/* roulang page: index */
:root{
  --bg-deep:#0B1026;
  --bg-body:#0E1530;
  --bg-content:#111B38;
  --brand:#1E6FFF;
  --cyan:#25D6E9;
  --amber:#FFAF45;
  --danger:#FF6B6B;
  --success:#3DD68C;
  --wline:#F2F7FF;
  --text-body:#C6D3E8;
  --text-weak:#7E91B3;
  --border-soft:rgba(255,255,255,0.16);
  --glass-bg:rgba(255,255,255,0.06);
  --shadow-card:0 10px 30px rgba(0,0,0,0.25);
  --side-shadow-card:0 14px 34px rgba(0,0,0,0.35);
  --radius-card:22px;
  --radius-btn:40px;
  --radius-tag:999px;
  --maxw:1280px;
  --font-main:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:90px}
body{
  font-family:var(--font-main);
  background:var(--bg-body);
  color:var(--text-body);
  line-height:1.75;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  position:relative;
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background:
    radial-gradient(900px 500px at 88% -10%,rgba(30,111,255,.18),transparent 60%),
    radial-gradient(600px 360px at 4% 18%,rgba(37,214,233,.08),transparent 45%),
    radial-gradient(800px 500px at 50% 110%,rgba(30,111,255,.07),transparent 60%);
}
body::after{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;opacity:.4;
  background-image:linear-gradient(rgba(255,255,255,.018) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.018) 1px,transparent 1px);
  background-size:64px 64px;
}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%;border:0}
button,input,select{font-family:inherit;font-size:inherit}
ul,ol{list-style:none}
.container{width:min(92%,var(--maxw));margin:0 auto;position:relative;z-index:2}
.glass{
  position:relative;
  background:linear-gradient(135deg,rgba(255,255,255,.09),rgba(255,255,255,.035));
  border:1px solid rgba(255,255,255,.16);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  border-radius:var(--radius-card);
  box-shadow:0 10px 30px rgba(0,0,0,.24),inset 0 1px 0 rgba(255,255,255,.10);
  overflow:hidden;
}
.glass::before{
  content:"";position:absolute;left:0;top:20px;bottom:20px;width:2px;border-radius:2px;opacity:.75;
  background:linear-gradient(to bottom,var(--cyan),transparent 80%);
}
.btn-primary,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  border-radius:var(--radius-btn);
  padding:12px 28px;
  font-size:15px;font-weight:500;line-height:1.2;
  border:0;cursor:pointer;transition:transform .2s ease,box-shadow .25s ease,background .25s ease,color .25s ease,border-color .25s ease;
  letter-spacing:.02em;
  -webkit-tap-highlight-color:transparent;
}
.btn-primary{
  background:linear-gradient(135deg,var(--brand),#4D8DFF);
  color:#fff;
  box-shadow:0 4px 24px rgba(30,111,255,.45),0 0 0 1px rgba(255,255,255,.06) inset;
}
.btn-primary:hover{background:#3A82FF;box-shadow:0 6px 30px rgba(37,214,233,.35),0 0 0 1px rgba(255,255,255,.1) inset;transform:translateY(-2px)}
.btn-primary:active{transform:scale(.98)}
.btn-ghost{
  background:rgba(255,255,255,.08);
  color:var(--wline);
  border:1px solid rgba(255,255,255,.22);
  box-shadow:0 2px 12px rgba(0,0,0,.12);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
}
.btn-ghost:hover{border-color:rgba(37,214,233,.6);background:rgba(37,214,233,.1);color:#fff;transform:translateY(-2px)}
.btn-ghost:active{transform:scale(.98)}
.text-link{
  display:inline-flex;align-items:center;gap:8px;color:#8AB4FF;font-weight:500;transition:gap .25s ease,color .25s ease;
}
.text-link i{transition:transform .25s ease}
.text-link:hover{color:#39C4FF;gap:12px}
.text-link:hover i{transform:translateX(3px)}
.section{padding:82px 0;position:relative}
.section.deco-light{
  background:linear-gradient(180deg,rgba(13,20,45,.4),rgba(10,14,32,.4));
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(37,214,233,.12);color:#7EE8F5;
  border:1px solid rgba(37,214,233,.24);
  border-radius:var(--radius-tag);
  padding:5px 16px;font-size:12px;letter-spacing:.08em;
}
.section-title{
  color:var(--wline);font-size:clamp(24px,3vw,36px);font-weight:700;
  line-height:1.4;margin:16px 0 14px;letter-spacing:.01em;
}
.section-sub{max-width:680px;color:var(--text-weak);font-size:15.5px}
section .section-head{margin-bottom:40px}
/* header */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:rgba(11,16,38,.72);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  border-bottom:1px solid rgba(255,255,255,.08);
  transition:background .4s ease,box-shadow .4s ease;
}
.site-header.scrolled{
  background:rgba(7,10,24,.90);
  box-shadow:0 12px 32px rgba(0,0,0,.38);
}
.header-inner{
  display:flex;align-items:center;gap:16px;padding:14px 0;flex-wrap:nowrap;
}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
  width:42px;height:42px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#1E6FFF,#25D6E9);
  color:#fff;font-size:20px;font-weight:800;
  box-shadow:0 6px 22px rgba(30,111,255,.48);position:relative;
}
.logo-mark:after{
  content:"";position:absolute;inset:3px;border-radius:10px;border:1px solid rgba(255,255,255,.24);
}
.logo-name{color:#fff;font-size:20px;font-weight:700;letter-spacing:.02em;white-space:nowrap;font-family:var(--font-main)}
.logo-name span{color:var(--cyan);font-weight:400}
.search-form{
  flex:1 1 auto;max-width:520px;margin:0 auto;display:flex;align-items:center;
  height:46px;border-radius:var(--radius-btn);
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.15);
  padding:0 7px 0 18px;
  transition:border-color .3s,box-shadow .3s,background .3s;
  position:relative;
}
.search-form:focus-within{
  border-color:rgba(37,214,233,.75);
  background:rgba(20,30,62,.9);
  box-shadow:0 0 0 3px rgba(37,214,233,.12),0 0 26px rgba(37,214,233,.16);
}
.search-form .fa-magnifying-glass{color:#8AA0C6;font-size:14px}
.search-form input{
  flex:1;background:transparent;border:0;outline:none;color:var(--wline);
  font-size:14px;padding:9px 12px;line-height:1.4;min-width:0;
}
.search-form input::placeholder{color:#6C7FA0}
.search-form button{
  border:0;background:linear-gradient(135deg,var(--brand),#2E77FF);color:#fff;
  height:34px;padding:0 20px;border-radius:999px;font-size:13px;cursor:pointer;
  transition:filter .2s,transform .2s;display:flex;align-items:center;gap:7px;
}
.search-form button:hover{filter:brightness(1.14)}
.search-form button:active{transform:scale(.97)}
.main-nav{flex-shrink:0}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-links a{
  display:inline-flex;align-items:center;gap:6px;padding:7px 15px;border-radius:999px;
  color:#AFC0DD;font-size:14px;font-weight:500;transition:background .25s,color .25s,border-color .25s;
  border:1px solid transparent;
}
.nav-links a:hover{color:#fff;background:rgba(255,255,255,.06)}
.nav-links a.current{
  color:#fff;background:rgba(37,214,233,.11);border-color:rgba(37,214,233,.24);
}
.header-cta{flex-shrink:0}
.header-cta .btn-primary{padding:10px 22px;font-size:14px}
.nav-toggle{
  display:none;background:transparent;border:1px solid rgba(255,255,255,.2);
  color:#fff;width:42px;height:42px;border-radius:12px;cursor:pointer;
  align-items:center;justify-content:center;font-size:18px;transition:background .2s;
}
.nav-toggle:hover{background:rgba(255,255,255,.08)}
/* hero */
.hero{
  position:relative;
  min-height:700px;
  display:flex;align-items:center;
  padding:120px 0 150px;
  isolation:isolate;
  background:url("/assets/images/backpic/back-1.webp") center/cover no-repeat;
}
.hero::before{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(112deg,rgba(6,10,26,.96) 5%,rgba(9,18,44,.86) 38%,rgba(21,37,70,.74) 78%,rgba(24,44,84,.66) 100%);
}
.hero::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:180px;z-index:-1;
  background:linear-gradient(to bottom,transparent,rgba(14,21,48,.96) 90%,var(--bg-body) 100%);
}
.hero-grid{
  display:grid;grid-template-columns:1fr .89fr;gap:60px;align-items:center;
}
.hero-content{max-width:680px}
.hero-content .eyebrow{
  background:rgba(255,175,69,.12);border-color:rgba(255,175,69,.25);color:#FFD9A0;
}
.hero h1{
  font-size:clamp(33px,4.7vw,58px);
  color:#fff;line-height:1.32;font-weight:800;
  margin:24px 0 18px;letter-spacing:.01em;
  word-break:break-word;
}
.hero-sub{
  font-size:17px;line-height:1.85;color:#C2D3E8;max-width:620px;
}
.hero-actions{
  display:flex;flex-wrap:wrap;align-items:center;gap:15px;margin-top:32px;
}
.hero-safe{
  margin-top:20px;display:flex;align-items:center;gap:8px;color:#8296B8;font-size:13px;
  flex-wrap:wrap;
}
.hero-safe i{color:var(--cyan)}
.hero-panel{
  padding:28px 26px;position:relative;
}
.hero-panel-tag{
  display:inline-block;font-size:12px;padding:4px 13px;border-radius:999px;background:rgba(37,214,233,.14);
  border:1px solid rgba(37,214,233,.2);color:#8BEFFB;margin-bottom:18px;letter-spacing:.05em;
}
.hero-panel h3{color:#fff;font-size:20px;margin-bottom:8px}
.hero-panel p.sub{color:#9BACC9;font-size:13.5px;margin-bottom:16px}
.panel-list li{
  display:flex;gap:11px;align-items:flex-start;padding:0;margin-bottom:12px;
  color:#C6D3E8;font-size:14px;
}
.panel-list li:last-child{margin-bottom:0}
.panel-dot{width:7px;height:7px;border-radius:50%;flex-shrink:0;margin-top:9px;box-shadow:0 0 8px currentColor}
.panel-dot.cyan{background:var(--cyan);color:var(--cyan)}
.panel-dot.amber{background:var(--amber);color:var(--amber)}
.panel-dot.blue{background:#8AB4FF;color:#8AB4FF}
.panel-line{height:1px;background:linear-gradient(90deg,transparent,rgba(255,255,255,.24),transparent);margin:18px 0}
.panel-note{color:#9BACC9;font-size:13px;display:flex;gap:8px}
.panel-note i{color:var(--amber)}
.hero-route{
  position:relative;z-index:6;margin-top:-74px;
}
.route-bar{
  display:flex;align-items:center;gap:13px;flex-wrap:wrap;padding:15px 20px;
  border-radius:999px;
}
.route-title{color:#D6E2F2;font-size:14px;white-space:nowrap}
.chip-tag{
  display:inline-flex;align-items:center;gap:7px;
  background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.18);
  padding:7px 17px;border-radius:999px;font-size:13.5px;color:#E3EDFB;
  transition:all .25s ease;
}
.chip-tag:hover{background:rgba(37,214,233,.14);border-color:rgba(37,214,233,.5);color:#fff;transform:translateY(-1px)}
.route-status{
  margin-left:auto;display:inline-flex;align-items:center;gap:8px;color:#8FB5D9;font-size:12.5px;
  background:rgba(15,25,58,.6);border-radius:999px;padding:5px 15px;
}
.route-status i{color:var(--success);font-size:13px}
/* pain */
.pain-points .split{display:grid;grid-template-columns:1fr .82fr;gap:60px;align-items:center}
.point-list{margin-top:24px;display:grid;gap:14px}
.point-list li{
  display:flex;gap:12px;align-items:flex-start;
  background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08);
  padding:13px 16px;border-radius:16px;font-size:14.5px;transition:background .25s,border-color .25s;
}
.point-list li:hover{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.14)}
.point-list i{color:var(--amber);margin-top:5px;font-size:15px;width:18px}
.pain-meta{color:#8296B8;font-size:13px;margin-top:14px}
.split-visual{position:relative}
.visual-frame{
  position:relative;border-radius:24px;padding:10px;background:linear-gradient(150deg,rgba(37,214,233,.18),rgba(255,255,255,.03));
}
.visual-frame img{width:100%;height:350px;object-fit:cover;border-radius:18px}
.mini-tag{
  display:inline-block;position:absolute;right:-10px;bottom:28px;
  background:rgba(15,23,50,.92);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  border:1px solid rgba(255,255,255,.18);padding:9px 18px;border-radius:999px;color:#E9F2FF;font-size:12.5px;
  box-shadow:0 12px 28px rgba(0,0,0,.36);white-space:nowrap;
}
.mini-tag i{color:var(--cyan);margin-right:4px}
.mini-tag.amber i{color:var(--amber)}
/* solutions */
.solution-area{padding:70px 0 90px;position:relative}
.solution-grid{
  display:grid;grid-template-columns:1.05fr .9fr;gap:20px;align-items:stretch;
}
.feature-card{
  border-radius:24px;padding:28px;position:relative;transition:transform .3s ease,box-shadow .3s ease;
