/* roulang page: index */
:root{
  --bg-0:#080A18;
  --bg-1:#0E1230;
  --bg-2:#151A3D;
  --primary:#5A4BFF;
  --primary-2:#8A6BFF;
  --accent:#FFC46B;
  --accent-2:#35E0C8;
  --text-1:#F2F4FF;
  --text-2:#B7BEE0;
  --text-3:#7C85AE;
  --line:rgba(255,255,255,.12);
  --glass:rgba(255,255,255,.06);
  --danger:#FF6B81;
  --radius-card:18px;
  --radius-img:16px;
  --radius-input:12px;
  --shadow-card:0 24px 60px -32px rgba(6,8,25,.9);
  --ease:cubic-bezier(.22,.61,.36,1);
  --container:1200px;
}
*{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  font-family:"HarmonyOS Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  background:var(--bg-0);
  color:var(--text-1);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-radius:var(--radius-img);}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease);}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
ul,ol{list-style:none;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px;}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:96px 0;position:relative;}
.section--tight{padding:72px 0;}
.section-head{margin-bottom:48px;max-width:720px;}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.16em;color:var(--accent);
  text-transform:uppercase;margin-bottom:14px;font-weight:600;
}
.section-head .eyebrow::before{content:"";width:22px;height:1px;background:linear-gradient(90deg,var(--accent),transparent);}
h1,h2,h3,h4{line-height:1.25;font-weight:700;letter-spacing:-.01em;}
h2.section-title{font-size:36px;font-weight:700;margin-bottom:16px;}
h3{font-size:24px;font-weight:600;line-height:1.35;}
h4{font-size:18px;font-weight:600;line-height:1.4;}
p.lead{color:var(--text-2);font-size:16px;line-height:1.8;max-width:720px;}

/* 星点背景 */
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background-image:
    radial-gradient(circle at 12% 18%, rgba(255,255,255,.10) 0 1px, transparent 1px),
    radial-gradient(circle at 78% 32%, rgba(255,255,255,.09) 0 1px, transparent 1px),
    radial-gradient(circle at 34% 72%, rgba(255,196,107,.10) 0 1px, transparent 1px),
    radial-gradient(circle at 62% 86%, rgba(255,255,255,.08) 0 1px, transparent 1px),
    radial-gradient(circle at 90% 64%, rgba(53,224,200,.08) 0 1px, transparent 1px);
  background-size:340px 340px,420px 420px,520px 520px,300px 300px,640px 640px;
  opacity:.85;
}
.page{position:relative;z-index:1;}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:none;cursor:pointer;border-radius:999px;
  font-weight:600;font-size:15px;line-height:1;
  padding:0 26px;height:44px;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease),opacity .18s var(--ease);
  white-space:nowrap;
}
.btn:hover{transform:translateY(-2px);}
.btn:active{transform:translateY(1px);}
.btn-primary{
  background:linear-gradient(120deg,var(--accent) 0%,#FFD79A 34%,var(--primary-2) 100%);
  color:#160F2E;
  box-shadow:0 0 0 1px rgba(255,255,255,.08),0 12px 32px -12px rgba(90,75,255,.7),0 0 24px rgba(255,196,107,.22);
}
.btn-primary:hover{filter:brightness(1.08);}
.btn-secondary{
  background:var(--glass);
  border:1px solid rgba(255,255,255,.16);
  color:var(--text-1);
  backdrop-filter:blur(14px);
}
.btn-secondary:hover{border-color:rgba(255,196,107,.5);color:var(--accent);}
.btn-ghost{background:transparent;border:1px solid var(--line);color:var(--text-2);}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent);}
.btn-lg{height:52px;padding:0 34px;font-size:16px;}
.btn-sm{height:32px;padding:0 16px;font-size:13px;}
.btn-block{width:100%;}
.btn[disabled]{opacity:.4;pointer-events:none;}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--accent);font-size:14px;font-weight:600;position:relative;
}
.text-link::after{
  content:"";position:absolute;left:0;bottom:-4px;height:1px;width:100%;
  background:var(--accent);transform:scaleX(0);transform-origin:left;
  transition:transform .22s var(--ease);
}
.text-link:hover::after{transform:scaleX(1);}

/* 徽章 */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 12px;border-radius:999px;
  font-size:12px;font-weight:600;line-height:1;white-space:nowrap;
  border:1px solid var(--line);color:var(--text-2);background:rgba(255,255,255,.04);
}
.badge--accent{border-color:rgba(255,196,107,.45);color:var(--accent);background:rgba(255,196,107,.08);}
.badge--cyan{border-color:rgba(53,224,200,.42);color:var(--accent-2);background:rgba(53,224,200,.08);}
.badge--purple{border-color:rgba(138,107,255,.45);color:#C3B4FF;background:rgba(138,107,255,.1);}

/* 导航 */
.site-header{
  position:sticky;top:0;z-index:60;
  height:72px;display:flex;align-items:center;
  background:rgba(8,10,24,.72);
  backdrop-filter:blur(18px) saturate(140%);
  border-bottom:1px solid transparent;
  transition:height .22s var(--ease),background .22s var(--ease),border-color .22s var(--ease);
}
.site-header.is-scrolled{
  height:64px;background:rgba(8,10,24,.92);
  border-bottom-color:var(--line);
}
.nav-inner{display:flex;align-items:center;gap:24px;width:100%;}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{
  width:34px;height:34px;border-radius:11px;
  background:linear-gradient(140deg,var(--primary) 0%,var(--primary-2) 52%,var(--accent) 100%);
  display:grid;place-items:center;position:relative;
  box-shadow:0 0 20px rgba(90,75,255,.5);
}
.logo-mark::after{
  content:"";width:12px;height:12px;border-radius:50%;
  background:radial-gradient(circle,#FFF8E8 0 34%,rgba(255,255,255,.15) 36%,transparent 70%);
}
.logo-text{display:flex;flex-direction:column;line-height:1.1;}
.logo-text b{font-size:16px;font-weight:700;letter-spacing:.01em;}
.logo-text span{font-size:11px;color:var(--text-3);letter-spacing:.14em;}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:12px;}
.nav-links a{
  font-size:15px;color:var(--text-2);padding:6px 0;position:relative;font-weight:500;
}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:0;width:100%;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--accent),var(--primary-2));
  transform:scaleX(0);transform-origin:left;transition:transform .22s var(--ease);
}
.nav-links a:hover{color:var(--text-1);}
.nav-links a:hover::after,.nav-links a.is-active::after{transform:scaleX(1);}
.nav-links a.is-active{color:var(--accent);}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);background:rgba(255,255,255,.05);
  cursor:pointer;position:relative;
}
.nav-toggle span{
  position:absolute;left:11px;width:20px;height:2px;border-radius:2px;background:var(--text-1);
  transition:transform .22s var(--ease),opacity .22s var(--ease);
}
.nav-toggle span:nth-child(1){top:14px;}
.nav-toggle span:nth-child(2){top:20px;}
.nav-toggle span:nth-child(3){top:26px;}
.nav-toggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}
.nav-mobile{
  display:none;position:fixed;left:0;right:0;top:72px;z-index:55;
  background:rgba(10,12,28,.98);backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
  padding:20px 24px 28px;
}
.nav-mobile.is-open{display:block;}
.nav-mobile a.nav-mobile-link{
  display:block;padding:14px 4px;font-size:16px;color:var(--text-2);
  border-bottom:1px solid rgba(255,255,255,.06);
}
.nav-mobile a.nav-mobile-link.is-active{color:var(--accent);}
.nav-mobile .nav-mobile-actions{display:grid;gap:12px;margin-top:20px;}

/* Hero */
.hero{
  position:relative;overflow:hidden;
  padding:88px 0 96px;
  background:
    linear-gradient(180deg,rgba(8,10,24,.82) 0%,rgba(8,10,24,.94) 62%,var(--bg-0) 100%),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat;
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(circle at 82% 22%,rgba(90,75,255,.28),transparent 46%),
             radial-gradient(circle at 12% 82%,rgba(255,196,107,.12),transparent 42%);
}
.hero-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;
}
.hero-copy .hero-eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  padding:7px 16px;border-radius:999px;
  background:rgba(255,255,255,.05);border:1px solid var(--line);
  font-size:13px;color:var(--text-2);margin-bottom:24px;
}
.hero-copy h1{
  font-size:52px;font-weight:800;line-height:1.12;letter-spacing:-.02em;
  margin-bottom:20px;
}
.hero-copy h1 em{
  font-style:normal;
  background:linear-gradient(100deg,var(--accent) 0%,#FFE3B4 40%,var(--primary-2) 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-copy .hero-sub{
  font-size:17px;color:var(--text-2);max-width:560px;margin-bottom:32px;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:28px;}
.hero-points{display:flex;flex-wrap:wrap;gap:18px 28px;}
.hero-points li{
  font-size:14px;color:var(--text-2);display:flex;align-items:center;gap:8px;
}
.hero-points li::before{
  content:"";width:7px;height:7px;border-radius:50%;
  background:var(--accent-2);box-shadow:0 0 10px rgba(53,224,200,.7);flex-shrink:0;
}

