/* roulang page: index */
/* ============ 设计变量 ============ */
:root{
  --bg-0:#05080F;
  --bg-1:#0A111D;
  --bg-2:#0F1A2B;
  --glass:rgba(15,26,43,.72);
  --glass-soft:rgba(15,26,43,.5);
  --line:rgba(160,200,230,.12);
  --line-strong:rgba(160,200,230,.2);
  --primary:#2DE2E6;
  --primary-strong:#0FB8C9;
  --accent:#FFB547;
  --danger:#FF5C7A;
  --text:#F3F8FF;
  --text-2:#B6C4D8;
  --text-3:#7C8CA3;
  --r-lg:20px;
  --r-md:16px;
  --r-sm:14px;
  --r-tag:8px;
  --shadow:0 12px 32px rgba(0,0,0,.28);
  --shadow-hover:0 18px 48px rgba(0,0,0,.38),0 0 0 1px rgba(45,226,230,.24);
  --ease:180ms ease;
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  --mono:"DIN Alternate",Bahnschrift,"SFMono-Regular",Consolas,"Liberation Mono",monospace;
  --nav-h:72px;
}

/* ============ 基础重置 ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  padding-top:var(--nav-h);
  font-family:var(--font);
  font-size:17px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg-0);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background:
    radial-gradient(900px 620px at 12% -8%,rgba(45,226,230,.15),transparent 62%),
    radial-gradient(720px 520px at 88% 4%,rgba(255,181,71,.07),transparent 65%),
    radial-gradient(900px 700px at 50% 100%,rgba(15,184,201,.08),transparent 70%);
}
body::after{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;opacity:.75;
  background-image:
    linear-gradient(rgba(160,200,230,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(160,200,230,.05) 1px,transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:radial-gradient(circle at 50% 0%,#000 0%,transparent 72%);
  mask-image:radial-gradient(circle at 50% 0%,#000 0%,transparent 72%);
}
img{max-width:100%;display:block;border:0}
a{color:var(--primary);text-decoration:none;transition:color var(--ease)}
a:hover{color:#7BF3F5}
p{margin:0 0 18px}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25;color:var(--text)}
::selection{background:rgba(45,226,230,.28);color:#fff}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:4px}

/* 覆盖 Foundation 默认观感 */
body, .button, button, input, textarea, select{font-family:var(--font)}
a.button, .button{background:none;color:inherit;padding:0;margin:0;border-radius:0}
.reveal{}
[type=text],[type=email],[type=password],[type=tel],textarea{box-shadow:none}

/* ============ 容器 ============ */
.wrap{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
  position:relative;
  z-index:2;
}
.wrap-wide{max-width:1320px}

/* ============ 头部导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:200;
  background:rgba(5,8,15,.72);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  height:var(--nav-h);
  max-width:1320px;
  display:flex;
  align-items:center;
  gap:26px;
}
.logo{
  display:inline-flex;
  align-items:baseline;
  font-size:18px;
  font-weight:800;
  color:#fff;
  letter-spacing:.01em;
  white-space:nowrap;
  flex-shrink:0;
}
.logo em{font-style:normal;color:var(--primary);font-family:var(--mono);font-weight:800;letter-spacing:.03em}
.logo:hover{color:#fff}
.nav-main{display:flex;align-items:center;gap:2px}
.nav-main a{
  position:relative;
  padding:9px 14px;
  font-size:15px;
  color:var(--text-2);
  white-space:nowrap;
}
.nav-main a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:1px;height:2px;
  background:var(--primary);border-radius:2px;
  transform:scaleX(0);transform-origin:left;
  transition:transform var(--ease);
  box-shadow:0 0 12px rgba(45,226,230,.7);
}
.nav-main a:hover{color:#fff}
.nav-main a:hover::after{transform:scaleX(1)}
.nav-main a.active{color:#fff;font-weight:600}
.nav-main a.active::after{transform:scaleX(1)}
.header-right{margin-left:auto;display:flex;align-items:center;gap:10px;flex-shrink:0}
.status-pill{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;color:var(--text-2);
  border:1px solid var(--line);border-radius:999px;
  padding:5px 11px;background:rgba(15,26,43,.6);
  white-space:nowrap;
}
.dot{
  width:7px;height:7px;border-radius:50%;background:var(--danger);
  box-shadow:0 0 0 0 rgba(255,92,122,.55);
  animation:pulse 2.2s infinite;
}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(255,92,122,.5)}
  70%{box-shadow:0 0 0 7px rgba(255,92,122,0)}
  100%{box-shadow:0 0 0 0 rgba(255,92,122,0)}
}
.countdown{
  display:inline-flex;align-items:center;gap:7px;
  font-size:12px;color:var(--accent);font-family:var(--mono);
  border:1px solid rgba(255,181,71,.38);border-radius:999px;
  padding:5px 11px;background:transparent;white-space:nowrap;
  letter-spacing:.04em;
}
.countdown b{font-weight:700}
.menu-toggle{
  display:none;
  width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);background:rgba(15,26,43,.6);
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
  cursor:pointer;padding:0;
}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--text-2);border-radius:2px;transition:background var(--ease)}
.menu-toggle:hover span{background:var(--primary)}

/* 移动端抽屉 */
.mobile-overlay{
  position:fixed;inset:0;background:rgba(3,6,12,.66);z-index:300;
  opacity:0;visibility:hidden;transition:opacity var(--ease),visibility var(--ease);
  -webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);
}
.mobile-overlay.on{opacity:1;visibility:visible}
.mobile-panel{
  position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);z-index:310;
  background:rgba(10,17,29,.94);
  -webkit-backdrop-filter:blur(22px);backdrop-filter:blur(22px);
  border-left:1px solid var(--line);
  transform:translateX(100%);transition:transform 240ms ease;
  display:flex;flex-direction:column;padding:20px;
  overflow-y:auto;
}
.mobile-panel.on{transform:translateX(0)}
.mobile-panel-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px}
.mobile-close{
  width:36px;height:36px;border-radius:10px;border:1px solid var(--line);
  background:transparent;color:var(--text-2);font-size:18px;line-height:1;cursor:pointer;
}
.mobile-close:hover{color:var(--primary);border-color:rgba(45,226,230,.4)}
.mobile-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:26px}
.mobile-nav a{
  font-size:16px;color:var(--text-2);padding:12px 10px;border-radius:10px;
  border-bottom:1px solid rgba(160,200,230,.07);
}
.mobile-nav a:hover,.mobile-nav a.active{color:#fff;background:rgba(45,226,230,.09)}
.mobile-panel .btn{width:100%}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:14px 28px;border-radius:999px;
  font-size:15px;font-weight:700;line-height:1;
  border:1px solid transparent;cursor:pointer;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),color var(--ease),border-color var(--ease),filter var(--ease);
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,#2DE2E6,#0FB8C9);
  color:#031018;
  box-shadow:0 8px 30px rgba(45,226,230,.25);
}
.btn-primary:hover{color:#031018;transform:translateY(-2px);filter:brightness(1.05);box-shadow:0 12px 38px rgba(45,226,230,.42)}
.btn-primary:active{transform:translateY(0) scale(.98)}
.btn-ghost{
  background:rgba(15,26,43,.55);
  border-color:var(--line);color:var(--text);
}
.btn-ghost:hover{background:rgba(45,226,230,.12);color:#fff;border-color:rgba(45,226,230,.5);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0) scale(.98)}
.btn-sm{min-height:38px;padding:9px 18px;font-size:13.5px}
.btn-block{width:100%}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--primary);
}
.link-arrow::after{content:"→";transition:transform var(--ease)}
.link-arrow:hover::after{transform:translateX(4px)}

/* ============ 通用板块 ============ */
.section{padding:0 0 96px;position:relative;z-index:1}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:32px;margin-bottom:34px;
}
.kicker{
  display:inline-block;
  font-family:var(--mono);font-size:12px;letter-spacing:.16em;
  color:var(--primary);text-transform:uppercase;margin-bottom:10px;
}
.section-head h2{font-size:clamp(1.5rem,2.4vw,2rem);font-weight:700;line-height:1.3}
.section-desc{
  max-width:420px;font-size:14.5px;line-height:1.8;color:var(--text-3);margin:0;
}

/* ============ Hero ============ */
.hero{padding:56px 0 88px;position:relative;z-index:1}
.hero-grid{
  display:grid;grid-template-columns:minmax(0,1.32fr) minmax(0,1fr);
  gap:56px;align-items:center;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.14em;color:var(--primary);
  border:1px solid rgba(45,226,230,.28);
  background:rgba(45,226,230,.08);
  padding:6px 14px;border-radius:999px;margin-bottom:24px;
}
.hero h1{
  font-size:clamp(2.25rem,4.2vw,3.6rem);
  line-height:1.14;font-weight:800;margin-bottom:22px;
}
.hero h1 .h1-sub{
  display:block;margin-top:14px;
  font-size:clamp(1.15rem,1.9vw,1.7rem);
  font-weight:700;line-height:1.4;color:var(--text-2);
}
.hero-lead{
  max-width:520px;font-size:17px;line-height:1.9;color:var(--text-2);margin-bottom:30px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:28px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px}
.hero-tags span{
  font-size:13px;color:var(--text-3);
  border:1px solid var(--line);border-radius:999px;
  padding:6px 14px;background:rgba(15,26,43,.4);
}

/* 竖屏舞台卡 */
.hero-stage{position:relative;display:flex;justify-content:center}
.hero-stage::before{
  content:"";position:absolute;width:78%;height:70%;top:8%;
  background:radial-gradient(circle,rgba(45,226,230,.24),transparent 68%);
  filter:blur(46px);z-index:0;
}
.stage-card{
  position:relative;z-index:1;
  width:100%;max-width:372px;aspect-ratio:9/16;
  border-radius:var(--r-lg);overflow:hidden;
  border:1px solid rgba(160,200,230,.18);
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.06);
  background:var(--bg-2);
}
.stage-card img{width:100%;height:100%;object-fit:cover;object-position:center 30%}
.stage-card::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,rgba(5,8,15,.12) 0%,rgba(5,8,15,.34) 42%,rgba(5,8,15,.9) 100%);
}
.stage-badge{
  position:absolute;top:16px;left:16px;z-index:2;
  display:inline-flex;align-items:center;gap:6px;
  font-size:11.5px;letter-spacing:.08em;color:#fff;
  background:rgba(5,8,15,.62);border:1px solid rgba(45,226,230,.4);
  border-radius:999px;padding:5px 11px;
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
}
.stage-badge::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 8px var(--primary)}
.stage-play{
  position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);z-index:2;
  width:68px;height:68px;border-radius:50%;
  border:1px solid rgba(45,226,230,.55);
  background:rgba(45,226,230,.16);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  display:flex;align-items:center;justify-content:center;cursor:pointer;
  box-shadow:0 0 0 10px rgba(45,226,230,.08),0 0 34px rgba(45,226,230,.4);
  transition:transform var(--ease),background var(--ease),box-shadow var(--ease);
}
.stage-play span{
  width:0;height:0;border-style:solid;
  border-width:11px 0 11px 18px;
  border-color:transparent transparent transparent #EAFEFF;
  margin-left:5px;
}
.stage-play:hover{transform:translate(-50%,-50%) scale(1.06);background:rgba(45,226,230,.28);box-shadow:0 0 0 14px rgba(45,226,230,.1),0 0 44px rgba(45,226,230,.55)}
.stage-bottom{position:absolute;left:0;right:0;bottom:0;z-index:2;padding:0 18px 20px}
.stage-title{font-size:14.5px;font-weight:600;line-height:1.5;color:#fff;margin:0 0 12px}
.stage-progress{height:4px;border-radius:99px;background:rgba(243,248,255,.18);overflow:hidden}
.stage-progress i{display:block;height:100%;background:linear-gradient(90deg,#2DE2E6,#0FB8C9);border-radius:99px;box-shadow:0 0 10px rgba(45,226,230,.7)}
.stage-meta{display:flex;justify-content:space-between;font-family:var(--mono);font-size:11.5px;color:var(--text-3);margin-top:8px;letter-spacing:.04em}
.stage-dots{display:flex;gap:6px;justify-content:center;margin-top:14px}
.stage-dots i{width:6px;height:6px;border-radius:50%;background:rgba(243,248,255,.28)}
.stage-dots i.on{width:18px;border-radius:99px;background:var(--primary);box-shadow:0 0 10px rgba(45,226,230,.8)}

/* ============ 指标条 ============ */
.metrics{padding:0 0 88px;position:relative;z-index:1}
.metrics-grid{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:1px;background:var(--line);border:1px solid var(--line);
  border-radius:var(--r-md);overflow:hidden;
}
.metric{
  background:rgba(10,17,29,.86);
  padding:24px 26px;
  transition:background var(--ease);
}
.metric:hover{background:rgba(15,26,43,.9)}
.metric strong{
  display:block;font-family:var(--mono);font-size:28px;font-weight:700;
  color:var(--primary);line-height:1.2;margin-bottom:6px;letter-spacing:.02em;
}
.metric strong i{font-style:normal;font-size:14px;color:var(--text-2);margin-left:4px}
.metric span{font-size:13.5px;color:var(--text-3)}

/* ============ 横滑片段卡 ============ */
.reel{
  display:flex;gap:20px;overflow-x:auto;
  scroll-snap-type:x mandatory;
  padding:6px 24px 22px;
  margin:0 -24px;
  scrollbar-width:thin;
  scrollbar-color:rgba(45,226,230,.35) transparent;
}
.reel::-webkit-scrollbar{height:6px}
.reel::-webkit-scrollbar-track{background:transparent}
.reel::-webkit-scrollbar-thumb{background:rgba(45,226,230,.3);border-radius:99px}
.reel-card{
  position:relative;flex:0 0 232px;scroll-snap-align:start;
  aspect-ratio:9/16;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line);background:var(--bg-2);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
  box-shadow:var(--shadow);
}
.reel-card img{width:100%;height:100%;object-fit:cover;transition:transform 340ms ease}
.reel-card::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,rgba(5,8,15,.05) 0%,rgba(5,8,15,.28) 46%,rgba(5,8,15,.92) 100%);
}
.reel-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(45,226,230,.3)}
.reel-card:hover img{transform:scale(1.04)}
.reel-tag{
  position:absolute;top:12px;left:12px;z-index:2;
  font-size:11px;letter-spacing:.06em;color:#DFFBFD;
  background:rgba(5,8,15,.62);border:1px solid rgba(160,200,230,.24);
  border-radius:var(--r-tag);padding:4px 9px;
  -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
}
.reel-play{
  position:absolute;top:42%;left:50%;transform:translate(-50%,-50%);z-index:2;
  width:44px;height:44px;border-radius:50%;
  border:1px solid rgba(243,248,255,.35);
  background:rgba(5,8,15,.42);
  -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
  display:flex;align-items:center;justify-content:center;
  transition:background var(--ease),box-shadow var(--ease);
}
.reel-play::before{
  content:"";width:0;height:0;border-style:solid;
  border-width:7px 0 7px 12px;border-color:transparent transparent transparent #EAFEFF;
  margin-left:3px;
}
.reel-card:hover .reel-play{background:rgba(45,226,230,.3);box-shadow:0 0 24px rgba(45,226,230,.5)}
.reel-info{position:absolute;left:0;right:0;bottom:0;z-index:2;padding:0 14px 16px}
.reel-title{font-size:14px;font-weight:600;line-height:1.45;color:#fff;margin:0 0 8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.reel-meta{display:flex;justify-content:space-between;font-family:var(--mono);font-size:11px;color:var(--text-3);letter-spacing:.04em}
.reel-meta span:last-child{color:var(--accent)}

/* ============ 选题清单 ============ */
.list-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.list-item{
  display:flex;align-items:flex-start;gap:16px;
  padding:22px 24px;border-radius:var(--r-sm);
  background:var(--glass);border:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.04);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease),background var(--ease);
  color:var(--text);
}
.list-item:hover{
  transform:translateY(-3px);
  border-color:rgba(45,226,230,.32);
  background:rgba(15,26,43,.88);
  box-shadow:var(--shadow-hover);
  color:var(--text);
}
.list-num{
  font-family:var(--mono);font-size:14px;font-weight:700;
  color:var(--primary);letter-spacing:.06em;flex-shrink:0;
  padding-top:2px;
}
.list-body{flex:1;min-width:0}
.list-body h3{font-size:17px;font-weight:600;margin-bottom:6px}
.list-body p{font-size:14px;line-height:1.7;color:var(--text-3);margin:0}
.list-arrow{
  flex-shrink:0;color:var(--text-3);font-size:16px;
  transition:transform var(--ease),color var(--ease);padding-top:2px;
}
.list-item:hover .list-arrow{transform:translateX(4px);color:var(--primary)}

