/* roulang page: index */
:root{
  --bg-0:#050A12;
  --bg-1:#0A131F;
  --bg-2:#101C2B;
  --line:rgba(120,190,220,.14);
  --primary:#16D9C6;
  --primary-deep:#0C8C84;
  --accent:#FF6A3D;
  --text-1:#EAF3F8;
  --text-2:#9DB0C4;
  --text-3:#6B7F94;
  --radius-card:18px;
  --radius-img:14px;
  --shadow-card:0 18px 40px -20px rgba(0,0,0,.55);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-1);
  font-family:system-ui,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  background-image:
    radial-gradient(circle at 12% 8%, rgba(22,217,198,.05), transparent 42%),
    linear-gradient(180deg, rgba(255,255,255,.014) 0 1px, transparent 1px 100%);
  background-size:auto, 100% 86px;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--text-2);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--primary);}
button,input{font:inherit;color:inherit;}
button{border:0;background:none;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}
.num{font-variant-numeric:tabular-nums;}

.shell{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:640px){.shell{padding:0 24px;}}
@media (min-width:1024px){.shell{padding:0 32px;}}
@media (min-width:1280px){.shell{max-width:1280px;}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  border-bottom:1px solid transparent;
  background:rgba(5,10,18,.72);
  backdrop-filter:blur(14px) saturate(140%);
  transition:background .22s ease,border-color .22s ease;
}
.site-header.is-scrolled{background:rgba(5,10,18,.94);border-bottom-color:var(--line);}
.nav-row{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));align-items:center;height:64px;gap:12px;}
@media (max-width:639px){.nav-row{height:56px;}}
.brand{display:flex;align-items:center;gap:10px;grid-column:span 3;}
@media (max-width:1023px){.brand{grid-column:span 8;}}
.brand-mark{width:36px;height:36px;flex:none;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:15px;font-weight:800;letter-spacing:.01em;color:var(--text-1);}
.brand-sub{font-size:11px;letter-spacing:.14em;color:var(--text-3);}
.nav-links{display:none;grid-column:span 6;align-items:center;justify-content:center;gap:26px;}
@media (min-width:1024px){.nav-links{display:flex;}}
.nav-links a{font-size:14px;color:var(--text-2);padding:20px 0;position:relative;white-space:nowrap;}
.nav-links a::after{content:"";position:absolute;left:0;right:0;bottom:12px;height:2px;border-radius:2px;background:var(--primary);transform:scaleX(0);transition:transform .2s ease;}
.nav-links a:hover{color:var(--text-1);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.active{color:var(--primary);}
.nav-links a.active::after{transform:scaleX(1);}
.nav-side{display:none;grid-column:span 3;align-items:center;justify-content:flex-end;gap:12px;}
@media (min-width:1024px){.nav-side{display:flex;}}
.nav-search{display:flex;align-items:center;gap:8px;height:40px;padding:0 14px;border:1px solid var(--line);border-radius:12px;background:rgba(255,255,255,.03);color:var(--text-3);font-size:13px;transition:border-color .2s ease,box-shadow .2s ease;}
.nav-search:focus-within{border-color:rgba(22,217,198,.6);box-shadow:0 0 0 3px rgba(22,217,198,.12);}
.nav-search input{width:104px;background:none;border:0;outline:none;font-size:13px;color:var(--text-1);}
.nav-search input::placeholder{color:var(--text-3);}
.burger{grid-column:span 4;justify-self:end;display:flex;flex-direction:column;gap:5px;padding:10px;border:1px solid var(--line);border-radius:10px;}
@media (min-width:1024px){.burger{display:none;}}
.burger span{display:block;width:20px;height:2px;background:var(--text-1);border-radius:2px;}
.drawer{position:fixed;inset:0 0 0 auto;width:min(84vw,340px);background:var(--bg-1);border-left:1px solid var(--line);transform:translateX(100%);transition:transform .26s ease;z-index:80;display:flex;flex-direction:column;padding:22px 22px 28px;}
.drawer.open{transform:translateX(0);}
.drawer-scrim{position:fixed;inset:0;background:rgba(2,6,12,.66);opacity:0;pointer-events:none;transition:opacity .26s ease;z-index:70;}
.drawer-scrim.open{opacity:1;pointer-events:auto;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px;}
.drawer-nav{display:flex;flex-direction:column;gap:4px;flex:1;}
.drawer-nav a{padding:13px 12px;border-radius:12px;font-size:15px;border:1px solid transparent;}
.drawer-nav a.active{color:var(--primary);background:rgba(22,217,198,.08);border-color:rgba(22,217,198,.22);}
.drawer-foot{margin-top:auto;padding-top:18px;border-top:1px solid var(--line);}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 26px;border-radius:999px;font-size:15px;font-weight:700;transition:transform .18s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease;white-space:nowrap;}
.btn-primary{background:var(--accent);color:#1A0A04;box-shadow:0 10px 28px -14px rgba(255,106,61,.7);}
.btn-primary:hover{color:#1A0A04;background:#FF7C53;box-shadow:0 12px 30px -8px rgba(255,106,61,.5);transform:translateY(-2px);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{border:1px solid rgba(22,217,198,.36);color:var(--primary);background:rgba(22,217,198,.06);}
.btn-ghost:hover{color:#C9FFF7;background:rgba(22,217,198,.14);border-color:rgba(22,217,198,.6);transform:translateY(-2px);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn[disabled]{background:#3A4756;color:#8A99AA;box-shadow:none;cursor:not-allowed;}

/* ---------- sections ---------- */
.section{padding:60px 0;}
@media (min-width:1024px){.section{padding:96px 0;}}
.section-alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.08em;color:var(--primary);background:rgba(22,217,198,.08);border:1px solid rgba(22,217,198,.24);border-radius:8px;padding:5px 11px;}
.h2{font-size:24px;line-height:1.35;font-weight:800;letter-spacing:-.01em;margin:14px 0 10px;}
@media (min-width:768px){.h2{font-size:28px;}}
@media (min-width:1024px){.h2{font-size:34px;}}
.lead{color:var(--text-2);font-size:15px;max-width:760px;}
.h3{font-size:18px;font-weight:700;}

/* ---------- hero ---------- */
.hero{padding-top:52px;padding-bottom:60px;position:relative;overflow:hidden;}
@media (min-width:1024px){.hero{padding-top:76px;padding-bottom:88px;}}
.hero-grid{display:grid;grid-template-columns:1fr;gap:36px;}
@media (min-width:1024px){
  .hero-grid{grid-template-columns:repeat(12,minmax(0,1fr));gap:32px;align-items:center;}
  .hero-copy{grid-column:span 7;}
  .hero-visual{grid-column:span 5;}
}
.hero h1{font-size:30px;line-height:1.24;font-weight:800;letter-spacing:-.015em;margin:16px 0 16px;}
@media (min-width:768px){.hero h1{font-size:40px;}}
@media (min-width:1024px){.hero h1{font-size:52px;}}
.hero-sub{color:var(--text-2);font-size:16px;margin-bottom:26px;max-width:560px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:30px;}
.stat-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;border-top:1px solid var(--line);padding-top:22px;}
.stat-num{font-size:22px;font-weight:800;color:var(--text-1);}
@media (min-width:768px){.stat-num{font-size:26px;}}
.stat-num span{color:var(--primary);font-size:14px;font-weight:700;}
.stat-label{font-size:12px;letter-spacing:.04em;color:var(--text-3);}
.hero-visual{position:relative;}
.hero-media{position:relative;border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-card);}
.hero-media img{width:100%;height:320px;object-fit:cover;}
@media (min-width:768px){.hero-media img{height:400px;}}
@media (min-width:1024px){.hero-media img{height:460px;}}
.hero-media::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(5,10,18,.92) 0%,rgba(5,10,18,.34) 48%,rgba(5,10,18,0) 100%);pointer-events:none;}
.glass-card{background:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.02));border:1px solid var(--line);border-top-color:rgba(255,255,255,.18);backdrop-filter:blur(14px) saturate(140%);border-radius:var(--radius-card);box-shadow:var(--shadow-card);}
.hero-float{position:absolute;right:14px;bottom:14px;max-width:70%;padding:14px 16px;z-index:2;}
@media (min-width:768px){.hero-float{right:20px;bottom:20px;padding:16px 18px;}}
.hero-float .row{display:flex;align-items:center;justify-content:space-between;gap:14px;font-size:12px;color:var(--text-3);}
.hero-float .row + .row{margin-top:9px;padding-top:9px;border-top:1px solid var(--line);}
.dot{width:8px;height:8px;border-radius:50%;background:var(--primary);box-shadow:0 0 0 4px rgba(22,217,198,.14);display:inline-block;margin-right:7px;}

/* ---------- table ---------- */
.table-wrap{position:relative;border:1px solid var(--line);border-radius:var(--radius-card);background:var(--bg-2);overflow:hidden;}
.table-scroll{overflow-x:auto;}
.cmp-table{border-collapse:separate;border-spacing:0;width:100%;min-width:760px;font-size:14px;}
.cmp-table th,.cmp-table td{padding:0 18px;height:54px;text-align:left;border-bottom:1px solid var(--line);vertical-align:middle;}
.cmp-table thead th{position:sticky;top:0;z-index:3;background:#0C1624;font-size:13px;letter-spacing:.05em;color:var(--text-2);font-weight:700;height:60px;}
.cmp-table tbody th{position:sticky;left:0;z-index:2;background:#0C1624;font-weight:600;color:var(--text-1);white-space:nowrap;box-shadow:1px 0 0 var(--line);}
.cmp-table tbody tr:hover td{background:rgba(22,217,198,.045);}
.cmp-table td{color:var(--text-2);}
.cmp-table .rec{background:rgba(22,217,198,.05);}
.cmp-table thead th.rec{position:relative;color:var(--primary);}
.cmp-table thead th.rec::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--primary),var(--accent));}
.corner-tag{display:inline-block;margin-left:8px;font-size:11px;padding:2px 7px;border-radius:6px;background:var(--accent);color:#1A0A04;font-weight:700;letter-spacing:.04em;}
.mark{display:inline-flex;align-items:center;justify-content:center;width:20px;height:20px;border-radius:50%;font-size:12px;font-weight:800;}
.mark-yes{background:rgba(22,217,198,.16);color:var(--primary);}
.mark-no{background:rgba(107,127,148,.16);color:var(--text-3);}
.scroll-hint{display:block;padding:10px 18px;font-size:12px;color:var(--text-3);border-top:1px solid var(--line);}
@media (min-width:1024px){.scroll-hint{display:none;}}
.table-note{margin-top:14px;font-size:13px;color:var(--text-3);}

/* ---------- cards ---------- */
.card{position:relative;background:var(--bg-2);border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-card);overflow:hidden;transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;}
.card::before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,var(--primary),transparent);opacity:0;transition:opacity .2s ease-out;z-index:4;}
.card:hover{transform:translateY(-4px);border-color:rgba(22,217,198,.3);}
.card:hover::before{opacity:1;}
.badge{display:inline-flex;align-items:center;height:24px;padding:0 9px;border-radius:8px;font-size:12px;letter-spacing:.04em;background:rgba(22,217,198,.1);border:1px solid rgba(22,217,198,.24);color:var(--primary);}
.badge-accent{background:rgba(255,106,61,.12);border-color:rgba(255,106,61,.3);color:var(--accent);}
.badge-mute{background:rgba(255,255,255,.04);border-color:var(--line);color:var(--text-3);}
.arrow-link{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;color:var(--primary);}
.arrow-link svg{transition:transform .2s ease;}
.arrow-link:hover svg{transform:translateX(2px);}

.level-wide{display:grid;grid-template-columns:1fr;gap:0;}
@media (min-width:900px){.level-wide{grid-template-columns:1.05fr 1fr;}}
.level-wide .body{padding:26px 24px;}
@media (min-width:768px){.level-wide .body{padding:34px 32px;}}
.level-wide .pic img{width:100%;height:100%;min-height:240px;object-fit:cover;}
.price{font-size:32px;font-weight:800;color:var(--text-1);}
.price small{font-size:13px;font-weight:500;color:var(--text-3);margin-left:6px;}
.tick{display:flex;gap:9px;font-size:14px;color:var(--text-2);padding:6px 0;}
.tick i{color:var(--primary);font-style:normal;font-weight:800;}
.level-col{display:grid;grid-template-columns:1fr;gap:20px;margin-top:20px;}
@media (min-width:768px){.level-col{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;align-items:start;}}
.level-col .offset{margin-top:0;}
@media (min-width:768px){.level-col .offset{margin-top:24px;}}
.level-col .body{padding:26px 24px;}

.grid-covers{display:grid;grid-template-columns:1fr;gap:20px;}
@media (min-width:640px){.grid-covers{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (min-width:1024px){.grid-covers{grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}}
.cover{position:relative;overflow:hidden;border-radius:var(--radius-card);border:1px solid var(--line);background:var(--bg-2);}
.cover img{width:100%;height:190px;object-fit:cover;transition:transform .3s ease;}
.card:hover .cover img{transform:scale(1.03);}
.lock{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;background:rgba(5,10,18,.6);backdrop-filter:blur(6px) brightness(.72);border:1px solid rgba(22,217,198,.28);}
.lock.login{border-color:rgba(255,106,61,.42);}
.lock-ico{width:38px;height:38px;border-radius:50%;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;background:rgba(255,255,255,.06);}
.lock-text{font-size:12px;color:var(--text-2);}
.cover-meta{padding:16px 18px 18px;}
.clamp2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}

.pills{display:flex;flex-wrap:wrap;gap:10px;margin:22px 0 26px;}
.pill{height:36px;padding:0 16px;border-radius:999px;border:1px solid var(--line);background:rgba(255,255,255,.03);color:var(--text-2);font-size:13px;display:inline-flex;align-items:center;transition:all .2s ease;}
.pill:hover,.pill.active{border-color:rgba(22,217,198,.5);color:var(--primary);background:rgba(22,217,198,.08);}