/* 登录卡 */
.login-card{
  background:rgba(255,255,255,.06);
  backdrop-filter:blur(18px) saturate(140%);
  border:1px solid rgba(255,255,255,.14);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.18),var(--shadow-card);
  border-radius:22px;padding:32px;
}
.login-card h2{font-size:21px;font-weight:700;margin-bottom:6px;}
.login-card .login-desc{font-size:13px;color:var(--text-3);margin-bottom:24px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:14px;color:var(--text-2);margin-bottom:8px;}
.field input,.field select,.field textarea{
  width:100%;height:48px;padding:0 16px;
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);border-radius:var(--radius-input);
  color:var(--text-1);outline:none;
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.field textarea{height:auto;min-height:112px;padding:12px 16px;line-height:1.7;resize:vertical;}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3);}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--accent);
  box-shadow:0 0 0 3px rgba(255,196,107,.14);
}
.field select{
  appearance:none;cursor:pointer;
  background-image:linear-gradient(45deg,transparent 50%,var(--text-2) 50%),linear-gradient(135deg,var(--text-2) 50%,transparent 50%);
  background-position:calc(100% - 20px) 21px,calc(100% - 14px) 21px;
  background-size:6px 6px,6px 6px;background-repeat:no-repeat;
}
.field.has-error input,.field.has-error select,.field.has-error textarea{
  border-color:var(--danger);box-shadow:0 0 0 3px rgba(255,107,129,.12);
}
.field-error{display:none;font-size:13px;color:var(--danger);margin-top:6px;}
.field.has-error .field-error{display:block;}
.login-row{display:flex;align-items:center;justify-content:space-between;margin:6px 0 20px;font-size:13px;color:var(--text-3);}
.login-row label{display:flex;align-items:center;gap:8px;cursor:pointer;}
.checkbox{
  width:18px;height:18px;border-radius:4px;border:1px solid var(--line);
  background:rgba(255,255,255,.05);appearance:none;cursor:pointer;position:relative;flex-shrink:0;
}
.checkbox:checked{background:linear-gradient(120deg,var(--accent),var(--primary-2));border-color:transparent;}
.checkbox:checked::after{
  content:"";position:absolute;left:6px;top:2px;width:5px;height:9px;
  border-right:2px solid #171131;border-bottom:2px solid #171131;transform:rotate(42deg);
}
.form-note{font-size:12px;color:var(--text-3);margin-top:14px;line-height:1.6;}
.form-alert{
  display:none;margin-top:16px;padding:12px 16px;border-radius:12px;
  font-size:14px;border:1px solid rgba(53,224,200,.42);
  background:rgba(53,224,200,.1);color:var(--accent-2);
}
.form-alert.is-visible{display:block;}

/* 信任数据条 */
.stats{border-top:1px solid transparent;border-bottom:1px solid transparent;}
.stats-wrap{
  display:grid;grid-template-columns:repeat(4,1fr);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  position:relative;
}
.stats-wrap::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,196,107,.7),rgba(90,75,255,.5),transparent);
}
.stats-wrap::after{
  content:"";position:absolute;bottom:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(53,224,200,.5),rgba(90,75,255,.4),transparent);
}
.stat-item{padding:36px 28px;border-right:1px solid var(--line);}
.stat-item:last-child{border-right:none;}
.stat-num{font-size:40px;font-weight:700;letter-spacing:-.02em;font-variant-numeric:tabular-nums;color:var(--text-1);}
.stat-num i{font-style:normal;font-size:18px;color:var(--accent);margin-left:4px;font-weight:600;}
.stat-item p{font-size:13px;color:var(--text-3);margin-top:6px;}

/* 优惠阶梯 */
.ladder{position:relative;padding-left:26px;}
.ladder::before{
  content:"";position:absolute;left:19px;top:14px;bottom:14px;width:2px;
  background:linear-gradient(180deg,var(--accent),var(--primary) 55%,transparent);
}
.ladder-item{
  position:relative;display:grid;grid-template-columns:56px 1fr auto;gap:24px;align-items:center;
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px 28px;margin-bottom:16px;
  transition:transform .2s var(--ease),border-color .2s var(--ease);
}
.ladder-item:hover{transform:translateX(4px);border-color:rgba(255,196,107,.34);}
.ladder-index{
  width:44px;height:44px;border-radius:50%;
  display:grid;place-items:center;
  border:1px solid rgba(255,196,107,.55);
  color:var(--accent);font-weight:700;font-size:16px;
  box-shadow:0 0 18px rgba(255,196,107,.22);
  background:rgba(255,196,107,.06);
}
.ladder-body h3{font-size:20px;margin-bottom:8px;}
.ladder-body ul{display:grid;gap:4px;}
.ladder-body li{font-size:14px;color:var(--text-2);position:relative;padding-left:14px;}
.ladder-body li::before{
  content:"";position:absolute;left:0;top:12px;width:5px;height:5px;border-radius:50%;background:var(--accent-2);
}
.ladder-right{display:flex;flex-direction:column;align-items:flex-end;gap:10px;}

/* 套餐 */
.plans{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;align-items:start;}
.plan{
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:28px 24px;display:flex;flex-direction:column;
  transition:transform .2s var(--ease),border-color .2s var(--ease);
}
.plan:hover{transform:translateY(-4px);border-color:rgba(138,107,255,.45);}
.plan--featured{
  grid-row:1;
  background:rgba(255,255,255,.06);
  backdrop-filter:blur(18px) saturate(140%);
  border:1px solid rgba(255,196,107,.5);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.18),0 28px 60px -30px rgba(90,75,255,.75);
  transform:translateY(-12px);
  position:relative;
  z-index:3;
}
.plan--featured:hover{transform:translateY(-16px);}
.plan-flag{
  position:absolute;top:-13px;left:50%;transform:translateX(-50%);
  padding:5px 16px;border-radius:999px;font-size:12px;font-weight:700;
  background:linear-gradient(120deg,var(--accent),var(--primary-2));color:#181031;
}
.plan-name{font-size:17px;font-weight:600;margin-bottom:6px;}
.plan-tag{font-size:12px;color:var(--text-3);margin-bottom:18px;}
.plan-price{display:flex;align-items:baseline;gap:6px;margin-bottom:4px;}
.plan-price b{font-size:32px;font-weight:800;letter-spacing:-.02em;color:var(--accent);font-variant-numeric:tabular-nums;}
.plan-price span{font-size:13px;color:var(--text-3);}
.plan-cycle{font-size:12px;color:var(--text-3);margin-bottom:20px;}
.plan-features{display:grid;gap:10px;margin-bottom:24px;}
.plan-features li{
  font-size:14px;color:var(--text-2);display:flex;gap:10px;align-items:flex-start;line-height:1.6;
}
.plan-features li::before{
  content:"";flex-shrink:0;width:15px;height:15px;margin-top:4px;border-radius:50%;
  background:rgba(53,224,200,.14);
  box-shadow:inset 0 0 0 1px rgba(53,224,200,.5);
  background-image:linear-gradient(140deg,transparent 44%,var(--accent-2) 44% 56%,transparent 56%);
}
.plan-features li.hl{color:var(--accent-2);}
.plan-foot{margin-top:auto;}
.plan-compliance{font-size:12px;color:var(--text-3);margin-top:12px;line-height:1.5;}

/* 资讯列表 */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.news-card:hover{transform:translateY(-2px);border-color:rgba(255,196,107,.3);box-shadow:var(--shadow-card);}
.news-cover{
  aspect-ratio:16/9;background:var(--bg-1) center/cover no-repeat;
  position:relative;overflow:hidden;border-radius:0;
}
.news-cover::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 40%,rgba(8,10,24,.65));
}
.news-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:12px;flex:1;}
.news-title{
  font-size:17px;font-weight:600;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-summary{
  font-size:14px;color:var(--text-2);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:12px;color:var(--text-3);margin-top:auto;
}
.empty-state{
  grid-column:1/-1;text-align:center;padding:64px 24px;
  background:var(--bg-2);border:1px dashed var(--line);border-radius:var(--radius-card);
}
.empty-icon{
  width:60px;height:60px;margin:0 auto 18px;border-radius:50%;
  display:grid;place-items:center;
  background:radial-gradient(circle,rgba(255,196,107,.22),transparent 70%);
  box-shadow:inset 0 0 0 1px var(--line);
}
.empty-icon::before{content:"";width:14px;height:14px;border-radius:50%;background:radial-gradient(circle,#FFF6E2 0 30%,rgba(255,196,107,.4) 32%,transparent 72%);}
.empty-state p{color:var(--text-2);font-size:15px;margin-bottom:20px;}

/* 能力矩阵 */
.matrix{display:grid;grid-template-columns:8fr 4fr;gap:24px;}
.matrix-col{display:grid;gap:24px;}
.matrix-card{
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:28px;position:relative;overflow:hidden;
  transition:transform .2s var(--ease),border-color .2s var(--ease);
}
.matrix-card:hover{transform:translateY(-2px);border-color:rgba(138,107,255,.42);}
.matrix-card .num{
  font-size:13px;font-weight:700;color:var(--accent);letter-spacing:.14em;margin-bottom:14px;display:block;
}
.matrix-icon{
  width:44px;height:44px;border-radius:14px;margin-bottom:16px;
  background:linear-gradient(140deg,rgba(90,75,255,.45),rgba(53,224,200,.22));
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.14);
}
.matrix-card h3{font-size:19px;margin-bottom:10px;}
.matrix-card p{font-size:14px;color:var(--text-2);line-height:1.75;}
.matrix-col--offset{padding-top:24px;}

/* 限时入口 */
.promo-bar{
  background:rgba(255,255,255,.06);
  backdrop-filter:blur(18px) saturate(140%);
  border:1px solid rgba(255,255,255,.14);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.18);
  border-radius:22px;padding:28px 32px;
  display:grid;grid-template-columns:auto 1fr auto;gap:32px;align-items:center;
}
.countdown{display:flex;align-items:center;gap:12px;}
.countdown-label{font-size:13px;color:var(--text-3);}
.countdown-nums{
  display:flex;align-items:center;gap:6px;
  font-variant-numeric:tabular-nums;font-weight:700;
}
.countdown-nums b{
  font-size:28px;color:var(--accent);
  text-shadow:0 0 18px rgba(255,196,107,.4);
  min-width:44px;text-align:center;
}
.countdown-nums i{font-style:normal;color:var(--text-3);font-size:20px;}
.progress-block{min-width:0;}
.progress-head{display:flex;justify-content:space-between;font-size:13px;color:var(--text-2);margin-bottom:8px;}
.progress-track{height:8px;border-radius:999px;background:rgba(255,255,255,.08);overflow:hidden;}
.progress-fill{
  height:100%;width:0;border-radius:999px;
  background:linear-gradient(90deg,var(--accent-2),var(--primary-2));
  transition:width 1s var(--ease);
}

