/* roulang page: index */
:root{
  --primary:#12B8C9;
  --primary-dark:#0A8E9C;
  --glow:#5FE3F2;
  --accent:#FF6A2B;
  --bg:#070C16;
  --panel:#0F1728;
  --panel-2:#16223A;
  --light:#F4F7FB;
  --text:#EAF1FA;
  --text-2:#9FB0C6;
  --text-3:#6B7C93;
  --ink:#0E1A2B;
  --ink-2:#4A5B72;
  --topbar:#F5F8FC;
  --topbar-line:#E4EAF3;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --ok:#23C08A;
  --warn:#FFB020;
  --err:#FF5A5A;
  --r-card:16px;
  --r-btn:10px;
  --r-img:12px;
  --r-badge:6px;
  --shadow-dark:0 8px 30px rgba(0,0,0,.45);
  --shadow-light:0 6px 24px rgba(15,30,60,.08);
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Courier New",monospace;
}
*,*::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","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.8;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;}
a:hover,a:focus{color:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.35;letter-spacing:0;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
input,select,textarea{font-family:inherit;font-size:16px;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
.container{max-width:1200px;margin:0 auto;padding:0 24px;width:100%;}
.section{padding:96px 0;position:relative;}
.section--tight{padding:72px 0;}
.section--dark{background:var(--bg);}
.section--panel{background:var(--panel);}
.section--light{background:var(--light);color:var(--ink);}
.section--light .lead{color:var(--ink-2);}
.stripe-bg::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(135deg,rgba(255,255,255,.045) 0 2px,transparent 2px 13px);
  opacity:.7;
}
.section-head{margin-bottom:40px;position:relative;}
.section-head h2{font-size:32px;font-weight:800;}
.section-head .lead{margin-top:12px;color:var(--text-2);font-size:16px;max-width:760px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.06em;text-transform:uppercase;
  color:var(--glow);font-family:var(--mono);margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--primary);display:inline-block;}
.section--light .eyebrow{color:var(--primary-dark);}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;top:0;z-index:120;
  background:var(--topbar);
  border-bottom:1px solid var(--topbar-line);
  box-shadow:0 2px 12px rgba(15,30,60,.06);
}
.nav-wrap{
  max-width:1200px;margin:0 auto;padding:0 24px;height:64px;
  display:flex;align-items:center;gap:20px;
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:40px;height:40px;border-radius:8px;flex-shrink:0;
  background:linear-gradient(140deg,var(--glow),var(--primary) 45%,var(--primary-dark));
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 4px 14px rgba(18,184,201,.35);
}
.brand-mark span{
  width:16px;height:16px;border:2.5px solid #fff;border-radius:3px;
  transform:rotate(45deg);display:block;
}
.brand-name{
  font-size:17px;font-weight:800;color:var(--ink);white-space:nowrap;
}
.main-nav{display:flex;align-items:center;gap:4px;flex:1;min-width:0;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:64px;
  padding:0 14px;font-size:15px;font-weight:600;color:var(--ink);
  transition:color .2s ease;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;
  background:var(--primary);opacity:0;transition:opacity .2s ease;
}
.nav-link:hover{color:var(--primary-dark);}
.nav-link:hover::after{opacity:.45;}
.nav-link.active{color:var(--primary-dark);}
.nav-link.active::after{opacity:1;}
.nav-tools{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.nav-search{
  display:flex;align-items:center;gap:8px;
  height:38px;width:196px;padding:0 16px;
  background:#fff;border:1px solid var(--topbar-line);border-radius:999px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.nav-search i{color:var(--text-3);font-size:13px;}
.nav-search input{
  border:0;background:transparent;outline:none;width:100%;height:100%;
  font-size:14px;color:var(--ink);
}
.nav-search input::placeholder{color:#9AA8BC;}
.nav-search:focus-within{border-color:var(--primary);box-shadow:0 0 0 4px rgba(18,184,201,.12);}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--topbar-line);
  background:#fff;cursor:pointer;padding:0;align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .2s ease;}
.mobile-drawer{
  display:none;background:var(--topbar);border-top:1px solid var(--topbar-line);
  padding:16px 24px 24px;
}
.mobile-drawer.open{display:block;}
.mobile-drawer .drawer-link{
  display:block;padding:14px 0;border-bottom:1px solid var(--topbar-line);
  color:var(--ink);font-weight:600;font-size:16px;
}
.mobile-drawer .drawer-link.active{color:var(--primary-dark);}
.mobile-drawer .drawer-search{margin:16px 0;}
.mobile-drawer .drawer-search .nav-search{width:100%;}
.mobile-drawer .btn{width:100%;justify-content:center;margin-top:8px;}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;cursor:pointer;border:1px solid transparent;
  transition:transform .18s ease,box-shadow .22s ease,background-color .2s ease,color .2s ease,border-color .2s ease,filter .2s ease;
  text-align:center;line-height:1.2;
}
.btn-primary{
  background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);
  color:#fff;box-shadow:0 6px 20px rgba(18,184,201,.34);
}
.btn-primary:hover{filter:brightness(1.08);box-shadow:0 8px 30px rgba(95,227,242,.46);transform:translateY(-1px);color:#fff;}
.btn-primary:active{transform:translateY(0);filter:brightness(.98);box-shadow:0 4px 12px rgba(18,184,201,.3);}
.btn-ghost{
  background:transparent;border-color:var(--primary);color:var(--primary);
}
.btn-ghost:hover{background:rgba(18,184,201,.1);color:var(--glow);border-color:var(--glow);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0);background:rgba(18,184,201,.16);}
.btn-quiet{
  background:transparent;border:0;color:var(--primary);padding:0 4px;min-height:auto;
  font-weight:700;
}
.btn-quiet:hover{color:var(--glow);}
.btn-quiet i{transition:transform .2s ease;}
.btn-quiet:hover i{transform:translateX(3px);}
.btn-accent{
  background:linear-gradient(135deg,#FF8248 0%,var(--accent) 100%);
  color:#1A0B03;box-shadow:0 6px 22px rgba(255,106,43,.4);
}
.btn-accent:hover{filter:brightness(1.06);box-shadow:0 10px 30px rgba(255,106,43,.5);transform:translateY(-1px);color:#1A0B03;}
.btn-accent:active{transform:translateY(0);}
.btn-pill{border-radius:999px;}
.btn-block{width:100%;}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  min-height:620px;display:flex;align-items:center;
  padding:88px 0 84px;
  background:
    linear-gradient(92deg,rgba(7,12,22,.96) 0%,rgba(7,12,22,.86) 42%,rgba(7,12,22,.58) 100%),
    url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  border-bottom:1px solid var(--line);
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(135deg,rgba(255,255,255,.05) 0 2px,transparent 2px 14px);
  opacity:.55;
}
.hero::after{
  content:"";position:absolute;right:-10%;bottom:-30%;width:64%;height:110%;
  background:radial-gradient(circle at 70% 70%,rgba(18,184,201,.22),transparent 62%);
  pointer-events:none;
}
.hero .container{position:relative;z-index:2;}
.hero-grid{display:grid;grid-template-columns:minmax(0,6fr) minmax(0,5fr);gap:56px;align-items:center;}
.hero-badge{
  display:inline-flex;align-items:center;gap:10px;
  padding:6px 14px;border-radius:999px;margin-bottom:22px;
  background:rgba(18,184,201,.12);border:1px solid rgba(95,227,242,.35);
  color:var(--glow);font-size:13px;font-weight:600;font-family:var(--mono);
}
.hero-badge .dot{width:7px;height:7px;border-radius:50%;background:var(--glow);box-shadow:0 0 10px var(--glow);}
.hero h1{
  font-size:clamp(32px,4.6vw,54px);font-weight:800;line-height:1.24;
  color:#fff;margin-bottom:20px;
}
.hero h1 em{font-style:normal;color:var(--glow);}
.hero-sub{font-size:17px;color:var(--text-2);max-width:560px;margin-bottom:32px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:38px;}
.trust-bar{
  display:flex;flex-wrap:wrap;gap:12px;
}
.trust-item{
  flex:1 1 130px;min-width:120px;
  padding:14px 16px;border-radius:12px;
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  backdrop-filter:blur(10px);
}
.trust-num{font-family:var(--mono);font-size:22px;font-weight:700;color:var(--glow);letter-spacing:.02em;}
.trust-label{font-size:13px;color:var(--text-3);margin-top:2px;}
.hero-visual{position:relative;}
.hero-visual img{
  width:100%;border-radius:var(--r-card);box-shadow:var(--shadow-dark);
  border:1px solid var(--line);aspect-ratio:16/12;object-fit:cover;
}
.glass-card{
  position:absolute;left:-18px;bottom:-24px;width:min(300px,86%);
  padding:18px 20px;border-radius:14px;
  background:rgba(15,23,40,.72);border:1px solid rgba(95,227,242,.28);
  backdrop-filter:blur(14px);box-shadow:0 18px 46px rgba(0,0,0,.5);
}
.glass-card .gc-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:10px;}
.glass-card .gc-title{font-size:13px;color:var(--text-2);}
.glass-card .gc-status{font-size:12px;font-family:var(--mono);color:var(--ok);}
.glass-card .gc-line{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--text-2);padding:6px 0;border-top:1px dashed rgba(255,255,255,.1);}
.glass-card .gc-line:first-of-type{border-top:0;}
.glass-card .gc-line b{color:#fff;font-family:var(--mono);font-weight:700;}

/* ---------- Steps ---------- */
.steps-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.step-card{
  position:relative;padding:30px 26px;border-radius:var(--r-card);
  background:var(--panel);border:1px solid var(--line);
  box-shadow:var(--shadow-dark);
  transition:transform .22s ease,border-color .22s ease;
}
.step-card::before{
  content:"";position:absolute;left:0;top:26px;bottom:26px;width:3px;border-radius:3px;
  background:linear-gradient(180deg,var(--glow),var(--primary-dark));
}
.step-card:hover{transform:translateY(-4px);border-color:rgba(18,184,201,.4);}
.step-num{font-family:var(--mono);font-size:34px;font-weight:700;color:rgba(95,227,242,.85);line-height:1;}
.step-card h3{font-size:20px;margin:16px 0 10px;color:#fff;}
.step-card p{font-size:15px;color:var(--text-2);}