/* ---------- news / cms ---------- */
.news-grid{display:grid;grid-template-columns:1fr;gap:22px;}
@media (min-width:1024px){.news-grid{grid-template-columns:1.15fr 1fr;gap:26px;align-items:start;}}
.news-main{display:grid;grid-template-columns:1fr;gap:0;}
@media (min-width:768px){.news-main{grid-template-columns:1fr 1fr;}}
.news-main .pic img{width:100%;height:100%;min-height:200px;object-fit:cover;}
.news-main .body{padding:24px 22px 26px;}
.news-list{display:grid;grid-template-columns:1fr;gap:0;}
.news-item{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:14px;padding:16px 18px;border-bottom:1px solid var(--line);transition:background .2s ease;}
.news-item:last-child{border-bottom:0;}
.news-item:hover{background:rgba(22,217,198,.045);}
.news-item .txt{min-width:0;}
.news-item .t{font-size:15px;font-weight:600;color:var(--text-1);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.news-item .s{font-size:12px;color:var(--text-3);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;margin-top:2px;}
.news-item time{font-size:12px;color:var(--text-3);white-space:nowrap;}
.empty{padding:44px 24px;text-align:center;}
.empty svg{margin:0 auto 12px;}
.empty .m{font-size:15px;font-weight:600;color:var(--text-1);}
.empty .s2{font-size:13px;color:var(--text-3);margin-top:6px;}

/* ---------- faq ---------- */
.faq-card{padding:8px 0;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:last-child{border-bottom:0;}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;text-align:left;padding:20px 24px;font-size:16px;font-weight:700;color:var(--text-1);transition:color .2s ease;}
.faq-q:hover{color:var(--primary);}
.faq-ico{flex:none;width:26px;height:26px;border-radius:8px;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;color:var(--primary);font-size:15px;line-height:1;transition:transform .22s ease,background .2s ease;}
.faq-item.open .faq-ico{transform:rotate(45deg);background:rgba(22,217,198,.12);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease;}
.faq-a p{margin:0;padding:0 24px 20px;font-size:15px;line-height:1.8;color:var(--text-2);}

/* ---------- cta ---------- */
.cta-block{padding:34px 26px;text-align:center;}
@media (min-width:768px){.cta-block{padding:52px 48px;}}
.cta-points{display:grid;grid-template-columns:1fr;gap:14px;margin:26px auto 30px;max-width:820px;}
@media (min-width:768px){.cta-points{grid-template-columns:repeat(3,minmax(0,1fr));}}
.cta-point{border:1px solid var(--line);border-radius:14px;padding:16px;background:rgba(255,255,255,.03);text-align:left;}
.cta-point .n{font-size:13px;color:var(--primary);font-weight:700;letter-spacing:.04em;}

/* ---------- footer ---------- */
.site-footer{border-top:1px solid var(--line);background:var(--bg-1);padding-top:56px;}
.foot-grid{display:grid;grid-template-columns:1fr;gap:34px;}
@media (min-width:640px){.foot-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (min-width:1024px){.foot-grid{grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:30px;}}
.foot-title{font-size:13px;letter-spacing:.08em;color:var(--text-1);font-weight:700;margin-bottom:16px;}
.foot-list a{display:block;font-size:14px;color:var(--text-2);padding:6px 0;}
.sub-form{display:flex;gap:10px;margin-top:14px;}
.sub-input{flex:1;height:46px;border-radius:12px;border:1px solid var(--line);background:rgba(255,255,255,.03) ;padding:0 14px;font-size:14px;color:var(--text-1);outline:none;transition:border-color .2s ease,box-shadow .2s ease;}
.sub-input::placeholder{color:var(--text-3);}
.sub-input:focus{border-color:rgba(22,217,198,.6);box-shadow:0 0 0 3px rgba(22,217,198,.12);}
.foot-bottom{margin-top:46px;border-top:1px solid var(--line);padding:20px 0 26px;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:12px;color:var(--text-3);}

/* roulang page: article */
:root{
  --bg-0:#050A12;
  --bg-1:#0A131F;
  --bg-2:#101C2B;
  --line:rgba(120,190,220,.14);
  --line-strong:rgba(120,190,220,.28);
  --primary:#16D9C6;
  --primary-deep:#0C8C84;
  --accent:#FF6A3D;
  --text-1:#EAF3F8;
  --text-2:#9DB0C4;
  --text-3:#6B7F94;
  --radius-card:18px;
  --radius-img:14px;
  --radius-btn:999px;
  --radius-input:12px;
  --shadow-card:0 18px 40px -20px rgba(0,0,0,.55);
  --shadow-glow:0 12px 30px -8px rgba(255,106,61,.45);
  --ease:180ms ease-out;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  min-height:100%;
  color:var(--text-1);
  font-family:system-ui,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  background-color:var(--bg-0);
  background-image:
    radial-gradient(circle at 12% 6%,rgba(22,217,198,.055),transparent 42%),
    radial-gradient(circle at 88% 0%,rgba(255,106,61,.045),transparent 38%),
    linear-gradient(rgba(120,190,220,.032) 1px,transparent 1px),
    linear-gradient(90deg,rgba(120,190,220,.032) 1px,transparent 1px);
  background-size:auto,auto,46px 46px,46px 46px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--text-2);text-decoration:none;transition:color var(--ease),border-color var(--ease),background var(--ease)}
a:hover{color:var(--primary)}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;letter-spacing:.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
.num{font-variant-numeric:tabular-nums}
::selection{background:rgba(22,217,198,.28);color:#fff}

.shell{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:640px){.shell{padding:0 24px}}
@media (min-width:1280px){.shell{max-width:1280px;padding:0 32px}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(5,10,18,.72);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid transparent;
  transition:background var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.site-header.is-stuck{background:rgba(5,10,18,.94);border-bottom-color:var(--line);box-shadow:0 12px 30px -24px rgba(0,0,0,.9)}
.nav-row{display:flex;align-items:center;gap:18px;height:56px}
@media (min-width:1024px){.nav-row{height:64px;gap:26px}}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--text-1);flex:0 0 auto}
.brand:hover{color:var(--text-1)}
.brand-mark{width:38px;height:38px;flex:0 0 auto}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-size:15px;font-weight:800;letter-spacing:.01em}
.brand-sub{font-size:9px;letter-spacing:.16em;color:var(--text-3);text-transform:uppercase}
.nav-links{display:none}
.nav-side{display:none}
@media (min-width:1024px){
  .nav-links{display:flex;align-items:center;gap:24px;margin-left:6px}
  .nav-links a{position:relative;font-size:14px;color:var(--text-2);padding:6px 0;white-space:nowrap}
  .nav-links a::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--primary),var(--primary-deep));transform:scaleX(0);transform-origin:left;transition:transform var(--ease)}
  .nav-links a:hover{color:var(--text-1)}
  .nav-links a:hover::after,.nav-links a.active::after{transform:scaleX(1)}
  .nav-links a.active{color:var(--primary)}
  .nav-side{display:flex;align-items:center;gap:14px;margin-left:auto}
}
.nav-search{display:flex;align-items:center;gap:8px;height:38px;padding:0 14px;border:1px solid var(--line);border-radius:var(--radius-input);background:rgba(255,255,255,.04);color:var(--text-3)}
.nav-search input{width:132px;border:0;outline:0;background:transparent;color:var(--text-1);font-size:13px}
.nav-search input::placeholder{color:var(--text-3)}
.nav-search:focus-within{border-color:rgba(22,217,198,.6);box-shadow:0 0 0 3px rgba(22,217,198,.12)}
.burger{display:inline-flex;flex-direction:column;justify-content:center;gap:5px;width:42px;height:38px;margin-left:auto;padding:0 10px;border:1px solid var(--line);border-radius:10px;background:rgba(255,255,255,.04);cursor:pointer}
.burger span{display:block;height:2px;border-radius:2px;background:var(--text-1);transition:transform var(--ease),opacity var(--ease)}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
@media (min-width:1024px){.burger{display:none}}

.drawer{position:fixed;top:0;right:0;z-index:80;width:min(86vw,340px);height:100%;padding:76px 22px 28px;background:linear-gradient(180deg,rgba(16,28,43,.98),rgba(5,10,18,.98));border-left:1px solid var(--line);transform:translateX(102%);transition:transform 220ms ease-out;display:flex;flex-direction:column;gap:6px}
.drawer.open{transform:translateX(0)}
.drawer a{display:block;padding:13px 4px;border-bottom:1px solid var(--line);font-size:15px;color:var(--text-1)}
.drawer a.active{color:var(--primary)}
.drawer .drawer-cta{margin-top:auto;border-bottom:0}
.drawer-close{position:absolute;top:18px;right:18px;width:36px;height:36px;border:1px solid var(--line);border-radius:10px;background:rgba(255,255,255,.04);color:var(--text-1);cursor:pointer;font-size:18px;line-height:1}
.overlay{position:fixed;inset:0;z-index:70;background:rgba(3,7,12,.66);opacity:0;visibility:hidden;transition:opacity var(--ease),visibility var(--ease)}
.overlay.show{opacity:1;visibility:visible}

/* ---------- buttons / badges ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 22px;border:1px solid transparent;border-radius:var(--radius-btn);font-size:15px;font-weight:700;cursor:pointer;transition:transform var(--ease),box-shadow var(--ease),background var(--ease),color var(--ease),border-color var(--ease)}
.btn-sm{height:38px;padding:0 16px;font-size:13.5px}
.btn-primary{background:linear-gradient(135deg,var(--accent),#ff8a5f);color:#1B0C05;box-shadow:0 10px 24px -14px rgba(255,106,61,.6)}
.btn-primary:hover{color:#1B0C05;filter:brightness(1.08);box-shadow:var(--shadow-glow)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:rgba(255,255,255,.05);border-color:var(--line-strong);color:var(--text-1)}
.btn-ghost:hover{color:var(--primary);border-color:rgba(22,217,198,.55);background:rgba(22,217,198,.08)}
.btn-link{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-weight:600;font-size:14px}
.btn-link:hover{color:var(--primary);text-decoration:underline;text-underline-offset:4px}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}

.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:8px;font-size:12px;font-weight:600;letter-spacing:.06em;border:1px solid var(--line-strong);background:rgba(255,255,255,.05);color:var(--text-2)}
.badge-cat{color:var(--primary);border-color:rgba(22,217,198,.4);background:rgba(22,217,198,.1)}
.tag{display:inline-flex;align-items:center;padding:6px 13px;border-radius:8px;border:1px solid var(--line);background:rgba(255,255,255,.04);font-size:13px;color:var(--text-2);transition:border-color var(--ease),color var(--ease),background var(--ease)}
.tag:hover{border-color:rgba(22,217,198,.5);color:var(--primary);background:rgba(22,217,198,.08)}

/* ---------- article hero ---------- */
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);padding:22px 0 0}
.crumb a{color:var(--text-2)}
.crumb a:hover{color:var(--primary)}
.crumb .sep{color:var(--text-3);opacity:.7}
.crumb .now{max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--text-2)}
@media (max-width:520px){.crumb .now{max-width:20ch}}

.article-hero{position:relative;padding:22px 0 34px;border-bottom:1px solid var(--line)}
.article-hero::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;background:linear-gradient(90deg,rgba(22,217,198,.5),transparent 60%)}
.article-title{margin:16px 0 14px;font-size:30px;font-weight:800;line-height:1.3;max-width:20ch}
@media (min-width:768px){.article-title{font-size:40px}}
@media (min-width:1280px){.article-title{font-size:44px}}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:8px 14px;font-size:13px;color:var(--text-3)}
.meta-row .dot{opacity:.6}
.meta-row strong{color:var(--text-2);font-weight:600}
.lead-block{position:relative;margin-top:24px;padding:18px 20px 18px 22px;border-radius:0 14px 14px 0;background:linear-gradient(90deg,rgba(255,255,255,.06),rgba(255,255,255,.02));border-left:3px solid var(--primary);color:var(--text-2);font-size:15.5px;line-height:1.8}
.hero-side-nav{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.hero-side-nav a{font-size:13.5px;padding:7px 14px;border:1px solid var(--line);border-radius:var(--radius-btn);color:var(--text-2)}
.hero-side-nav a:hover{border-color:rgba(22,217,198,.5);color:var(--primary);background:rgba(22,217,198,.08)}

/* ---------- reading layout ---------- */
.read-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:36px;padding:40px 0 0}
@media (min-width:1024px){
  .read-layout{grid-template-columns:minmax(0,1fr) 320px;gap:44px;padding:56px 0 0}
}
.article-main{min-width:0}
.article-card{padding:22px 20px;border:1px solid var(--line);border-radius:var(--radius-card);background:linear-gradient(180deg,rgba(255,255,255,.045),rgba(255,255,255,.012));box-shadow:var(--shadow-card)}
@media (min-width:768px){.article-card{padding:34px 34px 38px}}
.article-card + .article-card{margin-top:26px}

.article-body{max-width:820px;font-size:17px;line-height:1.85;color:var(--text-1);word-wrap:break-word;overflow-wrap:break-word}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 20px}
.article-body h2{position:relative;margin:34px 0 16px;padding-left:14px;font-size:24px;line-height:1.4}
.article-body h2::before{content:"";position:absolute;left:0;top:.26em;bottom:.26em;width:4px;border-radius:3px;background:linear-gradient(180deg,var(--primary),var(--primary-deep))}
.article-body h3{margin:26px 0 12px;font-size:18px;color:var(--text-1)}
.article-body h4{margin:20px 0 10px;font-size:16px;color:var(--text-2)}
.article-body a{color:var(--primary);border-bottom:1px solid rgba(22,217,198,.4)}
.article-body a:hover{border-bottom-color:var(--primary)}
.article-body strong{color:#fff}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:1.2em}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin:7px 0}
.article-body li::marker{color:var(--primary)}
.article-body img{margin:24px auto;border-radius:var(--radius-img);border:1px solid var(--line);box-shadow:0 22px 44px -26px rgba(0,0,0,.85)}
.article-body figure{margin:26px 0}
.article-body figcaption{margin-top:10px;text-align:center;font-size:13px;color:var(--text-3)}
.article-body blockquote{margin:26px 0;padding:18px 22px;border-left:3px solid var(--primary);border-radius:0 14px 14px 0;background:linear-gradient(90deg,rgba(255,255,255,.07),rgba(255,255,255,.02));backdrop-filter:blur(14px) saturate(140%);-webkit-backdrop-filter:blur(14px) saturate(140%);color:var(--text-2)}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body table{width:100%;border-collapse:collapse;margin:22px 0;font-size:15px;display:block;overflow-x:auto;-webkit-overflow-scrolling:touch}
.article-body thead th{background:rgba(255,255,255,.05);color:var(--text-2);font-weight:700;text-align:left;white-space:nowrap}
.article-body th,.article-body td{padding:12px 14px;border:1px solid var(--line);min-width:110px;vertical-align:top}
.article-body tbody tr:nth-child(even) td{background:rgba(255,255,255,.02)}
.article-body pre{margin:22px 0;padding:16px 18px;border:1px solid var(--line);border-radius:12px;background:var(--bg-1);overflow-x:auto;font-size:14px;line-height:1.7}
.article-body code{padding:2px 6px;border-radius:6px;background:rgba(22,217,198,.12);color:#8FF5E9;font-size:.92em}
.article-body pre code{padding:0;background:transparent;color:var(--text-1)}
.article-body hr{margin:34px 0;border:0;height:1px;background:var(--line)}
.article-body iframe,.article-body video{width:100%;max-width:100%;border-radius:var(--radius-img);border:1px solid var(--line)}

