/* roulang page: index */
:root{
  --ink:#05141D;
  --band:#081E2B;
  --panel:#0B2431;
  --panel-2:#0E2C3A;
  --text:#E9F7FA;
  --muted:#9BB6C3;
  --weak:#6F8A97;
  --teal:#19D3C5;
  --teal-deep:#0E9A92;
  --coral:#FF7A59;
  --line:rgba(125,249,255,.14);
  --line-strong:rgba(125,249,255,.30);
  --r-sm:10px;
  --r-md:18px;
  --r-lg:26px;
  --shadow:0 10px 30px rgba(0,0,0,.28);
  --shadow-lift:0 18px 44px rgba(0,0,0,.36);
  --glow:0 0 0 1px rgba(25,211,197,.35),0 10px 30px rgba(25,211,197,.22);
  --font:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background-color:var(--ink);
  background-image:
    radial-gradient(1100px 520px at 82% -10%, rgba(25,211,197,.10), transparent 62%),
    radial-gradient(760px 420px at 6% 12%, rgba(25,211,197,.06), transparent 66%),
    repeating-linear-gradient(0deg, rgba(125,249,255,.035) 0 1px, transparent 1px 44px),
    repeating-linear-gradient(90deg, rgba(125,249,255,.035) 0 1px, transparent 1px 44px);
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--teal);text-decoration:none;transition:color .18s ease,opacity .18s ease;}
a:hover{color:#5FF3E8;}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.28;letter-spacing:.01em;color:var(--text);}
p{margin:0 0 1em;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
::selection{background:rgba(25,211,197,.28);color:#fff;}
:focus-visible{outline:2px solid var(--teal);outline-offset:3px;border-radius:6px;}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 32px;}
.section{padding:88px 0;}
.section-sm{padding:56px 0;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.12em;text-transform:uppercase;
  color:var(--teal);font-weight:700;margin-bottom:16px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:linear-gradient(90deg,var(--teal),transparent);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap;}
.section-head h2{font-size:clamp(1.6rem,2.6vw,2.35rem);}
.section-head .sub{color:var(--muted);font-size:15px;max-width:560px;margin:10px 0 0;}
.muted{color:var(--muted);}
.weak{color:var(--weak);}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  height:48px;padding:0 24px;border-radius:999px;
  font-size:15px;font-weight:700;line-height:1;cursor:pointer;
  border:1px solid transparent;background:transparent;color:var(--text);
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,border-color .18s ease,color .18s ease;
  white-space:nowrap;
}
.btn i{font-size:13px;transition:transform .18s ease;}
.btn-primary{
  background:linear-gradient(135deg,#2CE3D4 0%,#19D3C5 46%,#0E9A92 100%);
  color:#03191C;box-shadow:var(--glow);
}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.07);color:#03191C;}
.btn-primary:active{transform:translateY(0);box-shadow:inset 0 2px 8px rgba(0,0,0,.35);}
.btn-ghost{border-color:var(--line-strong);color:var(--text);background:rgba(11,36,49,.6);}
.btn-ghost:hover{border-color:var(--teal);color:var(--teal);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}
.btn-text{display:inline-flex;align-items:center;gap:8px;color:var(--teal);font-weight:700;font-size:15px;}
.btn-text i{transition:transform .18s ease;}
.btn-text:hover i{transform:translateX(4px);}
.btn:disabled,.btn[disabled]{opacity:.45;cursor:not-allowed;box-shadow:none;transform:none;}

.tag{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:999px;font-size:12px;font-weight:700;letter-spacing:.02em;}
.tag-teal{background:rgba(25,211,197,.14);color:var(--teal);border:1px solid rgba(25,211,197,.32);}
.tag-coral{background:rgba(255,122,89,.14);color:var(--coral);border:1px solid rgba(255,122,89,.32);}
.tag-mute{background:rgba(155,182,195,.10);color:var(--muted);border:1px solid rgba(155,182,195,.22);}

/* ---------- Header ---------- */
.announce{
  background:linear-gradient(90deg,rgba(25,211,197,.14),rgba(25,211,197,.02));
  border-bottom:1px solid var(--line);
  font-size:12.5px;color:var(--muted);
}
.announce .container{display:flex;align-items:center;justify-content:space-between;height:34px;gap:16px;}
.announce a{font-weight:700;font-size:12.5px;}
.announce .dot{width:6px;height:6px;border-radius:50%;background:var(--teal);box-shadow:0 0 10px var(--teal);margin-right:8px;display:inline-block;}
.announce .left{display:inline-flex;align-items:center;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}

.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(5,20,29,.86);
  -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:22px;height:72px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--text);}
.brand:hover{color:var(--text);}
.brand-mark{width:34px;height:34px;flex:0 0 auto;}
.brand-text{font-size:18px;font-weight:800;letter-spacing:.02em;}
.nav-main{display:flex;align-items:center;gap:6px;flex:1 1 auto;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:72px;padding:0 12px;
  font-size:14.5px;font-weight:600;color:var(--muted);white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:16px;height:2px;border-radius:2px;
  background:var(--teal);transform:scaleX(0);transform-origin:left;transition:transform .2s ease;
  box-shadow:0 0 10px rgba(25,211,197,.7);
}
.nav-link:hover{color:var(--text);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--text);}
.nav-link.is-active::after{transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.nav-search{
  display:flex;align-items:center;gap:8px;height:38px;width:230px;padding:0 14px;
  border-radius:999px;border:1px solid var(--line);background:rgba(10,34,48,.85);
  transition:width .22s ease,border-color .2s ease,box-shadow .2s ease;
}
.nav-search i{color:var(--weak);font-size:13px;}
.nav-search input{
  border:0;background:transparent;color:var(--text);font-size:13.5px;width:100%;height:100%;
  outline:none;font-family:inherit;
}
.nav-search input::placeholder{color:var(--weak);}
.nav-search:focus-within{width:280px;border-color:var(--teal);box-shadow:0 0 0 3px rgba(25,211,197,.16);}
.ghost-link{font-size:13.5px;color:var(--muted);font-weight:600;}
.ghost-link:hover{color:var(--teal);}
.menu-toggle{
  display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line-strong);
  background:rgba(10,34,48,.8);color:var(--text);cursor:pointer;align-items:center;justify-content:center;
}
.menu-toggle:hover{border-color:var(--teal);color:var(--teal);}

/* mobile drawer */
.mobile-drawer{
  position:fixed;inset:0;z-index:90;display:none;
}
.mobile-drawer.is-open{display:block;}
.drawer-mask{position:absolute;inset:0;background:rgba(3,12,18,.72);}
.drawer-panel{
  position:absolute;top:0;right:0;width:min(340px,86vw);height:100%;
  background:#061A25;border-left:1px solid var(--line-strong);
  padding:22px 20px;overflow-y:auto;display:flex;flex-direction:column;gap:6px;
  box-shadow:-16px 0 40px rgba(0,0,0,.5);
}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;}
.drawer-close{width:38px;height:38px;border-radius:10px;border:1px solid var(--line);background:transparent;color:var(--muted);cursor:pointer;}
.drawer-close:hover{color:var(--teal);border-color:var(--teal);}
.drawer-link{
  display:flex;align-items:center;min-height:48px;padding:0 12px;border-radius:12px;
  color:var(--muted);font-size:16px;font-weight:600;border-left:2px solid transparent;
}
.drawer-link:hover,.drawer-link.is-active{color:var(--text);background:rgba(25,211,197,.08);border-left-color:var(--teal);}
.drawer-search{display:flex;align-items:center;gap:8px;height:44px;padding:0 14px;margin-top:14px;border-radius:12px;border:1px solid var(--line);background:#0A2230;}
.drawer-search input{border:0;background:transparent;color:var(--text);outline:none;width:100%;font-family:inherit;font-size:14px;}
.drawer-foot{margin-top:auto;padding-top:20px;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:12px;}

/* ---------- Hero ---------- */
.hero{position:relative;padding:76px 0 84px;overflow:hidden;}
.hero::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(700px 420px at 78% 18%, rgba(25,211,197,.14), transparent 68%);
  pointer-events:none;
}
.hero-grid{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:56px;align-items:center;position:relative;}
.hero h1{
  font-size:clamp(2.1rem,4vw,3.5rem);
  line-height:1.22;letter-spacing:-.01em;margin:0 0 18px;
  background:linear-gradient(120deg,#F2FEFF 20%,#B8F4EF 62%,#4FE0D5 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-lead{font-size:17px;color:var(--muted);max-width:560px;margin-bottom:28px;}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:26px;}
.trust-row{display:flex;flex-wrap:wrap;gap:10px;}
.trust-pill{
  display:inline-flex;align-items:center;gap:8px;padding:7px 14px;border-radius:999px;
  border:1px solid var(--line);background:rgba(11,36,49,.66);font-size:12.5px;color:var(--muted);font-weight:600;
}
.trust-pill i{color:var(--teal);font-size:12px;}

.hero-stage{
  position:relative;border-radius:var(--r-lg);padding:18px;
  border:1px solid rgba(125,249,255,.20);
  background:rgba(13,44,58,.55);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  box-shadow:0 24px 60px rgba(0,0,0,.45);
  overflow:hidden;
}
.stage-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.42;}
.stage-veil{position:absolute;inset:0;background:linear-gradient(160deg,rgba(5,20,29,.55) 10%,rgba(5,20,29,.9) 78%);}
.stage-inner{position:relative;z-index:2;border-radius:20px;background:rgba(8,30,43,.82);border:1px solid var(--line);padding:16px;}
.stage-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px;}
.stage-img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:14px;transition:transform .4s ease;}
.stage-inner:hover .stage-img{transform:scale(1.02);}
.stage-meta{padding-top:14px;}
.stage-meta h3{font-size:18px;margin-bottom:6px;}
.stage-spec{font-size:13px;color:var(--weak);margin-bottom:10px;}
.stage-price{font-size:24px;font-weight:800;color:var(--coral);letter-spacing:.01em;font-variant-numeric:tabular-nums;margin:0 0 12px;}
.stage-price span{font-size:13px;font-weight:600;color:var(--muted);margin-left:4px;}

/* ---------- Bento picks ---------- */
.chips{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px;}
.chip{
  display:inline-flex;align-items:center;height:36px;padding:0 16px;border-radius:999px;
  font-size:13.5px;font-weight:600;color:var(--muted);border:1px solid var(--line);
  background:rgba(11,36,49,.6);cursor:pointer;transition:all .18s ease;
}
.chip:hover{color:var(--text);border-color:var(--line-strong);}
.chip.is-on{background:rgba(25,211,197,.14);border-color:rgba(25,211,197,.5);color:var(--teal);}
.bento{display:grid;grid-template-columns:1fr 1fr;gap:22px;}
.bento-main{
  grid-row:span 2;display:flex;flex-direction:column;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;box-shadow:var(--shadow);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.bento-main:hover{transform:translateY(-4px);box-shadow:var(--shadow-lift);border-color:var(--line-strong);}
.bento-mini{
  display:flex;gap:16px;background:var(--panel);border:1px solid var(--line);border-radius:var(--r-md);
  padding:16px;box-shadow:var(--shadow);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.bento-mini:hover{transform:translateY(-4px);box-shadow:var(--shadow-lift);border-color:var(--line-strong);}
.bento-grid-mini{display:grid;grid-template-columns:1fr 1fr;gap:22px;}
.bento-media{position:relative;overflow:hidden;}
.bento-main .bento-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .5s ease;}
.bento-main:hover .bento-media img{transform:scale(1.04);}
.bento-media .badge-float{position:absolute;top:14px;left:14px;}
.bento-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.bento-body h3{font-size:20px;}
.bento-body p{font-size:14px;color:var(--muted);margin:0;}
.spec-list{display:flex;flex-direction:column;gap:7px;margin:6px 0 4px;}
.spec-list li{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--muted);}
.spec-list li::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--teal);flex:0 0 auto;box-shadow:0 0 8px rgba(25,211,197,.8);}
.price-line{display:flex;align-items:baseline;justify-content:space-between;gap:10px;margin-top:auto;padding-top:8px;}
.price-line .price{font-size:20px;font-weight:800;color:var(--coral);font-variant-numeric:tabular-nums;margin:0;}
.price-line .price small{font-size:12px;color:var(--muted);font-weight:600;margin-left:3px;}
.mini-thumb{width:96px;flex:0 0 96px;border-radius:12px;overflow:hidden;}
.mini-thumb img{width:100%;height:100%;object-fit:cover;aspect-ratio:1/1;transition:transform .4s ease;}
.bento-mini:hover .mini-thumb img{transform:scale(1.06);}
.mini-body{display:flex;flex-direction:column;gap:6px;min-width:0;}
.mini-body h4{font-size:15.5px;font-weight:700;}
.mini-body p{font-size:12.5px;color:var(--weak);margin:0;}
.mini-body .price{font-size:15px;color:var(--coral);font-weight:800;font-variant-numeric:tabular-nums;}

/* ---------- Reviews ---------- */
.reviews-wrap{
  border-radius:var(--r-lg);border:1px solid rgba(125,249,255,.18);
  background:rgba(11,36,49,.5);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  padding:28px;
}
.review-track{
  display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding-bottom:8px;scrollbar-width:none;
}
.review-track::-webkit-scrollbar{display:none;}
.review-card{
  scroll-snap-align:start;flex:0 0 calc((100% - 40px)/3);
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-md);
  padding:22px;display:flex;flex-direction:column;gap:12px;min-height:220px;
}
.stars{display:flex;gap:4px;color:var(--teal);}
.review-card p{font-size:14.5px;color:var(--muted);margin:0;flex:1;}
.review-foot{display:flex;align-items:center;gap:10px;padding-top:12px;border-top:1px solid var(--line);}
.review-thumb{width:40px;height:40px;border-radius:10px;object-fit:cover;}
.review-who{font-size:13px;color:var(--text);font-weight:700;}
.review-date{font-size:12px;color:var(--weak);}
.review-nav{display:flex;align-items:center;justify-content:space-between;margin-top:18px;gap:16px;}
.dots{display:flex;gap:8px;}
.dot{width:8px;height:8px;border-radius:50%;background:rgba(155,182,195,.35);border:0;padding:0;cursor:pointer;transition:all .2s ease;}
.dot.is-on{background:var(--teal);width:22px;border-radius:999px;box-shadow:0 0 10px rgba(25,211,197,.7);}
.arrow-group{display:flex;gap:10px;}
.arrow-btn{
  width:40px;height:40px;border-radius:50%;border:1px solid var(--line-strong);
  background:rgba(10,34,48,.7);color:var(--muted);cursor:pointer;display:inline-flex;
  align-items:center;justify-content:center;transition:all .18s ease;
}
.arrow-btn:hover{color:var(--teal);border-color:var(--teal);transform:translateY(-2px);}

/* ---------- Assurance bar ---------- */
.assure{
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:rgba(8,30,43,.7);
}
.assure-grid{display:grid;grid-template-columns:repeat(4,1fr);}
.assure-item{display:flex;gap:12px;padding:26px 22px;border-right:1px solid var(--line);}
.assure-item:last-child{border-right:0;}
.assure-icon{
  width:36px;height:36px;flex:0 0 36px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;
  background:rgba(25,211,197,.12);border:1px solid rgba(25,211,197,.3);color:var(--teal);
}
.assure-item h4{font-size:14px;font-weight:700;margin-bottom:2px;}
.assure-item p{font-size:12.5px;color:var(--weak);margin:0;line-height:1.6;}

/* ---------- CTA band ---------- */
.cta-band{
  border-radius:var(--r-lg);padding:40px;
  border:1px solid rgba(125,249,255,.22);
  background:linear-gradient(120deg,rgba(25,211,197,.16),rgba(11,36,49,.72) 46%,rgba(255,122,89,.10));
  -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
  box-shadow:0 24px 60px rgba(0,0,0,.4);
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-band h2{font-size:clamp(1.5rem,2.4vw,2.1rem);margin-bottom:8px;}
.cta-band p{color:var(--muted);font-size:14px;margin:0;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}
.cta-note{width:100%;border-top:1px solid var(--line);padding-top:14px;font-size:12px;color:var(--weak);margin-top:4px;}