/* ============ 口碑滚动条 ============ */
.voices{
  position:relative;overflow:hidden;
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 5%,#000 95%,transparent);
  mask-image:linear-gradient(90deg,transparent,#000 5%,#000 95%,transparent);
  padding:6px 0;
}
.voices-track{display:flex;gap:16px;width:max-content;animation:marquee 56s linear infinite}
.voices:hover .voices-track{animation-play-state:paused}
@keyframes marquee{from{transform:translateX(0)}to{transform:translateX(-50%)}}
.voice-card{
  width:320px;flex:0 0 320px;
  background:var(--glass);border:1px solid var(--line);
  border-radius:var(--r-sm);padding:20px 22px;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.04);
  transition:border-color var(--ease),background var(--ease);
}
.voice-card:hover{border-color:rgba(45,226,230,.3);background:rgba(15,26,43,.88)}
.voice-head{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.avatar{
  width:38px;height:38px;border-radius:50%;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:700;color:#031018;
  background:linear-gradient(135deg,#2DE2E6,#0FB8C9);
}
.voice-name{font-size:14.5px;font-weight:600;color:var(--text);line-height:1.4}
.voice-tag{font-size:12px;color:var(--text-3);line-height:1.4}
.voice-text{font-size:13.5px;line-height:1.75;color:var(--text-2);margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* ============ 最新发布（CMS 区） ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.news-card{
  display:flex;flex-direction:column;
  background:var(--glass);border:1px solid var(--line);
  border-radius:var(--r-lg);overflow:hidden;
  color:var(--text);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.04);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.news-card:hover{transform:translateY(-4px);border-color:rgba(45,226,230,.32);box-shadow:var(--shadow-hover);color:var(--text)}
.news-feature{grid-column:span 2;grid-row:span 2}
.news-thumb{position:relative;overflow:hidden;background:var(--bg-2)}
.news-feature .news-thumb{aspect-ratio:16/9}
.news-card .news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 340ms ease}
.news-card:hover .news-thumb img{transform:scale(1.04)}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.news-cat{
  display:inline-flex;align-self:flex-start;
  font-size:11.5px;letter-spacing:.06em;color:#CFFAFB;
  background:rgba(45,226,230,.12);border:1px solid rgba(45,226,230,.28);
  border-radius:var(--r-tag);padding:3px 9px;margin-bottom:12px;
}
.news-title{
  font-size:16px;font-weight:600;line-height:1.5;margin:0 0 10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-feature .news-title{font-size:21px;line-height:1.45;-webkit-line-clamp:2}
.news-summary{
  font-size:13.5px;line-height:1.75;color:var(--text-3);margin:0 0 16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-feature .news-summary{font-size:14.5px;-webkit-line-clamp:3}
.news-meta{
  margin-top:auto;display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  font-family:var(--mono);font-size:11.5px;color:var(--text-3);letter-spacing:.04em;
}
.news-meta .go{margin-left:auto;color:var(--primary);font-family:var(--font);font-size:13px;font-weight:600}

/* 小横排卡 */
.news-compact{flex-direction:row;align-items:stretch}
.news-compact .news-thumb{flex:0 0 120px;width:120px;height:100%;min-height:88px}
.news-compact .news-thumb img{height:100%}
.news-compact .news-body{padding:14px 16px 16px}
.news-compact .news-title{font-size:14.5px;margin-bottom:8px}
.news-compact .news-summary{display:none}
.news-compact .news-cat{margin-bottom:8px;font-size:11px;padding:2px 8px}
.news-compact .news-meta{gap:10px;font-size:11px}

/* 空态 */
.news-empty{
  grid-column:1 / -1;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:10px;padding:64px 24px;text-align:center;
  border:1px dashed rgba(160,200,230,.24);
  border-radius:var(--r-lg);background:rgba(10,17,29,.6);
}
.news-empty .empty-icon{
  width:48px;height:48px;border-radius:50%;
  border:1px solid rgba(45,226,230,.34);
  display:flex;align-items:center;justify-content:center;
  color:var(--primary);font-size:20px;font-family:var(--mono);
}
.news-empty h3{font-size:16px;font-weight:600}
.news-empty p{font-size:14px;color:var(--text-3);margin:0}

/* ============ CTA 带 ============ */
.cta-band{
  position:relative;overflow:hidden;
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  padding:38px 44px;border-radius:var(--r-lg);
  background:var(--glass);border:1px solid rgba(160,200,230,.18);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06),var(--shadow);
}
.cta-band::before{
  content:"";position:absolute;width:340px;height:340px;left:-90px;top:-140px;
  background:radial-gradient(circle,rgba(45,226,230,.28),transparent 68%);
  filter:blur(38px);pointer-events:none;
}
.cta-band::after{
  content:"";position:absolute;width:280px;height:280px;right:-70px;bottom:-150px;
  background:radial-gradient(circle,rgba(255,181,71,.18),transparent 68%);
  filter:blur(38px);pointer-events:none;
}
.cta-copy{position:relative;z-index:1;max-width:640px}
.cta-copy h2{font-size:clamp(1.3rem,2vw,1.75rem);font-weight:700;margin-bottom:10px}
.cta-copy p{font-size:14.5px;line-height:1.8;color:var(--text-2);margin:0}
.cta-band .btn{position:relative;z-index:1;flex-shrink:0}

/* ============ FAQ ============ */
.faq-list{max-width:900px}
.faq-item{
  position:relative;margin-bottom:12px;
  background:var(--glass);border:1px solid var(--line);
  border-radius:var(--r-sm);overflow:hidden;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.04);
  transition:border-color var(--ease),background var(--ease);
}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:linear-gradient(180deg,#2DE2E6,#0FB8C9);
  transform:scaleY(0);transform-origin:top;
  transition:transform 240ms ease;
  box-shadow:0 0 14px rgba(45,226,230,.7);
}
.faq-item.open{border-color:rgba(45,226,230,.3);background:rgba(15,26,43,.9)}
.faq-item.open::before{transform:scaleY(1)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;background:none;border:0;cursor:pointer;text-align:left;
  font-size:16px;font-weight:600;line-height:1.6;color:var(--text);
  transition:color var(--ease);
}
.faq-q:hover{color:var(--primary)}
.faq-icon{
  position:relative;flex-shrink:0;width:20px;height:20px;
  border-radius:50%;border:1px solid rgba(160,200,230,.3);
  transition:transform 240ms ease,border-color var(--ease),background var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--text-2);
  transform:translate(-50%,-50%);border-radius:2px;transition:background var(--ease);
}
.faq-icon::before{width:9px;height:1.5px}
.faq-icon::after{width:1.5px;height:9px;transition:opacity 240ms ease,background var(--ease)}
.faq-item.open .faq-icon{transform:rotate(180deg);border-color:rgba(45,226,230,.6);background:rgba(45,226,230,.12)}
.faq-item.open .faq-icon::after{opacity:0}
.faq-item.open .faq-icon::before,.faq-item.open .faq-icon::after{background:var(--primary)}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height 300ms ease;
}
.faq-a p{
  padding:0 24px 22px;margin:0;
  font-size:15px;line-height:1.85;color:var(--text-2);
}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;z-index:1;
  background:#03060C;
  border-top:1px solid var(--line);
  padding:64px 0 0;
  margin-top:20px;
}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:44px;padding-bottom:48px;
}
.footer-brand .logo{font-size:20px;margin-bottom:16px}
.footer-brand p{font-size:13.5px;line-height:1.85;color:var(--text-3);margin:0 0 16px;max-width:320px}
.footer-badges{display:flex;flex-wrap:wrap;gap:8px}
.footer-badges span{
  font-size:12px;color:var(--text-3);
  border:1px solid var(--line);border-radius:999px;padding:4px 11px;
}
.footer-col h4{
  font-size:13px;font-weight:700;letter-spacing:.1em;color:var(--text-2);
  margin-bottom:16px;
}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;color:var(--text-3)}
.footer-col a:hover{color:var(--primary)}
.footer-contact li{font-size:13.5px;color:var(--text-3);line-height:1.8}
.footer-contact strong{display:block;font-size:13.5px;color:var(--text-2);font-weight:600;margin-bottom:2px}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:22px 0 26px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  font-size:12.5px;color:var(--text-3);line-height:1.8;
}
.footer-bottom .legal{max-width:720px}
.footer-bottom .tech{font-family:var(--mono);letter-spacing:.04em}

/* 返回顶部 */
.to-top{
  position:fixed;right:22px;bottom:22px;z-index:150;
  width:44px;height:44px;border-radius:50%;
  border:1px solid rgba(160,200,230,.24);
  background:rgba(10,17,29,.86);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  color:var(--text-2);font-size:16px;line-height:1;cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity var(--ease),visibility var(--ease),transform var(--ease),color var(--ease),border-color var(--ease);
}
.to-top.on{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{color:var(--primary);border-color:rgba(45,226,230,.5)}

/* ============ 响应式 ============ */
@media screen and (max-width:1199px){
  .hero-grid{gap:40px}
  .hero h1{font-size:clamp(2rem,3.6vw,3rem)}
  .reel-card{flex:0 0 210px}
  .news-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .news-feature{grid-column:span 2;grid-row:auto}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:34px}
}
@media screen and (max-width:991px){
  .nav-main{display:none}
  .menu-toggle{display:flex}
  .status-pill{display:none}
  .header-inner{gap:14px}
  .hero{padding:40px 0 72px}
  .hero-grid{grid-template-columns:minmax(0,1fr);gap:44px}
  .hero-stage{order:2}
  .stage-card{max-width:320px}
  .hero-lead{max-width:none}
  .metrics-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .list-grid{grid-template-columns:minmax(0,1fr)}
  .section{padding-bottom:72px}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px}
  .section-desc{max-width:none}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px 28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .news-feature{grid-column:span 2}
}
@media screen and (max-width:767px){
  :root{--nav-h:64px}
  body{font-size:16px}
  .header-right .btn-sm{display:none}
  .hero h1{font-size:clamp(1.85rem,7vw,2.4rem)}
  .hero h1 .h1-sub{font-size:1.05rem}
  .hero-lead{font-size:15.5px;line-height:1.85}
  .hero-actions{gap:12px}
  .reel-card{flex:0 0 196px}
  .news-grid{grid-template-columns:minmax(0,1fr)}
  .news-feature{grid-column:auto}
  .news-feature .news-title{font-size:18px}
  .voice-card{width:280px;flex:0 0 280px}
  .section{padding-bottom:56px}
  .metrics{padding-bottom:56px}
  .metric{padding:18px 18px}
  .metric strong{font-size:24px}
  .faq-q{font-size:15px;padding:18px 20px}
  .faq-a p{padding:0 20px 20px;font-size:14.5px}
  .cta-band{padding:28px 22px;gap:20px}
  .footer-grid{grid-template-columns:1fr;gap:30px;padding-bottom:36px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media screen and (max-width:479px){
  .wrap{padding-left:16px;padding-right:16px}
  .reel{padding-left:16px;padding-right:16px;margin:0 -16px}
  .hero-actions .btn{width:100%}
  .cta-band .btn{width:100%}
  .stage-card{max-width:290px}
  .news-compact .news-thumb{flex:0 0 96px;width:96px}
  .footer-badges{gap:6px}
}

/* roulang page: category1 */
:root{
  --bg-0:#05080F;
  --bg-1:#0A111D;
  --bg-2:#0F1A2B;
  --glass:rgba(15,26,43,.72);
  --glass-soft:rgba(15,26,43,.5);
  --line:rgba(160,200,230,.12);
  --line-strong:rgba(160,200,230,.22);
  --primary:#2DE2E6;
  --primary-strong:#0FB8C9;
  --accent:#FFB547;
  --danger:#FF5C7A;
  --text:#F3F8FF;
  --text-2:#B6C4D8;
  --text-3:#7C8CA3;
  --r-lg:20px;
  --r-md:14px;
  --r-sm:8px;
  --shadow-1:0 12px 32px rgba(0,0,0,.28);
  --shadow-2:0 18px 48px rgba(0,0,0,.38),0 0 0 1px rgba(45,226,230,.24);
  --t:180ms ease;
  --mono:"DIN Alternate","Bahnschrift","SFMono-Regular",Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:17px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg-0);
  background-image:
    radial-gradient(760px 420px at 82% -6%,rgba(45,226,230,.10),transparent 68%),
    radial-gradient(620px 380px at 4% 12%,rgba(15,184,201,.08),transparent 70%),
    linear-gradient(rgba(160,200,230,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(160,200,230,.045) 1px,transparent 1px);
  background-size:auto,auto,64px 64px,64px 64px;
  padding-top:72px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none}
a{color:var(--primary);text-decoration:none;transition:color var(--t),opacity var(--t)}
a:hover{color:#fff}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.28;letter-spacing:0}
p{margin:0 0 18px}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;cursor:pointer}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section-tight{padding:72px 0}
.sec-head{max-width:720px;margin-bottom:44px}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12px;letter-spacing:.14em;color:var(--primary);
  text-transform:uppercase;font-family:var(--mono);
  padding:7px 14px;border:1px solid rgba(45,226,230,.3);border-radius:999px;
  background:rgba(45,226,230,.07);
}
.sec-title{font-size:32px;line-height:1.25;font-weight:700;margin:18px 0 14px}
.sec-desc{font-size:16px;color:var(--text-2);margin:0;max-width:660px}
.kw{color:var(--primary)}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  height:72px;
  background:rgba(5,8,15,.72);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
}
.header-inner{height:72px;display:flex;align-items:center;gap:28px}
.logo{
  font-size:19px;font-weight:800;color:var(--text);white-space:nowrap;
  display:inline-flex;align-items:baseline;gap:2px;letter-spacing:.02em;
}
.logo em{font-style:normal;color:var(--primary);font-family:var(--mono);font-weight:800}
.logo:hover{color:#fff}
.nav-main{display:flex;align-items:center;gap:4px;margin-right:auto}
.nav-main a{
  position:relative;display:inline-block;
  padding:22px 14px;font-size:15px;color:var(--text-2);font-weight:500;
}
.nav-main a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:16px;height:2px;
  background:var(--primary);border-radius:2px;opacity:0;transform:scaleX(.4);
  transition:opacity var(--t),transform var(--t);
  box-shadow:0 0 10px rgba(45,226,230,.7);
}
.nav-main a:hover{color:#fff}
.nav-main a:hover::after{opacity:.55;transform:scaleX(1)}
.nav-main a.active{color:#fff}
.nav-main a.active::after{opacity:1;transform:scaleX(1)}
.header-tools{display:flex;align-items:center;gap:12px}
.countdown{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;color:var(--accent);
  border:1px solid rgba(255,181,71,.4);border-radius:999px;
  padding:5px 12px;background:rgba(255,181,71,.06);white-space:nowrap;
}
.countdown b{font-family:var(--mono);font-size:13px;letter-spacing:.06em;font-weight:700}
.live-chip{
  display:inline-flex;align-items:center;gap:7px;
  font-size:12px;color:var(--text-2);
  border:1px solid var(--line);border-radius:999px;padding:5px 12px;
  background:var(--glass-soft);white-space:nowrap;
}
.live-chip i{width:7px;height:7px;border-radius:50%;background:var(--danger);box-shadow:0 0 8px var(--danger);animation:pulse 1.8s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:13px 28px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:700;line-height:1.2;text-align:center;
  transition:transform var(--t),box-shadow var(--t),filter var(--t),background var(--t),color var(--t),border-color var(--t);
}
.btn-primary{
  background:linear-gradient(135deg,var(--primary),var(--primary-strong));
  color:#031018;
  box-shadow:0 8px 30px rgba(45,226,230,.25);
}
.btn-primary:hover{color:#031018;transform:translateY(-2px);filter:brightness(1.05);box-shadow:0 14px 38px rgba(45,226,230,.38)}
.btn-primary:active{transform:translateY(0) scale(.98)}
.btn-ghost{
  background:var(--glass-soft);border:1px solid var(--line-strong);color:var(--text);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
}
.btn-ghost:hover{background:rgba(45,226,230,.12);color:#fff;border-color:rgba(45,226,230,.45);transform:translateY(-2px)}
.btn-link{color:var(--primary);font-weight:600;font-size:15px;display:inline-flex;align-items:center;gap:7px;min-height:0;padding:0;border:0;background:none}
.btn-link:hover{gap:11px;color:#fff}
.btn-sm{min-height:38px;padding:8px 18px;font-size:13px}