/* ---------- sidebar ---------- */
.article-side{min-width:0;display:flex;flex-direction:column;gap:20px}
@media (min-width:1024px){
  .article-side{position:sticky;top:92px;align-self:start}
}
.side-card{padding:20px;border:1px solid var(--line);border-radius:var(--radius-card);background:linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.012));box-shadow:var(--shadow-card)}
.side-title{display:flex;align-items:center;gap:8px;margin-bottom:14px;font-size:14px;font-weight:800;letter-spacing:.06em;color:var(--text-2)}
.side-title::before{content:"";width:16px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--primary),transparent)}
.toc-list a{display:flex;align-items:center;gap:10px;padding:9px 0;border-bottom:1px dashed rgba(120,190,220,.12);font-size:14px;color:var(--text-2)}
.toc-list a:last-child{border-bottom:0}
.toc-list a:hover{color:var(--primary)}
.toc-list a i{width:6px;height:6px;border-radius:50%;background:var(--primary);opacity:.6}
.mini-item{display:flex;gap:12px;padding:12px 0;border-bottom:1px dashed rgba(120,190,220,.12)}
.mini-item:last-child{border-bottom:0}
.mini-item img{width:74px;height:56px;object-fit:cover;border-radius:10px;border:1px solid var(--line);flex:0 0 auto}
.mini-item h4{margin:0 0 6px;font-size:14px;font-weight:700;line-height:1.5;color:var(--text-1)}
.mini-item .mini-time{font-size:12px;color:var(--text-3)}
.mini-item:hover h4{color:var(--primary)}
.side-join{background:linear-gradient(160deg,rgba(22,217,198,.14),rgba(255,106,61,.08));border-color:rgba(22,217,198,.28)}
.side-join p{font-size:13.5px;color:var(--text-2);margin:8px 0 16px}
.side-join .btn{width:100%}

/* ---------- bottom blocks ---------- */
.sec-block{padding:52px 0 0}
@media (min-width:1024px){.sec-block{padding:76px 0 0}}
.sec-head{margin-bottom:22px}
.sec-head h2{font-size:24px}
@media (min-width:768px){.sec-head h2{font-size:28px}}
.sec-head p{margin-top:8px;font-size:14.5px;color:var(--text-2);max-width:62ch}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:6px}
.dual-grid{display:grid;gap:18px;grid-template-columns:1fr}
@media (min-width:768px){.dual-grid{grid-template-columns:1fr 1fr}}
.nav-card{display:flex;align-items:center;gap:16px;padding:18px;border:1px solid var(--line);border-radius:var(--radius-card);background:linear-gradient(180deg,rgba(255,255,255,.045),rgba(255,255,255,.012));position:relative;overflow:hidden;transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease)}
.nav-card::before{content:"";position:absolute;left:0;right:0;top:0;height:2px;background:linear-gradient(90deg,var(--primary),var(--accent));opacity:0;transition:opacity var(--ease)}
.nav-card:hover{transform:translateY(-4px);border-color:rgba(22,217,198,.32);box-shadow:var(--shadow-card);color:var(--text-1)}
.nav-card:hover::before{opacity:1}
.nav-card img{width:92px;height:70px;object-fit:cover;border-radius:12px;border:1px solid var(--line);flex:0 0 auto}
.nav-card .nav-dir{font-size:12px;color:var(--text-3);letter-spacing:.08em}
.nav-card h3{margin:6px 0 6px;font-size:17px;color:var(--text-1)}
.nav-card p{font-size:13.5px;color:var(--text-2)}
@media (max-width:520px){.nav-card img{width:72px;height:60px}}

.rel-grid{display:grid;gap:18px;grid-template-columns:1fr}
@media (min-width:640px){.rel-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.rel-grid{grid-template-columns:repeat(3,1fr)}}
.rel-card{border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;background:linear-gradient(180deg,rgba(255,255,255,.045),rgba(255,255,255,.012));transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease)}
.rel-card:hover{transform:translateY(-4px);border-color:rgba(22,217,198,.32);box-shadow:var(--shadow-card)}
.rel-card .rel-cover{position:relative;aspect-ratio:16/9;overflow:hidden}
.rel-card .rel-cover img{width:100%;height:100%;object-fit:cover}
.rel-card .rel-cover::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,10,18,.06),rgba(5,10,18,.72))}
.rel-card .rel-body{padding:16px 18px 18px}
.rel-card h3{font-size:16px;color:var(--text-1);margin-bottom:8px}
.rel-card p{font-size:13.5px;color:var(--text-2)}
.rel-card .rel-foot{display:flex;align-items:center;justify-content:space-between;margin-top:14px;font-size:12.5px;color:var(--text-3)}
.arrow-link{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-size:13.5px;font-weight:600}
.rel-card:hover .arrow-link svg{transform:translateX(3px)}
.arrow-link svg{transition:transform var(--ease)}

.empty-state{text-align:center;padding:48px 20px;border:1px dashed var(--line-strong);border-radius:var(--radius-card);background:rgba(255,255,255,.03)}
.empty-state .empty-icon{width:52px;height:52px;margin:0 auto 16px;border-radius:16px;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;color:var(--primary);background:rgba(22,217,198,.08)}
.empty-state h3{font-size:18px;margin-bottom:8px}
.empty-state p{font-size:14px;color:var(--text-2);margin-bottom:18px}

.cta-glass{position:relative;margin:64px 0 0;padding:34px 24px;border:1px solid rgba(22,217,198,.24);border-radius:24px;background:linear-gradient(135deg,rgba(22,217,198,.14),rgba(255,106,61,.09) 55%,rgba(255,255,255,.02));box-shadow:0 24px 60px -34px rgba(0,0,0,.9);overflow:hidden}
@media (min-width:768px){.cta-glass{padding:44px 44px}}
.cta-glass::before{content:"";position:absolute;left:0;right:0;top:0;height:3px;background:linear-gradient(90deg,var(--primary),var(--accent))}
.cta-inner{display:grid;gap:26px;grid-template-columns:1fr}
@media (min-width:1024px){.cta-inner{grid-template-columns:1.2fr 1fr;align-items:center}}
.cta-glass h2{font-size:24px;margin-bottom:12px}
@media (min-width:768px){.cta-glass h2{font-size:30px}}
.cta-glass .cta-sub{font-size:15px;color:var(--text-2);max-width:56ch}
.cta-points{display:grid;gap:10px;margin:18px 0 22px}
.cta-points li{display:flex;align-items:flex-start;gap:10px;font-size:14.5px;color:var(--text-2)}
.cta-points b{color:var(--text-1);font-weight:700}
.cta-points .tick{flex:0 0 auto;width:20px;height:20px;border-radius:6px;display:flex;align-items:center;justify-content:center;background:rgba(22,217,198,.16);color:var(--primary);margin-top:2px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.dark-panel{position:relative;padding:24px;border:1px solid var(--line);border-radius:var(--radius-card);background:linear-gradient(120deg,rgba(16,28,43,.9),rgba(10,19,31,.75));overflow:hidden}
.dark-panel img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.4}
.dark-panel::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,var(--bg-1) 12%,rgba(10,19,31,.35))}
.dark-panel .dp-inner{position:relative;z-index:2}
.dark-panel .dp-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 0;border-bottom:1px dashed rgba(120,190,220,.16);font-size:14px;color:var(--text-2)}
.dark-panel .dp-row:last-child{border-bottom:0}
.dark-panel .dp-row b{color:var(--text-1);font-weight:700}
.dark-panel .dp-lead{font-size:13px;color:var(--text-3);letter-spacing:.08em;margin-bottom:6px}

/* ---------- footer ---------- */
.site-footer{margin-top:72px;border-top:1px solid var(--line);background:linear-gradient(180deg,rgba(10,19,31,.7),rgba(5,10,18,.95))}
.foot-grid{display:grid;gap:32px;grid-template-columns:1fr;padding:48px 0 34px}
@media (min-width:640px){.foot-grid{grid-template-columns:1fr 1fr}}
@media (min-width:1024px){.foot-grid{grid-template-columns:1.3fr 1fr 1fr 1.2fr;gap:38px}}
.foot-title{font-size:13px;font-weight:800;letter-spacing:.1em;color:var(--text-2);margin-bottom:14px}
.foot-list{display:grid;gap:10px}
.foot-list a{font-size:14px;color:var(--text-2)}
.foot-list a:hover{color:var(--primary)}
.sub-form{display:flex;gap:10px;margin-top:14px}
.sub-input{width:100%;height:44px;padding:0 14px;border:1px solid var(--line);border-radius:var(--radius-input);background:rgba(255,255,255,.04);color:var(--text-1);font-size:14px;outline:0;transition:border-color var(--ease),box-shadow var(--ease)}
.sub-input::placeholder{color:var(--text-3)}
.sub-input:focus{border-color:rgba(22,217,198,.6);box-shadow:0 0 0 3px rgba(22,217,198,.12)}
.foot-bottom{display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;padding:18px 0 26px;border-top:1px solid var(--line);font-size:13px;color:var(--text-3)}
@media (max-width:640px){
  .foot-bottom{flex-direction:column;align-items:flex-start}
  .article-title{font-size:27px}
}

/* roulang page: category1 */
:root{
  --bg-0:#050A12;
  --bg-1:#0A131F;
  --bg-2:#101C2B;
  --line:rgba(120,190,220,.14);
  --primary:#16D9C6;
  --primary-deep:#0C8C84;
  --accent:#FF6A3D;
  --text-1:#EAF3F8;
  --text-2:#9DB0C4;
  --text-3:#6B7F94;
  --r-card:18px;
  --r-img:14px;
  --r-badge:8px;
  --r-input:12px;
  --shadow:0 18px 40px -20px rgba(0,0,0,.55);
  --shell:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:system-ui,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text-1);
  background-color:var(--bg-0);
  background-image:
    repeating-linear-gradient(118deg,rgba(22,217,198,.028) 0 1px,transparent 1px 38px),
    repeating-linear-gradient(28deg,rgba(120,190,220,.022) 0 1px,transparent 1px 52px);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--text-2);text-decoration:none;transition:color .18s ease-out,text-underline-offset .18s ease-out;}
a:hover{color:var(--primary);text-underline-offset:4px;}
button,input{font-family:inherit;}
ul,ol{margin:0;padding:0;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px;}
.num{font-variant-numeric:tabular-nums;}

.shell{width:100%;max-width:var(--shell);margin:0 auto;padding-left:20px;padding-right:20px;}
@media (min-width:640px){.shell{padding-left:24px;padding-right:24px;}}
@media (min-width:1024px){.shell{padding-left:32px;padding-right:32px;}}
@media (min-width:1280px){:root{--shell:1280px;}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(5,10,18,.74);
  backdrop-filter:blur(12px) saturate(140%);
  -webkit-backdrop-filter:blur(12px) saturate(140%);
  border-bottom:1px solid transparent;
  transition:background .22s ease-out,border-color .22s ease-out;
}
.site-header.scrolled{background:rgba(5,10,18,.95);border-bottom-color:var(--line);}
.nav-row{display:flex;align-items:center;gap:18px;height:64px;}
.brand{display:flex;align-items:center;gap:10px;flex:none;}
.brand-mark{width:38px;height:38px;flex:none;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:15px;font-weight:700;color:var(--text-1);letter-spacing:.01em;}
.brand-sub{font-size:10px;letter-spacing:.14em;color:var(--text-3);}
.nav-links{display:none;align-items:center;gap:26px;margin-left:26px;}
.nav-links a{position:relative;font-size:14.5px;color:var(--text-2);padding:6px 0;}
.nav-links a:hover{color:var(--primary);}
.nav-links a.active{color:var(--text-1);font-weight:600;}
.nav-links a.active::after{content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;border-radius:2px;background:var(--primary);}
.nav-side{display:flex;align-items:center;gap:12px;margin-left:auto;}
.nav-search{display:none;align-items:center;gap:8px;height:38px;padding:0 12px;background:var(--bg-1);border:1px solid var(--line);border-radius:var(--r-input);color:var(--text-3);transition:border-color .18s ease-out,box-shadow .18s ease-out;}
.nav-search:focus-within{border-color:rgba(22,217,198,.55);box-shadow:0 0 0 4px rgba(22,217,198,.1);}
.nav-search input{width:132px;border:0;outline:none;background:transparent;color:var(--text-1);font-size:13px;}
.nav-search input::placeholder{color:var(--text-3);}
.burger{display:flex;flex-direction:column;gap:5px;padding:9px;border:0;background:none;cursor:pointer;}
.burger span{display:block;width:22px;height:2px;border-radius:2px;background:var(--text-1);transition:transform .2s ease-out,opacity .2s ease-out;}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0;}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
@media (min-width:1024px){
  .nav-links{display:flex;}
  .nav-search{display:flex;}
  .burger{display:none;}
}
@media (max-width:1023px){
  .nav-side .btn{display:none;}
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border:1px solid transparent;border-radius:999px;
  font-size:14px;font-weight:700;cursor:pointer;text-decoration:none;
  transition:transform .18s ease-out,box-shadow .18s ease-out,background .18s ease-out,border-color .18s ease-out,color .18s ease-out;
}
.btn-primary{background:linear-gradient(135deg,#FF8A5C,#FF6A3D);color:#200C03;font-weight:800;}
.btn-primary:hover{color:#200C03;filter:brightness(1.08);box-shadow:0 12px 30px -8px rgba(255,106,61,.45);transform:translateY(-2px);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:rgba(255,255,255,.04);border-color:var(--line);color:var(--text-1);}
.btn-ghost:hover{color:var(--primary);border-color:rgba(22,217,198,.4);background:rgba(22,217,198,.06);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{height:36px;padding:0 16px;font-size:13px;}
.btn-lg{height:52px;padding:0 28px;font-size:16px;}