/* 咨询表单 */
.consult{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:start;}
.consult-info h2{font-size:32px;margin-bottom:16px;}
.consult-info > p{color:var(--text-2);font-size:15px;margin-bottom:28px;}
.consult-list{display:grid;gap:18px;}
.consult-list li{
  display:grid;grid-template-columns:36px 1fr;gap:14px;align-items:start;
}
.consult-list .dot{
  width:36px;height:36px;border-radius:12px;display:grid;place-items:center;
  background:rgba(53,224,200,.1);border:1px solid rgba(53,224,200,.32);
  color:var(--accent-2);font-size:13px;font-weight:700;
}
.consult-list b{display:block;font-size:15px;font-weight:600;margin-bottom:4px;}
.consult-list p{font-size:14px;color:var(--text-2);line-height:1.7;}
.form-card{
  background:rgba(255,255,255,.06);
  backdrop-filter:blur(18px) saturate(140%);
  border:1px solid rgba(255,255,255,.14);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.18),var(--shadow-card);
  border-radius:22px;padding:32px;
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 20px;}
.form-grid .field--full{grid-column:1/-1;}
.consent{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--text-3);margin:8px 0 20px;line-height:1.6;}
.consent a{color:var(--accent);}

/* FAQ */
.faq-list{display:grid;gap:12px;max-width:920px;}
.faq-item{
  background:var(--bg-2);border:1px solid var(--line);border-radius:14px;overflow:hidden;
  transition:border-color .2s var(--ease);
}
.faq-item.is-open{border-color:rgba(255,196,107,.36);}
.faq-q{
  width:100%;min-height:64px;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:18px 24px;text-align:left;background:none;border:none;cursor:pointer;
  font-size:16px;font-weight:600;color:var(--text-1);line-height:1.5;
}
.faq-q .arrow{
  flex-shrink:0;width:22px;height:22px;position:relative;
  transition:transform .22s var(--ease);
}
.faq-q .arrow::before,.faq-q .arrow::after{
  content:"";position:absolute;top:10px;width:11px;height:2px;border-radius:2px;background:var(--accent);
}
.faq-q .arrow::before{left:1px;transform:rotate(45deg);}
.faq-q .arrow::after{right:1px;transform:rotate(-45deg);}
.faq-item.is-open .arrow{transform:rotate(180deg);}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height .3s var(--ease),opacity .2s var(--ease);
  opacity:0;
}
.faq-item.is-open .faq-a{opacity:1;}
.faq-a p{padding:0 24px 22px;font-size:14px;color:var(--text-2);line-height:1.8;max-width:720px;}

/* CTA 通栏 */
.cta-band{
  background:linear-gradient(120deg,rgba(90,75,255,.28),rgba(53,224,200,.14));
  border:1px solid var(--line);border-radius:22px;
  padding:44px 48px;display:flex;align-items:center;justify-content:space-between;gap:32px;
  flex-wrap:wrap;
}
.cta-band h2{font-size:28px;margin-bottom:8px;}
.cta-band p{font-size:14px;color:var(--text-2);}

/* 页脚 */
.site-footer{
  background:#060810;border-top:1px solid var(--line);position:relative;
  padding:72px 0 0;margin-top:96px;
}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,196,107,.6),rgba(90,75,255,.5),transparent);
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px;padding-bottom:48px;}
.footer-brand .logo{margin-bottom:16px;}
.footer-brand p{font-size:14px;color:var(--text-3);line-height:1.8;max-width:320px;}
.footer-col h4{font-size:15px;font-weight:600;margin-bottom:18px;color:var(--text-1);}
.footer-col ul{display:grid;gap:12px;}
.footer-col a{font-size:14px;color:var(--text-3);}
.footer-col a:hover{color:var(--accent);}
.footer-col li span{font-size:14px;color:var(--text-3);}
.footer-bottom{
  border-top:1px solid var(--line);padding:22px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}
.footer-bottom nav{display:flex;gap:20px;flex-wrap:wrap;}

/* 响应式 */
@media (max-width:1200px){
  .plans{grid-template-columns:repeat(2,1fr);gap:20px;}
  .plan--featured{transform:none;}
  .plan--featured:hover{transform:translateY(-4px);}
}
@media (max-width:1024px){
  .hero-inner{grid-template-columns:1fr;gap:40px;}
  .hero-copy h1{font-size:42px;}
  .matrix{grid-template-columns:1fr;gap:24px;}
  .matrix-col--offset{padding-top:0;}
  .consult{grid-template-columns:1fr;gap:32px;}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .stats-wrap{grid-template-columns:repeat(2,1fr);}
  .stat-item:nth-child(2){border-right:none;}
  .stat-item:nth-child(1),.stat-item:nth-child(2){border-bottom:1px solid var(--line);}
}
@media (max-width:768px){
  .section{padding:64px 0;}
  h2.section-title{font-size:26px;}
  .container{padding:0 20px;}
  .nav-links{display:none;}
  .nav-actions .btn-secondary{display:none;}
  .nav-toggle{display:block;}
  .nav-actions{gap:10px;}
  .hero{padding:56px 0 64px;}
  .hero-copy h1{font-size:32px;}
  .hero-copy .hero-sub{font-size:15px;}
  .hero-cta{gap:12px;}
  .hero-cta .btn{flex:1 1 auto;}
  .login-card,.form-card{padding:24px;}
  .ladder{padding-left:0;}
  .ladder::before{display:none;}
  .ladder-item{grid-template-columns:1fr;gap:16px;}
  .ladder-right{align-items:flex-start;flex-direction:row;gap:10px;}
  .plans{
    display:grid;grid-auto-flow:column;grid-auto-columns:82%;
    overflow-x:auto;scroll-snap-type:x mandatory;
    gap:16px;padding-bottom:16px;
    grid-template-columns:none;
  }
  .plan{scroll-snap-align:start;}
  .plan--featured{transform:none;grid-row:auto;}
  .news-grid{grid-template-columns:1fr;}
  .form-grid{grid-template-columns:1fr;}
  .promo-bar{grid-template-columns:1fr;gap:22px;padding:24px;}
  .countdown-nums b{font-size:24px;min-width:38px;}
  .cta-band{padding:28px 24px;flex-direction:column;align-items:flex-start;}
  .footer-grid{grid-template-columns:1fr;}
  .stats-wrap{grid-template-columns:1fr;}
  .stat-item{border-right:none;border-bottom:1px solid var(--line);}
  .stat-item:last-child{border-bottom:none;}
  .stat-item{padding:24px 20px;}
  .site-footer{margin-top:64px;padding-top:56px;}
}
@media (max-width:520px){
  .hero-copy h1{font-size:28px;}
  .hero-copy .hero-eyebrow{font-size:12px;padding:6px 12px;}
  .countdown{flex-direction:column;align-items:flex-start;gap:6px;}
  .login-card h2{font-size:19px;}
  .faq-q{font-size:15px;padding:16px 18px;}
  .faq-a p{padding:0 18px 18px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;}
  html{scroll-behavior:auto;}
}

/* roulang page: article */
:root{
  --bg-0:#080A18;
  --bg-1:#0E1230;
  --bg-2:#151A3D;
  --primary:#5A4BFF;
  --primary-2:#8A6BFF;
  --accent:#FFC46B;
  --accent-2:#35E0C8;
  --text-1:#F2F4FF;
  --text-2:#B7BEE0;
  --text-3:#7C85AE;
  --line:rgba(255,255,255,.12);
  --glass:rgba(255,255,255,.06);
  --danger:#FF6B81;
  --r-card:18px;
  --r-pill:999px;
  --r-input:12px;
  --r-img:16px;
  --shadow-card:0 24px 60px -32px rgba(6,8,25,.9);
  --glow:0 0 0 1px rgba(255,255,255,.08),0 12px 32px -12px rgba(90,75,255,.7),0 0 24px rgba(255,196,107,.22);
  --ease:.22s cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"HarmonyOS Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text-1);
  background:var(--bg-0);
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background:
    radial-gradient(1.6px 1.6px at 10% 14%,rgba(255,255,255,.55),transparent 60%),
    radial-gradient(1.4px 1.4px at 28% 62%,rgba(255,255,255,.4),transparent 60%),
    radial-gradient(1.8px 1.8px at 72% 24%,rgba(255,255,255,.45),transparent 60%),
    radial-gradient(1.3px 1.3px at 88% 76%,rgba(255,255,255,.35),transparent 60%),
    radial-gradient(1.5px 1.5px at 54% 88%,rgba(255,255,255,.3),transparent 60%),
    radial-gradient(600px 420px at 84% -6%,rgba(90,75,255,.22),transparent 70%),
    radial-gradient(520px 380px at 6% 92%,rgba(255,196,107,.08),transparent 70%);
}
header,main,footer{position:relative;z-index:1}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* 阅读进度条 */
.progress-bar{
  position:fixed;top:0;left:0;height:3px;width:0;
  background:linear-gradient(90deg,var(--accent),var(--primary));
  z-index:200;transition:width .1s linear;
}

