/* roulang page: index */
:root{
  --bg:#060C16;
  --panel:#0B1524;
  --elev:#101E31;
  --primary:#3FE0D0;
  --primary-hover:#62EBDE;
  --primary-active:#2BC4B6;
  --accent:#FFB454;
  --text:#E8F1FA;
  --text-2:#94A7BF;
  --text-3:#5D7A96;
  --border:rgba(255,255,255,.08);
  --border-strong:rgba(63,224,208,.30);
  --card-bg:rgba(16,30,49,.62);
  --r-lg:18px;
  --r-md:14px;
  --r-btn:12px;
  --r-pill:999px;
  --shadow:0 18px 38px -22px rgba(0,0,0,.75);
  --shadow-hover:0 26px 52px -24px rgba(0,0,0,.85);
  --nav-h:64px;
  --mono:ui-monospace,"JetBrains Mono","SFMono-Regular",Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  letter-spacing:.01em;
  color:var(--text);
  background:
    radial-gradient(900px 620px at 6% -6%, rgba(63,224,208,.06), transparent 62%),
    radial-gradient(820px 620px at 96% 6%, rgba(255,180,84,.05), transparent 62%),
    var(--bg);
  background-attachment:fixed;
  overflow-x:hidden;
}
body.no-scroll{overflow:hidden}
img{max-width:100%;height:auto;display:block}
a{color:var(--primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--primary-hover)}
button{font:inherit;color:inherit}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:0}
h1{font-size:clamp(28px,4vw,50px);line-height:1.25}
h2{font-size:clamp(23px,2.6vw,33px);line-height:1.35;font-weight:600}
h3{font-size:clamp(18px,1.7vw,22px);line-height:1.45;font-weight:600}
p{margin:0}
.site-container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:96px 0;position:relative}
.section-tight{padding:72px 0}
.section-panel{background:var(--panel);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.section-grid{
  background-image:
    linear-gradient(rgba(255,255,255,.028) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.028) 1px,transparent 1px);
  background-size:48px 48px;
}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:40px}
.section-head p.lead{color:var(--text-2);font-size:15px;margin-top:12px;max-width:640px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-pill);
  background:rgba(63,224,208,.12);color:var(--primary);
  font-size:13px;letter-spacing:.04em;border:1px solid rgba(63,224,208,.22);
}
.badge-pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--r-pill);
  font-size:12px;letter-spacing:.04em;font-weight:600;
  background:rgba(63,224,208,.12);color:var(--primary);border:1px solid rgba(63,224,208,.24);
}
.badge-amber{
  background:rgba(255,180,84,.14);color:var(--accent);border-color:rgba(255,180,84,.28);
}
.num{font-family:var(--mono);font-variant-numeric:tabular-nums}
.btn-glow,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease,box-shadow .22s ease,background .22s ease,color .22s ease,border-color .22s ease;
  white-space:nowrap;
}
.btn-glow{
  background:linear-gradient(135deg,#3FE0D0,#2BB8E8);
  color:#04121A;
  box-shadow:0 0 0 1px rgba(63,224,208,.35),0 10px 26px -10px rgba(63,224,208,.55);
}
.btn-glow:hover{color:#04121A;filter:brightness(1.06);box-shadow:0 0 0 1px rgba(63,224,208,.45),0 14px 34px -10px rgba(63,224,208,.65)}
.btn-glow:active{transform:translateY(1px);background:var(--primary-active)}
.btn-ghost{
  background:transparent;border-color:rgba(63,224,208,.45);color:var(--primary);
}
.btn-ghost:hover{background:rgba(63,224,208,.08);color:var(--primary-hover);border-color:var(--primary)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.text-link{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--primary);
}
.text-link i{transition:transform .2s ease}
.text-link:hover i{transform:translateX(4px)}
/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1040;
  border-bottom:1px solid transparent;
  transition:background .2s ease,border-color .2s ease,box-shadow .2s ease,backdrop-filter .2s ease;
}
.site-header.is-scrolled{
  background:rgba(6,12,22,.82);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom-color:var(--border);
  box-shadow:0 14px 34px -26px rgba(0,0,0,.95);
}
.header-inner{display:flex;align-items:center;gap:28px;height:var(--nav-h)}
.brand{display:flex;align-items:center;gap:12px;color:var(--text)}
.brand:hover{color:var(--text)}
.brand-mark{
  width:36px;height:36px;border-radius:11px;flex:0 0 auto;
  background:linear-gradient(140deg,rgba(63,224,208,.9),rgba(43,184,232,.85));
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 0 0 1px rgba(63,224,208,.35),0 10px 22px -12px rgba(63,224,208,.7);
}
.brand-mark svg{width:19px;height:19px}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:17px;font-weight:700;letter-spacing:.02em}
.brand-text em{font-style:normal;font-size:11px;color:var(--text-2);letter-spacing:.06em}
.main-nav{display:flex;align-items:center;gap:26px}
.nav-link{
  position:relative;font-size:15px;color:var(--text-2);padding:6px 0;
  transition:color .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;
  background:var(--primary);border-radius:2px;opacity:0;transform:scaleX(.4);
  transition:opacity .2s ease,transform .2s ease;
}
.nav-link:hover{color:var(--text)}
.nav-link:hover::after{opacity:.4;transform:scaleX(1)}
.nav-link.is-active{color:var(--primary)}
.nav-link.is-active::after{opacity:1;transform:scaleX(1)}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.icon-btn{
  width:40px;height:40px;border-radius:11px;border:1px solid var(--border);
  background:rgba(16,30,49,.6);color:var(--text-2);cursor:pointer;
  display:inline-flex;align-items:center;justify-content:center;
  transition:color .2s ease,border-color .2s ease,background .2s ease;
}
.icon-btn:hover{color:var(--primary);border-color:var(--border-strong);background:rgba(63,224,208,.08)}
.hamburger{
  display:none;width:42px;height:42px;border-radius:11px;
  border:1px solid var(--border);background:rgba(16,30,49,.6);cursor:pointer;
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.hamburger span{display:block;width:17px;height:2px;background:var(--text);border-radius:2px;transition:transform .2s ease,opacity .2s ease}
.hamburger[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.hamburger[aria-expanded="true"] span:nth-child(2){opacity:0}
.hamburger[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.search-panel{
  position:absolute;top:calc(var(--nav-h) + 8px);left:50%;transform:translateX(-50%) translateY(-8px);
  width:min(680px,92%);padding:18px;border-radius:var(--r-lg);
  background:rgba(11,21,36,.95);border:1px solid var(--border);
  box-shadow:var(--shadow-hover);
  opacity:0;visibility:hidden;transition:opacity .2s ease,transform .2s ease,visibility .2s;
}
.search-panel.is-open{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}
.search-panel form{display:flex;gap:10px}
.search-panel input{
  flex:1;height:48px;border-radius:var(--r-btn);
  background:rgba(6,12,22,.7);border:1px solid var(--border);color:var(--text);
  padding:0 16px;font-size:15px;
}
.search-panel input::placeholder{color:var(--text-3)}
.search-panel input:focus{outline:none;border-color:var(--border-strong);box-shadow:0 0 0 4px rgba(63,224,208,.12)}
.mobile-drawer{
  position:fixed;top:var(--nav-h);left:0;right:0;z-index:1039;
  background:rgba(6,12,22,.96);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  border-bottom:1px solid var(--border);
  padding:16px 24px 24px;
  transform:translateY(-12px);opacity:0;visibility:hidden;
  transition:opacity .2s ease,transform .2s ease,visibility .2s;
}
.mobile-drawer.is-open{opacity:1;visibility:visible;transform:translateY(0)}
.mobile-drawer a{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 4px;font-size:16px;color:var(--text-2);
  border-bottom:1px solid rgba(255,255,255,.05);
}
.mobile-drawer a.is-active{color:var(--primary)}
.mobile-drawer .drawer-cta{margin-top:18px}
/* ---------- hero ---------- */
.hero{padding-top:calc(var(--nav-h) + 40px);padding-bottom:88px;position:relative;overflow:hidden}
.hero::before{
  content:"";position:absolute;width:520px;height:520px;left:-160px;top:40px;border-radius:50%;
  background:radial-gradient(circle,rgba(63,224,208,.10),transparent 68%);
  pointer-events:none;
}
.hero h1{margin:18px 0 18px;max-width:620px}
.hero-sub{color:var(--text-2);font-size:17px;max-width:540px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin:30px 0 34px}
.trust-strip{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;
  padding-top:24px;border-top:1px solid var(--border);max-width:600px;
}
.trust-strip b{display:block;font-family:var(--mono);font-size:22px;font-weight:600;color:var(--text)}
.trust-strip span{font-size:12px;color:var(--text-3);letter-spacing:.04em}
.hero-visual{position:relative;padding:0 24px}
.hero-visual>img{
  width:100%;height:440px;object-fit:cover;border-radius:var(--r-lg);
  border:1px solid var(--border);
  box-shadow:var(--shadow-hover);
}
.hero-visual::after{
  content:"";position:absolute;inset:0 24px;border-radius:var(--r-lg);
  background:linear-gradient(180deg,rgba(6,12,22,.15),rgba(6,12,22,.55));
  pointer-events:none;
}
.glass-card{
  position:absolute;z-index:2;
  background:var(--card-bg);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border:1px solid var(--border);
  border-radius:var(--r-md);
  box-shadow:var(--shadow);
  padding:16px 18px;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06),var(--shadow);
}
.glass-card .gc-label{font-size:12px;color:var(--text-3);letter-spacing:.06em}
.glass-card .gc-value{font-family:var(--mono);font-size:19px;color:var(--text);margin-top:4px;display:flex;align-items:center;gap:8px}
.dot-live{width:8px;height:8px;border-radius:50%;background:var(--primary);box-shadow:0 0 0 4px rgba(63,224,208,.18)}
.status-card{top:28px;right:4px;width:236px}
.copy-card{bottom:28px;left:4px;width:272px}
.copy-row{display:flex;align-items:center;gap:10px;margin-top:10px}
.copy-row code{
  flex:1;font-family:var(--mono);font-size:12.5px;color:var(--text-2);
  background:rgba(6,12,22,.6);border:1px solid var(--border);border-radius:9px;
  padding:8px 10px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.copy-btn{
  height:34px;padding:0 12px;border-radius:9px;cursor:pointer;
  border:1px solid rgba(63,224,208,.4);background:rgba(63,224,208,.10);
  color:var(--primary);font-size:12.5px;font-weight:600;
  transition:background .2s ease,color .2s ease;
}
.copy-btn:hover{background:rgba(63,224,208,.18);color:var(--primary-hover)}
/* ---------- metrics ---------- */
.metric-card{
  height:100%;padding:24px;border-radius:var(--r-lg);
  background:var(--card-bg);border:1px solid var(--border);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06),var(--shadow);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
  display:flex;flex-direction:column;
}
.metric-card:hover{transform:translateY(-4px);border-color:var(--border-strong);box-shadow:var(--shadow-hover)}
.metric-top{display:flex;align-items:center;justify-content:space-between;gap:10px}
