/* roulang page: index */
:root{
  --bg:#0A0E18;
  --bg-soft:#0D1322;
  --bg-deep:#070A12;
  --card:rgba(255,255,255,.045);
  --card-strong:rgba(255,255,255,.07);
  --line:rgba(255,255,255,.10);
  --line-soft:rgba(255,255,255,.06);
  --amber:#F0A868;
  --amber-bright:#FFC98A;
  --amber-deep:#C9854B;
  --cyan:#6FD3E8;
  --text:#E9EEF6;
  --text-2:#9BA8BE;
  --text-3:#6B7789;
  --radius-lg:18px;
  --radius:16px;
  --radius-sm:10px;
  --shadow:0 18px 48px rgba(0,0,0,.45);
  --shadow-soft:0 10px 30px rgba(0,0,0,.28);
  --container:1200px;
  --font: "PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Helvetica,Arial,"Inter","Manrope",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font);
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:
    radial-gradient(680px 420px at 82% -6%, rgba(240,168,104,.13), transparent 68%),
    radial-gradient(720px 460px at 6% 22%, rgba(111,211,232,.09), transparent 70%),
    radial-gradient(900px 520px at 50% 108%, rgba(240,168,104,.06), transparent 72%);
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;background:transparent;}
a:hover,a:focus{color:var(--amber);}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding-left:0;list-style:none;}
button{font-family:inherit;border:0;background:none;cursor:pointer;color:inherit;}
input,select,textarea{font-family:inherit;font-size:16px;}
:focus-visible{outline:2px solid var(--amber);outline-offset:3px;border-radius:4px;}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
  position:relative;
  z-index:1;
}
.section{
  padding:96px 0;
  position:relative;
  z-index:1;
}
.section--tight{padding:72px 0;}
.section--deep{background:var(--bg-deep);}
.section--soft{background:var(--bg-soft);}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:32px;
  margin-bottom:44px;
}
.section-head--center{
  flex-direction:column;
  align-items:center;
  text-align:center;
  gap:14px;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:13px;
  letter-spacing:.14em;
  color:var(--cyan);
  text-transform:uppercase;
  margin-bottom:16px;
}
.eyebrow::before{
  content:"";
  width:22px;
  height:1px;
  background:var(--cyan);
  opacity:.7;
}
.section-title{
  font-size:34px;
  line-height:1.35;
  font-weight:600;
  letter-spacing:-.01em;
}
.section-desc{
  margin-top:14px;
  color:var(--text-2);
  font-size:15px;
  line-height:1.85;
  max-width:660px;
}
.link-more{
  color:var(--amber);
  font-size:14px;
  white-space:nowrap;
  border-bottom:1px solid rgba(240,168,104,.35);
  padding-bottom:2px;
  transition:color .25s,border-color .25s;
}
.link-more:hover{color:var(--amber-bright);border-color:var(--amber-bright);}

/* ============ 导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background .25s ease,border-color .25s ease,backdrop-filter .25s ease;
}
.site-header.is-scrolled{
  background:rgba(10,14,24,.86);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
}
.nav-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  min-height:78px;
}
.brand{
  display:flex;
  flex-direction:column;
  line-height:1.1;
  letter-spacing:.02em;
}
.brand-main{
  font-size:19px;
  font-weight:700;
  color:var(--text);
  transition:color .25s;
}
.brand-sub{
  font-size:11px;
  color:var(--text-3);
  letter-spacing:.36em;
  margin-top:5px;
}
.brand:hover .brand-main{color:var(--amber-bright);}
.nav-menu{
  display:flex;
  align-items:center;
  gap:34px;
}
.nav-link{
  position:relative;
  font-size:15px;
  color:var(--text-2);
  padding:8px 0;
  transition:color .25s;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;
  bottom:0;
  width:0;
  height:2px;
  background:var(--amber);
  border-radius:2px;
  transition:width .25s ease;
}
.nav-link:hover{color:var(--text);}
.nav-link:hover::after{width:100%;}
.nav-link.is-active{color:var(--text);}
.nav-link.is-active::after{width:100%;}
.nav-cta{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:40px;
  padding:0 20px;
  border:1px solid rgba(240,168,104,.5);
  border-radius:999px;
  font-size:14px;
  color:var(--amber);
  transition:background .25s,color .25s,border-color .25s,transform .25s;
}
.nav-cta:hover{
  background:rgba(240,168,104,.12);
  color:var(--amber-bright);
  border-color:var(--amber);
  transform:translateY(-1px);
}
.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  border-radius:10px;
  border:1px solid var(--line);
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
}
.nav-toggle span{
  display:block;
  width:18px;
  height:1.5px;
  background:var(--text);
  border-radius:2px;
  transition:transform .25s,opacity .25s;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6.5px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6.5px) rotate(-45deg);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:48px;
  padding:0 28px;
  border-radius:var(--radius-sm);
  font-size:15px;
  font-weight:500;
  letter-spacing:.02em;
  transition:transform .25s ease,box-shadow .25s ease,background .25s ease,border-color .25s ease,color .25s ease;
}
.btn-primary{
  background:linear-gradient(135deg,var(--amber-bright),var(--amber) 55%,var(--amber-deep));
  color:#20130A;
  box-shadow:0 8px 28px rgba(240,168,104,.28);
}
.btn-primary:hover{
  color:#1A0F06;
  transform:translateY(-2px);
  box-shadow:0 12px 36px rgba(240,168,104,.40);
}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 18px rgba(240,168,104,.3);}
.btn-ghost{
  border:1px solid var(--line);
  color:var(--text);
  background:transparent;
}
.btn-ghost:hover{
  border-color:rgba(240,168,104,.65);
  background:rgba(240,168,104,.07);
  color:var(--amber-bright);
  transform:translateY(-2px);
}

/* ============ Hero ============ */
.hero{
  padding:64px 0 88px;
  position:relative;
  z-index:1;
}
.hero-grid{gap:20px;}
.hero-title{
  font-size:48px;
  line-height:1.25;
  font-weight:700;
  letter-spacing:-.01em;
  margin-bottom:20px;
}
.hero-title em{
  font-style:normal;
  color:var(--amber);
}
.hero-sub{
  font-size:17px;
  line-height:1.85;
  color:var(--text-2);
  max-width:540px;
  margin-bottom:20px;
}
.hero-points{
  display:flex;
  flex-wrap:wrap;
  gap:10px 22px;
  margin-bottom:32px;
}
.hero-points li{
  font-size:14px;
  color:var(--text-2);
  position:relative;
  padding-left:16px;
}
.hero-points li::before{
  content:"";
  position:absolute;
  left:0;
  top:9px;
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--cyan);
  opacity:.85;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-bottom:40px;
}
.trust-row{
  display:flex;
  flex-wrap:wrap;
  gap:0;
  border-top:1px solid var(--line);
  padding-top:26px;
}
.trust-item{
  padding:0 26px;
  border-left:1px solid var(--line);
  min-width:130px;
}
.trust-item:first-child{padding-left:0;border-left:0;}
.trust-num{
  font-size:28px;
  font-weight:700;
  color:var(--amber);
  line-height:1.2;
  font-variant-numeric:tabular-nums;
}
.trust-label{
  font-size:13px;
  color:var(--text-3);
  margin-top:4px;
  letter-spacing:.02em;
}
.hero-visual{position:relative;}
.hero-figure{
  position:relative;
  border-radius:var(--radius-lg);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  aspect-ratio:16/10;
  background:var(--bg-soft);
}
.hero-figure img{
  width:100%;
  height:100%;
  object-fit:cover;
}
.hero-figure::after{
  content:"";
  position:absolute;
  inset:0;
  background:
    radial-gradient(320px 200px at 78% 18%, rgba(240,168,104,.28), transparent 70%),
    linear-gradient(180deg, rgba(7,10,18,.10), rgba(7,10,18,.62));
}
.hero-figure::before{
  content:"";
  position:absolute;
  inset:0;
  z-index:2;
  background-image:
    linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size:56px 56px;
  opacity:.5;
  pointer-events:none;
}
.hero-badge{
  position:absolute;
  left:24px;
  bottom:24px;
  z-index:3;
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:10px 16px;
  border-radius:999px;
  background:rgba(7,10,18,.72);
  border:1px solid rgba(240,168,104,.35);
  font-size:13px;
  color:var(--amber-bright);
  backdrop-filter:blur(10px);
}
.hero-badge i{
  width:7px;height:7px;border-radius:50%;
  background:#7CE0A3;
  box-shadow:0 0 0 4px rgba(124,224,163,.18);
}

/* ============ 能力卡 ============ */
.cap-card{
  height:100%;
  padding:28px;
  border-radius:var(--radius);
  background:var(--card);
  border:1px solid var(--line-soft);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.cap-card:hover{
  transform:translateY(-4px);
  border-color:rgba(240,168,104,.45);
  box-shadow:var(--shadow-soft);
}
.cap-icon{
  width:42px;height:42px;
  border-radius:12px;
  display:flex;
  align-items:center;
  justify-content:center;
  background:rgba(111,211,232,.12);
  border:1px solid rgba(111,211,232,.28);
  color:var(--cyan);
  font-size:17px;
  font-weight:700;
  margin-bottom:18px;
}
.cap-card h3{
  font-size:19px;
  font-weight:600;
  margin-bottom:10px;
}
.cap-card p{
  font-size:14px;
  line-height:1.85;
  color:var(--text-2);
}

/* ============ 阶梯 ============ */
.ladder{
  position:relative;
  margin-top:10px;
}
.ladder-item{
  position:relative;
  padding:26px 22px 24px;
  border-radius:var(--radius);
  background:var(--card);
  border:1px solid var(--line-soft);
  height:100%;
  transition:transform .25s,border-color .25s,box-shadow .25s;
}
.ladder-item:hover{
  transform:translateY(-4px);
  border-color:rgba(240,168,104,.4);
}
.ladder-item.is-current{
  border-color:rgba(240,168,104,.62);
  background:rgba(240,168,104,.07);
  box-shadow:0 16px 40px rgba(240,168,104,.12);
}
.ladder-num{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:34px;height:34px;
  border-radius:50%;
  background:rgba(240,168,104,.14);
  border:1px solid rgba(240,168,104,.4);
  color:var(--amber);
  font-size:14px;
  font-weight:700;
  margin-bottom:16px;
  font-variant-numeric:tabular-nums;
}
.ladder-item h3{
  font-size:17px;
  font-weight:600;
  margin-bottom:8px;
}
.ladder-item p{
  font-size:14px;
  color:var(--text-2);
  line-height:1.8;
  min-height:52px;
}
.ladder-threshold{
  margin-top:16px;
  padding-top:14px;
  border-top:1px dashed var(--line);
  font-size:13px;
  color:var(--text-3);
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap:10px;
}
.ladder-threshold strong{
  color:var(--amber);
  font-size:18px;
  font-weight:700;
  font-variant-numeric:tabular-nums;
}

/* ============ 方案对比 ============ */
.plans{margin-top:8px;}
.plan-card{
  height:100%;
  padding:30px 26px;
  border-radius:var(--radius-lg);
  background:var(--card);
  border:1px solid var(--line-soft);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  display:flex;
  flex-direction:column;
  transition:transform .25s,border-color .25s,box-shadow .25s;
}
.plan-card:hover{transform:translateY(-4px);border-color:rgba(240,168,104,.35);}
.plan-card.is-featured{
  border-color:rgba(240,168,104,.65);
  background:rgba(240,168,104,.06);
  transform:scale(1.03);
  box-shadow:0 24px 60px rgba(240,168,104,.14);
}
.plan-card.is-featured:hover{transform:scale(1.03) translateY(-4px);}
.plan-flag{
  display:inline-block;
  align-self:flex-start;
  padding:4px 12px;
  border-radius:999px;
  background:rgba(240,168,104,.18);
  border:1px solid rgba(240,168,104,.5);
  color:var(--amber-bright);
  font-size:12px;
  letter-spacing:.06em;
  margin-bottom:16px;
}
.plan-name{
  font-size:19px;
  font-weight:600;
  margin-bottom:6px;
}
.plan-note{
  font-size:13px;
  color:var(--text-3);
  margin-bottom:22px;
}
.plan-price{
  display:flex;
  align-items:baseline;
  gap:8px;
  padding-bottom:22px;
  border-bottom:1px solid var(--line);
  margin-bottom:22px;
}
.plan-price strong{
  font-size:38px;
  font-weight:700;
  color:var(--amber);
  line-height:1;
  font-variant-numeric:tabular-nums;
  letter-spacing:-.02em;
}
.plan-price span{font-size:13px;color:var(--text-3);}
.plan-list{flex:1;margin-bottom:26px;}
.plan-list li{
  position:relative;
  padding-left:24px;
  font-size:14px;
  line-height:1.9;
  color:var(--text-2);
  margin-bottom:8px;
}
.plan-list li::before{
  content:"✓";
  position:absolute;
  left:0;
  top:0;
  color:var(--cyan);
  font-size:13px;
}
.plan-list li.no{color:var(--text-3);}
.plan-list li.no::before{content:"—";color:var(--text-3);}
.plan-card .btn{width:100%;}