/* 导航 */
.site-header{
  position:sticky;top:0;z-index:190;
  height:72px;display:flex;align-items:center;
  background:rgba(8,10,24,.6);
  border-bottom:1px solid transparent;
  transition:height var(--ease),background var(--ease),border-color var(--ease);
}
.site-header.is-scrolled{
  height:64px;
  background:rgba(14,18,48,.82);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  border-bottom-color:var(--line);
}
.nav-inner{display:flex;align-items:center;gap:32px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
  width:36px;height:36px;border-radius:12px;flex-shrink:0;
  background:
    radial-gradient(circle at 30% 30%,rgba(255,196,107,.95),transparent 45%),
    linear-gradient(140deg,var(--primary),var(--primary-2));
  box-shadow:0 0 18px rgba(90,75,255,.55);
  position:relative;
}
.logo-mark::after{
  content:"";position:absolute;inset:0;margin:auto;width:8px;height:8px;
  border-radius:50%;background:#fff;box-shadow:0 0 12px rgba(255,255,255,.9);
}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-text b{font-size:17px;font-weight:800;letter-spacing:.01em}
.logo-text span{font-size:11px;color:var(--text-3);letter-spacing:.14em}
.nav-links{display:flex;align-items:center;gap:28px;margin-right:auto}
.nav-links a{
  position:relative;font-size:15px;color:var(--text-2);padding:6px 0;
  transition:color var(--ease);
}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--accent);border-radius:2px;transition:width var(--ease);
}
.nav-links a:hover{color:var(--text-1)}
.nav-links a:hover::after{width:100%}
.nav-links a.is-active{color:var(--text-1)}
.nav-links a.is-active::after{width:100%}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  background:var(--glass);border:1px solid var(--line);
  flex-direction:column;justify-content:center;align-items:center;gap:5px;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text-1);border-radius:2px;transition:var(--ease)}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),border-color var(--ease),filter var(--ease);
  white-space:nowrap;
}
.btn-sm{height:32px;padding:0 16px;font-size:13.5px}
.btn-lg{height:52px;padding:0 30px;font-size:16px}
.btn-block{width:100%}
.btn-primary{
  background:linear-gradient(120deg,var(--accent),var(--primary));
  color:#100A22;box-shadow:var(--glow);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px)}
.btn-primary:active{transform:translateY(1px)}
.btn-secondary{
  background:var(--glass);border-color:var(--line);color:var(--text-1);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.btn-secondary:hover{border-color:rgba(255,196,107,.5);transform:translateY(-2px)}
.btn-secondary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text-2)}
.btn-ghost:hover{color:var(--text-1);border-color:rgba(255,196,107,.45)}
.btn[disabled],.btn.is-disabled{opacity:.4;pointer-events:none}
.text-link{
  display:inline-flex;align-items:center;gap:6px;font-size:14.5px;
  color:var(--accent);border-bottom:1px solid transparent;transition:var(--ease);
}
.text-link:hover{border-bottom-color:var(--accent)}

/* 徽章 */
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:var(--r-pill);font-size:12.5px;font-weight:600;
  border:1px solid var(--line);color:var(--text-2);background:rgba(255,255,255,.04);
  white-space:nowrap;
}
.badge-accent{border-color:rgba(255,196,107,.45);color:var(--accent);background:rgba(255,196,107,.08)}
.badge-mint{border-color:rgba(53,224,200,.4);color:var(--accent-2);background:rgba(53,224,200,.08)}

/* 面包屑 */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13.5px;color:var(--text-3);margin-bottom:24px}
.breadcrumb li{display:flex;align-items:center;gap:10px}
.breadcrumb li+li::before{content:"/";color:var(--text-3);opacity:.6}
.breadcrumb a{color:var(--text-3);transition:color var(--ease)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb [aria-current]{color:var(--text-2)}

/* 文章头 */
.article-hero{
  padding:72px 0 48px;
  border-bottom:1px solid var(--line);
  background:linear-gradient(180deg,rgba(21,26,61,.6),rgba(8,10,24,0));
}
.article-hero .tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:20px}
.article-hero h1{
  font-size:44px;line-height:1.2;font-weight:800;letter-spacing:-.02em;
  max-width:900px;margin-bottom:22px;
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:24px;
  font-size:13.5px;color:var(--text-3);
}
.meta-row span{display:inline-flex;align-items:center;gap:8px}
.meta-row span::before{
  content:"";width:6px;height:6px;border-radius:50%;
  background:var(--accent-2);box-shadow:0 0 10px rgba(53,224,200,.8);
}

/* 正文布局 */
.article-section{padding:56px 0 88px}
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,760px) 260px;
  gap:64px;
  justify-content:center;
}
.article-body{min-width:0}
.article-content{color:var(--text-2);font-size:16.5px}
.article-content p{margin:0 0 1.2em;max-width:720px}
.article-content h2{
  position:relative;font-size:27px;color:var(--text-1);
  margin:48px 0 18px;padding-left:16px;
}
.article-content h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:4px;
  background:linear-gradient(180deg,var(--accent),var(--primary));
  box-shadow:0 0 16px rgba(255,196,107,.55);
}
.article-content h3{font-size:21px;color:var(--text-1);margin:34px 0 14px}
.article-content h4{font-size:18px;color:var(--text-1);margin:26px 0 12px}
.article-content a{color:var(--accent);border-bottom:1px solid rgba(255,196,107,.35)}
.article-content a:hover{border-bottom-color:var(--accent)}
.article-content strong{color:var(--text-1)}
.article-content ul,.article-content ol{margin:0 0 1.3em;padding-left:0}
.article-content ul li{position:relative;padding-left:22px;margin-bottom:8px}
.article-content ul li::before{
  content:"";position:absolute;left:2px;top:12px;width:7px;height:7px;border-radius:50%;
  background:var(--accent);box-shadow:0 0 10px rgba(255,196,107,.7);
}
.article-content ol{counter-reset:item}
.article-content ol li{position:relative;padding-left:30px;margin-bottom:8px;counter-increment:item}
.article-content ol li::before{
  content:counter(item);position:absolute;left:0;top:4px;width:20px;height:20px;
  border-radius:50%;border:1px solid rgba(255,196,107,.5);color:var(--accent);
  font-size:12px;line-height:18px;text-align:center;
}
.article-content blockquote{
  margin:24px 0;padding:18px 22px;border-left:3px solid var(--accent);
  border-radius:0 var(--r-img) var(--r-img) 0;
  background:var(--glass);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  border-top:1px solid var(--line);
  border-right:1px solid var(--line);
  border-bottom:1px solid var(--line);
  color:var(--text-1);
}
.article-content img{border-radius:var(--r-img);margin:24px auto}
.article-content figure{margin:24px 0}
.article-content figcaption{text-align:center;font-size:13px;color:var(--text-3);margin-top:10px}
.article-content table{
  width:100%;border-collapse:collapse;margin:24px 0;font-size:14.5px;
  display:block;overflow-x:auto;white-space:nowrap;
}
.article-content table th,.article-content table td{
  border:1px solid var(--line);padding:12px 16px;text-align:left;
}
.article-content table th{background:rgba(255,255,255,.05);color:var(--text-1)}
.article-content table tr:nth-child(even) td{background:rgba(255,255,255,.025)}
.article-content pre{
  background:#05060F;border:1px solid var(--line);border-radius:14px;
  padding:18px 20px;overflow-x:auto;font-size:13.5px;line-height:1.7;
  font-family:"JetBrains Mono",Consolas,Monaco,monospace;color:var(--text-2);
  margin:24px 0;
}
.article-content code{
  font-family:"JetBrains Mono",Consolas,Monaco,monospace;font-size:.92em;
  background:rgba(255,255,255,.07);padding:2px 7px;border-radius:6px;color:var(--accent-2);
}
.article-content pre code{background:none;padding:0;color:inherit}
.article-content hr{border:0;height:1px;background:linear-gradient(90deg,transparent,var(--line),transparent);margin:40px 0}

/* 侧栏目录 */
.article-aside{min-width:0}
.toc{
  position:sticky;top:96px;
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px 22px 18px;box-shadow:var(--shadow-card);
}
.toc h3{font-size:14px;color:var(--text-1);letter-spacing:.06em;margin-bottom:14px}
.toc ul{display:flex;flex-direction:column;gap:2px}
.toc a{
  display:block;position:relative;padding:7px 0 7px 14px;
  font-size:13.5px;color:var(--text-3);transition:color var(--ease);
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.toc a::before{
  content:"";position:absolute;left:0;top:9px;bottom:9px;width:2px;border-radius:2px;
  background:transparent;transition:background var(--ease);
}
.toc a:hover{color:var(--text-1)}
.toc a.is-current{color:var(--accent)}
.toc a.is-current::before{background:var(--accent);box-shadow:0 0 10px rgba(255,196,107,.8)}
.aside-card{
  margin-top:20px;padding:22px;border-radius:var(--r-card);
  background:var(--bg-2);border:1px solid var(--line);box-shadow:var(--shadow-card);
}
.aside-card h4{font-size:15px;margin-bottom:10px}
.aside-card p{font-size:13.5px;color:var(--text-3);line-height:1.7;margin-bottom:16px}

/* 空态 */
.empty-state{
  text-align:center;padding:64px 24px;border-radius:var(--r-card);
  background:var(--bg-2);border:1px solid var(--line);box-shadow:var(--shadow-card);
}
.empty-icon{
  width:60px;height:60px;margin:0 auto 20px;border-radius:20px;
  background:
    radial-gradient(circle at 50% 40%,rgba(255,196,107,.9),transparent 55%),
    linear-gradient(140deg,var(--primary),var(--primary-2));
  box-shadow:0 0 26px rgba(90,75,255,.6);
}
.empty-state h2{font-size:22px;margin-bottom:12px}
.empty-state p{color:var(--text-3);font-size:14.5px;max-width:520px;margin:0 auto 24px}