  display:flex;flex-direction:column;
}
.feature-card:hover{transform:translateY(-6px);box-shadow:0 18px 44px rgba(0,0,0,.35)}
.feature-card .card-media{border-radius:18px;overflow:hidden;margin:-8px -8px 16px;
}
.feature-card .card-media img{width:100%;height:260px;object-fit:cover}
.feature-badge{
  display:inline-flex;align-items:center;gap:7px;align-self:flex-start;
  background:rgba(37,214,233,.13);border:1px solid rgba(37,214,233,.26);
  color:#8FE7F4;padding:5px 14px;border-radius:999px;font-size:12px;letter-spacing:.03em;
  margin-bottom:14px;
}
.feature-card h3{color:#fff;font-size:22px;line-height:1.55;margin-bottom:8px}
.feature-card p{color:#AFC0DD;font-size:14.5px;flex:1}
.feature-footer{display:flex;align-items:center;justify-content:space-between;margin-top:22px;flex-wrap:wrap;gap:10px}
.feature-status{
  display:inline-flex;align-items:center;gap:7px;background:rgba(255,175,69,.09);
  border:1px solid rgba(255,175,69,.2);padding:5px 13px;border-radius:999px;font-size:12px;color:#FFCF86;
}
.solution-stack{display:grid;gap:20px}
.solution-stack .feature-card{
  min-height:220px;padding:24px;
}
.solution-stack .feature-card .card-media{margin:0 0 14px}
.solution-stack .feature-card .card-media img{height:120px}
.solution-stack h3{color:#fff;font-size:18px;line-height:1.5}
.solution-stack p{font-size:14px;color:#AFC0DD;margin-top:6px}
.solution-stack .text-link{margin-top:auto}
/* stats */
.stats-band{
  position:relative;
  background:url("/assets/images/backpic/back-3.png") center/cover no-repeat fixed;
  padding:78px 0;
}
.stats-band::before{
  content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(8,12,30,.96),rgba(13,25,55,.9));
}
.stats-grid{
  display:grid;grid-template-columns:repeat(4,1fr);border:1px solid rgba(255,255,255,.08);
  border-radius:28px;overflow:hidden;background:rgba(7,12,28,.56);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
}
.stat-item{
  text-align:center;padding:42px 22px;position:relative;
}
.stat-item::after{
  content:"";position:absolute;right:0;top:18%;bottom:18%;width:1px;
  background:linear-gradient(to bottom,transparent,rgba(255,255,255,.16),transparent);
}
.stat-item:last-child::after{display:none}
.stat-item strong{
  display:block;color:var(--amber);font-size:48px;font-weight:800;line-height:1.1;letter-spacing:.02em;
  text-shadow:0 0 30px rgba(255,175,69,.2);
}
.stat-item span{display:block;color:#fff;font-size:16px;font-weight:600;margin-top:9px}
.stat-item p{color:#8B9DBA;font-size:13px;margin-top:6px;max-width:190px;margin-left:auto;margin-right:auto}
/* FAQ */
.faq-wrap{max-width:850px;margin:0 auto}
.faq-item{
  margin-bottom:14px;border-radius:18px;border:1px solid rgba(255,255,255,.1);
  background:rgba(255,255,255,.045);transition:background .25s,border-color .25s;
  overflow:hidden;
}
.faq-item:hover{border-color:rgba(37,214,233,.3)}
.faq-item.open{background:rgba(255,255,255,.065);border-color:rgba(37,214,233,.35)}
.faq-q{
  width:100%;display:flex;align-items:center;gap:12px;justify-content:space-between;
  background:transparent;border:0;color:#EAF2FF;font-size:15.5px;text-align:left;
  padding:18px 20px;cursor:pointer;border-radius:18px;font-weight:500;line-height:1.5;
}
.faq-q i{margin-right:4px;color:var(--cyan);font-size:14px}
.faq-q .faq-arrow{
  flex-shrink:0;width:28px;height:28px;border-radius:50%;
  background:rgba(255,255,255,.07);display:inline-flex;align-items:center;justify-content:center;
  border:1px solid rgba(255,255,255,.14);transition:transform .3s ease;
}
.faq-item.open .faq-arrow{transform:rotate(180deg);background:rgba(37,214,233,.15);border-color:rgba(37,214,233,.4)}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height .35s ease,padding .25s ease;
  color:#B7C5DB;font-size:14.5px;line-height:1.85;
}
.faq-a-inner{padding:4px 20px 20px}
.faq-a-inner p{color:#B4C3DA}
/* testimonial */
.testimonial-grid{
  display:grid;grid-template-columns:1.05fr .95fr .95fr;gap:22px;align-items:stretch;
}
.testimonial-card{
  border-radius:24px;padding:28px 26px;transition:transform .3s ease,box-shadow .3s ease;
}
.testimonial-card:hover{transform:translateY(-5px)}
.t-top{display:flex;align-items:center;gap:12px;margin-bottom:15px}
.t-avatar{
  width:46px;height:46px;border-radius:50%;background:linear-gradient(135deg,#1E6FFF,#25D6E9);
  display:flex;align-items:center;justify-content:center;color:#fff;font-size:17px;font-weight:700;
  overflow:hidden;flex-shrink:0;
}
.t-info{flex:1}
.t-name{color:#fff;font-size:15px;font-weight:600}
.t-role{color:#778AA9;font-size:12px;margin-top:2px}
.t-stars{display:flex;gap:2px;color:var(--amber);font-size:13px;margin-bottom:12px}
.t-stars i.off{color:#55637F}
.t-text{font-size:14.5px;line-height:1.85;color:#BFCEE4}
/* cta */
.cta-wrap{
  position:relative;padding:92px 0;text-align:center;isolation:isolate;
  background:url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
}
.cta-wrap::before{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(120deg,rgba(7,10,27,.95),rgba(15,27,58,.85));
}
.cta-wrap::after{
  content:"";position:absolute;width:560px;height:560px;left:50%;top:50%;transform:translate(-50%,-50%);
  background:radial-gradient(circle,rgba(37,214,233,.14),rgba(30,111,255,.05) 38%,transparent 68%);
  z-index:-1;pointer-events:none;
}
.cta-wrapper{max-width:780px;margin:0 auto}
.cta-wrap h2{color:#fff;font-size:clamp(26px,4.2vw,44px);line-height:1.45;font-weight:800;letter-spacing:.01em}
.cta-wrap .cta-sub{color:#B9C9DF;font-size:16px;margin-top:14px;line-height:1.85}
.cta-buttons{display:flex;justify-content:center;flex-wrap:wrap;gap:16px;margin-top:32px}
.cta-note{margin-top:22px;font-size:13px;color:#7686A5}
.cta-note i{color:var(--cyan)}
/* cms latest */
.latest-section{padding-top:70px}
.latest-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.post-card{
  display:flex;flex-direction:column;gap:10px;
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.09);
  padding:22px;border-radius:22px;
  min-height:220px;transition:transform .3s,border-color .3s,box-shadow .3s;
  position:relative;overflow:hidden;
}
.post-card::before{
  content:"";position:absolute;left:0;top:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--brand),var(--cyan));opacity:.65;
}
.post-card:hover{transform:translateY(-6px);border-color:rgba(37,214,233,.32);box-shadow:0 18px 40px rgba(0,0,0,.3)}
.post-cat{
  align-self:flex-start;background:rgba(30,111,255,.13);border:1px solid rgba(30,111,255,.24);
  color:#9CC0FF;font-size:12px;padding:3px 13px;border-radius:999px;
}
.post-title{color:#fff;font-size:17.5px;font-weight:700;line-height:1.55}
.post-summary{color:#AFC0DD;font-size:14px;line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;flex:1}
.post-meta{display:flex;align-items:center;justify-content:space-between;color:#7288A8;font-size:12.5px;padding-top:10px;border-top:1px solid rgba(255,255,255,.07)}
.post-meta .read-more{color:#8AB4FF;font-size:13px;display:inline-flex;align-items:center;gap:6px}
.post-empty{
  grid-column:1/-1;text-align:center;padding:64px 20px;border-radius:22px;
  background:rgba(255,255,255,.04);border:1px dashed rgba(255,255,255,.13);color:#8B9FBF;font-size:15px;
}
.post-empty i{font-size:30px;display:block;margin-bottom:10px;color:#3D5B82}
/* footer */
.site-footer{
  margin-top:60px;border-top:1px solid rgba(255,255,255,.08);
  background:#080D20;
}
.footer-main{padding:58px 0 32px;display:grid;grid-template-columns:1.3fr .7fr .9fr;gap:48px}
.footer-logo{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-logo .logo-mark{width:38px;height:38px;border-radius:12px;font-size:17px}
.footer-brand-desc{color:#7F91B0;font-size:13.5px;line-height:1.9;max-width:330px}
.footer-nav{display:flex;flex-direction:column;gap:4px}
.footer-nav a{
  display:inline-flex;align-items:center;gap:8px;padding:6px 0;
  color:#9AACC9;font-size:14px;transition:all .25s;
}
.footer-nav a:hover{color:#fff;padding-left:5px}
.footer-nav a i{color:var(--cyan);font-size:10px}
.footer-heading{color:#E5EEFB;font-size:16px;font-weight:600;margin-bottom:12px}
.footer-tech p{color:#7487A6;font-size:13px;line-height:1.9}
.footer-tech .status-chip{
  display:inline-flex;align-items:center;gap:6px;background:rgba(61,214,140,.1);
  color:#86E6B6;font-size:12px;border:1px solid rgba(61,214,140,.2);
  padding:4px 12px;border-radius:999px;margin-top:8px;
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.06);
  padding:18px 0 20px;
  display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:10px;
  color:#65799B;font-size:12.5px;
}
/* focus & misc */
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:4px}
.empty-note{text-align:center;color:#7E91B3;font-size:13px;margin-top:20px}
.deco-line{
  height:1px;background:linear-gradient(90deg,transparent,rgba(37,214,233,.2),rgba(255,255,255,.2),rgba(37,214,233,.2),transparent);
  margin:26px 0;
}
/* responsive */
@media (max-width:1200px){
  .testimonial-grid{grid-template-columns:1fr 1fr}
  .testimonial-card:last-child{grid-column:1/-1}
}
@media (max-width:1050px){
  .hero-grid{grid-template-columns:1fr .9fr;gap:34px}
  .hero h1{font-size:36px}
  .main-nav{display:flex;align-items:center}
  .nav-links a{padding:7px 11px}
  .search-form{max-width:430px}
  .solution-grid{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .stat-item:nth-child(2)::after{display:none}
  .footer-main{grid-template-columns:1fr .8fr}
}
@media (max-width:860px){
  .site-header .header-inner{flex-wrap:wrap;gap:10px;padding:12px 0}
  .logo{order:1;flex:1}
  .header-cta{order:2;display:none}
  .nav-toggle{order:3;display:inline-flex}
  .search-form{order:4;flex:0 0 100%;width:100%;max-width:100%}
  .main-nav{
    order:5;flex:0 0 100%;width:100%;display:none;
    background:rgba(7,10,24,.92);border-radius:20px;padding:12px;margin-top:6px;
  }
  .main-nav.open{display:block}
  .nav-links{flex-direction:column;gap:4px}
  .nav-links li,.nav-links a{width:100%}
  .nav-links a{padding:12px 16px;justify-content:flex-start}
  .faq-q{font-size:14.5px;padding:15px 16px}
  .hero{padding:90px 0 140px;min-height:unset}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero-panel{max-width:100%}
  .hero-sub{font-size:15.5px}
  .hero h1{font-size:32px}
  .route-bar{border-radius:20px}
  .route-status{margin-left:0}
  .separate-block{grid-template-columns:1fr}
  .pain-points .split{grid-template-columns:1fr;gap:38px}
  .visual-frame img{height:250px}
  .section{padding:54px 0}
  .section-title{font-size:26px}
  .solution-grid{grid-template-columns:1fr}
  .testimonial-grid{grid-template-columns:1fr}
  .testimonial-card:last-child{grid-column:auto}
  .latest-grid{grid-template-columns:1fr 1fr}
  .footer-main{grid-template-columns:1fr;gap:34px}
  .footer-tech{padding-left:0}
}
@media (max-width:560px){
  .header-cta{display:none}
  .logo-name{font-size:16px}
  .logo-mark{width:36px;height:36px;font-size:16px;border-radius:10px}
  .btn-primary{padding:10px 20px;font-size:14px}
  .hero h1{font-size:28px}
  .hero-content .eyebrow{font-size:11px}
  .hero-sub{font-size:14.5px}
  .hero-panel{padding:22px 18px}
  .route-bar{gap:8px;padding:14px}
  .route-title{width:100%}
  .chip-tag{padding:6px 12px;font-size:12.5px}
  .stats-grid{grid-template-columns:1fr 1fr;border-radius:20px}
  .stat-item{padding:28px 12px}
  .stat-item strong{font-size:34px}
  .stat-item p{font-size:11.5px}
  .split-visual .mini-tag{position:static;width:auto;margin-top:8px}
  .latest-grid{grid-template-columns:1fr}
  .cta-wrap{padding:64px 0}
  .testimonial-card{padding:22px 18px}
  .footer-bottom{flex-direction:column;text-align:center}
  .search-form button i{display:none}
  .search-form button{width:38px;padding:0;justify-content:center}
}
@media (hover:none){
  .feature-card:hover,.testimonial-card:hover,.post-card:hover,.chip-tag:hover{
    transform:none;
  }
}