/* ---------- drawer ---------- */
.drawer{position:fixed;inset:0;z-index:90;background:rgba(4,8,14,.62);opacity:0;pointer-events:none;transition:opacity .24s ease-out;}
.drawer.open{opacity:1;pointer-events:auto;}
.drawer-panel{
  position:absolute;top:0;right:0;bottom:0;width:min(86vw,340px);
  display:flex;flex-direction:column;gap:4px;padding:22px;
  background:var(--bg-1);border-left:1px solid var(--line);
  transform:translateX(100%);transition:transform .26s ease-out;overflow-y:auto;
}
.drawer.open .drawer-panel{transform:none;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;}
.drawer-title{font-size:13px;letter-spacing:.08em;color:var(--text-3);font-weight:700;}
.drawer-close{border:1px solid var(--line);background:transparent;color:var(--text-2);width:34px;height:34px;border-radius:10px;cursor:pointer;font-size:16px;line-height:1;}
.drawer-close:hover{color:var(--primary);border-color:rgba(22,217,198,.4);}
.drawer-panel a.drawer-link{padding:13px 4px;font-size:15px;color:var(--text-2);border-bottom:1px solid var(--line);}
.drawer-panel a.drawer-link.active{color:var(--primary);font-weight:700;}
.drawer-cta{margin-top:20px;}

/* ---------- hero ---------- */
.page-hero{position:relative;overflow:hidden;padding:118px 0 68px;border-bottom:1px solid var(--line);}
.page-hero .hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.46;}
.page-hero .hero-veil{position:absolute;inset:0;background:linear-gradient(100deg,rgba(5,10,18,.97) 0%,rgba(5,10,18,.9) 42%,rgba(5,10,18,.5) 100%);}
.page-hero .hero-inner{position:relative;z-index:2;max-width:860px;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin:0 0 18px;}
.crumb a{color:var(--text-3);}
.crumb a:hover{color:var(--primary);}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 10px;border-radius:var(--r-badge);
  font-size:12px;letter-spacing:.08em;font-weight:700;
  color:var(--primary);background:rgba(22,217,198,.08);border:1px solid rgba(22,217,198,.3);
}
.badge-accent{color:#FFB39B;background:rgba(255,106,61,.1);border-color:rgba(255,106,61,.34);}
h1{font-size:30px;line-height:1.28;font-weight:800;letter-spacing:-.01em;margin:18px 0 0;color:#fff;}
.page-hero p.lead{margin:16px 0 0;font-size:16px;line-height:1.85;color:var(--text-2);max-width:740px;}
.hero-facts{display:flex;flex-wrap:wrap;gap:12px 30px;margin-top:26px;padding-top:22px;border-top:1px solid var(--line);}
.hero-fact{display:flex;flex-direction:column;gap:2px;}
.hero-fact b{font-size:22px;font-weight:800;color:var(--text-1);font-variant-numeric:tabular-nums;line-height:1.2;}
.hero-fact span{font-size:13px;color:var(--text-3);}
@media (min-width:640px){h1{font-size:40px;}}
@media (min-width:1024px){h1{font-size:46px;}.page-hero{padding:132px 0 78px;}}

/* ---------- sections ---------- */
.section{padding:56px 0;}
@media (min-width:1024px){.section{padding:96px 0;}}
.section-head{max-width:760px;margin-bottom:34px;}
.section-head h2{font-size:24px;line-height:1.35;font-weight:800;margin:12px 0 0;color:#fff;letter-spacing:-.01em;}
.section-head p{margin:14px 0 0;color:var(--text-2);font-size:15.5px;line-height:1.85;}
@media (min-width:640px){.section-head h2{font-size:28px;}}
@media (min-width:1024px){.section-head h2{font-size:32px;}.section-head{margin-bottom:44px;}}
.divider{height:1px;background:var(--line);border:0;margin:0;}

/* ---------- path layout ---------- */
.path-grid{display:grid;gap:32px;}
@media (min-width:1024px){.path-grid{grid-template-columns:250px minmax(0,1fr);gap:48px;}}
.toc{background:var(--bg-1);border:1px solid var(--line);border-radius:var(--r-card);padding:18px;}
.toc-title{font-size:12px;letter-spacing:.08em;font-weight:700;color:var(--text-3);padding:0 10px 12px;border-bottom:1px solid var(--line);margin-bottom:10px;}
.toc a{display:block;font-size:13.5px;line-height:1.6;padding:9px 10px;border-left:2px solid transparent;border-radius:0 8px 8px 0;}
.toc a:hover{color:var(--primary);background:rgba(22,217,198,.05);}
.toc a.active{color:var(--text-1);font-weight:600;border-left-color:var(--primary);background:linear-gradient(90deg,rgba(22,217,198,.12),rgba(22,217,198,0));}
@media (min-width:1024px){.toc{background:transparent;border:0;padding:0;}.toc-inner{position:sticky;top:92px;}}

.path-list{display:flex;flex-direction:column;gap:20px;}
.entry-card{
  position:relative;overflow:hidden;
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px 22px;box-shadow:var(--shadow);
  transition:transform .2s ease-out,border-color .2s ease-out;
  scroll-margin-top:96px;
}
.entry-card::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--primary),rgba(22,217,198,0));opacity:0;transition:opacity .2s ease-out;}
.entry-card:hover{transform:translateY(-4px);border-color:rgba(22,217,198,.3);}
.entry-card:hover::before{opacity:1;}
.entry-head{display:flex;gap:14px;align-items:baseline;}
.entry-no{font-size:24px;font-weight:800;color:var(--primary);line-height:1.1;font-variant-numeric:tabular-nums;letter-spacing:-.02em;flex:none;}
.entry-title{font-size:18px;font-weight:700;margin:0;color:var(--text-1);line-height:1.45;}
.entry-card p{margin:12px 0 0;font-size:15.5px;line-height:1.85;color:var(--text-2);}
.points{list-style:none;margin:16px 0 0;display:grid;gap:9px;}
.points li{position:relative;padding-left:22px;font-size:14.5px;line-height:1.75;color:var(--text-2);}
.points li::before{content:"";position:absolute;left:1px;top:8px;width:8px;height:8px;border-radius:2px;background:linear-gradient(135deg,var(--primary),var(--primary-deep));}
@media (min-width:640px){.entry-card{padding:28px 30px;}.entry-title{font-size:19px;}.entry-no{font-size:28px;}}

/* ---------- checklist block ---------- */
.check-grid{display:grid;gap:32px;align-items:center;}
@media (min-width:1024px){.check-grid{grid-template-columns:1.05fr .95fr;gap:56px;}}
.check-cards{display:grid;gap:16px;margin-top:26px;}
.check-card{display:flex;gap:14px;background:var(--bg-1);border:1px solid var(--line);border-radius:var(--r-card);padding:18px 20px;transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;}
.check-card:hover{transform:translateY(-4px);border-color:rgba(22,217,198,.3);box-shadow:var(--shadow);}
.check-ico{flex:none;width:38px;height:38px;border-radius:11px;display:grid;place-items:center;background:rgba(22,217,198,.1);border:1px solid rgba(22,217,198,.28);color:var(--primary);}
.check-card h3{margin:0;font-size:16px;font-weight:700;color:var(--text-1);}
.check-card p{margin:6px 0 0;font-size:14.5px;line-height:1.75;color:var(--text-2);}
.figure{position:relative;border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow);}
.figure img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/11;}
.figure::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,10,18,.05),rgba(5,10,18,.55));}
.figure figcaption{position:relative;z-index:2;margin-top:-46px;padding:0 16px 14px;font-size:13px;color:var(--text-2);}
.figure .figure-tag{position:absolute;z-index:2;left:16px;top:16px;}

/* ---------- FAQ ---------- */
.glass{
  background:linear-gradient(180deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08),var(--shadow);
}
.faq-wrap{padding:8px 22px;}
@media (min-width:640px){.faq-wrap{padding:12px 30px;}}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:last-child{border-bottom:0;}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 0;font-size:16px;font-weight:700;color:var(--text-1);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--primary);}
.faq-ico{flex:none;position:relative;width:26px;height:26px;border-radius:8px;border:1px solid var(--line);background:rgba(255,255,255,.03);transition:transform .22s ease-out,border-color .22s ease-out;}
.faq-ico::before,.faq-ico::after{content:"";position:absolute;left:50%;top:50%;background:var(--primary);border-radius:2px;transform:translate(-50%,-50%);}
.faq-ico::before{width:11px;height:2px;}
.faq-ico::after{width:2px;height:11px;transition:opacity .22s ease-out;}
.faq-item[open] .faq-ico{transform:rotate(180deg);border-color:rgba(22,217,198,.4);}
.faq-item[open] .faq-ico::after{opacity:0;}
.faq-a{padding:0 40px 20px 0;font-size:15px;line-height:1.8;color:var(--text-2);}

/* ---------- CTA ---------- */
.cta-block{position:relative;overflow:hidden;border-radius:24px;border:1px solid var(--line);padding:38px 24px;text-align:center;box-shadow:var(--shadow);}
.cta-block .cta-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.32;}
.cta-block .cta-veil{position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,10,18,.86),rgba(5,10,18,.95));}
.cta-inner{position:relative;z-index:2;max-width:720px;margin:0 auto;}
.cta-inner h2{margin:0;font-size:24px;font-weight:800;color:#fff;line-height:1.35;}
.cta-inner p{margin:14px 0 0;color:var(--text-2);font-size:15.5px;line-height:1.85;}
.cta-points{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin:22px 0 0;}
.cta-points span{font-size:13px;color:var(--text-2);border:1px solid var(--line);background:rgba(255,255,255,.04);border-radius:999px;padding:6px 14px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;align-items:center;margin-top:26px;}
.cta-note{margin-top:16px;font-size:13px;color:var(--text-3);}
@media (min-width:640px){.cta-block{padding:54px 40px;}.cta-inner h2{font-size:30px;}}

/* ---------- footer ---------- */
.site-footer{margin-top:72px;padding-top:56px;background:var(--bg-1);border-top:1px solid var(--line);}
.foot-grid{display:grid;gap:34px;}
@media (min-width:768px){.foot-grid{grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:30px;}}
.foot-title{font-size:12px;letter-spacing:.08em;font-weight:700;color:var(--text-3);margin-bottom:14px;}
.foot-list{display:flex;flex-direction:column;gap:10px;}
.foot-list a{font-size:14px;color:var(--text-2);}
.foot-list a:hover{color:var(--primary);text-decoration:underline;text-underline-offset:3px;}
.sub-form{display:flex;gap:8px;margin-top:16px;}
.sub-input{
  width:100%;height:44px;padding:0 14px;border-radius:var(--r-input);
  border:1px solid var(--line);background:var(--bg-2);color:var(--text-1);font-size:14px;outline:none;
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.sub-input::placeholder{color:var(--text-3);}
.sub-input:focus{border-color:rgba(22,217,198,.6);box-shadow:0 0 0 4px rgba(22,217,198,.1);}
.foot-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;align-items:center;
  margin-top:44px;padding:20px 0;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category2 */
:root{
  --bg-0:#050A12;
  --bg-1:#0A131F;
  --bg-2:#101C2B;
  --line:rgba(120,190,220,.14);
  --primary:#16D9C6;
  --primary-deep:#0C8C84;
  --accent:#FF6A3D;
  --text-1:#EAF3F8;
  --text-2:#9DB0C4;
  --text-3:#6B7F94;
  --radius:18px;
  --radius-img:14px;
  --shadow:0 18px 40px -20px rgba(0,0,0,.55);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:
    radial-gradient(900px 520px at 88% -6%, rgba(22,217,198,.07), transparent 62%),
    radial-gradient(760px 460px at 4% 8%, rgba(255,106,61,.05), transparent 60%),
    var(--bg-0);
  color:var(--text-1);
  font-family:system-ui,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
h1,h2,h3,h4,p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}

/* ---------- 容器 ---------- */
.shell{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:640px){.shell{padding:0 24px}}
@media (min-width:1024px){.shell{padding:0 32px}}
@media (min-width:1280px){.shell{max-width:1280px}}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(5,10,18,.74);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid transparent;
  transition:background .22s var(--ease),border-color .22s var(--ease);
}
.site-header.is-scrolled{background:rgba(5,10,18,.95);border-bottom-color:var(--line)}
.nav-row{display:flex;align-items:center;gap:18px;height:56px}
@media (min-width:1024px){.nav-row{height:64px;gap:22px}}

.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{width:34px;height:34px;flex:0 0 auto}
@media (min-width:1024px){.brand-mark{width:38px;height:38px}}
.brand-text{display:flex;flex-direction:column;line-height:1.14}
.brand-name{font-size:14px;font-weight:700;letter-spacing:.01em;white-space:nowrap}
.brand-sub{font-size:9px;letter-spacing:.16em;color:var(--text-3);white-space:nowrap}
@media (min-width:1024px){
  .brand-name{font-size:15px}
  .brand-sub{font-size:10px}
}

.nav-links{display:none}
@media (min-width:1024px){
  .nav-links{display:flex;align-items:center;gap:26px;margin-left:10px}
  .nav-links a{
    position:relative;font-size:14px;color:var(--text-2);padding:6px 0;
    transition:color .18s var(--ease);white-space:nowrap;
  }
  .nav-links a:hover{color:var(--primary)}
  .nav-links a::after{
    content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
    background:linear-gradient(90deg,var(--primary),var(--primary-deep));
    transform:scaleX(0);transform-origin:left;transition:transform .2s var(--ease);
  }
  .nav-links a.active{color:var(--text-1);font-weight:600}
  .nav-links a.active::after{transform:scaleX(1)}
}

