height:0;overflow:hidden;
  background:rgba(9,14,20,.98);
  border-bottom:1px solid transparent;
  transition:max-height 240ms var(--ease),border-color var(--t);
}
.search-pop.is-open{max-height:140px;border-bottom-color:rgba(31,224,176,.18);}
.search-form{display:flex;gap:12px;padding:14px 0;}
.search-form input{
  flex:1;height:46px;border-radius:10px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--stroke-strong);
  color:var(--text);padding:0 16px;font-size:15px;
  font-family:inherit;
  transition:border-color var(--t),box-shadow var(--t),background var(--t);
}
.search-form input::placeholder{color:var(--text-3);}
.search-form input:focus{outline:none;border-color:var(--pri);box-shadow:0 0 0 3px rgba(31,224,176,.15);background:rgba(31,224,176,.04);}
.nav-scrim{
  position:fixed;inset:0;z-index:65;
  background:rgba(3,6,10,.62);
  backdrop-filter:blur(3px);
  opacity:0;visibility:hidden;transition:opacity var(--t),visibility var(--t);
}
.nav-scrim.is-open{opacity:1;visibility:visible;}

/* ===================== 面包屑 ===================== */
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-2);flex-wrap:wrap;}
.breadcrumb a{color:var(--text-2);}
.breadcrumb a:hover{color:var(--pri);}
.breadcrumb .sep{color:var(--text-3);}
.breadcrumb .current{color:var(--pri);font-weight:600;}

/* ===================== 分类页宽幅 Banner ===================== */
.page-banner{
  position:relative;overflow:hidden;
  min-height:370px;
  display:flex;align-items:flex-end;
  padding:54px 0 52px;
  border-bottom:1px solid var(--line);
}
.banner-img{
  position:absolute;inset:0;width:100%;height:100%;
  object-fit:cover;object-position:center;
}
.banner-mask{
  position:absolute;inset:0;
  background:
    linear-gradient(180deg,rgba(7,11,16,.62) 0%,rgba(7,11,16,.82) 52%,rgba(7,11,16,.97) 100%),
    linear-gradient(100deg,rgba(31,224,176,.16) 0%,rgba(123,97,255,.10) 46%,transparent 78%);
}
.banner-inner{position:relative;z-index:2;width:100%;}
.banner-title{
  font-size:48px;line-height:1.2;font-weight:800;letter-spacing:-.01em;
  color:#fff;margin:18px 0 14px;max-width:820px;
}
.banner-title em{
  font-style:normal;
  background:linear-gradient(100deg,#1FE0B0,#7B61FF);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.banner-sub{font-size:16px;color:var(--text-2);max-width:680px;line-height:1.8;}
.banner-actions{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-top:26px;}

/* ===================== 区块标题 ===================== */
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:38px;}
.section-eyebrow{
  font-size:12px;font-weight:700;letter-spacing:.18em;color:var(--pri);
  text-transform:uppercase;margin-bottom:10px;font-family:"Inter",ui-monospace,monospace;
}
.section-title{font-size:32px;line-height:1.3;font-weight:700;letter-spacing:-.01em;color:#fff;}
.section-desc{margin-top:10px;color:var(--text-2);font-size:15px;line-height:1.8;max-width:640px;}

/* ===================== 内容卡片 ===================== */
.card-grid{margin-bottom:-24px;}
.grid-padding-x{margin-left:-12px;margin-right:-12px;}
.grid-padding-x > .cell{padding-left:12px;padding-right:12px;margin-bottom:24px;}
.content-card{
  height:100%;display:flex;flex-direction:column;
  background:var(--panel);
  border:1px solid var(--stroke);
  border-radius:var(--r-lg);
  overflow:hidden;
  backdrop-filter:blur(16px) saturate(120%);
  -webkit-backdrop-filter:blur(16px) saturate(120%);
  box-shadow:var(--sh-card);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
  position:relative;
}
.content-card::before{
  content:"";position:absolute;inset:0 0 auto 0;height:46%;
  background:linear-gradient(180deg,rgba(31,224,176,.10),transparent 78%);
  pointer-events:none;
}
.content-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--sh-hover);
  border-color:rgba(31,224,176,.35);
}
.card-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:#0d141c;}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform 240ms var(--ease);}
.content-card:hover .card-media img{transform:scale(1.03);}
.card-badge{position:absolute;top:12px;left:12px;z-index:2;}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;position:relative;z-index:1;}
.card-title{
  font-size:20px;line-height:1.35;font-weight:600;color:#fff;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-text{
  font-size:14px;line-height:1.8;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding-top:14px;border-top:1px solid var(--line);
  font-size:12.5px;color:var(--text-3);
}
.card-meta span{display:inline-flex;align-items:center;gap:6px;}