/* ---------- Tiers ---------- */
.tiers{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;align-items:end;}
.tier{
  position:relative;padding:26px 22px 24px;border-radius:var(--r-card);
  background:var(--panel);border:1px solid var(--line);
  box-shadow:var(--shadow-dark);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.tier-1{min-height:300px;}
.tier-2{min-height:340px;}
.tier-3{min-height:380px;border-color:rgba(95,227,242,.34);background:var(--panel-2);box-shadow:0 12px 40px rgba(18,184,201,.18);}
.tier-4{min-height:360px;}
.tier:hover{transform:translateY(-4px);border-color:rgba(18,184,201,.45);}
.tier-index{font-family:var(--mono);font-size:44px;font-weight:700;color:rgba(255,255,255,.14);line-height:1;}
.tier-3 .tier-index{color:rgba(95,227,242,.5);}
.tier h3{font-size:20px;margin:10px 0 8px;color:#fff;}
.tier .tier-desc{font-size:14px;color:var(--text-3);min-height:44px;margin-bottom:16px;}
.tier ul{margin-bottom:18px;}
.tier li{
  position:relative;padding-left:18px;font-size:14px;color:var(--text-2);
  margin-bottom:8px;line-height:1.7;
}
.tier li::before{
  content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:2px;
  background:var(--primary);transform:rotate(45deg);
}
.badge{
  display:inline-block;padding:3px 10px;border-radius:var(--r-badge);
  font-size:12px;font-weight:700;line-height:1.6;
}
.badge-primary{background:rgba(18,184,201,.16);color:var(--glow);}
.badge-accent{background:var(--accent);color:#1A0B03;}
.badge-muted{background:rgba(255,255,255,.07);color:var(--text-2);}
.badge-ink{background:rgba(18,184,201,.12);color:var(--primary-dark);}
.tier .badge{position:absolute;top:-12px;right:18px;}
.tier-link{margin-top:auto;display:inline-flex;}
.tiers-connect{
  height:1px;margin:0 12px 34px;
  background-image:repeating-linear-gradient(90deg,rgba(95,227,242,.4) 0 8px,transparent 8px 18px);
}

/* ---------- Plans (light) ---------- */
.plan-table-wrap{
  overflow-x:auto;border-radius:var(--r-card);border:1px solid #E3E9F2;background:#fff;
  box-shadow:var(--shadow-light);
}
.plan-table{width:100%;border-collapse:collapse;min-width:760px;}
.plan-table th,.plan-table td{
  padding:0 20px;height:56px;text-align:left;font-size:15px;
  border-bottom:1px solid #EDF1F7;vertical-align:middle;
}
.plan-table thead th{
  font-size:16px;font-weight:800;color:var(--ink);
  background:#F8FAFD;position:sticky;top:0;height:64px;
}
.plan-table tbody tr:nth-child(even){background:#FAFBFE;}
.plan-table th.feat-col,.plan-table td.feat-col{
  position:sticky;left:0;background:#fff;color:var(--ink-2);font-weight:600;z-index:2;
  border-right:1px solid #EDF1F7;
}
.plan-table tbody tr:nth-child(even) td.feat-col{background:#FAFBFE;}
.plan-table td{color:var(--ink-2);}
.plan-table .is-featured{
  background:rgba(18,184,201,.06);border-left:1px solid rgba(18,184,201,.22);border-right:1px solid rgba(18,184,201,.22);
}
.plan-table thead th.is-featured{background:rgba(18,184,201,.12);color:var(--primary-dark);position:relative;}
.plan-table thead th.is-featured .badge{position:absolute;top:6px;right:14px;}
.plan-table .cell-ok{color:var(--ok);font-weight:700;}
.plan-table .cell-no{color:#9AA8BC;}
.plan-actions{margin-top:28px;display:flex;flex-wrap:wrap;gap:14px;align-items:center;}
.plan-note{font-size:13px;color:var(--ink-2);}

/* ---------- Countdown strip ---------- */
.strip{
  position:relative;overflow:hidden;
  background:linear-gradient(90deg,rgba(18,184,201,.14),rgba(18,184,201,.04) 55%,rgba(255,106,43,.1));
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:34px 0;
}
.strip::before{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(135deg,rgba(255,255,255,.05) 0 2px,transparent 2px 12px);
  opacity:.6;pointer-events:none;
}
.strip-inner{
  position:relative;display:flex;flex-wrap:wrap;align-items:center;gap:24px;justify-content:space-between;
}
.strip-text{max-width:520px;}
.strip-text h2{font-size:24px;margin-bottom:6px;}
.strip-text p{font-size:14px;color:var(--text-2);}
.countdown{display:flex;align-items:center;gap:8px;}
.cd-box{
  min-width:60px;padding:10px 8px;border-radius:10px;text-align:center;
  background:rgba(7,12,22,.75);border:1px solid rgba(95,227,242,.45);
  box-shadow:0 0 18px rgba(95,227,242,.2) inset;
}
.cd-num{display:block;font-family:var(--mono);font-size:24px;font-weight:700;color:var(--glow);line-height:1.1;}
.cd-label{display:block;font-size:12px;color:var(--text-3);margin-top:4px;}
.cd-colon{font-family:var(--mono);font-size:22px;color:var(--text-3);}

/* ---------- News (CMS) ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.news-card{
  display:flex;flex-direction:column;height:100%;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--shadow-dark);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.news-card:hover{transform:translateY(-4px);border-color:rgba(18,184,201,.4);box-shadow:0 16px 44px rgba(0,0,0,.5);}
.news-cover{display:block;overflow:hidden;aspect-ratio:16/9;background:#0B1220;}
.news-cover img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.news-card:hover .news-cover img{transform:scale(1.03);}
.news-body{padding:20px 20px 18px;display:flex;flex-direction:column;gap:10px;flex:1;}
.news-body h3{
  font-size:18px;font-weight:700;line-height:1.5;color:#fff;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-body h3 a:hover{color:var(--glow);}
.news-sum{
  font-size:14px;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding-top:12px;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);font-family:var(--mono);
}
.news-meta a{color:var(--primary);font-family:inherit;font-weight:700;display:inline-flex;align-items:center;gap:6px;}
.news-meta a i{transition:transform .2s ease;}
.news-meta a:hover i{transform:translateX(3px);}
.news-more{margin-top:36px;text-align:center;}
.empty-state{
  padding:52px 24px;text-align:center;border-radius:var(--r-card);
  border:1px dashed var(--line-strong);background:rgba(255,255,255,.02);
}
.empty-state i{font-size:30px;color:var(--text-3);}
.empty-state p{margin-top:14px;color:var(--text-2);font-size:15px;}
.empty-state span{display:block;margin-top:6px;font-size:13px;color:var(--text-3);}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px;margin:0 auto;}
.foundation-faq.accordion{background:transparent;border:0;margin:0;}
.foundation-faq .accordion-item{
  background:rgba(255,255,255,.035);border:1px solid var(--line);
  border-radius:12px;margin-bottom:12px;overflow:hidden;
  backdrop-filter:blur(10px);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.foundation-faq .accordion-item:hover{border-color:var(--line-strong);}
.foundation-faq .accordion-item.is-active{
  border-color:rgba(18,184,201,.55);
  box-shadow:inset 3px 0 0 var(--primary),0 10px 30px rgba(0,0,0,.35);
}
.foundation-faq .accordion-title{
  border:0;padding:18px 54px 18px 22px;font-size:16px;font-weight:600;color:#fff;
  background:transparent;position:relative;line-height:1.6;
}
.foundation-faq .accordion-title::before{
  content:"+";position:absolute;right:20px;top:50%;transform:translateY(-50%);
  font-family:var(--mono);font-size:20px;color:var(--primary);transition:transform .2s ease;
}
.foundation-faq .accordion-item.is-active .accordion-title::before{content:"–";transform:translateY(-50%) rotate(180deg);}
.foundation-faq .accordion-content{
  border:0;background:transparent;padding:0 22px 20px;color:var(--text-2);font-size:15px;
}
.foundation-faq .accordion-content p{color:var(--text-2);}

/* ---------- Form ---------- */
.form-panel{
  border-radius:var(--r-card);padding:32px;
  background:rgba(15,23,40,.72);border:1px solid var(--line-strong);
  backdrop-filter:blur(14px);box-shadow:var(--shadow-dark);
}
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px 20px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field.full{grid-column:1 / -1;}
.field label{font-size:13px;color:var(--text-2);}
.field input,.field select,.field textarea{
  height:46px;padding:0 14px;border-radius:10px;
  background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.12);
  color:var(--text);outline:none;
  transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.field textarea{height:auto;min-height:120px;padding:12px 14px;resize:vertical;line-height:1.7;}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,#9FB0C6 50%),linear-gradient(135deg,#9FB0C6 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 15px) 21px;background-size:5px 5px,5px 5px;background-repeat:no-repeat;}
.field input::placeholder,.field textarea::placeholder{color:#6B7C93;}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--primary);background:rgba(18,184,201,.06);
  box-shadow:0 0 0 4px rgba(18,184,201,.14);
}
.field .hint{font-size:12px;color:var(--text-3);}
.field.has-error input,.field.has-error textarea,.field.has-error select{border-color:var(--accent);}
.field .err{font-size:12px;color:var(--accent);display:none;}
.field.has-error .err{display:block;}
.form-side{padding-left:8px;}
.form-side h3{font-size:20px;margin-bottom:14px;}
.form-side ul{margin-top:20px;}
.form-side li{
  position:relative;padding-left:22px;font-size:14px;color:var(--text-2);margin-bottom:12px;
}
.form-side li i{position:absolute;left:0;top:5px;color:var(--primary);font-size:13px;}
.form-grid-layout{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:44px;align-items:start;}