.nav-side{display:flex;align-items:center;gap:10px;margin-left:auto}
.nav-search{display:none}
@media (min-width:1024px){
  .nav-search{
    display:flex;align-items:center;gap:8px;height:38px;padding:0 12px;
    border:1px solid var(--line);border-radius:12px;background:var(--bg-1);
    color:var(--text-3);transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
  }
  .nav-search:focus-within{border-color:rgba(22,217,198,.6);box-shadow:0 0 0 3px rgba(22,217,198,.12)}
  .nav-search input{width:150px;background:transparent;border:0;outline:0;font-size:13px;color:var(--text-1)}
  .nav-search input::placeholder{color:var(--text-3)}
}
@media (max-width:519px){
  .nav-side .btn{display:none}
}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1px solid transparent;border-radius:999px;font-weight:600;
  cursor:pointer;white-space:nowrap;
  transition:transform .18s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.btn-sm{height:38px;padding:0 18px;font-size:13px}
.btn-lg{height:52px;padding:0 30px;font-size:15px}
.btn-primary{
  background:linear-gradient(180deg,#FF8A61,var(--accent));
  color:#1A0B05;
  box-shadow:0 10px 26px -12px rgba(255,106,61,.6);
}
.btn-primary:hover{filter:brightness(1.08);box-shadow:0 12px 30px -8px rgba(255,106,61,.45)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{
  border-color:var(--line);color:var(--text-1);background:rgba(255,255,255,.03);
}
.btn-ghost:hover{border-color:rgba(22,217,198,.5);color:var(--primary);background:rgba(22,217,198,.07)}
.btn-ghost:active{transform:translateY(1px)}

.burger{
  display:flex;flex-direction:column;justify-content:center;align-items:center;gap:4px;
  width:42px;height:42px;border:1px solid var(--line);border-radius:12px;
  background:rgba(255,255,255,.03);flex:0 0 auto;
}
.burger span{display:block;width:16px;height:2px;border-radius:2px;background:var(--text-1);transition:transform .2s var(--ease),opacity .2s var(--ease)}
.burger.open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.burger.open span:nth-child(2){opacity:0}
.burger.open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
@media (min-width:1024px){.burger{display:none}}

/* ---------- 移动抽屉 ---------- */
.drawer{position:fixed;inset:0;z-index:90;pointer-events:none}
.drawer-mask{position:absolute;inset:0;background:rgba(3,7,12,.68);opacity:0;transition:opacity .26s var(--ease)}
.drawer-panel{
  position:absolute;top:0;right:0;height:100%;width:min(86vw,340px);
  display:flex;flex-direction:column;padding:22px;
  background:var(--bg-1);border-left:1px solid var(--line);
  transform:translateX(100%);transition:transform .28s var(--ease);
}
.drawer.open{pointer-events:auto}
.drawer.open .drawer-mask{opacity:1}
.drawer.open .drawer-panel{transform:translateX(0)}
.drawer-title{font-size:12px;letter-spacing:.08em;color:var(--text-3);margin-bottom:14px}
.drawer-nav{display:flex;flex-direction:column;gap:4px}
.drawer-nav a{
  display:block;padding:13px 14px;border-radius:12px;font-size:15px;color:var(--text-2);
  border:1px solid transparent;transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.drawer-nav a:hover{background:rgba(255,255,255,.04);color:var(--text-1)}
.drawer-nav a.active{background:rgba(22,217,198,.1);border-color:rgba(22,217,198,.35);color:var(--primary);font-weight:600}
.drawer-foot{margin-top:auto;padding-top:20px;border-top:1px solid var(--line)}
.drawer-foot .btn{width:100%}

/* ---------- 分类 Hero ---------- */
.cat-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.cat-hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.4}
.cat-hero::before{
  content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(90deg,rgba(5,10,18,.96) 0%,rgba(5,10,18,.84) 46%,rgba(5,10,18,.5) 100%);
}
.cat-hero::after{
  content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(180deg,rgba(5,10,18,.62) 0%,rgba(5,10,18,0) 36%,rgba(5,10,18,.94) 100%);
}
.cat-hero-inner{position:relative;z-index:2;padding:38px 0 52px}
@media (min-width:1024px){.cat-hero-inner{padding:56px 0 76px}}

.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:18px;flex-wrap:wrap}
.crumbs a{color:var(--text-2);transition:color .18s var(--ease)}
.crumbs a:hover{color:var(--primary)}
.crumbs span.sep{color:var(--text-3)}

.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:999px;
  border:1px solid rgba(22,217,198,.34);background:rgba(22,217,198,.08);
  color:var(--primary);font-size:12px;letter-spacing:.08em;margin-bottom:18px;
}
.hero-h1{font-size:30px;line-height:1.24;font-weight:800;letter-spacing:-.01em;max-width:760px}
@media (min-width:768px){.hero-h1{font-size:38px}}
@media (min-width:1024px){.hero-h1{font-size:46px}}
.hero-lead{margin-top:16px;font-size:16px;color:var(--text-2);max-width:640px}
@media (min-width:1024px){.hero-lead{font-size:17px}}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-stats{display:flex;flex-wrap:wrap;gap:16px 34px;margin-top:34px;padding-top:24px;border-top:1px solid var(--line)}
.stat-num{font-size:24px;font-weight:800;color:var(--text-1);line-height:1.2}
.stat-num em{font-style:normal;color:var(--primary);font-size:15px;margin-left:2px}
.stat-label{font-size:12px;letter-spacing:.06em;color:var(--text-3);margin-top:4px}

/* ---------- 板块 ---------- */
.section{padding:56px 0}
@media (min-width:1024px){.section{padding:96px 0}}
.section-alt{background:linear-gradient(180deg,rgba(10,19,31,.85),rgba(10,19,31,.35));border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{max-width:720px;margin-bottom:32px}
@media (min-width:1024px){.sec-head{margin-bottom:44px}}
.sec-title{font-size:24px;line-height:1.3;font-weight:800;letter-spacing:-.01em}
@media (min-width:768px){.sec-title{font-size:28px}}
@media (min-width:1024px){.sec-title{font-size:34px}}
.sec-desc{margin-top:12px;font-size:15px;color:var(--text-2);max-width:640px}

/* ---------- 分段标签 ---------- */
.filter-bar{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px}
.chip{
  height:38px;padding:0 18px;border-radius:999px;border:1px solid var(--line);
  background:rgba(255,255,255,.03);color:var(--text-2);font-size:13px;
  transition:background .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease),transform .18s var(--ease);
}
.chip:hover{border-color:rgba(22,217,198,.4);color:var(--text-1)}
.chip:active{transform:translateY(1px)}
.chip.active{background:rgba(22,217,198,.13);border-color:rgba(22,217,198,.55);color:var(--primary);font-weight:600}
.filter-note{font-size:13px;color:var(--text-3);margin-bottom:20px}

/* ---------- 瀑布卡片 ---------- */
.falls{column-count:1;column-gap:22px}
@media (min-width:640px){.falls{column-count:2;column-gap:24px}}
.lv-card{
  display:block;break-inside:avoid;margin:0 0 22px;
  background:linear-gradient(180deg,var(--bg-2),rgba(10,19,31,.9));
  border:1px solid var(--line);border-radius:18px;overflow:hidden;
  box-shadow:var(--shadow);position:relative;
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
@media (min-width:640px){.lv-card{margin-bottom:24px}}
.lv-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;z-index:3;
  background:linear-gradient(90deg,var(--primary),rgba(22,217,198,0));
  opacity:0;transition:opacity .2s var(--ease);
}
.lv-card:hover{transform:translateY(-4px);border-color:rgba(22,217,198,.3);box-shadow:0 24px 48px -24px rgba(0,0,0,.7)}
.lv-card:hover::before{opacity:1}
.lv-card.is-hidden{display:none}

.lv-cover{position:relative;overflow:hidden}
.lv-cover img{width:100%;object-fit:cover;transition:transform .5s var(--ease)}
.lv-card:hover .lv-cover img{transform:scale(1.04)}
.lv-cover.tall img{height:228px}
.lv-cover.mid img{height:182px}
.lv-cover.short img{height:142px}
.lv-cover::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,10,18,.06) 0%,rgba(5,10,18,.9) 100%);
}
.lv-badge{
  position:absolute;top:14px;left:14px;z-index:2;
  padding:5px 11px;border-radius:8px;font-size:12px;letter-spacing:.08em;
  background:rgba(5,10,18,.72);border:1px solid var(--line);color:var(--primary);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
}
.lv-badge.coral{border-color:rgba(255,106,61,.45);color:var(--accent)}
.lv-tag{
  position:absolute;top:14px;right:14px;z-index:2;
  padding:5px 10px;border-radius:8px;font-size:12px;
  background:rgba(255,255,255,.08);border:1px solid var(--line);color:var(--text-2);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
}

.lv-body{padding:20px 20px 22px}
@media (min-width:1024px){.lv-body{padding:22px 24px 24px}}
.lv-title{font-size:19px;font-weight:700;line-height:1.4}
.lv-desc{margin-top:8px;font-size:14px;color:var(--text-2);line-height:1.75}
.lv-list{margin-top:14px;display:flex;flex-direction:column;gap:8px}
.lv-list li{display:flex;gap:9px;font-size:14px;color:var(--text-2);line-height:1.7}
.lv-list li svg{flex:0 0 auto;margin-top:5px;color:var(--primary)}
.lv-price{
  display:flex;align-items:baseline;gap:6px;margin-top:18px;padding-top:16px;
  border-top:1px solid var(--line);
}
.lv-price .num{font-size:26px;font-weight:800;color:var(--accent);letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.lv-price .unit{font-size:13px;color:var(--text-3)}
.lv-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:14px;flex-wrap:wrap}
.arrow{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-size:14px;font-weight:600}
.arrow svg{transition:transform .2s var(--ease)}
.arrow:hover svg{transform:translateX(3px)}
.meta-time{font-size:13px;color:var(--text-3)}

/* ---------- 说明卡 ---------- */
.note-grid{display:grid;grid-template-columns:1fr;gap:18px}
@media (min-width:768px){.note-grid{grid-template-columns:repeat(3,1fr);gap:22px}}
.note-card{
  background:linear-gradient(180deg,rgba(255,255,255,.055),rgba(255,255,255,.02));
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border:1px solid var(--line);border-top-color:rgba(255,255,255,.16);
  border-radius:18px;padding:24px;
  transition:transform .2s var(--ease),border-color .2s var(--ease);
}
.note-card:hover{transform:translateY(-4px);border-color:rgba(22,217,198,.28)}
.note-ico{
  width:40px;height:40px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:rgba(22,217,198,.12);border:1px solid rgba(22,217,198,.28);color:var(--primary);margin-bottom:14px;
}
.note-title{font-size:17px;font-weight:700;margin-bottom:8px}
.note-text{font-size:14px;color:var(--text-2);line-height:1.78}

/* ---------- FAQ ---------- */
.faq-wrap{
  background:linear-gradient(180deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border:1px solid var(--line);border-top-color:rgba(255,255,255,.16);
  border-radius:18px;padding:6px 20px;
}
@media (min-width:768px){.faq-wrap{padding:8px 28px}}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 0;text-align:left;font-size:16px;font-weight:700;line-height:1.6;color:var(--text-1);
}
.faq-q:hover{color:var(--primary)}
.faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:8px;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;color:var(--primary);
  transition:transform .24s var(--ease),background .2s var(--ease);
}
.faq-item.open .faq-icon{transform:rotate(45deg);background:rgba(22,217,198,.12)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease)}
.faq-a p{margin:0 0 20px;font-size:15px;line-height:1.8;color:var(--text-2);max-width:820px}

/* ---------- CTA ---------- */
.cta-block{
  position:relative;overflow:hidden;border-radius:24px;border:1px solid var(--line);
  border-top-color:rgba(255,255,255,.18);
  background:
    linear-gradient(135deg,rgba(22,217,198,.14),rgba(255,106,61,.08) 58%,rgba(255,255,255,.02));
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  padding:36px 22px;
}
@media (min-width:768px){.cta-block{padding:52px 44px}}
.cta-glow{
  position:absolute;width:340px;height:340px;right:-120px;top:-140px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,106,61,.28),transparent 66%);pointer-events:none;
}
.cta-h2{font-size:24px;font-weight:800;line-height:1.32;position:relative;z-index:2}
@media (min-width:768px){.cta-h2{font-size:30px}}
.cta-list{display:grid;grid-template-columns:1fr;gap:10px;margin-top:22px;position:relative;z-index:2}
@media (min-width:768px){.cta-list{grid-template-columns:repeat(3,1fr);gap:18px}}
.cta-list li{display:flex;gap:9px;font-size:14px;color:var(--text-2);line-height:1.7}
.cta-list li svg{flex:0 0 auto;margin-top:5px;color:var(--primary)}
.cta-actions{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:28px;position:relative;z-index:2}
.cta-hint{font-size:13px;color:var(--text-3)}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:0;border-top:1px solid var(--line);background:var(--bg-1);padding-top:52px}
.foot-grid{display:grid;grid-template-columns:1fr;gap:34px}
@media (min-width:768px){.foot-grid{grid-template-columns:repeat(2,1fr);gap:36px}}
@media (min-width:1024px){.foot-grid{grid-template-columns:1.6fr 1fr 1.1fr 1.3fr;gap:40px}}
.foot-title{font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--text-1);margin-bottom:14px}
.foot-list{display:flex;flex-direction:column;gap:10px}
.foot-list a{font-size:14px;color:var(--text-2);transition:color .18s var(--ease)}
.foot-list a:hover{color:var(--primary)}
.sub-form{display:flex;gap:8px;margin-top:16px}
.sub-input{
  width:100%;height:44px;padding:0 14px;border-radius:12px;border:1px solid var(--line);
  background:var(--bg-0);color:var(--text-1);font-size:14px;outline:0;
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.sub-input::placeholder{color:var(--text-3)}
.sub-input:focus{border-color:rgba(22,217,198,.6);box-shadow:0 0 0 3px rgba(22,217,198,.12)}
.foot-bottom{
  display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;
  margin-top:40px;padding:20px 0;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}