/* ===================== 三步流程 ===================== */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.step{
  position:relative;
  padding:28px 24px 26px;
  border-radius:var(--r-lg);
  background:var(--panel);
  border:1px solid var(--stroke);
  backdrop-filter:blur(16px) saturate(120%);
  -webkit-backdrop-filter:blur(16px) saturate(120%);
  transition:transform var(--t),border-color var(--t),box-shadow var(--t);
}
.step:hover{transform:translateY(-4px);border-color:rgba(31,224,176,.32);box-shadow:var(--sh-hover);}
.step-no{
  display:inline-flex;align-items:center;justify-content:center;
  height:26px;padding:0 12px;border-radius:var(--r-pill);
  background:linear-gradient(100deg,rgba(31,224,176,.2),rgba(123,97,255,.2));
  border:1px solid rgba(31,224,176,.32);
  color:var(--pri-soft);font-size:12px;font-weight:700;letter-spacing:.1em;
  font-family:"Inter",ui-monospace,monospace;margin-bottom:16px;
}
.step h3{font-size:19px;line-height:1.35;font-weight:600;color:#fff;margin-bottom:8px;}
.step p{font-size:14.5px;line-height:1.8;color:var(--text-2);}
.step-line{
  position:absolute;left:-12px;top:44px;width:24px;height:2px;
  background:linear-gradient(90deg,rgba(31,224,176,.5),transparent);
  display:none;
}

/* ===================== 规格 / 数据卡 ===================== */
.spec-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.spec{
  padding:28px 24px;
  border-radius:var(--r-lg);
  background:rgba(18,25,34,.45);
  border:1px solid var(--stroke);
  transition:transform var(--t),border-color var(--t),box-shadow var(--t),background var(--t);
}
.spec:hover{
  transform:translateY(-4px);
  border-color:rgba(31,224,176,.32);
  box-shadow:var(--sh-hover);
  background:rgba(18,25,34,.66);
}
.spec-num{
  font-family:"Inter","DIN Alternate",ui-monospace,monospace;
  font-size:34px;font-weight:800;line-height:1.15;letter-spacing:.02em;
  background:linear-gradient(100deg,#1FE0B0,#7B61FF);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.spec-label{font-size:14px;font-weight:600;color:#fff;margin-top:10px;}
.spec-desc{font-size:13.5px;line-height:1.75;color:var(--text-2);margin-top:8px;}
.spec-tag{margin-top:16px;}

/* ===================== FAQ ===================== */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:900px;}
.faq-item{
  border:1px solid var(--stroke);
  border-radius:var(--r-md);
  background:rgba(18,25,34,.45);
  overflow:hidden;
  transition:border-color var(--t),background var(--t);
}
.faq-item:hover{border-color:rgba(31,224,176,.28);}
.faq-item.is-open{border-color:rgba(31,224,176,.38);background:rgba(18,25,34,.7);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:18px 20px;background:none;border:0;
  color:var(--text);font-size:16px;font-weight:600;text-align:left;cursor:pointer;
  font-family:inherit;line-height:1.55;
  transition:color var(--t);
}
.faq-q:hover{color:var(--pri-soft);}
.faq-icon{
  flex:0 0 24px;width:24px;height:24px;border-radius:8px;
  border:1px solid var(--stroke-strong);
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--pri);font-size:14px;font-weight:700;line-height:1;
  transition:transform var(--t),border-color var(--t),background var(--t);
}
.faq-q[aria-expanded="true"] .faq-icon{transform:rotate(45deg);border-color:rgba(31,224,176,.5);background:rgba(31,224,176,.1);}
.faq-a{padding:0 20px 20px;color:var(--text-2);font-size:15px;line-height:1.85;}
.faq-a[hidden]{display:none;}