/* ---------- News / CMS ---------- */
.news-grid{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:44px;align-items:start;}
.news-head h2{font-size:clamp(1.6rem,2.4vw,2.2rem);margin-bottom:12px;}
.news-head p{color:var(--muted);font-size:14.5px;}
.news-list{display:flex;flex-direction:column;gap:14px;}
.news-item{
  display:flex;align-items:flex-start;gap:18px;padding:18px 20px;
  border-radius:var(--r-md);border:1px solid var(--line);background:var(--panel);
  color:var(--text);transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.news-item:hover{transform:translateY(-3px);border-color:var(--line-strong);box-shadow:var(--shadow);color:var(--text);}
.news-date{
  flex:0 0 66px;width:66px;min-height:66px;border-radius:12px;background:var(--panel-2);
  border:1px solid var(--line);display:flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:700;color:var(--teal);text-align:center;padding:6px;line-height:1.4;
  font-variant-numeric:tabular-nums;
}
.news-body{display:flex;flex-direction:column;gap:6px;min-width:0;flex:1;}
.news-chip{
  align-self:flex-start;font-size:11.5px;font-weight:700;color:var(--teal);
  padding:2px 10px;border-radius:999px;background:rgba(25,211,197,.12);border:1px solid rgba(25,211,197,.28);
}
.news-title{font-size:16px;font-weight:700;line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-sum{font-size:13px;color:var(--weak);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-arrow{flex:0 0 auto;color:var(--teal);font-size:16px;align-self:center;transition:transform .2s ease;}
.news-item:hover .news-arrow{transform:translateX(5px);}
.news-empty{
  border:1px dashed var(--line-strong);border-radius:var(--r-md);background:rgba(11,36,49,.5);
  padding:44px 24px;text-align:center;color:var(--weak);display:flex;flex-direction:column;align-items:center;gap:10px;
}
.news-empty i{font-size:26px;color:rgba(25,211,197,.6);}
.news-empty strong{color:var(--muted);font-size:15px;}
.news-empty a{font-size:13.5px;font-weight:700;}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:48px;align-items:start;}
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 4px;background:transparent;border:0;color:var(--text);cursor:pointer;
  font-size:16.5px;font-weight:700;text-align:left;line-height:1.6;transition:color .18s ease;
}
.faq-q:hover{color:var(--teal);}
.faq-q .ico{
  flex:0 0 26px;width:26px;height:26px;border-radius:50%;border:1px solid var(--line-strong);
  display:inline-flex;align-items:center;justify-content:center;color:var(--teal);
  transition:transform .18s ease,background .18s ease;font-size:12px;
}
.faq-item.is-open .faq-q .ico{transform:rotate(180deg);background:rgba(25,211,197,.14);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s ease;}
.faq-a p{font-size:14.5px;color:var(--muted);padding:0 4px 20px;margin:0;line-height:1.85;}

/* ---------- Footer ---------- */
.site-footer{background:#041017;border-top:1px solid var(--line);padding:64px 0 0;margin-top:20px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px;}
.footer-brand .brand{margin-bottom:14px;}
.footer-brand p{font-size:13.5px;color:var(--weak);max-width:320px;line-height:1.8;}
.footer-col h4{font-size:14px;font-weight:700;margin-bottom:16px;color:var(--text);}
.footer-col a{
  display:flex;align-items:center;min-height:34px;font-size:13.5px;color:var(--weak);font-weight:500;
}
.footer-col a:hover{color:var(--teal);}
.footer-bottom{
  border-top:1px solid var(--line);padding:20px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12.5px;color:var(--weak);
}
.to-top{
  width:38px;height:38px;border-radius:50%;border:1px solid var(--line-strong);background:transparent;
  color:var(--muted);cursor:pointer;display:inline-flex;align-items:center;justify-content:center;transition:all .18s ease;
}
.to-top:hover{color:var(--teal);border-color:var(--teal);transform:translateY(-3px);}

/* ---------- Responsive ---------- */
@media (max-width:1100px){
  .nav-search{width:180px;}
  .nav-search:focus-within{width:210px;}
  .nav-link{padding:0 9px;font-size:14px;}
}
@media (max-width:1023px){
  .container{padding:0 24px;}
  .section{padding:64px 0;}
  .nav-main,.nav-search,.ghost-link{display:none;}
  .menu-toggle{display:inline-flex;}
  .hero{padding:52px 0 64px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .bento{grid-template-columns:1fr;}
  .bento-main{grid-row:auto;}
  .bento-grid-mini{grid-template-columns:1fr;}
  .news-grid,.faq-grid{grid-template-columns:1fr;gap:28px;}
  .assure-grid{grid-template-columns:1fr 1fr;}
  .assure-item:nth-child(2){border-right:0;}
  .assure-item:nth-child(1),.assure-item:nth-child(2){border-bottom:1px solid var(--line);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .review-card{flex:0 0 calc((100% - 20px)/2);}
  .cta-band{padding:30px;}
}
@media (max-width:639px){
  .container{padding:0 16px;}
  .section{padding:48px 0;}
  body{font-size:15.5px;}
  .header-inner{height:64px;gap:12px;}
  .brand-text{font-size:16px;}
  .brand-mark{width:30px;height:30px;}
  .btn-sm{height:36px;padding:0 14px;font-size:13px;}
  .hero h1{font-size:2rem;}
  .hero-lead{font-size:15px;}
  .hero-cta{flex-direction:column;align-items:stretch;}
  .hero-cta .btn{width:100%;}
  .review-card{flex:0 0 84%;}
  .reviews-wrap{padding:18px;}
  .assure-grid{grid-template-columns:1fr;}
  .assure-item{border-right:0;border-bottom:1px solid var(--line);padding:20px 16px;}
  .assure-item:last-child{border-bottom:0;}
  .bento-mini{flex-direction:row;}
  .mini-thumb{width:84px;flex:0 0 84px;}
  .news-item{gap:12px;padding:16px;}
  .news-date{flex:0 0 56px;width:56px;min-height:56px;font-size:11px;}
  .cta-band{padding:24px;gap:20px;}
  .cta-actions{width:100%;flex-direction:column;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding-bottom:32px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:12px;}
  .faq-q{font-size:15.5px;padding:16px 2px;}
  .section-head{margin-bottom:24px;}
}

/* roulang page: category1 */
:root{
  --bg:#05141D;
  --bg-2:#081E2B;
  --panel:#0B2431;
  --panel-2:#0E2C3A;
  --teal:#19D3C5;
  --teal-deep:#0E9A92;
  --coral:#FF7A59;
  --text:#E9F7FA;
  --muted:#9BB6C3;
  --dim:#6F8A97;
  --line:rgba(125,249,255,.14);
  --line-strong:rgba(125,249,255,.28);
  --glass:rgba(255,255,255,.04);
  --glass-line:rgba(125,249,255,.18);
  --radius-s:10px;
  --radius-m:14px;
  --radius:18px;
  --radius-l:26px;
  --shadow:0 10px 30px rgba(0,0,0,.28);
  --shadow-h:0 18px 44px rgba(0,0,0,.36);
  --glow:0 0 0 1px rgba(25,211,197,.35), 0 10px 30px rgba(25,211,197,.22);
  --section:88px;
  --font:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:
    radial-gradient(circle at 12% 8%, rgba(25,211,197,.10), transparent 42%),
    radial-gradient(circle at 88% 0%, rgba(255,122,89,.07), transparent 38%),
    repeating-linear-gradient(115deg, rgba(125,249,255,.035) 0 1px, transparent 1px 22px);
  opacity:.9;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .18s ease;}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{
  outline:2px solid var(--teal);
  outline-offset:3px;
  border-radius:6px;
}
button{font-family:inherit;cursor:pointer;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;line-height:1.25;color:var(--text);}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
input,textarea,select{font-family:inherit;font-size:15px;color:var(--text);}
::selection{background:rgba(25,211,197,.32);color:#fff;}
.container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding:0 32px;
  position:relative;
  z-index:1;
}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(5,20,29,.86);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:22px;
  min-height:72px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
}
.brand-mark{width:32px;height:32px;flex:0 0 auto;}
.brand-text{
  font-size:17px;
  font-weight:800;
  letter-spacing:.01em;
  background:linear-gradient(92deg,#E9F7FA 15%,#19D3C5 90%);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
  white-space:nowrap;
}
.brand:hover .brand-text{filter:brightness(1.12);}
.nav-main{
  display:flex;
  align-items:center;
  gap:4px;
  flex:1 1 auto;
  min-width:0;
}
.nav-link{
  position:relative;
  display:inline-block;
  padding:10px 12px;
  font-size:15px;
  color:var(--muted);
  white-space:nowrap;
  border-radius:8px;
  transition:color .18s ease,background .18s ease;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:12px;
  right:12px;
  bottom:2px;
  height:2px;
  border-radius:2px;
  background:var(--teal);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .22s ease;
}
.nav-link:hover{color:var(--text);background:rgba(125,249,255,.06);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--text);font-weight:600;}
.nav-link.is-active::after{
  transform:scaleX(1);
  box-shadow:0 0 10px rgba(25,211,197,.85);
}
.header-tools{
  display:flex;
  align-items:center;
  gap:12px;
  flex:0 0 auto;
}
.search-box{
  display:flex;
  align-items:center;
  gap:8px;
  width:240px;
  height:40px;
  padding:0 12px;
  border:1px solid var(--line);
  border-radius:999px;
  background:#0A2230;
  transition:width .22s ease,border-color .2s ease,box-shadow .2s ease;
}
.search-box:focus-within{
  width:280px;
  border-color:var(--teal);
  box-shadow:0 0 0 3px rgba(25,211,197,.14);
}
.search-box i{font-size:13px;color:var(--dim);}
.search-box input{
  flex:1 1 auto;
  min-width:0;
  height:100%;
  border:0;
  background:transparent;
  color:var(--text);
  font-size:14px;
  outline:none;
}
.search-box input::placeholder{color:var(--dim);}
.link-plain{
  font-size:14px;
  color:var(--muted);
  white-space:nowrap;
  padding:6px 4px;
}
.link-plain:hover{color:var(--teal);}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 24px;
  border-radius:12px;
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  line-height:1;
  letter-spacing:.01em;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
}
.btn-primary{
  color:#04241F;
  background:linear-gradient(96deg,#2CE3D4 0%,#19D3C5 45%,#0E9A92 100%);
  box-shadow:var(--glow);
}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.08);}
.btn-primary:active{transform:translateY(0);box-shadow:inset 0 3px 10px rgba(0,0,0,.3);}
.btn-ghost{
  color:var(--text);
  background:transparent;
  border-color:rgba(125,249,255,.32);
}
.btn-ghost:hover{
  transform:translateY(-2px);
  border-color:var(--teal);
  color:var(--teal);
  box-shadow:0 10px 26px rgba(0,0,0,.32);
}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:10px;}
.btn-block{width:100%;}
.btn-text{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  font-weight:600;
  color:var(--teal);
  background:none;
  border:0;
  padding:0;
}
.btn-text i{transition:transform .2s ease;}
.btn-text:hover i{transform:translateX(4px);}
.btn-text:hover{color:#5CF0E4;}
.nav-toggle{
  display:none;
  width:42px;
  height:42px;
  border-radius:10px;
  border:1px solid var(--line);
  background:#0A2230;
  color:var(--text);
  font-size:16px;
}
.nav-toggle:hover{border-color:var(--teal);color:var(--teal);}

/* 移动抽屉 */
.drawer-mask{
  position:fixed;
  inset:0;
  background:rgba(3,10,15,.7);
  opacity:0;
  visibility:hidden;
  transition:opacity .24s ease,visibility .24s ease;
  z-index:90;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.mobile-drawer{
  position:fixed;
  top:0;
  right:0;
  bottom:0;
  width:min(320px,86vw);
  background:#071B26;
  border-left:1px solid var(--line);
  z-index:95;
  padding:22px 20px 32px;
  transform:translateX(102%);
  transition:transform .28s cubic-bezier(.4,.1,.2,1);
  overflow-y:auto;
}
.mobile-drawer.is-open{transform:translateX(0);}
.drawer-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  margin-bottom:18px;
}
.drawer-close{
  width:38px;
  height:38px;
  border-radius:10px;
  border:1px solid var(--line);
  background:transparent;
  color:var(--muted);
  font-size:15px;
}
.drawer-close:hover{color:var(--teal);border-color:var(--teal);}
.drawer-nav{display:flex;flex-direction:column;gap:2px;margin-bottom:20px;}
.drawer-nav a{
  display:flex;
  align-items:center;
  min-height:46px;
  padding:0 12px;
  font-size:16px;
  color:var(--muted);
  border-left:2px solid transparent;
  border-radius:8px;
}
.drawer-nav a:hover{background:rgba(125,249,255,.06);color:var(--text);}
.drawer-nav a.is-active{
  color:var(--text);
  border-left-color:var(--teal);
  background:rgba(25,211,197,.08);
  font-weight:600;
}
.drawer-search{
  display:flex;
  align-items:center;
  gap:8px;
  height:46px;
  padding:0 14px;
  border:1px solid var(--line);
  border-radius:12px;
  background:#0A2230;
}
.drawer-search input{
  flex:1 1 auto;
  min-width:0;
  border:0;
  background:transparent;
  outline:none;
  font-size:14px;
}
.drawer-search i{color:var(--dim);font-size:13px;}
.drawer-foot{margin-top:18px;display:flex;flex-direction:column;gap:10px;}

/* ============ Hero ============ */
.page-hero{
  position:relative;
  padding:64px 0 56px;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:linear-gradient(180deg,rgba(5,20,29,.72) 0%,rgba(5,20,29,.94) 62%,var(--bg) 100%),url("/assets/images/backpic/back-1.png");
  background-size:cover;
  background-position:center;
  opacity:.55;
  z-index:0;
}
.hero-grid{
  display:grid;
  grid-template-columns:minmax(0,5fr) minmax(0,7fr);
  gap:48px;
  align-items:center;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--teal);
  font-weight:600;
  margin-bottom:16px;
}
.eyebrow::before{
  content:"";
  width:18px;
  height:2px;
  border-radius:2px;
  background:var(--teal);
  box-shadow:0 0 8px rgba(25,211,197,.7);
}
.page-hero h1{
  font-size:clamp(2.25rem,4.2vw,3.6rem);
  font-weight:800;
  margin-bottom:18px;
}
.page-hero .lede{
  font-size:16px;
  line-height:1.9;
  color:var(--muted);
  max-width:46ch;
  margin-bottom:26px;
}
.chips{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-bottom:26px;
}
.chip{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:36px;
  padding:0 16px;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(11,36,49,.75);
  color:var(--muted);
  font-size:13.5px;
  transition:all .2s ease;
}
.chip:hover{border-color:var(--line-strong);color:var(--text);transform:translateY(-1px);}
.chip.is-on{
  background:rgba(25,211,197,.14);
  border-color:rgba(25,211,197,.55);
  color:var(--teal);
  font-weight:600;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
.hero-hero-notes{
  display:flex;
  flex-wrap:wrap;
  gap:18px;
  margin-top:26px;
  font-size:13px;
  color:var(--dim);
}
.hero-hero-notes span{display:inline-flex;align-items:center;gap:7px;}
.hero-hero-notes i{color:var(--teal);font-size:12px;}

/* Hero 产品马赛克 */
.mosaic{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:16px;
}
.mosaic-tile{
  position:relative;
  border-radius:var(--radius);
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--panel);
  box-shadow:var(--shadow);
  aspect-ratio:4/3;
}
.mosaic-tile img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .5s ease;
}
.mosaic-tile:hover img{transform:scale(1.04);}
.mosaic-tile:nth-child(1){grid-row:span 1;}
.mosaic-tile.is-tall{aspect-ratio:4/3;}
.mosaic-caption{
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  padding:14px 16px;
  background:linear-gradient(180deg,rgba(5,20,29,0),rgba(5,20,29,.92));
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:10px;
}
.mosaic-caption strong{font-size:14px;font-weight:600;}
.mosaic-caption span{font-size:12px;color:var(--dim);}
.tag-hot{
  position:absolute;
  top:14px;
  left:14px;
  display:inline-flex;
  align-items:center;
  gap:5px;
  height:26px;
  padding:0 11px;
  border-radius:999px;
  background:rgba(255,122,89,.16);
  border:1px solid rgba(255,122,89,.5);
  color:var(--coral);
  font-size:12px;
  font-weight:600;
  backdrop-filter:blur(6px);
}

/* ============ 通用板块 ============ */
.section{padding:var(--section) 0;position:relative;}
.section--alt{background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:32px;
  margin-bottom:40px;
}
.section-head h2{
  font-size:clamp(1.75rem,2.6vw,2.35rem);
  font-weight:800;
}
.section-head p{
  margin-top:10px;
  font-size:14.5px;
  color:var(--muted);
  max-width:56ch;
}
.section-head .btn-text{flex:0 0 auto;padding-bottom:6px;}

/* ============ 产品网格 ============ */
.product-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:20px;
}
.p-card{
  display:flex;
  flex-direction:column;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  overflow:hidden;
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
  position:relative;
}
.p-card::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(125,249,255,.55),transparent);
}
.p-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-h);
  border-color:var(--line-strong);
}
.p-card-media{
  position:relative;
  aspect-ratio:4/3;
  overflow:hidden;
  background:var(--panel-2);
}
.p-card-media img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .5s ease;
}
.p-card:hover .p-card-media img{transform:scale(1.04);}
.p-card-body{
  padding:20px;
  display:flex;
  flex-direction:column;
  gap:10px;
  flex:1 1 auto;
}
.p-card-body h3{font-size:17px;font-weight:700;line-height:1.45;}
.p-card-body .spec{
  font-size:13.5px;
  color:var(--muted);
  line-height:1.75;
}
.p-card-foot{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  margin-top:auto;
  padding-top:6px;
}
.price{
  font-size:18px;
  font-weight:700;
  color:var(--coral);
  font-variant-numeric:tabular-nums;
  letter-spacing:.01em;
}
.price small{font-size:12px;color:var(--dim);font-weight:400;margin-left:4px;}
.p-card .btn-text{font-size:13.5px;}
.badge{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 10px;
  border-radius:999px;
  font-size:12px;
  font-weight:600;
  border:1px solid var(--line-strong);
  color:var(--muted);
  background:rgba(14,44,58,.7);
}
.badge-teal{border-color:rgba(25,211,197,.5);color:var(--teal);background:rgba(25,211,197,.1);}
.badge-coral{border-color:rgba(255,122,89,.5);color:var(--coral);background:rgba(255,122,89,.1);}
.p-card.is-featured{
  grid-column:span 2;
  grid-row:span 2;
}
.p-card.is-featured .p-card-media{aspect-ratio:16/9;}
.p-card.is-featured .p-card-body{padding:26px;gap:14px;}
.p-card.is-featured h3{font-size:23px;}
.p-card.is-featured .spec{font-size:14.5px;}
.spec-list{
  display:flex;
  flex-direction:column;
  gap:8px;
  margin-top:2px;
}
.spec-list li{
  position:relative;
  padding-left:20px;
  font-size:13.5px;
  color:var(--muted);
}
.spec-list li::before{
  content:"";
  position:absolute;
  left:0;
  top:9px;
  width:7px;
  height:7px;
  border-radius:2px;
  background:var(--teal);
  box-shadow:0 0 8px rgba(25,211,197,.6);
}
.p-card-tags{display:flex;flex-wrap:wrap;gap:8px;}