/* ============ 规格对比行 ============ */
.spec-rows{
  margin-top:48px;
  border-top:1px solid var(--line);
}
.spec-row{
  display:grid;
  grid-template-columns:1.1fr 1fr 1fr 1fr;
  gap:16px;
  padding:16px 4px;
  border-bottom:1px solid var(--line-soft);
  font-size:14px;
  color:var(--text-2);
}
.spec-row.head{
  color:var(--text-3);
  font-size:13px;
  letter-spacing:.06em;
  border-bottom-color:var(--line);
}
.spec-row strong{color:var(--text);font-weight:500;}
.spec-row .hl{color:var(--amber);}

/* ============ 状态条带 ============ */
.status-band{
  position:relative;
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background:rgba(255,255,255,.045);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  padding:34px 38px;
  overflow:hidden;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
}
.status-band::before{
  content:"";
  position:absolute;
  left:-90px;top:-70px;
  width:280px;height:280px;
  border-radius:50%;
  background:radial-gradient(circle, rgba(240,168,104,.30), transparent 68%);
  filter:blur(18px);
}
.status-band::after{
  content:"";
  position:absolute;
  right:-70px;bottom:-90px;
  width:260px;height:260px;
  border-radius:50%;
  background:radial-gradient(circle, rgba(111,211,232,.22), transparent 68%);
  filter:blur(18px);
}
.status-copy{position:relative;z-index:2;}
.status-copy h2{
  font-size:23px;
  font-weight:600;
  margin-bottom:8px;
}
.status-copy p{
  font-size:14px;
  color:var(--text-2);
  max-width:460px;
}
.status-right{
  position:relative;
  z-index:2;
  display:flex;
  align-items:center;
  gap:26px;
  flex-wrap:wrap;
}
.clock{
  display:flex;
  align-items:center;
  gap:8px;
  font-variant-numeric:tabular-nums;
}
.clock span{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-width:48px;
  height:48px;
  padding:0 8px;
  border-radius:10px;
  background:rgba(7,10,18,.7);
  border:1px solid rgba(240,168,104,.35);
  color:var(--amber-bright);
  font-size:20px;
  font-weight:600;
  letter-spacing:.04em;
}
.clock i{color:var(--text-3);font-style:normal;}

/* ============ 数据条带 ============ */
.stats-band{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  border:1px solid var(--line-soft);
  border-radius:var(--radius);
  background:var(--card);
  overflow:hidden;
}
.stat-cell{
  padding:30px 26px;
  border-left:1px solid var(--line-soft);
}
.stat-cell:first-child{border-left:0;}
.stat-cell strong{
  display:block;
  font-size:30px;
  font-weight:700;
  color:var(--amber);
  line-height:1.2;
  font-variant-numeric:tabular-nums;
}
.stat-cell span{
  display:block;
  font-size:13px;
  color:var(--text-3);
  margin-top:6px;
}

/* ============ 资讯卡片 ============ */
.news-grid{margin-top:6px;}
.news-card{
  display:flex;
  flex-direction:column;
  height:100%;
  border-radius:var(--radius);
  overflow:hidden;
  background:var(--card);
  border:1px solid var(--line-soft);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.news-card:hover{
  transform:translateY(-4px);
  border-color:rgba(240,168,104,.45);
  box-shadow:var(--shadow-soft);
}
.news-thumb{
  aspect-ratio:16/9;
  overflow:hidden;
  background:var(--bg-soft);
}
.news-thumb img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .35s ease;
}
.news-card:hover .news-thumb img{transform:scale(1.04);}
.news-body{
  padding:22px;
  display:flex;
  flex-direction:column;
  flex:1;
}
.news-meta{
  display:flex;
  align-items:center;
  gap:12px;
  margin-bottom:14px;
  flex-wrap:wrap;
}
.tag{
  display:inline-flex;
  align-items:center;
  padding:3px 11px;
  border-radius:999px;
  border:1px solid rgba(111,211,232,.35);
  color:var(--cyan);
  font-size:12px;
  letter-spacing:.04em;
  background:rgba(111,211,232,.06);
}
.news-date{
  font-size:13px;
  color:var(--text-3);
  letter-spacing:.02em;
  font-variant-numeric:tabular-nums;
}
.news-body h3{
  font-size:18px;
  font-weight:600;
  line-height:1.55;
  margin-bottom:10px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-body p{
  font-size:14px;
  line-height:1.8;
  color:var(--text-2);
  display:-webkit-box;
  -webkit-line-clamp:3;
  -webkit-box-orient:vertical;
  overflow:hidden;
  margin-bottom:18px;
  flex:1;
}
.news-foot{
  display:flex;
  align-items:center;
  gap:8px;
  color:var(--amber);
  font-size:14px;
}
.empty-state{
  width:100%;
  padding:64px 24px;
  text-align:center;
  border-radius:var(--radius);
  border:1px dashed var(--line);
  background:rgba(255,255,255,.02);
}
.empty-icon{
  width:54px;height:54px;
  margin:0 auto 16px;
  border-radius:50%;
  border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;
  color:var(--text-3);
  font-size:22px;
}
.empty-state p{
  color:var(--text-2);
  font-size:15px;
  margin-bottom:20px;
}

/* ============ 表单 ============ */
.consult-grid{gap:32px;}
.consult-info h2{
  font-size:32px;
  line-height:1.4;
  font-weight:600;
  margin-bottom:16px;
}
.consult-info > p{
  color:var(--text-2);
  font-size:15px;
  line-height:1.9;
  margin-bottom:26px;
  max-width:440px;
}
.consult-list li{
  position:relative;
  padding-left:26px;
  margin-bottom:14px;
  font-size:15px;
  color:var(--text-2);
  line-height:1.8;
}
.consult-list li strong{color:var(--text);font-weight:500;}
.consult-list li::before{
  content:"";
  position:absolute;
  left:0;
  top:11px;
  width:8px;height:8px;
  border-radius:2px;
  background:linear-gradient(135deg,var(--amber),var(--amber-deep));
}
.consult-contact{
  margin-top:30px;
  padding:18px 20px;
  border-radius:var(--radius-sm);
  border:1px solid var(--line-soft);
  background:rgba(255,255,255,.03);
  font-size:14px;
  color:var(--text-2);
  line-height:1.9;
}
.form-card{
  padding:32px;
  border-radius:var(--radius-lg);
  background:rgba(255,255,255,.045);
  border:1px solid var(--line);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow);
}
.form-card h3{
  font-size:20px;
  font-weight:600;
  margin-bottom:8px;
}
.form-tip{
  font-size:13px;
  color:var(--text-3);
  line-height:1.8;
  margin-bottom:24px;
  padding-bottom:20px;
  border-bottom:1px solid var(--line-soft);
}
.field{margin-bottom:18px;}
.field label{
  display:block;
  font-size:13px;
  color:var(--text-3);
  margin-bottom:8px;
  letter-spacing:.02em;
}
.field input,
.field select,
.field textarea{
  width:100%;
  padding:12px 14px;
  border-radius:var(--radius-sm);
  border:1px solid var(--line);
  background:rgba(7,10,18,.62);
  color:var(--text);
  line-height:1.6;
  transition:border-color .25s,box-shadow .25s,background .25s;
  appearance:none;
  -webkit-appearance:none;
}
.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% - 20px) 50%,calc(100% - 14px) 50%;
  background-size:6px 6px,6px 6px;
  background-repeat:no-repeat;
}
.field textarea{resize:vertical;min-height:110px;}
.field input::placeholder,
.field textarea::placeholder{color:rgba(107,119,137,.85);}
.field input:focus,
.field select:focus,
.field textarea:focus{
  outline:none;
  border-color:var(--amber);
  box-shadow:0 0 0 3px rgba(240,168,104,.18);
  background:rgba(7,10,18,.82);
}
.form-card .btn{width:100%;margin-top:6px;}
.form-note{
  margin-top:14px;
  font-size:13px;
  color:var(--cyan);
  min-height:20px;
  line-height:1.7;
}

/* ============ FAQ ============ */
.faq-wrap{max-width:860px;margin:0 auto;}
.faq-item{
  border-radius:var(--radius);
  background:rgba(255,255,255,.045);
  border:1px solid var(--line-soft);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  margin-bottom:14px;
  overflow:hidden;
  transition:border-color .25s,background .25s;
}
.faq-item.is-open{
  border-color:rgba(240,168,104,.42);
  background:rgba(240,168,104,.05);
}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:22px 24px;
  text-align:left;
  font-size:16px;
  font-weight:500;
  color:var(--text);
  line-height:1.6;
}
.faq-icon{
  position:relative;
  flex:0 0 auto;
  width:18px;height:18px;
}
.faq-icon::before,
.faq-icon::after{
  content:"";
  position:absolute;
  background:var(--amber);
  border-radius:2px;
  transition:transform .3s ease,opacity .3s ease;
}
.faq-icon::before{left:0;top:8px;width:18px;height:2px;}
.faq-icon::after{left:8px;top:0;width:2px;height:18px;}
.faq-item.is-open .faq-icon::after{transform:rotate(90deg);opacity:0;}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .3s ease;
}
.faq-a p{
  padding:0 24px 22px;
  font-size:15px;
  line-height:1.9;
  color:var(--text-2);
}

/* ============ CTA 尾部 ============ */
.cta-band{
  position:relative;
  overflow:hidden;
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  padding:56px 48px;
  background:
    radial-gradient(520px 300px at 88% 10%, rgba(240,168,104,.20), transparent 70%),
    radial-gradient(460px 280px at 4% 96%, rgba(111,211,232,.14), transparent 72%),
    var(--bg-soft);
  text-align:center;
}
.cta-band h2{
  font-size:31px;
  font-weight:600;
  line-height:1.4;
  margin-bottom:14px;
}
.cta-band p{
  color:var(--text-2);
  font-size:15px;
  line-height:1.9;
  max-width:620px;
  margin:0 auto 30px;
}
.cta-actions{
  display:flex;
  justify-content:center;
  gap:14px;
  flex-wrap:wrap;
}

/* ============ 页脚 ============ */
.site-footer{
  padding:72px 0 32px;
  background:var(--bg-deep);
  border-top:1px solid var(--line-soft);
  position:relative;
  z-index:1;
}
.footer-grid{gap:36px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{
  font-size:14px;
  color:var(--text-2);
  line-height:1.9;
  max-width:290px;
}
.footer-col h4{
  font-size:14px;
  color:var(--text-3);
  letter-spacing:.12em;
  margin-bottom:18px;
  font-weight:400;
}
.footer-col li{margin-bottom:11px;}
.footer-col a,
.footer-col span{
  font-size:15px;
  color:var(--text-2);
  transition:color .25s;
  line-height:1.7;
}
.footer-col a:hover{color:var(--amber);}
.footer-bottom{
  margin-top:48px;
  padding-top:24px;
  border-top:1px solid var(--line-soft);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--text-3);
  letter-spacing:.02em;
}