/* ---------- Footer ---------- */
.site-footer{
  background:#060A12;border-top:1px solid var(--line);padding:64px 0 0;color:var(--text-2);
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:36px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{width:36px;height:36px;}
.footer-brand span.fname{font-size:16px;font-weight:800;color:#fff;}
.footer-desc{font-size:14px;color:var(--text-3);max-width:320px;}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:700;}
.footer-col li{margin-bottom:10px;}
.footer-col a{
  font-size:14px;color:var(--text-2);display:inline-flex;align-items:center;gap:6px;
  transition:color .2s ease,transform .2s ease;
}
.footer-col a::before{content:"›";opacity:0;transition:opacity .2s ease;font-size:15px;}
.footer-col a:hover{color:var(--primary);transform:translateX(2px);}
.footer-col a:hover::before{opacity:1;}
.footer-contact li{font-size:14px;color:var(--text-2);display:flex;gap:10px;margin-bottom:12px;align-items:flex-start;}
.footer-contact i{color:var(--primary);margin-top:5px;font-size:13px;}
.footer-bottom{
  margin-top:52px;padding:20px 0;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}
.footer-bottom a{color:var(--text-3);}
.footer-bottom a:hover{color:var(--primary);}

/* ---------- Responsive ---------- */
@media screen and (max-width:1200px){
  .hero-grid{gap:40px;}
}
@media screen and (max-width:991px){
  .main-nav{display:none;}
  .nav-search{display:none;}
  .nav-toggle{display:flex;}
  .nav-wrap{gap:12px;justify-content:space-between;}
  .hero{min-height:auto;padding:64px 0 72px;}
  .hero-grid{grid-template-columns:1fr;gap:44px;}
  .hero-visual{max-width:620px;}
  .glass-card{left:12px;bottom:-18px;}
  .steps-grid{grid-template-columns:1fr;}
  .tiers{grid-template-columns:repeat(2,minmax(0,1fr));align-items:stretch;}
  .tier-1,.tier-2,.tier-3,.tier-4{min-height:auto;padding-bottom:24px;}
  .news-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .form-grid-layout{grid-template-columns:1fr;gap:32px;}
  .form-side{padding-left:0;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;}
  .strip-inner{gap:20px;}
}
@media screen and (max-width:767px){
  .section{padding:56px 0;}
  .section--tight{padding:48px 0;}
  .section-head h2{font-size:26px;}
  .container{padding:0 20px;}
  .news-grid{grid-template-columns:1fr;}
  .tiers{grid-template-columns:1fr;gap:16px;}
  .tiers-connect{display:none;}
  .tier{min-height:auto;}
  .form-grid{grid-template-columns:1fr;}
  .form-panel{padding:24px;}
  .strip{padding:26px 0;}
  .cd-box{min-width:52px;padding:8px 6px;}
  .cd-num{font-size:20px;}
}
@media screen and (max-width:575px){
  body{font-size:15px;}
  .brand-name{font-size:15px;}
  .hero h1{font-size:29px;}
  .hero-sub{font-size:15px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .trust-item{flex:1 1 100%;}
  .footer-grid{grid-template-columns:1fr;}
  .strip-inner{flex-direction:column;align-items:flex-start;}
  .glass-card{position:static;width:100%;margin-top:16px;}
}