.metric-title{font-size:14px;color:var(--text-2)}
.metric-num{font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:38px;font-weight:600;line-height:1.1;margin:14px 0 8px}
.metric-num small{font-size:15px;color:var(--text-3);margin-left:4px}
.metric-note{font-size:13px;color:var(--text-3);margin-bottom:18px}
.metric-bar{height:4px;border-radius:4px;background:rgba(255,255,255,.07);margin-top:auto;overflow:hidden}
.metric-bar i{display:block;height:100%;border-radius:4px;background:linear-gradient(90deg,#3FE0D0,#2BB8E8);box-shadow:0 0 12px rgba(63,224,208,.75)}
/* ---------- bento ---------- */
.bento-card{
  height:100%;padding:24px;border-radius:var(--r-lg);
  background:var(--card-bg);border:1px solid var(--border);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06),var(--shadow);
  display:flex;flex-direction:column;
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.bento-card:hover{transform:translateY(-4px);border-color:var(--border-strong);box-shadow:var(--shadow-hover)}
.bento-icon{
  width:40px;height:40px;border-radius:11px;display:flex;align-items:center;justify-content:center;
  background:rgba(63,224,208,.10);color:var(--primary);font-size:16px;
  transition:background .22s ease,color .22s ease;
}
.bento-card:hover .bento-icon{background:rgba(63,224,208,.16)}
.bento-card h3{margin:18px 0 10px}
.bento-card p{color:var(--text-2);font-size:14.5px}
.bento-list{margin:16px 0 20px;display:grid;gap:10px}
.bento-list li{display:flex;gap:10px;font-size:14.5px;color:var(--text-2)}
.bento-list i{color:var(--primary);margin-top:6px;font-size:12px}
.bento-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;padding-top:16px;border-top:1px solid var(--border)}
.bento-visual{border-radius:var(--r-md);overflow:hidden;border:1px solid var(--border);margin-top:20px}
.bento-visual img{width:100%;aspect-ratio:16/9;object-fit:cover}
/* ---------- posts ---------- */
.post-card{
  height:100%;border-radius:var(--r-lg);overflow:hidden;
  background:var(--card-bg);border:1px solid var(--border);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06),var(--shadow);
  display:flex;flex-direction:column;
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.post-card:hover{transform:translateY(-4px);border-color:var(--border-strong);box-shadow:var(--shadow-hover)}
.post-card__thumb{display:block;overflow:hidden}
.post-card__thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .4s ease}
.post-card:hover .post-card__thumb img{transform:scale(1.04)}
.post-card__body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.post-card__body h3{margin:12px 0 10px;font-size:17px;line-height:1.5}
.post-card__body h3 a{
  color:var(--text);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card__body h3 a:hover{color:var(--primary)}
.post-card__body p{
  color:var(--text-2);font-size:14px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-meta{
  margin-top:auto;padding-top:16px;border-top:1px solid var(--border);
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  font-size:13px;color:var(--text-3);
}
.post-meta time{font-family:var(--mono)}
.empty-state{
  text-align:center;padding:64px 24px;border-radius:var(--r-lg);
  background:var(--card-bg);border:1px dashed rgba(255,255,255,.14);
}
.empty-state i{font-size:30px;color:var(--primary);opacity:.8}
.empty-state p{color:var(--text-2);margin:16px 0 22px}
/* ---------- compare ---------- */
.compare-panel{
  border-radius:var(--r-lg);border:1px solid var(--border);
  background:var(--card-bg);overflow:hidden;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06),var(--shadow);
}
.compare-table{width:100%;border-collapse:collapse;min-width:520px}
.compare-table th,.compare-table td{padding:14px 18px;text-align:left;font-size:14.5px;border-bottom:1px solid var(--border)}
.compare-table thead th{font-size:13px;color:var(--text-3);letter-spacing:.06em;border-bottom:1px solid rgba(63,224,208,.35)}
.compare-table tbody tr:nth-child(odd){background:rgba(255,255,255,.02)}
.compare-table td.before{color:var(--text-3)}
.compare-table td.after{color:var(--text)}
.compare-table td.after i{color:var(--primary);margin-right:6px;font-size:12px}
.table-scroll{overflow-x:auto}
.bar-compare{padding:24px;border-top:1px solid var(--border);display:grid;gap:22px}
.bar-item .bar-head{display:flex;justify-content:space-between;font-size:13.5px;color:var(--text-2);margin-bottom:10px}
.bar-track{height:12px;border-radius:8px;background:rgba(255,255,255,.06);overflow:hidden}
.bar-track i{display:block;height:100%;border-radius:8px}
.bar-grey i{background:rgba(148,167,191,.35)}
.bar-glow i{background:linear-gradient(90deg,#3FE0D0,#2BB8E8);box-shadow:0 0 16px rgba(63,224,208,.6)}
/* ---------- faq ---------- */
.faq .accordion-item{
  background:var(--card-bg);border:1px solid var(--border);border-radius:var(--r-md);
  margin-bottom:14px;overflow:hidden;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.05);
  transition:border-color .2s ease,box-shadow .22s ease;
}
.faq .accordion-item:hover{border-color:var(--border-strong)}
.faq .accordion-button{
  background:transparent;color:var(--text);font-size:16px;font-weight:600;
  padding:20px 22px;box-shadow:none;gap:14px;align-items:flex-start;
}
.faq .accordion-button:not(.collapsed){color:var(--primary);border-left:2px solid var(--primary)}
.faq .accordion-button:focus{box-shadow:0 0 0 2px rgba(63,224,208,.35);outline:none;z-index:3}
.faq .accordion-button::after{
  content:"";width:14px;height:14px;margin-left:auto;flex:0 0 auto;margin-top:6px;
  background:none;border-right:2px solid var(--text-2);border-bottom:2px solid var(--text-2);
  transform:rotate(45deg);transition:transform .25s ease,border-color .25s ease;
}
.faq .accordion-button:not(.collapsed)::after{transform:rotate(-135deg);border-color:var(--primary)}
.faq-no{font-family:var(--mono);color:var(--text-3);font-size:13px;margin-top:4px}
.faq .accordion-button:not(.collapsed) .faq-no{color:var(--primary)}
.faq .accordion-body{color:var(--text-2);font-size:14.8px;padding:0 22px 22px 58px}
/* ---------- form ---------- */
.form-card{
  padding:28px;border-radius:var(--r-lg);
  background:var(--card-bg);border:1px solid var(--border);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06),var(--shadow);
}
.form-card label{display:block;font-size:13.5px;color:var(--text-2);margin-bottom:8px;letter-spacing:.03em}
.form-card .form-control,.form-card .form-select{
  width:100%;height:48px;border-radius:var(--r-btn);
  background:rgba(6,12,22,.66);border:1px solid var(--border);color:var(--text);
  padding:0 15px;font-size:15px;transition:border-color .2s ease,box-shadow .2s ease;
}
.form-card textarea.form-control{height:auto;min-height:120px;padding:13px 15px;line-height:1.7;resize:vertical}
.form-card .form-control::placeholder{color:var(--text-3)}
.form-card .form-control:focus,.form-card .form-select:focus{
  outline:none;border-color:var(--primary);box-shadow:0 0 0 4px rgba(63,224,208,.12);
  background:rgba(6,12,22,.85);
}
.form-card .form-select{
  appearance:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%2394A7BF' stroke-width='1.6' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 16px center;
}
.form-check{display:flex;gap:10px;align-items:flex-start;font-size:13.5px;color:var(--text-2)}
.form-check input{accent-color:#3FE0D0;width:16px;height:16px;margin-top:5px;flex:0 0 auto}
.field-msg{display:none;font-size:12.5px;color:var(--accent);margin-top:6px}
.field-error .form-control,.field-error .form-select{border-color:var(--accent);box-shadow:0 0 0 4px rgba(255,180,84,.10)}
.field-error .field-msg{display:block}
.form-success{
  display:none;margin-top:18px;padding:14px 16px;border-radius:var(--r-btn);
  border:1px solid rgba(63,224,208,.4);background:rgba(63,224,208,.08);
  color:var(--primary);font-size:14px;
}
.form-success.is-visible{display:block}
.contact-points{display:grid;gap:14px;margin-top:26px}
.contact-points li{display:flex;gap:12px;color:var(--text-2);font-size:14.8px}
.contact-points i{color:var(--primary);margin-top:6px;font-size:13px}
/* ---------- footer ---------- */
.site-footer{background:#040A12;border-top:1px solid var(--border);padding:72px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:48px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-desc{color:var(--text-2);font-size:14px;max-width:340px}
.footer-title{font-size:14px;color:var(--text);letter-spacing:.08em;margin-bottom:18px;font-weight:600}
.footer-links{display:grid;gap:11px}
.footer-links a{color:var(--text-2);font-size:14px}
.footer-links a:hover{color:var(--primary)}
.footer-contact{display:grid;gap:11px;color:var(--text-2);font-size:14px}
.footer-contact span{font-family:var(--mono);color:var(--text-3);font-size:13px}
.footer-bottom{
  border-top:1px solid var(--border);padding:20px 0;
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  color:var(--text-3);font-size:13px;
}
.footer-bottom .mono{font-family:var(--mono);letter-spacing:.02em}
.to-top{
  position:fixed;right:22px;bottom:26px;z-index:1030;width:46px;height:46px;border-radius:50%;
  display:none;align-items:center;justify-content:center;cursor:pointer;
  background:rgba(16,30,49,.85);border:1px solid var(--border-strong);color:var(--primary);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  box-shadow:var(--shadow);
}
.to-top.is-visible{display:flex}
.to-top:hover{background:rgba(63,224,208,.14)}
/* ---------- responsive ---------- */
@media (max-width:1199px){
  h1{font-size:clamp(26px,3.4vw,42px)}
  .section{padding:72px 0}
  .hero-visual>img{height:400px}
}
@media (max-width:991px){
  .main-nav{display:none}
  .hamburger{display:flex}
  .header-actions .btn-glow{display:none}
  .hero{padding-top:calc(var(--nav-h) + 32px);padding-bottom:64px}
  .hero-visual{padding:0;margin-top:36px}
  .hero-visual>img{height:300px}
  .hero-visual::after{inset:0}
  .status-card{top:16px;right:14px;width:214px}
  .copy-card{bottom:16px;left:14px;width:240px}
  .trust-strip{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .faq .accordion-button{font-size:15px}
}
@media (max-width:767px){
  .section{padding:48px 0}
  .section-head{margin-bottom:28px}
  .site-container{padding:0 16px}
  .header-inner{gap:14px}
  .brand-text em{display:none}
  .metric-num{font-size:32px}
  .hero-visual>img{height:260px}
  .status-card{position:static;width:100%;margin-top:14px}
  .copy-card{position:static;width:100%;margin-top:12px}
  .hero-visual::after{display:none}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .faq .accordion-body{padding-left:22px}
}
@media (max-width:520px){
  h1{font-size:26px}
  .trust-strip{grid-template-columns:1fr 1fr}
  .btn-glow,.btn-ghost{width:100%}
  .hero-cta{gap:10px}
  .search-panel form{flex-direction:column}
  .search-panel .btn-glow{width:100%}
}