/* ============ 响应式 ============ */
@media screen and (max-width:1024px){
  .hero{padding:44px 0 68px;}
  .hero-title{font-size:38px;}
  .section{padding:76px 0;}
  .section-title{font-size:28px;}
  .status-band{flex-direction:column;align-items:flex-start;padding:30px;}
  .status-right{width:100%;justify-content:space-between;}
  .stats-band{grid-template-columns:repeat(2,1fr);}
  .stat-cell:nth-child(3){border-left:0;}
  .stat-cell:nth-child(n+3){border-top:1px solid var(--line-soft);}
  .plan-card.is-featured{transform:none;}
  .plan-card.is-featured:hover{transform:translateY(-4px);}
  .spec-row{grid-template-columns:1.2fr 1fr 1fr 1fr;font-size:13px;}
}
@media screen and (max-width:900px){
  .nav-toggle{display:flex;}
  .nav-menu{
    position:fixed;
    inset:78px 0 0 0;
    flex-direction:column;
    align-items:flex-start;
    justify-content:flex-start;
    gap:0;
    padding:24px 24px 48px;
    background:rgba(7,10,18,.97);
    backdrop-filter:blur(18px);
    -webkit-backdrop-filter:blur(18px);
    border-top:1px solid var(--line);
    transform:translateY(-8px);
    opacity:0;
    visibility:hidden;
    transition:opacity .25s ease,transform .25s ease,visibility .25s;
    overflow-y:auto;
  }
  .nav-menu.is-open{
    opacity:1;
    visibility:visible;
    transform:translateY(0);
  }
  .nav-link{
    width:100%;
    font-size:19px;
    padding:20px 0;
    border-bottom:1px solid var(--line-soft);
    color:var(--text);
  }
  .nav-link::after{display:none;}
  .nav-link.is-active{color:var(--amber);}
  .nav-cta{margin-top:26px;width:100%;min-height:48px;font-size:15px;}
}
@media screen and (max-width:768px){
  .container{padding:0 18px;}
  .section{padding:62px 0;}
  .hero-title{font-size:32px;}
  .hero-sub{font-size:16px;}
  .section-title{font-size:24px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:32px;}
  .section-head--center{align-items:center;}
  .news-grid .cell{margin-bottom:18px;}
  .consult-info h2{font-size:26px;}
  .form-card{padding:24px;}
  .cta-band{padding:40px 24px;}
  .cta-band h2{font-size:24px;}
  .spec-row{grid-template-columns:1fr 1fr;row-gap:6px;padding:14px 0;}
  .spec-row.head{display:none;}
  .spec-row > div:nth-child(1){grid-column:1 / -1;color:var(--text);font-size:13px;margin-bottom:4px;}
  .plan-card{padding:26px 22px;}
  .hero-figure{aspect-ratio:16/11;}
  .trust-item{padding:0 18px;min-width:110px;}
  .trust-num{font-size:24px;}
  .ladder-item p{min-height:auto;}
}
@media screen and (max-width:520px){
  .hero-title{font-size:28px;}
  .hero-actions{width:100%;}
  .hero-actions .btn{width:100%;}
  .trust-row{gap:18px 0;}
  .trust-item{width:50%;padding:0 0 0 16px;border-left:1px solid var(--line);min-width:0;}
  .trust-item:nth-child(odd){padding-left:0;border-left:0;}
  .stats-band{grid-template-columns:1fr;}
  .stat-cell{border-left:0;}
  .stat-cell:nth-child(n+2){border-top:1px solid var(--line-soft);}
  .clock span{min-width:42px;height:42px;font-size:17px;}
  .status-right{gap:18px;}
  .status-right .btn{width:100%;}
  .faq-q{font-size:15px;padding:18px 18px;}
  .faq-a p{padding:0 18px 18px;font-size:14px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .cta-actions .btn{width:100%;}
}
@media (prefers-reduced-motion: reduce){
  *{transition:none !important;animation:none !important;}
  html{scroll-behavior:auto !important;}
}

/* roulang page: article */
:root{
  --bg:#0A0E18;
  --bg-2:#0D1322;
  --bg-3:#070A12;
  --card:rgba(255,255,255,.045);
  --card-hover:rgba(255,255,255,.07);
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.18);
  --amber:#F0A868;
  --amber-light:#FFC98A;
  --amber-deep:#C9854B;
  --cyan:#6FD3E8;
  --text:#E9EEF6;
  --text-2:#9BA8BE;
  --text-3:#6B7789;
  --radius-lg:18px;
  --radius:16px;
  --radius-sm:10px;
  --shadow:0 18px 48px rgba(0,0,0,.45);
  --shadow-soft:0 10px 30px rgba(0,0,0,.30);
  --ease:.25s ease-out;
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Inter","Manrope",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:
    radial-gradient(680px 460px at 82% -6%, rgba(240,168,104,.11), transparent 68%),
    radial-gradient(620px 420px at 4% 34%, rgba(111,211,232,.075), transparent 70%),
    radial-gradient(560px 380px at 96% 82%, rgba(240,168,104,.055), transparent 72%);
}
img{max-width:100%;height:auto;display:block;border:0;}
a{color:var(--cyan);text-decoration:none;transition:color var(--ease);}
a:hover{color:var(--amber-light);}
p{margin:0 0 18px;}
h1,h2,h3,h4{margin:0;font-weight:600;color:var(--text);letter-spacing:-.01em;}
ul,ol{margin:0 0 18px;padding-left:1.25em;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--amber);outline-offset:3px;border-radius:4px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;position:relative;z-index:1;}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(10,14,24,.62);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:background var(--ease),border-color var(--ease);
}
.site-header.scrolled{
  background:rgba(7,10,18,.90);
  border-bottom:1px solid var(--line);
}
.nav-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  min-height:76px;
}
.brand{
  display:inline-flex;
  flex-direction:column;
  line-height:1.15;
  text-decoration:none;
  flex:0 0 auto;
}
.brand-main{
  font-size:20px;
  font-weight:700;
  letter-spacing:.02em;
  color:var(--text);
}
.brand-sub{
  font-size:11px;
  letter-spacing:.34em;
  color:var(--amber);
  margin-top:3px;
}
.brand:hover .brand-main{color:var(--amber-light);}
.nav-menu{
  display:flex;
  align-items:center;
  gap:30px;
}
.nav-link{
  position:relative;
  font-size:15px;
  color:var(--text-2);
  padding:6px 0;
  transition:color var(--ease);
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-2px;
  height:2px;
  background:var(--amber);
  border-radius:2px;
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform var(--ease);
}
.nav-link:hover{color:var(--text);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--amber-light);}
.nav-link.is-active::after{transform:scaleX(1);}
.nav-cta{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:40px;
  padding:0 20px;
  font-size:14px;
  font-weight:600;
  color:var(--amber-light);
  border:1px solid rgba(240,168,104,.48);
  border-radius:var(--radius-sm);
  transition:background var(--ease),border-color var(--ease),transform var(--ease);
}
.nav-cta:hover{
  background:rgba(240,168,104,.10);
  border-color:var(--amber);
  transform:translateY(-1px);
  color:var(--amber-light);
}
.nav-toggle{
  display:none;
  flex-direction:column;
  justify-content:center;
  gap:5px;
  width:44px;height:44px;
  padding:0 10px;
  background:transparent;
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  cursor:pointer;
}
.nav-toggle span{
  display:block;
  height:2px;
  width:100%;
  background:var(--text);
  border-radius:2px;
  transition:transform var(--ease),opacity var(--ease);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:46px;
  padding:0 24px;
  font-size:15px;
  font-weight:600;
  border-radius:var(--radius-sm);
  border:1px solid transparent;
  cursor:pointer;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),border-color var(--ease),color var(--ease);
}
.btn-primary{
  background:linear-gradient(135deg,var(--amber-light),var(--amber) 55%,var(--amber-deep));
  color:#1A1206;
  box-shadow:0 8px 28px rgba(240,168,104,.28);
}
.btn-primary:hover{
  transform:translateY(-2px);
  box-shadow:0 12px 34px rgba(240,168,104,.40);
  color:#1A1206;
}
.btn-ghost{
  background:transparent;
  border-color:var(--line-strong);
  color:var(--text);
}
.btn-ghost:hover{
  border-color:var(--amber);
  background:rgba(240,168,104,.06);
  color:var(--amber-light);
}
.tag{
  display:inline-flex;
  align-items:center;
  min-height:26px;
  padding:0 12px;
  font-size:12px;
  letter-spacing:.06em;
  color:var(--cyan);
  border:1px solid rgba(111,211,232,.40);
  border-radius:999px;
  background:rgba(111,211,232,.05);
}

/* ---------- Breadcrumb ---------- */
.breadcrumb-wrap{
  padding:28px 0 0;
}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-3);
  letter-spacing:.02em;
}
.breadcrumb a{color:var(--text-2);}
.breadcrumb a:hover{color:var(--amber-light);}
.breadcrumb .sep{color:var(--text-3);opacity:.65;}
.breadcrumb .current{
  color:var(--text-2);
  max-width:100%;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}

/* ---------- Article head ---------- */
.article-head{
  padding:34px 0 0;
}
.article-head .tag{margin-bottom:18px;}
.article-title{
  font-size:42px;
  line-height:1.25;
  font-weight:700;
  letter-spacing:-.01em;
  margin:0 0 20px;
  max-width:900px;
}
.article-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:14px;
  font-size:13px;
  color:var(--text-3);
  letter-spacing:.02em;
}
.article-meta .dot{
  width:1px;height:12px;
  background:var(--line-strong);
}
.article-meta strong{color:var(--text-2);font-weight:500;}

/* ---------- Cover ---------- */
.article-cover{
  margin:34px 0 0;
  border-radius:var(--radius-lg);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  position:relative;
  aspect-ratio:16/9;
  background:var(--bg-2);
}
.article-cover img{
  width:100%;height:100%;
  object-fit:cover;
}
.article-cover::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(10,14,24,0) 45%,rgba(10,14,24,.55));
  pointer-events:none;
}

/* ---------- Layout ---------- */
.article-main{
  padding:56px 0 96px;
}
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 240px;
  gap:56px;
  align-items:start;
}
.article-content-col{min-width:0;}

/* ---------- Body typography ---------- */
.article-body{
  max-width:760px;
  font-size:16px;
  line-height:1.9;
  color:var(--text);
}
.article-body p{
  margin:0 0 22px;
  color:#DCE4F0;
}
.article-body h2{
  position:relative;
  font-size:34px;
  line-height:1.32;
  font-weight:600;
  margin:52px 0 20px;
  padding-left:16px;
  scroll-margin-top:96px;
}
.article-body h2::before{
  content:"";
  position:absolute;
  left:0;top:.22em;bottom:.18em;
  width:3px;
  border-radius:3px;
  background:linear-gradient(180deg,var(--amber-light),var(--amber-deep));
}
.article-body h3{
  font-size:20px;
  font-weight:600;
  margin:34px 0 14px;
  color:var(--amber-light);
  scroll-margin-top:96px;
}
.article-body h4{
  font-size:17px;
  font-weight:600;
  margin:26px 0 12px;
}
.article-body ul,.article-body ol{
  margin:0 0 22px;
  padding-left:1.35em;
}
.article-body li{
  margin-bottom:10px;
  color:#DCE4F0;
}
.article-body li::marker{color:var(--amber);}
.article-body blockquote{
  margin:26px 0;
  padding:18px 22px;
  border-left:3px solid var(--amber);
  background:rgba(255,255,255,.06);
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  color:var(--text-2);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body a{
  color:var(--cyan);
  border-bottom:1px solid rgba(111,211,232,.35);
  transition:color var(--ease),border-color var(--ease);
}
.article-body a:hover{color:var(--amber-light);border-color:rgba(240,168,104,.6);}
.article-body img{
  border-radius:var(--radius);
  margin:26px auto;
  border:1px solid var(--line);
}
.article-body figure{margin:26px 0;}
.article-body figcaption{
  font-size:13px;
  color:var(--text-3);
  text-align:center;
  margin-top:10px;
}
.article-body hr{
  border:0;
  border-top:1px solid var(--line);
  margin:40px 0;
}
.article-body code{
  font-size:14px;
  padding:2px 6px;
  border-radius:6px;
  background:rgba(255,255,255,.08);
  color:var(--amber-light);
}
.article-body strong{color:#FFFFFF;font-weight:600;}

/* ---------- Empty state ---------- */
.empty-state{
  max-width:760px;
  padding:52px 32px;
  text-align:center;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:var(--card);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.empty-state .empty-title{
  font-size:22px;
  font-weight:600;
  margin-bottom:10px;
  color:var(--text);
}
.empty-state .empty-desc{
  font-size:14px;
  color:var(--text-2);
  margin-bottom:26px;
}

/* ---------- TOC ---------- */
.toc{
  position:sticky;
  top:100px;
  padding:22px 20px;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:var(--card);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow-soft);
}
.toc h4{
  font-size:13px;
  font-weight:500;
  letter-spacing:.16em;
  color:var(--text-3);
  margin:0 0 14px;
}
.toc ul{list-style:none;margin:0;padding:0;}
.toc li{margin:0 0 6px;}
.toc a{
  display:block;
  font-size:13px;
  line-height:1.6;
  color:var(--text-2);
  padding:6px 10px;
  border-left:1px solid var(--line);
  transition:color var(--ease),border-color var(--ease),background var(--ease);
}
.toc a:hover{color:var(--text);border-left-color:var(--line-strong);background:rgba(255,255,255,.03);}
.toc a.is-current{color:var(--amber-light);border-left-color:var(--amber);background:rgba(240,168,104,.07);}

/* ---------- Post actions ---------- */
.post-actions{
  max-width:760px;
  margin-top:48px;
  padding-top:26px;
  border-top:1px solid var(--line);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:16px;
}
.back-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:var(--text-2);
}
.back-link:hover{color:var(--amber-light);}
.back-link .arrow{color:var(--amber);}