/* ============ 选购路径 ============ */
.path-track{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:0;
  border-top:1px solid var(--line);
  margin-top:8px;
}
.path-step{
  position:relative;
  padding:32px 28px 8px 0;
}
.path-step::before{
  content:"";
  position:absolute;
  top:-1px;
  left:0;
  width:44%;
  height:2px;
  background:linear-gradient(90deg,var(--teal),transparent);
}
.path-step .num{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:38px;
  height:38px;
  border-radius:12px;
  border:1px solid rgba(25,211,197,.45);
  background:rgba(25,211,197,.1);
  color:var(--teal);
  font-size:14px;
  font-weight:700;
  font-variant-numeric:tabular-nums;
  margin-bottom:16px;
}
.path-step h3{font-size:18px;margin-bottom:8px;}
.path-step p{font-size:14px;color:var(--muted);line-height:1.8;max-width:30ch;}

/* ============ 组合建议图文 ============ */
.split{
  display:grid;
  grid-template-columns:minmax(0,6fr) minmax(0,6fr);
  gap:56px;
  align-items:center;
}
.split-media{
  position:relative;
  border-radius:var(--radius-l);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  aspect-ratio:21/13;
}
.split-media img{width:100%;height:100%;object-fit:cover;}
.split-media .float-card{
  position:absolute;
  right:18px;
  bottom:18px;
  padding:14px 18px;
  border-radius:var(--radius-m);
  background:rgba(8,30,43,.9);
  border:1px solid var(--glass-line);
  backdrop-filter:blur(10px);
  font-size:12.5px;
  color:var(--muted);
  max-width:220px;
  line-height:1.6;
}
.split-media .float-card strong{display:block;color:var(--text);font-size:14px;margin-bottom:4px;}
.split h2{font-size:clamp(1.7rem,2.5vw,2.2rem);margin-bottom:16px;}
.split p{font-size:15px;color:var(--muted);line-height:1.9;margin-bottom:14px;}
.ticks{display:flex;flex-direction:column;gap:12px;margin-top:22px;}
.ticks li{
  display:flex;
  align-items:flex-start;
  gap:10px;
  font-size:14.5px;
  color:var(--muted);
}
.ticks i{color:var(--teal);font-size:13px;margin-top:6px;}

/* ============ 保障条 ============ */
.assure{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:var(--panel);
  overflow:hidden;
}
.assure-item{
  padding:24px 22px;
  border-right:1px solid var(--line);
  display:flex;
  align-items:flex-start;
  gap:12px;
}
.assure-item:last-child{border-right:0;}
.assure-item i{
  font-size:20px;
  color:var(--teal);
  margin-top:2px;
  flex:0 0 auto;
}
.assure-item h4{font-size:14.5px;font-weight:600;margin-bottom:4px;}
.assure-item p{font-size:12.5px;color:var(--dim);line-height:1.7;}

/* ============ FAQ ============ */
.faq-wrap{
  display:grid;
  grid-template-columns:minmax(0,4fr) minmax(0,8fr);
  gap:56px;
  align-items:start;
}
.faq-intro h2{font-size:clamp(1.7rem,2.5vw,2.2rem);margin-bottom:14px;}
.faq-intro p{font-size:14.5px;color:var(--muted);line-height:1.9;margin-bottom:18px;}
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:22px 4px;
  background:none;
  border:0;
  text-align:left;
  color:var(--text);
  font-size:16.5px;
  font-weight:600;
  line-height:1.6;
  transition:color .18s ease;
}
.faq-q:hover{color:var(--teal);}
.faq-q .ico{
  flex:0 0 auto;
  width:26px;
  height:26px;
  border-radius:8px;
  border:1px solid var(--line-strong);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:12px;
  color:var(--teal);
  transition:transform .22s ease,background .22s ease;
}
.faq-item.is-open .faq-q .ico{transform:rotate(45deg);background:rgba(25,211,197,.14);}
.faq-a{
  overflow:hidden;
  max-height:0;
  transition:max-height .28s ease;
}
.faq-a p{
  padding:0 40px 24px 4px;
  font-size:14.5px;
  color:var(--muted);
  line-height:1.9;
}

/* ============ CTA ============ */
.cta-band{
  border-radius:var(--radius-l);
  border:1px solid var(--glass-line);
  background:
    linear-gradient(120deg,rgba(25,211,197,.12),rgba(255,122,89,.08) 70%,rgba(25,211,197,.05)),
    rgba(11,36,49,.72);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  padding:44px 48px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  box-shadow:var(--shadow);
  position:relative;
  overflow:hidden;
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-60px;
  top:-60px;
  width:240px;
  height:240px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(25,211,197,.22),transparent 68%);
  pointer-events:none;
}
.cta-band h2{font-size:clamp(1.5rem,2.3vw,2rem);margin-bottom:10px;}
.cta-band p{font-size:14px;color:var(--muted);}
.cta-band .cta-actions{display:flex;gap:14px;flex:0 0 auto;flex-wrap:wrap;}
.cta-note{
  margin-top:22px;
  font-size:12.5px;
  color:var(--dim);
  text-align:center;
}

/* ============ 页脚 ============ */
.site-footer{
  background:#041017;
  border-top:1px solid var(--line);
  padding:64px 0 28px;
  position:relative;
  z-index:1;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:42px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{
  font-size:13.5px;
  color:var(--dim);
  line-height:1.9;
  max-width:36ch;
}
.footer-col h4{
  font-size:14px;
  font-weight:600;
  color:var(--text);
  margin-bottom:16px;
}
.footer-col a{
  display:flex;
  align-items:center;
  min-height:36px;
  font-size:13.5px;
  color:var(--muted);
  transition:color .18s ease,transform .18s ease;
}
.footer-col a:hover{color:var(--teal);transform:translateX(3px);}
.footer-bottom{
  border-top:1px solid var(--line);
  padding-top:22px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  font-size:12.5px;
  color:var(--dim);
}
.to-top{
  width:42px;
  height:42px;
  border-radius:50%;
  border:1px solid var(--line);
  background:#0A2230;
  color:var(--muted);
  font-size:14px;
  transition:all .2s ease;
}
.to-top:hover{border-color:var(--teal);color:var(--teal);transform:translateY(-2px);}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .nav-link{padding:10px 9px;font-size:14.5px;}
  .search-box{width:190px;}
  .search-box:focus-within{width:220px;}
}
@media (max-width:1023px){
  :root{--section:64px;}
  .container{padding:0 24px;}
  .nav-main,.link-plain,.header-tools .search-box{display:none;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .header-inner{min-height:66px;gap:14px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .page-hero{padding:48px 0 44px;}
  .product-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .p-card.is-featured{grid-column:span 2;grid-row:auto;}
  .split{grid-template-columns:1fr;gap:32px;}
  .faq-wrap{grid-template-columns:1fr;gap:32px;}
  .assure{grid-template-columns:repeat(2,minmax(0,1fr));}
  .assure-item:nth-child(2){border-right:0;}
  .assure-item:nth-child(1),.assure-item:nth-child(2){border-bottom:1px solid var(--line);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px 30px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;}
  .path-track{grid-template-columns:1fr;border-top:0;}
  .path-step{padding:0 0 26px 0;border-left:1px solid var(--line);padding-left:24px;}
  .path-step::before{top:0;left:-1px;width:2px;height:34px;background:linear-gradient(180deg,var(--teal),transparent);}
}
@media (max-width:639px){
  :root{--section:48px;}
  .container{padding:0 16px;}
  body{font-size:15.5px;}
  .brand-text{font-size:15.5px;}
  .btn{height:46px;padding:0 20px;font-size:14.5px;}
  .btn-sm{height:38px;padding:0 14px;font-size:13.5px;}
  .page-hero h1{font-size:clamp(1.9rem,8vw,2.35rem);}
  .page-hero .lede{font-size:15px;}
  .hero-actions{gap:10px;}
  .hero-actions .btn{width:100%;}
  .mosaic{gap:12px;}
  .product-grid{grid-template-columns:1fr;gap:16px;}
  .p-card.is-featured{grid-column:span 1;}
  .p-card.is-featured h3{font-size:20px;}
  .assure{grid-template-columns:1fr;}
  .assure-item{border-right:0;border-bottom:1px solid var(--line);}
  .assure-item:last-child{border-bottom:0;}
  .footer-grid{grid-template-columns:1fr;gap:24px;}
  .footer-col a{min-height:44px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:14px;}
  .faq-q{font-size:15.5px;padding:18px 2px;}
  .faq-a p{padding:0 24px 20px 2px;}
  .cta-band{padding:28px 20px;border-radius:var(--radius);}
  .cta-band .cta-actions{width:100%;flex-direction:column;}
  .cta-band .cta-actions .btn{width:100%;}
  .hero-hero-notes{gap:12px;font-size:12.5px;}
  .split-media{aspect-ratio:16/11;}
}

/* roulang page: article */
:root{
  --ink:#05141D;
  --panel:#081E2B;
  --panel-2:#0B2431;
  --panel-3:#0E2C3A;
  --cyan:#19D3C5;
  --cyan-bright:#2CE3D4;
  --cyan-deep:#0E9A92;
  --coral:#FF7A59;
  --text:#E9F7FA;
  --text-2:#9BB6C3;
  --text-3:#6F8A97;
  --line:rgba(125,249,255,.14);
  --line-strong:rgba(125,249,255,.26);
  --r-xs:10px;
  --r-sm:12px;
  --r-md:18px;
  --r-lg:20px;
  --r-xl:26px;
  --r-pill:999px;
  --shadow:0 10px 30px rgba(0,0,0,.28);
  --shadow-lg:0 18px 44px rgba(0,0,0,.36);
  --maxw:1240px;
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--ink);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:
    radial-gradient(circle at 15% 5%,rgba(25,211,197,.10),transparent 45%),
    radial-gradient(circle at 85% 0%,rgba(255,122,89,.06),transparent 42%),
    radial-gradient(rgba(125,249,255,.055) 1px,transparent 1px);
  background-size:auto,auto,26px 26px;
  opacity:.85;
}
img{max-width:100%;display:block;border-style:none}
a{color:var(--cyan);text-decoration:none;transition:color .18s ease,transform .18s ease}
a:hover{color:#8CF3EA}
p{margin:0 0 1.1em}
ul,ol{margin:0 0 1.1em;padding-left:1.3em}
button{font:inherit}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}
::selection{background:rgba(25,211,197,.28);color:#fff}

.container{
  width:100%;
  max-width:var(--maxw);
  margin:0 auto;
  padding:0 32px;
  position:relative;
  z-index:1;
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 24px;
  border:none;
  border-radius:var(--r-pill);
  font-size:15px;
  font-weight:700;
  letter-spacing:.01em;
  cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
}
.btn-primary{
  background:linear-gradient(135deg,var(--cyan-bright),var(--cyan-deep));
  color:#03272A;
  box-shadow:0 0 0 1px rgba(25,211,197,.35),0 10px 30px rgba(25,211,197,.22);
}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.06);color:#03272A}
.btn-primary:active{transform:translateY(0);box-shadow:inset 0 2px 10px rgba(0,0,0,.35)}
.btn-ghost{
  background:transparent;
  border:1px solid var(--line-strong);
  color:var(--text);
}
.btn-ghost:hover{border-color:var(--cyan);color:var(--cyan);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0);background:rgba(25,211,197,.08)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--cyan)}
.link-arrow i{transition:transform .18s ease}
.link-arrow:hover i{transform:translateX(4px)}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(5,20,29,.86);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:20px;
  height:72px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  color:var(--text);
  font-weight:800;
  flex:0 0 auto;
}
.brand:hover{color:var(--text)}
.brand-mark{width:32px;height:32px;flex:0 0 32px}
.brand-text{font-size:17px;letter-spacing:.01em;white-space:nowrap}
.nav-main{display:flex;align-items:center;gap:2px;flex:1 1 auto;min-width:0}
.nav-link{
  position:relative;
  padding:9px 12px;
  border-radius:var(--r-xs);
  font-size:15px;
  color:var(--text-2);
  white-space:nowrap;
  transition:color .18s ease,background .18s ease;
}
.nav-link:hover{color:var(--text);background:rgba(125,249,255,.06)}
.nav-link.is-active{color:var(--text);font-weight:600}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:1px;
  height:2px;
  border-radius:2px;
  background:var(--cyan);
  box-shadow:0 0 12px rgba(25,211,197,.85);
}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto;flex:0 0 auto}
.nav-search{
  display:flex;
  align-items:center;
  gap:8px;
  width:240px;
  height:40px;
  padding:0 14px;
  background:#0A2230;
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  transition:width .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.nav-search:focus-within{
  width:280px;
  border-color:var(--cyan);
  box-shadow:0 0 0 3px rgba(25,211,197,.14);
}
.nav-search i{color:var(--text-3);font-size:13px}
.nav-search input{
  width:100%;
  background:transparent;
  border:0;
  outline:0;
  color:var(--text);
  font-size:13px;
  font-family:inherit;
}
.nav-search input::placeholder{color:var(--text-3)}
.menu-toggle{
  display:none;
  width:44px;height:44px;
  align-items:center;justify-content:center;
  background:#0A2230;
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  color:var(--text);
  cursor:pointer;
  transition:border-color .18s ease,color .18s ease;
}
.menu-toggle:hover{border-color:var(--cyan);color:var(--cyan)}

/* ---------- drawer ---------- */
.drawer{
  position:fixed;
  top:0;right:0;
  width:min(330px,88vw);
  height:100%;
  z-index:90;
  padding:84px 22px 40px;
  background:#061923;
  border-left:1px solid var(--line);
  transform:translateX(102%);
  transition:transform .28s ease;
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-close{
  position:absolute;
  top:20px;right:20px;
  width:40px;height:40px;
  display:flex;align-items:center;justify-content:center;
  background:transparent;
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  color:var(--text-2);
  cursor:pointer;
}
.drawer-close:hover{color:var(--cyan);border-color:var(--cyan)}
.drawer-title{font-size:12px;letter-spacing:.14em;color:var(--text-3);margin:0 0 8px}
.drawer nav{display:block;margin-bottom:22px}
.drawer nav a{
  display:block;
  padding:13px 0;
  font-size:16px;
  color:var(--text-2);
  border-bottom:1px solid rgba(125,249,255,.10);
}
.drawer nav a:hover{color:var(--cyan)}
.drawer nav a.is-active{color:var(--cyan);border-left:3px solid var(--cyan);padding-left:12px}
.drawer .drawer-search{
  display:flex;align-items:center;gap:8px;
  height:44px;padding:0 14px;margin-bottom:18px;
  background:#0A2230;border:1px solid var(--line);border-radius:var(--r-pill);
}
.drawer .drawer-search input{background:transparent;border:0;outline:0;color:var(--text);font-size:14px;width:100%;font-family:inherit}
.drawer .drawer-search i{color:var(--text-3);font-size:13px}

/* ---------- breadcrumb ---------- */
.crumbs{
  padding:26px 0 0;
  font-size:13px;
  color:var(--text-3);
}
.crumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;list-style:none;margin:0;padding:0}
.crumbs li{display:flex;align-items:center;gap:8px;max-width:100%}
.crumbs li+li::before{content:"/";color:rgba(155,182,195,.5)}
.crumbs a{color:var(--text-2)}
.crumbs a:hover{color:var(--cyan)}
.crumbs .current{color:var(--text-3);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:60vw}

/* ---------- article head ---------- */
.article-head{padding:28px 0 0}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:16px}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  height:28px;padding:0 14px;
  border-radius:var(--r-pill);
  font-size:12px;font-weight:600;letter-spacing:.04em;
  color:var(--cyan);
  background:rgba(25,211,197,.10);
  border:1px solid rgba(25,211,197,.28);
}
.chip-coral{color:var(--coral);background:rgba(255,122,89,.10);border-color:rgba(255,122,89,.30)}
.chip-muted{color:var(--text-2);background:rgba(125,249,255,.05);border-color:var(--line)}
h1.article-title{
  margin:0 0 18px;
  font-size:clamp(1.9rem,3.4vw,3rem);
  line-height:1.28;
  font-weight:800;
  letter-spacing:-.01em;
  max-width:960px;
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:22px;
  font-size:13px;color:var(--text-3);
  padding-bottom:24px;
  border-bottom:1px solid var(--line);
}
.meta-row span{display:inline-flex;align-items:center;gap:7px}
.meta-row i{color:rgba(25,211,197,.7);font-size:12px}
.cover{
  margin:26px 0 0;
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--line);
  background:#0A2230;
  box-shadow:var(--shadow);
  aspect-ratio:16/9;
}
.cover img{width:100%;height:100%;object-fit:cover}
.cover figcaption{
  padding:12px 18px;
  font-size:13px;
  color:var(--text-3);
  border-top:1px solid var(--line);
  background:var(--panel-2);
}