/* roulang page: article */
:root{
  --c-main:#12B8C9;
  --c-main-d:#0A8E9C;
  --c-glow:#5FE3F2;
  --c-accent:#FF6A2B;
  --bg:#070C16;
  --panel:#0F1728;
  --panel-hi:#16223A;
  --light:#F4F7FB;
  --tx:#EAF1FA;
  --tx2:#9FB0C6;
  --tx3:#6B7C93;
  --light-tx:#0E1A2B;
  --light-tx2:#4A5B72;
  --topbar:#F5F8FC;
  --topbar-tx:#0E1A2B;
  --topbar-bd:#E4EAF3;
  --ok:#23C08A;
  --warn:#FFB020;
  --err:#FF5A5A;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --r-card:16px;
  --r-btn:10px;
  --r-badge:6px;
  --r-img:12px;
  --sh-dark:0 8px 30px rgba(0,0,0,.45);
  --sh-light:0 6px 24px rgba(15,30,60,.08);
  --mono:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
  --sans:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--tx);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.8;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.35;letter-spacing:0;}
h1{font-weight:800;}
p{margin:0 0 1em;}
:focus-visible{outline:2px solid var(--c-glow);outline-offset:2px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.04em;color:var(--c-main);
  text-transform:none;
}
.eyebrow::before{content:"";width:22px;height:2px;background:linear-gradient(90deg,var(--c-main),transparent);}
/* ---------- 顶栏 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--topbar);
  color:var(--topbar-tx);
  border-bottom:1px solid var(--topbar-bd);
  box-shadow:0 2px 12px rgba(15,30,60,.06);
}
.header-inner{
  display:flex;align-items:center;gap:24px;
  height:64px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:40px;height:40px;border-radius:8px;
  background:linear-gradient(135deg,var(--c-main),var(--c-main-d));
  display:grid;place-items:center;position:relative;
  box-shadow:0 4px 14px rgba(18,184,201,.32);
}
.brand-mark::before{
  content:"";width:16px;height:16px;border:2px solid #fff;border-radius:3px;
  transform:rotate(45deg);
}
.brand-mark span{
  position:absolute;width:14px;height:2px;background:#fff;
  transform:rotate(-45deg);
}
.brand-name{font-size:17px;font-weight:800;color:var(--topbar-tx);white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:6px;flex:1 1 auto;}
.nav-link{
  position:relative;
  padding:8px 12px;border-radius:8px;
  font-size:15px;color:#33475f;white-space:nowrap;
  transition:color .2s ease,background .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:var(--c-main);border-radius:2px;opacity:0;transition:opacity .2s ease;
}
.nav-link:hover{color:var(--c-main-d);background:rgba(18,184,201,.07);}
.nav-link:hover::after{opacity:.5;}
.nav-link.active{color:var(--c-main-d);font-weight:700;}
.nav-link.active::after{opacity:1;}
.header-tools{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.search-box{
  display:flex;align-items:center;gap:8px;
  height:38px;padding:0 14px;
  background:#fff;border:1px solid var(--topbar-bd);
  border-radius:999px;transition:border-color .2s ease,box-shadow .2s ease;
}
.search-box i{color:var(--tx3);font-size:13px;}
.search-box input{
  border:0;outline:0;background:transparent;width:132px;font-size:14px;color:var(--topbar-tx);
}
.search-box input::placeholder{color:#93a3b8;}
.search-box:focus-within{border-color:var(--c-main);box-shadow:0 0 0 4px rgba(18,184,201,.12);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;
  border:1px solid transparent;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;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(--c-main),var(--c-main-d));
  color:#fff;box-shadow:0 6px 18px rgba(18,184,201,.28);
}
.btn-primary:hover{filter:brightness(1.08);box-shadow:0 10px 26px rgba(18,184,201,.45);transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 12px rgba(18,184,201,.3);}
.btn-outline{
  background:transparent;color:var(--c-glow);border-color:rgba(95,227,242,.55);
}
.btn-outline:hover{background:rgba(18,184,201,.1);border-color:var(--c-glow);}
.btn-accent{
  background:linear-gradient(135deg,var(--c-accent),#e8551a);color:#fff;
  box-shadow:0 6px 18px rgba(255,106,43,.3);
}
.btn-accent:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 10px 26px rgba(255,106,43,.42);}
.btn-ghost{
  background:transparent;color:var(--tx2);padding:0;min-height:0;border:0;
}
.btn-ghost i{transition:transform .2s ease;}
.btn-ghost:hover{color:var(--c-glow);}
.btn-ghost:hover i{transform:translateX(2px);}
.btn-pill{border-radius:999px;min-height:38px;padding:0 20px;font-size:14px;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;
  background:#fff;border:1px solid var(--topbar-bd);color:var(--topbar-tx);
  cursor:pointer;
}
.mobile-drawer{
  display:none;border-top:1px solid var(--topbar-bd);background:#fff;padding:12px 24px 20px;
}
.mobile-drawer.open{display:block;}
.mobile-drawer .drawer-link{
  display:block;padding:12px 4px;border-bottom:1px solid #eef2f8;color:#33475f;font-size:15px;
}
.mobile-drawer .drawer-link.active{color:var(--c-main-d);font-weight:700;}
.mobile-drawer .search-box{width:100%;margin:14px 0 12px;}
.mobile-drawer .search-box input{width:100%;}
.mobile-drawer .btn{width:100%;}
/* ---------- 文章头 ---------- */
.article-hero{
  position:relative;overflow:hidden;
  background:
    linear-gradient(115deg,rgba(7,12,22,.96) 0%,rgba(7,12,22,.86) 52%,rgba(10,142,156,.55) 100%),
    url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  border-bottom:1px solid var(--line);
}
.article-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(115deg,rgba(255,255,255,.05) 0 1px,transparent 1px 14px);
  opacity:.6;
}
.article-hero .container{position:relative;z-index:2;padding-top:40px;padding-bottom:44px;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--tx3);}
.crumb a{color:var(--tx2);transition:color .2s ease;}
.crumb a:hover{color:var(--c-glow);}
.crumb .sep{color:var(--tx3);}
.crumb .now{
  max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
  color:var(--tx2);
}
.article-title{
  margin:18px 0 16px;
  font-size:clamp(28px,3.6vw,44px);
  line-height:1.3;
  color:var(--tx);
  max-width:920px;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;font-size:13px;color:var(--tx2);}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:var(--r-badge);
  font-size:12px;line-height:1.6;font-weight:700;
}
.badge-main{background:rgba(18,184,201,.14);color:var(--c-glow);}
.badge-accent{background:rgba(255,106,43,.16);color:#ffb08a;}
.badge-line{border:1px solid var(--line-strong);color:var(--tx2);background:rgba(255,255,255,.03);}
.meta-item{display:inline-flex;align-items:center;gap:6px;}
.meta-item i{color:var(--c-main);}
/* ---------- 布局 ---------- */
.page-body{padding:56px 0 88px;}
.layout{display:grid;grid-template-columns:minmax(0,1fr) 288px;gap:32px;align-items:start;}
.panel{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-dark);
}
.article-card{padding:32px 36px 36px;}
.article-body{
  max-width:800px;
  color:var(--tx2);
  font-size:16px;
  line-height:1.8;
}
.article-body > *:first-child{margin-top:0;}
.article-body h2{
  margin:44px 0 16px;font-size:clamp(22px,2.4vw,30px);color:var(--tx);
  padding-left:14px;border-left:3px solid var(--c-main);line-height:1.4;
}
.article-body h3{margin:32px 0 12px;font-size:21px;color:var(--tx);}
.article-body h4{margin:24px 0 10px;font-size:17px;color:var(--tx);}
.article-body p{margin:0 0 1em;color:var(--tx2);}
.article-body strong{color:var(--tx);font-weight:700;}
.article-body a{color:var(--c-glow);border-bottom:1px solid rgba(95,227,242,.35);transition:border-color .2s ease,color .2s ease;}
.article-body a:hover{color:#fff;border-color:#fff;}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.4em;}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin:.45em 0;color:var(--tx2);}
.article-body li::marker{color:var(--c-main);}
.article-body blockquote{
  margin:24px 0;padding:18px 22px;
  border-left:3px solid var(--c-main);
  background:rgba(18,184,201,.08);
  border-radius:0 var(--r-img) var(--r-img) 0;
  color:var(--tx);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:var(--r-img);width:100%;aspect-ratio:16/9;object-fit:cover;margin:16px 0;}
.article-body figure{margin:24px 0;}
.article-body figcaption{font-size:13px;color:var(--tx3);text-align:center;margin-top:8px;}
.article-body code{
  font-family:var(--mono);font-size:14px;
  background:rgba(255,255,255,.06);border:1px solid var(--line);
  padding:2px 6px;border-radius:6px;color:var(--c-glow);
}
.article-body pre{
  overflow-x:auto;padding:16px 18px;border-radius:var(--r-img);
  background:#0A1120;border:1px solid var(--line);font-family:var(--mono);font-size:14px;
}
.article-body pre code{background:none;border:0;padding:0;color:var(--tx);}
.article-body .table-scroll{overflow-x:auto;margin:24px 0;border:1px solid var(--line);border-radius:var(--r-img);}
.article-body table{width:100%;border-collapse:collapse;min-width:520px;font-size:14px;}
.article-body thead th{
  background:var(--panel-hi);color:var(--tx);text-align:left;font-weight:700;
  padding:14px 16px;border-bottom:1px solid var(--line);
}
.article-body tbody td{padding:13px 16px;border-bottom:1px solid rgba(255,255,255,.06);color:var(--tx2);}
.article-body tbody tr:last-child td{border-bottom:0;}
.article-body tbody tr:nth-child(odd){background:rgba(255,255,255,.02);}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0;}
.empty-state{
  text-align:center;padding:64px 24px;
}
.empty-state i{font-size:34px;color:var(--c-main);}
.empty-state h2{margin:18px 0 10px;font-size:22px;color:var(--tx);border:0;padding:0;}
.empty-state p{color:var(--tx2);margin-bottom:22px;}
/* ---------- 标签 / 翻页 ---------- */
.tag-block{margin-top:36px;padding-top:26px;border-top:1px solid var(--line);}
.tag-block h3{font-size:14px;color:var(--tx3);font-weight:600;margin-bottom:14px;}
.tag-list{display:flex;flex-wrap:wrap;gap:10px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:7px 14px;border-radius:999px;
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  font-size:13px;color:var(--tx2);
  transition:border-color .2s ease,color .2s ease,background .2s ease,transform .2s ease;
}
.tag:hover{border-color:rgba(18,184,201,.5);color:var(--c-glow);background:rgba(18,184,201,.1);transform:translateY(-1px);}
.pager{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:28px;}
.pager-item{
  display:block;padding:18px 20px;border-radius:var(--r-card);
  background:var(--panel-hi);border:1px solid var(--line);
  transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.pager-item:hover{border-color:rgba(18,184,201,.45);transform:translateY(-2px);box-shadow:var(--sh-dark);}
.pager-item span{display:block;font-size:12px;color:var(--tx3);margin-bottom:6px;}
.pager-item strong{display:block;font-size:15px;color:var(--tx);font-weight:700;}
.pager-item.next{text-align:right;}
/* ---------- 侧栏 ---------- */
.sidebar{display:flex;flex-direction:column;gap:20px;position:sticky;top:88px;}
.side-card{padding:22px 22px 24px;}
.side-card h3{
  font-size:15px;color:var(--tx);margin-bottom:14px;
  display:flex;align-items:center;gap:8px;
}
.side-card h3 i{color:var(--c-main);font-size:13px;}
.side-nav a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:10px 12px;border-radius:10px;font-size:14px;color:var(--tx2);
  transition:background .2s ease,color .2s ease;
}
.side-nav a i{font-size:11px;opacity:.5;transition:transform .2s ease;}
.side-nav a:hover{background:rgba(18,184,201,.1);color:var(--c-glow);}
.side-nav a:hover i{transform:translateX(3px);}
.side-cta{
  background:linear-gradient(150deg,rgba(18,184,201,.16),rgba(15,23,40,.9));
  border:1px solid rgba(18,184,201,.3);
  padding:24px 22px;
}
.side-cta h3{font-size:16px;color:#fff;margin-bottom:10px;}
.side-cta p{font-size:13px;color:var(--tx2);margin-bottom:16px;}
.side-cta .btn{width:100%;min-height:42px;font-size:14px;}
.side-list li{
  padding:12px 0;border-bottom:1px dashed rgba(255,255,255,.09);
}
.side-list li:last-child{border-bottom:0;padding-bottom:0;}
.side-list a{font-size:14px;color:var(--tx2);transition:color .2s ease;}
.side-list a:hover{color:var(--c-glow);}
.side-list .sn{font-family:var(--mono);font-size:12px;color:var(--c-main);margin-right:8px;}
/* ---------- 相关推荐 ---------- */
.related{margin-top:64px;}
.section-head{margin-bottom:26px;}
.section-head h2{font-size:clamp(22px,2.6vw,30px);color:var(--tx);}
.section-head p{color:var(--tx2);font-size:14px;margin:8px 0 0;}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.post-card{
  display:flex;flex-direction:column;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.post-card:hover{transform:translateY(-4px);border-color:rgba(18,184,201,.4);box-shadow:var(--sh-dark);}
.thumb{overflow:hidden;}
.thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .35s ease;}
.post-card:hover .thumb img{transform:scale(1.03);}
.post-body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.post-body h3{font-size:18px;color:var(--tx);line-height:1.5;}
.post-body p{font-size:14px;color:var(--tx2);margin:0;}
.post-foot{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  font-size:13px;color:var(--tx3);
}
.post-foot .more{color:var(--c-glow);display:inline-flex;align-items:center;gap:6px;font-weight:700;}
.post-foot .more i{transition:transform .2s ease;}
.post-card:hover .post-foot .more i{transform:translateX(3px);}
.back-row{margin-top:34px;text-align:center;}
/* ---------- FAQ ---------- */
.faq-section{margin-top:72px;}
.faq-item{
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  border-radius:var(--r-img);
  margin-bottom:12px;overflow:hidden;
  transition:border-color .2s ease,background .2s ease;
  position:relative;
}
.faq-item::before{
  content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;
  background:var(--c-main);border-radius:3px;opacity:0;transition:opacity .2s ease;
}
.faq-item.open{border-color:rgba(18,184,201,.55);background:rgba(18,184,201,.06);}
.faq-item.open::before{opacity:1;}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;background:none;border:0;cursor:pointer;text-align:left;
  font-size:16px;font-weight:700;color:var(--tx);
}
.faq-q i{color:var(--c-main);transition:transform .2s ease;flex:0 0 auto;}
.faq-item.open .faq-q i{transform:rotate(135deg);}
.faq-a{display:none;padding:0 22px 20px;font-size:14px;color:var(--tx2);}
.faq-item.open .faq-a{display:block;}
/* ---------- CTA 条 ---------- */
.cta-band{
  margin-top:72px;
  background:
    linear-gradient(100deg,rgba(18,184,201,.14),rgba(7,12,22,.6)),
    url("/assets/images/backpic/back-3.webp") center/cover no-repeat;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:40px 40px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-band h2{font-size:clamp(20px,2.4vw,28px);color:#fff;margin-bottom:8px;}
.cta-band p{color:var(--tx2);font-size:14px;margin:0;}
.cta-band .actions{display:flex;gap:12px;flex-wrap:wrap;}
/* ---------- 页脚 ---------- */
.site-footer{
  background:#060A12;
  border-top:1px solid var(--line);
  padding:64px 0 28px;
  margin-top:0;
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .fname{font-size:17px;font-weight:800;color:var(--tx);}
.footer-desc{font-size:13px;color:var(--tx3);line-height:1.85;margin:0;max-width:340px;}
.footer-col h4{font-size:14px;color:var(--tx);margin-bottom:16px;font-weight:700;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul a{
  font-size:13px;color:var(--tx2);display:inline-flex;align-items:center;gap:6px;
  transition:color .2s ease,transform .2s ease;
}
.footer-col ul a::before{
  content:"\f105";font-family:"Font Awesome 6 Free";font-weight:900;
  opacity:0;transform:translateX(-4px);transition:opacity .2s ease,transform .2s ease;
  font-size:11px;color:var(--c-main);
}
.footer-col ul a:hover{color:var(--c-glow);transform:translateX(2px);}
.footer-col ul a:hover::before{opacity:1;transform:translateX(0);}
.footer-contact li{
  display:flex;align-items:center;gap:8px;font-size:13px;color:var(--tx2);
}
.footer-contact i{color:var(--c-main);width:16px;font-size:12px;}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:var(--tx3);
}
.footer-bottom a{color:var(--tx3);transition:color .2s ease;}
.footer-bottom a:hover{color:var(--c-glow);}
/* ---------- 响应式 ---------- */
@media screen and (max-width:1199px){
  .search-box input{width:104px;}
}
@media screen and (max-width:991px){
  .main-nav,.header-tools .search-box,.header-tools .header-cta{display:none;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .header-inner{justify-content:space-between;}
  .layout{grid-template-columns:minmax(0,1fr);}
  .sidebar{position:static;flex-direction:row;flex-wrap:wrap;}
  .sidebar > *{flex:1 1 260px;}
  .article-card{padding:26px 24px 30px;}
  .page-body{padding:44px 0 72px;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .cta-band{padding:32px 28px;}
}
@media screen and (max-width:767px){
  .container{padding:0 16px;}
  .article-hero .container{padding-top:28px;padding-bottom:34px;}
  .page-body{padding:36px 0 60px;}
  .card-grid{grid-template-columns:minmax(0,1fr);}
  .pager{grid-template-columns:minmax(0,1fr);}
  .pager-item.next{text-align:left;}
  .related,.faq-section,.cta-band{margin-top:52px;}
  .cta-band{flex-direction:column;align-items:flex-start;}
  .cta-band .actions{width:100%;}
  .cta-band .actions .btn{flex:1 1 auto;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{flex-direction:column;}
  .sidebar{flex-direction:column;}
  .sidebar > *{flex:1 1 auto;width:100%;}
  .article-body h2{font-size:22px;}
}
@media screen and (max-width:520px){
  .brand-name{font-size:15px;}
  .article-title{font-size:26px;}
  .article-card{padding:20px 16px 24px;}
  .btn{min-height:44px;}
}