/* ---------- hero ---------- */
.hero-page{position:relative;padding:64px 0 72px;overflow:hidden}
.hero-page::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(560px 340px at 78% 18%,rgba(45,226,230,.13),transparent 70%),
    repeating-linear-gradient(180deg,rgba(160,200,230,.05) 0 1px,transparent 1px 4px);
  opacity:.85;
}
.hero-grid{position:relative;display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center}
.hero-copy h1{font-size:clamp(2.25rem,4.2vw,3.6rem);font-weight:800;line-height:1.16;margin:20px 0 20px}
.hero-copy h1 span{display:block;color:var(--primary);font-size:.52em;font-weight:700;margin-top:14px;letter-spacing:.02em}
.hero-sub{font-size:17px;color:var(--text-2);max-width:560px;margin-bottom:28px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px}
.tag-row{display:flex;flex-wrap:wrap;gap:10px}
.tag{
  font-size:13px;color:var(--text-2);padding:6px 14px;border-radius:var(--r-sm);
  border:1px solid var(--line);background:var(--glass-soft);
}
.signal-bar{
  margin-top:30px;display:flex;align-items:center;gap:14px;flex-wrap:wrap;
  padding:14px 18px;border-radius:var(--r-md);
  border:1px solid var(--line);background:var(--glass);
  max-width:560px;
}
.signal-bar .dot{width:8px;height:8px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px var(--primary)}
.signal-bar span{font-size:13px;color:var(--text-3)}
.signal-bar b{font-size:13px;color:var(--text);font-weight:600}
.signal-bars{display:inline-flex;align-items:flex-end;gap:3px;margin-left:auto}
.signal-bars i{width:4px;border-radius:2px;background:rgba(45,226,230,.28)}
.signal-bars i:nth-child(1){height:8px;background:var(--primary)}
.signal-bars i:nth-child(2){height:12px;background:var(--primary)}
.signal-bars i:nth-child(3){height:16px;background:var(--primary)}
.signal-bars i:nth-child(4){height:20px}
.signal-bars i:nth-child(5){height:24px}

.hero-visual{position:relative}
.frame-card{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line-strong);
  background:var(--glass);
  box-shadow:var(--shadow-1);
  aspect-ratio:16/11;
}
.frame-card img{width:100%;height:100%;object-fit:cover;object-position:center 35%;transform:scale(1.02)}
.frame-card::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,8,15,.15) 0%,rgba(5,8,15,.35) 45%,rgba(5,8,15,.86) 100%);
}
.frame-top{
  position:absolute;top:16px;left:16px;right:16px;z-index:2;
  display:flex;justify-content:space-between;align-items:center;gap:10px;
}
.badge-live{
  display:inline-flex;align-items:center;gap:7px;
  font-size:12px;color:#031018;font-weight:700;
  background:var(--accent);border-radius:999px;padding:5px 12px;
}
.badge-live i{width:6px;height:6px;border-radius:50%;background:#7a2b00}
.badge-soft{
  font-size:12px;color:var(--text-2);font-family:var(--mono);
  border:1px solid var(--line-strong);border-radius:999px;padding:5px 12px;
  background:rgba(5,8,15,.55);
}
.frame-bottom{position:absolute;left:16px;right:16px;bottom:16px;z-index:2}
.frame-bottom h3{font-size:17px;font-weight:700;margin-bottom:6px}
.frame-bottom p{font-size:13px;color:var(--text-2);margin:0}
.progress{margin-top:12px;height:4px;border-radius:99px;background:rgba(160,200,230,.18);overflow:hidden}
.progress i{display:block;height:100%;width:42%;border-radius:99px;background:linear-gradient(90deg,var(--primary),var(--primary-strong))}
.frame-dots{display:flex;gap:6px;margin-top:12px}
.frame-dots i{width:6px;height:6px;border-radius:50%;background:rgba(160,200,230,.3)}
.frame-dots i:first-child{background:var(--primary);box-shadow:0 0 8px rgba(45,226,230,.8)}

/* ---------- metrics ---------- */
.metrics{
  display:grid;grid-template-columns:repeat(4,1fr);gap:16px;
  margin-top:56px;position:relative;
}
.metric{
  padding:22px 20px;border-radius:var(--r-md);
  border:1px solid var(--line);background:var(--glass);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.05);
  transition:border-color var(--t),transform var(--t)
}
.metric:hover{border-color:rgba(45,226,230,.35);transform:translateY(-4px)}
.metric b{display:block;font-family:var(--mono);font-size:28px;color:var(--text);line-height:1.2;margin-bottom:6px}
.metric b em{font-style:normal;font-size:14px;color:var(--primary);margin-left:4px}
.metric span{font-size:13px;color:var(--text-3)}

/* ---------- feature grid ---------- */
.feature-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.feature-card{
  position:relative;padding:30px 28px;border-radius:var(--r-lg);
  border:1px solid var(--line);background:var(--glass);
  box-shadow:var(--shadow-1);overflow:hidden;
  transition:transform var(--t),border-color var(--t),box-shadow var(--t);
}
.feature-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(45,226,230,.5),transparent);
  opacity:0;transition:opacity var(--t);
}
.feature-card:hover{transform:translateY(-4px);border-color:rgba(45,226,230,.3);box-shadow:var(--shadow-2)}
.feature-card:hover::before{opacity:1}
.feature-ico{
  width:46px;height:46px;border-radius:12px;display:grid;place-items:center;
  border:1px solid rgba(45,226,230,.3);color:var(--primary);font-size:18px;
  background:rgba(45,226,230,.08);margin-bottom:18px;
}
.feature-card h3{font-size:18px;font-weight:700;margin-bottom:10px}
.feature-card p{font-size:14px;line-height:1.85;color:var(--text-2);margin:0}
.feature-meta{margin-top:16px;font-size:12px;color:var(--text-3);font-family:var(--mono);letter-spacing:.06em}

/* ---------- standards ---------- */
.standards{display:grid;grid-template-columns:repeat(2,1fr);gap:16px 40px;counter-reset:std}
.std-item{
  display:grid;grid-template-columns:56px 1fr;gap:16px;align-items:start;
  padding:22px 0;border-bottom:1px solid var(--line);
}
.std-num{
  font-family:var(--mono);font-size:20px;font-weight:700;color:var(--primary);
  line-height:1.2;padding-top:2px;
}
.std-item h3{font-size:17px;margin-bottom:6px}
.std-item p{font-size:14px;color:var(--text-2);margin:0}

/* ---------- scene strip ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.scene-card{
  border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);
  background:var(--glass);box-shadow:var(--shadow-1);
  transition:transform var(--t),border-color var(--t),box-shadow var(--t);
}
.scene-card:hover{transform:translateY(-4px);border-color:rgba(45,226,230,.3);box-shadow:var(--shadow-2)}
.scene-thumb{position:relative;aspect-ratio:16/10;overflow:hidden}
.scene-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 420ms ease}
.scene-card:hover .scene-thumb img{transform:scale(1.04)}
.scene-thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(5,8,15,.7))}
.scene-tag{
  position:absolute;left:14px;top:14px;z-index:2;
  font-size:12px;color:var(--primary);padding:4px 10px;border-radius:var(--r-sm);
  background:rgba(5,8,15,.72);border:1px solid rgba(45,226,230,.35);
}
.scene-body{padding:20px}
.scene-body h3{font-size:17px;margin-bottom:8px}
.scene-body p{font-size:14px;color:var(--text-2);margin:0}

/* ---------- faq ---------- */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:880px}
.faq-item{
  border:1px solid var(--line);border-radius:var(--r-md);
  background:var(--glass);overflow:hidden;position:relative;
  transition:border-color var(--t),box-shadow var(--t);
}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:var(--primary);opacity:0;transition:opacity var(--t);
  box-shadow:0 0 14px rgba(45,226,230,.6);
}
.faq-item.is-open{border-color:rgba(45,226,230,.32);box-shadow:var(--shadow-1)}
.faq-item.is-open::before{opacity:1}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;background:none;border:0;color:var(--text);
  font-size:16px;font-weight:600;line-height:1.6;text-align:left;
}
.faq-q:hover{color:#fff}
.faq-ico{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  display:grid;place-items:center;font-size:14px;color:var(--primary);
  border:1px solid rgba(45,226,230,.35);transition:transform var(--t),background var(--t);
}
.faq-item.is-open .faq-ico{transform:rotate(45deg);background:rgba(45,226,230,.14)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 260ms ease}
.faq-a p{padding:0 24px 22px;margin:0;font-size:15px;line-height:1.85;color:var(--text-2)}

/* ---------- cta band ---------- */
.cta-band{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line-strong);
  background:linear-gradient(115deg,rgba(15,26,43,.94),rgba(10,17,29,.86));
  box-shadow:var(--shadow-1);
  padding:44px 44px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
}
.cta-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(420px 220px at 88% 20%,rgba(45,226,230,.18),transparent 70%),
    radial-gradient(320px 200px at 8% 90%,rgba(255,181,71,.10),transparent 72%);
}
.cta-band .cta-copy{position:relative;max-width:640px}
.cta-band h2{font-size:28px;margin-bottom:10px;line-height:1.3}
.cta-band p{margin:0;font-size:15px;color:var(--text-2)}
.cta-band .btn{position:relative;flex:0 0 auto}

/* ---------- footer ---------- */
.site-footer{
  margin-top:96px;background:linear-gradient(180deg,rgba(5,8,15,.4),rgba(5,8,15,.95));
  border-top:1px solid var(--line);padding:64px 0 28px;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand .logo{font-size:19px;margin-bottom:16px;display:inline-block}
.footer-brand p{font-size:14px;color:var(--text-3);line-height:1.85;margin-bottom:18px;max-width:340px}
.footer-badges{display:flex;flex-wrap:wrap;gap:8px}
.footer-badges span{
  font-size:12px;color:var(--text-2);padding:4px 10px;border-radius:var(--r-sm);
  border:1px solid var(--line);background:var(--glass-soft);
}
.footer-col h4{font-size:15px;font-weight:700;margin-bottom:16px;color:var(--text)}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a{font-size:14px;color:var(--text-3)}
.footer-col ul a:hover{color:var(--primary)}
.footer-contact li{font-size:13px;color:var(--text-3);line-height:1.8;margin-bottom:8px}
.footer-contact strong{display:inline-block;color:var(--text-2);font-weight:600;margin-right:6px}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
}
.footer-bottom .legal{font-size:12px;color:var(--text-3);margin:0;max-width:760px;line-height:1.8}
.footer-bottom .tech{font-size:12px;color:var(--text-3);font-family:var(--mono);margin:0}

/* ---------- mobile drawer ---------- */
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;
  border:1px solid var(--line-strong);background:var(--glass-soft);color:var(--text);
  align-items:center;justify-content:center;font-size:16px;
}
.drawer{
  position:fixed;inset:0;z-index:80;pointer-events:none;
}
.drawer-mask{
  position:absolute;inset:0;background:rgba(3,6,12,.6);
  opacity:0;transition:opacity var(--t);
}
.drawer-panel{
  position:absolute;top:0;right:0;bottom:0;width:min(320px,86vw);
  background:rgba(8,14,24,.96);
  -webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);
  border-left:1px solid var(--line-strong);
  padding:22px;display:flex;flex-direction:column;gap:8px;
  transform:translateX(100%);transition:transform 260ms ease;
}
.drawer.is-open{pointer-events:auto}
.drawer.is-open .drawer-mask{opacity:1}
.drawer.is-open .drawer-panel{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
.drawer-head span{font-size:13px;color:var(--text-3);letter-spacing:.1em;font-family:var(--mono)}
.drawer-close{width:36px;height:36px;border-radius:9px;border:1px solid var(--line);background:var(--glass-soft);color:var(--text);font-size:15px}
.drawer-panel a.drawer-link{
  font-size:16px;color:var(--text-2);padding:14px 12px;border-radius:var(--r-sm);
  border-bottom:1px solid var(--line);
}
.drawer-panel a.drawer-link:hover,.drawer-panel a.drawer-link.active{color:var(--primary);background:rgba(45,226,230,.07)}
.drawer-panel .btn{width:100%;margin-top:auto}

/* ---------- back to top ---------- */
.to-top{
  position:fixed;right:20px;bottom:24px;z-index:50;
  width:44px;height:44px;border-radius:50%;display:grid;place-items:center;
  border:1px solid var(--line-strong);background:rgba(10,17,29,.9);
  color:var(--text-2);font-size:15px;opacity:0;visibility:hidden;
  transition:opacity var(--t),transform var(--t),color var(--t),border-color var(--t);
}
.to-top.show{opacity:1;visibility:visible}
.to-top:hover{color:var(--primary);border-color:rgba(45,226,230,.5);transform:translateY(-3px)}

/* ---------- responsive ---------- */
@media screen and (max-width:1199px){
  .hero-grid{gap:36px}
  .sec-title{font-size:29px}
}
@media screen and (max-width:991px){
  body{padding-top:64px}
  .site-header,.header-inner{height:64px}
  .nav-main{display:none}
  .nav-toggle{display:inline-flex}
  .header-tools .countdown,.header-tools .live-chip{display:none}
  .header-inner{gap:14px}
  .logo{font-size:17px;margin-right:auto}
  .hero-page{padding:44px 0 56px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-copy h1{margin:16px 0}
  .frame-card{aspect-ratio:16/10;max-width:560px}
  .metrics{grid-template-columns:repeat(2,1fr);margin-top:40px}
  .feature-grid{grid-template-columns:1fr;gap:18px}
  .standards{grid-template-columns:1fr;gap:0}
  .scene-grid{grid-template-columns:1fr 1fr}
  .section{padding:72px 0}
  .section-tight{padding:56px 0}
  .cta-band{flex-direction:column;align-items:flex-start;padding:34px 28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .site-footer{margin-top:72px}
}
@media screen and (max-width:767px){
  .wrap{padding:0 16px}
  .hero-copy h1{font-size:clamp(1.9rem,7vw,2.4rem)}
  .hero-sub{font-size:16px}
  .sec-title{font-size:25px}
  .section{padding:48px 0}
  .section-tight{padding:44px 0}
  .sec-head{margin-bottom:32px}
  .scene-grid{grid-template-columns:1fr}
  .metrics{grid-template-columns:1fr 1fr;gap:12px}
  .metric b{font-size:24px}
  .feature-card{padding:24px 20px}
  .std-item{grid-template-columns:44px 1fr;gap:12px}
  .faq-q{padding:16px 18px;font-size:15px}
  .faq-a p{padding:0 18px 18px;font-size:14px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px}
  .signal-bar{flex-wrap:wrap;gap:10px}
  .signal-bars{margin-left:0}
  .cta-band{padding:28px 20px}
  .cta-band h2{font-size:23px}
}
@media screen and (max-width:480px){
  .hero-cta .btn{width:100%}
  .hero-cta{gap:10px}
  .metrics{grid-template-columns:1fr}
  .tag{font-size:12px;padding:5px 12px}
  .frame-bottom h3{font-size:15px}
  .feature-ico{width:42px;height:42px;font-size:16px}
  .to-top{right:14px;bottom:18px}
}