/* 文末标签 */
.tag-section{padding:0 0 56px}
.tag-line{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;
  padding-top:32px;border-top:1px solid var(--line);
}
.tag-line .label{font-size:13.5px;color:var(--text-3);margin-right:4px}

/* 上一篇/下一篇 */
.pn-section{padding:0 0 72px}
.pn-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.pn-card{
  display:block;padding:24px 26px;border-radius:var(--r-card);
  background:var(--bg-2);border:1px solid var(--line);box-shadow:var(--shadow-card);
  transition:transform var(--ease),border-color var(--ease);
}
.pn-card:hover{transform:translateY(-2px);border-color:rgba(255,196,107,.4)}
.pn-label{display:block;font-size:12.5px;color:var(--text-3);letter-spacing:.08em;margin-bottom:10px}
.pn-title{display:block;font-size:17px;font-weight:600;color:var(--text-1);line-height:1.5}
.pn-card:hover .pn-title{color:var(--accent)}

/* 相关推荐 */
.related-section{padding:0 0 88px}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;
}
.section-head h2{font-size:28px}
.section-head p{font-size:14px;color:var(--text-3);margin-top:8px}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-card);
  transition:transform var(--ease),border-color var(--ease);
}
.news-card:hover{transform:translateY(-2px);border-color:rgba(255,196,107,.35)}
.news-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--bg-2);position:relative}
.news-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0}
.news-thumb::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(8,10,24,0),rgba(8,10,24,.45));
}
.news-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:12px;flex:1}
.news-body .badge{align-self:flex-start}
.news-body h3{
  font-size:17px;line-height:1.5;font-weight:600;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-body p{
  font-size:14px;color:var(--text-3);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;
  font-size:12.5px;color:var(--text-3);
}

/* CTA 通栏 */
.cta-section{padding:0 0 96px}
.cta-band{
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  padding:36px 40px;border-radius:24px;
  background:var(--glass);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  border:1px solid rgba(255,255,255,.14);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.18),var(--shadow-card);
}
.cta-band h2{font-size:24px;margin-bottom:10px}
.cta-band p{font-size:14.5px;color:var(--text-3);max-width:560px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* 返回顶部 */
.back-top{
  position:fixed;right:24px;bottom:28px;z-index:180;
  width:46px;height:46px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--glass);border:1px solid var(--line);color:var(--text-1);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  cursor:pointer;opacity:0;visibility:hidden;transition:var(--ease);
}
.back-top.is-show{opacity:1;visibility:visible}
.back-top:hover{transform:translateY(-3px);border-color:rgba(255,196,107,.5)}
.back-top::after{
  content:"";width:0;height:0;border-left:6px solid transparent;border-right:6px solid transparent;
  border-bottom:8px solid currentColor;
}

/* 页脚 */
.site-footer{
  background:#06070F;border-top:1px solid var(--line);
  position:relative;padding:72px 0 28px;
}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,196,107,.7),rgba(90,75,255,.6),transparent);
}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1.2fr 1.2fr;gap:48px;padding-bottom:48px;
}
.footer-brand .logo{margin-bottom:18px}
.footer-brand p{font-size:14px;color:var(--text-3);max-width:320px;line-height:1.8}
.footer-col h4{font-size:15px;margin-bottom:18px;color:var(--text-1)}
.footer-col ul{display:flex;flex-direction:column;gap:12px}
.footer-col a,.footer-col span{font-size:14px;color:var(--text-3);transition:color var(--ease)}
.footer-col a:hover{color:var(--accent)}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  padding-top:24px;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}
.footer-bottom nav{display:flex;gap:20px;flex-wrap:wrap}
.footer-bottom a:hover{color:var(--accent)}

/* 响应式 */
@media (max-width:1200px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:40px;max-width:820px;margin:0 auto}
  .toc{position:static}
  .article-aside{display:grid;grid-template-columns:1fr 1fr;gap:20px;align-items:start}
  .aside-card{margin-top:0}
}
@media (max-width:1024px){
  .nav-links{gap:20px}
  .nav-links a{font-size:14px}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .article-hero h1{font-size:36px}
}
@media (max-width:768px){
  .nav-links{
    position:fixed;top:64px;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:0;
    padding:16px 24px 28px;
    background:rgba(11,14,34,.97);
    backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
    border-bottom:1px solid var(--line);
    transform:translateY(-12px);opacity:0;visibility:hidden;pointer-events:none;
    transition:var(--ease);
  }
  .nav-links.is-open{transform:translateY(0);opacity:1;visibility:visible;pointer-events:auto}
  .nav-links a{padding:14px 0;border-bottom:1px solid var(--line);font-size:15.5px}
  .nav-links a::after{display:none}
  .nav-links a.is-active{color:var(--accent)}
  .nav-toggle{display:flex}
  .nav-actions .btn-secondary{display:none}
  .container{padding:0 20px}
  .article-hero{padding:48px 0 36px}
  .article-hero h1{font-size:30px}
  .article-section{padding:40px 0 64px}
  .article-aside{grid-template-columns:1fr}
  .pn-grid{grid-template-columns:1fr}
  .card-grid{grid-template-columns:1fr}
  .cta-band{padding:28px 24px;flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .article-hero h1{font-size:26px}
  .article-content h2{font-size:22px}
  .article-content h3{font-size:19px}
  .section-head{flex-direction:column;align-items:flex-start}
  .section-head h2{font-size:23px}
  .meta-row{gap:14px}
  .back-top{right:16px;bottom:18px;width:42px;height:42px}
}

/* roulang page: category1 */
:root{
  --bg-0:#080A18;
  --bg-1:#0E1230;
  --bg-2:#151A3D;
  --primary:#5A4BFF;
  --primary-2:#8A6BFF;
  --accent:#FFC46B;
  --accent-2:#35E0C8;
  --text-1:#F2F4FF;
  --text-2:#B7BEE0;
  --text-3:#7C85AE;
  --line:rgba(255,255,255,.12);
  --glass:rgba(255,255,255,.06);
  --danger:#FF6B81;
  --r-card:18px;
  --r-img:16px;
  --r-input:12px;
  --shadow-card:0 24px 60px -32px rgba(6,8,25,.9);
  --glow-btn:0 0 0 1px rgba(255,255,255,.08),0 12px 32px -12px rgba(90,75,255,.7),0 0 24px rgba(255,196,107,.22);
  --ease:cubic-bezier(.22,.61,.36,1);
  --s-8:8px;--s-12:12px;--s-16:16px;--s-24:24px;--s-32:32px;--s-48:48px;--s-64:64px;--s-96:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"HarmonyOS Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;line-height:1.8;color:var(--text-1);
  background:var(--bg-0);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;opacity:.12;
  background:
    radial-gradient(1.6px 1.6px at 12% 16%,#fff,transparent 60%),
    radial-gradient(1.4px 1.4px at 68% 8%,#fff,transparent 60%),
    radial-gradient(1.8px 1.8px at 32% 62%,#fff,transparent 60%),
    radial-gradient(1.3px 1.3px at 82% 44%,#fff,transparent 60%),
    radial-gradient(1.5px 1.5px at 54% 84%,#fff,transparent 60%),
    radial-gradient(1.2px 1.2px at 8% 88%,#fff,transparent 60%);
}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0 0 1.2em}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25;letter-spacing:-.01em}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;position:relative;z-index:1}
.section{padding:var(--s-96) 0;position:relative}
.section--alt{background:linear-gradient(180deg,var(--bg-0),var(--bg-1) 60%,var(--bg-0))}
.section-head{max-width:760px;margin-bottom:var(--s-48)}
.section-head h2{font-size:36px;line-height:1.2}
.section-head p{margin-top:var(--s-16);color:var(--text-2);font-size:16px;max-width:720px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--accent);letter-spacing:.08em;text-transform:uppercase;margin-bottom:var(--s-16)}
.eyebrow::before{content:"";width:24px;height:1px;background:linear-gradient(90deg,transparent,var(--accent))}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;height:72px;
  transition:height .22s var(--ease),background .22s var(--ease),border-color .22s var(--ease);
  border-bottom:1px solid transparent;
  background:linear-gradient(180deg,rgba(8,10,24,.72),rgba(8,10,24,.28));
  backdrop-filter:blur(14px) saturate(130%);
}
.site-header.is-scrolled{
  height:64px;
  background:rgba(8,10,24,.72);
  backdrop-filter:blur(18px) saturate(140%);
  border-bottom-color:var(--line);
}
.nav-inner{display:flex;align-items:center;gap:var(--s-24);height:100%}
.logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
  width:28px;height:28px;border-radius:50%;flex-shrink:0;
  background:
    radial-gradient(circle at 50% 50%,#FFF6E4 0 18%,rgba(255,196,107,.6) 19% 30%,transparent 31%),
    conic-gradient(from 20deg,rgba(255,196,107,.95),rgba(90,75,255,.35),rgba(255,196,107,.95));
  box-shadow:0 0 18px rgba(255,196,107,.35),inset 0 0 0 1px rgba(255,255,255,.18);
}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-text b{font-size:16px;font-weight:700;letter-spacing:.01em}
.logo-text span{font-size:11px;color:var(--text-3);letter-spacing:.14em}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:var(--s-16)}
.nav-links a{
  position:relative;padding:8px 14px;border-radius:999px;
  font-size:15px;color:var(--text-2);transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-links a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--accent),var(--primary-2));
  transform:scaleX(0);transform-origin:left;transition:transform .24s var(--ease);
}
.nav-links a:hover{color:var(--text-1);background:rgba(255,255,255,.05)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.is-active{color:var(--text-1)}
.nav-links a.is-active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--line);
  background:var(--glass);align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.nav-toggle span{display:block;width:16px;height:1.6px;background:var(--text-1);border-radius:2px;transition:transform .22s var(--ease),opacity .22s var(--ease)}
body.nav-open .nav-toggle span:nth-child(1){transform:translateY(5.6px) rotate(45deg)}
body.nav-open .nav-toggle span:nth-child(2){opacity:0}
body.nav-open .nav-toggle span:nth-child(3){transform:translateY(-5.6px) rotate(-45deg)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:999px;font-size:15px;font-weight:600;
  white-space:nowrap;transition:transform .2s var(--ease),filter .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease);
}
.btn:active{transform:translateY(1px)}
.btn-primary{
  color:#0A0C1C;
  background:linear-gradient(115deg,var(--accent) 0%,#FFD79B 26%,var(--primary-2) 78%,var(--primary) 100%);
  box-shadow:var(--glow-btn);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px)}
.btn-secondary{
  color:var(--text-1);background:var(--glass);border:1px solid rgba(255,255,255,.14);
  backdrop-filter:blur(18px) saturate(140%);
}
.btn-secondary:hover{background:rgba(255,255,255,.1);transform:translateY(-2px);border-color:rgba(255,196,107,.4)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-lg{height:52px;padding:0 30px;font-size:16px}
.btn-block{width:100%}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:999px;
  font-size:12px;line-height:1;border:1px solid var(--line);color:var(--text-2);background:rgba(255,255,255,.04);
}
.badge--accent{border-color:rgba(255,196,107,.45);color:var(--accent);background:rgba(255,196,107,.08)}
.badge--cyan{border-color:rgba(53,224,200,.4);color:var(--accent-2);background:rgba(53,224,200,.08)}