/* roulang page: category1 */
:root{
  --brand:#12B8C9;
  --brand-dark:#0A8E9C;
  --glow:#5FE3F2;
  --accent:#FF6A2B;
  --bg:#070C16;
  --panel:#0F1728;
  --panel-2:#16223A;
  --light:#F4F7FB;
  --text:#EAF1FA;
  --text-2:#9FB0C6;
  --text-3:#6B7C93;
  --light-text:#0E1A2B;
  --light-text-2:#4A5B72;
  --topbar-bg:#F5F8FC;
  --topbar-text:#0E1A2B;
  --topbar-line:#E4EAF3;
  --ok:#23C08A;
  --warn:#FFB020;
  --err:#FF5A5A;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-img:12px;
  --shadow-dark:0 8px 30px rgba(0,0,0,.45);
  --shadow-light:0 6px 24px rgba(15,30,60,.08);
  --line-dark:1px solid rgba(255,255,255,.08);
  --maxw:1200px;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.8;
  font-weight:400;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.35;color:inherit;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
figure{margin:0;}
::selection{background:rgba(18,184,201,.35);}

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

/* ============ 顶栏导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:200;
  background:var(--topbar-bg);
  border-bottom:1px solid var(--topbar-line);
  box-shadow:0 2px 12px rgba(15,30,60,.06);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:64px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:40px;height:40px;border-radius:8px;
  background:linear-gradient(135deg,var(--brand),var(--brand-dark));
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:0 4px 14px rgba(18,184,201,.35);
  position:relative;
}
.brand-mark::before{
  content:"";position:absolute;width:16px;height:3px;border-radius:2px;background:#fff;top:13px;left:12px;
}
.brand-mark::after{
  content:"";position:absolute;width:10px;height:3px;border-radius:2px;background:rgba(255,255,255,.75);bottom:13px;left:12px;
}
.brand-mark span{
  position:absolute;width:3px;height:10px;border-radius:2px;background:rgba(255,255,255,.9);left:24px;top:15px;
}
.brand-text{
  font-size:17px;
  font-weight:800;
  color:var(--topbar-text);
  letter-spacing:0;
  white-space:nowrap;
}
.main-nav{display:flex;align-items:center;gap:28px;flex:1 1 auto;justify-content:center;}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:64px;
  font-size:15px;
  font-weight:500;
  color:#33455f;
  transition:color .2s ease;
  white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:center;
  transition:transform .22s ease;
}
.nav-link:hover{color:var(--brand-dark);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:var(--brand-dark);font-weight:700;}
.nav-link.active::after{transform:scaleX(1);}
.nav-link:focus-visible{outline:2px solid var(--brand);outline-offset:-4px;}

.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.search-box{
  display:flex;align-items:center;gap:8px;
  height:40px;padding:0 16px;
  border-radius:999px;
  border:1px solid var(--topbar-line);
  background:#fff;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.search-box i{color:#8496ad;font-size:14px;}
.search-box input{
  border:0;outline:0;background:transparent;
  width:132px;height:100%;
  font-size:14px;color:var(--topbar-text);
}
.search-box input::placeholder{color:#9aa9bd;}
.search-box:focus-within{border-color:var(--brand);box-shadow:0 0 0 4px rgba(18,184,201,.12);}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:12px 26px;
  border-radius:var(--radius-btn);
  border:1px solid transparent;
  font-size:16px;font-weight:600;line-height:1;
  cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,filter .18s ease,border-color .18s ease;
}
.btn-sm{min-height:40px;padding:10px 20px;font-size:15px;border-radius:999px;}
.btn-primary{
  background:linear-gradient(135deg,var(--brand),var(--brand-dark));
  color:#fff;
  box-shadow:0 6px 20px rgba(18,184,201,.32);
}
.btn-primary:hover{
  filter:brightness(1.08);
  transform:translateY(-1px);
  box-shadow:0 12px 30px rgba(95,227,242,.42);
  color:#fff;
}
.btn-primary:active{transform:translateY(0);filter:brightness(.95);}
.btn-primary:focus-visible{outline:2px solid var(--glow);outline-offset:2px;}
.btn-accent{
  background:linear-gradient(135deg,#FF8A54,var(--accent));
  color:#fff;
  box-shadow:0 8px 24px rgba(255,106,43,.32);
}
.btn-accent:hover{filter:brightness(1.06);transform:translateY(-1px);color:#fff;}
.btn-accent:active{transform:translateY(0);}
.btn-accent:focus-visible{outline:2px solid #FFC4A6;outline-offset:2px;}
.btn-outline{
  background:transparent;
  border-color:rgba(18,184,201,.7);
  color:var(--glow);
}
.btn-outline:hover{background:rgba(18,184,201,.12);border-color:var(--glow);color:#fff;}
.btn-outline:active{transform:translateY(1px);}
.btn-outline:focus-visible{outline:2px solid var(--glow);outline-offset:2px;}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--text-2);font-weight:600;font-size:15px;
  padding:6px 0;transition:color .2s ease;
}
.btn-link i{transition:transform .2s ease;}
.btn-link:hover{color:var(--glow);}
.btn-link:hover i{transform:translateX(3px);}
.btn-link:focus-visible{outline:2px solid var(--glow);outline-offset:3px;border-radius:6px;}

.nav-toggle{
  display:none;
  width:44px;height:40px;
  border-radius:10px;
  border:1px solid var(--topbar-line);
  background:#fff;
  color:var(--topbar-text);
  font-size:17px;
  cursor:pointer;
  align-items:center;justify-content:center;
  transition:border-color .2s ease,color .2s ease;
}
.nav-toggle:hover{border-color:var(--brand);color:var(--brand-dark);}
.nav-toggle:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}

.mobile-drawer{display:none;background:#fff;border-top:1px solid var(--topbar-line);padding:8px 24px 24px;}
.mobile-drawer.open{display:block;}
.mobile-drawer .drawer-link{
  display:block;
  padding:14px 0;
  font-size:16px;
  color:#33455f;
  border-bottom:1px solid #EEF3F9;
}
.mobile-drawer .drawer-link.active{color:var(--brand-dark);font-weight:700;}
.mobile-drawer .drawer-search{
  display:flex;align-items:center;gap:10px;
  margin:16px 0 12px;height:46px;padding:0 16px;
  border-radius:999px;border:1px solid var(--topbar-line);background:#fff;
}
.mobile-drawer .drawer-search i{color:#8496ad;}
.mobile-drawer .drawer-search input{border:0;outline:0;width:100%;background:transparent;font-size:15px;color:var(--topbar-text);}
.mobile-drawer .btn{width:100%;border-radius:10px;}

/* ============ Hero ============ */
.page-hero{
  position:relative;
  overflow:hidden;
  background:var(--bg);
  padding:56px 0 64px;
  min-height:336px;
  display:flex;
  align-items:center;
}
.page-hero::before{
  content:"";
  position:absolute;inset:0;
  background-image:
    linear-gradient(90deg,rgba(7,12,22,.95) 0%,rgba(7,12,22,.8) 46%,rgba(7,12,22,.58) 100%),
    url("/assets/images/backpic/back-1.webp");
  background-size:cover;
  background-position:center right;
}
.page-hero::after{
  content:"";
  position:absolute;inset:0;
  background-image:repeating-linear-gradient(115deg,rgba(255,255,255,.05) 0 1px,transparent 1px 16px);
  opacity:.55;
  pointer-events:none;
}
.hero-glow{
  position:absolute;right:-120px;bottom:-160px;
  width:520px;height:520px;
  background:radial-gradient(circle,rgba(18,184,201,.22),transparent 66%);
  z-index:1;
  pointer-events:none;
}
.hero-inner{position:relative;z-index:2;max-width:820px;}
.breadcrumbs{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:13px;color:var(--text-3);
  margin-bottom:18px;
}
.breadcrumbs a{color:var(--text-2);transition:color .2s ease;}
.breadcrumbs a:hover{color:var(--glow);}
.breadcrumbs .sep{color:rgba(255,255,255,.25);}
.breadcrumbs .current{color:var(--text-2);}
.page-hero h1{
  font-size:clamp(28px,3.6vw,44px);
  font-weight:800;
  line-height:1.28;
  color:#fff;
  margin-bottom:18px;
}
.hero-sub{
  font-size:16px;
  color:var(--text-2);
  max-width:680px;
  margin-bottom:28px;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;align-items:center;}

/* ============ 通用区块 ============ */
.section{padding:80px 0;}
.section-dark{background:var(--bg);}
.section-panel{background:var(--panel);}
.section-light{background:var(--light);color:var(--light-text);}
.section-tight{padding:64px 0;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;
  letter-spacing:.04em;
  color:var(--brand);
  margin-bottom:14px;
}
.eyebrow::before{
  content:"";width:22px;height:2px;border-radius:2px;background:var(--brand);
}
.section-light .eyebrow{color:var(--brand-dark);}
.section-light .eyebrow::before{background:var(--brand-dark);}
.section-title{
  font-size:clamp(24px,2.6vw,34px);
  font-weight:800;
  line-height:1.35;
  margin-bottom:16px;
}
.section-head{max-width:760px;margin-bottom:48px;}
.section-sub{color:var(--text-2);font-size:16px;}
.section-light .section-sub{color:var(--light-text-2);}