/* ---------- layout ---------- */
.article-wrap{padding:44px 0 8px}
.layout{
  display:grid;
  grid-template-columns:minmax(0,8fr) minmax(0,4fr);
  gap:36px;
  align-items:start;
}
.reader{
  background:var(--panel-2);
  border:1px solid var(--line);
  border-radius:var(--r-xl);
  padding:36px 40px;
  box-shadow:var(--shadow);
  min-width:0;
}
.article-body{
  font-size:17.5px;
  line-height:1.9;
  color:#D6E9EF;
  max-width:800px;
}
.article-body p{margin:0 0 1.15em}
.article-body h2{
  position:relative;
  margin:2em 0 .8em;
  padding-left:16px;
  font-size:clamp(1.3rem,2vw,1.6rem);
  line-height:1.5;
  font-weight:800;
  color:var(--text);
}
.article-body h2::before{
  content:"";
  position:absolute;
  left:0;top:.32em;
  width:3px;height:1.05em;
  border-radius:2px;
  background:linear-gradient(180deg,var(--cyan-bright),var(--cyan-deep));
  box-shadow:0 0 12px rgba(25,211,197,.6);
}
.article-body h3{
  margin:1.7em 0 .6em;
  font-size:1.16rem;
  font-weight:700;
  color:#F1FBFD;
}
.article-body ul,.article-body ol{padding-left:1.35em;margin-bottom:1.15em}
.article-body li{margin-bottom:.45em}
.article-body li::marker{color:var(--cyan)}
.article-body a{color:var(--cyan);border-bottom:1px solid rgba(25,211,197,.4)}
.article-body a:hover{border-bottom-color:var(--cyan)}
.article-body strong{color:#F4FEFF;font-weight:700}
.article-body blockquote{
  margin:1.5em 0;
  padding:16px 22px;
  background:rgba(255,122,89,.06);
  border-left:3px solid var(--coral);
  border-radius:0 var(--r-sm) var(--r-sm) 0;
  color:#CFE4EA;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{
  max-width:100%;
  height:auto;
  border-radius:16px;
  margin:1.4em 0;
  border:1px solid var(--line);
}
.article-body table{
  width:100%;
  border-collapse:collapse;
  margin:1.4em 0;
  font-size:15px;
  display:block;
  overflow-x:auto;
  white-space:nowrap;
}
.article-body thead th{
  background:var(--panel-3);
  color:var(--text);
  font-weight:700;
  text-align:left;
}
.article-body th,.article-body td{
  padding:12px 16px;
  border-bottom:1px solid var(--line);
}
.article-body tbody tr:hover{background:rgba(125,249,255,.04)}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2em 0}
.article-body code{
  padding:2px 7px;
  border-radius:6px;
  background:rgba(25,211,197,.10);
  color:#9DF3EA;
  font-size:.92em;
}
.empty-state{
  text-align:center;
  padding:56px 20px;
}
.empty-state i{font-size:38px;color:rgba(25,211,197,.5);margin-bottom:14px;display:block}
.empty-state p{font-size:17px;color:var(--text-2);margin-bottom:22px}

/* ---------- sidebar ---------- */
.sidebar{position:sticky;top:96px;display:flex;flex-direction:column;gap:18px}
.side-card{
  background:var(--panel-2);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:22px;
  box-shadow:var(--shadow);
  transition:border-color .2s ease,transform .2s ease;
}
.side-card:hover{border-color:var(--line-strong)}
.side-card h3{
  margin:0 0 14px;
  font-size:15px;
  font-weight:800;
  letter-spacing:.03em;
  color:var(--text);
  display:flex;align-items:center;gap:8px;
}
.side-card h3 i{color:var(--cyan);font-size:13px}
.fact-list{list-style:none;margin:0;padding:0;font-size:14px}
.fact-list li{
  display:flex;justify-content:space-between;gap:14px;
  padding:9px 0;
  border-bottom:1px dashed rgba(125,249,255,.12);
  color:var(--text-2);
}
.fact-list li:last-child{border-bottom:0;padding-bottom:0}
.fact-list span:last-child{color:var(--text);font-weight:600;text-align:right}
.side-posts{display:flex;flex-direction:column;gap:4px}
.side-post{
  display:flex;
  gap:12px;
  padding:11px 0;
  border-bottom:1px dashed rgba(125,249,255,.12);
  color:var(--text-2);
  align-items:flex-start;
}
.side-post:last-child{border-bottom:0;padding-bottom:0}
.side-post:hover .side-post-title{color:var(--cyan)}
.side-post img{
  width:66px;height:50px;flex:0 0 66px;
  object-fit:cover;
  border-radius:10px;
  border:1px solid var(--line);
}
.side-post-title{font-size:14px;line-height:1.6;color:#CFE4EA;transition:color .18s ease;display:block}
.side-post-meta{font-size:12px;color:var(--text-3);margin-top:3px;display:block}
.side-cta{
  background:linear-gradient(160deg,rgba(25,211,197,.14),rgba(11,36,49,.9));
  border:1px solid rgba(25,211,197,.32);
}
.side-cta h3{margin-bottom:8px}
.side-cta p{font-size:13.5px;color:var(--text-2);margin-bottom:16px;line-height:1.75}
.side-cta .btn{width:100%}

/* ---------- article footer blocks ---------- */
.article-foot{margin-top:36px;display:flex;flex-direction:column;gap:18px}
.foot-nav{
  display:flex;flex-wrap:wrap;gap:12px;
  padding-top:24px;
  border-top:1px solid var(--line);
}
.foot-nav .btn{flex:0 1 auto}

.related{padding:64px 0 0}
.section-head{margin-bottom:26px;max-width:720px}
.eyebrow{
  display:inline-block;
  font-size:12px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--cyan);
  margin-bottom:10px;
  font-weight:700;
}
.section-head h2{
  margin:0 0 10px;
  font-size:clamp(1.5rem,2.4vw,2.1rem);
  font-weight:800;
  line-height:1.35;
}
.section-head p{color:var(--text-2);font-size:15px;margin:0}
.related-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:var(--gap);
}
.rcard{
  display:flex;
  flex-direction:column;
  background:var(--panel-2);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;
  box-shadow:var(--shadow);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.rcard:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-lg)}
.rcard-media{aspect-ratio:4/3;overflow:hidden;background:#0A2230}
.rcard-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.rcard:hover .rcard-media img{transform:scale(1.04)}
.rcard-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.rcard-body h3{margin:0;font-size:16.5px;font-weight:700;line-height:1.55;color:var(--text)}
.rcard-body p{margin:0;font-size:14px;color:var(--text-2);line-height:1.75}
.rcard-body .link-arrow{margin-top:auto}

/* ---------- CTA band ---------- */
.cta-band{padding:64px 0 0}
.cta-panel{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  padding:40px 44px;
  border-radius:var(--r-xl);
  background:linear-gradient(150deg,rgba(25,211,197,.16),rgba(11,36,49,.94) 55%,rgba(8,30,43,.96));
  border:1px solid rgba(25,211,197,.30);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow-lg);
}
.cta-panel h2{margin:0 0 10px;font-size:clamp(1.4rem,2.2vw,1.9rem);font-weight:800;line-height:1.4}
.cta-panel p{margin:0;color:var(--text-2);font-size:14px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;flex:0 0 auto}

/* ---------- footer ---------- */
.site-footer{
  margin-top:80px;
  background:#041017;
  border-top:1px solid var(--line);
  padding:56px 0 24px;
  position:relative;
  z-index:1;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.7fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:36px;
}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:13.5px;color:var(--text-3);line-height:1.9;margin:0;max-width:340px}
.footer-col h4{
  margin:0 0 16px;
  font-size:14px;
  font-weight:700;
  color:var(--text);
  letter-spacing:.02em;
}
.footer-col a{
  display:block;
  padding:7px 0;
  font-size:13.5px;
  color:var(--text-3);
  transition:color .18s ease,transform .18s ease;
}
.footer-col a:hover{color:var(--cyan);transform:translateX(3px)}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding-top:22px;
  border-top:1px solid rgba(125,249,255,.10);
  font-size:13px;
  color:var(--text-3);
}
.to-top{
  width:44px;height:44px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--panel-2);
  border:1px solid var(--line);
  border-radius:50%;
  color:var(--text-2);
  cursor:pointer;
  transition:color .18s ease,border-color .18s ease,transform .18s ease;
}
.to-top:hover{color:var(--cyan);border-color:var(--cyan);transform:translateY(-3px)}

/* ---------- responsive ---------- */
@media (max-width:1180px){
  .nav-search{width:200px}
  .nav-search:focus-within{width:230px}
  .nav-link{padding:9px 9px;font-size:14.5px}
}
@media (max-width:1023px){
  .container{padding:0 24px}
  .nav-main{display:none}
  .nav-search{display:none}
  .menu-toggle{display:inline-flex}
  .layout{grid-template-columns:minmax(0,1fr);gap:26px}
  .sidebar{position:static}
  .reader{padding:28px}
  .article-body{font-size:17px;max-width:none}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-panel{flex-direction:column;align-items:flex-start;padding:32px}
  .footer-brand{grid-column:1/-1}
  .footer-brand p{max-width:none}
}
@media (max-width:767px){
  h1.article-title{font-size:clamp(1.6rem,6vw,2.1rem)}
  .article-head{padding-top:20px}
  .meta-row{gap:16px;font-size:12.5px;padding-bottom:20px}
  .cover{border-radius:16px}
  .article-wrap{padding:32px 0 0}
  .reader{padding:22px 20px;border-radius:20px}
  .article-body{font-size:16.5px;line-height:1.85}
  .related{padding-top:46px}
  .related-grid{grid-template-columns:minmax(0,1fr)}
  .cta-band{padding-top:46px}
  .crumbs .current{max-width:45vw}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .header-inner{gap:12px;height:64px}
  .brand-text{font-size:15.5px}
  .brand-mark{width:28px;height:28px;flex:0 0 28px}
  .btn-sm{padding:0 14px;font-size:13px;height:38px}
  .site-header{--h:64px}
  .drawer{padding-top:76px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:14px}
  .footer-col a{padding:10px 0;min-height:44px;display:flex;align-items:center}
  .article-body h2{font-size:1.22rem}
}

/* roulang page: category2 */
:root{
  --ink:#05141D;
  --ink-2:#081E2B;
  --panel:#0B2431;
  --panel-2:#0E2C3A;
  --cyan:#19D3C5;
  --cyan-deep:#0E9A92;
  --coral:#FF7A59;
  --txt:#E9F7FA;
  --muted:#9BB6C3;
  --dim:#6F8A97;
  --line:rgba(125,249,255,.14);
  --glass:rgba(125,249,255,.18);
  --r-sm:10px;
  --r-md:12px;
  --r-card:20px;
  --r-lg:26px;
  --shadow:0 10px 30px rgba(0,0,0,.28);
  --shadow-hover:0 18px 44px rgba(0,0,0,.36);
  --glow:0 0 0 1px rgba(25,211,197,.35),0 10px 30px rgba(25,211,197,.22);
  --container:1240px;
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--ink);
  color:var(--txt);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:
    radial-gradient(circle at 18% 12%,rgba(25,211,197,.08),transparent 45%),
    radial-gradient(circle at 82% 78%,rgba(255,122,89,.05),transparent 42%),
    repeating-linear-gradient(90deg,rgba(125,249,255,.035) 0 1px,transparent 1px 96px);
  opacity:.9;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .18s ease,border-color .18s ease,background-color .18s ease;}
a:hover,a:focus{color:var(--cyan);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:4px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px;position:relative;z-index:1;}
.section{padding:88px 0;}
.section-tight{padding:64px 0;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--cyan);font-weight:600;margin-bottom:16px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--cyan);opacity:.7;}
h1{font-size:clamp(2.1rem,4vw,3.5rem);line-height:1.18;font-weight:800;letter-spacing:-.01em;}
h2{font-size:clamp(1.6rem,2.5vw,2.3rem);line-height:1.3;font-weight:750;}
h3{font-size:1.2rem;font-weight:700;line-height:1.45;}
.lead{color:var(--muted);font-size:1.02rem;line-height:1.9;}
.muted{color:var(--muted);}
.dim{color:var(--dim);font-size:.86rem;}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(5,20,29,.86);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;align-items:center;gap:28px;
  height:72px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{width:32px;height:32px;}
.brand-text{font-size:1.06rem;font-weight:750;letter-spacing:.01em;color:var(--txt);white-space:nowrap;}
.brand:hover .brand-text{color:var(--cyan);}
.nav-main{display:flex;align-items:center;gap:6px;flex:1 1 auto;justify-content:center;}
.nav-link{
  position:relative;
  display:inline-block;
  padding:8px 12px;
  font-size:.94rem;font-weight:500;
  color:var(--muted);
  border-radius:var(--r-sm);
  transition:color .18s ease,background-color .18s ease;
}
.nav-link:hover{color:var(--txt);background:rgba(125,249,255,.06);}
.nav-link.is-active{color:var(--txt);font-weight:650;}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:-2px;height:2px;
  background:var(--cyan);border-radius:2px;box-shadow:0 0 12px rgba(25,211,197,.7);
}
.header-tools{display:flex;align-items:center;gap:14px;flex:0 0 auto;}
.nav-search{
  display:flex;align-items:center;gap:8px;
  width:240px;height:42px;
  padding:0 14px;
  background:var(--panel);
  border:1px solid rgba(125,249,255,.12);
  border-radius:999px;
  transition:width .22s ease,border-color .18s ease,box-shadow .18s ease;
}
.nav-search:focus-within{width:280px;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(25,211,197,.14);}
.nav-search i{color:var(--dim);font-size:.84rem;}
.nav-search input{
  flex:1 1 auto;width:100%;
  background:transparent;border:0;margin:0;
  color:var(--txt);font-size:.88rem;height:38px;
  box-shadow:none;
}
.nav-search input::placeholder{color:var(--dim);}
.nav-search input:focus{box-shadow:none;}
.link-quiet{font-size:.9rem;color:var(--muted);white-space:nowrap;}
.link-quiet:hover{color:var(--cyan);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;
  font-size:.95rem;font-weight:650;
  border-radius:999px;border:1px solid transparent;
  cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,border-color .18s ease,color .18s ease;
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,#2CE3D4,#12A79F);
  color:#04222A;
  box-shadow:var(--glow);
}
.btn-primary:hover{transform:translateY(-2px);color:#04222A;filter:brightness(1.06);}
.btn-primary:active{transform:translateY(0);box-shadow:inset 0 2px 6px rgba(0,0,0,.35);}
.btn-ghost{
  background:transparent;color:var(--txt);
  border-color:rgba(125,249,255,.28);
}
.btn-ghost:hover{border-color:var(--cyan);color:var(--cyan);transform:translateY(-2px);background:rgba(25,211,197,.06);}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{height:42px;padding:0 18px;font-size:.88rem;}
.btn-block{width:100%;}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--cyan);font-weight:600;font-size:.94rem;
  background:none;border:0;padding:0;cursor:pointer;
}
.btn-text i{transition:transform .18s ease;}
.btn-text:hover i{transform:translateX(4px);}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:12px;
  background:var(--panel);border:1px solid var(--line);color:var(--txt);cursor:pointer;
}
.nav-toggle:hover{border-color:var(--cyan);color:var(--cyan);}

/* ---------- off canvas ---------- */
.drawer{
  position:fixed;inset:0 0 0 auto;width:min(340px,86vw);
  background:var(--ink-2);
  border-left:1px solid var(--line);
  transform:translateX(105%);
  transition:transform .28s ease;
  z-index:120;
  display:flex;flex-direction:column;
  padding:22px 22px 32px;
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;}
.drawer-close{
  width:40px;height:40px;border-radius:12px;background:var(--panel);
  border:1px solid var(--line);color:var(--txt);cursor:pointer;
}
.drawer-close:hover{color:var(--cyan);border-color:var(--cyan);}
.drawer-nav{display:flex;flex-direction:column;gap:2px;margin-bottom:22px;}
.drawer-nav a{
  display:block;padding:13px 14px;font-size:1rem;color:var(--muted);
  border-left:2px solid transparent;border-radius:8px;
}
.drawer-nav a:hover{background:rgba(125,249,255,.06);color:var(--txt);}
.drawer-nav a.is-active{color:var(--txt);border-left-color:var(--cyan);background:rgba(25,211,197,.08);font-weight:650;}
.drawer .nav-search{width:100%;margin-bottom:14px;}
.drawer .nav-search:focus-within{width:100%;}
.drawer-foot{margin-top:auto;padding-top:20px;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:10px;}
.scrim{
  position:fixed;inset:0;background:rgba(2,10,15,.66);
  opacity:0;visibility:hidden;transition:opacity .28s ease,visibility .28s ease;
  z-index:110;
}
.scrim.is-open{opacity:1;visibility:visible;}