/* ---------- Related ---------- */
.section{padding:0 0 96px;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:32px;
}
.section-head h2{
  font-size:30px;
  line-height:1.3;
  font-weight:600;
}
.section-head p{
  margin:8px 0 0;
  font-size:14px;
  color:var(--text-2);
}
.text-link{
  font-size:14px;
  color:var(--amber);
  white-space:nowrap;
}
.text-link:hover{color:var(--amber-light);}
.card-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.post-card{
  display:flex;
  flex-direction:column;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:var(--shadow-soft);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease),background var(--ease);
}
.post-card:hover{
  transform:translateY(-4px);
  border-color:rgba(240,168,104,.45);
  box-shadow:var(--shadow);
  background:var(--card-hover);
}
.post-thumb{
  aspect-ratio:16/9;
  overflow:hidden;
  background:var(--bg-2);
}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out;}
.post-card:hover .post-thumb img{transform:scale(1.03);}
.post-body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1;}
.post-meta{
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:12px;
  font-size:12px;
  color:var(--text-3);
}
.post-meta .tag{min-height:22px;padding:0 10px;font-size:11px;}
.post-title{
  font-size:18px;
  line-height:1.5;
  font-weight:600;
  margin:0 0 10px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.post-card:hover .post-title{color:var(--amber-light);}
.post-desc{
  font-size:14px;
  line-height:1.75;
  color:var(--text-2);
  margin:0 0 18px;
  display:-webkit-box;
  -webkit-line-clamp:3;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.post-more{
  margin-top:auto;
  font-size:14px;
  color:var(--amber);
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.post-card:hover .post-more{color:var(--amber-light);}

/* ---------- Consult band ---------- */
.consult-band{
  padding:48px 44px;
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  background:linear-gradient(120deg,rgba(240,168,104,.09),rgba(255,255,255,.03) 42%,rgba(111,211,232,.06));
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow);
  display:grid;
  grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);
  gap:44px;
  align-items:center;
  margin-bottom:96px;
}
.consult-band h2{font-size:30px;line-height:1.32;margin-bottom:14px;}
.consult-band p{font-size:15px;color:var(--text-2);margin-bottom:0;}
.consult-points{list-style:none;margin:18px 0 0;padding:0;}
.consult-points li{
  position:relative;
  padding-left:20px;
  font-size:14px;
  color:var(--text-2);
  margin-bottom:8px;
}
.consult-points li::before{
  content:"";
  position:absolute;
  left:0;top:.68em;
  width:7px;height:7px;
  border-radius:50%;
  background:var(--amber);
  box-shadow:0 0 0 4px rgba(240,168,104,.12);
}
.consult-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  justify-content:flex-end;
}

/* ---------- Footer ---------- */
.site-footer{
  border-top:1px solid var(--line);
  padding:72px 0 0;
  background:var(--bg-3);
  position:relative;
  z-index:1;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1fr;
  gap:40px;
}
.footer-brand p{
  font-size:14px;
  line-height:1.8;
  color:var(--text-2);
  margin:18px 0 0;
  max-width:290px;
}
.footer-col h4{
  font-size:13px;
  letter-spacing:.16em;
  color:var(--text-3);
  font-weight:500;
  margin:0 0 18px;
}
.footer-col ul{list-style:none;margin:0;padding:0;}
.footer-col li{margin-bottom:12px;}
.footer-col a,.footer-col span{
  font-size:15px;
  color:var(--text-2);
  line-height:1.6;
}
.footer-col a:hover{color:var(--amber-light);}
.footer-bottom{
  margin-top:56px;
  padding:22px 0 26px;
  border-top:1px solid var(--line);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  font-size:13px;
  color:var(--text-3);
  letter-spacing:.02em;
}

/* ---------- Responsive ---------- */
@media screen and (max-width:1023px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:0;}
  .toc{display:none;}
  .article-title{font-size:34px;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .consult-band{grid-template-columns:minmax(0,1fr);gap:28px;padding:40px 32px;}
  .consult-actions{justify-content:flex-start;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:36px;}
}
@media screen and (max-width:768px){
  .container{padding:0 18px;}
  .nav-toggle{display:flex;}
  .nav-menu{
    position:fixed;
    inset:76px 0 0 0;
    flex-direction:column;
    align-items:flex-start;
    justify-content:flex-start;
    gap:20px;
    padding:38px 24px 48px;
    background:rgba(7,10,18,.97);
    backdrop-filter:blur(18px);
    -webkit-backdrop-filter:blur(18px);
    border-top:1px solid var(--line);
    transform:translateX(100%);
    opacity:0;
    visibility:hidden;
    transition:transform var(--ease),opacity var(--ease),visibility var(--ease);
    overflow-y:auto;
  }
  .nav-menu.is-open{transform:translateX(0);opacity:1;visibility:visible;}
  .nav-link{font-size:22px;font-weight:600;color:var(--text);width:100%;padding:6px 0;}
  .nav-link::after{display:none;}
  .nav-link.is-active{color:var(--amber-light);}
  .nav-cta{width:100%;min-height:48px;font-size:16px;margin-top:8px;}
  .article-head{padding-top:24px;}
  .article-title{font-size:28px;line-height:1.35;}
  .article-body{font-size:15px;line-height:1.85;}
  .article-body h2{font-size:24px;margin:40px 0 16px;}
  .article-body h3{font-size:18px;}
  .article-main{padding:40px 0 64px;}
  .section{padding-bottom:64px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;}
  .section-head h2{font-size:24px;}
  .card-grid{grid-template-columns:minmax(0,1fr);}
  .consult-band{padding:32px 22px;margin-bottom:64px;}
  .consult-band h2{font-size:24px;}
  .post-actions{flex-direction:column;align-items:flex-start;}
  .site-footer{padding-top:56px;}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:32px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;margin-top:40px;}
}
@media screen and (max-width:520px){
  .article-title{font-size:25px;}
  .article-meta{gap:10px;font-size:12px;}
  .breadcrumb{font-size:12px;}
  .empty-state{padding:36px 20px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important;scroll-behavior:auto !important;}
}

/* roulang page: category1 */
:root{
  --bg:#0A0E18;
  --bg-2:#0D1322;
  --bg-3:#070A12;
  --card:rgba(255,255,255,0.045);
  --stroke:rgba(255,255,255,0.09);
  --amber:#F0A868;
  --amber-light:#FFC98A;
  --amber-deep:#C9854B;
  --cyan:#6FD3E8;
  --text:#E9EEF6;
  --text-2:#9BA8BE;
  --text-3:#6B7789;
  --line:rgba(255,255,255,0.10);
  --radius:16px;
  --radius-sm:10px;
  --shadow:0 18px 48px rgba(0,0,0,.45);
  --section-gap:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background-color:var(--bg);
  background-image:
    radial-gradient(circle at 14% 6%, rgba(240,168,104,.07), transparent 42%),
    radial-gradient(circle at 86% 2%, rgba(111,211,232,.055), transparent 40%);
  background-repeat:no-repeat;
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Inter","Manrope",Helvetica,Arial,sans-serif;
  font-size:16px;
  line-height:1.8;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
h1,h2,h3,h4,h5,h6{
  font-family:inherit;
  color:var(--text);
  font-weight:600;
  margin:0;
  line-height:1.3;
}
p{margin:0 0 18px;}
p:last-child{margin-bottom:0;}
img{max-width:100%;display:block;border:0;}
a{color:var(--cyan);text-decoration:none;transition:color .25s ease;}
a:hover{color:var(--amber-light);}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
::selection{background:rgba(240,168,104,.3);color:#fff;}
:focus-visible{outline:2px solid var(--amber);outline-offset:3px;}

/* Foundation 覆盖 */
.button,button.button{border-radius:var(--radius-sm);}
.button:focus{outline:none;}
.grid-x{margin-left:-.9375rem;margin-right:-.9375rem;}
.grid-padding-x{margin-left:0;margin-right:0;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}

/* ============ 页头导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  background:rgba(10,14,24,.68);
  border-bottom:1px solid transparent;
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  transition:background .25s ease,border-color .25s ease;
}
.site-header.is-scrolled{
  background:rgba(10,14,24,.92);
  border-bottom-color:var(--line);
}
.nav-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  min-height:76px;
}
.brand{
  display:inline-flex;
  flex-direction:column;
  line-height:1.05;
  letter-spacing:.02em;
}
.brand-main{
  font-size:19px;
  font-weight:700;
  color:var(--text);
  letter-spacing:.04em;
}
.brand-sub{
  margin-top:5px;
  font-size:11px;
  font-weight:400;
  letter-spacing:.34em;
  color:var(--amber);
}
.brand:hover .brand-main{color:var(--amber-light);}
.nav-menu{
  display:flex;
  align-items:center;
  gap:0;
}
.nav-link{
  position:relative;
  display:inline-block;
  padding:10px 18px;
  font-size:15px;
  color:var(--text-2);
  transition:color .25s ease;
}
.nav-link:hover,.nav-link:focus-visible{color:var(--text);}
.nav-link.is-active{color:var(--text);}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:18px;
  right:18px;
  bottom:2px;
  height:2px;
  border-radius:2px;
  background:var(--amber);
}
.nav-link + .nav-link::before{
  content:"";
  position:absolute;
  left:0;
  top:50%;
  transform:translateY(-50%);
  width:1px;
  height:14px;
  background:var(--line);
}
.nav-cta{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  margin-left:18px;
  padding:9px 20px;
  min-height:44px;
  font-size:14px;
  color:var(--amber);
  border:1px solid rgba(240,168,104,.42);
  border-radius:var(--radius-sm);
  transition:background .25s ease,border-color .25s ease,color .25s ease;
}
.nav-cta:hover{
  background:rgba(240,168,104,.1);
  border-color:var(--amber);
  color:var(--amber-light);
}
.nav-toggle{
  display:none;
  flex-direction:column;
  justify-content:center;
  gap:5px;
  width:44px;
  height:44px;
  padding:0;
  background:transparent;
  border:1px solid var(--stroke);
  border-radius:var(--radius-sm);
  cursor:pointer;
}
.nav-toggle span{
  display:block;
  width:18px;
  height:1.5px;
  margin:0 auto;
  background:var(--text);
  transition:transform .25s ease,opacity .25s ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6.5px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6.5px) rotate(-45deg);}

/* ============ 通用板块 ============ */
.section{padding:var(--section-gap) 0;}
.section--tight{padding:72px 0;}
.section--alt{background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:720px;margin-bottom:44px;}
.section-eyebrow{
  display:inline-block;
  margin-bottom:16px;
  padding:5px 14px;
  font-size:12px;
  letter-spacing:.16em;
  color:var(--cyan);
  border:1px solid rgba(111,211,232,.28);
  border-radius:999px;
  background:rgba(111,211,232,.06);
}
.section-title{
  font-size:34px;
  font-weight:600;
  letter-spacing:-.01em;
  line-height:1.32;
  margin-bottom:14px;
}
.section-desc{
  font-size:16px;
  color:var(--text-2);
  margin:0;
}
.divider{height:1px;background:var(--line);border:0;margin:0;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:13px 28px;
  font-size:15px;
  font-weight:600;
  letter-spacing:.01em;
  border:1px solid transparent;
  border-radius:var(--radius-sm);
  cursor:pointer;
  transition:transform .25s ease,box-shadow .25s ease,background .25s ease,border-color .25s ease,color .25s ease;
}
.btn-primary{
  background:linear-gradient(135deg,var(--amber-light),var(--amber));
  color:#1A1206;
  box-shadow:0 8px 28px rgba(240,168,104,.28);
}
.btn-primary:hover{
  color:#1A1206;
  transform:translateY(-2px);
  box-shadow:0 12px 36px rgba(240,168,104,.4);
}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 18px rgba(240,168,104,.28);}
.btn-ghost{
  background:transparent;
  border-color:var(--stroke);
  color:var(--text);
}
.btn-ghost:hover{
  color:var(--text);
  border-color:var(--amber);
  background:rgba(240,168,104,.06);
  transform:translateY(-2px);
}
.btn:focus-visible{outline:2px solid var(--amber);outline-offset:3px;}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  color:var(--cyan);
}
.text-link:hover{color:var(--amber-light);}