/* roulang page: article */
:root{
  --bg-0:#05080F;
  --bg-1:#0A111D;
  --bg-2:#0F1A2B;
  --glass:rgba(15,26,43,.72);
  --glass-soft:rgba(15,26,43,.48);
  --line:rgba(160,200,230,.12);
  --line-strong:rgba(160,200,230,.22);
  --primary:#2DE2E6;
  --primary-strong:#0FB8C9;
  --accent:#FFB547;
  --danger:#FF5C7A;
  --text:#F3F8FF;
  --text-2:#B6C4D8;
  --text-3:#7C8CA3;
  --r-lg:20px;
  --r-sm:14px;
  --r-tag:8px;
  --r-btn:999px;
  --shadow:0 12px 32px rgba(0,0,0,.28);
  --shadow-hover:0 18px 48px rgba(0,0,0,.38),0 0 0 1px rgba(45,226,230,.24);
  --wrap:1200px;
  --mono:"DIN Alternate","Bahnschrift","SFMono-Regular",Consolas,monospace;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  padding-top:72px;
  background:var(--bg-0);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  font-size:17px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  position:relative;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background-image:linear-gradient(rgba(160,200,230,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(160,200,230,.045) 1px,transparent 1px);
  background-size:64px 64px;
  pointer-events:none;
  z-index:0;
}
body::after{
  content:"";
  position:fixed;
  top:-280px;
  left:50%;
  width:1100px;
  height:1100px;
  margin-left:-550px;
  background:radial-gradient(circle,rgba(45,226,230,.10) 0%,rgba(45,226,230,.03) 42%,transparent 68%);
  pointer-events:none;
  z-index:0;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .18s ease,border-color .18s ease,background-color .18s ease;}
p{margin:0;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.35;color:var(--text);}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px;}
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 24px;position:relative;z-index:1;}

/* ---------- header ---------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  height:72px;
  z-index:80;
  background:rgba(5,8,15,.72);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  height:100%;
  display:flex;
  align-items:center;
  gap:28px;
}
.logo{
  font-size:19px;
  font-weight:800;
  letter-spacing:.4px;
  color:var(--text);
  white-space:nowrap;
  display:inline-flex;
  align-items:center;
}
.logo em{
  font-style:normal;
  color:var(--primary);
  font-weight:800;
  margin-right:1px;
  text-shadow:0 0 18px rgba(45,226,230,.45);
}
.logo:hover{color:#fff;}
.nav-main{
  display:flex;
  align-items:center;
  gap:26px;
  margin-right:auto;
}
.nav-main a{
  position:relative;
  font-size:15px;
  color:var(--text-2);
  padding:6px 0;
  font-weight:500;
}
.nav-main a::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-2px;
  height:2px;
  background:var(--primary);
  border-radius:2px;
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .18s ease;
  box-shadow:0 0 12px rgba(45,226,230,.65);
}
.nav-main a:hover{color:#fff;}
.nav-main a:hover::after{transform:scaleX(1);}
.nav-main a.active{color:#fff;}
.nav-main a.active::after{transform:scaleX(1);}
.header-tools{display:flex;align-items:center;gap:14px;}
.countdown{
  font-family:var(--mono);
  font-size:13px;
  letter-spacing:1px;
  color:var(--accent);
  border:1px solid rgba(255,181,71,.42);
  border-radius:var(--r-tag);
  padding:5px 11px;
  background:transparent;
  white-space:nowrap;
}
.live-badge{
  display:inline-flex;
  align-items:center;
  gap:7px;
  font-size:12px;
  color:var(--text-2);
  border:1px solid var(--line-strong);
  border-radius:var(--r-btn);
  padding:5px 12px;
  background:var(--glass-soft);
  white-space:nowrap;
}
.live-badge .dot{
  width:7px;height:7px;border-radius:50%;
  background:var(--danger);
  box-shadow:0 0 10px rgba(255,92,122,.8);
  animation:pulse 1.8s infinite;
}
@keyframes pulse{
  0%,100%{opacity:1;transform:scale(1);}
  50%{opacity:.45;transform:scale(.82);}
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:48px;
  padding:13px 28px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:700;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease,filter .18s ease;
}
.btn-primary{
  background:linear-gradient(135deg,var(--primary) 0%,var(--primary-strong) 100%);
  color:#031018;
  box-shadow:0 8px 30px rgba(45,226,230,.25);
}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.05);box-shadow:0 12px 38px rgba(45,226,230,.38);color:#031018;}
.btn-primary:active{transform:translateY(0) scale(.98);}
.btn-ghost{
  background:transparent;
  color:var(--text);
  border:1px solid var(--line-strong);
}
.btn-ghost:hover{background:rgba(45,226,230,.12);border-color:rgba(45,226,230,.45);color:#fff;transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0) scale(.98);}
.btn-sm{min-height:38px;padding:8px 18px;font-size:13.5px;}
.btn-block{width:100%;}
.nav-toggle{
  display:none;
  align-items:center;
  justify-content:center;
  width:40px;height:40px;
  border-radius:10px;
  border:1px solid var(--line-strong);
  background:var(--glass-soft);
  color:var(--text);
  font-size:16px;
  cursor:pointer;
}
.nav-toggle:hover{border-color:rgba(45,226,230,.45);color:#fff;}

/* off canvas */
.mobile-panel{
  position:fixed;
  top:0;right:0;
  width:320px;max-width:86vw;
  height:100%;
  background:rgba(8,14,24,.96);
  backdrop-filter:blur(20px);
  -webkit-backdrop-filter:blur(20px);
  border-left:1px solid var(--line-strong);
  z-index:120;
  transform:translateX(102%);
  transition:transform .28s ease;
  display:flex;
  flex-direction:column;
  padding:20px;
  overflow-y:auto;
}
.mobile-panel.open{transform:translateX(0);}
.mobile-panel-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px;}
.panel-close{
  width:36px;height:36px;border-radius:10px;
  border:1px solid var(--line-strong);
  background:transparent;color:var(--text-2);
  font-size:18px;cursor:pointer;line-height:1;
}
.panel-close:hover{color:#fff;border-color:rgba(45,226,230,.45);}
.mobile-panel nav{display:flex;flex-direction:column;gap:4px;margin-bottom:24px;}
.mobile-panel nav a{
  font-size:16px;
  color:var(--text-2);
  padding:13px 12px;
  border-radius:12px;
  border:1px solid transparent;
}
.mobile-panel nav a:hover,.mobile-panel nav a.active{
  color:#fff;
  background:rgba(45,226,230,.08);
  border-color:rgba(45,226,230,.28);
}
.mobile-meta{font-size:13px;color:var(--text-3);margin-bottom:20px;line-height:1.9;}
.panel-mask{
  position:fixed;inset:0;
  background:rgba(3,6,12,.66);
  z-index:110;
  opacity:0;visibility:hidden;
  transition:opacity .25s ease,visibility .25s ease;
}
.panel-mask.open{opacity:1;visibility:visible;}

/* ---------- breadcrumb ---------- */
.crumb{
  font-size:13px;
  color:var(--text-3);
  padding:28px 0 0;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  line-height:1.7;
}
.crumb a{color:var(--text-3);}
.crumb a:hover{color:var(--primary);}
.crumb .sep{color:rgba(124,140,163,.55);}
.crumb .current{color:var(--text-2);}

/* ---------- article head ---------- */
.article-head{padding:22px 0 0;max-width:880px;}
.brand-line{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12.5px;
  color:var(--text-3);
  letter-spacing:.5px;
  margin-bottom:14px;
}
.brand-line .bar{width:22px;height:1px;background:rgba(45,226,230,.6);display:inline-block;}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:16px;}
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:12.5px;
  font-weight:600;
  color:var(--primary);
  background:rgba(45,226,230,.10);
  border:1px solid rgba(45,226,230,.28);
  border-radius:var(--r-tag);
  padding:4px 11px;
  letter-spacing:.3px;
}
.tag-accent{
  color:var(--accent);
  background:rgba(255,181,71,.10);
  border-color:rgba(255,181,71,.32);
}
.article-head h1{
  font-size:clamp(1.85rem,3.3vw,2.85rem);
  font-weight:800;
  line-height:1.36;
  margin-bottom:20px;
}
.meta-row{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:18px;
  font-size:13.5px;
  color:var(--text-3);
  padding-bottom:26px;
  border-bottom:1px solid var(--line);
}
.meta-row span{display:inline-flex;align-items:center;gap:7px;}
.meta-row i{color:rgba(45,226,230,.72);font-size:12px;}
.meta-row .divider{width:1px;height:13px;background:var(--line-strong);display:inline-block;padding:0;}
.article-cover{
  margin:30px 0 0;
  border-radius:var(--r-lg);
  overflow:hidden;
  aspect-ratio:16/9;
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  background:var(--bg-2);
}
.article-cover img{width:100%;height:100%;object-fit:cover;object-position:center 32%;}
.article-cover figcaption{font-size:13px;color:var(--text-3);text-align:center;padding:10px 0 0;}

/* ---------- layout ---------- */
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 300px;
  gap:52px;
  padding:44px 0 0;
  align-items:start;
}
.article-main{min-width:0;}

/* toc mobile */
.toc-mobile{
  display:none;
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  background:var(--glass);
  margin-bottom:26px;
  overflow:hidden;
}
.toc-mobile-head{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:14px 18px;
  background:transparent;
  border:0;
  color:var(--text);
  font-size:15px;
  font-weight:600;
  cursor:pointer;
}
.toc-mobile-body{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.toc-mobile-body ul{padding:0 18px 16px;}
.toc-mobile-body li{margin-bottom:8px;font-size:14px;}
.toc-mobile-body a{color:var(--text-2);}
.toc-mobile-body a:hover{color:var(--primary);}

/* ---------- article body ---------- */
.article-body{
  font-size:17px;
  line-height:1.9;
  color:var(--text-2);
  min-width:0;
  word-wrap:break-word;
  overflow-wrap:break-word;
}
.article-body p{margin:0 0 20px;}
.article-body h2{
  font-size:28px;
  line-height:1.4;
  color:var(--text);
  border-left:4px solid var(--primary);
  padding-left:15px;
  margin:42px 0 18px;
  scroll-margin-top:96px;
}
.article-body h3{
  font-size:22px;
  line-height:1.45;
  color:var(--text);
  margin:32px 0 14px;
  scroll-margin-top:96px;
}
.article-body h4{
  font-size:18px;
  color:var(--text);
  margin:26px 0 12px;
}
.article-body strong{color:var(--text);font-weight:700;}
.article-body a{color:var(--primary);text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{color:#fff;}
.article-body ul,.article-body ol{margin:0 0 22px;padding-left:22px;}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin-bottom:9px;}
.article-body li::marker{color:var(--primary);}
.article-body blockquote{
  margin:26px 0;
  padding:18px 22px;
  background:var(--glass);
  border-left:3px solid var(--accent);
  border-radius:0 var(--r-sm) var(--r-sm) 0;
  color:var(--text);
  font-size:16px;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:16px;width:100%;height:auto;margin:26px 0 10px;}
.article-body figure{margin:26px 0;}
.article-body figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:8px;}
.article-body table{
  width:100%;
  border-collapse:collapse;
  margin:24px 0;
  display:block;
  overflow-x:auto;
  font-size:15px;
}
.article-body th,.article-body td{
  border:1px solid var(--line);
  padding:11px 14px;
  text-align:left;
  color:var(--text-2);
  white-space:nowrap;
}
.article-body th{background:rgba(45,226,230,.08);color:var(--text);font-weight:600;}
.article-body hr{border:0;height:1px;background:var(--line);margin:34px 0;}

/* empty state */
.empty-state{
  border:1px solid var(--line);
  background:var(--glass);
  border-radius:var(--r-lg);
  padding:52px 28px;
  text-align:center;
  box-shadow:var(--shadow);
}
.empty-state .icon{
  width:56px;height:56px;
  border-radius:16px;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(45,226,230,.10);
  border:1px solid rgba(45,226,230,.26);
  color:var(--primary);
  font-size:22px;
  margin-bottom:18px;
}
.empty-state h2{font-size:20px;margin-bottom:10px;}
.empty-state p{font-size:14.5px;color:var(--text-3);max-width:420px;margin:0 auto 22px;}

/* ---------- sidebar ---------- */
.side-col{
  position:sticky;
  top:96px;
  display:flex;
  flex-direction:column;
  gap:20px;
}
.side-card{
  border:1px solid var(--line);
  background:var(--glass);
  border-radius:var(--r-lg);
  padding:20px;
  box-shadow:var(--shadow);
  position:relative;
  overflow:hidden;
}
.side-card::before{
  content:"";
  position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(160,200,230,.30),transparent);
}
.side-title{
  font-size:14px;
  font-weight:700;
  color:var(--text);
  letter-spacing:.4px;
  display:flex;
  align-items:center;
  gap:8px;
  margin-bottom:14px;
}
.side-title::before{
  content:"";
  width:3px;height:14px;
  background:var(--primary);
  border-radius:2px;
  box-shadow:0 0 10px rgba(45,226,230,.6);
}
.toc-list li{
  margin-bottom:10px;
  font-size:13.5px;
  line-height:1.6;
  color:var(--text-2);
}
.toc-list li:last-child{margin-bottom:0;}
.toc-list a{color:var(--text-2);display:block;padding-left:10px;border-left:1px solid var(--line);}
.toc-list a:hover{color:var(--primary);border-left-color:rgba(45,226,230,.55);}
.toc-empty{font-size:13px;color:var(--text-3);}
.side-rec{display:flex;flex-direction:column;gap:14px;}
.side-rec-item{display:flex;gap:12px;align-items:flex-start;}
.side-rec-thumb{
  flex:0 0 84px;
  width:84px;height:60px;
  border-radius:10px;
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--bg-2);
}
.side-rec-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.side-rec-item:hover .side-rec-thumb img{transform:scale(1.06);}
.side-rec-body{min-width:0;}
.side-rec-body h4{
  font-size:13.5px;
  font-weight:600;
  color:var(--text);
  line-height:1.5;
  margin-bottom:5px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.side-rec-item:hover h4{color:var(--primary);}
.side-rec-body time{font-size:12px;color:var(--text-3);font-family:var(--mono);}
.side-cta{
  background:
    radial-gradient(circle at 88% 0%,rgba(45,226,230,.16),transparent 62%),
    rgba(15,26,43,.82);
  border:1px solid rgba(45,226,230,.24);
}
.side-cta p{font-size:13.5px;color:var(--text-2);line-height:1.8;margin-bottom:16px;}

/* ---------- related ---------- */
.section{padding:74px 0 0;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:28px;
}
.section-head h2{
  font-size:clamp(1.35rem,2vw,1.75rem);
  font-weight:700;
}
.section-head p{font-size:14px;color:var(--text-3);max-width:520px;line-height:1.8;}
.rec-grid{margin:0 -12px 0;}
.rec-grid .cell{padding:0 12px;margin-bottom:24px;}
.rec-card{
  height:100%;
  border:1px solid var(--line);
  background:var(--glass);
  border-radius:var(--r-lg);
  overflow:hidden;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  box-shadow:var(--shadow);
}
.rec-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(45,226,230,.30);}
.rec-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--bg-2);}
.rec-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.rec-card:hover .rec-thumb img{transform:scale(1.05);}
.rec-body{padding:18px 20px 20px;}
.rec-body .tag{margin-bottom:10px;}
.rec-body h3{
  font-size:16.5px;
  font-weight:600;
  line-height:1.55;
  margin-bottom:8px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.rec-body p{font-size:13.5px;color:var(--text-3);line-height:1.75;margin-bottom:12px;}
.rec-body time{font-size:12.5px;color:var(--text-3);font-family:var(--mono);}
.rec-card:hover h3{color:var(--primary);}

/* back bar */
.back-bar{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  margin-top:36px;
  padding:18px 22px;
  border:1px solid var(--line);
  background:var(--glass-soft);
  border-radius:var(--r-sm);
}
.back-bar p{font-size:13.5px;color:var(--text-3);}

/* ---------- faq ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:860px;}
.faq-item{
  border:1px solid var(--line);
  background:var(--glass);
  border-radius:var(--r-sm);
  overflow:hidden;
  position:relative;
  transition:border-color .2s ease;
}
.faq-item::before{
  content:"";
  position:absolute;
  left:0;top:0;bottom:0;
  width:3px;
  background:var(--primary);
  opacity:0;
  transition:opacity .2s ease;
  box-shadow:0 0 14px rgba(45,226,230,.7);
}
.faq-item.open{border-color:rgba(45,226,230,.30);}
.faq-item.open::before{opacity:1;}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  text-align:left;
  padding:18px 22px;
  background:transparent;
  border:0;
  color:var(--text);
  font-size:16px;
  font-weight:600;
  cursor:pointer;
  line-height:1.6;
}
.faq-q:hover{color:var(--primary);}
.faq-icon{
  flex:0 0 auto;
  width:20px;height:20px;
  position:relative;
  transition:transform .25s ease;
}
.faq-icon::before,.faq-icon::after{
  content:"";
  position:absolute;
  background:var(--primary);
  border-radius:2px;
}
.faq-icon::before{left:2px;right:2px;top:9px;height:2px;}
.faq-icon::after{top:2px;bottom:2px;left:9px;width:2px;transition:opacity .25s ease;}
.faq-item.open .faq-icon{transform:rotate(180deg);}
.faq-item.open .faq-icon::after{opacity:0;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-a p{padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--text-2);}