/* ---------- hero ---------- */
.hero{
  position:relative;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.hero-bg{
  position:absolute;inset:0;
  background-image:linear-gradient(180deg,rgba(5,20,29,.72) 0%,rgba(5,20,29,.9) 62%,var(--ink) 100%),url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  opacity:.95;
}
.hero-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;
  padding:84px 0 92px;
}
.batch-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;border-radius:999px;
  background:rgba(25,211,197,.12);
  border:1px solid rgba(25,211,197,.4);
  color:var(--cyan);font-size:.8rem;font-weight:650;letter-spacing:.04em;
  margin-bottom:20px;
}
.batch-tag .dot{width:7px;height:7px;border-radius:50%;background:var(--cyan);box-shadow:0 0 10px var(--cyan);}
.hero h1{margin-bottom:18px;}
.hero h1 .hl{color:var(--cyan);}
.hero-lead{max-width:560px;margin-bottom:26px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:28px;}
.hero-facts{display:flex;flex-wrap:wrap;gap:10px;}
.fact-chip{
  font-size:.8rem;padding:6px 13px;border-radius:999px;
  background:rgba(11,36,49,.8);border:1px solid var(--line);color:var(--muted);
}
.hero-stage{
  position:relative;
  padding:18px;
  border-radius:var(--r-lg);
  background:linear-gradient(160deg,rgba(20,66,80,.66),rgba(8,30,43,.9));
  border:1px solid var(--glass);
  box-shadow:var(--shadow-hover);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.stage-badge{
  position:absolute;top:28px;right:28px;z-index:3;
  padding:6px 14px;border-radius:999px;
  background:var(--coral);color:#2A0D06;
  font-size:.76rem;font-weight:750;letter-spacing:.06em;
  box-shadow:0 8px 20px rgba(255,122,89,.32);
}
.stage-img{
  width:100%;aspect-ratio:4/3;
  border-radius:18px;overflow:hidden;position:relative;
}
.stage-img img{width:100%;height:100%;object-fit:cover;}
.stage-img::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,20,29,0) 40%,rgba(5,20,29,.72) 100%);
}
.stage-info{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  margin-top:16px;padding:15px 16px;
  background:rgba(4,16,23,.72);border:1px solid var(--line);border-radius:16px;
}
.stage-info h3{font-size:1rem;margin-bottom:4px;}
.stage-info .spec{font-size:.8rem;color:var(--dim);}
.stage-info .price{color:var(--coral);font-weight:750;font-variant-numeric:tabular-nums;font-size:1.02rem;white-space:nowrap;}

/* ---------- section head ---------- */
.sec-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:28px;
  margin-bottom:38px;
}
.sec-head p{color:var(--muted);font-size:.96rem;max-width:620px;margin-top:10px;}

/* ---------- highlights ---------- */
.highlight-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap);}
.hl-card{
  background:var(--panel);
  border:1px solid var(--line);
  border-top:1px solid rgba(125,249,255,.26);
  border-radius:var(--r-card);
  padding:26px 24px;
  box-shadow:var(--shadow);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.hl-card:hover{transform:translateY(-4px);border-color:rgba(125,249,255,.4);box-shadow:var(--shadow-hover);}
.hl-icon{
  width:44px;height:44px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(25,211,197,.12);color:var(--cyan);font-size:1.05rem;margin-bottom:16px;
}
.hl-card h3{margin-bottom:8px;font-size:1.05rem;}
.hl-card p{color:var(--muted);font-size:.92rem;line-height:1.85;}
.hl-card .num{
  float:right;font-size:1.9rem;font-weight:800;color:rgba(25,211,197,.22);
  font-variant-numeric:tabular-nums;line-height:1;
}

/* ---------- new arrivals rail ---------- */
.rail-wrap{position:relative;}
.rail{
  display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap);
}
.rail-card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--shadow);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
  display:flex;flex-direction:column;
}
.rail-card:hover{transform:translateY(-4px);border-color:rgba(125,249,255,.42);box-shadow:var(--shadow-hover);}
.rail-media{position:relative;aspect-ratio:4/3;overflow:hidden;}
.rail-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.rail-card:hover .rail-media img{transform:scale(1.03);}
.pill-new{
  position:absolute;top:14px;left:14px;
  padding:5px 12px;border-radius:999px;
  background:rgba(255,122,89,.92);color:#2A0D06;
  font-size:.72rem;font-weight:750;letter-spacing:.06em;
}
.rail-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto;}
.rail-body h3{font-size:1.08rem;}
.rail-body p{color:var(--muted);font-size:.9rem;line-height:1.8;}
.spec-list{display:flex;flex-direction:column;gap:6px;margin:2px 0 6px;}
.spec-list li{
  font-size:.85rem;color:var(--muted);
  padding-left:16px;position:relative;
}
.spec-list li::before{
  content:"";position:absolute;left:0;top:.62em;
  width:6px;height:6px;border-radius:50%;
  background:var(--cyan);opacity:.8;
}
.rail-foot{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
}
.rail-price{color:var(--coral);font-weight:750;font-variant-numeric:tabular-nums;font-size:.98rem;}

/* ---------- compare table ---------- */
.table-shell{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--shadow);
}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;}
table.compare{
  width:100%;min-width:840px;border-collapse:collapse;margin:0;
  background:transparent;border:0;
}
table.compare th,table.compare td{
  padding:16px 20px;text-align:left;font-size:.9rem;
  border-bottom:1px solid var(--line);
  background:transparent;
}
table.compare thead th{
  background:var(--panel-2);
  color:var(--txt);font-weight:700;font-size:.86rem;
  letter-spacing:.04em;white-space:nowrap;
  border-bottom:1px solid rgba(125,249,255,.2);
}
table.compare tbody tr:hover td{background:rgba(25,211,197,.05);}
table.compare tbody tr:last-child td{border-bottom:0;}
table.compare td:first-child{font-weight:650;color:var(--txt);white-space:nowrap;}
table.compare td{color:var(--muted);}
table.compare .col-key{background:rgba(25,211,197,.08);color:#CFF6F2;}
table.compare .col-key-h{background:rgba(25,211,197,.2);color:#DFFBFA;}
.status{
  display:inline-block;padding:3px 10px;border-radius:999px;
  font-size:.76rem;font-weight:650;white-space:nowrap;
}
.status-on{background:rgba(25,211,197,.16);color:var(--cyan);border:1px solid rgba(25,211,197,.36);}
.status-soon{background:rgba(255,122,89,.14);color:#FFB5A1;border:1px solid rgba(255,122,89,.36);}
.table-note{padding:14px 20px;font-size:.82rem;color:var(--dim);border-top:1px solid var(--line);}

/* ---------- steps ---------- */
.steps{
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;
  border-top:1px solid var(--line);
  padding-top:34px;
  position:relative;
}
.step{position:relative;padding-right:26px;}
.step:not(:last-child)::after{
  content:"";position:absolute;top:15px;right:0;width:calc(100% - 46px);
  height:1px;background:linear-gradient(90deg,rgba(25,211,197,.5),rgba(25,211,197,.06));
  transform:translateX(0);left:44px;
}
.step-num{
  width:34px;height:34px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:rgba(25,211,197,.14);border:1px solid rgba(25,211,197,.42);
  color:var(--cyan);font-weight:750;font-size:.88rem;
  font-variant-numeric:tabular-nums;margin-bottom:14px;position:relative;z-index:2;
  background-color:#0B2431;
}
.step h3{font-size:1rem;margin-bottom:6px;}
.step p{font-size:.88rem;color:var(--muted);line-height:1.8;}

/* ---------- faq ---------- */
.faq-band{background:var(--ink-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.faq-layout{display:grid;grid-template-columns:.85fr 1.15fr;gap:56px;align-items:start;}
.faq-list{display:flex;flex-direction:column;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:first-child{border-top:1px solid var(--line);}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 2px;font-size:1rem;font-weight:650;color:var(--txt);
  transition:color .18s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--cyan);}
.faq-item summary .sign{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  border:1px solid rgba(125,249,255,.3);color:var(--cyan);font-size:.76rem;
  transition:transform .18s ease,background-color .18s ease;
}
.faq-item[open] summary .sign{transform:rotate(45deg);background:rgba(25,211,197,.14);}
.faq-answer{
  padding:0 2px 22px;font-size:.93rem;color:var(--muted);line-height:1.9;max-width:96%;
}
.faq-aside{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--shadow);
}
.faq-aside h3{font-size:1.05rem;margin-bottom:10px;}
.faq-aside p{color:var(--muted);font-size:.9rem;margin-bottom:18px;}
.faq-aside .mini-links{display:flex;flex-direction:column;gap:10px;margin-top:20px;padding-top:18px;border-top:1px solid var(--line);}
.faq-aside .mini-links a{font-size:.9rem;color:var(--muted);display:flex;align-items:center;gap:8px;}
.faq-aside .mini-links a:hover{color:var(--cyan);}
.faq-aside .mini-links i{font-size:.72rem;color:var(--cyan);}

/* ---------- final cta ---------- */
.cta-panel{
  position:relative;
  display:grid;grid-template-columns:1.15fr .85fr;gap:36px;align-items:center;
  padding:48px 46px;
  border-radius:28px;
  background:linear-gradient(150deg,rgba(22,78,92,.75),rgba(8,30,43,.92));
  border:1px solid var(--glass);
  box-shadow:var(--shadow-hover);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  overflow:hidden;
}
.cta-panel::before{
  content:"";position:absolute;right:-80px;top:-80px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(25,211,197,.22),transparent 68%);
}
.cta-panel h2{margin-bottom:12px;position:relative;}
.cta-panel p{color:var(--muted);font-size:.95rem;position:relative;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end;position:relative;}
.cta-note{grid-column:1/-1;font-size:.8rem;color:var(--dim);margin-top:6px;position:relative;}

/* ---------- footer ---------- */
.site-footer{
  background:#041017;
  border-top:1px solid var(--line);
  padding:64px 0 28px;
  margin-top:0;
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;
  padding-bottom:44px;border-bottom:1px solid var(--line);
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{color:var(--dim);font-size:.88rem;line-height:1.85;max-width:360px;}
.footer-col h4{font-size:.88rem;font-weight:700;margin-bottom:16px;color:var(--txt);letter-spacing:.04em;}
.footer-col a{display:block;font-size:.88rem;color:var(--muted);padding:6px 0;min-height:30px;}
.footer-col a:hover{color:var(--cyan);}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding-top:24px;font-size:.82rem;color:var(--dim);flex-wrap:wrap;
}
.to-top{
  width:40px;height:40px;border-radius:50%;
  background:var(--panel);border:1px solid var(--line);color:var(--muted);
  cursor:pointer;display:inline-flex;align-items:center;justify-content:center;
  transition:color .18s ease,border-color .18s ease,transform .18s ease;
}
.to-top:hover{color:var(--cyan);border-color:var(--cyan);transform:translateY(-2px);}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .container{padding:0 24px;}
  .nav-search{width:190px;}
  .nav-search:focus-within{width:210px;}
  .nav-main{gap:2px;}
  .nav-link{padding:8px 9px;font-size:.9rem;}
}
@media (max-width:1023px){
  .nav-main,.header-tools .nav-search,.header-tools .link-quiet{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-inner{justify-content:space-between;}
  .hero-inner{grid-template-columns:1fr;gap:40px;padding:64px 0 72px;}
  .section{padding:64px 0;}
  .highlight-grid{grid-template-columns:1fr;gap:16px;}
  .rail{grid-template-columns:1fr;gap:18px;}
  .faq-layout{grid-template-columns:1fr;gap:32px;}
  .cta-panel{grid-template-columns:1fr;padding:36px 28px;text-align:left;}
  .cta-actions{justify-content:flex-start;}
  .steps{grid-template-columns:repeat(2,1fr);gap:28px 20px;}
  .step:not(:last-child)::after{display:none;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .sec-head{flex-direction:column;align-items:flex-start;gap:14px;}
}
@media (max-width:639px){
  body{font-size:15.5px;}
  .container{padding:0 16px;}
  .header-inner{height:64px;gap:12px;}
  .brand-text{font-size:.98rem;}
  .header-tools .btn{padding:0 16px;height:42px;font-size:.86rem;}
  .hero-inner{padding:48px 0 56px;}
  h1{font-size:2rem;}
  .hero-cta{gap:10px;}
  .hero-cta .btn{width:100%;}
  .section{padding:48px 0;}
  .section-tight{padding:40px 0;}
  .hl-card{padding:22px 20px;}
  .rail-card .rail-body{padding:18px;}
  .stage-info{flex-direction:column;align-items:flex-start;gap:8px;}
  .steps{grid-template-columns:1fr;gap:24px;}
  .step{padding-right:0;}
  .cta-panel{padding:28px 20px;border-radius:22px;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:14px;}
  .faq-aside{padding:22px 18px;}
  table.compare th,table.compare td{padding:13px 15px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important;}
}

/* roulang page: category3 */
:root{
  --bg:#05141D;
  --bg-2:#081E2B;
  --panel:#0B2431;
  --panel-2:#0E2C3A;
  --line:rgba(125,249,255,.14);
  --line-strong:rgba(125,249,255,.26);
  --text:#E9F7FA;
  --text-2:#9BB6C3;
  --text-3:#6F8A97;
  --teal:#19D3C5;
  --teal-soft:#2CE3D4;
  --teal-deep:#0E9A92;
  --coral:#FF7A59;
  --r-sm:12px;
  --r-md:18px;
  --r-lg:26px;
  --shadow:0 10px 30px rgba(0,0,0,.28);
  --shadow-hover:0 18px 44px rgba(0,0,0,.36);
  --container:1240px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.no-scroll{overflow:hidden;}
h1,h2,h3,h4,h5{color:var(--text);font-weight:700;line-height:1.3;margin:0;letter-spacing:.01em;}
p{margin:0 0 1em;color:var(--text-2);}
a{color:inherit;text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--teal);}
ul,ol{margin:0;padding:0;list-style:none;}
img{max-width:100%;display:block;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--teal);outline-offset:3px;border-radius:6px;}
::selection{background:rgba(25,211,197,.28);color:#fff;}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 32px;
}
.section{padding:88px 0;}
.section-tight{padding:64px 0;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.08em;font-weight:600;
  color:var(--teal);text-transform:uppercase;
  margin-bottom:16px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--teal);border-radius:2px;display:inline-block;}
.section-head{max-width:720px;margin-bottom:40px;}
.section-head h2{font-size:clamp(1.75rem,2.6vw,2.5rem);margin-bottom:14px;}
.section-head p{color:var(--text-2);font-size:15px;margin-bottom:0;}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,border-color .18s ease,color .18s ease;
}
.btn-primary{
  background:linear-gradient(135deg,var(--teal-soft),var(--teal-deep));
  color:#04262A;
  box-shadow:0 0 0 1px rgba(25,211,197,.35),0 10px 30px rgba(25,211,197,.22);
}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.06);color:#04262A;}
.btn-primary:active{transform:translateY(0);box-shadow:inset 0 2px 10px rgba(0,0,0,.35);}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:var(--text);}
.btn-ghost:hover{border-color:var(--teal);color:var(--teal);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);background:rgba(25,211,197,.08);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}
.link-arrow{display:inline-flex;align-items:center;gap:8px;color:var(--teal);font-size:14px;font-weight:600;}
.link-arrow i{transition:transform .18s ease;font-size:12px;}
.link-arrow:hover i{transform:translateX(4px);}

/* 头部 */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(5,20,29,.86);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;align-items:center;gap:28px;
  min-height:72px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{width:32px;height:32px;flex-shrink:0;}
.brand-text{font-size:18px;font-weight:800;letter-spacing:.01em;color:var(--text);}
.brand:hover .brand-text{color:var(--teal);}
.nav-main{display:flex;align-items:center;gap:26px;flex:1;}
.nav-link{
  position:relative;font-size:15px;color:var(--text-2);padding:26px 0;font-weight:500;
}
.nav-link:hover{color:var(--text);}
.nav-link.is-active{color:var(--text);font-weight:600;}
.nav-link.is-active::after{
  content:"";position:absolute;left:0;right:0;bottom:16px;height:2px;
  background:var(--teal);border-radius:2px;box-shadow:0 0 10px rgba(25,211,197,.75);
}
.header-actions{display:flex;align-items:center;gap:14px;margin-left:auto;}
.nav-search{
  display:flex;align-items:center;gap:8px;
  width:220px;height:40px;padding:0 14px;
  background:rgba(10,34,48,.85);
  border:1px solid var(--line);border-radius:999px;
  transition:width .22s ease,border-color .18s ease,box-shadow .18s ease;
}
.nav-search:focus-within{width:262px;border-color:var(--teal);box-shadow:0 0 0 3px rgba(25,211,197,.14);}
.nav-search i{color:var(--text-3);font-size:13px;}
.nav-search input{
  border:0;background:transparent;color:var(--text);font-size:13px;width:100%;
  outline:none;line-height:1.4;
}
.nav-search input::placeholder{color:var(--text-3);}
.link-quiet{font-size:14px;color:var(--text-2);}
.link-quiet:hover{color:var(--teal);}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  background:rgba(10,34,48,.9);border:1px solid var(--line);color:var(--text);
  font-size:16px;cursor:pointer;align-items:center;justify-content:center;
}
.mobile-nav{
  display:none;
  border-top:1px solid var(--line);
  background:#04121A;
  padding:14px 0 22px;
}
.mobile-nav.is-open{display:block;}
.mobile-nav .m-link{
  display:block;padding:12px 4px;font-size:16px;color:var(--text-2);
  border-bottom:1px solid rgba(125,249,255,.08);
}
.mobile-nav .m-link.is-active{color:var(--teal);border-left:3px solid var(--teal);padding-left:12px;}
.mobile-nav .m-actions{display:flex;gap:12px;margin-top:18px;flex-wrap:wrap;}