/* ===================== CTA 条 ===================== */
.cta-band{
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  padding:40px 44px;
  border-radius:var(--r-xl);
  border:1px solid rgba(31,224,176,.22);
  background:
    linear-gradient(120deg,rgba(31,224,176,.13) 0%,rgba(123,97,255,.15) 62%,rgba(18,25,34,.5) 100%);
  backdrop-filter:blur(16px) saturate(120%);
  -webkit-backdrop-filter:blur(16px) saturate(120%);
  box-shadow:0 16px 46px rgba(0,0,0,.4);
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;top:-90px;right:-60px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(31,224,176,.18),transparent 68%);
  pointer-events:none;
}
.cta-copy{position:relative;z-index:1;max-width:640px;}
.cta-title{font-size:26px;line-height:1.35;font-weight:700;color:#fff;}
.cta-desc{margin-top:10px;font-size:15px;line-height:1.8;color:var(--text-2);}
.cta-actions{position:relative;z-index:1;display:flex;align-items:center;gap:18px;flex-wrap:wrap;}

/* ===================== 页脚 ===================== */
.site-footer{
  border-top:1px solid var(--line);
  background:rgba(8,13,19,.82);
  padding:64px 0 0;
  margin-top:24px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:44px;}
.footer-about{margin-top:16px;font-size:14px;line-height:1.85;color:var(--text-2);max-width:380px;}
.footer-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.02em;}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{color:var(--text-2);font-size:14px;transition:color var(--t),transform var(--t);display:inline-block;}
.footer-links a:hover{color:var(--pri);transform:translateX(3px);}
.footer-contact p{font-size:14px;line-height:1.8;color:var(--text-2);}
.qr-box{
  width:96px;height:96px;margin-top:16px;border-radius:var(--r-md);
  border:1px dashed rgba(31,224,176,.35);
  background:rgba(31,224,176,.05);
  display:grid;place-items:center;text-align:center;
  font-size:12px;line-height:1.55;color:var(--text-3);
}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:48px;padding:20px 0 24px;
  border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}
.footer-bottom a{color:var(--text-3);}
.footer-bottom a:hover{color:var(--pri);}
.dot-sep{margin:0 8px;color:var(--text-3);opacity:.6;}

/* ===================== 响应式 ===================== */
@media (max-width:1024px){
  .section{padding:72px 0;}
  .section-title{font-size:28px;}
  .banner-title{font-size:38px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .spec-grid,.steps{grid-template-columns:1fr 1fr;}
}
@media (max-width:900px){
  .menu-toggle{display:flex;}
  .nav-cta{display:none;}
  .main-nav{
    position:fixed;top:0;right:0;
    width:min(84vw,320px);height:100vh;
    display:flex;flex-direction:column;align-items:stretch;gap:0;
    background:rgba(9,14,20,.98);
    backdrop-filter:blur(18px) saturate(130%);
    -webkit-backdrop-filter:blur(18px) saturate(130%);
    padding:96px 22px 26px;
    border-left:1px solid var(--stroke);
    transform:translateX(105%);
    transition:transform 240ms var(--ease);
    z-index:70;overflow-y:auto;
  }
  .main-nav.is-open{transform:translateX(0);}
  .main-nav .nav-link{
    padding:14px 4px;font-size:16px;border-bottom:1px solid var(--line);
  }
  .main-nav .nav-link::after{display:none;}
  .main-nav .nav-link.is-active{color:var(--pri);}
  .drawer-cta{
    display:inline-flex;margin-top:auto;width:100%;height:48px;
  }
  .activity-tip,.activity-label{display:none;}
  .activity-inner{gap:10px;}
}
@media (max-width:768px){
  .container{padding:0 16px;}
  .section{padding:56px 0;}
  .section--tight{padding:48px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:16px;margin-bottom:28px;}
  .section-title{font-size:24px;}
  .banner-title{font-size:30px;margin:14px 0 12px;}
  .banner-sub{font-size:15px;}
  .page-banner{min-height:310px;padding:38px 0 40px;}
  .steps,.spec-grid{grid-template-columns:1fr;}
  .cta-band{flex-direction:column;align-items:stretch;padding:28px 22px;gap:22px;}
  .cta-title{font-size:21px;}
  .cta-actions{flex-direction:column;align-items:stretch;gap:12px;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .card-title{font-size:18px;}
}
@media (max-width:520px){
  .banner-title{font-size:27px;}
  .nav-wrap{height:62px;}
  .brand-name{font-size:15.5px;}
  .brand-sub{font-size:10.5px;}
  .search-form{flex-direction:column;}
  .search-form .btn{width:100%;}
  .search-pop.is-open{max-height:200px;}
  .card-body{padding:16px 16px 18px;}
  .step{padding:22px 18px;}
  .spec{padding:22px 18px;}
  .spec-num{font-size:28px;}
  .faq-q{font-size:15px;padding:16px;}
  .faq-a{padding:0 16px 18px;font-size:14px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
  .content-card:hover,.step:hover,.spec:hover,.btn-primary:hover,.btn-ghost:hover{transform:none;}
}