/* ============ 分类页 Hero ============ */
.hero-cat{
  position:relative;
  overflow:hidden;
  padding:88px 0 76px;
  border-bottom:1px solid var(--line);
}
.hero-cat::before{
  content:"";
  position:absolute;
  left:-200px;
  top:-280px;
  width:620px;
  height:620px;
  background:radial-gradient(circle,rgba(240,168,104,.16),transparent 66%);
  pointer-events:none;
}
.hero-cat::after{
  content:"";
  position:absolute;
  right:-160px;
  bottom:-260px;
  width:520px;
  height:520px;
  background:radial-gradient(circle,rgba(111,211,232,.12),transparent 68%);
  pointer-events:none;
}
.hero-cat .container{position:relative;z-index:1;}
.hero-grid{align-items:center;}
.eyebrow{
  display:inline-block;
  margin-bottom:22px;
  padding:5px 14px;
  font-size:12px;
  letter-spacing:.16em;
  color:var(--amber);
  border:1px solid rgba(240,168,104,.3);
  border-radius:999px;
  background:rgba(240,168,104,.07);
}
.hero-title{
  font-size:48px;
  font-weight:700;
  line-height:1.24;
  letter-spacing:-.01em;
  margin-bottom:20px;
}
.hero-title-sub{
  display:block;
  font-size:inherit;
  color:var(--amber);
}
.hero-lead{
  max-width:540px;
  font-size:17px;
  line-height:1.85;
  color:var(--text-2);
  margin-bottom:32px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
.hero-meta{
  display:flex;
  flex-wrap:wrap;
  margin-top:42px;
}
.hero-meta li{
  display:flex;
  flex-direction:column;
  padding:0 26px;
  border-left:1px solid var(--line);
}
.hero-meta li:first-child{padding-left:0;border-left:0;}
.hero-meta strong{
  font-family:"Inter","Manrope","PingFang SC",sans-serif;
  font-size:28px;
  font-weight:700;
  line-height:1.2;
  color:var(--amber);
}
.hero-meta span{
  margin-top:4px;
  font-size:13px;
  letter-spacing:.02em;
  color:var(--text-3);
}
.hero-figure{
  position:relative;
  margin:0;
  overflow:hidden;
  border-radius:18px;
  border:1px solid var(--stroke);
  box-shadow:var(--shadow);
  aspect-ratio:16 / 10;
}
.hero-figure img{
  width:100%;
  height:100%;
  object-fit:cover;
}
.hero-figure::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.055) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.055) 1px,transparent 1px);
  background-size:48px 48px;
  opacity:.55;
  pointer-events:none;
}
.hero-figure::after{
  content:"";
  position:absolute;
  inset:0;
  background:
    linear-gradient(160deg,rgba(240,168,104,.18),transparent 55%),
    linear-gradient(0deg,rgba(7,10,18,.55),transparent 62%);
  pointer-events:none;
}

/* ============ 导语 ============ */
.intro-grid{gap:0;}
.intro-title{
  font-size:26px;
  font-weight:600;
  line-height:1.4;
  margin-bottom:0;
}
.intro-body p{
  font-size:16px;
  line-height:1.9;
  color:var(--text-2);
}

/* ============ 要点卡片 ============ */
.point-card{
  height:100%;
  padding:28px;
  border-radius:var(--radius);
  background:var(--card);
  border:1px solid var(--stroke);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  transition:transform .25s ease-out,border-color .25s ease-out,box-shadow .25s ease-out;
}
.point-card:hover{
  transform:translateY(-4px);
  border-color:rgba(240,168,104,.45);
  box-shadow:var(--shadow);
}
.point-num{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:38px;
  height:38px;
  margin-bottom:18px;
  font-family:"Inter","Manrope",sans-serif;
  font-size:14px;
  font-weight:600;
  letter-spacing:.06em;
  color:var(--amber);
  background:rgba(240,168,104,.12);
  border:1px solid rgba(240,168,104,.32);
  border-radius:var(--radius-sm);
}
.point-card h3{
  font-size:20px;
  font-weight:600;
  margin-bottom:10px;
}
.point-card p{
  font-size:15px;
  line-height:1.8;
  color:var(--text-2);
  margin:0;
}

/* ============ 对照区 ============ */
.compare-wrap{padding-top:8px;}
.compare-card{
  height:100%;
  padding:32px;
  border-radius:var(--radius);
  background:var(--card);
  border:1px solid var(--stroke);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.compare-card h3{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:20px;
  font-weight:600;
  margin-bottom:6px;
}
.dot{
  flex:none;
  width:8px;
  height:8px;
  border-radius:50%;
  background:var(--amber);
}
.dot--cyan{background:var(--cyan);}
.compare-sub{
  font-size:14px;
  color:var(--text-3);
  margin-bottom:22px;
}
.compare-list li{
  display:flex;
  gap:12px;
  padding:14px 0;
  font-size:15px;
  line-height:1.75;
  color:var(--text-2);
  border-bottom:1px solid var(--line);
}
.compare-list li:last-child{border-bottom:0;padding-bottom:0;}
.li-mark{
  flex:none;
  width:6px;
  height:6px;
  margin-top:11px;
  border-radius:50%;
  background:var(--amber);
}
.li-mark--muted{background:var(--text-3);}

/* ============ CTA 条带 ============ */
.cta-band{
  position:relative;
  overflow:hidden;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  padding:44px 48px;
  border-radius:20px;
  background:
    radial-gradient(circle at 12% 20%, rgba(240,168,104,.16), transparent 55%),
    radial-gradient(circle at 88% 80%, rgba(111,211,232,.14), transparent 55%),
    rgba(255,255,255,.035);
  border:1px solid rgba(240,168,104,.26);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.cta-copy{max-width:600px;}
.cta-title{
  font-size:26px;
  font-weight:600;
  line-height:1.4;
  margin-bottom:10px;
}
.cta-desc{
  font-size:15px;
  line-height:1.8;
  color:var(--text-2);
  margin:0;
}
.cta-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
}

/* ============ 表单 ============ */
.consult-points{margin-top:26px;}
.consult-points li{
  position:relative;
  padding-left:20px;
  margin-bottom:12px;
  font-size:15px;
  line-height:1.8;
  color:var(--text-2);
}
.consult-points li::before{
  content:"";
  position:absolute;
  left:0;
  top:12px;
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--amber);
  opacity:.8;
}
.form-card{
  padding:32px;
  border-radius:var(--radius);
  background:var(--card);
  border:1px solid var(--stroke);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.field{margin-bottom:20px;}
.field label{
  display:block;
  margin-bottom:8px;
  font-size:13px;
  letter-spacing:.02em;
  color:var(--text-2);
}
.field input,
.field select,
.field textarea{
  width:100%;
  padding:12px 14px;
  font-family:inherit;
  font-size:15px;
  color:var(--text);
  background:rgba(255,255,255,.04);
  border:1px solid var(--stroke);
  border-radius:var(--radius-sm);
  transition:border-color .25s ease,box-shadow .25s ease,background .25s ease;
}
.field input::placeholder,
.field textarea::placeholder{color:var(--text-3);}
.field input:focus,
.field select:focus,
.field textarea:focus{
  outline:none;
  border-color:var(--amber);
  background:rgba(255,255,255,.06);
  box-shadow:0 0 0 3px rgba(240,168,104,.18);
}
.field textarea{min-height:112px;resize:vertical;line-height:1.75;}
.form-submit{width:100%;}
.form-note{
  margin-top:14px;
  font-size:13px;
  line-height:1.7;
  color:var(--text-3);
}
.form-done{
  padding:22px;
  font-size:15px;
  line-height:1.8;
  color:var(--text);
  background:rgba(111,211,232,.1);
  border:1px solid rgba(111,211,232,.32);
  border-radius:var(--radius-sm);
}
.form-error{
  margin-bottom:18px;
  padding:14px 16px;
  font-size:14px;
  color:var(--amber-light);
  background:rgba(240,168,104,.1);
  border:1px solid rgba(240,168,104,.34);
  border-radius:var(--radius-sm);
}

/* ============ FAQ ============ */
.faq-list{max-width:900px;}
.faq-item{
  margin-bottom:14px;
  border-radius:var(--radius);
  background:var(--card);
  border:1px solid var(--stroke);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  overflow:hidden;
  transition:border-color .25s ease;
}
.faq-item.is-open{border-color:rgba(240,168,104,.4);}
.faq-q{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  width:100%;
  padding:22px 26px;
  font-size:16px;
  font-weight:600;
  text-align:left;
  color:var(--text);
  background:transparent;
  border:0;
  cursor:pointer;
  min-height:44px;
}
.faq-q:hover{color:var(--amber-light);}
.faq-icon{
  position:relative;
  flex:none;
  width:16px;
  height:16px;
}
.faq-icon::before,
.faq-icon::after{
  content:"";
  position:absolute;
  left:50%;
  top:50%;
  background:var(--amber);
  border-radius:2px;
  transition:transform .3s ease,opacity .3s ease;
}
.faq-icon::before{width:16px;height:1.5px;transform:translate(-50%,-50%);}
.faq-icon::after{width:1.5px;height:16px;transform:translate(-50%,-50%);}
.faq-item.is-open .faq-icon::after{transform:translate(-50%,-50%) scaleY(0);opacity:0;}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .3s ease;
}
.faq-item.is-open .faq-a{max-height:360px;}
.faq-a p{
  padding:0 26px 24px;
  font-size:15px;
  line-height:1.9;
  color:var(--text-2);
  margin:0;
}

/* ============ 页脚 ============ */
.site-footer{
  padding:72px 0 0;
  background:var(--bg-3);
  border-top:1px solid var(--line);
}
.footer-grid{padding-bottom:48px;}
.footer-brand p{
  margin-top:18px;
  font-size:14px;
  line-height:1.85;
  color:var(--text-3);
  max-width:280px;
}
.footer-col h4{
  margin-bottom:18px;
  font-size:14px;
  font-weight:600;
  letter-spacing:.1em;
  color:var(--text-3);
}
.footer-col ul li{margin-bottom:12px;}
.footer-col ul li a,
.footer-col ul li span{
  font-size:15px;
  color:var(--text-2);
  transition:color .25s ease;
}
.footer-col ul li a:hover{color:var(--amber);}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:22px 0;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--text-3);
  letter-spacing:.02em;
}

/* ============ 响应式 ============ */
@media screen and (max-width:1023px){
  .nav-toggle{display:flex;}
  .nav-menu{
    position:fixed;
    top:0;
    right:0;
    bottom:0;
    left:0;
    z-index:90;
    flex-direction:column;
    justify-content:center;
    gap:6px;
    padding:96px 28px 48px;
    background:rgba(7,10,18,.97);
    backdrop-filter:blur(18px);
    -webkit-backdrop-filter:blur(18px);
    transform:translateX(100%);
    transition:transform .3s ease;
  }
  .nav-menu.is-open{transform:translateX(0);}
  .nav-link{
    font-size:22px;
    padding:14px 0;
    text-align:center;
  }
  .nav-link + .nav-link::before{display:none;}
  .nav-link.is-active::after{
    left:50%;
    right:auto;
    bottom:6px;
    width:36px;
    transform:translateX(-50%);
  }
  .nav-cta{
    margin:20px auto 0;
    padding:12px 32px;
    font-size:16px;
  }
  .hero-cat{padding:72px 0 64px;}
  .hero-title{font-size:38px;}
  .hero-lead{font-size:16px;}
  .hero-figure{margin-top:44px;}
  .section{padding:72px 0;}
  .section--tight{padding:56px 0;}
  .section-title{font-size:28px;}
  .intro-title{margin-bottom:18px;}
  .compare-card + .compare-card{margin-top:20px;}
  .cta-band{padding:36px 32px;}
  .footer-col{margin-top:32px;}
  .footer-brand{margin-top:0;}
}

@media screen and (max-width:639px){
  .container{padding:0 18px;}
  .nav-inner{min-height:68px;}
  .hero-cat{padding:56px 0 52px;}
  .hero-title{font-size:32px;}
  .hero-lead{font-size:15.5px;margin-bottom:26px;}
  .hero-actions{width:100%;flex-direction:column;}
  .hero-actions .btn{width:100%;}
  .hero-meta{margin-top:32px;}
  .hero-meta li{padding:0 16px;}
  .hero-meta strong{font-size:22px;}
  .hero-meta span{font-size:12px;}
  .section{padding:56px 0;}
  .section--tight{padding:44px 0;}
  .section-head{margin-bottom:32px;}
  .section-title{font-size:24px;}
  .section-desc{font-size:15px;}
  .intro-title{font-size:21px;}
  .point-card{padding:20px;}
  .point-card h3{font-size:18px;}
  .compare-card{padding:22px;}
  .compare-card h3{font-size:18px;}
  .cta-band{padding:28px 20px;text-align:center;justify-content:center;}
  .cta-title{font-size:21px;}
  .cta-actions{width:100%;flex-direction:column;}
  .cta-actions .btn{width:100%;}
  .form-card{padding:22px;}
  .faq-q{padding:18px 20px;font-size:15px;}
  .faq-a p{padding:0 20px 20px;font-size:14.5px;}
  .site-footer{padding-top:56px;}
  .footer-bottom{justify-content:flex-start;font-size:12.5px;}
}