/* roulang page: article */
:root {
  --bg-deep: #0b1026;
  --bg-body: #111b38;
  --bg-nav: rgba(11, 16, 38, 0.88);
  --brand: #1e6fff;
  --accent: #25d6e9;
  --warm: #ffaf45;
  --white: #f2f7ff;
  --text-main: #c6d3e8;
  --text-muted: #7e91b3;
  --border: rgba(255, 255, 255, 0.16);
  --br-btn: 40px;
  --br-card: 22px;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
  --font-stack: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Helvetica Neue", sans-serif;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg-deep);
  color: var(--text-main);
  font-family: var(--font-stack);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.25s ease, background 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease;
}

ul,
ol {
  list-style: none;
}

button,
input,
textarea,
select {
  font-family: inherit;
  font-size: inherit;
}

button {
  border: none;
  cursor: pointer;
}

.container {
  max-width: 1260px;
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}

/* 按钮 */
.btn-primary,
.btn-secondary,
.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--br-btn);
  font-size: 15px;
  font-weight: 600;
  line-height: 1;
  transition: background 0.3s ease, box-shadow 0.3s ease, color 0.3s ease, border-color 0.3s ease, transform 0.15s ease;
}

.btn-primary {
  background: linear-gradient(135deg, #1e6fff, #2a8bff);
  color: #fff;
  box-shadow: 0 0 0 1px rgba(37, 214, 233, 0.35), 0 6px 26px rgba(30, 111, 255, 0.4);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #2a78ff, #45a0ff);
  box-shadow: 0 0 0 1px rgba(37, 214, 233, 0.45), 0 8px 34px rgba(30, 111, 255, 0.55);
  transform: translateY(-2px);
}

.btn-primary:active {
  transform: scale(0.98);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.22);
  color: var(--white);
  backdrop-filter: blur(12px);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(37, 214, 233, 0.55);
  color: var(--accent);
  transform: translateY(-2px);
}

.btn-ghost {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.18);
  color: var(--text-main);
}

.btn-ghost:hover {
  border-color: rgba(37, 214, 233, 0.6);
  color: var(--accent);
}

a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: 2px solid rgba(37, 214, 233, 0.85);
  outline-offset: 3px;
}

/* 导航 */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(8, 12, 30, 0.8);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
  transition: background 0.35s ease, box-shadow 0.35s ease;
}

.site-header.scrolled {
  background: rgba(6, 9, 22, 0.92);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.35);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 12px 0;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.logo-mark {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--brand), var(--accent));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 800;
  color: #fff;
  box-shadow: 0 0 22px rgba(37, 214, 233, 0.3);
}

.logo-name {
  font-size: 20px;
  font-weight: 800;
  color: var(--white);
  white-space: nowrap;
}

.logo-name span {
  color: var(--brand);
}

.search-form {
  display: flex;
  align-items: center;
  flex: 1;
  max-width: 460px;
  min-width: 200px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 44px;
  padding: 4px 6px 4px 16px;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.search-form:focus-within {
  border-color: rgba(37, 214, 233, 0.7);
  box-shadow: 0 0 0 4px rgba(37, 214, 233, 0.1), 0 0 26px rgba(37, 214, 233, 0.12);
}

.search-form > i {
  color: var(--text-muted);
  font-size: 16px;
  margin-right: 8px;
}

.search-form input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--white);
  font-size: 15px;
  padding: 8px 4px;
  min-width: 0;
}

.search-form input::placeholder {
  color: #6c7fa0;
}

.search-form button {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: linear-gradient(135deg, var(--brand), #38a5ff);
  color: #fff;
  border-radius: 38px;
  padding: 9px 18px;
  font-size: 14px;
  font-weight: 600;
  box-shadow: 0 0 18px rgba(30, 111, 255, 0.3);
}

.search-form button:hover {
  background: linear-gradient(135deg, #2b78ff, #56b4ff);
}

.main-nav {
  margin-left: auto;
  display: flex;
  align-items: center;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2px;
}

.nav-links a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--text-muted);
  font-size: 15px;
  font-weight: 500;
  padding: 8px 15px;
  border-radius: 999px;
  transition: all 0.25s ease;
}

.nav-links a i {
  color: rgba(37, 214, 233, 0.7);
  font-size: 15px;
}

.nav-links a:hover {
  color: var(--white);
  background: rgba(255, 255, 255, 0.07);
}

.nav-links a.current {
  color: #fff;
  background: rgba(30, 111, 255, 0.24);
  box-shadow: inset 0 0 0 1px rgba(30, 111, 255, 0.45);
}

.header-cta {
  display: flex;
  align-items: center;
  margin-left: 8px;
}

.header-cta .btn-primary {
  padding: 10px 20px;
  font-size: 14px;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: var(--white);
  font-size: 20px;
  align-items: center;
  justify-content: center;
}

/* 通用 Hero 横幅 */
.article-banner {
  background:
    linear-gradient(180deg, rgba(11, 16, 38, 0.82) 10%, rgba(11, 16, 38, 0.92) 100%),
    url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
  min-height: 300px;
  padding: 52px 0 42px;
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.article-banner::before {
  content: "";
  position: absolute;
  width: 420px;
  height: 420px;
  left: -120px;
  top: -160px;
  background: radial-gradient(circle, rgba(37, 214, 233, 0.16), transparent 70%);
  pointer-events: none;
}

.article-banner .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.article-banner .breadcrumb a {
  color: rgba(242, 247, 255, 0.6);
  transition: color 0.2s ease;
}

.article-banner .breadcrumb a:hover {
  color: var(--accent);
}

.article-banner .breadcrumb .sep {
  color: rgba(255, 255, 255, 0.25);
}

.article-banner .breadcrumb .on {
  color: var(--white);
}

.article-banner h1 {
  font-size: clamp(30px, 4.2vw, 46px);
  color: var(--white);
  font-weight: 700;
  line-height: 1.3;
  word-break: break-word;
  margin-bottom: 20px;
  letter-spacing: 0.02em;
}

.article-meta-line {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 20px;
  color: var(--text-muted);
  font-size: 14px;
}

.article-meta-line span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.article-meta-line i {
  color: rgba(37, 214, 233, 0.7);
}

.article-meta-line .badge-cat {
  background: rgba(30, 111, 255, 0.2);
  border: 1px solid rgba(30, 111, 255, 0.4);
  border-radius: 999px;
  padding: 4px 14px;
  color: var(--white);
  font-size: 13px;
}

/* 正文主体区 */
.article-body-wrap {
  background-color: var(--bg-body);
  padding: 48px 0 72px;
  background-image: radial-gradient(circle at 18% 12%, rgba(37, 214, 233, 0.05), transparent 30%);
}

.body-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 335px;
  gap: 40px;
  align-items: start;
}

.article-frame {
  background: rgba(10, 16, 38, 0.75);
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 24px;
  padding: 32px 36px;
  box-shadow: var(--shadow);
}

.article-body {
  line-height: 1.85;
  color: var(--text-main);
  word-break: break-word;
}

.article-body > * {
  margin-bottom: 1.25em;
}

.article-body p {
  font-size: 16px;
  line-height: 1.85;
}

.article-body h2 {
  font-size: 27px;
  color: var(--white);
  font-weight: 700;
  padding-left: 16px;
  border-left: 4px solid var(--brand);
  margin-top: 1.8em;
  margin-bottom: 0.8em;
  line-height: 1.4;
}

.article-body h3 {
  font-size: 21px;
  color: var(--white);
  font-weight: 650;
  margin-top: 1.6em;
  margin-bottom: 0.6em;
}

.article-body img {
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.09);
  margin: 24px 0;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.25);
}

.article-body ul,
.article-body ol {
  padding-left: 20px;
}

.article-body ul li {
  list-style: disc;
  padding-left: 6px;
  margin-bottom: 8px;
}

.article-body ol li {
  list-style: decimal;
  padding-left: 6px;
  margin-bottom: 8px;
}

.article-body blockquote {
  background: rgba(255, 255, 255, 0.04);
  border-left: 4px solid var(--warm);
  padding: 18px 20px;
  margin: 24px 0;
  border-radius: 0 16px 16px 0;
  color: rgba(242, 247, 255, 0.85);
  font-style: normal;
}

.article-body a {
  color: var(--accent);
  border-bottom: 1px solid rgba(37, 214, 233, 0.4);
  transition: all 0.25s ease;
}

.article-body a:hover {
  color: #fff;
  border-bottom-color: var(--accent);
}

.article-body code {
  background: rgba(30, 111, 255, 0.1);
  border: 1px solid rgba(30, 111, 255, 0.2);
  padding: 2px 8px;
  border-radius: 8px;
  font-size: 0.9em;
  color: var(--accent);
}

.article-body pre {
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 16px;
  padding: 22px;
  overflow-x: auto;
  margin: 24px 0;
}

/* 内容缺失 */
.content-missing {
  text-align: center;
  padding: 48px 12px 40px;
}

.content-missing .icon-box {
  width: 84px;
  height: 84px;
  margin: 0 auto 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 24px;
  background: rgba(30, 111, 255, 0.14);
  border: 1px solid rgba(37, 214, 233, 0.3);
  font-size: 38px;
  color: var(--accent);
}

.content-missing h2 {
  font-size: 28px;
  color: var(--white);
  margin-bottom: 14px;
}

.content-missing p {
  color: var(--text-muted);
  max-width: 420px;
  margin: 0 auto 28px;
}

.missing-actions {
  display: flex;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
}

/* 侧栏 */
.site-sidebar {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.side-card {
  background: rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-left: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 22px;
  padding: 22px;
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.25);
}

.side-card .side-cover {
  height: 156px;
  border-radius: 15px;
  overflow: hidden;
  margin-bottom: 16px;
  background: #16234a;
}

.side-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.side-card h3 {
  color: var(--white);
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 9px;
}

.side-card h3 i {
  color: var(--warm);
  font-size: 16px;
}

.side-card p {
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.7;
  margin-bottom: 16px;
}