/* roulang page: category3 */
:root{
  --bg-0:#070B10;
  --bg-1:#0C1219;
  --panel:rgba(18,25,34,.55);
  --panel-solid:rgba(13,19,26,.92);
  --line:rgba(255,255,255,.08);
  --line-soft:rgba(255,255,255,.07);
  --primary:#1FE0B0;
  --primary-2:#7B61FF;
  --amber:#FFB020;
  --danger:#FF5C6C;
  --text:#E9F0F7;
  --muted:#93A3B5;
  --dim:#5E6C7D;
  --radius-card:16px;
  --radius-btn:10px;
  --shadow-card:0 8px 28px rgba(0,0,0,.35);
  --shadow-hover:0 16px 40px rgba(0,0,0,.45),0 0 0 1px rgba(31,224,176,.35),0 0 26px rgba(31,224,176,.18);
  --ease:cubic-bezier(.2,.7,.3,1);
  --dur:200ms;
  --mono:"Inter","DIN Alternate",ui-monospace,SFMono-Regular,Menlo,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;padding:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;line-height:1.75;font-weight:400;
  color:var(--text);
  background:linear-gradient(180deg,var(--bg-0) 0%,var(--bg-1) 100%);
  background-attachment:fixed;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background-image:
    radial-gradient(620px 340px at 50% -90px, rgba(31,224,176,.10), transparent 72%),
    linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
  background-size:auto,32px 32px,32px 32px;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--primary);text-decoration:none;transition:color var(--dur) var(--ease);}
a:hover{color:var(--primary);}
p{margin:0 0 16px;}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--text);letter-spacing:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;position:relative;z-index:1;}
.site-header,.activity-bar,.site-footer,main{position:relative;z-index:1;}