/* Hero */
.hero-guide{
  position:relative;
  padding:76px 0 68px;
  background:
    radial-gradient(900px 420px at 82% 12%, rgba(25,211,197,.16), transparent 62%),
    linear-gradient(180deg, rgba(5,20,29,.90), rgba(5,20,29,.97)),
    url("/assets/images/backpic/back-1.png") center/cover no-repeat;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.hero-guide::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(125,249,255,.10) 1px, transparent 1px);
  background-size:26px 26px;opacity:.35;
}
.hero-guide .container{position:relative;z-index:2;}
.hero-guide h1{
  font-size:clamp(2.25rem,4.2vw,3.5rem);
  font-weight:800;letter-spacing:-.01em;margin-bottom:18px;
}
.hero-guide .lead{
  font-size:16px;color:var(--text-2);max-width:560px;margin-bottom:26px;
}
.hero-search{
  display:flex;align-items:center;gap:10px;
  max-width:520px;height:52px;padding:0 8px 0 18px;
  background:rgba(11,36,49,.92);
  border:1px solid var(--line-strong);border-radius:999px;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.hero-search:focus-within{border-color:var(--teal);box-shadow:0 0 0 3px rgba(25,211,197,.14);}
.hero-search i{color:var(--teal);font-size:15px;}
.hero-search input{
  flex:1;border:0;background:transparent;outline:none;color:var(--text);font-size:15px;
}
.hero-search input::placeholder{color:var(--text-3);}
.hero-search .btn{height:38px;padding:0 20px;font-size:14px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;border-radius:999px;font-size:13px;
  background:rgba(14,44,58,.8);border:1px solid var(--line);color:var(--text-2);
}
.tag-teal{color:var(--teal);border-color:rgba(25,211,197,.35);background:rgba(25,211,197,.08);}
.tag-coral{color:var(--coral);border-color:rgba(255,122,89,.35);background:rgba(255,122,89,.08);}

.quick-card{
  background:linear-gradient(180deg, rgba(14,44,58,.92), rgba(11,36,49,.96));
  border:1px solid var(--line-strong);
  border-radius:var(--r-lg);
  padding:28px;
  box-shadow:var(--shadow);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
}
.quick-card h2{font-size:18px;margin-bottom:6px;}
.quick-card .qc-sub{font-size:13px;color:var(--text-3);margin-bottom:20px;}
.quick-step{
  display:flex;gap:16px;padding:16px 0;border-bottom:1px dashed rgba(125,249,255,.14);
}
.quick-step:last-child{border-bottom:0;padding-bottom:0;}
.quick-num{
  flex-shrink:0;width:38px;height:38px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:800;color:#04262A;
  background:linear-gradient(135deg,var(--teal-soft),var(--teal-deep));
  font-variant-numeric:tabular-nums;
}
.quick-step h3{font-size:15px;margin-bottom:4px;}
.quick-step p{font-size:13px;line-height:1.7;margin:0;color:var(--text-2);}

/* 快速开始步骤条 */
.start-band{
  background:var(--bg-2);
  border-bottom:1px solid var(--line);
  padding:52px 0;
}
.start-track{
  display:grid;grid-template-columns:repeat(3,1fr);gap:0;
  position:relative;
}
.start-item{
  position:relative;padding:0 28px;
  border-left:1px solid rgba(125,249,255,.16);
}
.start-item:first-child{border-left:0;padding-left:0;}
.start-item:last-child{padding-right:0;}
.start-item .si-num{
  font-size:13px;font-weight:700;color:var(--teal);letter-spacing:.12em;
  font-variant-numeric:tabular-nums;margin-bottom:8px;display:block;
}
.start-item h3{font-size:17px;margin-bottom:6px;}
.start-item p{font-size:14px;margin:0;color:var(--text-2);}

/* 指南列表 */
.guides-section{background:var(--bg);}
.guide-grid{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;
}
.guide-card{
  display:flex;flex-direction:column;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;
  box-shadow:var(--shadow);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.guide-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-hover);}
.guide-thumb{
  position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--panel-2);
}
.guide-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.guide-card:hover .guide-thumb img{transform:scale(1.03);}
.guide-thumb .g-index{
  position:absolute;left:14px;top:14px;
  min-width:34px;height:26px;padding:0 9px;border-radius:8px;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(4,18,26,.86);border:1px solid var(--line-strong);
  font-size:12px;font-weight:700;color:var(--teal);font-variant-numeric:tabular-nums;
}
.guide-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1;}
.guide-meta{display:flex;align-items:center;gap:10px;margin-bottom:10px;flex-wrap:wrap;}
.chip{
  display:inline-flex;align-items:center;
  padding:3px 10px;border-radius:999px;font-size:12px;
  background:rgba(25,211,197,.10);border:1px solid rgba(25,211,197,.28);
  color:var(--teal);
}
.chip-muted{background:rgba(111,138,151,.10);border-color:rgba(111,138,151,.28);color:var(--text-2);}
.read-time{font-size:12px;color:var(--text-3);}
.guide-body h3{font-size:17px;margin-bottom:8px;line-height:1.5;}
.guide-body p{font-size:14px;line-height:1.75;color:var(--text-2);margin-bottom:16px;}
.guide-body .link-arrow{margin-top:auto;}

/* 侧栏 */
.side-stack{display:flex;flex-direction:column;gap:20px;}
.side-card{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:22px;
  box-shadow:var(--shadow);
}
.side-card h3{font-size:16px;margin-bottom:14px;}
.hot-list li+li{border-top:1px solid rgba(125,249,255,.08);}
.hot-list a{
  display:flex;gap:12px;align-items:flex-start;
  padding:12px 0;font-size:14px;color:var(--text-2);line-height:1.6;
}
.hot-list a:hover{color:var(--teal);}
.hot-list .hn{
  flex-shrink:0;width:22px;height:22px;border-radius:6px;
  display:flex;align-items:center;justify-content:center;
  font-size:11px;font-weight:700;color:var(--teal);
  background:rgba(25,211,197,.10);font-variant-numeric:tabular-nums;
}
.side-card.accent{
  background:linear-gradient(160deg, rgba(25,211,197,.14), rgba(11,36,49,.98) 62%);
  border-color:rgba(25,211,197,.30);
}
.side-card.accent p{font-size:13.5px;color:var(--text-2);margin-bottom:16px;}

/* 使用要点 */
.points-section{background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.points-media{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line-strong);box-shadow:var(--shadow);
  aspect-ratio:4/3;
}
.points-media img{width:100%;height:100%;object-fit:cover;}
.points-media .pm-badge{
  position:absolute;left:18px;bottom:18px;
  padding:8px 16px;border-radius:999px;font-size:13px;
  background:rgba(4,18,26,.82);border:1px solid var(--line-strong);color:var(--teal);
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
}
.point-item{display:flex;gap:16px;padding:20px 0;border-bottom:1px solid rgba(125,249,255,.10);}
.point-item:last-child{border-bottom:0;padding-bottom:0;}
.point-item:first-child{padding-top:6px;}
.point-item i{
  flex-shrink:0;width:40px;height:40px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(25,211,197,.10);border:1px solid rgba(25,211,197,.26);
  color:var(--teal);font-size:16px;
}
.point-item h3{font-size:16px;margin-bottom:4px;}
.point-item p{font-size:14px;margin:0;color:var(--text-2);}

/* FAQ */
.faq-section{background:var(--bg);}
.faq-list{border-top:1px solid rgba(125,249,255,.12);}
.faq-item{border-bottom:1px solid rgba(125,249,255,.12);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  background:transparent;border:0;cursor:pointer;text-align:left;
  padding:22px 4px;color:var(--text);font-size:16.5px;font-weight:600;line-height:1.6;
  transition:color .18s ease;
}
.faq-q:hover{color:var(--teal);}
.faq-q .fi{
  flex-shrink:0;width:28px;height:28px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line-strong);color:var(--teal);font-size:12px;
  transition:transform .2s ease,background .2s ease;
}
.faq-item.is-open .faq-q .fi{transform:rotate(180deg);background:rgba(25,211,197,.14);}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .22s ease;
}
.faq-a p{
  font-size:14.5px;line-height:1.85;color:var(--text-2);
  padding:0 4px 22px;margin:0;max-width:820px;
}

/* CTA */
.cta-section{padding:0 0 88px;}
.cta-panel{
  position:relative;overflow:hidden;
  border-radius:28px;
  padding:52px 48px;
  background:
    radial-gradient(700px 300px at 88% 20%, rgba(25,211,197,.22), transparent 60%),
    linear-gradient(140deg, rgba(14,44,58,.96), rgba(8,30,43,.98));
  border:1px solid var(--line-strong);
  box-shadow:var(--shadow-hover);
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.cta-panel h2{font-size:clamp(1.5rem,2.4vw,2.1rem);margin-bottom:10px;}
.cta-panel p{font-size:14px;color:var(--text-2);margin:0;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}
.cta-note{
  width:100%;font-size:12.5px;color:var(--text-3);
  border-top:1px solid rgba(125,249,255,.12);padding-top:18px;margin-top:6px;
}

/* 页脚 */
.site-footer{background:#041017;border-top:1px solid var(--line);padding:64px 0 26px;}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:13.5px;line-height:1.85;color:var(--text-3);max-width:340px;margin:0;}
.footer-col h4{font-size:14px;font-weight:600;margin-bottom:16px;color:var(--text);}
.footer-col a{
  display:block;padding:8px 0;font-size:13.5px;color:var(--text-3);
  transition:color .18s ease,transform .18s ease;min-height:44px;
}
.footer-col a:hover{color:var(--teal);transform:translateX(3px);}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(125,249,255,.10);
  font-size:12.5px;color:var(--text-3);
}
.to-top{
  width:42px;height:42px;border-radius:50%;
  background:rgba(14,44,58,.9);border:1px solid var(--line-strong);
  color:var(--teal);cursor:pointer;font-size:14px;
  display:inline-flex;align-items:center;justify-content:center;
  transition:transform .18s ease,border-color .18s ease,background .18s ease;
}
.to-top:hover{transform:translateY(-3px);border-color:var(--teal);background:rgba(25,211,197,.14);}

/* 响应式 */
@media (max-width:1023px){
  .container{padding:0 24px;}
  .section{padding:64px 0;}
  .nav-main,.nav-search,.link-quiet{display:none;}
  .nav-toggle{display:inline-flex;}
  .hero-guide{padding:56px 0 52px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .guide-grid{grid-template-columns:1fr;}
  .cta-panel{padding:40px 32px;}
  .points-media{aspect-ratio:16/10;margin-bottom:28px;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .section{padding:52px 0;}
  .section-tight{padding:44px 0;}
  .hero-guide h1{font-size:clamp(1.9rem,7vw,2.3rem);}
  .hero-guide .lead{font-size:15px;}
  .hero-search{height:48px;padding-left:14px;}
  .hero-search .btn{padding:0 16px;font-size:13px;height:34px;}
  .start-track{grid-template-columns:1fr;gap:0;}
  .start-item{border-left:0;border-top:1px solid rgba(125,249,255,.16);padding:20px 0;}
  .start-item:first-child{border-top:0;padding-top:0;}
  .start-item:last-child{padding-bottom:0;}
  .quick-card{padding:22px;margin-top:32px;}
  .cta-panel{padding:32px 22px;border-radius:22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 100%;}
  .cta-note{font-size:12px;}
  .footer-grid{grid-template-columns:1fr;gap:20px;}
  .footer-brand p{max-width:none;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:14px;}
  .faq-q{font-size:15.5px;padding:18px 2px;}
  .point-item{padding:16px 0;}
  .cta-section{padding:0 0 52px;}
}
@media (max-width:519px){
  .header-inner{gap:14px;}
  .brand-text{font-size:16px;}
  .header-actions .btn-sm{height:38px;padding:0 14px;font-size:13px;}
  .guide-body{padding:18px;}
  .guide-grid{gap:16px;}
  .hero-tags .tag{font-size:12px;padding:5px 12px;}
  .side-card{padding:18px;}
}

/* roulang page: category5 */
/* ===== 设计变量 ===== */
:root{
  --bg:#05141D;
  --bg-soft:#081E2B;
  --panel:#0B2431;
  --panel-2:#0E2C3A;
  --line:rgba(125,249,255,.14);
  --line-strong:rgba(125,249,255,.26);
  --primary:#19D3C5;
  --primary-deep:#0E9A92;
  --primary-soft:rgba(25,211,197,.12);
  --accent:#FF7A59;
  --text:#E9F7FA;
  --text-2:#9BB6C3;
  --text-3:#6F8A97;
  --radius-s:12px;
  --radius-m:20px;
  --radius-l:28px;
  --shadow:0 10px 30px rgba(0,0,0,.28);
  --shadow-hover:0 18px 44px rgba(0,0,0,.36);
  --container:1240px;
  --font:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}

/* ===== 基础重置 ===== */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  background-image:
    radial-gradient(900px 520px at 82% -8%, rgba(25,211,197,.10), transparent 62%),
    radial-gradient(680px 420px at 4% 12%, rgba(255,122,89,.06), transparent 60%),
    linear-gradient(180deg,#05141D 0%,#041017 100%);
  background-attachment:fixed;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:var(--primary);text-decoration:none;transition:color .2s ease}
a:hover{color:#5FF0E4}
p{margin:0 0 1em}
h1,h2,h3,h4{margin:0 0 .6em;line-height:1.32;font-weight:700;color:var(--text)}
ul,ol{margin:0 0 1em;padding-left:1.2em}
button{font-family:inherit}
input,select,textarea{font-family:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px}
.foundation-default-reset{display:none}

/* 覆盖 Foundation 默认外观 */
body,button,input,select,textarea{font-family:var(--font)}
.menu a,.accordion-title,.button{color:inherit}
.accordion,.accordion-item,.accordion-title,.accordion-content{background:transparent;border:0;color:var(--text)}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 32px;
}
.row{max-width:var(--container)}
.section{padding:88px 0}
.section--tight{padding:64px 0}
.section-head{max-width:740px;margin-bottom:42px}
.section-head p{color:var(--text-2);font-size:16px;margin:0}
.eyebrow{
  display:inline-block;
  font-size:12px;
  font-weight:700;
  letter-spacing:.14em;
  color:var(--primary);
  margin-bottom:14px;
  text-transform:uppercase;
}
h2{font-size:clamp(1.75rem,2.6vw,2.5rem);font-weight:800;letter-spacing:-.01em}
h3{font-size:1.25rem}
.lead{color:var(--text-2);font-size:17px;line-height:1.85;margin:0}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:9px;
  height:48px;
  padding:0 24px;
  border-radius:var(--radius-s);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  text-decoration:none;
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,filter .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,#2CE3D4 0%,#0E9A92 100%);
  color:#04222A;
  box-shadow:0 0 0 1px rgba(25,211,197,.35),0 10px 30px rgba(25,211,197,.22);
}
.btn-primary:hover,.btn-primary:focus{
  color:#04222A;
  transform:translateY(-2px);
  filter:brightness(1.07);
  box-shadow:0 0 0 1px rgba(25,211,197,.5),0 16px 36px rgba(25,211,197,.3);
}
.btn-primary:active{transform:translateY(0);box-shadow:inset 0 2px 10px rgba(0,0,0,.25)}
.btn-ghost{
  background:transparent;
  border-color:var(--line-strong);
  color:var(--text);
}
.btn-ghost:hover,.btn-ghost:focus{
  color:var(--primary);
  border-color:rgba(25,211,197,.55);
  background:rgba(25,211,197,.07);
  transform:translateY(-2px);
}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:10px}
.btn-block{width:100%}
.btn[disabled]{opacity:.5;cursor:not-allowed;transform:none}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  font-weight:600;
  color:var(--primary);
}
.link-arrow i{transition:transform .2s ease;font-size:12px}
.link-arrow:hover i{transform:translateX(4px)}

/* ===== 标签 ===== */
.chip{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:7px 14px;
  border-radius:999px;
  font-size:13px;
  line-height:1.4;
  color:var(--text-2);
  background:rgba(255,255,255,.03);
  border:1px solid var(--line);
  transition:all .2s ease;
}
a.chip:hover{color:var(--primary);border-color:rgba(25,211,197,.45);background:var(--primary-soft)}
.chip.is-active{
  color:var(--primary);
  border-color:rgba(25,211,197,.5);
  background:var(--primary-soft);
}
.chip-accent{color:var(--accent);border-color:rgba(255,122,89,.4);background:rgba(255,122,89,.1)}
.chip-row{display:flex;flex-wrap:wrap;gap:10px}