/* ---------- 面包屑 ---------- */
.crumbs{padding:20px 0 0;font-size:13px;color:var(--text-3)}
.crumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.crumbs li{display:inline-flex;align-items:center;gap:8px}
.crumbs li+li::before{content:"/";color:var(--text-3);opacity:.6}
.crumbs a{color:var(--text-2);transition:color .2s var(--ease)}
.crumbs a:hover{color:var(--accent)}
.crumbs [aria-current="page"]{color:var(--text-1)}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  padding:56px 0 var(--s-96);
  background-image:url(/assets/images/backpic/back-1.png);
  background-size:cover;background-position:center;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(8,10,24,.9) 0%,rgba(14,18,48,.74) 52%,rgba(8,10,24,.92) 100%);
}
.page-hero::after{
  content:"";position:absolute;right:-160px;top:-120px;width:520px;height:520px;border-radius:50%;
  border:1px solid rgba(255,255,255,.1);opacity:.7;pointer-events:none;
}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:var(--s-48);align-items:end;position:relative;z-index:1}
.hero-copy h1{font-size:52px;line-height:1.12;letter-spacing:-.02em;font-weight:800}
.hero-copy h1 em{font-style:normal;color:var(--accent)}
.hero-copy .lede{margin-top:var(--s-24);font-size:18px;line-height:1.75;color:var(--text-2);max-width:620px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:var(--s-24)}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:var(--s-32)}
.hero-metrics{display:flex;flex-direction:column;gap:18px;padding-bottom:6px}
.metric-card{
  border-radius:var(--r-card);padding:22px 24px;
  background:linear-gradient(160deg,rgba(21,26,61,.94),rgba(14,18,48,.86));
  border:1px solid var(--line);box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.08);
}
.metric-card:last-child{margin-left:28px}
.metric-card .num{font-family:"Inter",var(--text-1);font-size:34px;font-weight:800;line-height:1.1;color:var(--accent);letter-spacing:-.02em}
.metric-card .lbl{margin-top:8px;font-size:13px;color:var(--text-2);line-height:1.6}

/* ---------- 阶段时间轴 ---------- */
.stages{position:relative;margin-top:var(--s-16)}
.stages::before{
  content:"";position:absolute;left:50%;top:8px;bottom:8px;width:2px;transform:translateX(-1px);
  background:linear-gradient(180deg,transparent,rgba(255,196,107,.35) 18%,rgba(90,75,255,.4) 70%,transparent);
}
.stage{display:grid;grid-template-columns:1fr 1fr;gap:var(--s-48);align-items:center;padding:var(--s-32) 0;position:relative}
.stage:nth-child(even) .stage-media{order:-1}
.stage-text{max-width:520px}
.stage:nth-child(even) .stage-text{margin-left:auto}
.stage-index{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:50%;border:1px solid rgba(255,196,107,.5);
  color:var(--accent);font-weight:700;font-size:16px;
  box-shadow:0 0 22px rgba(255,196,107,.22),inset 0 0 0 1px rgba(255,255,255,.06);
  background:rgba(255,196,107,.06);
}
.stage-text h3{margin-top:var(--s-16);font-size:24px;line-height:1.35}
.stage-text p{margin-top:var(--s-12);color:var(--text-2);font-size:16px}
.stage-list{margin-top:var(--s-16)}
.stage-list li{position:relative;padding-left:18px;color:var(--text-2);font-size:15px;margin-bottom:8px}
.stage-list li::before{content:"";position:absolute;left:0;top:.72em;width:6px;height:6px;border-radius:50%;background:var(--accent);opacity:.85}
.stage-media img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-img);border:1px solid var(--line);box-shadow:var(--shadow-card)}
.stage-media figcaption{margin-top:12px;font-size:13px;color:var(--text-3);text-align:center}

/* ---------- 参数对照条 ---------- */
.spec-bar{
  margin-top:var(--s-16);border-radius:var(--r-card);border:1px solid var(--line);
  background:linear-gradient(140deg,rgba(21,26,61,.9),rgba(14,18,48,.8));
  box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.06);
  padding:var(--s-8) var(--s-24);
}
.spec-grid{display:grid;grid-template-columns:repeat(3,1fr)}
.spec-item{padding:var(--s-24) var(--s-16);border-bottom:1px solid rgba(255,255,255,.08);border-right:1px solid rgba(255,255,255,.08)}
.spec-grid .spec-item:nth-child(3n){border-right:0}
.spec-grid .spec-item:nth-last-child(-n+3){border-bottom:0}
.spec-item dt{font-size:13px;color:var(--text-3);letter-spacing:.02em}
.spec-item dd{margin:6px 0 0;font-size:16px;font-weight:600;color:var(--text-1)}
.spec-item dd small{display:block;margin-top:4px;font-size:13px;font-weight:400;color:var(--text-2)}

/* ---------- FAQ ---------- */
.faq-list{margin-top:var(--s-32);border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;min-height:64px;display:flex;align-items:center;justify-content:space-between;gap:var(--s-24);
  padding:14px 0;text-align:left;font-size:17px;font-weight:600;color:var(--text-1);
  transition:color .2s var(--ease);
}
.faq-q:hover{color:var(--accent)}
.faq-arrow{
  width:10px;height:10px;flex-shrink:0;margin-right:6px;
  border-right:2px solid var(--text-3);border-bottom:2px solid var(--text-3);
  transform:rotate(45deg);transition:transform .22s var(--ease),border-color .22s var(--ease);
}
.faq-item.is-open .faq-arrow{transform:rotate(-135deg);border-color:var(--accent)}
.faq-a{max-height:0;overflow:hidden;opacity:0;transition:max-height .28s var(--ease),opacity .2s var(--ease)}
.faq-item.is-open .faq-a{max-height:360px;opacity:1}
.faq-a p{padding:0 0 22px;margin:0;max-width:820px;color:var(--text-2);font-size:15px}