/* ============ 活动条 ============ */
.activity-bar{
  background:rgba(10,14,19,.9);
  border-bottom:1px solid rgba(31,224,176,.12);
  font-size:13px;
  transition:opacity .2s var(--ease);
}
.activity-bar.is-hidden{display:none;}
.activity-inner{display:flex;align-items:center;gap:14px;min-height:42px;}
.countdown{display:flex;align-items:center;gap:3px;}
.countdown .num{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:26px;height:30px;padding:0 4px;border-radius:6px;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.08);
  font-family:var(--mono);font-size:14px;font-weight:700;color:var(--amber);
  letter-spacing:.04em;
}
.countdown .colon{color:var(--dim);font-family:var(--mono);font-size:13px;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 11px;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.02em;line-height:1.7;
  border:1px solid rgba(255,255,255,.12);
  background:rgba(255,255,255,.04);
  color:var(--muted);
  white-space:nowrap;
}
.badge-amber{border-color:rgba(255,176,32,.45);background:rgba(255,176,32,.08);color:var(--amber);}
.badge-primary{border-color:rgba(31,224,176,.42);background:rgba(31,224,176,.08);color:var(--primary);}
.badge-violet{border-color:rgba(123,97,255,.45);background:rgba(123,97,255,.10);color:#A796FF;}
.badge-danger{border-color:rgba(255,92,108,.42);background:rgba(255,92,108,.08);color:var(--danger);}
.activity-tip{color:var(--muted);font-size:13px;}
.activity-close{
  margin-left:auto;width:26px;height:26px;border-radius:8px;
  background:transparent;border:1px solid rgba(255,255,255,.10);
  color:var(--dim);cursor:pointer;display:inline-flex;align-items:center;justify-content:center;
  font-size:14px;line-height:1;transition:all var(--dur) var(--ease);
}
.activity-close:hover{color:var(--text);border-color:rgba(255,255,255,.22);background:rgba(255,255,255,.05);}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background var(--dur) var(--ease),border-color var(--dur) var(--ease),backdrop-filter var(--dur) var(--ease);
}
.site-header.is-scrolled{
  background:rgba(8,12,17,.88);
  backdrop-filter:blur(14px) saturate(130%);
  -webkit-backdrop-filter:blur(14px) saturate(130%);
  border-bottom:1px solid rgba(31,224,176,.18);
}
.header-inner{display:flex;align-items:center;gap:18px;min-height:68px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;flex:0 0 auto;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(100deg,var(--primary),var(--primary-2));
  color:#06110E;font-weight:800;font-size:17px;
  box-shadow:0 0 18px rgba(31,224,176,.35);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-name{font-size:17px;font-weight:800;color:var(--text);letter-spacing:.02em;white-space:nowrap;}
.brand-sub{font-size:11px;color:var(--dim);letter-spacing:.08em;margin-top:2px;white-space:nowrap;}
.main-nav{display:none;align-items:center;gap:2px;}
.nav-link{
  position:relative;display:inline-block;
  padding:9px 14px;border-radius:8px;
  color:var(--muted);font-size:15px;font-weight:500;
  transition:color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05);}
.nav-link.is-active{color:var(--primary);font-weight:600;}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),var(--primary-2));
  box-shadow:0 0 12px rgba(31,224,176,.75);
}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:10px;}
.icon-btn{
  width:40px;height:40px;border-radius:10px;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  color:var(--muted);cursor:pointer;transition:all var(--dur) var(--ease);
}
.icon-btn:hover{color:var(--primary);border-color:rgba(31,224,176,.45);background:rgba(31,224,176,.08);}
.nav-toggle{display:inline-flex;}
.nav-toggle .bar{display:block;width:16px;height:2px;border-radius:2px;background:currentColor;position:relative;}
.nav-toggle .bar::before,.nav-toggle .bar::after{
  content:"";position:absolute;left:0;width:16px;height:2px;border-radius:2px;background:currentColor;transition:transform var(--dur) var(--ease);
}
.nav-toggle .bar::before{top:-5px;}
.nav-toggle .bar::after{top:5px;}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:700;line-height:1;
  border:1px solid transparent;cursor:pointer;text-decoration:none;
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),filter var(--dur) var(--ease),background var(--dur) var(--ease),border-color var(--dur) var(--ease),color var(--dur) var(--ease);
}
.btn-primary{
  background:linear-gradient(100deg,var(--primary),var(--primary-2));
  color:#06110E;
  box-shadow:0 0 22px rgba(31,224,176,.35);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 34px rgba(31,224,176,.55);filter:brightness(1.06);color:#06110E;}
.btn-primary:active{transform:translateY(0);box-shadow:inset 0 2px 10px rgba(0,0,0,.4);}
.btn-ghost{
  background:transparent;border-color:rgba(255,255,255,.16);color:var(--text);
}
.btn-ghost:hover{border-color:var(--primary);background:rgba(31,224,176,.06);color:var(--primary);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:9px;}
.btn-lg{height:54px;padding:0 34px;font-size:16px;}
.btn-block{width:100%;}
.link-text{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--primary);font-size:14px;font-weight:600;
  border-bottom:1px solid transparent;transition:border-color var(--dur) var(--ease),color var(--dur) var(--ease);
}
.link-text:hover{border-bottom-color:rgba(31,224,176,.55);}

/* 搜索抽屉 */
.search-drawer{
  display:none;border-top:1px solid var(--line);
  background:rgba(8,12,17,.94);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.search-drawer.is-open{display:block;}
.search-form{display:flex;gap:10px;padding:16px 0;flex-wrap:wrap;}
.field-label{display:block;font-size:13px;color:var(--muted);margin-bottom:6px;}
.input{
  height:46px;width:100%;
  padding:0 14px;border-radius:10px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  color:var(--text);font-size:15px;
  transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease),background var(--dur) var(--ease);
  appearance:none;
}
.input::placeholder{color:var(--dim);}
.input:focus{
  outline:none;border-color:var(--primary);
  background:rgba(31,224,176,.04);
  box-shadow:0 0 0 3px rgba(31,224,176,.15);
}
.search-form .input{flex:1 1 240px;}