.side-links {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.side-links a {
  color: var(--text-main);
  font-size: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 6px;
  border-radius: 10px;
  transition: all 0.2s ease;
}

.side-links a:hover {
  background: rgba(255, 255, 255, 0.06);
  color: var(--white);
}

.side-links a i {
  color: var(--accent);
  font-size: 12px;
}

.side-card .btn-primary,
.side-card .btn-secondary {
  width: 100%;
  padding: 10px 16px;
  font-size: 14px;
}

.side-card .mini-status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  background: rgba(37, 214, 233, 0.1);
  border: 1px solid rgba(37, 214, 233, 0.3);
  color: rgba(242, 247, 255, 0.75);
  border-radius: 999px;
  padding: 4px 12px;
}

/* 继续浏览区 */
#category-center {
  scroll-margin-top: 90px;
}

.continue-section {
  background: linear-gradient(145deg, rgba(11, 16, 38, 0.9), rgba(12, 24, 52, 0.9));
  padding: 58px 0 72px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  position: relative;
  overflow: hidden;
}

.continue-section::before {
  content: "";
  position: absolute;
  right: -120px;
  top: -120px;
  width: 420px;
  height: 420px;
  background: radial-gradient(circle, rgba(30, 111, 255, 0.12), transparent 68%);
}

.section-heading {
  margin-bottom: 28px;
}

.section-heading h2 {
  font-size: clamp(24px, 3vw, 31px);
  color: var(--white);
  font-weight: 650;
  line-height: 1.4;
}

.section-heading p {
  color: var(--text-muted);
  margin-top: 8px;
  max-width: 620px;
  font-size: 15px;
}

.continue-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.entry-card {
  background: rgba(255, 255, 255, 0.065);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 24px;
  padding: 22px;
  position: relative;
  transition: background 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
  overflow: hidden;
}

.entry-card::after {
  content: "";
  position: absolute;
  width: 100%;
  height: 3px;
  left: 0;
  bottom: 0;
  background: linear-gradient(90deg, var(--brand), var(--accent));
  opacity: 0;
  transition: opacity 0.3s ease;
}

.entry-card:hover {
  background: rgba(255, 255, 255, 0.095);
  transform: translateY(-6px);
  box-shadow: 0 18px 38px rgba(0, 0, 0, 0.3);
}

.entry-card:hover::after {
  opacity: 1;
}

.entry-card .card-icon {
  width: 46px;
  height: 46px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  margin-bottom: 20px;
}

.card-icon.blue {
  background: rgba(30, 111, 255, 0.2);
  color: var(--accent);
  border: 1px solid rgba(30, 111, 255, 0.3);
}

.card-icon.orange {
  background: rgba(255, 175, 69, 0.18);
  color: var(--warm);
  border: 1px solid rgba(255, 175, 69, 0.35);
}

.entry-card h3 {
  color: var(--white);
  font-size: 18px;
  font-weight: 650;
  margin-bottom: 8px;
}

.entry-card p {
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.65;
}

.entry-card .go-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-top: 20px;
  color: var(--accent);
  font-size: 14px;
  font-weight: 500;
}

.entry-card .go-link i {
  transition: transform 0.3s ease;
}

.entry-card:hover .go-link i {
  transform: translateX(5px);
}

/* CTA */
.article-cta {
  position: relative;
  padding: 68px 0;
  background:
    linear-gradient(0deg, rgba(11, 16, 38, 0.88), rgba(11, 16, 38, 0.92)),
    url('/assets/images/backpic/back-2.webp') center center / cover no-repeat;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.article-cta .cta-box {
  background: rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 24px;
  padding: 42px;
  text-align: center;
  max-width: 860px;
  margin: 0 auto;
}

.article-cta h2 {
  font-size: clamp(25px, 3.4vw, 33px);
  color: var(--white);
  font-weight: 700;
  margin-bottom: 12px;
  line-height: 1.4;
}

.article-cta p {
  color: var(--text-muted);
  font-size: 15px;
  max-width: 600px;
  margin: 0 auto 26px;
}

.article-cta .cta-btns {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* 页脚 */
.site-footer {
  background: #090d22;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding-top: 54px;
}

.footer-main {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1.3fr;
  gap: 36px;
  padding-bottom: 34px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--white);
  font-weight: 700;
}

.footer-brand-desc {
  margin-top: 12px;
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.8;
  max-width: 360px;
}

.footer-heading {
  color: var(--white);
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 14px;
}

.footer-nav {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-nav a {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: 14px;
  transition: color 0.2s ease;
}

.footer-nav a:hover {
  color: var(--accent);
}

.footer-nav a i {
  font-size: 11px;
}

.footer-tech {
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.8;
}

.footer-tech p {
  margin-bottom: 14px;
}

.status-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(37, 214, 233, 0.12);
  border: 1px solid rgba(37, 214, 233, 0.3);
  color: rgba(242, 247, 255, 0.8);
  font-size: 13px;
  border-radius: 999px;
  padding: 5px 13px;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  padding: 20px 0 24px;
  color: rgba(126, 145, 179, 0.8);
  font-size: 14px;
}

/* 响应式 */
@media (max-width: 1024px) {
  .header-inner {
    flex-wrap: wrap;
  }

  .search-form {
    order: 3;
    max-width: 100%;
    width: 100%;
    min-width: 100%;
    margin-top: 8px;
  }

  .body-grid {
    grid-template-columns: minmax(0, 1fr) 290px;
    gap: 28px;
  }

  .continue-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 860px) {
  .main-nav {
    order: 4;
    width: 100%;
    overflow-x: auto;
    margin-left: 0;
    padding-bottom: 4px;
  }

  .nav-links {
    gap: 4px;
  }

  .nav-links a {
    white-space: nowrap;
  }
}

@media (max-width: 767px) {
  .header-inner {
    flex-wrap: wrap;
    gap: 10px;
  }

  .header-cta {
    display: none;
  }

  .nav-toggle {
    display: inline-flex;
    margin-left: auto;
  }

  .main-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(8, 12, 30, 0.97);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding: 16px;
    overflow: visible;
  }

  .main-nav.open {
    display: block;
  }

  .nav-links {
    flex-direction: column;
    align-items: stretch;
    gap: 6px;
  }

  .nav-links a {
    padding: 12px 16px;
    border-radius: 12px;
    white-space: normal;
  }

  .article-banner {
    padding: 28px 0 30px;
    min-height: 0;
  }

  .article-banner h1 {
    font-size: clamp(26px, 7vw, 36px);
  }

  .article-body-wrap {
    padding: 22px 0 44px;
  }

  .article-frame {
    padding: 22px 18px;
    border-radius: 18px;
  }

  .body-grid {
    grid-template-columns: 1fr;
    gap: 26px;
  }

  .continue-grid {
    grid-template-columns: 1fr;
  }

  .continue-section,
  .article-cta {
    padding: 44px 0;
  }

  .article-cta .cta-box {
    padding: 28px 20px;
  }

  .cta-btns {
    flex-direction: column;
    align-items: center;
  }

  .footer-main {
    grid-template-columns: 1fr;
    gap: 26px;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* roulang page: category1 */
:root {
  --bg-deep: #0B1026;
  --bg-main: #101B3A;
  --bg-soft: #0F1834;
  --bg-card: rgba(255,255,255,0.055);
  --bg-card-solid: rgba(15,25,60,0.82);
  --glass-border: rgba(255,255,255,0.13);
  --line: rgba(255,255,255,0.09);
  --brand: #1E6FFF;
  --cyan: #25D6E9;
  --amber: #FFAF45;
  --danger: #FF6B6B;
  --success: #2BD576;
  --h1: #F2F7FF;
  --text: #C6D3E8;
  --muted: #7E91B3;
  --radius-card: 22px;
  --radius-btn: 999px;
  --radius-inner: 16px;
  --shadow-card: 0 10px 30px rgba(0,0,0,0.25);
  --shadow-float: 0 18px 40px rgba(0,0,0,0.35);
  --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-stack);
  background: var(--bg-deep);
  color: var(--text);
  line-height: 1.8;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
}

body.menu-open {
  overflow: hidden;
}

ul, ol {
  list-style: none;
}

a {
  color: var(--cyan);
  text-decoration: none;
  transition: color .2s ease, border-color .2s ease, background .2s ease, box-shadow .2s ease, transform .2s ease;
}

a:hover {
  color: #8FF2FF;
}

img {
  max-width: 100%;
  display: block;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

input, select, textarea {
  font-family: inherit;
  font-size: 15px;
  color: var(--h1);
}

.container {
  width: min(1240px, 92%);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 999;
  background: rgba(11, 14, 39, 0.72);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(255,255,255,0.07);
  transition: box-shadow .3s ease, background .3s ease;
}

.site-header.scrolled {
  background: rgba(8, 12, 30, 0.9);
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.28);
}

.header-inner {
  display: grid;
  grid-template-columns: auto minmax(250px, 1fr) auto auto;
  align-items: center;
  gap: 22px;
  min-height: 76px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--h1);
  flex-shrink: 0;
}

.logo:hover {
  color: var(--h1);
}

.logo-mark {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, #1E6FFF, #25D6E9);
  box-shadow: 0 0 18px rgba(37, 214, 233, 0.35);
  font-weight: 800;
  font-size: 18px;
  color: #fff;
}

.logo-name {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: 0.2px;
  line-height: 1.2;
  white-space: nowrap;
}

.logo-name span {
  color: #AEC6FF;
  font-weight: 400;
}

.search-form {
  display: flex;
  align-items: center;
  gap: 6px;
  height: 46px;
  border-radius: 999px;
  background: rgba(255,255,255,0.08);
  border: 1px solid #3D4E7B;
  padding: 0 6px 0 18px;
  transition: border .25s ease, box-shadow .25s ease, background .25s ease;
  max-width: 560px;
  width: 100%;
  margin: 0 auto;
}

.search-form:focus-within {
  border-color: var(--cyan);
  background: rgba(255,255,255,0.1);
  box-shadow: 0 0 0 3px rgba(37,214,233,0.15);
}

.search-form i {
  color: var(--muted);
  font-size: 14px;
}

.search-form input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  font-size: 14px;
  color: var(--h1);
}

.search-form input::placeholder {
  color: #6C7FA0;
}

.search-form input::-webkit-search-cancel-button {
  opacity: 0.4;
}

.search-form button {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 36px;
  padding: 0 18px;
  border-radius: 999px;
  background: linear-gradient(120deg, #1E6FFF, #2E9BFF);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  box-shadow: 0 0 14px rgba(30,111,255,0.35);
  transition: box-shadow .25s ease, background .25s ease, transform .2s ease;
}

.search-form button:hover {
  background: #3B8CFF;
  box-shadow: 0 0 20px rgba(37,214,233,0.35);
}

.search-form button:active {
  transform: scale(0.97);
}

.search-form button span {
  display: inline-block;
}

.main-nav {
  margin-left: auto;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-links a {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 10px 14px;
  border-radius: 999px;
  color: #B8C7E0;
  font-size: 15px;
  font-weight: 500;
  transition: background .22s ease, color .22s ease, box-shadow .22s ease;
}

.nav-links a i {
  font-size: 14px;
  color: var(--muted);
}

.nav-links a:hover {
  color: #E8F0FF;
  background: rgba(255,255,255,0.06);
}

.nav-links a.current {
  color: #fff;
  background: linear-gradient(135deg, rgba(30,111,255,0.28), rgba(37,214,233,0.2));
  box-shadow: inset 0 0 0 1px rgba(37,214,233,0.28);
}

.nav-links a.current i {
  color: var(--cyan);
}

.header-cta {
  margin-left: 6px;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 44px;
  padding: 0 22px;
  border-radius: 999px;
  background: linear-gradient(120deg, #1E6FFF, #25D6E9);
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  box-shadow: 0 0 18px rgba(37, 214, 233, 0.22);
  transition: box-shadow .25s, transform .2s, filter .25s;
}

.btn-primary:hover {
  color: #fff;
  filter: brightness(1.08);
  box-shadow: 0 6px 30px rgba(37,214,233,0.4);
  transform: translateY(-2px);
}

.btn-primary:active {
  transform: scale(0.98);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
  color: var(--h1);
  font-size: 18px;
  align-items: center;
  justify-content: center;
}

button:focus-visible, a:focus-visible, input:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