/* ---------- CTA 通栏 ---------- */
.cta-band{
  border-radius:var(--r-card);padding:var(--s-48);
  display:flex;align-items:center;justify-content:space-between;gap:var(--s-32);
  background:linear-gradient(120deg,rgba(255,255,255,.07),rgba(90,75,255,.14));
  border:1px solid rgba(255,255,255,.14);
  backdrop-filter:blur(18px) saturate(140%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.18),var(--shadow-card);
}
.cta-band h2{font-size:28px;line-height:1.3}
.cta-band p{margin-top:10px;color:var(--text-2);font-size:15px;max-width:600px}
.cta-band .cta-actions{display:flex;gap:14px;flex-shrink:0}
.cta-note{margin-top:var(--s-16);font-size:12px;color:var(--text-3)}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;margin-top:var(--s-96);padding:var(--s-64) 0 var(--s-24);
  background:#06070F;border-top:1px solid rgba(255,255,255,.1);
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:-1px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,196,107,.7),rgba(90,75,255,.7),transparent);
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:var(--s-32)}
.footer-brand p{margin-top:var(--s-16);color:var(--text-3);font-size:14px;max-width:320px}
.footer-col h4{font-size:15px;color:var(--text-1);margin-bottom:var(--s-16)}
.footer-col ul li{margin-bottom:10px;font-size:14px;color:var(--text-3)}
.footer-col ul li a{color:var(--text-2);transition:color .2s var(--ease)}
.footer-col ul li a:hover{color:var(--accent)}
.footer-bottom{
  margin-top:var(--s-48);padding-top:var(--s-24);border-top:1px solid rgba(255,255,255,.08);
  display:flex;flex-wrap:wrap;gap:var(--s-16);align-items:center;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}
.footer-bottom nav{display:flex;flex-wrap:wrap;gap:var(--s-24)}
.footer-bottom nav a{color:var(--text-3);transition:color .2s var(--ease)}
.footer-bottom nav a:hover{color:var(--accent)}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:var(--s-32)}
  .hero-metrics{flex-direction:row;flex-wrap:wrap;padding-bottom:0}
  .metric-card{flex:1 1 240px}
  .metric-card:last-child{margin-left:0}
  .stage{grid-template-columns:1fr;gap:var(--s-24)}
  .stage:nth-child(even) .stage-media{order:0}
  .stage-text,.stage:nth-child(even) .stage-text{max-width:none;margin-left:0}
  .stages::before{display:none}
  .spec-grid{grid-template-columns:repeat(2,1fr)}
  .spec-grid .spec-item:nth-child(3n){border-right:1px solid rgba(255,255,255,.08)}
  .spec-grid .spec-item:nth-child(2n){border-right:0}
  .spec-grid .spec-item:nth-last-child(-n+3){border-bottom:1px solid rgba(255,255,255,.08)}
  .spec-grid .spec-item:nth-last-child(-n+2){border-bottom:0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:var(--s-32)}
}
@media (max-width:768px){
  .container{padding:0 20px}
  .section{padding:var(--s-64) 0}
  .section-head h2{font-size:26px}
  .hero-copy h1{font-size:32px}
  .hero-copy .lede{font-size:16px}
  .page-hero{padding:32px 0 var(--s-64)}
  .nav-links{
    position:fixed;left:0;right:0;top:64px;display:none;flex-direction:column;align-items:stretch;gap:6px;
    padding:20px;margin:0;background:rgba(8,10,24,.96);
    backdrop-filter:blur(18px) saturate(140%);border-bottom:1px solid var(--line);
  }
  body.nav-open .nav-links{display:flex}
  .nav-links a{padding:12px 14px;border-radius:12px;background:rgba(255,255,255,.04)}
  .nav-links a::after{display:none}
  .nav-links a.is-active{background:rgba(255,196,107,.1);color:var(--accent)}
  .nav-toggle{display:inline-flex}
  .nav-actions .btn-secondary{display:none}
  .nav-actions .btn-sm{height:40px}
  .logo-text span{display:none}
  .cta-band{flex-direction:column;align-items:flex-start;padding:var(--s-32) var(--s-24)}
  .cta-band .cta-actions{width:100%;flex-direction:column}
  .cta-band .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:var(--s-24)}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .stage-text h3{font-size:20px}
}
@media (max-width:520px){
  .spec-grid{grid-template-columns:1fr}
  .spec-grid .spec-item{border-right:0!important}
  .spec-grid .spec-item:nth-last-child(-n+2){border-bottom:1px solid rgba(255,255,255,.08)}
  .spec-grid .spec-item:last-child{border-bottom:0}
  .hero-actions .btn{width:100%}
  .metric-card{padding:18px}
  .section-head h2{font-size:24px}
  .faq-q{font-size:15.5px;gap:12px}
}

/* roulang page: category2 */
:root{
  --bg-0:#080A18;
  --bg-1:#0E1230;
  --bg-2:#151A3D;
  --primary:#5A4BFF;
  --primary-2:#8A6BFF;
  --accent:#FFC46B;
  --accent-2:#35E0C8;
  --text-1:#F2F4FF;
  --text-2:#B7BEE0;
  --text-3:#7C85AE;
  --line:rgba(255,255,255,.12);
  --glass:rgba(255,255,255,.06);
  --danger:#FF6B81;
  --r-card:18px;
  --r-btn:999px;
  --r-input:12px;
  --r-img:16px;
  --shadow-card:0 24px 60px -32px rgba(6,8,25,.9);
  --shadow-glow:0 0 0 1px rgba(255,255,255,.08),0 12px 32px -12px rgba(90,75,255,.7),0 0 24px rgba(255,196,107,.22);
  --ease:cubic-bezier(.22,.61,.36,1);
  --container:1200px;
  --pad:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"HarmonyOS Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text-1);
  background-color:var(--bg-0);
  background-image:
    radial-gradient(1px 1px at 12% 18%,rgba(255,255,255,.11),transparent 60%),
    radial-gradient(1px 1px at 32% 62%,rgba(255,255,255,.09),transparent 60%),
    radial-gradient(1.4px 1.4px at 68% 24%,rgba(255,196,107,.10),transparent 60%),
    radial-gradient(1px 1px at 84% 74%,rgba(255,255,255,.08),transparent 60%),
    radial-gradient(1px 1px at 52% 88%,rgba(53,224,200,.08),transparent 60%),
    linear-gradient(180deg,var(--bg-0) 0%,var(--bg-1) 52%,var(--bg-0) 100%);
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-radius:var(--r-img);}
a{color:inherit;text-decoration:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;line-height:1.25;letter-spacing:-.01em;}
p{margin:0 0 1.2em;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:var(--pad) 0;position:relative;}
.section-head{max-width:720px;margin-bottom:48px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--accent);margin-bottom:16px;
}
.eyebrow::before{content:"";width:24px;height:1px;background:linear-gradient(90deg,transparent,var(--accent));}
.h2{font-size:36px;font-weight:700;}
.h3{font-size:24px;font-weight:600;line-height:1.35;}
.h4{font-size:18px;font-weight:600;line-height:1.4;}
.lead{font-size:16px;color:var(--text-2);}
.muted{color:var(--text-3);font-size:14px;}
.hairline{height:1px;border:0;background:linear-gradient(90deg,transparent,rgba(255,196,107,.45),rgba(90,75,255,.35),transparent);}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1px solid transparent;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;
  padding:0 24px;height:44px;cursor:pointer;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
  white-space:nowrap;
}
.btn-sm{height:36px;padding:0 18px;font-size:14px;}
.btn-lg{height:52px;padding:0 32px;font-size:16px;}
.btn-primary{
  background:linear-gradient(120deg,var(--accent) 0%,#FFB05C 38%,var(--primary) 100%);
  color:#141033;box-shadow:var(--shadow-glow);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px);}
.btn-primary:active{transform:translateY(1px);}
.btn-secondary{
  background:var(--glass);color:var(--text-1);
  border-color:rgba(255,255,255,.14);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.14);
}
.btn-secondary:hover{transform:translateY(-2px);border-color:rgba(255,196,107,.5);color:var(--accent);}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text-1);}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent);}
.btn:disabled{opacity:.4;pointer-events:none;}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--accent);font-size:14px;font-weight:600;
  border-bottom:1px solid transparent;
  transition:border-color .2s var(--ease),color .2s var(--ease);
}
.text-link::after{content:"→";transition:transform .2s var(--ease);}
.text-link:hover{border-color:currentColor;}
.text-link:hover::after{transform:translateX(4px);}

/* ===== 徽章 ===== */
.badge{
  display:inline-flex;align-items:center;
  height:26px;padding:0 12px;border-radius:999px;
  font-size:12px;line-height:1;letter-spacing:.02em;
  border:1px solid var(--line);color:var(--text-2);
  background:rgba(255,255,255,.03);
}
.badge-accent{border-color:rgba(255,196,107,.45);color:var(--accent);background:rgba(255,196,107,.08);}
.badge-cyan{border-color:rgba(53,224,200,.42);color:var(--accent-2);background:rgba(53,224,200,.08);}
.badge-list{display:flex;flex-wrap:wrap;gap:10px;}

/* ===== 导航 ===== */
.site-header{
  position:sticky;top:0;z-index:60;
  transition:height .24s var(--ease),background .24s var(--ease),border-color .24s var(--ease),backdrop-filter .24s var(--ease);
  border-bottom:1px solid transparent;
}
.site-header.is-scrolled{
  background:rgba(8,10,24,.72);
  border-bottom-color:var(--line);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
}
.nav-inner{
  display:flex;align-items:center;gap:32px;
  height:72px;
}
.site-header.is-scrolled .nav-inner{height:64px;}
.logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{
  width:30px;height:30px;border-radius:50%;
  background:radial-gradient(circle at 34% 32%,#FFF3D6 0%,var(--accent) 34%,var(--primary) 78%);
  box-shadow:0 0 18px rgba(255,196,107,.38);
  position:relative;
}
.logo-mark::after{
  content:"";position:absolute;inset:-7px;
  border-radius:50%;
  border:1px solid rgba(255,255,255,.18);
  border-top-color:rgba(255,196,107,.55);
  transform:rotate(-24deg);
}
.logo-text{display:flex;flex-direction:column;line-height:1.1;}
.logo-text b{font-size:16px;font-weight:700;letter-spacing:.01em;}
.logo-text span{font-size:11px;color:var(--text-3);letter-spacing:.16em;}
.nav-links{display:flex;align-items:center;gap:28px;margin-left:8px;}
.nav-links a{
  position:relative;font-size:15px;color:var(--text-2);
  padding:6px 0;transition:color .2s var(--ease);
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  border-radius:2px;background:linear-gradient(90deg,var(--accent),var(--primary-2));
  transform:scaleX(0);transform-origin:left;transition:transform .24s var(--ease);
}
.nav-links a:hover{color:var(--text-1);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.is-active{color:var(--accent);}
.nav-links a.is-active::after{transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:12px;
  background:var(--glass);border:1px solid var(--line);
  padding:0;cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
.nav-toggle span{display:block;width:16px;height:1.6px;background:var(--text-1);border-radius:2px;transition:transform .2s var(--ease),opacity .2s var(--ease);}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(5.6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-5.6px) rotate(-45deg);}