/* ---------- cta band ---------- */
.cta-band{
  margin-top:78px;
  border:1px solid rgba(45,226,230,.22);
  border-radius:var(--r-lg);
  background:
    radial-gradient(circle at 12% 20%,rgba(45,226,230,.14),transparent 58%),
    radial-gradient(circle at 88% 90%,rgba(255,181,71,.10),transparent 55%),
    rgba(15,26,43,.78);
  padding:32px 34px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  box-shadow:var(--shadow);
  position:relative;
  overflow:hidden;
}
.cta-band::before{
  content:"";
  position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(45,226,230,.55),transparent);
}
.cta-band h2{font-size:clamp(1.2rem,1.8vw,1.55rem);margin-bottom:8px;}
.cta-band p{font-size:14.5px;color:var(--text-2);max-width:620px;line-height:1.8;}

/* ---------- footer ---------- */
.site-footer{
  margin-top:96px;
  background:rgba(4,7,13,.92);
  border-top:1px solid var(--line);
  padding:56px 0 0;
  position:relative;
  z-index:1;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.1fr;
  gap:36px;
  padding-bottom:40px;
}
.footer-brand .logo{font-size:18px;margin-bottom:14px;}
.footer-brand p{font-size:13.5px;color:var(--text-3);line-height:1.9;max-width:340px;}
.footer-badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.footer-badges span{
  font-size:12px;
  color:var(--text-2);
  border:1px solid var(--line-strong);
  border-radius:var(--r-btn);
  padding:4px 11px;
  background:rgba(15,26,43,.6);
}
.footer-col h4{
  font-size:14px;
  font-weight:700;
  color:var(--text);
  margin-bottom:16px;
  letter-spacing:.4px;
}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col ul a{font-size:13.5px;color:var(--text-3);}
.footer-col ul a:hover{color:var(--primary);}
.footer-contact li{
  font-size:13.5px;
  color:var(--text-3);
  line-height:1.8;
  display:flex;
  gap:8px;
  flex-wrap:wrap;
}
.footer-contact strong{color:var(--text-2);font-weight:600;}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:20px 0 26px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  flex-wrap:wrap;
}
.footer-bottom .legal{font-size:12.5px;color:var(--text-3);line-height:1.8;max-width:820px;}
.footer-bottom .tech{font-size:12.5px;color:rgba(124,140,163,.7);font-family:var(--mono);}

/* back to top */
.to-top{
  position:fixed;
  right:22px;bottom:26px;
  width:44px;height:44px;
  border-radius:50%;
  border:1px solid var(--line-strong);
  background:rgba(10,17,29,.9);
  color:var(--text-2);
  display:flex;align-items:center;justify-content:center;
  cursor:pointer;
  z-index:70;
  opacity:0;visibility:hidden;
  transition:opacity .22s ease,visibility .22s ease,color .18s ease,border-color .18s ease,transform .18s ease;
  backdrop-filter:blur(10px);
}
.to-top.show{opacity:1;visibility:visible;}
.to-top:hover{color:var(--primary);border-color:rgba(45,226,230,.5);transform:translateY(-2px);}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .article-layout{grid-template-columns:minmax(0,1fr) 280px;gap:36px;}
  .nav-main{gap:20px;}
  .header-inner{gap:20px;}
}
@media (max-width:991px){
  body{padding-top:64px;}
  .site-header{height:64px;}
  .nav-main{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-tools .countdown{display:none;}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:0;padding-top:32px;}
  .side-col{display:none;}
  .toc-mobile{display:block;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:28px 24px;}
  .section{padding:56px 0 0;}
  .site-footer{margin-top:72px;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .wrap{padding:0 16px;}
  .header-tools .live-badge{display:none;}
  .article-head h1{font-size:1.6rem;}
  .article-body{font-size:16px;line-height:1.85;}
  .article-body h2{font-size:23px;margin:34px 0 14px;}
  .article-body h3{font-size:19px;}
  .meta-row{gap:12px;font-size:12.5px;}
  .rec-grid{margin:0 -8px;}
  .rec-grid .cell{padding:0 8px;}
  .faq-q{font-size:15px;padding:16px 18px;}
  .faq-a p{padding:0 18px 18px;font-size:14.5px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .cta-band h2{font-size:1.15rem;}
  .btn{width:100%;}
  .back-bar .btn{width:auto;}
  .article-cover{margin-top:24px;}
  .crumb{padding-top:20px;}
}
@media (max-width:519px){
  .article-head h1{font-size:1.42rem;line-height:1.45;}
  .section-head{flex-direction:column;align-items:flex-start;gap:8px;}
  .rec-body h3{font-size:15.5px;}
  .to-top{right:14px;bottom:16px;width:40px;height:40px;}
  .cta-band{padding:22px 18px;}
}

/* roulang page: category3 */
:root{
  --bg-0:#05080F; --bg-1:#0A111D; --bg-2:#0F1A2B;
  --glass:rgba(15,26,43,.72);
  --line:rgba(160,200,230,.12);
  --line-strong:rgba(160,200,230,.22);
  --primary:#2DE2E6; --primary-strong:#0FB8C9;
  --accent:#FFB547; --danger:#FF5C7A;
  --text:#F3F8FF; --text-2:#B6C4D8; --text-3:#7C8CA3;
  --radius-lg:20px; --radius-sm:14px; --radius-tag:8px;
  --shadow:0 12px 32px rgba(0,0,0,.28);
  --shadow-hover:0 18px 48px rgba(0,0,0,.38),0 0 0 1px rgba(45,226,230,.24);
  --ease:180ms ease;
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --font-mono:"DIN Alternate","Bahnschrift","SFMono-Regular",Consolas,monospace;
  --section:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;padding-top:72px;
  background:var(--bg-0);color:var(--text);
  font-family:var(--font-sans);font-size:17px;line-height:1.76;font-weight:400;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background:
    radial-gradient(760px 420px at 12% -6%,rgba(45,226,230,.13),transparent 68%),
    radial-gradient(620px 380px at 92% 4%,rgba(15,184,201,.09),transparent 70%),
    linear-gradient(180deg,#05080F 0%,#0A111D 46%,#05080F 100%);
}
body::after{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;opacity:.5;
  background-image:linear-gradient(rgba(160,200,230,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(160,200,230,.045) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(circle at 50% 20%,#000 0%,transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 50% 20%,#000 0%,transparent 78%);
}
h1,h2,h3,h4,h5,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none;transition:color var(--ease)}
a:hover{color:#fff}
button{font-family:inherit}
::selection{background:rgba(45,226,230,.28);color:#fff}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px;position:relative;z-index:1}
.wrap-wide{max-width:1320px;margin:0 auto;padding:0 24px;position:relative;z-index:1}
main{position:relative;z-index:1}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;height:72px;z-index:90;
  background:rgba(5,8,15,.72);
  -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
}
.header-inner{height:100%;display:flex;align-items:center;gap:22px}
.logo{font-size:20px;font-weight:800;color:#fff;letter-spacing:.2px;white-space:nowrap}
.logo em{font-style:normal;color:var(--primary);text-shadow:0 0 18px rgba(45,226,230,.45)}
.logo:hover{color:#fff}
.nav-main{display:flex;align-items:center;gap:26px;margin-left:10px}
.nav-main a{
  position:relative;font-size:15px;color:var(--text-2);padding:6px 0;font-weight:500;
}
.nav-main a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:var(--primary);transform:scaleX(0);transform-origin:left;transition:transform var(--ease);box-shadow:0 0 10px rgba(45,226,230,.7);
}
.nav-main a:hover{color:#fff}
.nav-main a:hover::after{transform:scaleX(1)}
.nav-main a.active{color:#fff}
.nav-main a.active::after{transform:scaleX(1)}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:14px}
.badge-live{
  display:inline-flex;align-items:center;gap:7px;font-size:12px;color:var(--text-2);
  border:1px solid var(--line);border-radius:999px;padding:6px 12px;background:rgba(15,26,43,.55);
}
.dot{width:6px;height:6px;border-radius:50%;background:var(--danger);box-shadow:0 0 9px rgba(255,92,122,.9);animation:pulse 1.9s infinite ease-in-out}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.45;transform:scale(.82)}}
.countdown{
  display:inline-flex;align-items:center;gap:8px;font-family:var(--font-mono);
  font-size:13px;color:var(--accent);border:1px solid rgba(255,181,71,.42);
  border-radius:999px;padding:6px 12px;font-variant-numeric:tabular-nums;
}
.cd-label{font-family:var(--font-sans);font-size:11px;color:rgba(255,181,71,.8);letter-spacing:.5px}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
  background:rgba(15,26,43,.7);color:var(--text);cursor:pointer;align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:currentColor;position:relative;border-radius:2px}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;border-radius:2px}
.nav-toggle span::before{top:-6px}.nav-toggle span::after{top:6px}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:14px 28px;border-radius:999px;border:0;
  font-size:15px;font-weight:700;cursor:pointer;text-decoration:none;
  transition:transform var(--ease),box-shadow var(--ease),filter var(--ease),background var(--ease),color var(--ease);
}
.btn-primary{
  color:#031018;background:linear-gradient(135deg,var(--primary),var(--primary-strong));
  box-shadow:0 8px 30px rgba(45,226,230,.25);
}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.05);box-shadow:0 14px 38px rgba(45,226,230,.36);color:#031018}
.btn-primary:active{transform:translateY(0) scale(.98)}
.btn-ghost{
  background:rgba(15,26,43,.5);color:var(--text);border:1px solid var(--line-strong);
}
.btn-ghost:hover{background:rgba(45,226,230,.12);color:#fff;transform:translateY(-2px);border-color:rgba(45,226,230,.4)}
.btn-ghost:active{transform:translateY(0) scale(.98)}
.btn-sm{min-height:40px;padding:10px 18px;font-size:14px}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--primary);
  border-bottom:1px solid rgba(45,226,230,.35);padding-bottom:2px;
}
.link-arrow:hover{color:#fff;border-bottom-color:#fff}
.link-arrow::after{content:"→";transition:transform var(--ease)}
.link-arrow:hover::after{transform:translateX(3px)}

/* ---------- drawer ---------- */
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);z-index:120;
  background:rgba(10,17,29,.96);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);
  border-left:1px solid var(--line);padding:22px;display:flex;flex-direction:column;gap:8px;
  transform:translateX(102%);transition:transform 260ms ease;
}
.drawer.is-open{transform:translateX(0)}
.drawer .drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
.drawer .logo{font-size:17px}
.drawer-close{width:36px;height:36px;border-radius:10px;border:1px solid var(--line);background:transparent;color:var(--text-2);font-size:18px;cursor:pointer;line-height:1}
.drawer a.d-link{
  font-size:16px;color:var(--text-2);padding:12px 4px;border-bottom:1px solid rgba(160,200,230,.08);
}
.drawer a.d-link:hover,.drawer a.d-link.active{color:var(--primary)}
.drawer .btn{margin-top:18px;width:100%}
.drawer-mask{
  position:fixed;inset:0;background:rgba(3,6,12,.6);z-index:110;opacity:0;visibility:hidden;transition:opacity 260ms ease,visibility 260ms ease;
}
.drawer-mask.is-open{opacity:1;visibility:visible}

/* ---------- page hero ---------- */
.page-hero{padding:56px 0 8px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:1px;
  color:var(--primary);border:1px solid rgba(45,226,230,.32);border-radius:999px;
  padding:6px 14px;background:rgba(45,226,230,.07);margin-bottom:20px;
}
.eyebrow i{width:5px;height:5px;background:var(--primary);border-radius:50%;box-shadow:0 0 8px var(--primary)}
.page-hero h1{
  font-size:clamp(2.1rem,3.9vw,3.15rem);line-height:1.16;font-weight:800;letter-spacing:0;
}
.page-hero h1 .kw{color:#fff}
.page-hero h1 .cat{
  display:inline-block;color:var(--primary);
  background:linear-gradient(120deg,var(--primary),#7BF3F5);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}
.page-hero .lede{color:var(--text-2);font-size:17px;max-width:56ch;margin-top:18px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.tag-pill{
  font-size:12.5px;color:var(--text-2);border:1px solid var(--line);border-radius:var(--radius-tag);
  padding:7px 12px;background:rgba(15,26,43,.55);
}
.hero-card{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid var(--line);background:var(--glass);box-shadow:var(--shadow);
  margin-top:8px;
}
.hero-card::before{
  content:"";position:absolute;inset:0;z-index:2;pointer-events:none;
  background:linear-gradient(180deg,rgba(5,8,15,.15) 0%,rgba(5,8,15,.72) 78%);
}
.hero-card img{width:100%;height:100%;aspect-ratio:16/11;object-fit:cover;object-position:center 35%}
.hero-card .hc-meta{
  position:absolute;z-index:3;left:18px;right:18px;bottom:16px;display:flex;align-items:center;justify-content:space-between;gap:12px;
}
.hero-card .hc-title{font-size:15px;font-weight:600;color:#fff}
.hero-card .hc-badge{
  font-size:11.5px;color:#031018;background:linear-gradient(135deg,var(--primary),var(--primary-strong));
  border-radius:999px;padding:5px 12px;font-weight:700;white-space:nowrap;
}
.hero-card .hc-scan{
  position:absolute;z-index:2;left:0;right:0;top:0;height:36%;
  background:linear-gradient(180deg,rgba(45,226,230,.16),transparent);
  opacity:.5;pointer-events:none;
}

/* ---------- sections ---------- */
.section{padding:var(--section) 0 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap}
.section-head h2{font-size:clamp(1.5rem,2.4vw,2rem);font-weight:700;line-height:1.3}
.section-head p{color:var(--text-3);font-size:14px;margin-top:8px;max-width:60ch}
.section-head .sh-line{flex:1;height:1px;background:linear-gradient(90deg,var(--line-strong),transparent);margin-bottom:12px;min-width:40px}

/* filter bar */
.filter-bar{
  display:flex;flex-wrap:wrap;gap:10px;padding:16px 18px;border-radius:var(--radius-sm);
  background:var(--glass);border:1px solid var(--line);box-shadow:0 1px 0 rgba(255,255,255,.04) inset;
  margin-bottom:30px;
}
.chip{
  font-size:13.5px;padding:8px 16px;border-radius:var(--radius-tag);cursor:pointer;
  border:1px solid var(--line);background:rgba(10,17,29,.6);color:var(--text-2);
  transition:all var(--ease);font-weight:500;
}
.chip:hover{color:#fff;border-color:rgba(45,226,230,.4);background:rgba(45,226,230,.08)}
.chip.is-active{color:#fff;border-color:rgba(45,226,230,.55);background:rgba(45,226,230,.14);box-shadow:0 0 0 1px rgba(45,226,230,.2),0 6px 18px rgba(45,226,230,.12)}

/* post cards */
.post-cell{margin-bottom:26px}
.post-card{
  height:100%;display:flex;flex-direction:column;overflow:hidden;
  border-radius:var(--radius-lg);background:var(--glass);border:1px solid var(--line);
  box-shadow:var(--shadow);transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(45,226,230,.28)}
.post-thumb{position:relative;overflow:hidden;aspect-ratio:16/9;background:var(--bg-2)}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 520ms ease}
.post-card:hover .post-thumb img{transform:scale(1.04)}
.post-cat{
  position:absolute;left:12px;top:12px;z-index:2;font-size:11.5px;font-weight:700;
  color:#031018;background:linear-gradient(135deg,var(--primary),var(--primary-strong));
  border-radius:var(--radius-tag);padding:4px 10px;letter-spacing:.3px;
}
.post-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:12px;flex:1}
.post-title{font-size:19.5px;line-height:1.45;font-weight:700;color:var(--text)}
.post-title a{color:inherit;text-decoration:none}
.post-title a:hover{color:var(--primary)}
.post-excerpt{
  font-size:14.5px;line-height:1.7;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-meta{
  margin-top:auto;padding-top:14px;border-top:1px dashed rgba(160,200,230,.14);
  display:flex;align-items:center;gap:14px;font-size:12.5px;color:var(--text-3);flex-wrap:wrap;
}
.post-meta .m-dot{width:3px;height:3px;border-radius:50%;background:var(--text-3)}
.post-meta .m-link{margin-left:auto;color:var(--primary);font-weight:600}
.post-meta .m-link:hover{color:#fff}