/* ===== 头部导航 ===== */
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  background:rgba(5,20,29,.86);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  height:72px;
  display:flex;
  align-items:center;
  gap:26px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
  color:var(--text);
  text-decoration:none;
}
.brand:hover{color:var(--text)}
.brand-mark{width:32px;height:32px;flex-shrink:0}
.brand-text{
  font-size:18px;
  font-weight:800;
  letter-spacing:.01em;
  color:var(--text);
  white-space:nowrap;
}
.nav-main{
  display:flex;
  align-items:center;
  gap:6px;
  margin-right:auto;
}
.nav-link{
  position:relative;
  padding:8px 12px;
  font-size:15px;
  color:var(--text-2);
  border-radius:8px;
  transition:color .2s ease,background-color .2s ease;
  white-space:nowrap;
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.04)}
.nav-link.is-active{color:var(--text);font-weight:600}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:12px;
  right:12px;
  bottom:-2px;
  height:2px;
  border-radius:2px;
  background:var(--primary);
  box-shadow:0 0 10px rgba(25,211,197,.75);
}
.nav-actions{display:flex;align-items:center;gap:14px;flex-shrink:0}
.nav-search{
  display:flex;
  align-items:center;
  width:240px;
  height:40px;
  padding:0 14px;
  border-radius:999px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  transition:width .25s ease,border-color .2s ease,box-shadow .2s ease;
}
.nav-search:focus-within{
  width:280px;
  border-color:rgba(25,211,197,.55);
  box-shadow:0 0 0 3px rgba(25,211,197,.12);
}
.nav-search i{font-size:13px;color:var(--text-3);margin-right:8px}
.nav-search input{
  flex:1;
  min-width:0;
  height:100%;
  border:0;
  background:transparent;
  color:var(--text);
  font-size:14px;
  outline:none;
}
.nav-search input::placeholder{color:var(--text-3)}
.nav-login{font-size:14px;color:var(--text-2)}
.nav-login:hover{color:var(--primary)}
.nav-toggle{
  display:none;
  width:40px;
  height:40px;
  border-radius:10px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  color:var(--text);
  cursor:pointer;
}
.mobile-panel{display:none;border-top:1px solid var(--line);background:#061924}
.mobile-panel.is-open{display:block}
.mobile-panel .mp-inner{padding:18px 0 24px}
.mobile-panel a.mp-link{
  display:block;
  padding:12px 4px;
  font-size:16px;
  color:var(--text-2);
  border-bottom:1px solid var(--line);
}
.mobile-panel a.mp-link.is-active{color:var(--primary);border-left:2px solid var(--primary);padding-left:12px}
.mobile-panel .mp-search{
  display:flex;
  align-items:center;
  height:46px;
  padding:0 16px;
  margin:16px 0 14px;
  border-radius:12px;
  background:#0A2230;
  border:1px solid #1E3C4A;
}
.mobile-panel .mp-search i{color:var(--text-3);margin-right:10px}
.mobile-panel .mp-search input{flex:1;border:0;background:transparent;color:var(--text);outline:none;font-size:15px}

/* ===== Hero ===== */
.hero-cate{padding:64px 0 72px;position:relative;overflow:hidden}
.hero-cate::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:linear-gradient(rgba(125,249,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(125,249,255,.05) 1px,transparent 1px);
  background-size:64px 64px;
  opacity:.35;
  pointer-events:none;
  mask-image:radial-gradient(70% 60% at 50% 40%,#000 20%,transparent 100%);
  -webkit-mask-image:radial-gradient(70% 60% at 50% 40%,#000 20%,transparent 100%);
}
.hero-row{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:48px;
  position:relative;
}
.hero-row > .columns{padding-left:0;padding-right:0}
.hero-copy{flex:0 0 calc(41.6667% - 24px);max-width:calc(41.6667% - 24px)}
.hero-visual{flex:1 1 0;min-width:0}
.hero-cate h1{
  font-size:clamp(2.1rem,4vw,3.5rem);
  font-weight:800;
  letter-spacing:-.015em;
  margin-bottom:18px;
}
.hero-cate .lead{max-width:520px;margin-bottom:26px}
.hero-cate .chip-row{margin-bottom:30px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.hero-media{
  position:relative;
  border-radius:var(--radius-l);
  overflow:hidden;
  border:1px solid var(--line-strong);
  background:#081E2B;
  box-shadow:var(--shadow-hover);
  aspect-ratio:21/13;
}
.hero-media img{width:100%;height:100%;object-fit:cover}
.hero-media::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(5,20,29,.12) 0%,rgba(5,20,29,.78) 100%);
}
.date-badge{
  position:absolute;
  left:24px;
  bottom:24px;
  z-index:2;
  display:flex;
  align-items:center;
  gap:14px;
  padding:16px 20px;
  border-radius:18px;
  background:rgba(11,36,49,.62);
  border:1px solid rgba(125,249,255,.28);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:0 14px 34px rgba(0,0,0,.4);
}
.date-badge .db-num{
  font-size:30px;
  font-weight:800;
  line-height:1;
  color:var(--primary);
  font-variant-numeric:tabular-nums;
}
.date-badge .db-num small{display:block;font-size:12px;font-weight:600;color:var(--text-3);letter-spacing:.1em;margin-top:6px}
.date-badge .db-text{font-size:13px;color:var(--text-2);line-height:1.6}
.date-badge .db-text strong{display:block;color:var(--text);font-size:14px;font-weight:700}

/* ===== 时间轴 ===== */
.timeline{list-style:none;margin:0;padding:0;position:relative}
.timeline::before{
  content:"";
  position:absolute;
  left:82px;
  top:14px;
  bottom:14px;
  width:2px;
  border-radius:2px;
  background:linear-gradient(180deg,rgba(25,211,197,.65),rgba(25,211,197,.16) 55%,rgba(125,249,255,.04));
}
.timeline-item{position:relative;display:flex;gap:34px;padding-bottom:26px}
.timeline-node{
  flex:0 0 82px;
  width:82px;
  padding-top:20px;
  position:relative;
  text-align:left;
}
.timeline-node::after{
  content:"";
  position:absolute;
  left:76px;
  top:30px;
  width:10px;
  height:10px;
  border-radius:50%;
  background:var(--primary);
  box-shadow:0 0 0 4px rgba(25,211,197,.14),0 0 14px rgba(25,211,197,.6);
}
.tl-year{display:block;font-size:12px;font-weight:700;letter-spacing:.12em;color:var(--text-3)}
.tl-month{display:block;font-size:20px;font-weight:800;color:var(--text);font-variant-numeric:tabular-nums;line-height:1.3}
.tl-card{
  flex:1;
  min-width:0;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius-m);
  padding:24px 26px;
  box-shadow:var(--shadow);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
  position:relative;
  overflow:hidden;
}
.tl-card::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:1px;
  background:linear-gradient(90deg,rgba(125,249,255,.5),transparent 70%);
}
.tl-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-hover)}
.tl-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:12px}
.tl-meta time{font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums}
.tl-card h3{font-size:1.16rem;margin-bottom:10px}
.tl-card p{color:var(--text-2);font-size:15px;margin-bottom:14px}

/* ===== 阅读步骤 ===== */
.steps{display:grid;gap:0;border-top:1px solid var(--line)}
.step{
  display:grid;
  grid-template-columns:84px 1fr auto;
  align-items:center;
  gap:26px;
  padding:26px 8px;
  border-bottom:1px solid var(--line);
  transition:background-color .22s ease;
}
.step:hover{background:rgba(25,211,197,.04)}
.step-num{
  font-size:26px;
  font-weight:800;
  color:rgba(25,211,197,.55);
  font-variant-numeric:tabular-nums;
  line-height:1;
}
.step-body h3{font-size:1.05rem;margin-bottom:4px}
.step-body p{margin:0;color:var(--text-2);font-size:14.5px}
.step-ico{color:var(--text-3);font-size:18px}

/* ===== 订阅区 ===== */
.subscribe-wrap{
  position:relative;
  border-radius:var(--radius-l);
  border:1px solid rgba(125,249,255,.18);
  background:linear-gradient(135deg,rgba(11,36,49,.86),rgba(8,30,43,.72));
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  box-shadow:var(--shadow-hover);
  padding:44px;
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:48px;
  align-items:start;
}
.subscribe-wrap h2{font-size:clamp(1.5rem,2.2vw,2rem);margin-bottom:14px}
.subscribe-wrap .lead{font-size:15.5px;margin-bottom:20px}
.sub-points{list-style:none;padding:0;margin:0;display:grid;gap:10px}
.sub-points li{position:relative;padding-left:24px;font-size:14.5px;color:var(--text-2)}
.sub-points li::before{
  content:"";
  position:absolute;
  left:4px;
  top:9px;
  width:7px;height:7px;
  border-radius:2px;
  background:var(--primary);
  box-shadow:0 0 10px rgba(25,211,197,.7);
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{display:flex;flex-direction:column;gap:8px}
.field.full{grid-column:1/-1}
.field label{font-size:13.5px;color:var(--text-2);font-weight:600}
.field label .req{color:var(--accent);margin-left:3px}
.field input,.field select,.field textarea{
  width:100%;
  height:48px;
  padding:0 14px;
  border-radius:var(--radius-s);
  background:#0A2230;
  border:1px solid #1E3C4A;
  color:var(--text);
  font-size:15px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{height:auto;min-height:120px;padding:12px 14px;resize:vertical;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3)}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;
  border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(25,211,197,.16);
}
.field select{appearance:none;-webkit-appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--text-3) 50%),linear-gradient(135deg,var(--text-3) 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 14px) 21px;background-size:6px 6px,6px 6px;background-repeat:no-repeat}
.form-note{font-size:12.5px;color:var(--text-3);margin:14px 0 0;line-height:1.7}
.form-msg{display:none;margin-top:14px;padding:12px 16px;border-radius:10px;font-size:14px}
.form-msg.ok{display:block;color:var(--primary);background:rgba(25,211,197,.1);border:1px solid rgba(25,211,197,.35)}
.form-msg.err{display:block;color:var(--accent);background:rgba(255,122,89,.1);border:1px solid rgba(255,122,89,.4)}

/* ===== FAQ ===== */
.faq-grid{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:start}
.faq-side{position:sticky;top:96px}
.faq-side .lead{margin-bottom:20px;font-size:15.5px}
.acc{border-top:1px solid var(--line)}
.acc-item{border-bottom:1px solid var(--line)}
.acc-trigger{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:20px 4px;
  background:transparent;
  border:0;
  color:var(--text);
  font-size:16.5px;
  font-weight:600;
  text-align:left;
  cursor:pointer;
  transition:color .2s ease;
}
.acc-trigger:hover{color:var(--primary)}
.acc-trigger .ico{
  flex:0 0 24px;
  width:24px;height:24px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:50%;
  border:1px solid var(--line-strong);
  color:var(--primary);
  font-size:11px;
  transition:transform .22s ease,background-color .22s ease;
}
.acc-trigger[aria-expanded="true"] .ico{transform:rotate(180deg);background:var(--primary-soft)}
.acc-panel{
  max-height:0;
  overflow:hidden;
  transition:max-height .24s ease;
}
.acc-panel .inner{padding:0 4px 22px;color:var(--text-2);font-size:15px;line-height:1.9}

/* ===== CTA 带 ===== */
.cta-band{
  border-radius:var(--radius-l);
  border:1px solid rgba(125,249,255,.18);
  background:
    radial-gradient(620px 260px at 88% 20%,rgba(25,211,197,.16),transparent 65%),
    linear-gradient(135deg,rgba(11,36,49,.92),rgba(8,30,43,.78));
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  padding:48px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:30px;
  box-shadow:var(--shadow-hover);
}
.cta-band h2{font-size:clamp(1.5rem,2.3vw,2.1rem);margin-bottom:10px}
.cta-band p{margin:0;color:var(--text-2);font-size:15px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}
.micro-note{margin-top:26px;font-size:12.5px;color:var(--text-3);text-align:center}

/* ===== 页脚 ===== */
.site-footer{
  background:#041017;
  border-top:1px solid var(--line);
  padding:64px 0 28px;
  margin-top:20px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:44px;
}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{color:var(--text-3);font-size:13.5px;line-height:1.85;margin:0;max-width:340px}
.footer-col h4{font-size:14px;font-weight:700;color:var(--text);margin-bottom:16px}
.footer-col a{
  display:block;
  padding:8px 0;
  font-size:13.5px;
  color:var(--text-3);
  transition:color .2s ease,transform .2s ease;
}
.footer-col a:hover{color:var(--primary);transform:translateX(3px)}
.footer-bottom{
  margin-top:48px;
  padding-top:22px;
  border-top:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  font-size:13px;
  color:var(--text-3);
}
.to-top{
  width:42px;height:42px;
  border-radius:50%;
  border:1px solid var(--line-strong);
  background:rgba(255,255,255,.03);
  color:var(--primary);
  cursor:pointer;
  transition:all .2s ease;
}
.to-top:hover{background:var(--primary-soft);transform:translateY(-3px);box-shadow:0 10px 24px rgba(25,211,197,.22)}

/* ===== 响应式 ===== */
@media (max-width:1279px){
  .nav-search{width:200px}
  .nav-search:focus-within{width:230px}
}
@media (max-width:1023px){
  .container{padding:0 24px}
  .section{padding:64px 0}
  .nav-main,.nav-search,.nav-login{display:none}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
  .header-inner{gap:16px}
  .hero-copy{flex:1 1 100%;max-width:100%}
  .hero-visual{flex:1 1 100%}
  .hero-row{gap:36px}
  .hero-cate{padding:44px 0 56px}
  .timeline::before{left:74px}
  .timeline-node{flex:0 0 74px;width:74px}
  .timeline-node::after{left:68px}
  .subscribe-wrap{grid-template-columns:1fr;gap:32px;padding:34px}
  .faq-grid{grid-template-columns:1fr;gap:34px}
  .faq-side{position:static}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
  .cta-band{padding:34px}
}
@media (max-width:639px){
  .container{padding:0 16px}
  body{font-size:15.5px}
  .section{padding:52px 0}
  .header-inner{height:64px}
  .brand-text{font-size:16px}
  .brand-mark{width:28px;height:28px}
  .btn{height:46px;padding:0 20px;font-size:14.5px}
  .hero-cate h1{font-size:2rem}
  .hero-actions .btn{width:100%}
  .timeline::before{left:5px;top:10px;bottom:10px}
  .timeline-item{flex-direction:column;gap:12px;padding-left:26px;padding-bottom:20px}
  .timeline-node{flex:none;width:auto;padding-top:0;display:flex;align-items:baseline;gap:8px}
  .timeline-node::after{left:-25px;top:17px;width:8px;height:8px}
  .tl-month{font-size:17px}
  .tl-card{padding:20px}
  .step{grid-template-columns:52px 1fr;gap:14px;padding:20px 4px}
  .step-ico{display:none}
  .step-num{font-size:22px}
  .form-grid{grid-template-columns:1fr}
  .subscribe-wrap{padding:24px;border-radius:22px}
  .cta-band{padding:26px;border-radius:22px}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:8px}
  .footer-col a{padding:11px 0}
  .footer-bottom{flex-direction:column-reverse;align-items:flex-start;gap:14px}
  .date-badge{left:14px;bottom:14px;padding:12px 14px;gap:10px}
  .date-badge .db-num{font-size:24px}
  .acc-trigger{font-size:15.5px;padding:18px 2px}
}