/* roulang page: category3 */
:root{
    --bg-0:#050A12;
    --bg-1:#0A131F;
    --bg-2:#101C2B;
    --line:rgba(120,190,220,.14);
    --primary:#16D9C6;
    --primary-deep:#0C8C84;
    --accent:#FF6A3D;
    --text-1:#EAF3F8;
    --text-2:#9DB0C4;
    --text-3:#6B7F94;
    --radius-card:18px;
    --radius-img:14px;
    --shadow-card:0 18px 40px -20px rgba(0,0,0,.55);
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    background:var(--bg-0);
    color:var(--text-1);
    font-family:system-ui,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
    font-size:16px;
    line-height:1.8;
    overflow-x:hidden;
  }
  body::before{
    content:"";
    position:fixed;
    inset:0;
    z-index:0;
    pointer-events:none;
    background-image:
      linear-gradient(rgba(120,190,220,.032) 1px, transparent 1px),
      linear-gradient(90deg, rgba(120,190,220,.032) 1px, transparent 1px);
    background-size:72px 72px;
    -webkit-mask-image:radial-gradient(120% 90% at 50% 0%, #000 0%, transparent 78%);
    mask-image:radial-gradient(120% 90% at 50% 0%, #000 0%, transparent 78%);
  }
  img{max-width:100%;display:block;}
  a{color:var(--text-2);text-decoration:none;transition:color .18s ease-out, border-color .18s ease-out;}
  a:hover{color:var(--primary);}
  button{font:inherit;}
  :focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:8px;}
  h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.35;color:var(--text-1);letter-spacing:.01em;}
  p{margin:0;}
  .num{font-variant-numeric:tabular-nums;}

  .shell{
    width:100%;
    max-width:1200px;
    margin:0 auto;
    padding:0 24px;
    position:relative;
    z-index:2;
  }
  @media (min-width:1280px){ .shell{max-width:1280px;padding:0 32px;} }
  @media (max-width:767px){ .shell{padding:0 20px;} }

  /* ---------- 导航 ---------- */
  .site-header{
    position:sticky;
    top:0;
    z-index:50;
    background:rgba(5,10,18,.74);
    backdrop-filter:blur(12px) saturate(140%);
    -webkit-backdrop-filter:blur(12px) saturate(140%);
    border-bottom:1px solid transparent;
    transition:background .2s ease-out, border-color .2s ease-out, box-shadow .2s ease-out;
  }
  .site-header.is-scrolled{
    background:rgba(5,10,18,.93);
    border-bottom-color:var(--line);
    box-shadow:0 12px 30px -22px rgba(0,0,0,.95);
  }
  .nav-row{
    display:flex;
    align-items:center;
    gap:26px;
    height:64px;
  }
  .brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
  .brand-mark{width:40px;height:40px;flex-shrink:0;}
  .brand-text{display:flex;flex-direction:column;line-height:1.2;}
  .brand-name{font-size:15px;font-weight:700;color:var(--text-1);letter-spacing:.01em;white-space:nowrap;}
  .brand-sub{font-size:10px;letter-spacing:.16em;color:var(--text-3);}
  .nav-links{display:flex;align-items:center;gap:26px;margin-left:8px;}
  .nav-links a{
    position:relative;
    font-size:14.5px;
    color:var(--text-2);
    padding:6px 0;
    white-space:nowrap;
  }
  .nav-links a::after{
    content:"";
    position:absolute;
    left:0;right:0;bottom:-2px;
    height:2px;
    border-radius:2px;
    background:linear-gradient(90deg,var(--primary),var(--primary-deep));
    transform:scaleX(0);
    transform-origin:left;
    transition:transform .2s ease-out;
  }
  .nav-links a:hover{color:var(--text-1);}
  .nav-links a.active{color:var(--primary);}
  .nav-links a.active::after{transform:scaleX(1);}
  .nav-side{display:flex;align-items:center;gap:12px;margin-left:auto;}
  .nav-search{
    display:flex;align-items:center;gap:8px;
    height:40px;padding:0 14px;
    border:1px solid var(--line);
    border-radius:12px;
    background:rgba(255,255,255,.03);
    color:var(--text-3);
    transition:border-color .2s ease-out, box-shadow .2s ease-out;
  }
  .nav-search:focus-within{
    border-color:rgba(22,217,198,.5);
    box-shadow:0 0 0 3px rgba(22,217,198,.12);
  }
  .nav-search input{
    width:142px;height:100%;
    border:0;outline:none;background:transparent;
    color:var(--text-1);font-size:14px;
  }
  .nav-search input::placeholder{color:var(--text-3);}
  .burger{
    display:none;
    width:42px;height:42px;
    border:1px solid var(--line);
    border-radius:12px;
    background:rgba(255,255,255,.03);
    cursor:pointer;
    padding:0;
    position:relative;
    z-index:70;
  }
  .burger span{
    display:block;
    width:18px;height:2px;
    margin:4px auto;
    border-radius:2px;
    background:var(--text-1);
    transition:transform .2s ease-out, opacity .2s ease-out;
  }
  body.nav-open .burger span:nth-child(1){transform:translateY(6px) rotate(45deg);}
  body.nav-open .burger span:nth-child(2){opacity:0;}
  body.nav-open .burger span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    border-radius:999px;
    border:1px solid transparent;
    font-weight:600;
    font-size:15px;
    line-height:1;
    padding:15px 28px;
    cursor:pointer;
    text-decoration:none;
    transition:transform .18s ease-out, box-shadow .18s ease-out, filter .18s ease-out, border-color .18s ease-out, background .18s ease-out, color .18s ease-out;
  }
  .btn-primary{
    background:linear-gradient(180deg,#FF7E55,#FF6A3D);
    color:#210D05;
    box-shadow:0 14px 30px -16px rgba(255,106,61,.65);
  }
  .btn-primary:hover{
    color:#210D05;
    filter:brightness(1.08);
    transform:translateY(-1px);
    box-shadow:0 12px 30px -8px rgba(255,106,61,.45);
  }
  .btn-primary:active{transform:translateY(1px);}
  .btn-ghost{
    background:rgba(255,255,255,.03);
    border-color:var(--line);
    color:var(--text-1);
  }
  .btn-ghost:hover{
    color:var(--text-1);
    border-color:rgba(22,217,198,.5);
    background:rgba(22,217,198,.07);
    transform:translateY(-1px);
  }
  .btn-ghost:active{transform:translateY(1px);}
  .btn-sm{padding:11px 20px;font-size:14px;}
  .btn-line{
    display:inline-flex;align-items:center;gap:6px;
    font-size:14px;font-weight:600;color:var(--primary);
  }
  .btn-line:hover{color:var(--primary);text-decoration:underline;text-underline-offset:4px;}

  /* ---------- 通用板块 ---------- */
  .section{padding:88px 0;position:relative;z-index:2;}
  .section.alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
  .section-head{max-width:760px;margin-bottom:36px;}
  .eyebrow{
    display:inline-block;
    font-size:12px;letter-spacing:.08em;
    color:var(--primary);
    border:1px solid rgba(22,217,198,.28);
    background:rgba(22,217,198,.08);
    border-radius:8px;
    padding:5px 10px;
    margin-bottom:14px;
  }
  .section-head h2{font-size:clamp(24px,2.6vw,34px);margin-bottom:12px;}
  .section-head p{color:var(--text-2);font-size:16px;max-width:660px;}

  .badge{
    display:inline-flex;align-items:center;
    font-size:12px;letter-spacing:.08em;
    padding:5px 10px;border-radius:8px;
    border:1px solid var(--line);
    color:var(--primary);
    background:rgba(22,217,198,.07);
  }
  .badge-warn{color:#FFB199;border-color:rgba(255,106,61,.32);background:rgba(255,106,61,.1);}
  .badge-mute{color:var(--text-2);background:rgba(255,255,255,.04);}

  .card{
    background:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    backdrop-filter:blur(14px) saturate(140%);
    -webkit-backdrop-filter:blur(14px) saturate(140%);
    box-shadow:var(--shadow-card);
    transition:transform .2s ease-out, border-color .2s ease-out;
    position:relative;
    overflow:hidden;
  }
  .card::before{
    content:"";
    position:absolute;left:0;right:0;top:0;height:1px;
    background:linear-gradient(90deg,transparent,rgba(255,255,255,.28),transparent);
    opacity:.7;
  }
  .card:hover{transform:translateY(-4px);border-color:rgba(22,217,198,.3);}
  .card-pad{padding:28px;}

  /* ---------- Hero ---------- */
  .cat-hero{
    position:relative;
    overflow:hidden;
    border-bottom:1px solid var(--line);
    padding:132px 0 76px;
  }
  .cat-hero .hero-media{position:absolute;inset:0;z-index:0;}
  .cat-hero .hero-media img{width:100%;height:100%;object-fit:cover;opacity:.42;filter:saturate(.9);}
  .cat-hero .hero-media::after{
    content:"";
    position:absolute;inset:0;
    background:linear-gradient(90deg,var(--bg-0) 6%,rgba(5,10,18,.86) 46%,rgba(5,10,18,.4) 100%),
               linear-gradient(180deg,rgba(5,10,18,.7) 0%,rgba(5,10,18,.2) 55%,var(--bg-0) 100%);
  }
  .hero-inner{position:relative;z-index:2;max-width:880px;}
  .crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:20px;}
  .crumbs a{color:var(--text-3);}
  .crumbs a:hover{color:var(--primary);}
  .crumbs span.sep{color:var(--text-3);opacity:.6;}
  .cat-hero h1{
    font-size:clamp(30px,4vw,52px);
    line-height:1.22;
    font-weight:800;
    letter-spacing:-.01em;
    margin-bottom:18px;
  }
  .cat-hero h1 em{font-style:normal;color:var(--primary);}
  .hero-lead{
    font-size:17px;
    color:var(--text-2);
    max-width:640px;
    margin-bottom:28px;
  }
  .hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center;}
  .hero-note{font-size:13px;color:var(--text-3);margin-top:18px;}

  /* ---------- 数据条 ---------- */
  .stat-strip{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    border-top:1px solid var(--line);
    border-bottom:1px solid var(--line);
    background:linear-gradient(180deg,rgba(16,28,43,.55),rgba(10,19,31,.35));
    position:relative;
    z-index:2;
  }
  .stat{padding:26px 24px;border-right:1px solid var(--line);}
  .stat:last-child{border-right:0;}
  .stat b{
    display:block;
    font-size:30px;
    font-weight:800;
    color:var(--text-1);
    letter-spacing:-.01em;
    font-variant-numeric:tabular-nums;
    line-height:1.2;
  }
  .stat b i{font-style:normal;color:var(--primary);font-size:20px;margin-left:2px;}
  .stat span{display:block;font-size:13px;color:var(--text-3);margin-top:6px;line-height:1.6;}

  /* ---------- 筛选胶囊 ---------- */
  .pills{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:22px;}
  .pill{
    height:40px;padding:0 18px;
    border-radius:999px;
    border:1px solid var(--line);
    background:rgba(255,255,255,.03);
    color:var(--text-2);
    font-size:14px;
    cursor:pointer;
    transition:all .2s ease-out;
  }
  .pill:hover{color:var(--text-1);border-color:rgba(22,217,198,.45);}
  .pill.is-active{
    color:#04120F;
    font-weight:700;
    border-color:transparent;
    background:linear-gradient(180deg,#1BE9D4,#12C3B2);
    box-shadow:0 10px 26px -14px rgba(22,217,198,.75);
  }

  /* ---------- 对比表 ---------- */
  .tbl-wrap{
    position:relative;
    overflow-x:auto;
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    background:rgba(16,28,43,.6);
    box-shadow:var(--shadow-card);
  }
  .tbl-wrap::after{
    content:"";
    position:absolute;top:0;right:0;bottom:0;width:44px;
    pointer-events:none;
    background:linear-gradient(90deg,transparent,rgba(5,10,18,.85));
    opacity:0;
    transition:opacity .2s ease-out;
  }
  .cmp{width:100%;min-width:780px;border-collapse:separate;border-spacing:0;}
  .cmp th,.cmp td{
    height:56px;
    padding:0 20px;
    text-align:left;
    font-size:15px;
    border-bottom:1px solid var(--line);
    vertical-align:middle;
  }
  .cmp thead th{
    position:sticky;top:0;z-index:3;
    height:60px;
    background:#0C1725;
    font-size:13px;
    letter-spacing:.06em;
    color:var(--text-2);
    font-weight:600;
  }
  .cmp tbody th{
    position:sticky;left:0;z-index:2;
    background:#0A131F;
    font-weight:600;
    color:var(--text-1);
    min-width:210px;
    box-shadow:1px 0 0 var(--line);
  }
  .cmp tbody td{color:var(--text-2);}
  .cmp tbody tr:last-child th,
  .cmp tbody tr:last-child td{border-bottom:0;}
  .cmp tbody tr{transition:opacity .2s ease-out;}
  .cmp tbody tr.is-dim{opacity:.26;}
  .cmp .col-rec{
    background:linear-gradient(180deg,rgba(22,217,198,.1),rgba(22,217,198,.03));
    position:relative;
  }
  .cmp thead .col-rec::before{
    content:"";
    position:absolute;left:0;right:0;top:0;height:3px;
    background:linear-gradient(90deg,var(--primary),var(--primary-deep));
  }
  .rec-tag{
    display:inline-block;
    font-size:11px;letter-spacing:.08em;
    color:#04120F;
    background:linear-gradient(180deg,#1BE9D4,#12C3B2);
    border-radius:6px;
    padding:2px 7px;
    margin-right:8px;
    font-weight:700;
  }
  .ico-yes,.ico-no{
    display:inline-block;
    width:18px;height:18px;
    border-radius:50%;
    position:relative;
    vertical-align:-4px;
  }
  .ico-yes{background:rgba(22,217,198,.14);}
  .ico-yes::after{
    content:"";
    position:absolute;left:6px;top:3px;
    width:5px;height:9px;
    border-right:2px solid var(--primary);
    border-bottom:2px solid var(--primary);
    transform:rotate(42deg);
  }
  .ico-no{background:rgba(157,176,196,.12);}
  .ico-no::before,.ico-no::after{
    content:"";
    position:absolute;left:4px;top:8px;
    width:10px;height:2px;
    border-radius:2px;
    background:var(--text-3);
  }
  .ico-no::before{transform:rotate(45deg);}
  .ico-no::after{transform:rotate(-45deg);}
  .cell-note{display:block;font-size:12px;color:var(--text-3);line-height:1.5;margin-top:2px;}
  .tbl-foot{font-size:13px;color:var(--text-3);margin-top:14px;line-height:1.7;}
  .scroll-hint{display:none;font-size:12px;color:var(--text-3);margin-top:10px;letter-spacing:.04em;}