.more-row{display:flex;justify-content:center;margin-top:6px}
.empty-note{
  display:none;text-align:center;padding:48px 20px;border-radius:var(--radius-lg);
  background:var(--glass);border:1px dashed var(--line-strong);color:var(--text-3);font-size:14.5px;
}
.empty-note.is-show{display:block}

/* faq */
.faq-list{display:grid;gap:14px}
.faq-item{
  position:relative;border-radius:var(--radius-sm);background:var(--glass);border:1px solid var(--line);
  overflow:hidden;transition:border-color var(--ease),box-shadow var(--ease);
}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--primary);
  opacity:0;transition:opacity var(--ease);
}
.faq-item.is-open{border-color:rgba(45,226,230,.3);box-shadow:0 12px 32px rgba(0,0,0,.28)}
.faq-item.is-open::before{opacity:1}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;background:transparent;border:0;cursor:pointer;text-align:left;
  font-size:16px;font-weight:600;color:var(--text);line-height:1.5;
}
.faq-q:hover{color:#fff}
.faq-icon{
  flex:0 0 auto;width:22px;height:22px;position:relative;transition:transform 220ms ease;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--primary);border-radius:2px;
}
.faq-icon::before{left:2px;right:2px;top:10px;height:2px}
.faq-icon::after{left:10px;top:2px;bottom:2px;width:2px;transition:opacity 220ms ease}
.faq-item.is-open .faq-icon{transform:rotate(180deg)}
.faq-item.is-open .faq-icon::after{opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height 280ms ease}
.faq-a-inner{padding:0 22px 22px;color:var(--text-2);font-size:15px;line-height:1.8}
.faq-a-inner ul{display:grid;gap:8px;margin-top:10px}
.faq-a-inner li{position:relative;padding-left:16px}
.faq-a-inner li::before{content:"";position:absolute;left:0;top:11px;width:5px;height:5px;border-radius:50%;background:var(--primary)}

/* CTA band */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);
  background:linear-gradient(120deg,rgba(15,26,43,.92),rgba(10,17,29,.86));
  border:1px solid var(--line);box-shadow:var(--shadow);
  padding:36px 36px;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-band::before{
  content:"";position:absolute;width:340px;height:340px;right:-80px;top:-140px;border-radius:50%;
  background:radial-gradient(circle,rgba(45,226,230,.22),transparent 68%);pointer-events:none;
}
.cta-band::after{
  content:"";position:absolute;width:260px;height:260px;left:-70px;bottom:-150px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,181,71,.14),transparent 70%);pointer-events:none;
}
.cta-band .cta-text{position:relative;z-index:2;max-width:640px}
.cta-band h2{font-size:clamp(1.3rem,2.2vw,1.75rem);font-weight:700;margin-bottom:8px}
.cta-band p{color:var(--text-2);font-size:14.5px}
.cta-band .btn{position:relative;z-index:2}

/* footer */
.site-footer{
  margin-top:96px;background:#03060C;border-top:1px solid var(--line);padding:64px 0 28px;
  position:relative;z-index:1;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand .logo{font-size:19px}
.footer-brand p{color:var(--text-3);font-size:14px;line-height:1.8;margin-top:14px;max-width:38ch}
.footer-badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.footer-badges span{
  font-size:11.5px;color:var(--text-2);border:1px solid var(--line);border-radius:var(--radius-tag);
  padding:5px 10px;background:rgba(15,26,43,.6);
}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.4px}
.footer-col ul{display:grid;gap:11px}
.footer-col a{font-size:14px;color:var(--text-3)}
.footer-col a:hover{color:var(--primary)}
.footer-contact li{font-size:13.5px;color:var(--text-3);line-height:1.6}
.footer-contact strong{display:block;color:var(--text-2);font-weight:600;font-size:13px}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(160,200,230,.09);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom .legal{font-size:12.5px;color:var(--text-3);max-width:76ch;line-height:1.7}
.footer-bottom .tech{font-size:12.5px;color:rgba(124,140,163,.7);font-family:var(--font-mono)}

/* to top */
.to-top{
  position:fixed;right:20px;bottom:24px;z-index:70;width:44px;height:44px;border-radius:14px;
  border:1px solid var(--line-strong);background:rgba(10,17,29,.86);color:var(--text-2);
  cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:16px;
  opacity:0;visibility:hidden;transition:all var(--ease);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
}
.to-top.is-show{opacity:1;visibility:visible}
.to-top:hover{color:var(--primary);border-color:rgba(45,226,230,.45);transform:translateY(-2px)}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  :root{--section:80px}
  .nav-main{gap:20px}
  .countdown .cd-label{display:none}
}
@media (max-width:991px){
  body{padding-top:64px}
  .site-header{height:64px}
  .nav-main{display:none}
  .badge-live{display:none}
  .nav-toggle{display:inline-flex}
  .header-actions{gap:10px}
  .page-hero{padding:40px 0 4px}
  .hero-card{margin-top:28px;max-width:520px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  :root{--section:72px}
}
@media (max-width:767px){
  body{font-size:16px}
  .wrap,.wrap-wide{padding:0 16px}
  :root{--section:56px}
  .page-hero h1{font-size:clamp(1.85rem,7vw,2.4rem)}
  .page-hero .lede{font-size:15.5px}
  .section-head{margin-bottom:24px}
  .post-body{padding:18px 18px 20px}
  .post-title{font-size:17.5px}
  .cta-band{padding:26px 22px}
  .cta-band .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .site-footer{margin-top:64px;padding-top:48px}
  .countdown{display:none}
}
@media (max-width:479px){
  .header-actions .btn{display:none}
  .hero-tags{gap:8px}
  .tag-pill{font-size:11.5px}
  .filter-bar{padding:12px;gap:8px}
  .chip{padding:7px 12px;font-size:12.5px}
  .faq-q{font-size:15px;padding:16px 16px}
  .faq-a-inner{padding:0 16px 18px}
  .btn{width:100%}
  .more-row .btn{width:auto}
}

/* roulang page: category2 */
:root{
  --bg-0:#05080F;
  --bg-1:#0A111D;
  --bg-2:#0F1A2B;
  --glass:rgba(15,26,43,.72);
  --glass-strong:rgba(15,26,43,.9);
  --line:rgba(160,200,230,.12);
  --line-strong:rgba(160,200,230,.22);
  --primary:#2DE2E6;
  --primary-strong:#0FB8C9;
  --accent:#FFB547;
  --danger:#FF5C7A;
  --text:#F3F8FF;
  --text-2:#B6C4D8;
  --text-3:#7C8CA3;
  --radius-lg:20px;
  --radius-md:14px;
  --radius-sm:8px;
  --pill:999px;
  --shadow:0 12px 32px rgba(0,0,0,.28);
  --shadow-hover:0 18px 48px rgba(0,0,0,.38),0 0 0 1px rgba(45,226,230,.24);
  --font-body:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --font-num:"DIN Alternate","Bahnschrift","SFMono-Regular",Consolas,monospace;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  padding-top:72px;
  background:
    radial-gradient(circle at 12% 8%,rgba(45,226,230,.12),transparent 28%),
    radial-gradient(circle at 88% 28%,rgba(45,226,230,.07),transparent 24%),
    linear-gradient(180deg,#05080F 0%,#0A111D 48%,#05080F 100%);
  color:var(--text);
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(160,200,230,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(160,200,230,.035) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.92),transparent 82%);
}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .18s ease,opacity .18s ease,transform .18s ease;}
a:hover{color:#fff;}
button,input,textarea,select{font:inherit;}
button{cursor:pointer;}
h1,h2,h3,h4,p{margin-top:0;}
h1,h2,h3,h4{color:var(--text);}
h2{font-size:clamp(1.6rem,2.4vw,2rem);line-height:1.28;font-weight:700;margin-bottom:16px;}
h3{font-size:1.375rem;line-height:1.4;font-weight:600;margin-bottom:12px;}
p{color:var(--text-2);}
ul{list-style:none;margin:0;padding:0;}
::selection{background:rgba(45,226,230,.28);color:#fff;}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px;position:relative;z-index:1;}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px;position:relative;z-index:1;}
.section{padding:96px 0;position:relative;z-index:1;}
.section-tight{padding:72px 0;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  color:var(--primary);
  font-size:12px;line-height:18px;
  font-weight:700;letter-spacing:.12em;
  text-transform:uppercase;
  background:rgba(45,226,230,.07);
  border:1px solid rgba(45,226,230,.2);
  border-radius:var(--pill);
  padding:7px 12px;
}
.section-head{max-width:760px;margin-bottom:42px;}
.section-head p{font-size:16px;line-height:1.9;margin-bottom:0;}
.glass{
  background:var(--glass);
  border:1px solid var(--line);
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.045);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  min-height:48px;padding:14px 28px;
  border-radius:var(--pill);
  border:1px solid transparent;
  font-weight:700;font-size:15px;line-height:1.2;
  transition:all .18s ease;
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,var(--primary),var(--primary-strong));
  color:#031018;
  box-shadow:0 8px 30px rgba(45,226,230,.25);
}
.btn-primary:hover{
  color:#031018;transform:translateY(-2px);filter:brightness(1.05);
  box-shadow:0 12px 38px rgba(45,226,230,.36);
}
.btn-primary:active{transform:translateY(0) scale(.98);}
.btn-secondary{
  background:rgba(15,26,43,.58);
  border-color:var(--line-strong);
  color:var(--text);
}
.btn-secondary:hover{background:rgba(45,226,230,.12);border-color:rgba(45,226,230,.4);color:#fff;transform:translateY(-2px);}
.btn-ghost{
  min-height:auto;padding:4px 0;
  background:transparent;color:var(--primary);
  border:0;border-radius:0;
  border-bottom:1px solid rgba(45,226,230,.35);
}
.btn-ghost:hover{color:#fff;border-bottom-color:#fff;gap:14px;}
.btn-sm{min-height:38px;padding:9px 18px;font-size:13px;}
.badge{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 11px;border-radius:var(--pill);
  font-size:12px;line-height:1.2;font-weight:600;
  border:1px solid var(--line);
  background:rgba(15,26,43,.6);
  color:var(--text-2);
}
.badge-primary{border-color:rgba(45,226,230,.32);background:rgba(45,226,230,.08);color:var(--primary);}
.badge-accent{border-color:rgba(255,181,71,.38);background:rgba(255,181,71,.08);color:var(--accent);}
.status-dot{
  width:7px;height:7px;border-radius:50%;background:var(--danger);
  box-shadow:0 0 0 4px rgba(255,92,122,.12),0 0 12px rgba(255,92,122,.6);
  display:inline-block;
}
.status-dot.cyan{background:var(--primary);box-shadow:0 0 0 4px rgba(45,226,230,.12),0 0 12px rgba(45,226,230,.55);}
.status-dot.amber{background:var(--accent);box-shadow:0 0 0 4px rgba(255,181,71,.12),0 0 12px rgba(255,181,71,.55);}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums;letter-spacing:.02em;}

/* header */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  height:72px;
  background:rgba(5,8,15,.78);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  transition:box-shadow .2s ease,background .2s ease;
}
.site-header.scrolled{
  background:rgba(5,8,15,.94);
  box-shadow:0 14px 38px rgba(0,0,0,.36);
}
.header-inner{
  height:72px;max-width:1320px;margin:0 auto;padding:0 24px;
  display:flex;align-items:center;gap:28px;
}
.logo{
  display:inline-flex;align-items:center;flex-shrink:0;
  color:#fff;font-size:18px;font-weight:800;letter-spacing:.02em;
}
.logo em{font-style:normal;color:var(--primary);margin-right:2px;text-shadow:0 0 18px rgba(45,226,230,.4);}
.nav-main{display:flex;align-items:center;gap:26px;height:72px;}
.nav-main a{
  position:relative;height:72px;display:inline-flex;align-items:center;
  color:var(--text-2);font-size:14.5px;font-weight:500;
}
.nav-main a::after{
  content:"";position:absolute;left:0;right:0;bottom:19px;height:2px;
  background:var(--primary);border-radius:2px;
  transform:scaleX(0);transform-origin:center;
  transition:transform .18s ease;box-shadow:0 0 12px rgba(45,226,230,.55);
}
.nav-main a:hover,.nav-main a.active{color:#fff;}
.nav-main a:hover::after,.nav-main a.active::after{transform:scaleX(1);}
.header-tools{margin-left:auto;display:flex;align-items:center;gap:12px;}
.countdown-chip{
  display:inline-flex;align-items:center;gap:8px;
  min-height:34px;padding:6px 12px;border-radius:var(--pill);
  color:var(--accent);
  border:1px solid rgba(255,181,71,.45);
  background:rgba(255,181,71,.07);
  font-size:12px;white-space:nowrap;
}
.countdown-chip .countdown-label{color:rgba(255,181,71,.82);}
.countdown-chip .countdown-time{font-family:var(--font-num);font-size:12px;letter-spacing:.04em;color:#FFD08B;}
.live-badge{
  display:inline-flex;align-items:center;gap:7px;
  color:var(--primary);font-size:12px;font-weight:600;
  border:1px solid rgba(45,226,230,.28);
  background:rgba(45,226,230,.07);
  border-radius:var(--pill);padding:7px 11px;white-space:nowrap;
}
.live-badge i{font-size:6px;color:var(--primary);}
.menu-toggle{
  display:none;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:12px;
  background:rgba(15,26,43,.7);color:#fff;
  border:1px solid var(--line-strong);margin-left:auto;
}
.menu-toggle:hover{background:rgba(45,226,230,.12);border-color:rgba(45,226,230,.38);}

/* mobile drawer */
.drawer-backdrop{
  position:fixed;inset:0;z-index:190;background:rgba(0,0,0,.62);
  opacity:0;visibility:hidden;transition:all .22s ease;
}
.drawer-backdrop.open{opacity:1;visibility:visible;}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;z-index:200;
  width:min(86vw,360px);
  padding:24px;
  background:rgba(8,14,24,.98);
  border-left:1px solid var(--line-strong);
  box-shadow:-24px 0 70px rgba(0,0,0,.48);
  transform:translateX(102%);
  transition:transform .25s ease;
  overflow-y:auto;
}
.mobile-drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:28px;}
.drawer-close{width:40px;height:40px;border-radius:10px;background:rgba(15,26,43,.8);color:#fff;border:1px solid var(--line);}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:28px;}
.drawer-nav a{
  color:var(--text-2);font-size:16px;padding:13px 12px;border-radius:10px;
  border-left:2px solid transparent;
}
.drawer-nav a:hover,.drawer-nav a.active{
  color:#fff;background:rgba(45,226,230,.08);border-left-color:var(--primary);
}
.drawer-meta{display:flex;flex-direction:column;gap:12px;margin-bottom:26px;}
.drawer-cta{display:block;text-align:center;}