@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
}

/* roulang page: category2 */
:root{
  --bg:#0A0E18;
  --bg-soft:#0D1322;
  --bg-deep:#070A12;
  --card:rgba(255,255,255,.045);
  --card-strong:rgba(255,255,255,.07);
  --line:rgba(255,255,255,.10);
  --line-soft:rgba(255,255,255,.06);
  --amber:#F0A868;
  --amber-bright:#FFC98A;
  --amber-deep:#C9854B;
  --cyan:#6FD3E8;
  --text:#E9EEF6;
  --text-2:#9BA8BE;
  --text-3:#6B7789;
  --radius:16px;
  --radius-lg:20px;
  --radius-sm:10px;
  --pill:999px;
  --shadow:0 18px 48px rgba(0,0,0,.45);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  padding:0;
  background-color:var(--bg);
  background-image:
    radial-gradient(920px 540px at 88% -6%, rgba(240,168,104,.10), transparent 62%),
    radial-gradient(760px 500px at 2% 22%, rgba(111,211,232,.065), transparent 66%);
  background-repeat:no-repeat;
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Inter","Manrope",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
h1,h2,h3,h4,h5,h6{font-family:inherit;color:var(--text);margin:0;font-weight:600;line-height:1.35;letter-spacing:0}
p{margin:0 0 16px}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0}
li{list-style:none}
img{max-width:100%;height:auto;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .25s ease,border-color .25s ease,background-color .25s ease}
button{font-family:inherit}
input,select,textarea{font-family:inherit}
:focus-visible{outline:2px solid var(--amber);outline-offset:3px}
::selection{background:rgba(240,168,104,.28);color:#fff}

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

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(10,14,24,.58);
  border-bottom:1px solid transparent;
  transition:background .25s ease,border-color .25s ease,backdrop-filter .25s ease;
}
.site-header.is-scrolled{
  background:rgba(10,14,24,.88);
  border-bottom-color:var(--line-soft);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.nav-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  min-height:78px;
}
.brand{
  display:flex;
  flex-direction:column;
  gap:4px;
  line-height:1.1;
  flex:0 0 auto;
}
.brand-main{
  font-size:19px;
  font-weight:700;
  letter-spacing:.02em;
  color:var(--text);
}
.brand-sub{
  font-size:11px;
  font-weight:500;
  letter-spacing:.28em;
  color:var(--amber);
}
.nav-menu{
  display:flex;
  align-items:center;
  gap:34px;
}
.nav-link{
  position:relative;
  display:inline-block;
  font-size:15px;
  color:var(--text-2);
  padding:6px 0;
  transition:color .25s ease;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:-2px;
  height:2px;
  border-radius:2px;
  background:var(--amber);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .25s ease,background-color .25s ease;
}
.nav-link + .nav-link::before{
  content:"";
  position:absolute;
  left:-17px;
  top:50%;
  transform:translateY(-50%);
  width:1px;
  height:13px;
  background:var(--line);
}
.nav-link:hover{color:var(--text)}
.nav-link:hover::after{transform:scaleX(1);background:rgba(240,168,104,.55)}
.nav-link.is-active{color:var(--text)}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-cta{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:9px 20px;
  font-size:14px;
  font-weight:600;
  color:var(--amber);
  border:1px solid rgba(240,168,104,.5);
  border-radius:var(--radius-sm);
  transition:background-color .25s ease,color .25s ease,border-color .25s ease,transform .25s ease;
}
.nav-cta:hover{
  background:rgba(240,168,104,.1);
  border-color:rgba(240,168,104,.85);
  color:var(--amber-bright);
  transform:translateY(-1px);
}
.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  padding:0;
  border:0;
  border-radius:var(--radius-sm);
  background:transparent;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
  cursor:pointer;
}
.nav-toggle span{
  display:block;
  width:20px;
  height:2px;
  border-radius:2px;
  background:var(--text);
  transition:transform .25s ease,opacity .25s ease;
}

/* ---------- 首屏 ---------- */
.page-hero{
  position:relative;
  overflow:hidden;
  padding:76px 0 46px;
  background-image:
    linear-gradient(180deg, rgba(10,14,24,.93) 0%, rgba(10,14,24,.99) 78%, rgba(10,14,24,1) 100%),
    url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center right;
  background-repeat:no-repeat;
}
.page-hero::after{
  content:"";
  position:absolute;
  right:-40px;
  top:-60px;
  width:420px;
  height:420px;
  background-image:radial-gradient(rgba(255,255,255,.16) 1px, transparent 1px);
  background-size:32px 32px;
  opacity:.5;
  pointer-events:none;
  -webkit-mask-image:radial-gradient(circle at 60% 40%, #000 0%, transparent 72%);
  mask-image:radial-gradient(circle at 60% 40%, #000 0%, transparent 72%);
}
.hero-inner{position:relative;z-index:2;max-width:840px}
.hero-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  font-size:13px;
  letter-spacing:.04em;
  color:var(--cyan);
  border:1px solid rgba(111,211,232,.42);
  border-radius:var(--pill);
  background:rgba(111,211,232,.06);
}
.hero-tag .dot{
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--cyan);
  box-shadow:0 0 10px rgba(111,211,232,.8);
}
.page-hero h1{
  font-size:42px;
  font-weight:700;
  line-height:1.28;
  letter-spacing:-.01em;
  margin:24px 0 18px;
}
.hero-lede{
  font-size:17px;
  line-height:1.85;
  color:var(--text-2);
  max-width:660px;
  margin-bottom:28px;
}
.hero-meta{
  display:flex;
  flex-wrap:wrap;
  gap:10px 26px;
  padding-top:20px;
  border-top:1px solid var(--line-soft);
  font-size:13px;
  letter-spacing:.02em;
  color:var(--text-3);
}
.hero-meta span{display:inline-flex;align-items:center;gap:8px}
.hero-meta span::before{
  content:"";
  width:5px;
  height:5px;
  border-radius:50%;
  background:rgba(240,168,104,.75);
}

/* ---------- 主体布局 ---------- */
.content-shell{padding:56px 0 96px}
.layout{
  display:grid;
  grid-template-columns:220px minmax(0,1fr);
  gap:56px;
  align-items:start;
}
.subnav{
  position:sticky;
  top:104px;
  padding:22px 18px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.subnav-title{
  font-size:12px;
  font-weight:600;
  letter-spacing:.16em;
  color:var(--text-3);
  margin:0 0 14px 10px;
}
.subnav ul{display:flex;flex-direction:column;gap:4px}
.subnav a{
  display:block;
  padding:9px 12px;
  font-size:14px;
  color:var(--text-2);
  border-left:2px solid transparent;
  border-radius:8px;
  transition:color .22s ease,background-color .22s ease,border-color .22s ease;
}
.subnav a:hover{color:var(--text);background:rgba(255,255,255,.045)}
.subnav a.is-active{
  color:var(--amber);
  border-left-color:var(--amber);
  background:rgba(240,168,104,.09);
}
section[id]{scroll-margin-top:110px}

/* ---------- 图文交替行 ---------- */
.feature-row{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:48px;
  align-items:center;
  padding:46px 0;
  border-bottom:1px solid var(--line-soft);
}
.feature-row:first-child{padding-top:0}
.feature-row.reverse .feature-media{order:2}
.feature-media{
  position:relative;
  aspect-ratio:4 / 3;
  border-radius:var(--radius);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  background:var(--bg-soft);
}
.feature-media img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .45s ease;
}
.feature-media::after{
  content:"";
  position:absolute;
  inset:0;
  background:
    radial-gradient(320px 200px at 82% 8%, rgba(240,168,104,.22), transparent 68%),
    linear-gradient(180deg, rgba(7,10,18,0) 46%, rgba(7,10,18,.55) 100%);
  pointer-events:none;
}
.feature-media:hover img{transform:scale(1.03)}
.feature-body h2{
  font-size:26px;
  font-weight:600;
  line-height:1.45;
  margin:0 0 16px;
}
.feature-body p{
  font-size:15.5px;
  line-height:1.9;
  color:var(--text-2);
  margin:0 0 14px;
}
.checklist{margin-top:20px;display:flex;flex-direction:column;gap:12px}
.checklist li{
  display:flex;
  gap:12px;
  font-size:15px;
  line-height:1.7;
  color:var(--text-2);
}
.checklist li::before{
  content:"";
  flex:0 0 auto;
  width:16px;
  height:16px;
  margin-top:5px;
  border-radius:50%;
  border:1px solid rgba(240,168,104,.6);
  background:radial-gradient(circle at center, var(--amber) 0 3px, transparent 3.6px);
}

/* ---------- 数据条带 ---------- */
.stats-band{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  margin:44px 0 8px;
  padding:30px 0;
  border-top:1px solid var(--line-soft);
  border-bottom:1px solid var(--line-soft);
}
.stat{
  padding:0 26px;
  border-left:1px solid var(--line-soft);
}
.stat:first-child{border-left:0;padding-left:0}
.stat b{
  display:block;
  font-size:32px;
  font-weight:700;
  line-height:1.25;
  color:var(--amber);
  letter-spacing:-.01em;
  margin-bottom:6px;
}
.stat span{
  font-size:13px;
  letter-spacing:.02em;
  color:var(--text-3);
}

/* ---------- FAQ ---------- */
.block-title{
  font-size:26px;
  font-weight:600;
  margin:60px 0 22px;
}
.faq-item{
  border:1px solid var(--line);
  background:var(--card);
  border-radius:var(--radius);
  margin-bottom:14px;
  overflow:hidden;
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  transition:border-color .25s ease,background-color .25s ease;
}
.faq-item:hover{border-color:rgba(255,255,255,.18)}
.faq-item.is-open{border-color:rgba(240,168,104,.45);background:rgba(255,255,255,.055)}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:20px 24px;
  background:transparent;
  border:0;
  color:var(--text);
  font-size:16px;
  font-weight:600;
  line-height:1.6;
  text-align:left;
  cursor:pointer;
}
.faq-icon{
  position:relative;
  flex:0 0 auto;
  width:16px;
  height:16px;
}
.faq-icon::before,
.faq-icon::after{
  content:"";
  position:absolute;
  left:50%;
  top:50%;
  background:var(--amber);
  border-radius:2px;
  transform:translate(-50%,-50%);
  transition:transform .28s ease,opacity .28s ease;
}
.faq-icon::before{width:14px;height:2px}
.faq-icon::after{width:2px;height:14px}
.faq-item.is-open .faq-icon::after{transform:translate(-50%,-50%) scaleY(0);opacity:0}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .3s ease;
}
.faq-a p{
  margin:0;
  padding:0 24px 22px;
  font-size:15px;
  line-height:1.9;
  color:var(--text-2);
}

/* ---------- CTA 与表单 ---------- */
.cta-panel{
  margin-top:64px;
  padding:44px;
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background:
    linear-gradient(155deg, rgba(240,168,104,.11) 0%, rgba(255,255,255,.028) 46%, rgba(111,211,232,.07) 100%);
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:48px;
  align-items:start;
  position:relative;
  overflow:hidden;
}
.cta-panel::before{
  content:"";
  position:absolute;
  right:-90px;
  top:-110px;
  width:320px;
  height:320px;
  border-radius:50%;
  background:radial-gradient(circle, rgba(240,168,104,.20), transparent 68%);
  pointer-events:none;
}
.cta-copy{position:relative;z-index:2}
.cta-copy h2{
  font-size:30px;
  font-weight:600;
  line-height:1.4;
  margin:0 0 16px;
}
.cta-copy p{
  font-size:15.5px;
  line-height:1.9;
  color:var(--text-2);
}
.cta-list{margin-top:24px;display:flex;flex-direction:column;gap:14px}
.cta-list li{
  display:flex;
  gap:12px;
  font-size:15px;
  color:var(--text-2);
}
.cta-list li strong{
  color:var(--text);
  font-weight:600;
}
.cta-list li::before{
  content:"";
  flex:0 0 auto;
  width:6px;
  height:6px;
  margin-top:11px;
  border-radius:50%;
  background:var(--amber);
  box-shadow:0 0 10px rgba(240,168,104,.7);
}
.form-card{
  position:relative;
  z-index:2;
  padding:28px;
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:rgba(7,10,18,.6);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow);
}
.form-card h3{
  font-size:18px;
  font-weight:600;
  margin:0 0 6px;
}
.form-hint{
  font-size:13px;
  line-height:1.7;
  color:var(--text-3);
  margin:0 0 20px;
}
.field{margin-bottom:16px}
.field label{
  display:block;
  font-size:13px;
  letter-spacing:.02em;
  color:var(--text-3);
  margin-bottom:8px;
}
.field input,
.field select,
.field textarea{
  display:block;
  width:100%;
  height:auto;
  margin:0;
  padding:12px 14px;
  font-size:15px;
  line-height:1.6;
  color:var(--text);
  background:rgba(255,255,255,.045);
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  box-shadow:none;
  transition:border-color .22s ease,box-shadow .22s ease,background-color .22s ease;
}
.field textarea{resize:vertical;min-height:104px}
.field select{
  appearance:none;
  -webkit-appearance:none;
  -moz-appearance:none;
  padding-right:38px;
  background-image:url("data:image/svg+xml;charset=UTF-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8'%3E%3Cpath fill='%23F0A868' d='M6 8 0 1.6 1.6 0 6 4.8 10.4 0 12 1.6z'/%3E%3C/svg%3E");
  background-repeat:no-repeat;
  background-position:right 14px center;
  background-size:11px 8px;
}
.field select option{background:#0D1322;color:var(--text)}
.field input::placeholder,
.field textarea::placeholder{color:var(--text-3)}
.field input:focus,
.field select:focus,
.field textarea:focus{
  outline:none;
  border-color:rgba(240,168,104,.85);
  background:rgba(255,255,255,.06);
  box-shadow:0 0 0 3px rgba(240,168,104,.18);
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:13px 26px;
  font-size:15px;
  font-weight:600;
  line-height:1.4;
  border-radius:var(--radius-sm);
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .25s ease,box-shadow .25s ease,background-color .25s ease,border-color .25s ease,color .25s ease;
}
.btn-primary{
  background:linear-gradient(135deg,var(--amber-bright),var(--amber));
  color:#20160C;
  box-shadow:0 8px 28px rgba(240,168,104,.28);
}
.btn-primary:hover{
  transform:translateY(-2px);
  box-shadow:0 12px 36px rgba(240,168,104,.4);
  color:#20160C;
}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 18px rgba(240,168,104,.3)}
.btn-ghost{
  background:transparent;
  border-color:var(--line);
  color:var(--text);
}
.btn-ghost:hover{
  border-color:rgba(240,168,104,.6);
  background:rgba(240,168,104,.08);
  color:var(--amber-bright);
  transform:translateY(-2px);
}
.form-card .btn{width:100%}
.form-note{
  margin:14px 0 0;
  font-size:13px;
  line-height:1.7;
  color:var(--text-3);
  min-height:22px;
}
.form-note.is-success{color:var(--amber-bright)}