/* roulang page: article */
:root{
  --bg:#060C16;
  --panel:#0B1524;
  --panel-2:#101E31;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.14);
  --text:#E8F1FA;
  --text-2:#94A7BF;
  --text-3:#5D7A96;
  --primary:#3FE0D0;
  --primary-hover:#62EBDE;
  --primary-active:#2BC4B6;
  --accent:#FFB454;
  --radius-lg:18px;
  --radius-md:14px;
  --radius-btn:12px;
  --shadow-card:0 18px 38px -22px rgba(0,0,0,.75);
  --shadow-card-hover:0 26px 52px -24px rgba(0,0,0,.85);
  --nav-h:64px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:
    radial-gradient(620px 420px at 6% -4%, rgba(63,224,208,.06), transparent 70%),
    radial-gradient(760px 520px at 102% 96%, rgba(255,180,84,.05), transparent 72%);
}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none}
a:hover{color:var(--primary-hover)}
button{font-family:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding-left:1.2em}
::selection{background:rgba(63,224,208,.3);color:#fff}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px}
.mono{font-family:ui-monospace,"JetBrains Mono",monospace;font-variant-numeric:tabular-nums;letter-spacing:.02em}

.site-container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media(max-width:575.98px){.site-container{padding:0 16px}}

/* ---------- 顶部阅读进度 ---------- */
.read-progress{
  position:fixed;top:0;left:0;height:3px;width:0;z-index:1060;
  background:linear-gradient(90deg,#3FE0D0,#2BB8E8);
  box-shadow:0 0 12px rgba(63,224,208,.85);
  transition:width .1s linear;
}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1050;
  height:var(--nav-h);
  display:flex;align-items:center;
  border-bottom:1px solid transparent;
  transition:background .2s ease,border-color .2s ease,backdrop-filter .2s ease;
}
.site-header.is-scrolled{
  background:rgba(6,12,22,.82);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
}
.header-inner{display:flex;align-items:center;gap:28px;width:100%}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;text-decoration:none;color:var(--text)}
.brand-mark{
  width:34px;height:34px;border-radius:10px;flex-shrink:0;
  display:grid;place-items:center;
  background:linear-gradient(135deg,#3FE0D0,#2BB8E8);
  box-shadow:0 0 0 1px rgba(63,224,208,.3),0 8px 18px -10px rgba(63,224,208,.55);
}
.brand-mark svg{width:20px;height:20px}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:17px;font-weight:700;letter-spacing:.04em}
.brand-text em{font-size:11px;font-style:normal;color:var(--text-3);letter-spacing:.08em}

.main-nav{display:flex;align-items:center;gap:6px;margin-right:auto}
.nav-link{
  position:relative;
  padding:8px 14px;border-radius:10px;
  color:var(--text-2);font-size:14.5px;font-weight:500;text-decoration:none;
  transition:color .2s,background .2s;
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.04)}
.nav-link.is-active{color:var(--primary)}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:1px;height:2px;border-radius:2px;
  background:var(--primary);box-shadow:0 0 8px rgba(63,224,208,.7);
}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:auto}
.icon-btn{
  width:40px;height:40px;border-radius:12px;
  display:grid;place-items:center;
  background:transparent;border:1px solid var(--line);
  color:var(--text-2);cursor:pointer;
  transition:color .2s,border-color .2s,background .2s;
}
.icon-btn:hover{color:var(--primary);border-color:rgba(63,224,208,.4);background:rgba(63,224,208,.07)}
.menu-toggle{display:none}

/* ---------- 按钮 ---------- */
.btn-glow{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border:0;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;letter-spacing:.02em;
  color:#04121A;cursor:pointer;text-decoration:none;
  background:linear-gradient(135deg,#3FE0D0,#2BB8E8);
  box-shadow:0 0 0 1px rgba(63,224,208,.35),0 10px 26px -10px rgba(63,224,208,.55);
  transition:transform .18s,box-shadow .18s,filter .18s;
}
.btn-glow:hover{color:#04121A;filter:brightness(1.06);box-shadow:0 0 0 1px rgba(63,224,208,.5),0 14px 34px -10px rgba(63,224,208,.7)}
.btn-glow:active{transform:translateY(1px)}
.btn-glow.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--radius-btn);
  background:transparent;border:1px solid rgba(63,224,208,.45);
  color:var(--primary);font-size:15px;font-weight:600;text-decoration:none;
  transition:background .2s,border-color .2s,color .2s;
}
.btn-ghost:hover{background:rgba(63,224,208,.1);border-color:var(--primary);color:var(--primary-hover)}
.btn-ghost.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--primary);font-size:14px;font-weight:600;
  background:none;border:0;padding:0;cursor:pointer;
}
.btn-text:hover{color:var(--primary-hover);gap:10px}