/* ============ 图文并列主区 ============ */
.split-grid{align-items:start;}
.split-text{padding-right:8px;}
.lead-text{color:var(--text-2);margin-bottom:32px;}
.num-list{display:flex;flex-direction:column;gap:20px;}
.num-list > li{
  display:flex;
  gap:18px;
  padding:20px 22px;
  background:var(--panel);
  border:var(--line-dark);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-dark);
  transition:border-color .22s ease,transform .22s ease,background-color .22s ease;
}
.num-list > li:hover{border-color:rgba(18,184,201,.45);transform:translateY(-2px);background:var(--panel-2);}
.num-list .num{
  flex:0 0 40px;
  font-family:ui-monospace,SFMono-Regular,"SF Mono",Consolas,monospace;
  font-size:20px;
  font-weight:700;
  color:var(--glow);
  line-height:1.5;
}
.num-list h3{font-size:18px;margin-bottom:6px;color:#fff;}
.num-list p{font-size:15px;color:var(--text-2);margin:0;}

.side-col{display:flex;flex-direction:column;gap:24px;}
.side-figure{
  border-radius:var(--radius-img);
  overflow:hidden;
  border:var(--line-dark);
  box-shadow:var(--shadow-dark);
  position:relative;
}
.side-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.side-figure figcaption{
  position:absolute;left:16px;bottom:14px;
  font-size:12px;color:rgba(255,255,255,.85);
  background:rgba(7,12,22,.6);
  padding:4px 10px;border-radius:6px;
  backdrop-filter:blur(6px);
}
.glass-card{
  background:rgba(22,34,58,.66);
  border:1px solid rgba(255,255,255,.1);
  border-radius:var(--radius-card);
  padding:26px 24px;
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow-dark);
}
.glass-card h3{
  font-size:17px;
  color:#fff;
  margin-bottom:16px;
  padding-bottom:14px;
  border-bottom:1px dashed rgba(255,255,255,.14);
}
.check-list{display:flex;flex-direction:column;gap:14px;}
.check-list li{
  display:flex;align-items:flex-start;gap:10px;
  font-size:14px;color:var(--text-2);
}
.check-list li strong{display:block;color:var(--text);font-weight:600;font-size:15px;}
.dot{
  flex:0 0 8px;width:8px;height:8px;border-radius:50%;
  margin-top:9px;
  background:var(--ok);
  box-shadow:0 0 0 4px rgba(35,192,138,.14);
}
.dot.warn{background:var(--warn);box-shadow:0 0 0 4px rgba(255,176,32,.14);}

/* ============ 登录方式一览 ============ */
.method-list{display:flex;flex-direction:column;gap:14px;}
.method-row{
  display:flex;align-items:center;gap:22px;
  padding:22px 26px;
  background:var(--panel);
  border:var(--line-dark);
  border-radius:var(--radius-card);
  transition:border-color .22s ease,transform .22s ease,background-image .22s ease;
}
.method-row:hover{
  border-color:rgba(18,184,201,.42);
  transform:translateX(4px);
  background-image:linear-gradient(90deg,rgba(18,184,201,.1),transparent 60%);
}
.method-no{
  flex:0 0 52px;
  font-family:ui-monospace,SFMono-Regular,Consolas,monospace;
  font-size:24px;font-weight:700;
  color:rgba(95,227,242,.7);
  line-height:1.2;
}
.method-main{flex:1 1 auto;}
.method-main h3{font-size:19px;color:#fff;margin-bottom:6px;}
.method-main p{font-size:15px;color:var(--text-2);margin:0;}
.tag{
  flex:0 0 auto;
  font-size:12px;
  padding:5px 12px;
  border-radius:6px;
  background:rgba(18,184,201,.14);
  color:var(--glow);
  border:1px solid rgba(18,184,201,.3);
  white-space:nowrap;
}
.tag-accent{
  background:rgba(255,106,43,.14);
  color:#FFB894;
  border-color:rgba(255,106,43,.35);
}

/* ============ 提示对照（图左文右） ============ */
.trouble-grid{align-items:center;}
.trouble-figure{
  border-radius:var(--radius-img);
  overflow:hidden;
  border:var(--line-dark);
  box-shadow:var(--shadow-dark);
}
.trouble-figure img{width:100%;aspect-ratio:16/11;object-fit:cover;}
.plain-list{display:flex;flex-direction:column;gap:16px;}
.plain-list li{
  position:relative;
  padding-left:20px;
  font-size:15px;
  color:var(--text-2);
}
.plain-list li::before{
  content:"";
  position:absolute;left:0;top:11px;
  width:8px;height:2px;border-radius:2px;
  background:var(--brand);
}
.plain-list li strong{color:#fff;font-weight:600;}

/* ============ 环境建议（浅色） ============ */
.advice-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:20px;
}
.advice-card{
  background:#fff;
  border:1px solid #E3EAF4;
  border-radius:var(--radius-card);
  padding:26px 26px 24px;
  box-shadow:var(--shadow-light);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.advice-card:hover{transform:translateY(-4px);border-color:rgba(18,184,201,.5);box-shadow:0 14px 34px rgba(15,30,60,.12);}
.advice-icon{
  width:44px;height:44px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(18,184,201,.12);
  color:var(--brand-dark);
  font-size:18px;
  margin-bottom:16px;
}
.advice-card h3{font-size:19px;color:var(--light-text);margin-bottom:8px;}
.advice-card p{font-size:15px;color:var(--light-text-2);margin:0;}

/* ============ CTA 横幅 ============ */
.cta-banner{
  position:relative;
  overflow:hidden;
  background:linear-gradient(120deg,#0B1524 0%,#0F2233 55%,#0A2A34 100%);
  border-top:var(--line-dark);
  border-bottom:var(--line-dark);
  padding:64px 0;
}
.cta-banner::after{
  content:"";
  position:absolute;inset:0;
  background-image:repeating-linear-gradient(115deg,rgba(255,255,255,.04) 0 1px,transparent 1px 18px);
  pointer-events:none;
}
.cta-inner{
  position:relative;z-index:2;
  display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
}
.cta-copy{max-width:640px;}
.cta-copy h2{font-size:clamp(22px,2.4vw,30px);color:#fff;margin-bottom:12px;}
.cta-copy p{color:var(--text-2);font-size:15px;margin:0;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center;}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px;}
.faq-item{
  background:rgba(22,34,58,.55);
  border:1px solid rgba(255,255,255,.1);
  border-radius:12px;
  overflow:hidden;
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  transition:border-color .22s ease,background-color .22s ease;
  position:relative;
}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:var(--brand);opacity:0;transition:opacity .22s ease;
}
.faq-item.open{border-color:rgba(18,184,201,.55);background:rgba(22,34,58,.78);}
.faq-item.open::before{opacity:1;}
.faq-q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;
  background:transparent;border:0;
  text-align:left;
  font-size:17px;font-weight:600;color:#fff;
  cursor:pointer;
  transition:color .2s ease;
}
.faq-q:hover{color:var(--glow);}
.faq-q:focus-visible{outline:2px solid var(--brand);outline-offset:-4px;border-radius:12px;}
.faq-icon{position:relative;flex:0 0 16px;width:16px;height:16px;}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--brand);border-radius:2px;transition:transform .2s ease,opacity .2s ease;
}
.faq-icon::before{top:7px;left:0;width:16px;height:2px;}
.faq-icon::after{left:7px;top:0;width:2px;height:16px;}
.faq-item.open .faq-icon::after{transform:rotate(90deg);opacity:0;}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .3s ease;
}
.faq-item.open .faq-a{max-height:420px;}
.faq-a p{
  padding:0 24px 22px 24px;
  font-size:15px;
  color:var(--text-2);
  margin:0;
}

/* ============ 页脚 ============ */
.site-footer{
  background:#060A12;
  border-top:1px solid rgba(255,255,255,.08);
  padding:64px 0 28px;
  color:var(--text-2);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:40px;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{width:36px;height:36px;}
.footer-brand .fname{font-size:17px;font-weight:800;color:#fff;line-height:1.4;}
.footer-desc{font-size:14px;color:var(--text-3);line-height:1.9;margin:0;max-width:340px;}
.footer-col h4{
  font-size:15px;
  color:#fff;
  font-weight:700;
  margin-bottom:18px;
}
.footer-col ul{display:flex;flex-direction:column;gap:12px;}
.footer-col ul a{
  position:relative;
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;color:var(--text-2);
  transition:color .2s ease,transform .2s ease;
}
.footer-col ul a::before{
  content:"›";
  opacity:0;
  transform:translateX(-4px);
  transition:opacity .2s ease,transform .2s ease;
  color:var(--brand);
}
.footer-col ul a:hover{color:var(--glow);transform:translateX(2px);}
.footer-col ul a:hover::before{opacity:1;transform:translateX(0);}
.footer-contact li{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--text-2);}
.footer-contact i{color:var(--brand);font-size:14px;}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding-top:24px;
  font-size:13px;
  color:var(--text-3);
}
.footer-bottom a{color:var(--text-2);transition:color .2s ease;}
.footer-bottom a:hover{color:var(--glow);}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .container{padding:0 20px;}
}
@media (max-width:991px){
  .main-nav{display:none;}
  .search-box{display:none;}
  .nav-cta{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-inner{height:56px;}
  .brand-text{font-size:16px;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:36px;}
  .page-hero{padding:44px 0 52px;min-height:0;}
  .split-text{padding-right:0;}
  .side-col{margin-top:36px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .footer-desc{max-width:none;}
}
@media (max-width:767px){
  .advice-grid{grid-template-columns:1fr;}
  .method-row{flex-wrap:wrap;gap:14px;padding:20px;}
  .method-no{flex:0 0 40px;font-size:20px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
}
@media (max-width:575px){
  body{font-size:15px;}
  .container{padding:0 16px;}
  .section{padding:44px 0;}
  .page-hero{padding:36px 0 44px;}
  .page-hero h1{font-size:26px;}
  .hero-cta .btn{width:100%;}
  .num-list > li{padding:18px 16px;gap:14px;}
  .num-list .num{flex:0 0 32px;font-size:17px;}
  .faq-q{font-size:16px;padding:18px;}
  .faq-a p{padding:0 18px 18px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
}
@media (min-width:992px){
  .mobile-drawer{display:none !important;}
}