/* ---------- 页脚 ---------- */
.site-footer{
  border-top:1px solid var(--line-soft);
  background:var(--bg-deep);
  padding:72px 0 28px;
}
.footer-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:32px;
  margin:0;
}
.footer-grid > .cell{
  width:auto;
  padding:0;
  float:none;
}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{
  font-size:14px;
  line-height:1.85;
  color:var(--text-3);
  max-width:280px;
}
.footer-col h4{
  font-size:13px;
  font-weight:600;
  letter-spacing:.14em;
  color:var(--text-3);
  margin:0 0 18px;
}
.footer-col ul{display:flex;flex-direction:column;gap:12px}
.footer-col a,
.footer-col span{
  font-size:14.5px;
  line-height:1.7;
  color:var(--text-2);
}
.footer-col a:hover{color:var(--amber)}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  margin-top:48px;
  padding-top:22px;
  border-top:1px solid var(--line-soft);
  font-size:13px;
  letter-spacing:.02em;
  color:var(--text-3);
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .page-hero{padding:60px 0 40px}
  .page-hero h1{font-size:34px}
  .layout{grid-template-columns:minmax(0,1fr);gap:32px}
  .subnav{position:static;padding:14px}
  .subnav-title{margin:0 0 10px 6px}
  .subnav ul{
    flex-direction:row;
    gap:8px;
    overflow-x:auto;
    padding-bottom:6px;
    -webkit-overflow-scrolling:touch;
  }
  .subnav a{
    white-space:nowrap;
    border-left:0;
    border-bottom:2px solid transparent;
    padding:8px 14px;
    border-radius:8px 8px 0 0;
  }
  .subnav a.is-active{
    border-left:0;
    border-bottom-color:var(--amber);
  }
  .feature-row{gap:32px;padding:40px 0}
  .feature-body h2{font-size:23px}
  .cta-panel{grid-template-columns:minmax(0,1fr);gap:32px;padding:34px}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:900px){
  .nav-toggle{display:flex}
  .nav-menu{
    position:fixed;
    left:0;
    right:0;
    top:78px;
    height:calc(100vh - 78px);
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:24px 24px 48px;
    background:rgba(7,10,18,.97);
    backdrop-filter:blur(18px);
    -webkit-backdrop-filter:blur(18px);
    border-top:1px solid var(--line-soft);
    transform:translateY(-10px);
    opacity:0;
    visibility:hidden;
    transition:transform .28s ease,opacity .28s ease,visibility .28s ease;
    overflow-y:auto;
  }
  .nav-menu.is-open{transform:translateY(0);opacity:1;visibility:visible}
  .nav-link{
    width:100%;
    font-size:21px;
    padding:18px 0;
    border-bottom:1px solid var(--line-soft);
  }
  .nav-link::after,
  .nav-link + .nav-link::before{display:none}
  .nav-link.is-active{color:var(--amber)}
  .nav-cta{margin-top:26px;width:100%;padding:14px;font-size:16px}
}
@media (max-width:768px){
  .page-hero{padding:48px 0 32px}
  .page-hero h1{font-size:30px}
  .hero-lede{font-size:16px;line-height:1.85}
  .content-shell{padding:40px 0 72px}
  .feature-row{grid-template-columns:minmax(0,1fr);gap:24px;padding:34px 0}
  .feature-row.reverse .feature-media{order:0}
  .stats-band{grid-template-columns:minmax(0,1fr);margin:36px 0 6px;padding:0}
  .stat{padding:18px 0;border-left:0;border-top:1px solid var(--line-soft)}
  .stat:first-child{border-top:0;padding-top:0}
  .block-title{font-size:22px;margin:44px 0 18px}
  .cta-copy h2{font-size:24px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .container{padding:0 18px}
  .nav-inner{min-height:70px}
  .nav-menu{top:70px;height:calc(100vh - 70px);padding:20px 18px 40px}
  .page-hero h1{font-size:26px;line-height:1.4}
  .hero-meta{flex-direction:column;gap:8px}
  .feature-body h2{font-size:20px}
  .feature-body p{font-size:15px}
  .stat b{font-size:28px}
  .faq-q{font-size:15px;padding:16px 18px}
  .faq-a p{padding:0 18px 18px;font-size:14.5px}
  .cta-panel{padding:24px 20px;border-radius:var(--radius)}
  .form-card{padding:20px}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .footer-brand p{max-width:none}
  .site-footer{padding:56px 0 24px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition:none !important;animation:none !important}
}

/* roulang page: category3 */
:root{
  --bg:#0A0E18;
  --bg-alt:#0D1322;
  --bg-deep:#070A12;
  --card:rgba(255,255,255,.045);
  --card-border:rgba(255,255,255,.09);
  --amber:#F0A868;
  --amber-light:#FFC98A;
  --amber-dark:#C9854B;
  --cyan:#6FD3E8;
  --text:#E9EEF6;
  --text-2:#9BA8BE;
  --text-3:#6B7789;
  --line:rgba(255,255,255,.10);
  --radius-card:16px;
  --radius-btn:10px;
  --shadow:0 18px 48px rgba(0,0,0,.45);
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Inter","Manrope",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
body.nav-open{overflow:hidden;}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;transition:color .25s ease;}
a:hover{color:var(--amber);}
h1,h2,h3,h4,h5,h6,p,ul,ol,figure,blockquote{margin:0;padding:0;}
ul,ol{list-style:none;}
button{font-family:inherit;font-size:inherit;border:0;background:none;color:inherit;cursor:pointer;}
input,textarea,select{font-family:inherit;font-size:15px;color:var(--text);}
:focus-visible{outline:2px solid var(--amber);outline-offset:3px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:96px 0;position:relative;}
.section--tight{padding:72px 0;}
.section-band{background:var(--bg-alt);}
.section-head{max-width:760px;margin:0 auto 56px;text-align:center;}
.section-head--left{margin-left:0;text-align:left;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.14em;color:var(--amber);
  border:1px solid rgba(240,168,104,.36);
  background:rgba(240,168,104,.08);
  padding:6px 14px;border-radius:999px;margin-bottom:18px;
}
.eyebrow--cyan{color:var(--cyan);border-color:rgba(111,211,232,.34);background:rgba(111,211,232,.07);}
h2{font-size:34px;line-height:1.35;font-weight:600;letter-spacing:-.01em;margin-bottom:16px;}
h3{font-size:20px;font-weight:600;line-height:1.5;}
.section-head p{color:var(--text-2);font-size:16px;line-height:1.9;}
.text-muted{color:var(--text-2);}
.text-weak{color:var(--text-3);font-size:13px;}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(10,14,24,.72);
  border-bottom:1px solid transparent;
  transition:background .25s ease,border-color .25s ease;
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.site-header.is-scrolled{background:rgba(7,10,18,.92);border-bottom-color:var(--line);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:78px;}
.brand{display:flex;flex-direction:column;line-height:1.1;flex:none;}
.brand-main{font-size:19px;font-weight:700;letter-spacing:.02em;color:var(--text);}
.brand-sub{font-size:11px;letter-spacing:.24em;color:var(--amber);margin-top:3px;}
.brand:hover .brand-main{color:var(--amber);}
.nav-menu{display:flex;align-items:center;gap:4px;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;min-height:44px;
  padding:10px 15px;font-size:15px;color:var(--text-2);border-radius:999px;
  transition:color .25s ease,background .25s ease;
}
.nav-link::after{
  content:"";position:absolute;left:15px;right:15px;bottom:4px;height:2px;border-radius:2px;
  background:var(--amber);transform:scaleX(0);transform-origin:center;transition:transform .25s ease;
}
.nav-link:hover{color:var(--text);}
.nav-link.is-active{color:var(--amber);}
.nav-link.is-active::after{transform:scaleX(1);}
.nav-cta{
  display:inline-flex;align-items:center;justify-content:center;min-height:44px;
  margin-left:14px;padding:0 20px;border-radius:var(--radius-btn);
  font-size:14px;font-weight:600;color:var(--text);
  border:1px solid rgba(255,255,255,.18);
  background:rgba(255,255,255,.02);
  transition:all .25s ease;
}
.nav-cta:hover{border-color:var(--amber);background:rgba(240,168,104,.10);color:var(--amber-light);}
.nav-toggle{
  display:none;width:44px;height:44px;flex-direction:column;align-items:center;justify-content:center;gap:5px;
  border:1px solid var(--line);border-radius:10px;background:rgba(255,255,255,.03);
}
.nav-toggle span{display:block;width:18px;height:1.6px;background:var(--text);border-radius:2px;transition:transform .25s ease,opacity .25s ease;}
.nav-toggle.is-open span:nth-child(1){transform:translateY(6.6px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-6.6px) rotate(-45deg);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 26px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;
  transition:transform .25s ease,box-shadow .25s ease,background .25s ease,border-color .25s ease;
}
.btn-primary{
  background:linear-gradient(135deg,var(--amber-light),var(--amber));
  color:#221608;box-shadow:0 8px 28px rgba(240,168,104,.28);
}
.btn-primary:hover{
  transform:translateY(-2px);
  box-shadow:0 12px 36px rgba(240,168,104,.42);
  color:#221608;
}
.btn-ghost{
  background:rgba(255,255,255,.02);border-color:rgba(255,255,255,.18);color:var(--text);
}
.btn-ghost:hover{border-color:var(--amber);background:rgba(240,168,104,.08);color:var(--amber-light);transform:translateY(-2px);}
.btn-block{width:100%;}
.btn-sm{min-height:44px;padding:0 20px;font-size:14px;}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;text-align:center;
  padding:112px 0 92px;
  background:
    radial-gradient(760px 420px at 50% -8%,rgba(240,168,104,.13),transparent 68%),
    radial-gradient(620px 380px at 88% 84%,rgba(111,211,232,.09),transparent 70%),
    var(--bg);
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.16) 1px,transparent 1px);
  background-size:128px 128px;opacity:.34;
  mask-image:radial-gradient(circle at 50% 32%,#000 0%,transparent 72%);
  -webkit-mask-image:radial-gradient(circle at 50% 32%,#000 0%,transparent 72%);
}
.hero .container{position:relative;z-index:2;}
.hero h1{
  font-size:48px;line-height:1.25;font-weight:700;letter-spacing:-.01em;
  margin:0 auto 22px;max-width:900px;
}
.hero h1 .accent{
  display:block;font-size:22px;font-weight:500;letter-spacing:.02em;
  color:var(--amber);margin-top:14px;
}
.hero-lead{
  max-width:760px;margin:0 auto 34px;color:var(--text-2);
  font-size:17px;line-height:1.9;
}
.hero-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:14px;margin-bottom:40px;}
.hero-meta{
  display:flex;flex-wrap:wrap;justify-content:center;align-items:center;gap:0;
  font-size:13px;color:var(--text-3);letter-spacing:.02em;
}
.hero-meta span{padding:0 18px;position:relative;}
.hero-meta span+span::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:1px;height:12px;background:var(--line);
}