/* ---------- 徽章 ---------- */
.badge-pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;
  font-size:12px;font-weight:500;letter-spacing:.04em;
  background:rgba(63,224,208,.12);color:var(--primary);
  border:1px solid rgba(63,224,208,.25);
}
.badge-amber{
  background:rgba(255,180,84,.12);color:var(--accent);
  border-color:rgba(255,180,84,.28);
}

/* ---------- 移动抽屉 ---------- */
.mobile-drawer{
  position:fixed;top:var(--nav-h);left:0;right:0;bottom:0;z-index:1045;
  padding:20px 20px 32px;
  background:rgba(6,12,22,.96);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  display:flex;flex-direction:column;gap:6px;
  opacity:0;visibility:hidden;transform:translateY(-10px);
  transition:opacity .22s ease,transform .22s ease,visibility .22s;
}
.mobile-drawer.is-open{opacity:1;visibility:visible;transform:none}
.drawer-link{
  padding:14px 16px;border-radius:14px;
  color:var(--text-2);font-size:16px;font-weight:500;text-decoration:none;
  border:1px solid transparent;transition:.2s;
}
.drawer-link:hover,.drawer-link.is-active{
  color:var(--primary);background:rgba(63,224,208,.08);border-color:rgba(63,224,208,.22);
}
.drawer-foot{margin-top:auto;display:flex;align-items:center;gap:12px;padding-top:20px;border-top:1px solid var(--line)}
.drawer-foot .btn-glow{flex:1}

/* ---------- 文章头部 ---------- */
.article-hero{
  position:relative;
  padding:104px 0 48px;
  border-bottom:1px solid var(--line);
  background:
    linear-gradient(180deg,rgba(6,12,22,.76) 0%,rgba(6,12,22,.92) 62%,#060C16 100%),
    url(/assets/images/backpic/back-1.webp) center/cover no-repeat;
}
.breadcrumb-nav{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--text-3);margin-bottom:20px;
}
.breadcrumb-nav a{color:var(--text-2);text-decoration:none;transition:color .2s}
.breadcrumb-nav a:hover{color:var(--primary)}
.breadcrumb-nav .sep{color:#2A3A50}
.breadcrumb-nav .current{color:var(--text-3);max-width:min(520px,100%);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-title{
  font-size:40px;font-weight:700;line-height:1.28;letter-spacing:.01em;
  max-width:900px;margin:14px 0 20px;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  font-size:13px;color:var(--text-3);
}
.article-meta .divider{width:1px;height:14px;background:var(--line-strong)}
.article-meta i{color:var(--primary);font-size:12px}

/* ---------- 正文 ---------- */
.article-main{padding:56px 0 88px;position:relative;z-index:1}
.article-layout{max-width:780px;margin:0 auto}
.article-content{font-size:17px;line-height:1.9;color:#D6E3F0;word-break:break-word}
.article-content > * + *{margin-top:1.5em}
.article-content h2{
  position:relative;
  font-size:26px;font-weight:600;line-height:1.4;color:var(--text);
  margin:2.2em 0 1em;padding-left:16px;
}
.article-content h2::before{
  content:"";position:absolute;left:0;top:.3em;bottom:.3em;width:4px;border-radius:4px;
  background:var(--primary);box-shadow:0 0 12px rgba(63,224,208,.6);
}
.article-content h3{font-size:20px;font-weight:600;color:var(--text);margin:1.8em 0 .8em}
.article-content h4{font-size:17px;font-weight:600;color:var(--text);margin:1.5em 0 .6em}
.article-content p{margin:0}
.article-content strong{color:var(--text);font-weight:600}
.article-content a{color:var(--primary);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.article-content a:hover{color:var(--primary-hover)}
.article-content ul,.article-content ol{padding-left:1.4em;margin:0}
.article-content li{margin:.45em 0}
.article-content li::marker{color:rgba(63,224,208,.75)}
.article-content blockquote{
  margin:1.6em 0;padding:20px 24px;
  border-left:3px solid var(--accent);border-radius:0 var(--radius-md) var(--radius-md) 0;
  background:rgba(16,30,49,.62);color:var(--text-2);
}
.article-content blockquote p{margin:0}
.article-content img{max-width:100%;height:auto;border-radius:12px;margin:1.6em auto}
.article-content figure{margin:1.8em 0}
.article-content figcaption{font-size:13px;color:var(--text-3);margin-top:10px;text-align:left}
.article-content hr{border:0;height:1px;background:var(--line);margin:2.4em 0}
.article-content table{
  display:block;width:100%;max-width:100%;overflow-x:auto;
  border-collapse:collapse;font-size:15px;margin:1.6em 0;
}
.article-content thead th{
  text-align:left;padding:14px 18px;white-space:nowrap;
  font-size:13px;font-weight:600;letter-spacing:.04em;color:var(--text-2);
  border-bottom:1px solid rgba(63,224,208,.35);
}
.article-content tbody td{padding:14px 18px;border-bottom:1px solid var(--line);color:var(--text-2)}
.article-content tbody tr:nth-child(odd){background:rgba(255,255,255,.02)}
.article-content code{
  font-family:ui-monospace,"JetBrains Mono",monospace;font-size:.9em;
  padding:.15em .45em;border-radius:6px;
  background:rgba(63,224,208,.1);color:var(--primary);
}

.empty-state{
  text-align:center;padding:72px 24px;
  border:1px dashed var(--line-strong);border-radius:var(--radius-lg);
  background:rgba(16,30,49,.42);
}
.empty-state .empty-icon{
  width:56px;height:56px;margin:0 auto 18px;border-radius:16px;
  display:grid;place-items:center;
  background:rgba(63,224,208,.1);color:var(--primary);font-size:22px;
  border:1px solid rgba(63,224,208,.24);
}
.empty-state h2{font-size:20px;font-weight:600;color:var(--text);margin-bottom:8px}
.empty-state p{font-size:14.5px;color:var(--text-3);margin-bottom:24px}

/* ---------- 文末操作 ---------- */
.article-foot{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  margin-top:56px;padding-top:32px;border-top:1px solid var(--line);
}

/* ---------- 相关推荐 ---------- */
.related-section{padding:0 0 96px;position:relative;z-index:1}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:20px;
  margin-bottom:32px;
}
.section-title{font-size:30px;font-weight:600;line-height:1.35;color:var(--text)}
.section-sub{font-size:14px;color:var(--text-3);margin-top:8px}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.post-card{
  display:flex;flex-direction:column;height:100%;
  background:rgba(16,30,49,.62);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border:1px solid var(--line);border-radius:var(--radius-lg);
  overflow:hidden;box-shadow:var(--shadow-card);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-card-hover);border-color:rgba(63,224,208,.3)}
.post-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--panel-2)}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.post-card:hover .post-thumb img{transform:scale(1.04)}
.post-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-title{
  font-size:17px;font-weight:600;line-height:1.5;color:var(--text);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-title a{color:inherit;text-decoration:none}
.post-title a:hover{color:var(--primary)}
.post-excerpt{
  font-size:14px;line-height:1.7;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-meta{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  margin-top:auto;padding-top:12px;border-top:1px solid var(--line);
  font-size:12.5px;color:var(--text-3);
}
.post-meta .arrow{color:var(--primary);transition:transform .2s}
.post-card:hover .post-meta .arrow{transform:translateX(4px)}

/* ---------- 返回顶部 ---------- */
.back-to-top{
  position:fixed;right:24px;bottom:24px;z-index:1055;
  width:46px;height:46px;border-radius:50%;
  display:grid;place-items:center;
  background:rgba(16,30,49,.82);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border:1px solid var(--line);color:var(--primary);
  cursor:pointer;opacity:0;visibility:hidden;
  transition:opacity .25s,visibility .25s,border-color .2s,box-shadow .2s;
}
.back-to-top.is-visible{opacity:1;visibility:visible}
.back-to-top:hover{border-color:rgba(63,224,208,.5);box-shadow:0 0 22px -6px rgba(63,224,208,.7)}

/* ---------- 页脚 ---------- */
.site-footer{
  background:#040A12;border-top:1px solid var(--line);
  padding:64px 0 0;position:relative;z-index:1;
}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;
  padding-bottom:48px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{width:32px;height:32px;border-radius:9px}
.footer-brand .brand-mark svg{width:18px;height:18px}
.footer-brand .brand-text strong{font-size:15px}
.footer-brand .brand-text em{font-size:11px}
.footer-title{font-size:14px;font-weight:600;color:var(--text);letter-spacing:.04em;margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{color:var(--text-2);font-size:14px;text-decoration:none;transition:color .2s,padding-left .2s}
.footer-links a:hover{color:var(--primary);padding-left:4px}
.footer-desc{font-size:13.5px;line-height:1.8;color:var(--text-3);max-width:320px}
.footer-contact{display:flex;flex-direction:column;gap:10px;font-size:14px;color:var(--text-2)}
.footer-contact span{color:var(--text-3);font-size:13.5px}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  padding:20px 0;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}