/* ===== Hero ===== */
.hero{
  position:relative;overflow:hidden;
  padding:104px 0 96px;
  background-image:linear-gradient(180deg,rgba(8,10,24,.78),rgba(8,10,24,.9)),url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.hero::after{
  content:"";position:absolute;inset:auto -10% -60% -10%;height:70%;
  background:radial-gradient(ellipse at center,rgba(90,75,255,.28),transparent 68%);
  pointer-events:none;
}
.hero-inner{position:relative;z-index:1;max-width:820px;margin:0 auto;text-align:center;}
.breadcrumb{margin-bottom:24px;}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:10px;font-size:13px;color:var(--text-3);}
.breadcrumb li{display:flex;align-items:center;gap:10px;}
.breadcrumb li:not(:last-child)::after{content:"/";color:rgba(255,255,255,.22);}
.breadcrumb a{color:var(--text-2);transition:color .2s var(--ease);}
.breadcrumb a:hover{color:var(--accent);}
.hero h1{
  font-size:52px;font-weight:800;letter-spacing:-.02em;line-height:1.12;
  margin-bottom:20px;
  background:linear-gradient(120deg,#FFFFFF 0%,#E9E6FF 42%,var(--accent) 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-lead{font-size:17px;color:var(--text-2);max-width:640px;margin:0 auto 24px;}
.hero .badge-list{justify-content:center;}
.hero-sig{margin-top:32px;font-size:13px;color:var(--text-3);}

/* ===== 分栏矩阵 ===== */
.matrix{display:grid;grid-template-columns:236px minmax(0,1fr);gap:56px;align-items:start;}
.matrix-nav{position:sticky;top:96px;}
.matrix-nav h2{font-size:14px;letter-spacing:.14em;color:var(--text-3);font-weight:600;text-transform:uppercase;margin-bottom:18px;}
.matrix-nav ul{display:flex;flex-direction:column;gap:4px;border-left:1px solid var(--line);}
.matrix-nav a{
  display:block;position:relative;
  padding:10px 0 10px 18px;font-size:14.5px;color:var(--text-2);
  transition:color .2s var(--ease),padding-left .2s var(--ease);
}
.matrix-nav a::before{
  content:"";position:absolute;left:-1px;top:8px;bottom:8px;width:2px;border-radius:2px;
  background:linear-gradient(180deg,var(--accent),var(--primary-2));
  transform:scaleY(0);transform-origin:top;transition:transform .22s var(--ease);
}
.matrix-nav a:hover{color:var(--text-1);padding-left:22px;}
.matrix-nav a.is-current{color:var(--accent);}
.matrix-nav a.is-current::before{transform:scaleY(1);}
.matrix-nav .nav-note{margin-top:24px;padding:16px;border-radius:14px;background:var(--bg-2);border:1px solid var(--line);font-size:13px;color:var(--text-3);line-height:1.7;}

.matrix-body{display:flex;flex-direction:column;gap:32px;}
.group{
  background:var(--bg-2);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:32px;
  box-shadow:var(--shadow-card);
  scroll-margin-top:110px;
  transition:border-color .22s var(--ease),transform .22s var(--ease);
}
.group:hover{border-color:rgba(255,196,107,.3);transform:translateY(-2px);}
.group-top{display:flex;align-items:center;gap:14px;margin-bottom:16px;}
.group-no{
  flex-shrink:0;width:38px;height:38px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:700;color:var(--accent);
  border:1px solid rgba(255,196,107,.45);
  box-shadow:0 0 18px rgba(255,196,107,.18);
  font-family:"Inter",sans-serif;
}
.group h3{font-size:22px;font-weight:600;}
.group p{color:var(--text-2);margin-top:12px;}
.check-list{margin-top:18px;display:flex;flex-direction:column;gap:10px;}
.check-list li{
  position:relative;padding-left:26px;font-size:14.5px;color:var(--text-2);
}
.check-list li::before{
  content:"";position:absolute;left:0;top:9px;width:14px;height:14px;border-radius:50%;
  background:rgba(53,224,200,.12);
  border:1px solid rgba(53,224,200,.5);
}
.check-list li::after{
  content:"";position:absolute;left:4px;top:13px;width:6px;height:3px;
  border-left:1.6px solid var(--accent-2);border-bottom:1.6px solid var(--accent-2);
  transform:rotate(-45deg);
}
.group-figure{margin:24px 0 0;}
.group-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.group-figure figcaption{margin-top:10px;text-align:center;font-size:13px;color:var(--text-3);}
.note-inline{
  margin-top:18px;padding:14px 18px;border-radius:12px;
  background:var(--glass);border-left:3px solid var(--accent);
  font-size:14px;color:var(--text-2);
}

/* ===== 规格描述列表 ===== */
.spec-wrap{
  margin-top:96px;padding:40px;border-radius:var(--r-card);
  border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(21,26,61,.9),rgba(14,18,48,.9));
}
.spec-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 48px;margin:0;}
.spec-grid > div{
  display:flex;justify-content:space-between;gap:24px;
  padding:16px 0;border-bottom:1px dashed rgba(255,255,255,.1);
}
.spec-grid dt{color:var(--text-3);font-size:14px;flex-shrink:0;}
.spec-grid dd{margin:0;font-size:14.5px;color:var(--text-1);text-align:right;}

/* ===== 场景卡 2x2 ===== */
.scene-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.scene-card{
  padding:28px;border-radius:var(--r-card);
  background:var(--bg-2);border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  transition:transform .22s var(--ease),border-color .22s var(--ease);
}
.scene-card:hover{transform:translateY(-2px);border-color:rgba(255,196,107,.3);}
.scene-icon{
  width:44px;height:44px;border-radius:14px;margin-bottom:18px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(90,75,255,.16);border:1px solid rgba(138,107,255,.4);
  color:var(--accent-2);font-size:18px;font-weight:700;font-family:"Inter",sans-serif;
}
.scene-card h3{font-size:19px;font-weight:600;margin-bottom:10px;}
.scene-card p{font-size:14.5px;color:var(--text-2);margin-bottom:0;}
.scene-card .badge{margin-top:16px;}

/* ===== CTA 通栏 ===== */
.cta-band{
  border-radius:24px;
  padding:48px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.14);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.18),var(--shadow-card);
}
.cta-band h2{font-size:28px;font-weight:700;margin-bottom:10px;}
.cta-band p{margin:0;color:var(--text-2);font-size:15px;max-width:560px;}
.cta-actions{display:flex;gap:14px;flex-shrink:0;}
.cta-fine{margin-top:14px;font-size:12px;color:var(--text-3);}

/* ===== 页脚 ===== */
.site-footer{
  margin-top:var(--pad);
  background:linear-gradient(180deg,rgba(6,8,22,.4),rgba(4,6,18,.96));
  border-top:1px solid transparent;
  position:relative;
}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,196,107,.5),rgba(90,75,255,.4),transparent);
}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:48px;
  padding:72px 0 48px;
}
.footer-brand p{margin-top:18px;font-size:14px;color:var(--text-3);max-width:320px;line-height:1.8;}
.footer-col h4{font-size:15px;font-weight:600;margin-bottom:18px;color:var(--text-1);}
.footer-col ul{display:flex;flex-direction:column;gap:12px;}
.footer-col a,.footer-col span{font-size:14px;color:var(--text-3);transition:color .2s var(--ease);}
.footer-col a:hover{color:var(--accent);}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  padding:22px 0 32px;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}
.footer-bottom nav{display:flex;gap:20px;flex-wrap:wrap;}
.footer-bottom a{color:var(--text-3);transition:color .2s var(--ease);}
.footer-bottom a:hover{color:var(--accent);}

/* ===== 响应式 ===== */
@media (max-width:1024px){
  :root{--pad:72px;}
  .hero h1{font-size:40px;}
  .h2{font-size:30px;}
  .matrix{grid-template-columns:1fr;gap:32px;}
  .matrix-nav{position:static;}
  .matrix-nav ul{
    flex-direction:row;flex-wrap:nowrap;overflow-x:auto;gap:10px;
    border-left:0;padding-bottom:6px;-webkit-overflow-scrolling:touch;
  }
  .matrix-nav li{flex:0 0 auto;}
  .matrix-nav a{
    padding:8px 16px;border:1px solid var(--line);border-radius:999px;
    background:rgba(255,255,255,.03);white-space:nowrap;
  }
  .matrix-nav a::before{display:none;}
  .matrix-nav a:hover{padding-left:16px;}
  .matrix-nav a.is-current{border-color:rgba(255,196,107,.5);background:rgba(255,196,107,.1);}
  .matrix-nav .nav-note{display:none;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
}
@media (max-width:768px){
  :root{--pad:64px;}
  .container{padding:0 20px;}
  .nav-links{
    position:absolute;top:100%;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:0;
    background:rgba(10,12,28,.96);
    border-top:1px solid var(--line);border-bottom:1px solid var(--line);
    backdrop-filter:blur(18px) saturate(140%);
    -webkit-backdrop-filter:blur(18px) saturate(140%);
    padding:8px 24px 20px;
    max-height:0;overflow:hidden;opacity:0;pointer-events:none;
    transition:max-height .28s var(--ease),opacity .24s var(--ease);
  }
  .site-header.is-open .nav-links{max-height:320px;opacity:1;pointer-events:auto;}
  .nav-links a{padding:14px 0;border-bottom:1px solid rgba(255,255,255,.06);font-size:15px;}
  .nav-links a::after{display:none;}
  .nav-links a.is-active{color:var(--accent);}
  .nav-toggle{display:flex;}
  .nav-actions .btn-secondary{display:none;}
  .nav-actions .btn-sm{height:40px!important;}
  .hero{padding:72px 0 64px;}
  .hero h1{font-size:32px;}
  .hero-lead{font-size:15.5px;}
  .h2{font-size:26px;}
  .group{padding:24px;}
  .group h3{font-size:20px;}
  .spec-wrap{padding:26px;margin-top:64px;}
  .spec-grid{grid-template-columns:1fr;}
  .spec-grid dd{text-align:left;}
  .scene-grid{grid-template-columns:1fr;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px;}
  .cta-actions{width:100%;flex-direction:column;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:32px;padding:56px 0 32px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:480px){
  .hero h1{font-size:28px;}
  .badge{height:24px;font-size:11.5px;}
  .group-top{gap:10px;}
  .group-no{width:32px;height:32px;font-size:13px;}
}