/* 移动菜单 */
.menu-backdrop{
  position:fixed;inset:0;background:rgba(4,7,11,.66);z-index:110;
  opacity:0;visibility:hidden;transition:opacity .22s var(--ease),visibility .22s var(--ease);
}
.menu-backdrop.is-open{opacity:1;visibility:visible;}
.mobile-menu{
  position:fixed;top:0;right:0;z-index:120;
  width:84%;max-width:340px;height:100vh;
  background:var(--panel-solid);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  border-left:1px solid var(--line);
  transform:translateX(102%);
  transition:transform .26s var(--ease);
  display:flex;flex-direction:column;
  padding:22px 20px 26px;overflow-y:auto;
}
.mobile-menu.is-open{transform:translateX(0);}
.mobile-menu-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px;}
.mobile-nav{display:flex;flex-direction:column;gap:6px;}
.mobile-nav a{
  display:block;padding:13px 14px;border-radius:10px;
  color:var(--muted);font-size:16px;font-weight:500;
  border:1px solid transparent;
}
.mobile-nav a:hover{color:var(--text);background:rgba(255,255,255,.05);}
.mobile-nav a.is-active{color:var(--primary);background:rgba(31,224,176,.08);border-color:rgba(31,224,176,.28);}
.mobile-menu-foot{margin-top:auto;padding-top:22px;display:flex;flex-direction:column;gap:10px;}

/* ============ 页面头（Hero） ============ */
.page-hero{position:relative;padding:64px 0 52px;text-align:center;overflow:hidden;}
.page-hero::before{
  content:"";position:absolute;inset:0;z-index:0;
  background-image:linear-gradient(180deg,rgba(7,11,16,.76),rgba(7,11,16,.93) 62%,#070B10 100%),url("/assets/images/backpic/back-2.webp");
  background-position:center;
  background-size:cover;
  background-repeat:no-repeat;
  opacity:.92;
}
.page-hero>.container{position:relative;z-index:1;}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--muted);margin-bottom:26px;justify-content:center;
}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .sep{color:var(--dim);}
.breadcrumb .current{color:var(--primary);font-weight:600;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 14px;border-radius:999px;margin-bottom:20px;
  font-size:12px;font-weight:600;letter-spacing:.04em;
  color:var(--primary);
  border:1px solid rgba(31,224,176,.32);
  background:rgba(31,224,176,.07);
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px rgba(31,224,176,.9);}
h1.page-title{
  font-size:46px;line-height:1.2;font-weight:800;
  letter-spacing:.01em;margin:0 auto 20px;max-width:900px;
}
h1.page-title .hl{
  background:linear-gradient(100deg,var(--primary),var(--primary-2));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.page-desc{
  max-width:760px;margin:0 auto 26px;
  font-size:17px;line-height:1.8;color:var(--muted);
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;}

/* ============ 通用板块 ============ */
.section{padding:88px 0;}
.section-tight{padding:64px 0;}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;gap:14px;margin-bottom:34px;}
.section-head.center{flex-direction:column;align-items:center;text-align:center;}
.section-title{font-size:32px;line-height:1.3;font-weight:700;}
.section-sub{font-size:15px;color:var(--muted);margin:8px 0 0;}
.section-head .link-text{margin-left:auto;}

/* ============ 双列大图卡片 ============ */
.gallery-grid{margin:0 -12px;}
.gallery-grid>.cell{padding:0 12px;margin-bottom:24px;}
.gallery-card{
  position:relative;display:block;border-radius:var(--radius-card);
  overflow:hidden;border:1px solid var(--line);
  background:var(--panel);
  box-shadow:var(--shadow-card);
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
  height:100%;
}
.gallery-card:hover,.gallery-card:focus-visible{
  transform:translateY(-4px);
  box-shadow:var(--shadow-hover);
  border-color:rgba(31,224,176,.35);
}
.gallery-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:#0A1017;}
.gallery-media img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .34s var(--ease);
}
.gallery-card:hover .gallery-media img{transform:scale(1.03);}
.gallery-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(4,7,11,.05) 0%,rgba(4,7,11,.35) 52%,rgba(4,7,11,.92) 100%);
}
.corner-tag{
  position:absolute;top:14px;left:14px;z-index:2;
  padding:4px 12px;border-radius:999px;
  font-size:12px;font-weight:700;letter-spacing:.02em;
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
}
.corner-tag.amber{color:var(--amber);border:1px solid rgba(255,176,32,.5);background:rgba(255,176,32,.14);}
.corner-tag.violet{color:#B7A9FF;border:1px solid rgba(123,97,255,.5);background:rgba(123,97,255,.16);}
.corner-tag.teal{color:var(--primary);border:1px solid rgba(31,224,176,.5);background:rgba(31,224,176,.14);}
.gallery-caption{
  position:absolute;left:0;right:0;bottom:0;z-index:2;
  padding:20px 22px;
}
.gallery-caption h3{font-size:22px;line-height:1.35;font-weight:600;margin-bottom:6px;}
.gallery-caption p{font-size:14px;color:var(--muted);margin:0;line-height:1.6;}
.gallery-foot{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:14px 22px 18px;border-top:1px solid var(--line-soft);
  font-size:13px;color:var(--dim);
}
.gallery-foot .meta{font-family:var(--mono);letter-spacing:.03em;color:var(--muted);}
.gallery-foot .arrow{color:var(--primary);font-weight:700;transition:transform var(--dur) var(--ease);}
.gallery-card:hover .gallery-foot .arrow{transform:translateX(4px);}