  /* ---------- 说明卡布局 ---------- */
  .grid-12{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;}
  .col-7{grid-column:span 7;}
  .col-5{grid-column:span 5;}
  .stack-5{display:grid;gap:24px;align-content:start;}
  .cover-img{
    width:100%;height:200px;object-fit:cover;
    border-radius:var(--radius-img);
    margin-bottom:20px;
    box-shadow:inset 0 0 0 1px var(--line);
  }
  .card h3{font-size:18px;margin-bottom:10px;}
  .card p{color:var(--text-2);font-size:15px;}
  .point-list{list-style:none;padding:0;margin:16px 0 0;display:grid;gap:10px;}
  .point-list li{
    position:relative;
    padding-left:24px;
    font-size:14.5px;
    color:var(--text-2);
    line-height:1.7;
  }
  .point-list li::before{
    content:"";
    position:absolute;left:0;top:9px;
    width:9px;height:9px;
    border-radius:3px;
    background:linear-gradient(135deg,var(--primary),var(--primary-deep));
  }
  .mini-title{
    font-size:12px;letter-spacing:.08em;color:var(--text-3);
    margin-bottom:8px;display:block;
  }
  .kv{display:flex;align-items:baseline;gap:10px;margin-top:14px;}
  .kv b{font-size:22px;font-weight:800;color:var(--text-1);font-variant-numeric:tabular-nums;}
  .kv span{font-size:13px;color:var(--text-3);}

  /* ---------- FAQ ---------- */
  .faq-card{
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    background:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
    backdrop-filter:blur(14px) saturate(140%);
    -webkit-backdrop-filter:blur(14px) saturate(140%);
    box-shadow:var(--shadow-card);
    overflow:hidden;
  }
  .faq-item{border-bottom:1px solid var(--line);}
  .faq-item:last-child{border-bottom:0;}
  .faq-q{
    width:100%;
    display:flex;align-items:center;justify-content:space-between;gap:18px;
    padding:22px 26px;
    background:transparent;
    border:0;
    color:var(--text-1);
    font-size:16px;
    font-weight:700;
    text-align:left;
    cursor:pointer;
    transition:color .18s ease-out, background .18s ease-out;
  }
  .faq-q:hover{color:var(--primary);background:rgba(22,217,198,.04);}
  .faq-sign{
    flex-shrink:0;
    width:26px;height:26px;
    border-radius:8px;
    border:1px solid var(--line);
    position:relative;
    transition:transform .22s ease-out, border-color .22s ease-out, background .22s ease-out;
  }
  .faq-sign::before,.faq-sign::after{
    content:"";
    position:absolute;left:50%;top:50%;
    background:var(--primary);
    border-radius:2px;
    transform:translate(-50%,-50%);
  }
  .faq-sign::before{width:12px;height:2px;}
  .faq-sign::after{width:2px;height:12px;transition:opacity .2s ease-out;}
  .faq-item.is-open .faq-sign{transform:rotate(180deg);border-color:rgba(22,217,198,.5);background:rgba(22,217,198,.08);}
  .faq-item.is-open .faq-sign::after{opacity:0;}
  .faq-a{
    max-height:0;
    overflow:hidden;
    transition:max-height .28s ease-out;
  }
  .faq-a p{
    padding:0 26px 24px;
    font-size:15px;
    line-height:1.8;
    color:var(--text-2);
    max-width:760px;
  }

  /* ---------- CTA ---------- */
  .cta-block{
    position:relative;
    border:1px solid var(--line);
    border-radius:24px;
    padding:52px;
    background:
      radial-gradient(120% 140% at 100% 0%, rgba(22,217,198,.14), transparent 55%),
      linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
    backdrop-filter:blur(14px) saturate(140%);
    -webkit-backdrop-filter:blur(14px) saturate(140%);
    box-shadow:var(--shadow-card);
    overflow:hidden;
  }
  .cta-block h2{font-size:clamp(24px,2.6vw,32px);margin-bottom:14px;}
  .cta-block p{color:var(--text-2);max-width:620px;}
  .cta-chips{display:flex;flex-wrap:wrap;gap:12px;margin:24px 0 28px;}
  .chip{
    display:inline-flex;align-items:center;gap:8px;
    font-size:14px;color:var(--text-1);
    border:1px solid var(--line);
    background:rgba(255,255,255,.04);
    border-radius:999px;
    padding:9px 16px;
  }
  .chip i{font-style:normal;color:var(--primary);}
  .cta-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center;}
  .cta-price{font-size:13px;color:var(--text-3);margin-top:18px;}
  .cta-price b{color:var(--accent);font-variant-numeric:tabular-nums;font-weight:700;}

  /* ---------- 页脚 ---------- */
  .site-footer{
    border-top:1px solid var(--line);
    background:var(--bg-1);
    padding:64px 0 0;
    position:relative;
    z-index:2;
  }
  .foot-grid{
    display:grid;
    grid-template-columns:1.4fr 1fr 1fr 1.3fr;
    gap:36px;
    padding-bottom:44px;
  }
  .foot-title{
    font-size:12px;letter-spacing:.08em;
    color:var(--text-1);
    font-weight:700;
    margin-bottom:16px;
  }
  .foot-list{display:grid;gap:10px;}
  .foot-list a{font-size:14px;color:var(--text-2);}
  .foot-list a:hover{color:var(--primary);}
  .sub-form{display:flex;gap:8px;margin-top:16px;}
  .sub-input{
    width:100%;height:44px;
    padding:0 14px;
    border-radius:12px;
    border:1px solid var(--line);
    background:rgba(255,255,255,.03);
    color:var(--text-1);
    font-size:14px;
    outline:none;
    transition:border-color .2s ease-out, box-shadow .2s ease-out;
  }
  .sub-input::placeholder{color:var(--text-3);}
  .sub-input:focus{border-color:rgba(22,217,198,.5);box-shadow:0 0 0 3px rgba(22,217,198,.12);}
  .foot-bottom{
    border-top:1px solid var(--line);
    padding:20px 0 26px;
    display:flex;flex-wrap:wrap;gap:10px;
    justify-content:space-between;
    font-size:13px;color:var(--text-3);
  }

  /* ---------- 响应式 ---------- */
  @media (max-width:1279px){
    .foot-grid{grid-template-columns:1.3fr 1fr 1fr;}
  }
  @media (max-width:1023px){
    .section{padding:64px 0;}
    .cat-hero{padding:104px 0 60px;}
    .grid-12{grid-template-columns:1fr;}
    .col-7,.col-5{grid-column:span 1;}
    .cmp{min-width:720px;}
    .tbl-wrap::after{opacity:1;}
    .scroll-hint{display:block;}
    .foot-grid{grid-template-columns:1fr 1fr;gap:28px;}

    .burger{display:block;}
    .nav-links{
      position:fixed;
      top:0;right:0;
      height:100%;
      width:min(86vw,330px);
      margin:0;
      padding:80px 20px 108px;
      flex-direction:column;
      align-items:stretch;
      gap:2px;
      background:#0A131F;
      border-left:1px solid var(--line);
      z-index:60;
      transform:translateX(103%);
      transition:transform .28s ease-out;
      overflow-y:auto;
    }
    .nav-links a{
      padding:14px 12px;
      font-size:15px;
      border-bottom:1px solid var(--line);
    }
    .nav-links a::after{display:none;}
    .nav-links a.active{color:var(--primary);background:rgba(22,217,198,.06);border-radius:10px;}
    body.nav-open .nav-links{transform:none;}
    body.nav-open::before{
      content:"";
      position:fixed;
      inset:0;
      background:rgba(5,10,18,.62);
      z-index:55;
    }
    .nav-side{
      position:fixed;
      bottom:0;right:0;
      width:min(86vw,330px);
      margin:0;
      padding:14px 20px 22px;
      background:#0A131F;
      border-left:1px solid var(--line);
      border-top:1px solid var(--line);
      z-index:61;
      flex-direction:column;
      align-items:stretch;
      display:none;
    }
    body.nav-open .nav-side{display:flex;}
    .nav-side .btn{width:100%;}
    .nav-search{width:100%;}
    .nav-search input{width:100%;}
  }
  @media (max-width:767px){
    .stat-strip{grid-template-columns:1fr 1fr;}
    .stat{border-bottom:1px solid var(--line);}
    .stat:nth-child(2n){border-right:0;}
    .stat:nth-child(3),.stat:nth-child(4){border-bottom:0;}
    .cta-block{padding:32px 24px;}
    .card-pad{padding:22px;}
    .faq-q{padding:18px 20px;font-size:15px;}
    .faq-a p{padding:0 20px 20px;}
    .foot-grid{grid-template-columns:1fr;}
    .foot-bottom{flex-direction:column;}
    .brand-sub{display:none;}
    .brand-name{font-size:14px;}
  }
  @media (max-width:520px){
    .cat-hero{padding:92px 0 52px;}
    .hero-actions .btn{width:100%;}
    .cta-actions .btn{width:100%;}
    .stat{padding:20px 18px;}
    .stat b{font-size:24px;}
    .cmp th,.cmp td{padding:0 14px;font-size:14px;}
  }

/* roulang page: category4 */
:root{
    --bg-0:#050A12;
    --bg-1:#0A131F;
    --bg-2:#101C2B;
    --line:rgba(120,190,220,.14);
    --primary:#16D9C6;
    --primary-deep:#0C8C84;
    --accent:#FF6A3D;
    --text-1:#EAF3F8;
    --text-2:#9DB0C4;
    --text-3:#6B7F94;
    --r-card:18px;
    --r-img:14px;
    --r-badge:8px;
    --r-input:12px;
    --shadow-card:0 18px 40px -20px rgba(0,0,0,.55);
  }
  *,*::before,*::after{box-sizing:border-box}
  html{scroll-behavior:smooth}
  body{
    margin:0;
    background-color:var(--bg-0);
    background-image:
      linear-gradient(rgba(120,190,220,.032) 1px,transparent 1px),
      linear-gradient(90deg,rgba(120,190,220,.032) 1px,transparent 1px);
    background-size:68px 68px;
    color:var(--text-1);
    font-family:system-ui,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
    font-size:16px;
    line-height:1.8;
    -webkit-font-smoothing:antialiased;
    text-rendering:optimizeLegibility;
  }
  img{max-width:100%;display:block}
  a{color:inherit;text-decoration:none;transition:color .2s ease}
  button,input{font:inherit;color:inherit}
  ul,ol{margin:0;padding:0;list-style:none}
  p{margin:0}
  h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;letter-spacing:-.01em}
  ::selection{background:rgba(22,217,198,.28);color:#04131A}
  :focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}
  .num{font-variant-numeric:tabular-nums}

  .shell{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}
  @media (min-width:768px){ .shell{padding-left:24px;padding-right:24px} }
  @media (min-width:1280px){ .shell{max-width:1280px;padding-left:32px;padding-right:32px} }

  /* ============ 顶部导航 ============ */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(5,10,18,.74);
    backdrop-filter:blur(14px) saturate(140%);
    -webkit-backdrop-filter:blur(14px) saturate(140%);
    border-bottom:1px solid transparent;
    transition:background .25s ease,border-color .25s ease;
  }
  .site-header.is-scrolled{background:rgba(5,10,18,.95);border-bottom-color:var(--line)}
  .nav-row{display:flex;align-items:center;gap:14px;height:56px}
  @media (min-width:1024px){ .nav-row{height:64px;gap:24px} }

  .brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
  .brand-mark{width:38px;height:38px;flex:0 0 auto}
  .brand-text{display:flex;flex-direction:column;line-height:1.15}
  .brand-name{font-size:15px;font-weight:700;white-space:nowrap}
  .brand-sub{font-size:10px;letter-spacing:.14em;color:var(--text-3)}
  @media (max-width:640px){ .brand-mark{width:32px;height:32px} .brand-name{font-size:13px} .brand-sub{display:none} }

  .nav-links{display:none}
  @media (min-width:1024px){
    .nav-links{display:flex;align-items:center;gap:26px;margin-left:8px}
  }
  .nav-links a{position:relative;font-size:14px;color:var(--text-2);padding:6px 0;white-space:nowrap}
  .nav-links a::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;background:var(--primary);transform:scaleX(0);transform-origin:left;transition:transform .2s ease}
  .nav-links a:hover{color:var(--text-1)}
  .nav-links a:hover::after{transform:scaleX(.5)}
  .nav-links a.active{color:var(--primary)}
  .nav-links a.active::after{transform:scaleX(1)}

  .nav-side{display:none;margin-left:auto;align-items:center;gap:12px}
  @media (min-width:1024px){ .nav-side{display:flex} }
  .nav-search{
    display:flex;align-items:center;gap:8px;height:38px;padding:0 12px;
    border:1px solid var(--line);border-radius:var(--r-input);
    background:rgba(255,255,255,.03);color:var(--text-3);
    transition:border-color .2s ease,box-shadow .2s ease;
  }
  .nav-search input{width:140px;border:0;background:transparent;outline:none;font-size:13px;color:var(--text-1)}
  .nav-search input::placeholder{color:var(--text-3)}
  .nav-search:focus-within{border-color:rgba(22,217,198,.55);box-shadow:0 0 0 3px rgba(22,217,198,.12)}

  .burger{
    display:flex;flex-direction:column;justify-content:center;gap:5px;
    width:42px;height:38px;margin-left:auto;padding:0;
    border:1px solid var(--line);border-radius:12px;background:rgba(255,255,255,.03);cursor:pointer;
    transition:border-color .2s ease;
  }
  .burger:hover{border-color:rgba(22,217,198,.45)}
  .burger span{display:block;width:18px;height:2px;margin:0 auto;background:var(--text-1);border-radius:2px}
  @media (min-width:1024px){ .burger{display:none} }