/* roulang page: category4 */
:root{
  --bg:#05141D;
  --bg-2:#081E2B;
  --panel:#0B2431;
  --panel-2:#0E2C3A;
  --brand:#19D3C5;
  --brand-deep:#0E9A92;
  --accent:#FF7A59;
  --text:#E9F7FA;
  --muted:#9BB6C3;
  --weak:#6F8A97;
  --line:rgba(125,249,255,.14);
  --glass-line:rgba(125,249,255,.18);
  --r-sm:10px;
  --r-md:18px;
  --r-lg:26px;
  --shadow:0 10px 30px rgba(0,0,0,.28);
  --shadow-hover:0 18px 44px rgba(0,0,0,.36);
  --glow:0 0 0 1px rgba(25,211,197,.35),0 10px 30px rgba(25,211,197,.22);
  --container:1240px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;opacity:.045;
  background-image:radial-gradient(circle at 20% 10%,rgba(25,211,197,.5),transparent 45%),radial-gradient(circle at 80% 70%,rgba(255,122,89,.35),transparent 50%);
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{list-style:none;margin:0;padding:0}
h1,h2,h3,h4,p,figure{margin:0}
[hidden]{display:none !important}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px}
::selection{background:rgba(25,211,197,.28);color:#fff}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px;position:relative;z-index:1}
.show-for-sr,.sr-only{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 24px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;letter-spacing:.02em;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease);
  border:1px solid transparent;white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-deep) 100%);
  color:#032024;box-shadow:var(--glow);
}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.07);box-shadow:0 0 0 1px rgba(25,211,197,.45),0 14px 34px rgba(25,211,197,.3)}
.btn-primary:active{transform:translateY(0);box-shadow:inset 0 2px 8px rgba(0,0,0,.35)}
.btn-ghost{background:transparent;border-color:rgba(155,182,195,.42);color:var(--text)}
.btn-ghost:hover{border-color:var(--brand);color:#fff;transform:translateY(-2px);box-shadow:0 10px 26px rgba(0,0,0,.3)}
.btn-ghost:active{transform:translateY(0)}
.btn-text{display:inline-flex;align-items:center;gap:7px;color:var(--brand);font-size:14.5px;font-weight:600;padding:4px 0}
.btn-text i{transition:transform .22s var(--ease)}
.btn-text:hover i{transform:translateX(4px)}
.btn-block{width:100%}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px;border-radius:999px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(5,20,29,.86);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:20px;height:72px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{width:32px;height:32px;flex-shrink:0}
.brand-text{font-weight:800;font-size:17px;letter-spacing:.01em;color:#fff}
.nav-main{display:flex;align-items:center;gap:4px;margin:0 auto}
.nav-link{
  position:relative;padding:9px 13px;border-radius:8px;
  font-size:14.5px;color:var(--muted);transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-link:hover{color:var(--text);background:rgba(25,211,197,.08)}
.nav-link.is-active{color:#fff}
.nav-link.is-active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:1px;height:2px;border-radius:2px;
  background:var(--brand);box-shadow:0 0 12px rgba(25,211,197,.85);
}
.header-tools{display:flex;align-items:center;gap:12px;flex-shrink:0}
.search-box{
  display:flex;align-items:center;gap:8px;width:240px;height:40px;padding:0 14px;
  background:#0A2230;border:1px solid #1E3C4A;border-radius:999px;
  transition:width .25s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.search-box:focus-within{width:280px;border-color:var(--brand);box-shadow:0 0 0 3px rgba(25,211,197,.14)}
.search-box i{color:var(--weak);font-size:13px}
.search-box input{flex:1;min-width:0;background:none;border:0;outline:none;color:var(--text);font-size:13.5px}
.search-box input::placeholder{color:var(--weak)}
.login-link{font-size:14px;color:var(--muted);padding:6px 4px;transition:color .2s var(--ease)}
.login-link:hover{color:var(--brand)}
.nav-toggle{display:none;width:42px;height:42px;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:12px;color:var(--text)}
.nav-toggle:hover{border-color:var(--brand);color:var(--brand)}
.mobile-menu{position:fixed;inset:72px 0 0 0;z-index:79;background:rgba(4,16,23,.96);backdrop-filter:blur(10px);padding:22px 0;overflow-y:auto}
.mobile-menu .container{display:flex;flex-direction:column;gap:6px}
.mobile-menu a.m-link{padding:14px 12px;border-left:3px solid transparent;font-size:16px;color:var(--text);border-radius:0 10px 10px 0}
.mobile-menu a.m-link.is-active{border-left-color:var(--brand);background:rgba(25,211,197,.08);color:#fff}
.mobile-menu a.m-link:hover{background:rgba(25,211,197,.06)}
.mobile-search{display:flex;align-items:center;gap:10px;height:46px;padding:0 14px;margin:14px 0;background:#0A2230;border:1px solid #1E3C4A;border-radius:12px}
.mobile-search input{flex:1;background:none;border:0;outline:none;color:var(--text);font-size:15px}

/* ---------- hero ---------- */
.hero-faq{
  position:relative;padding:70px 0 62px;
  background:
    linear-gradient(180deg,rgba(5,20,29,.9) 0%,rgba(5,20,29,.97) 100%),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  border-bottom:1px solid var(--line);
}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.18fr) minmax(0,.82fr);gap:48px;align-items:start}
.eyebrow{
  font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--brand);
  font-weight:700;margin-bottom:14px;display:inline-flex;align-items:center;gap:8px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--brand);opacity:.7}
.hero-faq h1{
  font-size:clamp(2.1rem,3.9vw,3.5rem);line-height:1.22;font-weight:800;letter-spacing:-.01em;
  margin-bottom:20px;color:#fff;
}
.hero-lead{font-size:16.5px;color:var(--muted);max-width:640px;margin-bottom:28px}
.hero-search{
  display:flex;align-items:center;gap:10px;height:54px;max-width:560px;
  padding:0 8px 0 18px;background:#0A2230;border:1px solid #1E3C4A;border-radius:14px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.hero-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 4px rgba(25,211,197,.12)}
.hero-search i{color:var(--weak);font-size:15px}
.hero-search input{flex:1;min-width:0;background:none;border:0;outline:none;color:var(--text);font-size:15px}
.hero-search input::placeholder{color:var(--weak)}
.hero-search-btn{
  height:38px;padding:0 20px;border-radius:10px;font-size:14px;font-weight:600;
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));color:#032024;
  box-shadow:0 6px 18px rgba(25,211,197,.22);transition:filter .2s var(--ease),transform .2s var(--ease);
}
.hero-search-btn:hover{filter:brightness(1.08);transform:translateY(-1px)}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.chip{
  display:inline-flex;align-items:center;gap:6px;height:34px;padding:0 16px;border-radius:999px;
  font-size:13.5px;color:var(--muted);background:rgba(14,44,58,.7);border:1px solid var(--line);
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease),transform .2s var(--ease);
}
.chip:hover{color:#fff;border-color:rgba(25,211,197,.5);transform:translateY(-1px)}
.chip.is-on{background:rgba(25,211,197,.14);border-color:rgba(25,211,197,.55);color:#DFFDFA}
.hero-side{display:flex;flex-direction:column;gap:18px}
.side-card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px;box-shadow:var(--shadow);position:relative;overflow:hidden;
}
.side-card::before{content:"";position:absolute;inset:0 0 auto 0;height:1px;background:linear-gradient(90deg,transparent,rgba(125,249,255,.5),transparent)}
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.04em;
  background:rgba(255,122,89,.14);color:var(--accent);border:1px solid rgba(255,122,89,.35);
}
.side-card h2{font-size:20px;font-weight:700;margin:16px 0 10px;color:#fff;line-height:1.5}
.side-card p{font-size:14.5px;color:var(--muted);margin-bottom:20px}
.side-card .btn + .btn{margin-top:10px}
.side-note{font-size:12.5px;color:var(--weak);margin-top:16px;line-height:1.7}
.side-stat{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:18px}
.side-stat div{background:var(--panel-2);border:1px solid var(--line);border-radius:12px;padding:12px 10px;text-align:center}
.side-stat strong{display:block;font-size:19px;color:var(--brand);font-variant-numeric:tabular-nums;line-height:1.4}
.side-stat span{font-size:12px;color:var(--weak)}

/* ---------- sections ---------- */
.section{padding:88px 0;position:relative}
.section-alt{background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:760px;margin-bottom:44px}
.section-head h2{font-size:clamp(1.6rem,2.5vw,2.25rem);line-height:1.35;font-weight:800;color:#fff;margin-bottom:14px}
.section-sub{font-size:15.5px;color:var(--muted)}

/* ---------- faq layout ---------- */
.faq-layout{display:grid;grid-template-columns:262px minmax(0,1fr);gap:32px;align-items:start}
.faq-groups{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-md);
  padding:14px;position:sticky;top:96px;box-shadow:var(--shadow);
}
.group-btn{
  display:flex;width:100%;align-items:center;justify-content:space-between;gap:8px;
  padding:12px 14px;border-radius:10px;font-size:14.5px;color:var(--muted);text-align:left;
  border-left:3px solid transparent;transition:color .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease);
}
.group-btn span.count{font-size:12px;color:var(--weak);font-variant-numeric:tabular-nums}
.group-btn:hover{color:#fff;background:rgba(25,211,197,.07)}
.group-btn.is-active{color:#fff;background:rgba(25,211,197,.1);border-left-color:var(--brand);border-radius:0 10px 10px 0}
.group-btn.is-active span.count{color:var(--brand)}
.faq-side-help{margin-top:14px;padding:16px;border-radius:12px;background:var(--panel-2);border:1px solid var(--line)}
.faq-side-help h3{font-size:14.5px;font-weight:700;color:#fff;margin-bottom:6px}
.faq-side-help p{font-size:12.5px;color:var(--muted);margin-bottom:12px;line-height:1.7}
.faq-side-help .btn-text{font-size:13.5px}

.faq-panel{background:var(--panel);border:1px solid var(--line);border-radius:var(--r-md);padding:8px 26px;box-shadow:var(--shadow)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-q{
  display:flex;width:100%;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 0;font-size:16.5px;font-weight:600;color:var(--text);text-align:left;line-height:1.65;
  transition:color .2s var(--ease);
}
.faq-q:hover{color:var(--brand)}
.faq-q[aria-expanded="true"]{color:#fff}
.faq-ico{position:relative;width:18px;height:18px;flex-shrink:0}
.faq-ico::before,.faq-ico::after{
  content:"";position:absolute;left:0;top:8px;width:18px;height:2px;border-radius:2px;background:var(--brand);
  transition:transform .22s var(--ease),opacity .22s var(--ease);
}
.faq-ico::after{transform:rotate(90deg)}
.faq-q[aria-expanded="true"] .faq-ico::after{transform:rotate(0);opacity:0}
.faq-a{padding:0 0 22px;font-size:14.8px;color:var(--muted);line-height:1.9;max-width:72ch}
.faq-a p{margin-bottom:10px}
.faq-a p:last-child{margin-bottom:0}
.faq-a strong{color:#D8F4F7;font-weight:600}
.faq-empty{
  padding:52px 24px;text-align:center;color:var(--muted);font-size:14.5px;
  border:1px dashed var(--line);border-radius:var(--r-md);
}
.faq-empty i{display:block;font-size:26px;color:var(--weak);margin-bottom:12px}
.faq-empty a{color:var(--brand)}

/* ---------- flow ---------- */
.flow-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:56px;align-items:center}
.flow-steps{display:flex;flex-direction:column;gap:0;margin-top:30px}
.flow-step{display:grid;grid-template-columns:52px minmax(0,1fr);gap:18px;padding:22px 0;border-bottom:1px solid var(--line);position:relative}
.flow-step:last-child{border-bottom:0}
.step-no{
  width:52px;height:52px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  background:rgba(25,211,197,.1);border:1px solid rgba(25,211,197,.3);color:var(--brand);
  font-weight:800;font-size:16px;font-variant-numeric:tabular-nums;
}
.flow-step h3{font-size:17px;font-weight:700;color:#fff;margin-bottom:6px}
.flow-step p{font-size:14.5px;color:var(--muted)}
.flow-media{position:relative;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow)}
.flow-media img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .5s var(--ease)}
.flow-media:hover img{transform:scale(1.03)}
.flow-media .media-tag{
  position:absolute;left:18px;bottom:18px;padding:8px 14px;border-radius:999px;font-size:12.5px;
  background:rgba(5,20,29,.78);border:1px solid var(--glass-line);color:#DFFDFA;backdrop-filter:blur(8px);
}

/* ---------- form ---------- */
.form-wrap{display:grid;grid-template-columns:minmax(0,.72fr) minmax(0,1.28fr);gap:52px;align-items:start}
.form-intro h2{font-size:clamp(1.55rem,2.4vw,2.1rem);line-height:1.4;font-weight:800;color:#fff;margin-bottom:16px}
.form-intro p{font-size:15px;color:var(--muted);margin-bottom:22px}
.form-points{display:flex;flex-direction:column;gap:14px}
.form-points li{display:flex;gap:12px;font-size:14.5px;color:var(--muted);align-items:flex-start}
.form-points i{color:var(--brand);font-size:14px;margin-top:6px}
.ask-form{background:var(--panel);border:1px solid var(--line);border-radius:var(--r-lg);padding:32px;box-shadow:var(--shadow)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.field{display:flex;flex-direction:column;gap:8px}
.field.full{grid-column:1/-1}
.field label{font-size:13.5px;font-weight:600;color:#CFE7EC;letter-spacing:.01em}
.req{color:var(--accent);margin-left:3px}
.field input,.field select,.field textarea{
  width:100%;min-height:48px;padding:12px 14px;border-radius:var(--r-sm);
  background:#0A2230;border:1px solid #1E3C4A;color:var(--text);font-size:14.5px;font-family:inherit;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
}
.field textarea{min-height:132px;resize:vertical;line-height:1.8}
.field input::placeholder,.field textarea::placeholder{color:var(--weak)}
.field input:hover,.field select:hover,.field textarea:hover{border-color:#2B5265}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(25,211,197,.16);background:#0B2636;
}
.field.has-error input,.field.has-error select,.field.has-error textarea{border-color:var(--accent);box-shadow:0 0 0 3px rgba(255,122,89,.14)}
.field .err{font-size:12.5px;color:var(--accent);display:none}
.field.has-error .err{display:block}
.form-actions{grid-column:1/-1;display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-top:6px}
.form-note{font-size:12.5px;color:var(--weak);line-height:1.7}
.form-feedback{
  grid-column:1/-1;margin-top:4px;font-size:14px;padding:12px 16px;border-radius:10px;display:none;
}
.form-feedback.ok{display:block;background:rgba(25,211,197,.1);border:1px solid rgba(25,211,197,.4);color:#B9FBF4}
.form-feedback.bad{display:block;background:rgba(255,122,89,.1);border:1px solid rgba(255,122,89,.42);color:#FFC4B3}

/* ---------- cta ---------- */
.cta-glass{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  background:linear-gradient(135deg,rgba(25,211,197,.14),rgba(11,36,49,.86) 46%,rgba(255,122,89,.12));
  border:1px solid var(--glass-line);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  padding:46px;box-shadow:var(--shadow);
  display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,.7fr);gap:36px;align-items:center;
}
.cta-glass::after{
  content:"";position:absolute;right:-80px;top:-80px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(25,211,197,.28),transparent 68%);pointer-events:none;
}
.cta-glass h2{font-size:clamp(1.5rem,2.3vw,2rem);line-height:1.4;font-weight:800;color:#fff;margin-bottom:12px}
.cta-glass p{font-size:14.5px;color:#BBD3DB;position:relative;z-index:1}
.cta-actions{display:flex;flex-direction:column;gap:14px;position:relative;z-index:1}
.cta-actions .btn{width:100%}
.cta-micro{font-size:12.5px;color:var(--weak);margin-top:18px;grid-column:1/-1;position:relative;z-index:1}

/* ---------- footer ---------- */
.site-footer{background:#041017;border-top:1px solid var(--line);padding:66px 0 26px;position:relative;z-index:1}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:42px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:13.5px;color:var(--muted);line-height:1.85;max-width:340px}
.footer-col h4{font-size:14px;font-weight:600;color:#D6ECF0;margin-bottom:16px;letter-spacing:.02em}
.footer-col a{display:block;font-size:13.5px;color:var(--muted);padding:7px 0;transition:color .2s var(--ease),transform .2s var(--ease)}
.footer-col a:hover{color:var(--brand);transform:translateX(3px)}
.footer-bottom{
  margin-top:46px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom span{font-size:12.5px;color:var(--weak)}
.to-top{
  width:42px;height:42px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);color:var(--muted);background:rgba(14,44,58,.6);
  transition:color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.to-top:hover{color:var(--brand);border-color:var(--brand);transform:translateY(-3px)}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .container{padding:0 28px}
  .search-box{width:200px}
  .search-box:focus-within{width:240px}
}
@media (max-width:1023px){
  .container{padding:0 24px}
  .nav-main{display:none}
  .header-tools .search-box,.header-tools .login-link{display:none}
  .nav-toggle{display:inline-flex}
  .section{padding:64px 0}
  .hero-faq{padding:52px 0 48px}
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .faq-layout{grid-template-columns:1fr;gap:24px}
  .faq-groups{position:static;display:flex;gap:8px;overflow-x:auto;padding:10px;scrollbar-width:thin}
  .group-btn{width:auto;white-space:nowrap;border-left:0;border-bottom:3px solid transparent;border-radius:8px}
  .group-btn.is-active{border-left:0;border-bottom-color:var(--brand);border-radius:8px}
  .faq-side-help{display:none}
  .flow-grid{grid-template-columns:1fr;gap:34px}
  .form-wrap{grid-template-columns:1fr;gap:30px}
  .cta-glass{grid-template-columns:1fr;padding:34px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .hero-faq h1{font-size:1.95rem}
  .hero-lead{font-size:15px}
  .form-grid{grid-template-columns:1fr}
  .faq-panel{padding:4px 18px}
  .faq-q{font-size:15.5px;padding:18px 0}
  .ask-form{padding:24px}
}
@media (max-width:639px){
  .container{padding:0 16px}
  .header-inner{height:64px;gap:12px}
  .mobile-menu{inset:64px 0 0 0}
  .brand-text{font-size:15.5px}
  .brand-mark{width:28px;height:28px}
  .header-tools .btn-sm{padding:0 14px;font-size:13px;min-height:38px}
  .section{padding:48px 0}
  .section-head{margin-bottom:30px}
  .hero-faq{padding:40px 0 40px}
  .hero-search{height:50px;padding-left:14px}
  .hero-search-btn{padding:0 14px;font-size:13px}
  .hero-tags{gap:8px}
  .chip{height:32px;padding:0 13px;font-size:12.5px}
  .side-card{padding:22px}
  .side-stat{grid-template-columns:repeat(3,1fr);gap:8px}
  .side-stat strong{font-size:16px}
  .side-stat span{font-size:11px}
  .cta-glass{padding:26px 22px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:14px}
  .form-actions{flex-direction:column;align-items:stretch}
  .form-actions .btn{width:100%}
  .flow-step{grid-template-columns:42px minmax(0,1fr);gap:14px}
  .step-no{width:42px;height:42px;border-radius:12px;font-size:14px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms!important;transition-duration:.001ms!important}
  html{scroll-behavior:auto}
}