/* ============ 面板通用 ============ */
.panel{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  backdrop-filter:blur(16px) saturate(120%);
  -webkit-backdrop-filter:blur(16px) saturate(120%);
  background-image:linear-gradient(180deg,rgba(31,224,176,.10),transparent 45%);
  box-shadow:var(--shadow-card);
}

/* ============ 规格 / 对照区 ============ */
.matrix-grid{margin:0 -12px;}
.matrix-grid>.cell{padding:0 12px;margin-bottom:24px;}
.spec-card{padding:26px;}
.spec-card h3{font-size:20px;margin-bottom:6px;}
.spec-card .spec-note{font-size:13px;color:var(--dim);margin:0 0 18px;}
.spec-row{
  display:flex;align-items:baseline;justify-content:space-between;gap:16px;
  padding:13px 0;border-bottom:1px dashed var(--line-soft);
}
.spec-row:last-child{border-bottom:0;padding-bottom:0;}
.spec-key{font-size:14px;color:var(--muted);flex:0 0 auto;}
.spec-val{font-size:14px;font-weight:600;color:var(--text);font-family:var(--mono);text-align:right;letter-spacing:.02em;}
.spec-val.ok{color:var(--primary);}

.table-card{padding:26px;}
.table-card h3{font-size:20px;margin-bottom:6px;}
.table-card .spec-note{font-size:13px;color:var(--dim);margin:0 0 18px;}
.table-wrap{width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;border-radius:14px;}
.data-table{
  width:100%;min-width:520px;border-collapse:separate;border-spacing:0;
  border:1px solid var(--line);border-radius:14px;overflow:hidden;
  font-size:14px;background:rgba(10,15,21,.5);
}
.data-table thead th{
  text-align:left;padding:14px 16px;
  font-size:13px;font-weight:700;letter-spacing:.02em;
  color:var(--primary);
  background:rgba(31,224,176,.08);
  border-bottom:1px solid rgba(31,224,176,.2);
  white-space:nowrap;
}
.data-table tbody td{
  padding:14px 16px;color:var(--muted);
  border-bottom:1px solid var(--line-soft);
  vertical-align:top;line-height:1.7;
}
.data-table tbody tr:nth-child(even) td{background:rgba(255,255,255,.02);}
.data-table tbody tr:hover td{background:rgba(31,224,176,.05);color:var(--text);}
.data-table tbody tr:last-child td{border-bottom:0;}
.data-table tbody td:first-child{color:var(--text);font-weight:600;white-space:nowrap;}
.data-table .tick{color:var(--primary);font-weight:700;}

/* ============ 顺序步骤（横向） ============ */
.steps{display:flex;flex-wrap:wrap;gap:16px;}
.step{
  flex:1 1 240px;display:flex;gap:14px;align-items:flex-start;
  padding:20px;border-radius:14px;
  background:rgba(255,255,255,.03);
  border:1px solid var(--line);
  transition:border-color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.step:hover{border-color:rgba(31,224,176,.32);background:rgba(31,224,176,.05);}
.step-num{
  flex:0 0 auto;width:34px;height:34px;border-radius:10px;
  display:inline-flex;align-items:center;justify-content:center;
  font-family:var(--mono);font-size:14px;font-weight:800;color:#06110E;
  background:linear-gradient(100deg,var(--primary),var(--primary-2));
  box-shadow:0 0 16px rgba(31,224,176,.3);
}
.step h4{font-size:16px;margin-bottom:4px;}
.step p{margin:0;font-size:13px;color:var(--muted);line-height:1.65;}