  .drawer-mask{position:fixed;inset:0;background:rgba(2,6,12,.66);opacity:0;pointer-events:none;transition:opacity .25s ease;z-index:70}
  .drawer-mask.open{opacity:1;pointer-events:auto}
  .drawer{
    position:fixed;top:0;right:0;bottom:0;width:min(86vw,330px);
    background:var(--bg-1);border-left:1px solid var(--line);
    transform:translateX(100%);transition:transform .28s ease;z-index:80;
    display:flex;flex-direction:column;gap:4px;padding:20px;overflow-y:auto;
  }
  .drawer.open{transform:translateX(0)}
  .drawer-title{font-size:12px;letter-spacing:.12em;color:var(--text-3);margin:6px 10px 8px}
  .drawer a{padding:12px 12px;border-radius:12px;font-size:15px;color:var(--text-2)}
  .drawer a:hover,.drawer a.active{background:rgba(22,217,198,.09);color:var(--primary)}
  .drawer .btn{margin-top:auto}

  /* ============ 按钮 ============ */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    border-radius:999px;border:1px solid transparent;font-weight:600;cursor:pointer;
    transition:transform .18s ease,box-shadow .18s ease,background .18s ease,border-color .18s ease,color .18s ease,filter .18s ease;
  }
  .btn-primary{
    background:linear-gradient(180deg,#FF8358,#FF6A3D);color:#1B0C05;
    height:46px;padding:0 22px;font-size:15px;
    box-shadow:0 12px 30px -16px rgba(255,106,61,.75);
  }
  .btn-primary:hover{filter:brightness(1.08);box-shadow:0 12px 30px -8px rgba(255,106,61,.45)}
  .btn-primary:active{transform:translateY(1px)}
  .btn-ghost{
    background:rgba(255,255,255,.04);border-color:var(--line);color:var(--text-1);
    height:46px;padding:0 20px;font-size:15px;
  }
  .btn-ghost:hover{border-color:rgba(22,217,198,.45);color:var(--primary)}
  .btn-ghost:active{transform:translateY(1px)}
  .btn-sm{height:36px;padding:0 16px;font-size:13px}
  .btn-link{
    display:inline-flex;align-items:center;gap:6px;color:var(--text-2);font-size:14px;
    border-bottom:1px solid transparent;padding-bottom:2px;transition:color .2s ease,border-color .2s ease;
  }
  .btn-link:hover{color:var(--primary);border-bottom-color:rgba(22,217,198,.5)}
  .btn-link svg{transition:transform .2s ease}
  .btn-link:hover svg{transform:translateX(2px)}

  /* ============ 通用板块与文字 ============ */
  .section{padding:56px 0}
  @media (min-width:1024px){ .section{padding:92px 0} }
  .section-alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
  .sec-eyebrow{font-size:12px;letter-spacing:.14em;color:var(--primary);margin-bottom:12px;text-transform:uppercase}
  .sec-title{font-size:clamp(24px,3.4vw,34px);font-weight:800}
  .sec-sub{color:var(--text-2);font-size:15px;margin-top:12px;max-width:680px}
  .muted{color:var(--text-2)}
  .tiny{color:var(--text-3);font-size:13px}

  .badge{
    display:inline-flex;align-items:center;gap:6px;
    padding:4px 10px;border-radius:var(--r-badge);font-size:12px;letter-spacing:.06em;
    background:rgba(22,217,198,.1);border:1px solid rgba(22,217,198,.28);color:var(--primary);
  }
  .badge-accent{background:rgba(255,106,61,.12);border-color:rgba(255,106,61,.32);color:#FF9873}

  .card{
    position:relative;overflow:hidden;
    background:linear-gradient(168deg,rgba(255,255,255,.055),rgba(255,255,255,.016));
    border:1px solid var(--line);border-radius:var(--r-card);
    box-shadow:var(--shadow-card);
    backdrop-filter:blur(14px) saturate(140%);
    -webkit-backdrop-filter:blur(14px) saturate(140%);
    transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
  }
  .card::before{
    content:"";position:absolute;left:0;right:0;top:0;height:2px;
    background:linear-gradient(90deg,var(--primary),rgba(22,217,198,0));
    opacity:0;transition:opacity .2s ease;
  }
  .card:hover{transform:translateY(-4px);border-color:rgba(22,217,198,.3);box-shadow:0 24px 48px -24px rgba(0,0,0,.7)}
  .card:hover::before{opacity:1}

  .fig{border-radius:var(--r-img);overflow:hidden;position:relative;border:1px solid var(--line)}
  .fig img{width:100%;height:100%;object-fit:cover}
  .fig::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,10,18,0) 40%,rgba(5,10,18,.55) 100%);pointer-events:none}

  /* ============ 分类 Hero ============ */
  .cat-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line);padding:64px 0 58px}
  @media (min-width:1024px){ .cat-hero{padding:96px 0 88px} }
  .cat-hero-bg{position:absolute;inset:0;background:url('/assets/images/backpic/back-2.webp') center 38%/cover no-repeat}
  .cat-hero-mask{position:absolute;inset:0;background:linear-gradient(100deg,rgba(5,10,18,.97) 6%,rgba(5,10,18,.86) 44%,rgba(5,10,18,.5) 100%)}
  .cat-hero-inner{position:relative;z-index:2}
  .crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);flex-wrap:wrap;margin-bottom:20px}
  .crumb a:hover{color:var(--primary)}
  .crumb .sep{color:var(--text-3);opacity:.6}
  .cat-title{font-size:clamp(30px,5.4vw,52px);font-weight:800;letter-spacing:-.02em;max-width:760px}
  .cat-title .accent-line{display:block;height:3px;width:86px;margin-top:18px;border-radius:3px;background:linear-gradient(90deg,var(--primary),rgba(255,106,61,.7))}
  .cat-lead{margin-top:20px;font-size:clamp(15px,1.6vw,17px);color:var(--text-2);max-width:640px}
  .cat-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;align-items:center}
  .hero-stats{display:flex;flex-wrap:wrap;gap:28px;margin-top:38px}
  .hero-stat b{display:block;font-size:24px;font-weight:800;color:var(--text-1)}
  .hero-stat span{font-size:13px;color:var(--text-3)}

  /* ============ 时间线 ============ */
  .timeline{position:relative;padding-left:38px}
  @media (min-width:768px){ .timeline{padding-left:56px} }
  .timeline::before{
    content:"";position:absolute;left:11px;top:8px;bottom:8px;width:2px;border-radius:2px;
    background:linear-gradient(180deg,rgba(22,217,198,.75),rgba(22,217,198,.22) 55%,rgba(22,217,198,.04));
  }
  @media (min-width:768px){ .timeline::before{left:15px} }
  .tl-item{position:relative;margin-bottom:30px}
  .tl-item:last-child{margin-bottom:0}
  .tl-node{
    position:absolute;left:-38px;top:6px;
    width:24px;height:24px;border-radius:50%;
    background:var(--bg-2);border:1px solid rgba(22,217,198,.5);
    display:flex;align-items:center;justify-content:center;
    font-size:10px;font-weight:700;color:var(--primary);letter-spacing:.02em;
    box-shadow:0 0 0 5px rgba(22,217,198,.06);
  }
  @media (min-width:768px){ .tl-node{left:-56px;width:32px;height:32px;font-size:11px} }
  .tl-card{padding:22px}
  @media (min-width:768px){ .tl-card{padding:26px 28px} }
  .tl-head{display:flex;align-items:baseline;gap:12px;flex-wrap:wrap;margin-bottom:10px}
  .tl-head h3{font-size:18px;font-weight:700}
  .tl-body{display:grid;gap:18px}
  @media (min-width:768px){
    .tl-body.has-fig{grid-template-columns:1.12fr .88fr;align-items:center;gap:26px}
    .tl-item.rev .tl-body.has-fig .tl-text{order:2}
    .tl-item.rev .tl-body.has-fig .tl-fig{order:1}
  }
  .tl-fig{border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line);position:relative}
  .tl-fig img{width:100%;height:180px;object-fit:cover}
  @media (min-width:768px){ .tl-fig img{height:170px} }
  .tl-text p{color:var(--text-2);font-size:15.5px}
  .mini-list{margin-top:12px;display:grid;gap:8px}
  .mini-list li{position:relative;padding-left:18px;font-size:14.5px;color:var(--text-2)}
  .mini-list li::before{content:"";position:absolute;left:0;top:.62em;width:7px;height:7px;border-radius:2px;background:rgba(22,217,198,.7)}

  /* ============ 排查卡 ============ */
  .grid-3{display:grid;gap:20px;grid-template-columns:1fr}
  @media (min-width:640px){ .grid-3{grid-template-columns:repeat(2,1fr)} }
  @media (min-width:1024px){ .grid-3{grid-template-columns:repeat(3,1fr);gap:24px} }
  .fix-card{padding:24px}
  .fix-card h3{font-size:17px;margin-bottom:10px}
  .fix-card p{color:var(--text-2);font-size:14.5px}
  .fix-tag{font-size:12px;letter-spacing:.08em;color:var(--text-3);margin-bottom:14px;display:block}

  /* ============ 安全清单 ============ */
  .safe-wrap{display:grid;gap:26px;align-items:center}
  @media (min-width:1024px){ .safe-wrap{grid-template-columns:1.05fr .95fr;gap:44px} }
  .safe-list{display:grid;gap:14px;margin-top:26px}
  .safe-item{display:flex;gap:14px;padding:16px 18px;border:1px solid var(--line);border-radius:16px;background:rgba(255,255,255,.025)}
  .safe-item .ico{
    flex:0 0 auto;width:30px;height:30px;border-radius:10px;display:flex;align-items:center;justify-content:center;
    background:rgba(22,217,198,.12);border:1px solid rgba(22,217,198,.3);color:var(--primary);
  }
  .safe-item b{display:block;font-size:15.5px;margin-bottom:4px}
  .safe-item p{font-size:14px;color:var(--text-2)}
  .safe-fig{border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);position:relative}
  .safe-fig img{width:100%;height:320px;object-fit:cover}
  @media (min-width:1024px){ .safe-fig img{height:420px} }
  .float-card{
    position:absolute;left:18px;right:18px;bottom:18px;max-width:78%;
    padding:16px 18px;border-radius:16px;
    background:linear-gradient(160deg,rgba(255,255,255,.1),rgba(255,255,255,.03));
    border:1px solid rgba(255,255,255,.14);
    backdrop-filter:blur(14px) saturate(140%);
    -webkit-backdrop-filter:blur(14px) saturate(140%);
  }
  .float-card b{display:block;font-size:14.5px;margin-bottom:4px}
  .float-card p{font-size:13px;color:var(--text-2)}

  /* ============ FAQ ============ */
  .faq-box{padding:8px 22px;border-radius:var(--r-card)}
  @media (min-width:768px){ .faq-box{padding:8px 30px} }
  .faq-item{border-bottom:1px solid var(--line)}
  .faq-item:last-child{border-bottom:0}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:20px 0;background:none;border:0;text-align:left;cursor:pointer;
    font-size:16px;font-weight:700;color:var(--text-1);transition:color .2s ease;
  }
  .faq-q:hover{color:var(--primary)}
  .faq-q .plus{
    flex:0 0 auto;width:26px;height:26px;border-radius:8px;
    display:flex;align-items:center;justify-content:center;
    border:1px solid var(--line);color:var(--primary);font-size:16px;line-height:1;
    transition:transform .25s ease,border-color .25s ease;
  }
  .faq-item.open .plus{transform:rotate(45deg);border-color:rgba(22,217,198,.5)}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;color:var(--text-2);font-size:15px}
  .faq-a p{padding-bottom:20px;max-width:820px}
  .faq-item.open .faq-a{max-height:260px;overflow:auto}

  /* ============ CTA ============ */
  .cta-band{
    position:relative;overflow:hidden;border-radius:24px;padding:38px 24px;
    background:linear-gradient(140deg,rgba(22,217,198,.13),rgba(255,106,61,.09) 70%,rgba(255,255,255,.02));
    border:1px solid rgba(120,190,220,.18);
    backdrop-filter:blur(14px) saturate(140%);
    -webkit-backdrop-filter:blur(14px) saturate(140%);
    box-shadow:0 30px 60px -34px rgba(0,0,0,.8);
  }
  @media (min-width:768px){ .cta-band{padding:52px 48px} }
  .cta-band h2{font-size:clamp(22px,3vw,30px);font-weight:800}
  .cta-points{display:grid;gap:12px;margin:22px 0 28px}
  @media (min-width:768px){ .cta-points{grid-template-columns:repeat(3,1fr);gap:18px} }
  .cta-point{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:var(--text-2)}
  .cta-point i{color:var(--primary);flex:0 0 auto;margin-top:2px}
  .cta-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center}

  /* ============ 页脚 ============ */
  .site-footer{border-top:1px solid var(--line);background:var(--bg-1);margin-top:0;padding:54px 0 0}
  .foot-grid{display:grid;gap:32px;grid-template-columns:1fr}
  @media (min-width:640px){ .foot-grid{grid-template-columns:repeat(2,1fr)} }
  @media (min-width:1024px){ .foot-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:28px} }
  .foot-title{font-size:13px;letter-spacing:.1em;color:var(--text-3);margin-bottom:14px}
  .foot-list{display:grid;gap:10px}
  .foot-list a{font-size:14px;color:var(--text-2)}
  .foot-list a:hover{color:var(--primary)}
  .sub-form{display:flex;gap:10px;margin-top:16px;align-items:center;position:relative}
  .sub-input{
    width:100%;height:44px;padding:0 14px;border-radius:var(--r-input);
    border:1px solid var(--line);background:rgba(255,255,255,.03);color:var(--text-1);
    outline:none;transition:border-color .2s ease,box-shadow .2s ease;font-size:14px;
  }
  .sub-input::placeholder{color:var(--text-3)}
  .sub-input:focus{border-color:rgba(22,217,198,.55);box-shadow:0 0 0 3px rgba(22,217,198,.12)}
  .foot-bottom{
    margin-top:44px;border-top:1px solid var(--line);
    padding:20px 0;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
    font-size:13px;color:var(--text-3);
  }