/* roulang page: category2 */
:root{
  --brand:#12B8C9;
  --brand-dark:#0A8E9C;
  --glow:#5FE3F2;
  --accent:#FF6A2B;
  --bg:#070C16;
  --panel:#0F1728;
  --panel-hi:#16223A;
  --light:#F4F7FB;
  --text:#EAF1FA;
  --muted:#9FB0C6;
  --dim:#6B7C93;
  --ink:#0E1A2B;
  --ink-soft:#4A5B72;
  --bar:#F5F8FC;
  --bar-line:#E4EAF3;
  --ok:#23C08A;
  --warn:#FFB020;
  --err:#FF5A5A;
  --line:rgba(255,255,255,.08);
  --line-2:rgba(255,255,255,.16);
  --r-card:16px;
  --r-btn:10px;
  --r-badge:6px;
  --r-img:12px;
  --r-pill:999px;
  --sh-dark:0 8px 30px rgba(0,0,0,.45);
  --sh-light:0 6px 24px rgba(15,30,60,.08);
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;
  --mono:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:0;font-style:normal;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;}
::selection{background:rgba(18,184,201,.35);}

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

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;line-height:1;cursor:pointer;
  border:1px solid transparent;white-space:nowrap;
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease,filter .2s ease,border-color .2s ease;
}
.btn:focus-visible{outline:2px solid var(--glow);outline-offset:2px;}
.btn-primary{
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-dark) 100%);
  color:#04161C;
  color:#ffffff;
  box-shadow:0 6px 18px rgba(18,184,201,.28);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 10px 30px rgba(18,184,201,.48);}
.btn-primary:active{transform:translateY(0);filter:brightness(.95);}
.btn-outline{
  background:transparent;border-color:rgba(18,184,201,.55);color:var(--brand);
}
.btn-outline:hover{background:rgba(18,184,201,.12);border-color:var(--brand);transform:translateY(-1px);}
.btn-outline:active{transform:translateY(0);background:rgba(18,184,201,.2);}
.btn-accent{
  background:linear-gradient(135deg,#FF8A4D 0%,var(--accent) 100%);
  color:#1A0A02;box-shadow:0 6px 20px rgba(255,106,43,.32);
}
.btn-accent:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 10px 28px rgba(255,106,43,.46);}
.btn-pill{border-radius:var(--r-pill);min-height:40px;padding:0 20px;font-size:14.5px;}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;color:var(--muted);font-weight:600;font-size:14.5px;
  background:none;border:0;padding:0;cursor:pointer;transition:color .2s ease;
}
.btn-link i{transition:transform .2s ease;}
.btn-link:hover{color:var(--glow);}
.btn-link:hover i{transform:translateX(3px);}

/* ---------- 顶栏 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:var(--bar);
  border-bottom:1px solid var(--bar-line);
  box-shadow:0 2px 12px rgba(15,30,60,.06);
}
.header-inner{display:flex;align-items:center;gap:20px;height:64px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:40px;height:40px;border-radius:8px;flex:0 0 40px;
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-dark) 100%);
  display:grid;place-items:center;position:relative;overflow:hidden;
  box-shadow:0 4px 14px rgba(18,184,201,.35);
}
.brand-mark::before{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(115deg,rgba(255,255,255,.22) 0 1px,transparent 1px 7px);
}
.brand-mark span{width:14px;height:14px;border:2.5px solid #fff;border-radius:3px;transform:rotate(45deg);}
.brand-text{font-size:17px;font-weight:800;color:var(--ink);letter-spacing:.2px;}

.main-nav{display:flex;align-items:center;gap:2px;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:64px;padding:0 14px;
  font-size:15px;color:#34465E;transition:color .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;border-radius:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:center;transition:transform .22s ease;
}
.nav-link:hover{color:var(--brand-dark);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:var(--brand-dark);font-weight:700;}
.nav-link.active::after{transform:scaleX(1);}
.nav-link:focus-visible{outline:2px solid var(--brand);outline-offset:-4px;border-radius:6px;}

.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
.nav-search{
  display:flex;align-items:center;gap:8px;height:40px;width:206px;padding:0 14px;
  background:#fff;border:1px solid var(--bar-line);border-radius:var(--r-pill);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.nav-search i{font-size:13px;color:#8497AE;}
.nav-search input{border:0;outline:0;background:transparent;width:100%;font-size:14px;color:var(--ink);}
.nav-search input::placeholder{color:#9AAABF;}
.nav-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 4px rgba(18,184,201,.12);}

.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;background:#fff;
  border:1px solid var(--bar-line);cursor:pointer;
  align-items:center;justify-content:center;flex-direction:column;gap:4px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);transition:background-color .2s;}
.nav-toggle:hover{border-color:var(--brand);box-shadow:0 0 0 4px rgba(18,184,201,.1);}
.nav-toggle:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}

.mobile-drawer{display:none;background:#fff;border-top:1px solid var(--bar-line);padding:8px 24px 22px;}
.mobile-drawer.open{display:block;}
.mobile-drawer a.drawer-link{
  display:block;padding:14px 2px;font-size:16px;color:var(--ink);
  border-bottom:1px solid var(--bar-line);
}
.mobile-drawer a.drawer-link.active{color:var(--brand-dark);font-weight:700;}
.mobile-drawer .drawer-search{
  display:flex;align-items:center;gap:8px;height:46px;margin-top:18px;padding:0 16px;
  background:#F7FAFD;border:1px solid var(--bar-line);border-radius:var(--r-pill);
}
.mobile-drawer .drawer-search i{color:#8497AE;font-size:14px;}
.mobile-drawer .drawer-search input{border:0;outline:0;background:transparent;width:100%;font-size:15px;color:var(--ink);}
.mobile-drawer .btn{width:100%;margin-top:14px;}

/* ---------- 矮版 Hero（左对齐窄栏 + 右侧细斜线） ---------- */
.page-hero{
  position:relative;overflow:hidden;
  min-height:340px;display:flex;align-items:center;
  padding:48px 0 52px;
  background-color:#070C16;
  background-image:
    linear-gradient(100deg,rgba(7,12,22,.95) 0%,rgba(8,14,26,.88) 46%,rgba(10,22,38,.70) 100%),
    url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center right;
}
.page-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(115deg,rgba(255,255,255,.045) 0 1px,transparent 1px 20px);
}
.page-hero::after{
  content:"";position:absolute;right:-140px;bottom:-180px;width:460px;height:460px;pointer-events:none;
  background:radial-gradient(circle,rgba(18,184,201,.24) 0%,rgba(18,184,201,0) 70%);
}
.hero-deco{
  position:absolute;top:0;right:0;bottom:0;width:40%;pointer-events:none;
  background-image:repeating-linear-gradient(112deg,rgba(18,184,201,.22) 0 1px,transparent 1px 22px);
  -webkit-mask-image:linear-gradient(to left,rgba(0,0,0,.9),transparent);
  mask-image:linear-gradient(to left,rgba(0,0,0,.9),transparent);
  opacity:.65;
}
.hero-inner{position:relative;z-index:2;width:100%;}
.hero-col{max-width:660px;}
.breadcrumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13px;color:var(--dim);margin-bottom:16px;
}
.breadcrumb a{color:var(--muted);transition:color .2s ease;}
.breadcrumb a:hover{color:var(--glow);}
.breadcrumb .sep{color:#3B4A60;}
.breadcrumb .current{color:var(--text);font-weight:600;}
.page-hero h1{
  font-size:clamp(27px,3.5vw,44px);line-height:1.28;color:#fff;margin-bottom:16px;
  text-shadow:0 4px 22px rgba(0,0,0,.45);
}
.hero-sub{color:var(--muted);font-size:16px;max-width:600px;margin-bottom:26px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ---------- 锚点分段条 ---------- */
.anchor-bar{
  position:sticky;top:64px;z-index:60;
  background:rgba(9,14,26,.92);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.anchor-inner{display:flex;gap:8px;padding:12px 0;overflow-x:auto;scrollbar-width:none;}
.anchor-inner::-webkit-scrollbar{display:none;}
.anchor-link{
  flex:0 0 auto;padding:9px 18px;border-radius:var(--r-pill);
  font-size:14px;color:var(--muted);border:1px solid transparent;
  transition:color .2s ease,background-color .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.anchor-link:hover{color:var(--text);background:rgba(255,255,255,.06);}
.anchor-link.active{
  color:#EAF1FA;background:rgba(18,184,201,.16);border-color:rgba(18,184,201,.5);
  box-shadow:0 0 0 3px rgba(18,184,201,.08);
}
.anchor-link:focus-visible{outline:2px solid var(--glow);outline-offset:2px;}

/* ---------- 板块 ---------- */
.section{padding:88px 0;}
.section--tight{padding:72px 0;}
.section--light{background:var(--light);color:var(--ink);}
section[id]{scroll-margin-top:132px;}

.section-head{max-width:780px;margin-bottom:40px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-family:var(--mono);
  font-size:12.5px;letter-spacing:1px;color:var(--brand);margin-bottom:12px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--brand);border-radius:2px;display:inline-block;}
.section-head h2{font-size:clamp(24px,2.9vw,34px);line-height:1.35;margin-bottom:14px;}
.section-head p{color:var(--muted);font-size:16px;max-width:720px;}
.section--light .section-head p{color:var(--ink-soft);}

/* ---------- 图文两列块 ---------- */
.feature-row{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;}
.feature-row + .feature-row{margin-top:76px;}
.feature-row.reverse .feature-media{order:2;}
.feature-media{
  position:relative;border-radius:var(--r-img);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--sh-dark);
  background:var(--panel);
}
.feature-media::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,rgba(7,12,22,0) 45%,rgba(7,12,22,.55) 100%);
}
.feature-media img{width:100%;aspect-ratio:16/11;object-fit:cover;transition:transform .5s ease;}
.feature-media:hover img{transform:scale(1.03);}
.media-tag{
  position:absolute;left:16px;bottom:16px;z-index:2;
  display:flex;align-items:center;gap:8px;
  padding:9px 14px;border-radius:12px;
  background:rgba(9,14,26,.62);border:1px solid rgba(255,255,255,.14);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  font-size:13px;color:var(--text);
}
.media-tag i{color:var(--glow);font-size:12px;}
.media-tag .mono{font-family:var(--mono);color:var(--glow);font-weight:700;}