/* hero */
.hero-event{
  position:relative;overflow:hidden;
  padding:84px 0 78px;
  border-bottom:1px solid var(--line);
}
.hero-event::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(circle at 78% 28%,rgba(45,226,230,.16),transparent 32%),
    linear-gradient(180deg,rgba(5,8,15,0),rgba(5,8,15,.72));
}
.hero-event::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.35;
  background:repeating-linear-gradient(180deg,transparent 0,transparent 5px,rgba(45,226,230,.018) 6px,transparent 7px);
}
.hero-grid{position:relative;z-index:2;align-items:center;min-height:520px;}
.hero-copy{position:relative;z-index:2;padding-right:32px;}
.hero-copy h1{
  margin:22px 0 22px;
  font-size:clamp(2.25rem,4.2vw,4rem);
  line-height:1.14;font-weight:800;letter-spacing:0;
}
.brand-accent{color:var(--primary);text-shadow:0 0 30px rgba(45,226,230,.18);}
.hero-sub{
  max-width:620px;font-size:18px;line-height:1.95;color:var(--text-2);
  margin-bottom:0;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin:30px 0 22px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:9px;}
.hero-tags .badge{font-weight:500;color:var(--text-2);}
.hero-countdown{
  display:inline-flex;align-items:center;gap:12px;flex-wrap:wrap;
  margin-top:22px;padding:10px 14px;border-radius:var(--pill);
  border:1px solid rgba(255,181,71,.32);
  background:rgba(255,181,71,.06);
  color:var(--accent);font-size:13px;
}
.hero-countdown strong{font-family:var(--font-num);font-size:15px;color:#FFD08B;letter-spacing:.04em;}
.hero-visual{position:relative;z-index:2;display:flex;justify-content:flex-end;}
.hero-frame{
  position:relative;width:min(100%,420px);aspect-ratio:4/5;
  border-radius:24px;overflow:hidden;
  background:var(--bg-2);
  border:1px solid rgba(160,200,230,.24);
  box-shadow:0 28px 70px rgba(0,0,0,.48),inset 0 1px 0 rgba(255,255,255,.1);
}
.hero-frame::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,8,15,.05) 0%,rgba(5,8,15,.15) 44%,rgba(5,8,15,.9) 100%);
  pointer-events:none;
}
.hero-frame img{width:100%;height:100%;object-fit:cover;object-position:center 30%;}
.hero-frame-top{position:absolute;top:18px;left:18px;right:18px;z-index:3;display:flex;justify-content:space-between;gap:10px;}
.hero-frame-bottom{position:absolute;left:20px;right:20px;bottom:20px;z-index:3;}
.hero-frame-title{font-size:20px;font-weight:700;line-height:1.4;margin-bottom:8px;}
.hero-frame-meta{display:flex;justify-content:space-between;gap:12px;color:var(--text-2);font-size:13px;margin-bottom:14px;}
.progress-line{height:4px;border-radius:4px;background:rgba(255,255,255,.16);overflow:hidden;}
.progress-line span{display:block;width:58%;height:100%;border-radius:4px;background:linear-gradient(90deg,var(--primary),var(--primary-strong));box-shadow:0 0 14px rgba(45,226,230,.6);}

/* stats */
.stats-section{padding:0 0 8px;position:relative;z-index:3;}
.stats-panel{
  margin-top:-28px;border-radius:var(--radius-lg);
  padding:24px;
}
.stats-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;background:var(--line);border-radius:14px;overflow:hidden;}
.stat-item{background:rgba(10,17,29,.78);padding:22px 20px;}
.stat-value{font-family:var(--font-num);font-size:clamp(1.7rem,3vw,2.35rem);line-height:1;color:var(--primary);font-weight:700;margin-bottom:8px;}
.stat-label{font-size:13px;color:var(--text-2);line-height:1.5;}
.stat-extra{font-size:12px;color:var(--text-3);margin-top:4px;}

/* timeline */
.timeline-section{position:relative;}
.timeline{position:relative;max-width:1020px;margin:0 auto;padding:16px 0 0;}
.timeline::before{
  content:"";position:absolute;top:0;bottom:0;left:50%;width:1px;
  background:linear-gradient(180deg,transparent,rgba(45,226,230,.45) 12%,rgba(45,226,230,.35) 86%,transparent);
}
.timeline-item{position:relative;width:50%;padding:0 56px 42px;box-sizing:border-box;}
.timeline-item:nth-child(odd){margin-left:0;}
.timeline-item:nth-child(even){margin-left:50%;}
.timeline-item:nth-child(odd) .timeline-marker{right:-8px;}
.timeline-item:nth-child(even) .timeline-marker{left:-8px;}
.timeline-marker{
  position:absolute;top:27px;width:15px;height:15px;border-radius:50%;
  background:var(--primary);border:3px solid #08111D;
  box-shadow:0 0 0 1px rgba(45,226,230,.55),0 0 18px rgba(45,226,230,.65);
  z-index:2;
}
.timeline-card{
  position:relative;border-radius:var(--radius-lg);padding:22px;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.timeline-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(45,226,230,.3);}
.event-date{display:flex;align-items:center;gap:9px;flex-wrap:wrap;margin-bottom:12px;}
.event-date .day{font-family:var(--font-num);font-size:13px;color:var(--accent);letter-spacing:.03em;}
.event-main{display:flex;gap:18px;align-items:flex-start;}
.event-copy{flex:1;min-width:0;}
.event-copy h3{font-size:18px;line-height:1.45;margin-bottom:8px;}
.event-copy p{font-size:14px;line-height:1.75;margin-bottom:14px;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.event-thumb{
  width:104px;height:104px;flex:0 0 104px;border-radius:14px;overflow:hidden;
  border:1px solid var(--line);background:var(--bg-2);
}
.event-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.timeline-card:hover .event-thumb img{transform:scale(1.05);}

/* accordion */
.rules-section{padding-top:72px;}
.rules-layout{display:grid;grid-template-columns:minmax(0,.82fr) minmax(0,1.18fr);gap:48px;align-items:start;}
.rules-intro{position:sticky;top:104px;}
.rules-intro p{font-size:15px;line-height:1.9;margin-bottom:22px;}
.rules-note{
  display:flex;gap:12px;align-items:flex-start;padding:16px;
  border-radius:14px;border:1px solid rgba(255,181,71,.22);
  background:rgba(255,181,71,.055);color:var(--text-2);font-size:13px;line-height:1.7;
}
.rules-note i{color:var(--accent);margin-top:3px;}
.accordion-list{display:flex;flex-direction:column;gap:14px;}
.acc-item{
  border-radius:14px;border:1px solid var(--line);
  background:rgba(15,26,43,.6);
  overflow:hidden;
  transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;
}
.acc-item.open{border-color:rgba(45,226,230,.42);background:rgba(15,26,43,.82);box-shadow:0 0 0 1px rgba(45,226,230,.1),0 14px 32px rgba(0,0,0,.2);}
.acc-trigger{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:19px 21px;background:transparent;border:0;color:var(--text);
  font-size:16px;line-height:1.55;font-weight:600;text-align:left;
}
.acc-trigger:hover{color:var(--primary);}
.acc-trigger i{color:var(--text-3);transition:transform .2s ease,color .2s ease;font-size:14px;}
.acc-item.open .acc-trigger i{transform:rotate(45deg);color:var(--primary);}
.acc-panel{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.acc-body{padding:0 21px 21px;border-left:3px solid var(--primary);margin-left:0;color:var(--text-2);font-size:15px;line-height:1.85;}
.acc-body p{margin-bottom:0;font-size:15px;line-height:1.85;color:var(--text-2);}
.acc-body ul{margin-top:10px;display:flex;flex-direction:column;gap:6px;}
.acc-body li{position:relative;padding-left:16px;font-size:14px;color:var(--text-2);}
.acc-body li::before{content:"";position:absolute;left:0;top:10px;width:5px;height:5px;border-radius:50%;background:var(--primary);}

/* watch guide */
.watch-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:46px;align-items:center;}
.watch-visual{position:relative;border-radius:22px;overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow);}
.watch-visual img{width:100%;aspect-ratio:16/10;object-fit:cover;object-position:center 40%;}
.watch-visual::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,8,15,.02),rgba(5,8,15,.55));}
.watch-tag{
  position:absolute;left:18px;bottom:18px;z-index:2;
  display:inline-flex;align-items:center;gap:8px;
  color:var(--text);font-size:13px;padding:8px 12px;border-radius:var(--pill);
  background:rgba(5,8,15,.65);border:1px solid var(--line-strong);backdrop-filter:blur(10px);
}
.watch-copy h2{margin-bottom:16px;}
.watch-copy > p{font-size:16px;line-height:1.9;margin-bottom:26px;}
.step-list{display:flex;flex-direction:column;gap:18px;}
.step-list li{display:flex;gap:16px;align-items:flex-start;}
.step-num{
  flex:0 0 38px;height:38px;border-radius:11px;
  display:inline-flex;align-items:center;justify-content:center;
  font-family:var(--font-num);font-size:14px;color:var(--primary);
  background:rgba(45,226,230,.08);border:1px solid rgba(45,226,230,.22);
}
.step-text strong{display:block;font-size:15px;color:var(--text);margin-bottom:3px;}
.step-text span{display:block;font-size:14px;line-height:1.7;color:var(--text-2);}

/* CTA */
.cta-section{padding-top:32px;padding-bottom:96px;}
.cta-band{
  position:relative;overflow:hidden;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  padding:40px 42px;border-radius:24px;
  border:1px solid rgba(45,226,230,.22);
  background:
    linear-gradient(90deg,rgba(15,26,43,.94),rgba(15,26,43,.7)),
    url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.06);
}
.cta-band::before{
  content:"";position:absolute;right:-80px;top:-100px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(45,226,230,.18),transparent 68%);pointer-events:none;
}
.cta-copy{position:relative;z-index:2;max-width:720px;}
.cta-copy h2{font-size:clamp(1.5rem,2.4vw,2rem);margin-bottom:10px;}
.cta-copy p{margin-bottom:0;font-size:15px;line-height:1.8;color:var(--text-2);}
.cta-action{position:relative;z-index:2;flex-shrink:0;}

/* footer */
.site-footer{
  position:relative;z-index:1;
  background:#04070D;
  border-top:1px solid var(--line);
  padding:64px 0 24px;
}
.footer-grid{display:grid;grid-template-columns:1.35fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:44px;}
.footer-brand .logo{margin-bottom:16px;font-size:19px;}
.footer-brand p{font-size:14px;line-height:1.8;max-width:340px;margin-bottom:18px;}
.footer-badges{display:flex;flex-wrap:wrap;gap:8px;}
.footer-badges span{
  font-size:12px;color:var(--text-2);padding:6px 10px;border-radius:var(--pill);
  background:rgba(15,26,43,.6);border:1px solid var(--line);
}
.footer-col h4{font-size:14px;color:var(--text);margin-bottom:16px;font-weight:700;letter-spacing:.03em;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col li{font-size:14px;color:var(--text-2);line-height:1.6;}
.footer-col a{color:var(--text-2);font-size:14px;}
.footer-col a:hover{color:var(--primary);}
.footer-contact li{font-size:13px;line-height:1.7;color:var(--text-2);}
.footer-contact strong{display:inline-block;color:var(--text);font-weight:600;margin-right:6px;}
.footer-bottom{
  display:flex;align-items:flex-start;justify-content:space-between;gap:24px;
  border-top:1px solid var(--line);padding-top:22px;
}
.legal{font-size:12.5px;line-height:1.8;color:var(--text-3);margin-bottom:0;max-width:920px;}
.tech{font-family:var(--font-num);font-size:12px;color:var(--text-3);margin-bottom:0;white-space:nowrap;}

/* reveal */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .6s ease,transform .6s ease;}
.reveal.visible{opacity:1;transform:none;}

@media (max-width:1199px){
  .header-inner{gap:18px;}
  .nav-main{gap:18px;}
  .nav-main a{font-size:13.5px;}
  .countdown-chip .countdown-label{display:none;}
  .hero-copy{padding-right:16px;}
  .hero-frame{width:min(100%,380px);}
  .footer-grid{gap:26px;}
}
@media (max-width:991px){
  body{padding-top:64px;}
  .site-header,.header-inner{height:64px;}
  .header-inner{padding:0 18px;}
  .nav-main,.header-tools{display:none;}
  .menu-toggle{display:inline-flex;}
  .hero-event{padding:58px 0 52px;}
  .hero-grid{min-height:0;}
  .hero-copy{padding-right:0;margin-bottom:38px;}
  .hero-visual{justify-content:center;}
  .hero-frame{width:min(100%,360px);}
  .stats-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .timeline::before{left:7px;}
  .timeline-item{width:100%;margin-left:0!important;padding:0 0 30px 34px;}
  .timeline-item:nth-child(odd) .timeline-marker,.timeline-item:nth-child(even) .timeline-marker{left:0;right:auto;}
  .timeline-marker{top:23px;width:14px;height:14px;}
  .rules-layout,.watch-grid{grid-template-columns:1fr;gap:32px;}
  .rules-intro{position:static;}
  .footer-grid{grid-template-columns:1.2fr 1fr 1fr;}
  .footer-brand{grid-column:1/-1;}
  .cta-band{padding:32px;align-items:flex-start;flex-direction:column;}
  .section{padding:72px 0;}
  .section-tight{padding:56px 0;}
}
@media (max-width:767px){
  .container,.wrap{padding-left:16px;padding-right:16px;}
  .section{padding:56px 0;}
  .section-tight{padding:44px 0;}
  .hero-copy h1{font-size:clamp(2rem,8vw,2.8rem);}
  .hero-sub{font-size:16px;line-height:1.85;}
  .hero-frame{width:min(100%,320px);}
  .hero-actions{gap:10px;}
  .stats-panel{padding:16px;margin-top:-18px;}
  .stat-item{padding:18px 16px;}
  .event-main{gap:14px;}
  .event-thumb{width:88px;height:88px;flex-basis:88px;}
  .timeline-card{padding:18px;}
  .cta-section{padding-bottom:64px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .footer-brand{grid-column:1/-1;}
  .footer-bottom{flex-direction:column;gap:10px;}
  .rules-layout{gap:24px;}
  .watch-grid{gap:26px;}
}
@media (max-width:520px){
  body{font-size:16px;line-height:1.75;}
  .logo{font-size:16px;}
  .hero-copy h1{font-size:2rem;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .hero-countdown{width:100%;justify-content:space-between;}
  .stats-grid{grid-template-columns:1fr 1fr;}
  .timeline-item{padding-left:28px;}
  .event-main{display:block;}
  .event-thumb{width:100%;height:156px;flex-basis:auto;margin-bottom:14px;}
  .event-thumb img{object-position:center;}
  .event-copy h3{font-size:17px;}
  .acc-trigger{padding:17px 16px;font-size:15px;}
  .acc-body{padding:0 16px 18px;}
  .cta-band{padding:26px 20px;}
  .cta-action,.cta-action .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-brand{grid-column:auto;}
  .hero-tags .badge{font-size:11px;}
}

/* roulang page: category4 */
:root{
  --bg-0:#05080F;
  --bg-1:#0A111D;
  --bg-2:#0F1A2B;
  --glass:rgba(15,26,43,.72);
  --glass-soft:rgba(15,26,43,.52);
  --line:rgba(160,200,230,.12);
  --line-strong:rgba(160,200,230,.22);
  --primary:#2DE2E6;
  --primary-strong:#0FB8C9;
  --accent:#FFB547;
  --danger:#FF5C7A;
  --text:#F3F8FF;
  --text-2:#B6C4D8;
  --text-3:#7C8CA3;
  --r-lg:20px;
  --r-sm:14px;
  --r-tag:8px;
  --r-btn:999px;
  --shadow:0 12px 32px rgba(0,0,0,.28);
  --shadow-hover:0 18px 48px rgba(0,0,0,.38),0 0 0 1px rgba(45,226,230,.24);
  --tr:180ms ease;
  --mono:"DIN Alternate",Bahnschrift,"SFMono-Regular",Consolas,"Liberation Mono",monospace;
  --header-h:72px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  padding-top:var(--header-h);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:17px;
  line-height:1.76;
  color:var(--text);
  background:var(--bg-0);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(160,200,230,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(160,200,230,.045) 1px,transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:radial-gradient(ellipse at 50% 0%,#000 0%,transparent 72%);
  mask-image:radial-gradient(ellipse at 50% 0%,#000 0%,transparent 72%);
}
body::after{
  content:"";position:fixed;top:-260px;left:50%;transform:translateX(-50%);
  width:1100px;height:720px;pointer-events:none;z-index:0;
  background:radial-gradient(circle,rgba(45,226,230,.11),transparent 62%);
  filter:blur(12px);
}
img{max-width:100%;display:block;border-radius:16px}
a{color:var(--primary);text-decoration:none;transition:color var(--tr)}
a:hover{color:#7df3f6}
p{margin:0 0 16px}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.28;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:3px;border-radius:4px}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;position:relative;z-index:1}
.page{position:relative;z-index:1}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;height:var(--header-h);z-index:120;
  background:rgba(5,8,15,.72);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  max-width:1320px;margin:0 auto;height:100%;padding:0 24px;
  display:flex;align-items:center;gap:28px;
}
.logo{
  font-size:19px;font-weight:800;color:var(--text);white-space:nowrap;letter-spacing:.01em;
  display:inline-flex;align-items:baseline;
}
.logo em{font-style:normal;color:var(--primary);text-shadow:0 0 18px rgba(45,226,230,.45)}
.logo:hover{color:var(--text)}
.nav-main{display:flex;align-items:center;gap:26px;margin:0 auto}
.nav-main a{
  position:relative;font-size:15px;font-weight:500;color:var(--text-2);
  padding:8px 0;line-height:1;
}
.nav-main a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:var(--primary);opacity:0;transform:scaleX(.4);transition:all var(--tr);
  box-shadow:0 0 12px rgba(45,226,230,.7);
}
.nav-main a:hover{color:#fff}
.nav-main a:hover::after,.nav-main a.active::after{opacity:1;transform:scaleX(1)}
.nav-main a.active{color:#fff;font-weight:600}
.header-side{display:flex;align-items:center;gap:12px}
.countdown{
  display:inline-flex;align-items:center;gap:8px;height:34px;padding:0 12px;
  border:1px solid rgba(255,181,71,.45);border-radius:var(--r-btn);
  background:rgba(255,181,71,.06);color:var(--accent);font-size:12px;
}
.countdown .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 8px var(--accent)}
.cd-num{font-family:var(--mono);font-size:13px;letter-spacing:.06em;font-weight:700}
.cd-label{color:rgba(255,181,71,.75)}
.live-badge{
  display:inline-flex;align-items:center;gap:6px;height:30px;padding:0 11px;
  font-size:12px;color:var(--text-2);border:1px solid var(--line);border-radius:var(--r-btn);
  background:rgba(15,26,43,.6);
}
.live-badge i{width:6px;height:6px;border-radius:50%;background:var(--danger);box-shadow:0 0 8px var(--danger);animation:pulse 1.8s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}
.menu-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:12px;
  background:rgba(15,26,43,.7);flex-direction:column;justify-content:center;align-items:center;gap:4px;
  cursor:pointer;padding:0;
}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--text-2);border-radius:2px;transition:all var(--tr)}