/* ============ FAQ ============ */
.faq-list{max-width:900px;margin:0 auto;}
.faq-item{
  border:1px solid var(--line);border-radius:14px;
  background:var(--panel);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  margin-bottom:12px;overflow:hidden;
  transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.faq-item:hover{border-color:rgba(31,224,176,.28);}
.faq-item.is-open{border-color:rgba(31,224,176,.4);box-shadow:0 0 0 1px rgba(31,224,176,.16);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;background:transparent;border:0;cursor:pointer;
  color:var(--text);font-size:16px;font-weight:600;text-align:left;line-height:1.5;
}
.faq-q:hover{color:var(--primary);}
.faq-q .chev{flex:0 0 auto;color:var(--primary);transition:transform .24s var(--ease);}
.faq-item.is-open .chev{transform:rotate(180deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s var(--ease);}
.faq-a-inner{padding:0 20px 20px;font-size:15px;line-height:1.85;color:var(--muted);}
.faq-a-inner strong{color:var(--text);font-weight:600;}

/* ============ CTA 条 ============ */
.cta-band{
  display:flex;flex-wrap:wrap;align-items:center;gap:26px;
  padding:36px 38px;border-radius:20px;
  border:1px solid rgba(31,224,176,.26);
  background-image:linear-gradient(100deg,rgba(31,224,176,.12),rgba(123,97,255,.12)),linear-gradient(180deg,rgba(18,25,34,.7),rgba(18,25,34,.7));
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  box-shadow:0 20px 50px rgba(0,0,0,.4);
}
.cta-band h2{font-size:26px;line-height:1.35;margin-bottom:8px;}
.cta-band p{margin:0;color:var(--muted);font-size:15px;}
.cta-actions{margin-left:auto;display:flex;flex-wrap:wrap;align-items:center;gap:16px;}
.back-bar{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  margin-top:26px;padding-top:22px;border-top:1px solid var(--line-soft);
  font-size:14px;color:var(--dim);
}
.back-bar .divider{width:1px;height:14px;background:var(--line);}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:40px;
  border-top:1px solid var(--line);
  background:rgba(7,11,16,.72);
  padding:64px 0 26px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-about{font-size:14px;line-height:1.8;color:var(--dim);margin:0;max-width:340px;}
.footer-title{font-size:14px;font-weight:700;color:var(--text);margin:0 0 14px;letter-spacing:.02em;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:var(--muted);}
.footer-links a:hover{color:var(--primary);}
.footer-contact p{font-size:14px;color:var(--dim);line-height:1.8;margin:0 0 14px;}
.qr-box{
  width:104px;height:104px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;text-align:center;
  font-size:12px;line-height:1.5;color:var(--dim);
  border:1px dashed rgba(255,255,255,.16);
  background:rgba(255,255,255,.03);
}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid var(--line-soft);
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;
  font-size:13px;color:var(--dim);
}
.footer-bottom a{color:var(--muted);}
.footer-bottom a:hover{color:var(--primary);}
.footer-bottom .dot-sep{color:var(--line);margin:0 4px;}
.footer-bottom .right{margin-left:auto;}

/* ============ 响应式 ============ */
@media screen and (min-width:1024px){
  .main-nav{display:flex;}
  .nav-toggle{display:none;}
}
@media screen and (max-width:1023px){
  .header-actions .btn-sm{display:none;}
  h1.page-title{font-size:38px;}
  .section{padding:64px 0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media screen and (max-width:768px){
  .container{padding:0 16px;}
  .activity-tip{display:none;}
  .page-hero{padding:44px 0 38px;}
  h1.page-title{font-size:30px;line-height:1.3;}
  .page-desc{font-size:15px;}
  .section{padding:56px 0;}
  .section-title{font-size:24px;}
  .section-sub{font-size:14px;}
  .gallery-caption{padding:16px;}
  .gallery-caption h3{font-size:18px;}
  .gallery-caption p{font-size:13px;}
  .cta-band{padding:26px 22px;}
  .cta-actions{margin-left:0;width:100%;}
  .cta-actions .btn{width:100%;}
  .steps{flex-direction:column;}
  .step{flex:1 1 auto;width:100%;}
  .spec-card,.table-card{padding:20px;}
  .faq-q{font-size:15px;padding:16px;}
  .faq-a-inner{padding:0 16px 18px;font-size:14px;}
}
@media screen and (max-width:520px){
  .brand-sub{display:none;}
  .brand-name{font-size:15px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .gallery-grid{margin:0;}
  .gallery-grid>.cell{padding:0;margin-bottom:18px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .footer-bottom .right{margin-left:0;}
  .btn{height:46px;padding:0 22px;font-size:14px;}
  .btn-lg{height:50px;padding:0 26px;font-size:15px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important;}
  .gallery-card:hover{transform:none;}
  .gallery-card:hover .gallery-media img{transform:none;}
}