/* ---------- 响应式 ---------- */
@media(max-width:1199.98px){
  .article-title{font-size:34px}
  .related-grid{grid-template-columns:repeat(3,1fr);gap:20px}
}
@media(max-width:991.98px){
  .main-nav{display:none}
  .menu-toggle{display:grid}
  .brand-text strong{font-size:16px}
  .header-actions .btn-glow{display:none}
  .article-hero{padding:96px 0 40px}
  .article-title{font-size:30px}
  .article-main{padding:48px 0 72px}
  .related-section{padding-bottom:72px}
  .section-title{font-size:26px}
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .footer-desc{max-width:none}
}
@media(max-width:767.98px){
  :root{--nav-h:56px}
  .article-hero{padding:88px 0 32px}
  .article-title{font-size:26px;margin:12px 0 16px}
  .article-content{font-size:16px;line-height:1.85}
  .article-content h2{font-size:22px;margin:1.9em 0 .8em}
  .article-content h3{font-size:18px}
  .article-main{padding:40px 0 64px}
  .breadcrumb-nav .current{max-width:100%}
  .related-grid{grid-template-columns:1fr}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:36px}
  .back-to-top{right:16px;bottom:16px}
}
@media(max-width:575.98px){
  .article-title{font-size:23px}
  .article-meta{gap:10px}
  .btn-glow,.btn-ghost{width:100%}
  .article-foot .btn-ghost{width:auto}
}

/* roulang page: category1 */
:root{
  --bg:#060C16;
  --panel:#0B1524;
  --float:#101E31;
  --card-bg:rgba(16,30,49,.62);
  --primary:#3FE0D0;
  --primary-hover:#62EBDE;
  --primary-active:#2BC4B6;
  --accent:#FFB454;
  --text:#E8F1FA;
  --text-2:#94A7BF;
  --text-3:#5D7A96;
  --border:rgba(255,255,255,.08);
  --border-strong:rgba(63,224,208,.30);
  --radius-lg:18px;
  --radius-md:14px;
  --radius-sm:12px;
  --shadow-card:0 18px 38px -22px rgba(0,0,0,.75);
  --shadow-hover:0 26px 52px -24px rgba(0,0,0,.85);
  --nav-h:64px;
  --font-sans:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-mono:ui-monospace,"JetBrains Mono",monospace;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:
    radial-gradient(680px 420px at 8% -6%,rgba(63,224,208,.055),transparent 62%),
    radial-gradient(620px 400px at 98% 92%,rgba(255,180,84,.05),transparent 60%);
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
button{font-family:inherit;}

.site-container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
  position:relative;
  z-index:1;
}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:0;}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  height:var(--nav-h);
  z-index:1030;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background .2s ease,border-color .2s ease,backdrop-filter .2s ease;
}
.site-header.is-scrolled{
  background:rgba(6,12,22,.82);
  backdrop-filter:blur(14px);
  border-bottom-color:var(--border);
}
.nav-inner{display:flex;align-items:center;height:var(--nav-h);gap:24px;}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.brand-mark{
  width:38px;height:38px;border-radius:11px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#3FE0D0,#2BB8E8);
  box-shadow:0 10px 24px -12px rgba(63,224,208,.7);
}
.brand-mark svg{width:22px;height:22px;}
.brand-text{display:flex;align-items:baseline;gap:7px;}
.brand-text strong{font-size:19px;font-weight:700;}
.brand-text em{font-style:normal;font-size:13px;color:var(--text-2);letter-spacing:.04em;}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:14px;flex:1 1 auto;}
.nav-link{
  position:relative;
  padding:8px 12px;
  font-size:15px;
  color:var(--text-2);
  border-radius:8px;
  transition:color .18s ease;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:0;
  height:2px;
  border-radius:2px;
  background:var(--primary);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .2s ease;
}
.nav-link:hover{color:var(--text);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--primary);}
.nav-link.is-active::after{transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.icon-btn{
  width:40px;height:40px;border-radius:10px;
  display:inline-flex;align-items:center;justify-content:center;
  background:transparent;border:1px solid var(--border);color:var(--text-2);
  transition:color .18s ease,border-color .18s ease,background .18s ease;
}
.icon-btn:hover{color:var(--primary);border-color:var(--border-strong);background:rgba(63,224,208,.08);}
.nav-toggle{display:none;}

/* 移动抽屉 */
.nav-drawer{
  position:fixed;
  top:var(--nav-h);left:0;right:0;
  z-index:1029;
  padding:18px 24px 26px;
  background:rgba(6,12,22,.94);
  backdrop-filter:blur(16px);
  border-bottom:1px solid var(--border);
  transform:translateY(-12px);
  opacity:0;
  visibility:hidden;
  transition:opacity .22s ease,transform .22s ease,visibility .22s;
}
.nav-drawer.is-open{opacity:1;transform:translateY(0);visibility:visible;}
.nav-drawer a{
  display:block;
  padding:13px 4px;
  font-size:16px;
  color:var(--text-2);
  border-bottom:1px solid var(--border);
}
.nav-drawer a.is-active{color:var(--primary);}
.nav-drawer .drawer-foot{display:flex;flex-direction:column;gap:12px;margin-top:18px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;
  border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:filter .2s ease,box-shadow .2s ease,transform .12s ease,background .2s ease,border-color .2s ease,color .2s ease;
}
.btn-primary{
  background:linear-gradient(135deg,#3FE0D0,#2BB8E8);
  color:#04121A;
  box-shadow:0 0 0 1px rgba(63,224,208,.35),0 10px 26px -10px rgba(63,224,208,.55);
}
.btn-primary:hover{filter:brightness(1.06);box-shadow:0 0 0 1px rgba(63,224,208,.45),0 14px 34px -12px rgba(63,224,208,.6);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{
  background:transparent;
  color:var(--primary);
  border-color:rgba(63,224,208,.55);
}
.btn-ghost:hover{background:rgba(63,224,208,.10);border-color:var(--primary);}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn:focus-visible,.icon-btn:focus-visible,.nav-link:focus-visible,.nav-toggle:focus-visible,a:focus-visible,button:focus-visible{
  outline:2px solid var(--primary);
  outline-offset:2px;
}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--primary);
  transition:gap .2s ease,color .2s ease;
}
.link-arrow:hover{gap:10px;color:var(--primary-hover);}

/* ---------- 徽章 / 标签 ---------- */
.badge-pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;
  border-radius:999px;
  font-size:12px;
  letter-spacing:.04em;
  background:rgba(63,224,208,.12);
  color:var(--primary);
  border:1px solid rgba(63,224,208,.22);
}
.badge-warm{
  background:rgba(255,180,84,.12);
  color:var(--accent);
  border-color:rgba(255,180,84,.26);
}
.eyebrow{
  font-size:13px;
  letter-spacing:.08em;
  color:var(--primary);
  margin-bottom:10px;
}

/* ---------- Hero ---------- */
.page-hero{
  padding-top:calc(var(--nav-h) + 44px);
  padding-bottom:56px;
  position:relative;
}
.breadcrumb-line{
  display:flex;align-items:center;gap:8px;
  font-size:13px;color:var(--text-3);
  margin-bottom:18px;
}
.breadcrumb-line a{color:var(--text-2);transition:color .18s ease;}
.breadcrumb-line a:hover{color:var(--primary);}
.breadcrumb-line .current{color:var(--text-3);}
.page-hero h1{
  font-size:46px;
  line-height:1.25;
  font-weight:700;
  max-width:15em;
}
.hero-lead{
  margin-top:20px;
  font-size:17px;
  color:var(--text-2);
  max-width:36em;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-facts{display:flex;flex-wrap:wrap;gap:26px;margin-top:30px;}
.hero-facts li{display:flex;flex-direction:column;gap:2px;}
.hero-facts .num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-size:22px;font-weight:700;color:var(--text);}
.hero-facts .lbl{font-size:13px;color:var(--text-3);}

.hero-visual{
  position:relative;
  border-radius:var(--radius-lg);
  overflow:hidden;
  border:1px solid var(--border);
  box-shadow:var(--shadow-card);
  background:var(--float);
}
.hero-visual img{
  width:100%;
  aspect-ratio:16/11;
  object-fit:cover;
  opacity:.72;
}
.hero-visual::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(160deg,rgba(6,12,22,.25),rgba(6,12,22,.85));
}
.float-card{
  position:absolute;
  z-index:2;
  padding:14px 16px;
  border-radius:var(--radius-md);
  background:rgba(16,30,49,.78);
  border:1px solid var(--border);
  backdrop-filter:blur(14px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06),var(--shadow-card);
}
.float-card .k{font-size:12px;color:var(--text-3);letter-spacing:.06em;}
.float-card .v{font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-size:19px;font-weight:700;color:var(--text);margin-top:2px;}
.float-card.fc-a{left:22px;bottom:26px;}
.float-card.fc-b{right:18px;top:22px;}
.dot-live{
  display:inline-block;width:8px;height:8px;border-radius:50%;
  background:var(--primary);
  box-shadow:0 0 0 4px rgba(63,224,208,.16);
  margin-right:8px;
  vertical-align:middle;
}