/* ============ 时间线 ============ */
.timeline{max-width:880px;margin:0 auto;}
.timeline-item{position:relative;padding-left:68px;padding-bottom:44px;}
.timeline-item:last-child{padding-bottom:0;}
.timeline-item::before{
  content:"";position:absolute;left:19px;top:46px;bottom:6px;width:1px;
  background:linear-gradient(180deg,rgba(240,168,104,.5),rgba(255,255,255,.08));
}
.timeline-item:last-child::before{display:none;}
.timeline-num{
  position:absolute;left:0;top:0;width:40px;height:40px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:700;color:var(--amber);
  background:rgba(240,168,104,.12);border:1px solid rgba(240,168,104,.45);
  box-shadow:0 0 0 5px rgba(10,14,24,.9);
}
.timeline-body h3{margin-bottom:8px;color:var(--text);}
.timeline-body p{color:var(--text-2);font-size:15px;line-height:1.9;max-width:640px;}
.timeline-tag{
  display:inline-block;margin-top:12px;padding:4px 12px;border-radius:999px;
  font-size:12px;letter-spacing:.06em;color:var(--cyan);
  border:1px solid rgba(111,211,232,.32);background:rgba(111,211,232,.07);
}

/* ============ 图文条 ============ */
.figure-band{
  border-radius:18px;overflow:hidden;border:1px solid var(--card-border);
  box-shadow:var(--shadow);position:relative;margin-bottom:48px;
}
.figure-band img{width:100%;aspect-ratio:16/6;object-fit:cover;}
.figure-band::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(10,14,24,.9) 0%,rgba(10,14,24,.42) 46%,rgba(10,14,24,.15) 100%);
}
.figure-band figcaption{
  position:absolute;left:0;top:0;bottom:0;z-index:2;
  display:flex;flex-direction:column;justify-content:center;
  padding:0 44px;max-width:520px;
}
.figure-band figcaption h3{font-size:22px;margin-bottom:10px;}
.figure-band figcaption p{font-size:14px;color:var(--text-2);line-height:1.8;}

/* ============ 规格对照 ============ */
.spec-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.spec-card{
  background:var(--card);border:1px solid var(--card-border);
  border-radius:var(--radius-card);padding:28px;
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.spec-card:hover{transform:translateY(-4px);border-color:rgba(240,168,104,.45);box-shadow:var(--shadow);}
.spec-card h3{display:flex;align-items:center;gap:10px;margin-bottom:6px;font-size:18px;}
.spec-card h3 i{color:var(--amber);font-size:16px;}
.spec-card > p{font-size:13px;color:var(--text-3);margin-bottom:18px;}
.spec-row{
  display:flex;justify-content:space-between;align-items:flex-start;gap:20px;
  padding:14px 0;border-bottom:1px solid var(--line);font-size:15px;
}
.spec-row:last-child{border-bottom:0;padding-bottom:0;}
.spec-key{color:var(--text-2);flex:none;}
.spec-val{color:var(--text);text-align:right;font-weight:500;}

/* ============ 数据条带 ============ */
.stat-band{
  display:grid;grid-template-columns:repeat(3,1fr);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  margin-top:48px;
}
.stat{text-align:center;padding:32px 16px;border-right:1px solid var(--line);}
.stat:last-child{border-right:0;}
.stat-num{font-size:32px;font-weight:700;color:var(--amber);line-height:1.2;letter-spacing:-.01em;}
.stat-num small{font-size:15px;font-weight:500;color:var(--amber);margin-left:4px;}
.stat-label{font-size:13px;color:var(--text-3);margin-top:8px;letter-spacing:.02em;}

/* ============ 双卡引导 ============ */
.path-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.path-card{
  position:relative;display:flex;flex-direction:column;
  background:var(--card);border:1px solid var(--card-border);
  border-radius:var(--radius-card);padding:32px;
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.path-card:hover{transform:translateY(-4px);border-color:rgba(240,168,104,.45);box-shadow:var(--shadow);}
.path-card.is-featured{
  border-color:rgba(240,168,104,.55);
  background:linear-gradient(180deg,rgba(240,168,104,.09),rgba(255,255,255,.035));
  box-shadow:0 18px 48px rgba(240,168,104,.14);
}
.path-badge{
  position:absolute;top:-13px;left:32px;
  padding:4px 14px;border-radius:999px;font-size:12px;font-weight:600;letter-spacing:.06em;
  color:#221608;background:linear-gradient(135deg,var(--amber-light),var(--amber));
}
.path-card h3{font-size:21px;margin-bottom:10px;}
.path-card > p{font-size:14px;color:var(--text-2);line-height:1.85;margin-bottom:20px;}
.path-list{margin-bottom:26px;}
.path-list li{
  position:relative;padding-left:26px;font-size:15px;color:var(--text-2);
  line-height:1.85;margin-bottom:12px;
}
.path-list li:last-child{margin-bottom:0;}
.path-list li::before{
  content:"\2713";position:absolute;left:0;top:0;
  color:var(--amber);font-size:13px;font-weight:700;
}
.path-card .btn{margin-top:auto;}

/* ============ FAQ ============ */
.faq-list{max-width:880px;margin:0 auto;}
.faq-item{
  border:1px solid var(--card-border);background:var(--card);
  border-radius:14px;margin-bottom:14px;overflow:hidden;
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  transition:border-color .25s ease,background .25s ease;
}
.faq-item:hover{border-color:rgba(240,168,104,.34);}
.faq-item.is-open{border-color:rgba(240,168,104,.5);background:rgba(240,168,104,.05);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;min-height:44px;text-align:left;
  font-size:16px;font-weight:600;color:var(--text);line-height:1.6;
}
.faq-q:hover{color:var(--amber-light);}
.faq-icon{
  flex:none;width:26px;height:26px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-size:16px;line-height:1;color:var(--amber);
  border:1px solid rgba(240,168,104,.4);background:rgba(240,168,104,.08);
  transition:transform .3s ease;
}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-a p{padding:0 24px 22px;color:var(--text-2);font-size:15px;line-height:1.9;}
.faq-item.is-open .faq-a{max-height:340px;}

/* ============ 表单 / CTA ============ */
.consult-wrap{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start;}
.consult-intro h2{margin-bottom:18px;}
.consult-intro > p{color:var(--text-2);font-size:16px;line-height:1.9;margin-bottom:26px;}
.consult-points li{
  display:flex;gap:14px;margin-bottom:18px;font-size:15px;color:var(--text-2);line-height:1.8;
}
.consult-points li i{color:var(--amber);margin-top:5px;font-size:14px;flex:none;}
.consult-foot{
  margin-top:30px;padding-top:22px;border-top:1px solid var(--line);
  font-size:14px;color:var(--text-3);line-height:1.85;
}
.form-card{
  background:var(--card);border:1px solid var(--card-border);
  border-radius:var(--radius-card);padding:30px;
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow);
}
.form-card h3{font-size:18px;margin-bottom:6px;}
.form-card .form-hint{font-size:13px;color:var(--text-3);margin-bottom:22px;line-height:1.8;}
.field{margin-bottom:18px;}
.field label{display:block;font-size:13px;color:var(--text-2);margin-bottom:8px;letter-spacing:.02em;}
.field input,.field select,.field textarea{
  width:100%;background:rgba(255,255,255,.035);
  border:1px solid rgba(255,255,255,.12);border-radius:10px;
  padding:12px 14px;color:var(--text);line-height:1.6;
  transition:border-color .25s ease,box-shadow .25s ease,background .25s ease;
  appearance:none;-webkit-appearance:none;
}
.field textarea{resize:vertical;min-height:104px;}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3);}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--amber);background:rgba(240,168,104,.06);
  box-shadow:0 0 0 3px rgba(240,168,104,.18);
}
.field select{
  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) calc(50% + 2px),calc(100% - 14px) calc(50% + 2px);
  background-size:6px 6px,6px 6px;background-repeat:no-repeat;
}
.field select option{background:#0D1322;color:var(--text);}
.form-note{font-size:12px;color:var(--text-3);margin-top:14px;line-height:1.8;}

/* ============ CTA 条带 ============ */
.cta-band{
  position:relative;overflow:hidden;
  border:1px solid var(--card-border);border-radius:20px;
  background:linear-gradient(120deg,rgba(240,168,104,.12),rgba(111,211,232,.07) 60%,rgba(255,255,255,.03));
  padding:44px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.cta-band::before{
  content:"";position:absolute;width:340px;height:340px;right:-90px;top:-140px;
  background:radial-gradient(circle,rgba(240,168,104,.32),transparent 68%);
  filter:blur(20px);pointer-events:none;
}
.cta-band-text{position:relative;z-index:2;}
.cta-band-text h3{font-size:24px;margin-bottom:10px;}
.cta-band-text p{font-size:15px;color:var(--text-2);line-height:1.85;max-width:560px;}
.cta-band-actions{position:relative;z-index:2;display:flex;gap:14px;flex-wrap:wrap;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--bg-deep);border-top:1px solid var(--line);
  padding:72px 0 32px;margin-top:96px;
}
.footer-grid{row-gap:40px;}
.footer-brand .brand{margin-bottom:18px;}
.footer-brand p{font-size:14px;color:var(--text-3);line-height:1.9;max-width:280px;}
.footer-col h4{
  font-size:13px;font-weight:600;letter-spacing:.14em;color:var(--text-3);
  text-transform:uppercase;margin-bottom:18px;
}
.footer-col ul li{margin-bottom:12px;font-size:15px;color:var(--text-2);line-height:1.7;}
.footer-col ul li a{color:var(--text-2);}
.footer-col ul li a:hover{color:var(--amber);}
.footer-col ul li span{color:var(--text-2);}
.footer-bottom{
  margin-top:48px;padding-top:24px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);letter-spacing:.02em;
}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .hero{padding:88px 0 72px;}
  .hero h1{font-size:38px;}
  .hero h1 .accent{font-size:19px;}
  .section{padding:76px 0;}
  h2{font-size:28px;}
  .spec-grid,.path-grid{grid-template-columns:1fr;}
  .consult-wrap{grid-template-columns:1fr;gap:36px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px;}
  .figure-band figcaption{padding:0 28px;max-width:420px;}
  .figure-band figcaption h3{font-size:19px;}
  .nav-menu{
    position:fixed;left:0;right:0;top:78px;bottom:0;
    flex-direction:column;align-items:stretch;gap:0;
    padding:24px;background:rgba(7,10,18,.97);
    backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
    border-top:1px solid var(--line);
    display:none;overflow-y:auto;
  }
  .nav-menu.is-open{display:flex;}
  .nav-link{
    padding:18px 8px;font-size:19px;border-radius:0;
    border-bottom:1px solid var(--line);min-height:56px;
  }
  .nav-link::after{display:none;}
  .nav-link.is-active{color:var(--amber);}
  .nav-cta{margin:22px 0 0;min-height:50px;justify-content:center;width:100%;}
  .nav-toggle{display:flex;}
}
@media (max-width:767px){
  .container{padding:0 18px;}
  .hero{padding:64px 0 56px;}
  .hero h1{font-size:30px;}
  .hero h1 .accent{font-size:16px;margin-top:12px;}
  .hero-lead{font-size:15px;line-height:1.85;}
  .hero-actions{gap:12px;margin-bottom:32px;}
  .hero-actions .btn{width:100%;}
  .hero-meta span{padding:0 12px;font-size:12px;}
  h2{font-size:24px;}
  .section{padding:56px 0;}
  .section--tight{padding:48px 0;}
  .section-head{margin-bottom:36px;}
  .timeline-item{padding-left:56px;padding-bottom:36px;}
  .timeline-num{width:34px;height:34px;font-size:13px;}
  .timeline-item::before{left:16.5px;top:40px;}
  .timeline-body h3{font-size:18px;}
  .timeline-body p{font-size:14px;}
  .spec-card,.path-card,.form-card{padding:22px;}
  .spec-row{font-size:14px;gap:14px;}
  .stat{padding:24px 8px;}
  .stat-num{font-size:24px;}
  .stat-label{font-size:12px;}
  .figure-band img{aspect-ratio:16/10;}
  .figure-band::after{background:linear-gradient(180deg,rgba(10,14,24,.55) 0%,rgba(10,14,24,.92) 100%);}
  .figure-band figcaption{padding:22px;justify-content:flex-end;max-width:100%;}
  .figure-band figcaption h3{font-size:17px;}
  .figure-band figcaption p{font-size:13px;}
  .faq-q{font-size:15px;padding:18px 18px;gap:14px;}
  .faq-a p{padding:0 18px 18px;font-size:14px;}
  .cta-band{padding:28px 22px;}
  .cta-band-text h3{font-size:20px;}
  .cta-band-actions{width:100%;}
  .cta-band-actions .btn{width:100%;}
  .site-footer{padding:52px 0 26px;margin-top:64px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
}