/* ---- Hero ---- */
.cat-hero {
  background:
    linear-gradient(180deg, rgba(11, 14, 38, 0.86), rgba(15, 24, 56, 0.98)),
    url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  border-bottom: 1px solid var(--line);
  padding: 84px 0 68px;
  position: relative;
  overflow: hidden;
}

.cat-hero::after {
  content: "";
  position: absolute;
  width: 600px;
  height: 300px;
  right: -180px;
  top: -120px;
  background: radial-gradient(circle, rgba(37,214,233,0.22), transparent 70%);
  pointer-events: none;
}

.cat-kicker {
  display: inline-flex;
  gap: 8px;
  align-items: center;
  padding: 6px 14px;
  border-radius: 999px;
  background: rgba(255,255,255,0.07);
  border: 1px solid var(--glass-border);
  color: #A9D6FF;
  font-size: 13px;
  letter-spacing: 0.4px;
  margin-bottom: 22px;
  backdrop-filter: blur(6px);
}

.cat-hero h1 {
  color: var(--h1);
  font-size: clamp(32px, 5.2vw, 52px);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 22px;
  max-width: 900px;
  letter-spacing: 1px;
}

.cat-hero h1 span {
  display: block;
  font-size: clamp(18px, 2.4vw, 26px);
  font-weight: 500;
  margin-top: 16px;
  color: #A9CDFF;
}

.cat-hero p.lead {
  max-width: 820px;
  color: var(--text);
  font-size: clamp(15px, 1.8vw, 18px);
  line-height: 1.9;
  margin-bottom: 26px;
}

.hero-tags {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 34px;
}

.tag-chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  height: 34px;
  padding: 0 14px;
  border-radius: 999px;
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--glass-border);
  font-size: 13px;
  color: #BCC9E3;
}

.tag-chip i {
  color: var(--cyan);
  font-size: 12px;
}

.cat-hero-nav {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
}

.btn-solid {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  height: 48px;
  padding: 0 25px;
  border-radius: 999px;
  background: #1E6FFF;
  color: #fff;
  font-weight: 700;
  font-size: 15px;
  box-shadow: 0 0 24px rgba(30,111,255,0.3);
}

.btn-solid:hover {
  background: #3B8CFF;
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(37,214,233,0.3);
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  height: 48px;
  padding: 0 25px;
  border-radius: 999px;
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.18);
  color: #E3ECFF;
  font-size: 15px;
  font-weight: 600;
  backdrop-filter: blur(8px);
}

.btn-ghost:hover {
  background: rgba(255,255,255,0.12);
  border-color: rgba(255,255,255,0.3);
  color: #fff;
  transform: translateY(-2px);
}

/* ---- Quick rail ---- */
.quick-index {
  padding: 32px 0 44px;
  position: relative;
  z-index: 3;
}

.quick-index .container {
  display: flex;
  gap: 12px;
  overflow-x: auto;
  padding-bottom: 8px;
  scrollbar-width: thin;
  scrollbar-color: rgba(255,255,255,0.16) transparent;
}

.quick-index .container::-webkit-scrollbar {
  height: 5px;
}

.quick-index .container::-webkit-scrollbar-thumb {
  background: rgba(255,255,255,0.16);
  border-radius: 999px;
}

.quick-link {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  height: 44px;
  padding: 0 20px;
  white-space: nowrap;
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  border-radius: 999px;
  color: var(--text);
  font-size: 14px;
  font-weight: 500;
  backdrop-filter: blur(8px);
  transition: all .25s ease;
}

.quick-link:hover {
  color: var(--h1);
  border-color: rgba(37,214,233,0.4);
  box-shadow: 0 0 16px rgba(37,214,233,0.08);
  transform: translateY(-2px);
}

.quick-link i {
  color: var(--cyan);
}

/* ---- Documentation layout ---- */
.doc-layout {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  gap: 52px;
  align-items: start;
  padding: 28px 0 90px;
}

.doc-aside {
  position: sticky;
  top: 110px;
  border-radius: var(--radius-card);
  overflow: hidden;
  background: var(--bg-card-solid);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(12px);
}

.aside-head {
  padding: 22px 20px 16px;
  border-bottom: 1px solid var(--line);
}

.aside-head p {
  font-size: 12px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 1.2px;
  margin-bottom: 5px;
}

.aside-head h2 {
  font-size: 18px;
  color: var(--h1);
  font-weight: 700;
}

.aside-nav {
  padding: 12px;
}

.aside-nav a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 11px 14px;
  border-radius: 14px;
  color: var(--text);
  font-size: 14px;
  transition: all .2s;
  margin-bottom: 4px;
}

.aside-nav a i {
  color: var(--muted);
  font-size: 12px;
  transition: transform .2s, color .2s;
}

.aside-nav a:hover {
  background: rgba(255,255,255,0.06);
  color: #fff;
}

.aside-nav a:hover i {
  color: var(--cyan);
  transform: translateX(4px);
}

.aside-note {
  margin: 14px 16px 18px;
  border-radius: 16px;
  padding: 15px 16px;
  background: rgba(30,111,255,0.12);
  border: 1px solid rgba(37,214,233,0.22);
  font-size: 13px;
  color: #B9D0EF;
  line-height: 1.7;
}

.aside-note i {
  color: var(--cyan);
  margin-right: 6px;
}

.doc-article {
  max-width: 100%;
  min-width: 0;
}

.doc-section {
  background: linear-gradient(180deg, rgba(20,32,70,0.6), rgba(14,23,53,0.5));
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 34px 34px 38px;
  margin-bottom: 44px;
  position: relative;
}

.doc-section::before {
  content: "";
  position: absolute;
  left: 0;
  top: 32px;
  bottom: 32px;
  width: 3px;
  border-radius: 6px;
  background: linear-gradient(180deg, var(--brand), var(--cyan));
  opacity: 0.6;
}

.sec-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  letter-spacing: 1px;
  color: var(--cyan);
  font-weight: 600;
  margin-bottom: 12px;
}

.sec-kicker i {
  font-size: 13px;
}

.doc-section h2 {
  color: var(--h1);
  font-size: clamp(21px, 2.4vw, 28px);
  line-height: 1.35;
  margin-bottom: 14px;
  font-weight: 700;
}

.doc-section > p.desc {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.8;
  margin-bottom: 28px;
  max-width: 720px;
}

.split-grid {
  display: grid;
  grid-template-columns: 1.25fr 1fr;
  gap: 20px;
}

.split-grid > .wide-block {
  grid-row: span 2;
}

.content-card {
  background: rgba(255,255,255,0.045);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 18px;
  padding: 24px;
  transition: transform .25s ease, background .25s ease, border-color .25s ease;
}

.content-card:hover {
  transform: translateY(-4px);
  background: rgba(255,255,255,0.06);
  border-color: rgba(255,255,255,0.2);
}

.content-card h3 {
  color: var(--h1);
  font-size: 18px;
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 9px;
}

.content-card h3 i {
  color: var(--cyan);
}

.content-card p {
  font-size: 14px;
  color: var(--text);
  line-height: 1.85;
}

.content-card ul {
  display: grid;
  gap: 9px;
  margin-top: 14px;
}

.content-card ul li {
  position: relative;
  padding-left: 21px;
  font-size: 14px;
  color: #C8D6ED;
}

.content-card ul li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 10px;
  width: 7px;
  height: 7px;
  background: var(--cyan);
  border-radius: 3px;
  opacity: 0.6;
}

.step-index {
  display: inline-grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: rgba(37,214,233,0.13);
  color: var(--cyan);
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 12px;
}

.check-badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 3px 11px;
  border-radius: 999px;
  background: rgba(43,213,118,0.12);
  color: #8FEAB5;
  font-size: 12px;
}

.mini-tip {
  background: rgba(255,175,69,0.08);
  border: 1px solid rgba(255,175,69,0.2);
  border-radius: 14px;
  padding: 12px 16px;
  font-size: 13px;
  color: #FFD9A0;
  margin-top: 14px;
}

.media-card {
  border-radius: 18px;
  overflow: hidden;
  border: 1px solid var(--glass-border);
  background: rgba(255,255,255,0.04);
  height: 100%;
  display: flex;
  flex-direction: column;
}

.media-cover {
  width: 100%;
  height: 210px;
  object-fit: cover;
  transition: transform .4s ease;
}

.media-card:hover .media-cover {
  transform: scale(1.03);
}

.media-body {
  padding: 20px 22px 24px;
  flex: 1;
}

.media-body h3 {
  color: var(--h1);
  font-size: 18px;
  margin-bottom: 10px;
}

.media-body p {
  font-size: 14px;
  color: var(--text);
  line-height: 1.8;
  margin-bottom: 14px;
}

.media-body .btn-text {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--cyan);
  font-size: 14px;
  font-weight: 600;
}

.media-body .btn-text i {
  transition: transform .25s ease;
}

.media-body .btn-text:hover i {
  transform: translateX(6px);
}

/* ---- error cards ---- */
.error-list {
  display: grid;
  gap: 18px;
}

.error-card {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 18px;
  padding: 20px 22px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--line);
  border-radius: 18px;
  transition: border-color .25s, background .25s;
}

.error-card:hover {
  background: rgba(255,255,255,0.06);
  border-color: rgba(37,214,233,0.25);
}

.error-icon {
  display: grid;
  place-items: center;
  width: 50px;
  height: 50px;
  border-radius: 16px;
  background: rgba(30,111,255,0.14);
  color: #70B6FF;
  font-size: 22px;
}

.error-card h3 {
  color: var(--h1);
  font-size: 16px;
  margin-bottom: 7px;
}

.error-card p {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.82;
}

/* ---- cta submit ---- */
.assist-cta {
  margin-bottom: 90px;
}

.assist-box {
  position: relative;
  border-radius: 28px;
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(30,111,255,0.18), rgba(20,32,65,0.92) 46%),
    url("/assets/images/backpic/back-1.webp") center/cover;
  padding: 52px clamp(22px, 5vw, 74px);
  border: 1px solid rgba(255,255,255,0.12);
}

.assist-box::before {
  content: "";
  position: absolute;
  width: 430px;
  height: 430px;
  top: -220px;
  right: -100px;
  background: radial-gradient(circle, rgba(37,214,233,0.28), transparent 68%);
  pointer-events: none;
}

.assist-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.9fr;
  gap: 56px;
  position: relative;
  z-index: 2;
  align-items: center;
}

.assist-box h2 {
  color: var(--h1);
  font-size: clamp(22px, 3vw, 32px);
  font-weight: 700;
  line-height: 1.35;
  margin-bottom: 12px;
}

.assist-box p {
  color: #C4D5F0;
  font-size: 15px;
  max-width: 480px;
  line-height: 1.9;
}

.contact-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
}

.contact-tags span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border-radius: 999px;
  background: rgba(255,255,255,0.08);
  font-size: 13px;
  color: #B9CBF0;
}

.contact-tags i {
  color: var(--cyan);
}

.assist-form {
  background: rgba(13, 19, 45, 0.78);
  border: 1px solid rgba(255,255,255,0.16);
  border-radius: 24px;
  padding: 28px 26px;
  backdrop-filter: blur(14px);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.3);
}

.assist-form label {
  display: block;
  color: #D6E2FA;
  font-size: 13px;
  margin: 14px 0 7px;
  letter-spacing: 0.4px;
}

.assist-form label .optional {
  color: #6D82A7;
}

.assist-form input {
  width: 100%;
  height: 48px;
  padding: 0 16px;
  background: rgba(255,255,255,0.08);
  border: 1px solid #3E4E78;
  border-radius: 14px;
  color: var(--h1);
  outline: none;
  transition: border .2s, box-shadow .2s;
}

.assist-form input:focus {
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px rgba(37,214,233,0.12);
}

.assist-form input.is-invalid {
  border-color: var(--danger);
}

.assist-form input.is-valid {
  border-color: var(--success);
}

.form-error-msg {
  display: none;
  color: var(--danger);
  font-size: 13px;
  margin-top: 6px;
}