/* ---------- 板块 ---------- */
.section{padding:76px 0;}
.section-alt{background:var(--panel);border-top:1px solid var(--border);border-bottom:1px solid var(--border);}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:32px;
  margin-bottom:40px;
}
.section-head h2{font-size:32px;line-height:1.35;font-weight:600;}
.section-sub{font-size:15px;color:var(--text-2);max-width:34em;}

/* ---------- 指标条 ---------- */
.metric-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.metric{
  padding:26px 24px 22px;
  border-radius:var(--radius-lg);
  background:var(--card-bg);
  border:1px solid var(--border);
  box-shadow:var(--shadow-card);
  backdrop-filter:blur(14px);
  transition:transform .25s ease,border-color .25s ease;
}
.metric:hover{transform:translateY(-4px);border-color:var(--border-strong);}
.metric .metric-top{display:flex;align-items:center;justify-content:space-between;gap:12px;}
.metric .label{font-size:14px;color:var(--text-2);}
.metric-val{margin-top:10px;display:flex;align-items:baseline;gap:6px;}
.metric-val .num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-size:38px;font-weight:700;line-height:1;}
.metric-val .unit{font-size:14px;color:var(--text-3);}
.metric-note{margin-top:10px;font-size:13px;color:var(--text-3);}
.metric-bar{margin-top:16px;height:4px;border-radius:4px;background:rgba(255,255,255,.07);overflow:hidden;}
.metric-bar span{display:block;height:100%;border-radius:4px;background:linear-gradient(90deg,#3FE0D0,#2BB8E8);box-shadow:0 0 12px rgba(63,224,208,.5);}

/* ---------- 卡片 ---------- */
.panel-card{
  position:relative;
  height:100%;
  display:flex;
  flex-direction:column;
  padding:24px;
  border-radius:var(--radius-lg);
  background:var(--card-bg);
  border:1px solid var(--border);
  backdrop-filter:blur(14px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06),var(--shadow-card);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.panel-card:hover{
  transform:translateY(-4px);
  border-color:var(--border-strong);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06),var(--shadow-hover);
}
.panel-card--lg{padding:28px;}
.card-media{
  border-radius:var(--radius-sm);
  overflow:hidden;
  margin-bottom:22px;
  border:1px solid var(--border);
}
.card-media img{width:100%;aspect-ratio:16/9;object-fit:cover;opacity:.82;transition:opacity .25s ease,transform .4s ease;}
.panel-card--lg:hover .card-media img{opacity:.95;transform:scale(1.02);}
.panel-card h3{font-size:22px;font-weight:600;line-height:1.45;margin-top:14px;}
.panel-card p.desc{margin-top:12px;font-size:15px;color:var(--text-2);}
.check-list{margin-top:20px;display:flex;flex-direction:column;gap:12px;}
.check-list li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--text-2);line-height:1.7;}
.check-list li::before{
  content:"";
  flex:0 0 16px;
  width:16px;height:16px;
  margin-top:4px;
  border-radius:5px;
  background:rgba(63,224,208,.14);
  border:1px solid rgba(63,224,208,.32);
  position:relative;
}
.check-list li::after{
  content:"";
  position:absolute;
}
.check-list li{position:relative;}
.check-list li span.tick{
  position:absolute;
  left:5px;top:8px;
  width:6px;height:10px;
  border-right:2px solid var(--primary);
  border-bottom:2px solid var(--primary);
  transform:rotate(42deg);
}
.card-foot{margin-top:auto;padding-top:22px;}

.mini-grid{height:100%;}
.mini-card{
  height:100%;
  padding:20px;
  border-radius:var(--radius-md);
  background:var(--card-bg);
  border:1px solid var(--border);
  backdrop-filter:blur(14px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06),var(--shadow-card);
  display:flex;
  flex-direction:column;
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.mini-card:hover{transform:translateY(-4px);border-color:var(--border-strong);box-shadow:inset 0 1px 0 rgba(255,255,255,.06),var(--shadow-hover);}
.icon-box{
  width:40px;height:40px;
  border-radius:11px;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.05);
  border:1px solid var(--border);
  color:var(--primary);
  transition:background .25s ease,border-color .25s ease;
}
.mini-card:hover .icon-box,.panel-card:hover .icon-box{background:rgba(63,224,208,.12);border-color:rgba(63,224,208,.3);}
.mini-card h4{font-size:16px;font-weight:600;margin-top:16px;line-height:1.5;}
.mini-card p{font-size:14px;color:var(--text-2);margin-top:8px;line-height:1.7;}
.mini-card .card-foot{padding-top:18px;}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:900px;margin:0 auto;}
.faq-item{
  border-radius:var(--radius-md);
  background:var(--card-bg);
  border:1px solid var(--border);
  backdrop-filter:blur(14px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06),var(--shadow-card);
  position:relative;
  overflow:hidden;
  transition:border-color .22s ease,background .22s ease;
}
.faq-item::before{
  content:"";
  position:absolute;left:0;top:14px;bottom:14px;
  width:2px;border-radius:2px;
  background:var(--primary);
  opacity:0;
  transition:opacity .22s ease;
}
.faq-item.is-open{border-color:var(--border-strong);background:rgba(16,30,49,.8);}
.faq-item.is-open::before{opacity:1;}
.faq-q{margin:0;}
.faq-toggle{
  width:100%;
  display:flex;align-items:center;gap:16px;
  padding:20px 22px;
  background:transparent;
  border:0;
  text-align:left;
  color:var(--text);
  cursor:pointer;
}
.faq-num{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  font-size:14px;
  color:var(--primary);
  flex:0 0 auto;
}
.faq-text{flex:1 1 auto;font-size:17px;font-weight:600;line-height:1.6;}
.faq-icon{position:relative;width:18px;height:18px;flex:0 0 18px;}
.faq-icon::before,.faq-icon::after{
  content:"";
  position:absolute;
  background:var(--primary);
  border-radius:2px;
  transition:transform .22s ease,opacity .22s ease;
}
.faq-icon::before{left:0;top:8px;width:18px;height:2px;}
.faq-icon::after{left:8px;top:0;width:2px;height:18px;}
.faq-toggle[aria-expanded="true"] .faq-icon::after{transform:rotate(90deg);opacity:0;}
.faq-body{padding:0 22px 22px 60px;font-size:15px;color:var(--text-2);line-height:1.85;}