/* ---------- mobile nav ---------- */
.mobile-nav{
  position:fixed;inset:0;z-index:200;background:rgba(5,8,15,.66);
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
  opacity:0;visibility:hidden;transition:opacity var(--tr),visibility var(--tr);
}
.mobile-nav.open{opacity:1;visibility:visible}
.mobile-nav-panel{
  position:absolute;top:0;right:0;bottom:0;width:min(84vw,340px);
  background:rgba(10,17,29,.96);border-left:1px solid var(--line);
  padding:26px 22px;display:flex;flex-direction:column;gap:6px;
  transform:translateX(100%);transition:transform 260ms ease;
  -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
}
.mobile-nav.open .mobile-nav-panel{transform:translateX(0)}
.mobile-nav-panel .m-title{font-size:13px;color:var(--text-3);margin-bottom:12px;letter-spacing:.08em}
.mobile-nav-panel a.m-link{
  display:block;font-size:16px;color:var(--text-2);padding:14px 4px;
  border-bottom:1px solid rgba(160,200,230,.08);
}
.mobile-nav-panel a.m-link.active{color:var(--primary)}
.mobile-nav-panel .m-cta{margin-top:auto;width:100%}
.m-close{
  position:absolute;top:18px;right:18px;width:36px;height:36px;border-radius:10px;
  border:1px solid var(--line);background:transparent;color:var(--text-2);cursor:pointer;font-size:18px;line-height:1;
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:14px 28px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;line-height:1;border:1px solid transparent;
  cursor:pointer;transition:transform var(--tr),box-shadow var(--tr),background var(--tr),color var(--tr),border-color var(--tr),filter var(--tr);
}
.btn-primary{
  background:linear-gradient(135deg,#2DE2E6,#0FB8C9);
  color:#031018;
  box-shadow:0 8px 30px rgba(45,226,230,.25);
}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.05);box-shadow:0 12px 38px rgba(45,226,230,.38);color:#031018}
.btn-primary:active{transform:translateY(0) scale(.98)}
.btn-ghost{
  background:rgba(15,26,43,.55);color:var(--text);border-color:var(--line-strong);
}
.btn-ghost:hover{background:rgba(45,226,230,.12);color:#fff;border-color:rgba(45,226,230,.5)}
.btn-ghost:active{transform:scale(.98)}
.btn-sm{min-height:38px;padding:9px 18px;font-size:13px}
.btn-block{width:100%}

/* ---------- shared bits ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.10em;
  color:var(--primary);text-transform:uppercase;
  border:1px solid rgba(45,226,230,.28);background:rgba(45,226,230,.07);
  padding:7px 14px;border-radius:var(--r-btn);margin-bottom:22px;
}
.eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px var(--primary)}
.section{padding:88px 0}
.section-head{max-width:720px;margin-bottom:44px}
.section-head h2{font-size:clamp(1.5rem,2.4vw,2rem);font-weight:700;margin-bottom:14px}
.section-head h2 span{color:var(--primary)}
.section-head p{color:var(--text-2);font-size:16px;margin:0}
.tag{
  display:inline-flex;align-items:center;font-size:12px;line-height:1.5;
  padding:5px 11px;border-radius:var(--r-tag);
  color:var(--primary);background:rgba(45,226,230,.10);border:1px solid rgba(45,226,230,.22);
}

/* ---------- hero ---------- */
.help-hero{padding:64px 0 76px;position:relative;overflow:hidden}
.help-hero::after{
  content:"";position:absolute;right:-160px;top:-120px;width:640px;height:640px;
  background:radial-gradient(circle,rgba(45,226,230,.13),transparent 64%);
  pointer-events:none;z-index:0;
}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center}
.help-hero h1{
  font-size:clamp(2.1rem,3.9vw,3.4rem);font-weight:800;line-height:1.18;margin-bottom:20px;
}
.help-hero h1 span{color:var(--primary)}
.hero-sub{font-size:18px;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}
.hero-tags span{
  font-size:12px;color:var(--text-3);border:1px solid var(--line);
  padding:6px 12px;border-radius:var(--r-tag);background:rgba(15,26,43,.5);
}
.hero-media{
  position:relative;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--shadow);background:var(--bg-1);
  box-shadow:0 24px 60px rgba(0,0,0,.45),inset 0 1px 0 rgba(255,255,255,.06);
}
.hero-media img{width:100%;height:100%;aspect-ratio:4/3;object-fit:cover;object-position:center 30%;border-radius:0}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,8,15,.15) 0%,rgba(5,8,15,.55) 62%,rgba(5,8,15,.88) 100%);
}
.hero-media .media-bar{
  position:absolute;left:0;right:0;bottom:0;z-index:2;padding:20px 22px;
  display:flex;align-items:center;gap:12px;justify-content:space-between;
}
.media-bar .mb-title{font-size:15px;font-weight:600;color:var(--text)}
.media-bar .mb-meta{font-family:var(--mono);font-size:12px;color:var(--accent);letter-spacing:.08em}
.media-status{
  position:absolute;top:16px;left:16px;z-index:2;
  display:inline-flex;align-items:center;gap:6px;font-size:12px;color:var(--text);
  background:rgba(5,8,15,.62);border:1px solid var(--line-strong);border-radius:var(--r-btn);
  padding:6px 12px;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
}
.media-status i{width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 8px var(--accent)}

/* ---------- steps ---------- */
.steps-section{padding:20px 0 88px}
.steps-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.step-card{
  position:relative;background:var(--glass);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:28px 26px;overflow:hidden;
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  transition:transform var(--tr),box-shadow var(--tr),border-color var(--tr);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.05);
}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(45,226,230,.32)}
.step-num{
  font-family:var(--mono);font-size:34px;font-weight:700;color:rgba(45,226,230,.34);
  letter-spacing:.04em;line-height:1;margin-bottom:16px;display:block;
}
.step-card h3{font-size:18px;margin-bottom:10px;font-weight:600}
.step-card p{font-size:14px;line-height:1.8;color:var(--text-2);margin:0}
.step-line{
  position:absolute;top:0;left:0;height:2px;width:48px;
  background:linear-gradient(90deg,var(--primary),transparent);
}

/* ---------- support main ---------- */
.support-section{padding:0 0 96px}
.support-grid{display:grid;grid-template-columns:minmax(0,1fr) 400px;gap:48px;align-items:start}
.panel-title{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:24px}
.panel-title h2{font-size:26px}
.panel-title span{font-size:13px;color:var(--text-3)}

.faq-item{
  position:relative;background:var(--glass);border:1px solid var(--line);
  border-radius:var(--r-sm);margin-bottom:12px;overflow:hidden;
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  transition:border-color var(--tr),box-shadow var(--tr);
}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--primary);
  transform:scaleY(0);transform-origin:top;transition:transform var(--tr);
  box-shadow:0 0 14px rgba(45,226,230,.6);
}
.faq-item.open{border-color:rgba(45,226,230,.34);box-shadow:0 10px 30px rgba(0,0,0,.3)}
.faq-item.open::before{transform:scaleY(1)}
.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;cursor:pointer;line-height:1.6;
}
.faq-q:hover{color:#fff}
.faq-icon{
  flex:0 0 auto;width:22px;height:22px;border-radius:50%;
  border:1px solid rgba(160,200,230,.3);display:inline-flex;align-items:center;justify-content:center;
  color:var(--text-3);font-size:11px;transition:all var(--tr);
}
.faq-item.open .faq-icon{transform:rotate(180deg);border-color:rgba(45,226,230,.6);color:var(--primary)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 300ms ease}
.faq-item.open .faq-a{max-height:420px}
.faq-a-inner{padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--text-2)}
.faq-a-inner strong{color:var(--primary);font-weight:600}

/* ---------- form ---------- */
.form-card{
  position:sticky;top:96px;background:var(--glass);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:28px 26px;
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.06);
}
.form-card h2{font-size:22px;margin-bottom:8px}
.form-card .form-note{font-size:13px;color:var(--text-3);margin-bottom:22px;line-height:1.7}
.field{margin-bottom:16px}
.field label{display:block;font-size:14px;color:var(--text-2);margin-bottom:7px;font-weight:500}
.field label .req{color:var(--danger);margin-left:2px}
.field input[type="text"],
.field input[type="tel"],
.field select,
.field textarea{
  width:100%;padding:12px 14px;font-size:14px;font-family:inherit;color:var(--text);
  background:rgba(5,8,15,.65);border:1px solid var(--line-strong);border-radius:12px;
  transition:border-color var(--tr),box-shadow var(--tr),background var(--tr);
  appearance:none;
}
.field textarea{min-height:110px;resize:vertical;line-height:1.7}
.field select{
  background-image:linear-gradient(45deg,transparent 50%,var(--text-3) 50%),linear-gradient(135deg,var(--text-3) 50%,transparent 50%);
  background-position:calc(100% - 18px) 20px,calc(100% - 13px) 20px;
  background-size:5px 5px,5px 5px;background-repeat:no-repeat;
}
.field input::placeholder,.field textarea::placeholder{color:rgba(124,140,163,.7)}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:rgba(45,226,230,.7);
  box-shadow:0 0 0 3px rgba(45,226,230,.16);background:rgba(5,8,15,.85);
}
.field.invalid input,.field.invalid select,.field.invalid textarea{border-color:rgba(255,92,122,.75);box-shadow:0 0 0 3px rgba(255,92,122,.12)}
.err-msg{display:none;font-size:12px;color:var(--danger);margin-top:6px}
.field.invalid .err-msg{display:block}
.check-row{display:flex;align-items:flex-start;gap:10px;margin:18px 0 20px}
.check-row input[type="checkbox"]{
  width:17px;height:17px;margin-top:3px;accent-color:#2DE2E6;flex:0 0 auto;cursor:pointer;
}
.check-row label{font-size:13px;color:var(--text-3);line-height:1.7;cursor:pointer}
.check-row.invalid label{color:var(--danger)}
.form-feedback{
  display:none;margin-top:16px;padding:12px 14px;border-radius:12px;font-size:13px;line-height:1.7;
  background:rgba(45,226,230,.10);border:1px solid rgba(45,226,230,.3);color:var(--primary);
}
.form-feedback.show{display:block}
.form-feedback.fail{background:rgba(255,92,122,.10);border-color:rgba(255,92,122,.35);color:var(--danger)}

/* ---------- cta band ---------- */
.cta-section{padding:0 0 96px}
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  border:1px solid var(--line);background:var(--glass);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  padding:40px 44px;display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:var(--shadow);
}
.cta-band::before{
  content:"";position:absolute;left:-80px;top:-120px;width:420px;height:420px;
  background:radial-gradient(circle,rgba(45,226,230,.16),transparent 66%);pointer-events:none;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;bottom:-160px;width:380px;height:380px;
  background:radial-gradient(circle,rgba(255,181,71,.11),transparent 68%);pointer-events:none;
}
.cta-band .cta-copy{position:relative;z-index:1}
.cta-band h2{font-size:clamp(1.35rem,2.2vw,1.75rem);margin-bottom:10px}
.cta-band p{color:var(--text-2);font-size:15px;margin:0;max-width:560px}
.cta-band .cta-btn{position:relative;z-index:1;flex:0 0 auto}

/* ---------- footer ---------- */
.site-footer{
  position:relative;z-index:1;background:#03060C;border-top:1px solid var(--line);
  padding:72px 0 28px;margin-top:0;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.15fr;gap:40px}
.footer-brand .logo{font-size:20px;margin-bottom:14px;display:inline-flex}
.footer-brand p{font-size:14px;line-height:1.85;color:var(--text-3);max-width:330px;margin:0 0 18px}
.footer-badges{display:flex;flex-wrap:wrap;gap:8px}
.footer-badges span{
  font-size:12px;color:var(--text-3);border:1px solid var(--line);
  padding:5px 11px;border-radius:var(--r-tag);background:rgba(15,26,43,.55);
}
.footer-col h4{font-size:14px;color:var(--text);margin-bottom:16px;font-weight:600}
.footer-col ul li{margin-bottom:11px;font-size:14px;color:var(--text-3);line-height:1.7}
.footer-col ul li a{color:var(--text-2)}
.footer-col ul li a:hover{color:var(--primary)}
.footer-contact li strong{color:var(--text-3);font-weight:600;margin-right:8px}
.footer-bottom{
  margin-top:52px;padding-top:24px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap;
}
.footer-bottom .legal{font-size:12.5px;color:var(--text-3);margin:0;line-height:1.8;max-width:840px}
.footer-bottom .tech{font-family:var(--mono);font-size:12px;color:rgba(124,140,163,.6);margin:0;letter-spacing:.06em}

/* ---------- back to top ---------- */
.to-top{
  position:fixed;right:22px;bottom:24px;z-index:150;width:44px;height:44px;border-radius:50%;
  display:none;align-items:center;justify-content:center;cursor:pointer;
  border:1px solid rgba(45,226,230,.4);background:rgba(10,17,29,.9);color:var(--primary);
  box-shadow:0 8px 24px rgba(0,0,0,.4);transition:all var(--tr);font-size:14px;
}
.to-top.show{display:flex}
.to-top:hover{background:rgba(45,226,230,.16);transform:translateY(-2px)}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .nav-main{gap:20px}
  .countdown{display:none}
  .support-grid{grid-template-columns:minmax(0,1fr) 350px;gap:36px}
}
@media (max-width:991px){
  :root{--header-h:64px}
  body{font-size:16px}
  .nav-main,.header-side .live-badge,.header-side .btn-sm{display:none}
  .menu-toggle{display:flex}
  .header-inner{gap:16px;padding:0 18px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-media img{aspect-ratio:16/10}
  .steps-grid{grid-template-columns:1fr;gap:16px}
  .step-card{padding:22px 20px}
  .support-grid{grid-template-columns:1fr;gap:40px}
  .form-card{position:static}
  .section{padding:64px 0}
  .help-hero{padding:44px 0 56px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px 28px;gap:22px}
  .cta-band .cta-btn{width:100%}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .wrap{padding:0 16px}
  .section{padding:48px 0}
  .help-hero h1{font-size:clamp(1.8rem,7vw,2.4rem)}
  .hero-sub{font-size:16px}
  .hero-actions .btn{width:100%}
  .support-section,.cta-section{padding-bottom:56px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .faq-q{font-size:15px;padding:16px 18px}
  .faq-a-inner{padding:0 18px 18px;font-size:14.5px}
}
@media (max-width:479px){
  .logo{font-size:17px}
  .panel-title h2{font-size:21px}
  .form-card{padding:22px 18px}
  .cta-band{padding:26px 20px}
  .hero-tags span{font-size:11px}
}