.is-invalid + .form-error-msg {
  display: block;
}

.form-success-msg {
  display: none;
  margin-top: 12px;
  background: rgba(43,213,118,0.1);
  border: 1px solid rgba(43,213,118,0.2);
  border-radius: 12px;
  padding: 12px 14px;
  color: #7EE9A5;
  font-size: 14px;
  align-items: flex-start;
  gap: 8px;
}

.form-success-msg.show {
  display: flex;
}

.assist-form .btn-primary {
  width: 100%;
  justify-content: center;
  margin-top: 18px;
  height: 52px;
}

.assist-note {
  color: #7E91B3;
  font-size: 12px;
  margin-top: 12px;
  line-height: 1.7;
}

/* ---- footer ---- */
.site-footer {
  border-top: 1px solid rgba(255,255,255,0.07);
  background: rgba(7, 11, 28, 0.96);
  padding: 68px 0 30px;
}

.footer-main {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) 0.9fr 1.1fr;
  gap: 52px;
  margin-bottom: 52px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.footer-brand-desc {
  color: #8A9CC0;
  font-size: 14px;
  line-height: 1.9;
  max-width: 380px;
}

.footer-heading {
  color: #E4EEFF;
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 13px;
  position: relative;
  padding-bottom: 10px;
}

.footer-heading::after {
  content: "";
  display: block;
  width: 24px;
  height: 2px;
  border-radius: 4px;
  background: linear-gradient(90deg, var(--brand), var(--cyan));
  margin-top: 9px;
}

.footer-nav {
  display: grid;
  gap: 10px;
}

.footer-nav a {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: #8CA0C6;
  font-size: 14px;
  transition: color .2s, padding-left .2s;
}

.footer-nav a i {
  color: #4E648F;
  font-size: 10px;
  transition: color .2s;
}

.footer-nav a:hover {
  color: var(--cyan);
  padding-left: 5px;
}

.footer-tech p {
  color: #8CA0C6;
  font-size: 13px;
  line-height: 1.9;
  margin-bottom: 16px;
}

.status-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 13px;
  border-radius: 999px;
  background: rgba(43,213,118,0.1);
  border: 1px solid rgba(43,213,118,0.18);
  color: #8FF0B2;
  font-size: 13px;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding-top: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  color: #607596;
  font-size: 13px;
}

/* ---- responsive ---- */
@media (max-width: 1199px) {
  .header-inner {
    grid-template-columns: auto minmax(200px, 1fr) auto;
  }
  .header-cta {
    display: none;
  }
  .main-nav {
    margin-left: 0;
  }
  .nav-links a {
    padding: 9px 10px;
    font-size: 14px;
  }
  .search-form {
    max-width: 420px;
  }
  .logo-name {
    font-size: 17px;
  }
  .doc-layout {
    grid-template-columns: 240px minmax(0, 1fr);
    gap: 32px;
  }
  .split-grid {
    grid-template-columns: 1fr;
  }
  .split-grid > .wide-block {
    grid-row: auto;
  }
  .assist-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }
}

@media (max-width: 1024px) {
  .site-header {
    position: relative;
  }
  .header-inner {
    grid-template-columns: 1fr auto;
    gap: 10px;
    padding: 12px 0;
  }
  .search-form {
    grid-column: 1 / -1;
    grid-row: 2;
    order: 3;
    max-width: 100%;
    margin: 0;
  }
  .main-nav {
    grid-column: 1 / -1;
    grid-row: 3;
    max-height: 0;
    overflow: hidden;
    transition: max-height .35s ease;
  }
  .menu-open .main-nav {
    max-height: 260px;
  }
  .nav-links {
    flex-direction: column;
    gap: 2px;
    padding: 10px 0 12px;
    border-top: 1px solid rgba(255,255,255,0.06);
  }
  .nav-links a {
    width: 100%;
    padding: 12px 16px;
    border-radius: 12px;
  }
  .nav-toggle {
    display: inline-flex;
  }
  .doc-layout {
    grid-template-columns: 1fr;
    gap: 0;
  }
  .doc-aside {
    position: static;
    margin-bottom: 28px;
  }
  .aside-nav {
    display: flex;
    gap: 8px;
    overflow-x: auto;
  }
  .aside-nav a {
    white-space: nowrap;
    flex-shrink: 0;
    padding: 8px 14px;
    margin-bottom: 0;
  }
  .aside-note {
    display: none;
  }
  .footer-main {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }
}

@media (max-width: 767px) {
  .container {
    width: 92%;
  }
  .header-cta {
    display: none;
  }
  .logo-name {
    white-space: normal;
    line-height: 1.2;
  }
  .cat-hero {
    padding: 54px 0 44px;
  }
  .doc-section {
    padding: 24px 20px 26px;
    margin-bottom: 30px;
  }
  .content-card {
    padding: 20px;
  }
  .error-card {
    grid-template-columns: 44px 1fr;
    gap: 13px;
    padding: 16px;
  }
  .error-icon {
    width: 40px;
    height: 40px;
    font-size: 18px;
  }
  .footer-main {
    grid-template-columns: 1fr;
    gap: 32px;
    margin-bottom: 32px;
  }
  .footer-bottom {
    flex-direction: column;
    justify-content: flex-start;
    align-items: flex-start;
  }
  .assist-box {
    padding: 34px 18px;
  }
  .assist-form {
    padding: 22px 18px;
  }
  .search-form button span {
    display: none;
  }
  .search-form button {
    width: 40px;
    padding: 0;
    justify-content: center;
    border-radius: 40px;
  }
  .cat-hero-nav .btn-solid,
  .cat-hero-nav .btn-ghost {
    width: 100%;
    justify-content: center;
  }
}