/* ---------- CTA 条 ---------- */
.cta-band{
  padding:52px;
  border-radius:var(--radius-lg);
  border:1px solid var(--border);
  background:
    radial-gradient(560px 300px at 88% -20%,rgba(63,224,208,.14),transparent 62%),
    linear-gradient(160deg,rgba(16,30,49,.92),rgba(11,21,36,.92));
  box-shadow:var(--shadow-card);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:32px;
}
.cta-band h2{font-size:30px;font-weight:600;line-height:1.35;max-width:22em;}
.cta-band p{margin-top:12px;font-size:15px;color:var(--text-2);max-width:34em;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:96px;
  background:#040A12;
  border-top:1px solid var(--border);
  padding-top:72px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:52px;
}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px;}
.footer-brand .brand-text strong{font-size:17px;}
.footer-brand .brand-text em{font-size:12px;}
.footer-desc{font-size:14px;color:var(--text-2);line-height:1.8;max-width:28em;}
.footer-title{font-size:15px;font-weight:600;margin-bottom:18px;color:var(--text);}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{font-size:14px;color:var(--text-2);transition:color .18s ease;}
.footer-links a:hover{color:var(--primary);}
.footer-contact{display:flex;flex-direction:column;gap:11px;font-size:14px;color:var(--text-2);}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  padding:22px 0 30px;
  border-top:1px solid var(--border);
  font-size:13px;
  color:var(--text-3);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .page-hero h1{font-size:40px;}
  .section-head h2{font-size:28px;}
  .cta-band h2{font-size:26px;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px;}
}
@media (max-width:991.98px){
  .section{padding:64px 0;}
  .page-hero{padding-top:calc(var(--nav-h) + 34px);padding-bottom:44px;}
  .page-hero h1{font-size:34px;max-width:100%;}
  .hero-visual{margin-top:28px;}
  .hero-visual img{aspect-ratio:16/8;}
  .metric-strip{grid-template-columns:1fr 1fr;}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:32px;}
  .cta-band{padding:38px 28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767.98px){
  :root{--nav-h:56px;}
  body::before{display:none;}
  .site-container{padding:0 16px;}
  .main-nav{display:none;}
  .nav-toggle{
    display:inline-flex;align-items:center;justify-content:center;
    width:40px;height:40px;border-radius:10px;
    background:transparent;border:1px solid var(--border);color:var(--text-2);
  }
  .nav-toggle:hover{color:var(--primary);border-color:var(--border-strong);}
  .nav-actions .btn{display:none;}
  .page-hero h1{font-size:29px;}
  .hero-lead{font-size:16px;}
  .hero-actions{width:100%;}
  .hero-actions .btn{flex:1 1 100%;}
  .hero-facts{gap:20px;}
  .section{padding:48px 0;}
  .section-head h2{font-size:23px;}
  .metric-strip{grid-template-columns:1fr;gap:16px;}
  .metric{padding:20px;}
  .metric-val .num{font-size:32px;}
  .panel-card,.panel-card--lg{padding:20px;}
  .cta-band{padding:30px 20px;flex-direction:column;align-items:flex-start;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 100%;}
  .faq-text{font-size:16px;}
  .faq-body{padding:0 18px 20px 18px;}
  .faq-toggle{padding:18px 18px;}
  .footer-grid{grid-template-columns:1fr;gap:30px;padding-bottom:36px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* roulang page: category2 */
:root{
  --bg:#060C16;
  --panel:#0B1524;
  --float:#101E31;
  --glass:rgba(16,30,49,.62);
  --primary:#3FE0D0;
  --primary-hover:#62EBDE;
  --primary-active:#2BC4B6;
  --accent:#FFB454;
  --text:#E8F1FA;
  --text-2:#94A7BF;
  --text-3:#5D7A96;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --primary-soft:rgba(63,224,208,.12);
  --primary-line:rgba(63,224,208,.35);
  --r-lg:18px;
  --r-md:14px;
  --r-sm:12px;
  --shadow-card:0 18px 38px -22px rgba(0,0,0,.75);
  --shadow-card-hover:0 26px 52px -24px rgba(0,0,0,.85);
  --font:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --mono:ui-monospace,"JetBrains Mono",Menlo,Consolas,monospace;
  --nav-h:64px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background:
    radial-gradient(900px 620px at 10% -12%, rgba(63,224,208,.06), transparent 62%),
    radial-gradient(760px 560px at 102% 108%, rgba(255,180,84,.05), transparent 60%);
}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--primary-hover);}
h1,h2,h3,h4{margin:0;color:var(--text);font-weight:600;letter-spacing:.01em;}
p{margin:0;}
ul,ol{margin:0;padding:0;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px;}

.site-container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
  position:relative;
  z-index:1;
}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums;}

/* ---------- 头部导航 ---------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:1000;
  transition:background .2s ease,border-color .2s ease,backdrop-filter .2s ease;
  border-bottom:1px solid transparent;
}
.site-header.is-scrolled{
  background:rgba(6,12,22,.82);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
}
.header-inner{
  height:var(--nav-h);
  display:flex;
  align-items:center;
  gap:24px;
}
.brand{
  display:flex;
  align-items:center;
  gap:12px;
  flex:0 0 auto;
  color:var(--text);
}
.brand:hover{color:var(--text);}
.brand-mark{
  width:38px;height:38px;
  border-radius:11px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,#3FE0D0,#2BB8E8);
  box-shadow:0 0 0 1px rgba(63,224,208,.35),0 10px 24px -12px rgba(63,224,208,.6);
  flex:0 0 auto;
}
.brand-mark svg{width:22px;height:22px;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-size:17px;font-weight:700;letter-spacing:.02em;}
.brand-text em{font-style:normal;font-size:11px;color:var(--text-2);letter-spacing:.06em;}
.main-nav{
  display:flex;
  align-items:center;
  gap:6px;
  margin-left:12px;
}
.nav-link{
  position:relative;
  padding:8px 14px;
  font-size:15px;
  color:var(--text-2);
  border-radius:10px;
  white-space:nowrap;
  transition:color .2s ease,background .2s ease;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:2px;
  height:2px;
  border-radius:2px;
  background:var(--primary);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .2s ease;
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.04);}
.nav-link.is-active{color:var(--primary);}
.nav-link.is-active::after{transform:scaleX(1);}
.header-actions{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:12px;
}
.icon-btn{
  width:40px;height:40px;
  display:grid;place-items:center;
  border-radius:11px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  color:var(--text-2);
  cursor:pointer;
  transition:color .2s ease,border-color .2s ease,background .2s ease;
}
.icon-btn:hover{color:var(--primary);border-color:var(--primary-line);background:var(--primary-soft);}
.icon-btn svg{width:18px;height:18px;}
.menu-toggle{display:none;}

/* 按钮体系 */
.rl-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 24px;
  border-radius:var(--r-sm);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  white-space:nowrap;
  transition:transform .18s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.rl-btn.sm{height:40px;padding:0 18px;font-size:14px;}
.rl-btn-glow{
  background:linear-gradient(135deg,#3FE0D0,#2BB8E8);
  color:#04121A;
  box-shadow:0 0 0 1px rgba(63,224,208,.35),0 10px 26px -10px rgba(63,224,208,.55);
}
.rl-btn-glow:hover{
  color:#04121A;
  box-shadow:0 0 0 1px rgba(63,224,208,.5),0 14px 34px -10px rgba(63,224,208,.7);
  transform:translateY(-1px);
}
.rl-btn-glow:active{transform:translateY(1px);}
.rl-btn-ghost{
  background:transparent;
  color:var(--primary);
  border-color:var(--primary-line);
}
.rl-btn-ghost:hover{
  color:var(--primary-hover);
  border-color:var(--primary);
  background:var(--primary-soft);
}
.rl-btn-ghost:active{transform:translateY(1px);}
.rl-btn-text{
  background:none;
  border:none;
  color:var(--primary);
  padding:0;
  height:auto;
  font-weight:600;
}
.rl-btn-text:hover{color:var(--primary-hover);}

/* 移动端抽屉 */
.mobile-drawer{
  display:none;
  background:rgba(6,12,22,.96);
  backdrop-filter:blur(16px);
  border-top:1px solid var(--line);
  padding:16px 24px 24px;
}
.mobile-drawer.is-open{display:block;}
.mobile-drawer a{
  display:block;
  padding:12px 4px;
  color:var(--text-2);
  font-size:16px;
  border-bottom:1px solid var(--line);
}
.mobile-drawer a.is-active{color:var(--primary);}
.mobile-drawer .drawer-foot{
  margin-top:18px;
  display:flex;
  gap:12px;
  flex-wrap:wrap;
}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  padding:calc(var(--nav-h) + 40px) 0 56px;
  background:var(--panel);
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.hero::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:linear-gradient(rgba(255,255,255,.02) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.02) 1px,transparent 1px);
  background-size:64px 64px;
  opacity:.5;
  pointer-events:none;
}
.hero .site-container{z-index:2;}
.crumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-3);
  margin-bottom:18px;
}
.crumb a{color:var(--text-2);}
.crumb a:hover{color:var(--primary);}
.crumb .sep{color:var(--text-3);}
.crumb .now{color:var(--text-3);}
.hero h1{
  font-size:clamp(28px,4vw,46px);
  font-weight:700;
  line-height:1.28;
  margin-bottom:18px;
}
.hero h1 .hl{color:var(--primary);}
.hero-sub{
  font-size:16px;
  color:var(--text-2);
  max-width:600px;
  margin-bottom:28px;
}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;}
.hero-note{
  margin-top:26px;
  display:flex;
  gap:26px;
  flex-wrap:wrap;
}
.hero-note div{display:flex;flex-direction:column;}
.hero-note strong{
  font-family:var(--mono);
  font-size:22px;
  color:var(--primary);
  font-weight:600;
}
.hero-note span{font-size:13px;color:var(--text-3);}
.hero-visual{
  position:relative;
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  aspect-ratio:4/3;
  background:var(--float);
}
.hero-visual > img{
  width:100%;height:100%;
  object-fit:cover;
  opacity:.72;
}
.visual-card{
  position:absolute;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:14px 16px;
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card);
  font-size:13px;
  color:var(--text-2);
}
.visual-card strong{
  display:block;
  font-size:12px;
  color:var(--text-3);
  font-weight:500;
  letter-spacing:.06em;
  margin-bottom:6px;
}
.visual-card .vc-val{
  font-family:var(--mono);
  font-size:16px;
  color:var(--primary);
}
.vc-a{left:18px;bottom:22px;min-width:170px;}
.vc-b{right:18px;top:20px;min-width:150px;}
.vc-b .vc-val{color:var(--accent);}

/* ---------- 板块通用 ---------- */
.section{padding:96px 0;position:relative;}
.section.alt{background:var(--panel);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{margin-bottom:44px;}
.section-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:.14em;
  color:var(--primary);
  text-transform:uppercase;
  margin-bottom:14px;
}
.section-tag::before{
  content:"";
  width:22px;height:1px;
  background:var(--primary);
  display:inline-block;
}
.section-title{font-size:clamp(24px,2.6vw,33px);line-height:1.35;}
.section-desc{margin-top:14px;color:var(--text-2);max-width:760px;font-size:15.5px;}