.feature-text h2{font-size:clamp(22px,2.4vw,30px);line-height:1.38;margin-bottom:14px;}
.feature-text > p{color:var(--muted);font-size:15.5px;}
.badge-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 11px;border-radius:var(--r-badge);
  font-size:12.5px;font-weight:600;line-height:1.5;
  background:rgba(18,184,201,.14);color:var(--glow);
  border:1px solid rgba(18,184,201,.24);
}
.badge-accent{background:rgba(255,106,43,.16);color:#FFB08A;border-color:rgba(255,106,43,.3);}
.badge-muted{background:rgba(255,255,255,.06);color:var(--muted);border-color:var(--line-2);}

.num-list{counter-reset:num;list-style:none;padding:0;margin:24px 0 0;display:grid;gap:16px;}
.num-list li{
  position:relative;padding-left:58px;color:var(--muted);font-size:15px;line-height:1.75;
}
.num-list li::before{
  counter-increment:num;content:counter(num,decimal-leading-zero);
  position:absolute;left:0;top:2px;
  width:40px;height:28px;display:grid;place-items:center;
  font-family:var(--mono);font-size:13.5px;font-weight:700;letter-spacing:.5px;
  color:var(--glow);background:rgba(18,184,201,.1);
  border:1px solid rgba(18,184,201,.3);border-radius:8px;
}
.num-list li strong{color:var(--text);font-weight:600;}

/* ---------- 说明表格 ---------- */
.table-wrap{
  border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;background:var(--panel);
}
.table-scroll{overflow-x:auto;}
.spec-table{width:100%;min-width:760px;border-collapse:collapse;}
.spec-table th{
  background:var(--panel-hi);text-align:left;padding:16px 20px;
  font-size:14px;font-weight:700;color:var(--text);
  border-bottom:1px solid var(--line);white-space:nowrap;
}
.spec-table td{
  padding:18px 20px;font-size:14.5px;color:var(--muted);
  border-bottom:1px solid rgba(255,255,255,.06);vertical-align:top;line-height:1.7;
}
.spec-table td:first-child{color:var(--text);font-weight:600;}
.spec-table tbody tr:nth-child(even){background:rgba(255,255,255,.02);}
.spec-table tbody tr:hover{background:rgba(18,184,201,.07);}
.spec-table tbody tr:last-child td{border-bottom:0;}
.time-tag{font-family:var(--mono);font-size:13.5px;color:var(--ok);}
.section--light .table-wrap{background:#fff;border-color:#E1E8F2;box-shadow:var(--sh-light);}
.section--light .spec-table th{background:#EAF0F8;color:var(--ink);border-bottom-color:#DCE5F0;}
.section--light .spec-table td{color:var(--ink-soft);border-bottom-color:#E8EEF6;}
.section--light .spec-table td:first-child{color:var(--ink);}
.section--light .spec-table tbody tr:nth-child(even){background:#F7FAFD;}
.section--light .spec-table tbody tr:hover{background:#EDF6F8;}
.section--light .time-tag{color:#0E8F6A;}

/* ---------- FAQ ---------- */
.faq-list{max-width:900px;}
.faq-item{
  position:relative;margin-bottom:12px;border-radius:12px;overflow:hidden;
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  transition:border-color .2s ease,background-color .2s ease;
}
.faq-item:hover{border-color:rgba(255,255,255,.22);}
.faq-item.open{border-color:rgba(18,184,201,.55);background:rgba(18,184,201,.06);}
.faq-item.open::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;
  background:var(--brand);border-radius:0 3px 3px 0;
}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;background:transparent;border:0;text-align:left;cursor:pointer;
  font-size:16.5px;font-weight:600;color:var(--text);line-height:1.6;
  transition:color .2s ease;
}
.faq-q:hover{color:var(--glow);}
.faq-q:focus-visible{outline:2px solid var(--glow);outline-offset:-4px;}
.faq-item.open .faq-q{color:var(--glow);}
.faq-icon{position:relative;flex:0 0 18px;width:18px;height:18px;}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--brand);border-radius:2px;
  transition:transform .2s ease,opacity .2s ease;
}
.faq-icon::before{left:0;top:8px;width:18px;height:2px;}
.faq-icon::after{left:8px;top:0;width:2px;height:18px;}
.faq-item.open .faq-icon::after{transform:rotate(90deg);opacity:0;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-a-inner{padding:0 22px 22px;color:var(--muted);font-size:15px;line-height:1.85;}

/* ---------- CTA + 表单 ---------- */
.cta-panel{
  display:grid;grid-template-columns:1fr 1fr;gap:48px;
  padding:44px;border-radius:20px;
  background:
    radial-gradient(120% 140% at 0% 0%,rgba(18,184,201,.14) 0%,rgba(7,12,22,0) 58%),
    var(--panel);
  border:1px solid var(--line);
  box-shadow:var(--sh-dark);
}
.cta-copy h2{font-size:clamp(22px,2.4vw,30px);line-height:1.38;margin-bottom:14px;}
.cta-copy p{color:var(--muted);font-size:15.5px;}
.cta-points{list-style:none;margin:24px 0 0;display:grid;gap:12px;}
.cta-points li{display:flex;align-items:flex-start;gap:10px;font-size:14.5px;color:var(--muted);}
.cta-points i{color:var(--brand);font-size:13px;margin-top:6px;}
.cta-contact{
  margin-top:26px;padding:16px 18px;border-radius:12px;
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  font-size:14px;color:var(--muted);
}
.cta-contact span{color:var(--glow);font-family:var(--mono);}

.form-panel{
  background:rgba(255,255,255,.04);
  border:1px solid var(--line-2);
  border-radius:var(--r-card);
  padding:32px;
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
}
.form-panel h3{font-size:20px;margin-bottom:8px;}
.form-panel .form-note{font-size:13.5px;color:var(--dim);margin-bottom:22px;}
.field{margin-bottom:18px;}
.field label{display:block;font-size:13px;font-weight:600;color:var(--muted);margin-bottom:8px;}
.field input,.field select,.field textarea{
  width:100%;height:46px;padding:0 14px;
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.12);
  border-radius:10px;color:var(--text);outline:none;
  transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.field textarea{height:auto;min-height:112px;padding:12px 14px;line-height:1.7;resize:vertical;}
.field select{appearance:none;-webkit-appearance:none;background-image:linear-gradient(45deg,transparent 50%,#8497AE 50%),linear-gradient(135deg,#8497AE 50%,transparent 50%);background-position:calc(100% - 20px) 20px,calc(100% - 14px) 20px;background-size:6px 6px,6px 6px;background-repeat:no-repeat;}
.field select option{color:#0E1A2B;background:#ffffff;}
.field input::placeholder,.field textarea::placeholder{color:rgba(159,176,198,.55);}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--brand);
  box-shadow:0 0 0 4px rgba(18,184,201,.14);
  background:rgba(18,184,201,.05);
}
.field.error input,.field.error select,.field.error textarea{border-color:#FF6A2B;box-shadow:0 0 0 3px rgba(255,106,43,.14);}
.field .err-text{display:none;font-size:12.5px;color:#FF9A6B;margin-top:6px;}
.field.error .err-text{display:block;}
.form-panel .btn{width:100%;}
.form-status{margin-top:14px;font-size:13.5px;color:var(--ok);min-height:20px;}

/* ---------- 页脚 ---------- */
.site-footer{background:#060A12;border-top:1px solid var(--line);padding:64px 0 0;color:var(--muted);}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:40px;padding-bottom:44px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.fname{font-size:17px;font-weight:800;color:var(--text);}
.footer-desc{font-size:14px;line-height:1.8;color:var(--dim);max-width:330px;}
.footer-col h4{font-size:15px;color:var(--text);margin-bottom:16px;}
.footer-col ul{list-style:none;display:grid;gap:12px;}
.footer-col a{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--muted);transition:color .2s ease;}
.footer-col a::before{
  content:"›";color:var(--brand);font-weight:700;opacity:0;transform:translateX(-4px);
  transition:opacity .2s ease,transform .2s ease;
}
.footer-col a:hover{color:var(--glow);}
.footer-col a:hover::before{opacity:1;transform:translateX(0);}
.footer-col a:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:4px;}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--muted);}
.footer-contact i{color:var(--brand);font-size:13px;margin-top:6px;}
.footer-bottom{
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  border-top:1px solid var(--line);padding:20px 0 24px;
  font-size:13px;color:var(--dim);
}
.footer-bottom a{color:var(--muted);transition:color .2s ease;}
.footer-bottom a:hover{color:var(--glow);}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .container{padding:0 20px;}
  .nav-search{width:170px;}
}
@media (max-width:991px){
  .header-inner{height:56px;gap:12px;}
  .main-nav{display:none;}
  .nav-search{display:none;}
  .nav-toggle{display:flex;}
  .brand-text{font-size:16px;}
  .anchor-bar{top:56px;}
  .hero-deco{width:52%;opacity:.4;}
  .section{padding:56px 0;}
  .section--tight{padding:48px 0;}
  .feature-row{grid-template-columns:1fr;gap:28px;}
  .feature-row + .feature-row{margin-top:56px;}
  .feature-row.reverse .feature-media{order:0;}
  .cta-panel{grid-template-columns:1fr;gap:32px;padding:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  section[id]{scroll-margin-top:120px;}
}
@media (max-width:575px){
  .container{padding:0 16px;}
  .page-hero{min-height:auto;padding:36px 0 44px;}
  .hero-sub{font-size:15px;}
  .hero-actions{gap:10px;}
  .hero-actions .btn{width:100%;}
  .section{padding:44px 0;}
  .section-head{margin-bottom:28px;}
  .num-list li{padding-left:52px;}
  .num-list li::before{width:36px;height:26px;font-size:12.5px;}
  .form-panel{padding:22px;}
  .cta-panel{padding:22px;border-radius:16px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .faq-q{font-size:15.5px;padding:18px;}
  .faq-a-inner{padding:0 18px 18px;}
  table.spec-table th,table.spec-table td{padding:14px 16px;}
}