/* roulang page: category2 */
:root{
  --bg-deep:#0B1026;
  --bg-panel:#111B38;
  --bg-soft:#151F3D;
  --brand:#1E6FFF;
  --brand-light:#4A8CFF;
  --cyan:#25D6E9;
  --amber:#FFAF45;
  --danger:#FF6B6B;
  --success:#2FDF8F;
  --white:#F2F7FF;
  --body:#C6D3E8;
  --weak:#7E91B3;
  --border:rgba(255,255,255,.14);
  --glass:rgba(255,255,255,.07);
  --glass-strong:rgba(255,255,255,.1);
  --r-lg:24px;
  --r-md:18px;
  --r-sm:14px;
  --r-full:999px;
  --shadow:0 10px 30px rgba(0,0,0,.25);
  --shadow-hover:0 16px 40px rgba(0,0,0,.35);
  --ease:cubic-bezier(.2,.7,.2,1);
  --container:1280px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:110px}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
  background:
    radial-gradient(900px 420px at 88% -80px,rgba(37,214,233,.14),transparent 60%),
    radial-gradient(1000px 520px at -10% 15%,rgba(30,111,255,.13),transparent 60%),
    linear-gradient(180deg,#0B1026 0%,#0D1530 52%,#0B1026 100%);
  background-color:var(--bg-deep);
  color:var(--body);
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:-1;
  pointer-events:none;
  opacity:.36;
  background-image:
    radial-gradient(rgba(255,255,255,.5) .5px,transparent .6px),
    radial-gradient(rgba(37,214,233,.5) .5px,transparent .6px);
  background-position:0 0, 7px 7px;
  background-size:14px 14px,14px 14px;
  mask-image:linear-gradient(to bottom,rgba(0,0,0,.8),transparent 80%);
  -webkit-mask-image:linear-gradient(to bottom,rgba(0,0,0,.8),transparent 80%);
}
a{text-decoration:none;color:inherit;transition:.3s var(--ease)}
img{max-width:100%;display:block}
button{font:inherit;border:none;background:none;cursor:pointer}
input,select,textarea{font:inherit}
input:focus,select:focus,textarea:focus,button:focus,a:focus{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}
h1,h2,h3,h4{color:var(--white);line-height:1.28;font-weight:700}
ul,ol{list-style:none}
i,em{font-style:normal}
.container{
  width:min(var(--container),92%);
  margin-inline:auto;
}
.glass-card{
  background:var(--glass);
  border:1px solid rgba(255,255,255,.16);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow), inset 0 1px 0 rgba(255,255,255,.06);
}
.site-header{
  position:sticky;
  top:0;
  z-index:120;
  background:rgba(9,13,33,.62);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(255,255,255,.08);
  transition:background .35s var(--ease),box-shadow .35s var(--ease);
}
.site-header.scrolled{
  background:rgba(8,12,28,.88);
  box-shadow:0 10px 32px rgba(0,0,0,.25);
}
.header-inner{
  min-height:76px;
  display:grid;
  grid-template-columns:auto minmax(260px,1fr) auto auto;
  align-items:center;
  gap:22px;
  padding:14px 0;
}
.logo{
  display:inline-flex;
  align-items:center;
  gap:11px;
  flex:0 0 auto;
}
.logo-mark{
  width:44px;
  height:44px;
  display:grid;
  place-items:center;
  border-radius:14px;
  font-size:22px;
  font-weight:850;
  color:#fff;
  background:linear-gradient(145deg,#1E6FFF,#25D6E9);
  box-shadow:0 6px 20px rgba(37,214,233,.28), inset 0 1px 0 rgba(255,255,255,.35);
}
.logo-name{
  font-size:22px;
  font-weight:800;
  color:var(--white);
  letter-spacing:.02em;
  white-space:nowrap;
}
.logo-name span{
  color:var(--cyan);
  margin-left:3px;
}
.search-form{
  position:relative;
  width:100%;
  max-width:580px;
  margin-inline:auto;
}
.search-form .search-icon{
  position:absolute;
  left:18px;
  top:50%;
  transform:translateY(-50%);
  color:var(--weak);
  font-size:15px;
  pointer-events:none;
}
.search-form input[type="search"]{
  width:100%;
  height:48px;
  padding:0 128px 0 48px;
  border-radius:var(--r-full);
  background:rgba(255,255,255,.07);
  border:1px solid rgba(255,255,255,.14);
  color:var(--white);
  font-size:14px;
  transition:border-color .3s var(--ease),box-shadow .3s var(--ease),background .3s var(--ease);
}
.search-form input[type="search"]::placeholder{
  color:var(--weak);
}
.search-form input[type="search"]:focus{
  outline:none;
  background:rgba(255,255,255,.09);
  border-color:rgba(37,214,233,.8);
  box-shadow:0 0 0 3px rgba(37,214,233,.12);
}
.search-form button{
  position:absolute;
  right:5px;
  top:5px;
  bottom:5px;
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:0 20px;
  border-radius:var(--r-full);
  background:linear-gradient(145deg,#1E6FFF,#1686fb);
  color:#fff;
  font-size:14px;
  font-weight:600;
  box-shadow:0 4px 18px rgba(30,111,255,.35);
  transition:.3s var(--ease);
}
.search-form button:hover{
  box-shadow:0 6px 24px rgba(37,214,233,.45);
  transform:translateY(-1px);
}
.search-form button:active{
  transform:translateY(0) scale(.97);
}
.main-nav{
  display:flex;
  align-items:center;
  justify-content:flex-end;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:6px;
}
.nav-links a{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:10px 16px;
  border-radius:var(--r-full);
  color:var(--body);
  font-size:15px;
  font-weight:550;
  border:1px solid transparent;
  transition:.3s var(--ease);
}
.nav-links a i{
  font-size:13px;
  color:var(--weak);
  transition:.3s var(--ease);
}
.nav-links a:hover{
  color:var(--white);
  background:rgba(255,255,255,.06);
  border-color:rgba(255,255,255,.08);
}
.nav-links a.current{
  color:#fff;
  background:linear-gradient(145deg,rgba(30,111,255,.22),rgba(37,214,233,.1));
  border-color:rgba(37,214,233,.35);
  box-shadow:0 0 24px rgba(37,214,233,.08);
}
.nav-links a.current i{
  color:var(--cyan);
}
.header-cta{
  display:flex;
  align-items:center;
}
.btn-primary{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:9px;
  min-height:46px;
  padding:0 24px;
  border-radius:var(--r-full);
  background:linear-gradient(145deg,#1E6FFF,#12A7F5);
  color:#fff;
  font-weight:600;
  font-size:15px;
  box-shadow:0 6px 22px rgba(30,111,255,.3);
  transition:.3s var(--ease);
  border:1px solid rgba(255,255,255,.18);
}
.btn-primary:hover{
  background:linear-gradient(145deg,#2B7BFF,#28D2F6);
  box-shadow:0 8px 30px rgba(37,214,233,.42);
  transform:translateY(-1px);
}
.btn-primary:active{
  transform:translateY(1px) scale(.98);
}
.btn-ghost{
  display:inline-flex;
  align-items:center;
  gap:9px;
  min-height:46px;
  padding:0 24px;
  border-radius:var(--r-full);
  color:var(--body);
  font-weight:600;
  background:rgba(255,255,255,.07);
  border:1px solid rgba(255,255,255,.18);
  backdrop-filter:blur(10px);
  transition:.3s var(--ease);
}
.btn-ghost:hover{
  color:var(--white);
  border-color:rgba(37,214,233,.55);
  background:rgba(37,214,233,.1);
  transform:translateY(-1px);
}
.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  align-items:center;
  justify-content:center;
  border-radius:14px;
  color:var(--white);
  font-size:18px;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.14);
  transition:.3s var(--ease);
}
.nav-toggle:hover{
  border-color:var(--cyan);
  background:rgba(37,214,233,.1);
}
.category-hero{
  position:relative;
  overflow:hidden;
  background:
    radial-gradient(720px 360px at 85% -10%,rgba(37,214,233,.18),transparent 62%),
    radial-gradient(620px 300px at 12% 10%,rgba(30,111,255,.16),transparent 55%),
    linear-gradient(135deg,rgba(9,13,31,.95),rgba(12,18,45,.78)),
    url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.category-hero::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background:linear-gradient(180deg,transparent 40%,rgba(11,16,38,.5) 100%);
}
.category-hero .container{
  position:relative;
  z-index:2;
  padding:96px 0 90px;
}
.crumbs{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:13px;
  color:var(--weak);
  margin-bottom:24px;
}
.crumbs a{
  color:var(--weak);
}
.crumbs a:hover{
  color:var(--cyan);
}
.crumbs i{
  font-size:11px;
  color:rgba(255,255,255,.35);
}
.crumbs strong{
  color:var(--body);
  font-weight:600;
}
.hero-kicker{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 18px;
  margin-bottom:20px;
  border-radius:var(--r-full);
  background:rgba(37,214,233,.12);
  border:1px solid rgba(37,214,233,.35);
  color:var(--cyan);
  font-size:14px;
  font-weight:600;
  backdrop-filter:blur(8px);
}
.hero-title{
  font-size:clamp(32px,5vw,48px);
  font-weight:800;
  letter-spacing:-.02em;
  max-width:760px;
  margin-bottom:20px;
  text-shadow:0 8px 30px rgba(0,0,0,.35);
}
.hero-title em{
  background:linear-gradient(120deg,#25D6E9,#4A8CFF);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
  font-style:normal;
}
.hero-sub{
  max-width:720px;
  font-size:17px;
  line-height:1.9;
  color:var(--body);
  margin-bottom:30px;
}
.hero-act{
  display:flex;
  flex-wrap:wrap;
  gap:16px;
}
.hero-mini-note{
  max-width:620px;
  margin-top:24px;
  padding:12px 0 0;
  font-size:13px;
  color:var(--weak);
  border-top:1px dashed rgba(255,255,255,.14);
}
.hero-mini-note i{
  color:var(--amber);
  margin-right:6px;
}
.status-strip{
  background:rgba(255,255,255,.03);
  border-bottom:1px solid rgba(255,255,255,.07);
  padding:18px 0;
}
.status-wrap{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:18px;
}
.status-item{
  display:flex;
  align-items:flex-start;
  gap:13px;
}
.status-dot{
  width:10px;
  height:10px;
  border-radius:50%;
  margin-top:7px;
  position:relative;
  flex:0 0 auto;
}
.status-dot.cyan{
  background:var(--cyan);
  box-shadow:0 0 0 4px rgba(37,214,233,.15),0 0 14px rgba(37,214,233,.6);
}
.status-dot.amber{
  background:var(--amber);
  box-shadow:0 0 0 4px rgba(255,175,69,.12),0 0 14px rgba(255,175,69,.45);
}
.status-dot.green{
  background:var(--success);
  box-shadow:0 0 0 4px rgba(47,223,143,.12),0 0 14px rgba(47,223,143,.4);
}
.status-item strong{
  display:block;
  color:var(--white);
  font-size:14px;
  font-weight:650;
  line-height:1.6;
}
.status-item p{
  font-size:13px;
  color:var(--weak);
  line-height:1.6;
}
.support-main{
  padding:88px 0 10px;
  background:
    radial-gradient(800px 440px at 95% 2%,rgba(30,111,255,.05),transparent 60%),
    transparent;
}
.guide-grid{
  display:grid;
  grid-template-columns:260px minmax(0,1fr);
  gap:50px;
  align-items:start;
}
.anchor-nav{
  position:sticky;
  top:110px;
  padding:27px 22px 25px;
  border-radius:22px;
  background:linear-gradient(155deg,rgba(255,255,255,.09),rgba(255,255,255,.03));
  border:1px solid var(--border);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow), inset 0 1px 0 rgba(255,255,255,.08);
}
.anchor-title{
  display:flex;
  align-items:center;
  gap:9px;
  font-size:13px;
  letter-spacing:.14em;
  color:var(--weak);
  font-weight:600;
  text-transform:uppercase;
  margin-bottom:18px;
}
.anchor-title i{
  color:var(--cyan);
  font-size:15px;
}
.anchor-list li + li{
  margin-top:6px;
}
.anchor-list a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:10px 14px;
  font-size:14px;
  font-weight:550;
  border-radius:14px;
  color:var(--body);
  border:1px solid transparent;
  transition:.3s var(--ease);
}
.anchor-list a i:last-child{
  color:var(--weak);
  font-size:12px;
  opacity:0;
  transform:translateX(-5px);
  transition:.3s var(--ease);
}
.anchor-list a:hover{
  color:var(--white);
  background:rgba(255,255,255,.06);
}
.anchor-list a:hover i:last-child{
  opacity:1;
  transform:translateX(0);
  color:var(--cyan);
}
.anchor-list a.current-anchor{
  color:#fff;
  background:linear-gradient(145deg,rgba(30,111,255,.2),rgba(37,214,233,.06));
  border-color:rgba(37,214,233,.22);
}
.anchor-note{
  margin-top:20px;
  padding:13px 14px;
  border-radius:16px;
  background:rgba(255,175,69,.08);
  border:1px solid rgba(255,175,69,.15);
  font-size:13px;
  color:var(--weak);
  line-height:1.7;
}
.anchor-note i{
  color:var(--amber);
  margin-right:6px;
}
.guide-content{
  min-width:0;
  display:flex;
  flex-direction:column;
  gap:70px;
}
.content-section{
  scroll-margin-top:110px;
}
.section-head{
  display:flex;
  align-items:center;
  gap:16px;
  margin-bottom:24px;
}
.sec-num{
  flex:0 0 auto;
  min-width:44px;
  height:44px;
  display:grid;
  place-items:center;
  border-radius:14px;
  background:linear-gradient(145deg,rgba(30,111,255,.25),rgba(37,214,233,.08));
  border:1px solid rgba(37,214,233,.22);
  color:var(--cyan);
  font-weight:800;
  font-size:15px;
  box-shadow:0 0 20px rgba(37,214,233,.08);
}
.section-head h2{
  font-size:clamp(24px,2.6vw,32px);
  font-weight:800;
}
.section-lead{
  max-width:720px;
  color:var(--body);
  margin:-8px 0 28px 60px;
}
.category-map-card{
  padding:8px 30px 30px;
  border-radius:var(--r-lg);
  background:
    linear-gradient(140deg,rgba(255,255,255,.08),rgba(255,255,255,.03)),
    rgba(16,25,52,.68);
  border:1px solid var(--border);
  box-shadow:var(--shadow), inset 0 1px 0 rgba(255,255,255,.05);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  overflow:hidden;
}
.map-mini-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:7px 14px;
  margin-bottom:12px;
  border-radius:var(--r-full);
  background:rgba(37,214,233,.14);
  color:var(--cyan);
  font-size:12px;
  font-weight:600;
  border:1px solid rgba(37,214,233,.25);
}
.map-list{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:12px;
  margin-top:8px;
}
.map-item{
  position:relative;
  display:flex;
  align-items:flex-start;
  gap:13px;
  padding:17px;
  border-radius:18px;
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.08);
  transition:.3s var(--ease);
}
.map-item:hover{
  transform:translateY(-3px);
  background:rgba(255,255,255,.07);
  border-color:rgba(37,214,233,.25);
}
.map-item-icon{
  width:38px;
  height:38px;
  flex:0 0 auto;
  display:grid;
  place-items:center;