/* ---------- 卡片 ---------- */
.rl-card{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:24px;
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.06);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
  height:100%;
  display:flex;
  flex-direction:column;
}
.rl-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-card-hover);
  border-color:var(--primary-line);
}
.card-title{font-size:19px;margin-bottom:10px;}
.card-text{color:var(--text-2);font-size:15px;}
.badge{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 12px;
  border-radius:999px;
  font-size:12px;
  font-weight:600;
  letter-spacing:.04em;
}
.badge-cyan{background:var(--primary-soft);color:var(--primary);}
.badge-amber{background:rgba(255,180,84,.14);color:var(--accent);}

/* 对照表 */
.compare-card{padding:0;overflow:hidden;}
.compare-head{
  padding:20px 24px;
  border-bottom:1px solid var(--line);
  display:flex;
  align-items:center;
  gap:12px;
}
.compare-head .num{
  font-family:var(--mono);
  font-size:13px;
  color:var(--text-3);
}
.compare-head h3{font-size:18px;}
.compare-head.is-bad h3{color:var(--text-2);}
.compare-head.is-good h3{color:var(--primary);}
.compare-list{list-style:none;padding:8px 0;}
.compare-list li{
  padding:16px 24px;
  display:flex;
  gap:14px;
  border-bottom:1px solid rgba(255,255,255,.05);
  font-size:15px;
  color:var(--text-2);
}
.compare-list li:last-child{border-bottom:none;}
.compare-list li .idx{
  font-family:var(--mono);
  font-size:12px;
  color:var(--text-3);
  padding-top:4px;
  flex:0 0 auto;
}
.compare-card.is-good{border-color:rgba(63,224,208,.22);}
.compare-card.is-good .compare-list li:nth-child(odd){background:rgba(63,224,208,.03);}
.compare-card.is-bad .compare-list li:nth-child(odd){background:rgba(255,255,255,.02);}

/* 时间线 */
.timeline{list-style:none;position:relative;padding-left:0;}
.timeline::before{
  content:"";
  position:absolute;
  left:19px;top:12px;bottom:26px;
  width:2px;
  background:linear-gradient(180deg,rgba(63,224,208,.6),rgba(63,224,208,.06));
}
.tl-item{position:relative;padding:0 0 30px 66px;}
.tl-item:last-child{padding-bottom:0;}
.tl-dot{
  position:absolute;
  left:0;top:0;
  width:40px;height:40px;
  border-radius:999px;
  display:grid;place-items:center;
  font-family:var(--mono);
  font-size:13px;
  color:var(--primary);
  background:var(--float);
  border:1px solid rgba(63,224,208,.45);
  box-shadow:0 0 0 6px rgba(6,12,22,.9),0 0 20px -6px rgba(63,224,208,.6);
}
.tl-item h3{font-size:19px;margin-bottom:8px;}
.tl-item p{color:var(--text-2);font-size:15px;max-width:760px;}

/* 勾选列表 */
.check-list{list-style:none;margin-top:18px;display:flex;flex-direction:column;gap:10px;}
.check-list li{
  display:flex;
  gap:10px;
  font-size:15px;
  color:var(--text-2);
  line-height:1.7;
}
.check-list li::before{
  content:"";
  flex:0 0 auto;
  width:16px;height:16px;
  margin-top:6px;
  border-radius:5px;
  border:1px solid var(--primary-line);
  background:
    linear-gradient(135deg,rgba(63,224,208,.9),rgba(43,184,232,.9));
  box-shadow:0 0 12px -4px rgba(63,224,208,.8);
}

/* 核对记录卡片 */
.record-card{padding:0;overflow:hidden;}
.record-card .thumb{
  aspect-ratio:16/9;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.record-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.record-card:hover .thumb img{transform:scale(1.04);}
.record-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:12px;flex:1 1 auto;}
.record-body h3{font-size:18px;line-height:1.5;}
.record-body p{color:var(--text-2);font-size:14.5px;}
.record-meta{
  margin-top:auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding-top:14px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--text-3);
}

/* FAQ */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:920px;}
.faq-item{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;
  transition:border-color .2s ease,background .2s ease;
}
.faq-item:hover{border-color:rgba(255,255,255,.16);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  gap:16px;
  padding:20px 22px;
  background:none;
  border:none;
  color:var(--text);
  font-size:16.5px;
  font-weight:600;
  text-align:left;
  cursor:pointer;
  line-height:1.6;
}
.faq-q .faq-idx{
  font-family:var(--mono);
  font-size:13px;
  color:var(--primary);
  flex:0 0 auto;
}
.faq-q .faq-icon{
  margin-left:auto;
  flex:0 0 auto;
  width:22px;height:22px;
  position:relative;
}
.faq-q .faq-icon::before,
.faq-q .faq-icon::after{
  content:"";
  position:absolute;
  background:var(--text-2);
  transition:transform .25s ease,background .25s ease;
}
.faq-q .faq-icon::before{left:2px;right:2px;top:10px;height:2px;}
.faq-q .faq-icon::after{top:2px;bottom:2px;left:10px;width:2px;}
.faq-q[aria-expanded="true"]{color:var(--primary);}
.faq-q[aria-expanded="true"] .faq-icon::after{transform:scaleY(0);}
.faq-q[aria-expanded="true"] .faq-icon::before{background:var(--primary);}
.faq-a{
  padding:0 22px 22px 60px;
  color:var(--text-2);
  font-size:15px;
  position:relative;
}
.faq-item.is-open{border-color:var(--primary-line);}
.faq-item.is-open::before{content:"";}

/* CTA */
.cta-band{
  position:relative;
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--line);
  padding:48px;
  background:var(--float);
}
.cta-band .cta-bg{
  position:absolute;
  inset:0;
  object-fit:cover;
  width:100%;height:100%;
  opacity:.28;
}
.cta-band .cta-mask{
  position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(6,12,22,.94) 0%,rgba(6,12,22,.74) 58%,rgba(6,12,22,.5) 100%);
}
.cta-inner{position:relative;z-index:2;max-width:640px;}
.cta-inner h2{font-size:clamp(22px,2.4vw,30px);margin-bottom:14px;}
.cta-inner p{color:var(--text-2);font-size:15.5px;margin-bottom:26px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* 页脚 */
.site-footer{
  background:#040A12;
  border-top:1px solid var(--line);
  padding:64px 0 0;
  position:relative;
  z-index:1;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:44px;
}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.footer-brand .brand-mark{width:36px;height:36px;border-radius:10px;}
.footer-brand .brand-text strong{font-size:16px;}
.footer-brand .brand-text em{font-size:11px;}
.footer-desc{color:var(--text-3);font-size:14px;line-height:1.8;max-width:340px;}
.footer-title{font-size:15px;margin-bottom:16px;color:var(--text);}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{color:var(--text-2);font-size:14px;}
.footer-links a:hover{color:var(--primary);}
.footer-contact{display:flex;flex-direction:column;gap:10px;color:var(--text-2);font-size:14px;}
.footer-contact span{color:var(--text-3);}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:20px 0 26px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--text-3);
}

/* 响应式 */
@media (max-width:1199.98px){
  .hero h1{font-size:clamp(26px,3.6vw,40px);}
  .section{padding:72px 0;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px;}
}
@media (max-width:991.98px){
  .main-nav{display:none;}
  .menu-toggle{display:grid;}
  .hero{padding:calc(var(--nav-h) + 32px) 0 48px;}
  .hero-visual{margin-top:36px;aspect-ratio:16/10;}
  .section{padding:64px 0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .faq-a{padding-left:22px;}
}
@media (max-width:767.98px){
  :root{--nav-h:56px;}
  .site-container{padding:0 16px;}
  .brand-text em{display:none;}
  .header-actions .rl-btn{display:none;}
  .hero{padding:calc(var(--nav-h) + 24px) 0 40px;}
  .hero-note{gap:18px;}
  .section{padding:48px 0;}
  .section-head{margin-bottom:32px;}
  .rl-card{padding:20px;}
  .compare-list li{padding:14px 20px;}
  .tl-item{padding-left:58px;}
  .cta-band{padding:28px 22px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  body::before{display:none;}
}
@media (max-width:520px){
  .hero h1{font-size:26px;}
  .hero-actions .rl-btn{width:100%;}
  .cta-actions .rl-btn{width:100%;}
  .visual-card{position:static;margin:0;border-radius:0;border-left:none;border-right:none;}
  .vc-a,.vc-b{left:auto;right:auto;top:auto;bottom:auto;min-width:0;width:100%;}
  .hero-visual{aspect-ratio:auto;display:flex;flex-direction:column;}
  .hero-visual > img{height:200px;}
}