  border-radius:12px;
  background:linear-gradient(145deg,rgba(255,255,255,.1),rgba(255,255,255,.04));
  border:1px solid rgba(255,255,255,.14);
  color:var(--cyan);
  font-size:15px;
}
.map-item .icon-orange{
  color:var(--amber);
}
.map-item strong{
  display:block;
  font-size:15px;
  color:var(--white);
  line-height:1.5;
  margin-bottom:4px;
}
.map-item p{
  font-size:13px;
  line-height:1.65;
  color:var(--weak);
}
.mini-helper{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:16px;
  margin-top:18px;
}
.info-tip{
  display:flex;
  align-items:center;
  gap:13px;
  padding:16px 18px;
  border-radius:18px;
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.10);
}
.info-tip i{
  color:var(--amber);
  font-size:18px;
  flex:0 0 auto;
}
.info-tip span{
  font-size:14px;
  color:var(--body);
}
.info-tip span strong{
  color:var(--white);
  font-weight:600;
}
.steps-list{
  margin-top:6px;
}
.step-item{
  position:relative;
  display:grid;
  grid-template-columns:54px 1fr;
  gap:22px;
  padding:28px 28px 28px 36px;
  border-radius:24px;
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.09);
  transition:.3s var(--ease);
}
.step-item + .step-item{
  margin-top:16px;
}
.step-item:hover{
  background:rgba(255,255,255,.07);
  border-color:rgba(37,214,233,.22);
}
.step-item::before{
  content:"";
  position:absolute;
  left:45px;
  top:76px;
  bottom:-18px;
  width:1px;
  background:linear-gradient(to bottom,rgba(37,214,233,.4),transparent);
  pointer-events:none;
}
.step-item:last-child::before{
  display:none;
}
.step-num{
  width:54px;
  height:54px;
  display:grid;
  place-items:center;
  border-radius:18px;
  background:linear-gradient(145deg,rgba(30,111,255,.3),rgba(37,214,233,.1));
  border:1px solid rgba(37,214,233,.3);
  color:var(--cyan);
  font-weight:800;
  font-size:17px;
  box-shadow:0 0 18px rgba(37,214,233,.12);
}
.step-content h3{
  font-size:19px;
  margin-bottom:9px;
}
.step-content p{
  font-size:14px;
  line-height:1.9;
  color:var(--body);
  max-width:680px;
}
.step-content p + p{
  margin-top:8px;
}
.assist-flow{
  display:grid;
  grid-template-columns:minmax(260px,.92fr) 1.08fr;
  gap:40px;
  align-items:center;
  margin-bottom:40px;
}
.flow-media{
  border-radius:26px;
  overflow:hidden;
  border:1px solid rgba(255,255,255,.13);
  box-shadow:var(--shadow), inset 0 1px 0 rgba(255,255,255,.08);
}
.flow-media img{
  width:100%;
  height:100%;
  min-height:320px;
  object-fit:cover;
  transition:transform .8s var(--ease);
}
.flow-media:hover img{
  transform:scale(1.04);
}
.flow-steps{
  display:grid;
  gap:18px;
}
.flow-step{
  display:flex;
  align-items:flex-start;
  gap:14px;
  padding:18px;
  border-radius:18px;
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.09);
}
.flow-step:hover{
  border-color:rgba(37,214,233,.25);
}
.flow-step i{
  width:32px;
  height:32px;
  flex:0 0 auto;
  display:grid;
  place-items:center;
  border-radius:10px;
  background:rgba(37,214,233,.12);
  color:var(--cyan);
  font-size:14px;
}
.flow-step strong{
  display:block;
  font-size:15px;
  color:var(--white);
  margin-bottom:4px;
}
.flow-step p{
  font-size:13px;
  color:var(--body);
  line-height:1.7;
}
.tag-chip{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:6px 13px;
  border-radius:var(--r-full);
  background:rgba(30,111,255,.13);
  border:1px solid rgba(30,111,255,.25);
  color:#A9CDFF;
  font-size:13px;
  font-weight:550;
}
.faq-block{
  margin-top:10px;
}
.faq-item{
  border-radius:var(--r-md);
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.09);
  transition:.3s var(--ease);
}
.faq-item + .faq-item{
  margin-top:14px;
}
.faq-item[open]{
  background:rgba(255,255,255,.065);
  border-color:rgba(37,214,233,.25);
}
.faq-item summary{
  list-style:none;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:22px 26px;
  cursor:pointer;
  color:var(--white);
  font-weight:650;
  font-size:16px;
  border-radius:var(--r-md);
  transition:.3s var(--ease);
  user-select:none;
}
.faq-item summary::-webkit-details-marker{
  display:none;
}
.faq-item summary:hover{
  color:var(--cyan);
}
.faq-inner{
  display:flex;
  align-items:center;
  gap:14px;
  min-width:0;
}
.faq-inner .faq-q{
  color:var(--brand-light);
  font-weight:800;
  background:rgba(30,111,255,.16);
  min-width:30px;
  height:30px;
  display:grid;
  place-items:center;
  border-radius:10px;
  font-size:13px;
}
.faq-arrow{
  flex:0 0 auto;
  width:32px;
  height:32px;
  display:grid;
  place-items:center;
  border-radius:10px;
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.12);
  color:var(--weak);
  transition:.4s var(--ease);
}
.faq-item[open] .faq-arrow{
  transform:rotate(45deg);
  color:var(--cyan);
  border-color:rgba(37,214,233,.4);
  background:rgba(37,214,233,.12);
}
.faq-answer{
  padding:0 26px 24px 70px;
}
.faq-answer p{
  font-size:14px;
  line-height:1.95;
  color:var(--body);
}
.assist-section{
  padding:88px 0 70px;
  scroll-margin-top:90px;
  background:
    radial-gradient(700px 360px at 12% 100%,rgba(30,111,255,.1),transparent 60%),
    rgba(8,13,31,.5);
  border-top:1px solid rgba(255,255,255,.07);
}
.assist-grid{
  display:grid;
  grid-template-columns:.92fr 1.08fr;
  gap:48px;
  align-items:center;
}
.assist-intro h2{
  font-size:30px;
  font-weight:800;
  margin-bottom:16px;
}
.assist-intro h2 span{
  color:var(--cyan);
}
.assist-intro > p{
  max-width:500px;
  color:var(--body);
  margin-bottom:25px;
}
.assist-intro-list{
  display:grid;
  gap:12px;
  margin-bottom:26px;
}
.assist-intro-list li{
  display:flex;
  align-items:center;
  gap:10px;
  color:var(--body);
  font-size:14px;
}
.assist-intro-list i{
  color:var(--success);
}
.form-card{
  padding:30px;
  border-radius:26px;
}
.form-card h3{
  font-size:21px;
  margin-bottom:8px;
}
.form-card > p{
  font-size:13px;
  color:var(--weak);
  margin-bottom:24px;
}
.form-row{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:16px;
}
.field{
  display:block;
  margin-bottom:18px;
}
.field-label{
  display:block;
  font-size:14px;
  color:var(--white);
  font-weight:550;
  margin-bottom:8px;
}
.field-label span{
  color:var(--weak);
  font-weight:400;
}
.input-wrap{
  position:relative;
  display:block;
}
.input-wrap i{
  position:absolute;
  left:15px;
  top:50%;
  transform:translateY(-50%);
  color:var(--weak);
  font-size:14px;
}
.form-control{
  width:100%;
  height:48px;
  padding:0 16px 0 44px;
  border-radius:14px;
  background:rgba(255,255,255,.07);
  border:1px solid var(--border);
  color:var(--white);
  transition:.3s var(--ease);
}
textarea.form-control{
  height:auto;
  min-height:112px;
  padding:14px 16px 14px 44px;
  resize:vertical;
}
.form-control:focus{
  outline:none;
  border-color:rgba(37,214,233,.75);
  box-shadow:0 0 0 3px rgba(37,214,233,.13);
  background:rgba(255,255,255,.09);
}
.form-control::placeholder{
  color:var(--weak);
}
.field-error{
  display:none;
  margin-top:6px;
  font-size:12px;
  color:var(--danger);
  align-items:center;
  gap:6px;
}
.field.invalid .form-control{
  border-color:rgba(255,107,107,.7);
  box-shadow:0 0 0 3px rgba(255,107,107,.12);
}
.field.invalid .field-error{
  display:flex;
}
.form-submit{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:15px;
  margin-top:24px;
}
.form-submit .btn-primary{
  min-height:50px;
  padding:0 30px;
}
.form-status-success{
  display:none;
  align-items:flex-start;
  gap:10px;
  padding:14px 16px;
  border-radius:16px;
  background:rgba(47,223,143,.1);
  border:1px solid rgba(47,223,143,.3);
  color:#CBFBDF;
  font-size:13px;
  line-height:1.7;
}
.form-status-success.show{
  display:flex;
}
.form-status-success i{
  color:var(--success);
  font-size:18px;
  margin-top:2px;
}
.closing-cta{
  position:relative;
  overflow:hidden;
  padding:92px 0;
  background:
    linear-gradient(135deg,rgba(8,12,28,.92),rgba(13,22,50,.78)),
    url("/assets/images/backpic/back-1.webp") center/cover no-repeat;
  border-top:1px solid rgba(255,255,255,.06);
}
.cta-inner{
  position:relative;
  z-index:2;
  text-align:center;
  max-width:740px;
  margin:0 auto;
}
.cta-inner h2{
  font-size:clamp(26px,4vw,36px);
  font-weight:800;
  margin-bottom:18px;
}
.cta-inner p{
  font-size:16px;
  color:var(--body);
  margin-bottom:32px;
}
.cta-btns{
  display:flex;
  flex-wrap:wrap;
  gap:18px;
  justify-content:center;
  margin-bottom:24px;
}
.site-footer{
  position:relative;
  background:#080C1C;
  border-top:1px solid rgba(255,255,255,.08);
  padding:78px 0 0;
  color:var(--body);
}
.site-footer a{
  color:var(--body);
  transition:.3s var(--ease);
}
.site-footer a:hover{
  color:var(--cyan);
}
.footer-main{
  display:grid;
  grid-template-columns:1.6fr 1fr 1.3fr;
  gap:44px;
  padding-bottom:40px;
}
.footer-logo{
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:16px;
}
.footer-brand-desc{
  font-size:14px;
  color:var(--weak);
  max-width:400px;
  line-height:1.8;
}
.footer-heading{
  font-size:16px;
  color:var(--white);
  font-weight:700;
  margin-bottom:16px;
}
.footer-nav{
  display:grid;
  gap:8px;
}
.footer-nav a{
  display:inline-flex;
  align-items:center;
  gap:9px;
  padding:4px 0;
  font-size:14px;
}
.footer-nav i{
  font-size:11px;
  color:var(--weak);
}
.footer-tech p{
  font-size:13px;
  color:var(--weak);
  line-height:1.85;
  max-width:340px;
}
.status-chip{
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin-top:16px;
  padding:8px 16px;
  border-radius:999px;
  background:rgba(47,223,143,.08);
  border:1px solid rgba(47,223,143,.25);
  color:#A8F1CC;
  font-size:13px;
}
.status-chip i{
  color:var(--success);
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.07);
  padding:24px 0 30px;
  display:flex;
  justify-content:center;
  flex-wrap:wrap;
  gap:12px 30px;
  color:var(--weak);
  font-size:13px;
}
.footer-bottom span{
  display:inline-flex;
  align-items:center;
  gap:8px;
}
.space-holder{
  margin-top:30px;
}
@media (max-width:1280px){
  .header-inner{
    grid-template-columns:auto minmax(260px,1fr) auto auto;
    gap:16px;
  }
  .main-nav{
    display:none;
  }
  .nav-toggle{
    display:inline-flex;
  }
  .header-cta{
    display:none;
  }
  .header-inner{
    grid-template-columns:auto 1fr auto;
  }
  .main-nav.open{
    position:fixed;
    top:82px;
    left:0;
    right:0;
    display:block;
    padding:16px 5vw;
    background:rgba(8,12,28,.97);
    backdrop-filter:blur(20px);
    border-bottom:1px solid var(--border);
    box-shadow:0 18px 40px rgba(0,0,0,.3);
    z-index:119;
  }
  .nav-links{
    display:flex;
    flex-direction:column;
    align-items:stretch;
    gap:6px;
  }
  .nav-links a{
    padding:14px 18px;
    font-size:16px;
  }
  .nav-toggle.open{
    border-color:rgba(37,214,233,.4);
    color:var(--cyan);
  }
}
@media (max-width:1024px){
  .guide-grid{
    grid-template-columns:1fr;
    gap:44px;
  }
  .anchor-nav{
    position:static;
    top:auto;
  }
  .anchor-list{
    display:flex;
    flex-wrap:wrap;
    gap:8px;
  }
  .anchor-list li{
    margin:0;
  }
  .anchor-list a{
    gap:8px;
    padding:9px 14px;
  }
  .anchor-list a i:last-child{
    display:none;
  }
  .anchor-note{
    display:none;
  }
  .assist-grid{
    grid-template-columns:1fr;
    gap:36px;
  }
  .footer-main{
    grid-template-columns:1fr 1fr;
  }
}
@media (max-width:768px){
  .header-inner{
    gap:12px;
    min-height:68px;
    padding-top:8px;
    padding-bottom:8px;
  }
  .logo-mark{
    width:40px;
    height:40px;
    font-size:20px;
  }
  .logo-name{
    font-size:19px;
  }
  .search-form{
    order:3;
    grid-column:1 / -1;
    max-width:none;
    margin-top:2px;
  }
  .search-form button span{
    display:none;
  }
  .search-form button{
    padding:0 17px;
  }
  .main-nav.open{
    top:112px;
  }
  .category-hero .container{
    padding:60px 0 58px;
  }
  .hero-title{
    font-size:31px;
    line-height:1.25;
  }
  .hero-sub{
    font-size:15px;
  }
  .hero-act .btn-primary,
  .hero-act .btn-ghost{
    width:100%;
  }
  .status-wrap{
    grid-template-columns:1fr;
    gap:12px;
  }
  .status-item{
    padding:8px 0;
  }
  .support-main{
    padding:54px 0 10px;
  }
  .guide-content{
    gap:52px;
  }
  .section-lead{
    margin-left:0;
  }
  .section-head{
    align-items:flex-start;
  }
  .map-list{
    grid-template-columns:1fr;
  }
  .mini-helper{
    grid-template-columns:1fr;
  }
  .step-item{
    grid-template-columns:46px 1fr;
    gap:16px;
    padding:20px 18px 20px 22px;
  }
  .step-item::before{
    left:38px;
  }
  .step-num{
    width:46px;
    height:46px;
    font-size:15px;
    border-radius:14px;
  }
  .assist-flow{
    grid-template-columns:1fr;
    gap:24px;
  }
  .faq-inner{
    gap:12px;
  }
  .faq-answer{
    padding:0 20px 22px 72px;
  }
  .assist-section{
    padding:60px 0 50px;
  }
  .form-card{
    padding:22px 16px;
  }
  .form-row{
    grid-template-columns:1fr;
    gap:0;
  }
  .closing-cta{
    padding:64px 0;
  }
  .footer-main{
    grid-template-columns:1fr;
    gap:34px;
  }
  .footer-bottom{
    flex-direction:column;
    align-items:center;
    gap:8px;
  }
}
@media (max-width:480px){
  .logo-name{
    font-size:17px;
  }
  .nav-toggle{
    width:40px;
    height:40px;
  }
  .search-form input[type="search"]{
    height:44px;
    padding-left:42px;
  }
  .section-head{
    flex-wrap:wrap;
  }
  .section-head h2{
    font-size:22px;
  }
  .hero-act .btn-primary,
  .hero-act .btn-ghost{
    min-height:44px;
  }
}