/* ============================================================
   QuickQ  —— 「极光 Aurora」主题
   深空夜底 + 极光青紫粉渐变 + 浅色内容区
   招牌:流动极光绸带 SVG / bento 网格 / 横向滚动教程带 / 时间线
   ============================================================ */

:root{
  --aur:#2dd4bf;        /* 极光青 */
  --aur2:#22d3ee;       /* 天青 */
  --aur3:#a78bfa;       /* 极光紫 */
  --aur4:#f472b6;       /* 极光粉 */
  --night:#0a0e20;      /* 深空夜 */
  --night2:#101530;
  --night3:#1a2250;
  --bg:#f4f6fb;         /* 浅色内容底 */
  --ink:#161a2e;
  --muted:#5b6478;
  --line:#e0e5f1;
  --soft:#e9eefb;
  --grad:linear-gradient(120deg,#2dd4bf 0%,#22d3ee 32%,#a78bfa 68%,#f472b6 100%);
  --grad-btn:linear-gradient(120deg,#14b8a6 0%,#22d3ee 50%,#8b5cf6 100%);
  --shadow-sm:0 1px 3px rgba(16,24,48,.06);
  --shadow-lg:0 24px 55px -22px rgba(16,24,48,.30);
  --mono:ui-monospace,SFMono-Regular,Consolas,"Courier New",monospace;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  background:var(--bg);color:var(--ink);line-height:1.7;font-size:16px;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
a:hover{opacity:.82}
.wrap{max-width:1180px;margin:0 auto;padding:0 24px}
.mono{font-family:var(--mono)}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:700;
  border-radius:12px;padding:12px 24px;font-size:15px;line-height:1;cursor:pointer;border:1px solid transparent;
  transition:transform .15s ease,box-shadow .2s ease,background .2s ease}
.btn:hover{transform:translateY(-2px);opacity:1}
.btn-primary{background:var(--grad-btn);color:#fff;box-shadow:0 12px 30px -10px rgba(34,211,238,.55)}
.btn-ghost{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.22)}
.btn-ghost:hover{background:rgba(255,255,255,.16)}
.btn-outline{background:transparent;color:var(--ink);border:1px solid var(--line)}
.btn-outline:hover{border-color:var(--aur);color:#0d9488}
.btn-sm{padding:9px 16px;font-size:13.5px}
.btn-lg{padding:15px 30px;font-size:16px}

/* ---------- 通用区块 ---------- */
.section{padding:72px 0}
.section.alt{background:var(--soft)}
.sec-head{text-align:center;max-width:640px;margin:0 auto 44px}
.sec-head.left{text-align:left;margin:0 0 36px;max-width:none}
.sec-head h2{font-size:clamp(26px,3.4vw,36px);font-weight:800;letter-spacing:-.02em;margin:12px 0 10px;color:var(--ink)}
.sec-head p{color:var(--muted);font-size:16px}
.kicker{display:inline-block;font-family:var(--mono);font-size:12px;font-weight:700;letter-spacing:.14em;
  color:#0d9488;background:rgba(45,212,191,.14);border:1px solid rgba(45,212,191,.28);
  padding:5px 13px;border-radius:999px;text-transform:uppercase}

/* ---------- 顶栏 + 导航 ---------- */
.topbar{background:var(--night);color:rgba(230,240,255,.82);font-size:12.5px;padding:7px 0;font-family:var(--mono)}
.topbar a{color:#7ce7d8}
.tb-sep{color:rgba(167,139,250,.7);margin:0 8px}
.masthead{position:sticky;top:0;z-index:60;background:rgba(244,246,251,.86);backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line)}
.masthead .wrap{display:flex;align-items:center;gap:22px;height:66px}
.wordmark{display:flex;align-items:center;gap:10px}
.wm-mark{width:30px;height:30px;border-radius:8px}
.wm-text{display:flex;flex-direction:column;line-height:1.1}
.wm-name{font-weight:800;font-size:19px;letter-spacing:-.01em;color:var(--ink)}
.wm-sub{font-family:var(--mono);font-size:10px;letter-spacing:.18em;color:var(--muted);margin-top:3px}
.nav-wrap{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-wrap>a,.dd>button{font-size:14.5px;font-weight:600;color:var(--ink);padding:8px 12px;border-radius:9px;background:none;border:0;cursor:pointer}
.nav-wrap>a:hover,.dd>button:hover{background:var(--soft)}
.nav-wrap>a.on{color:#0d9488}
.dd{position:relative}
.dd-menu{display:none;position:absolute;top:100%;left:0;min-width:180px;background:#fff;border:1px solid var(--line);
  border-radius:12px;padding:8px;box-shadow:var(--shadow-lg);flex-direction:column}
.dd-menu a{font-size:14px;padding:8px 10px;border-radius:8px}
.dd-menu a:hover{background:var(--soft)}
.dd:hover .dd-menu{display:flex}
.nav-search{background:none;border:0;font-size:18px;color:var(--muted);cursor:pointer;padding:8px}
.nav-cta{margin-left:6px}
.nav-toggle{display:none;background:none;border:0;font-size:24px;cursor:pointer;color:var(--ink)}

/* ---------- 极光 hero ---------- */
.hero-aurora{position:relative;overflow:hidden;background:var(--night);color:#fff}
.aurora-bg{position:absolute;inset:0}
.aurora-bg svg{width:100%;height:100%;object-fit:cover}
.hero-aurora .wrap{position:relative;z-index:2;max-width:1180px;padding:104px 24px 120px;text-align:left}
.hero-pill{display:inline-flex;align-items:center;gap:9px;font-family:var(--mono);font-size:12.5px;letter-spacing:.14em;
  color:#bcf3ea;background:rgba(255,255,255,.06);border:1px solid rgba(45,212,191,.3);padding:7px 16px;border-radius:999px}
.hero-pill .dot{width:8px;height:8px;border-radius:50%;background:var(--grad);box-shadow:0 0 12px rgba(45,212,191,.9)}
.hero-aurora h1{font-size:clamp(40px,6.4vw,68px);font-weight:900;line-height:1.08;letter-spacing:-.02em;margin:26px 0 20px;max-width:680px}
.hero-aurora h1 .hl{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-aurora .hero-sub{max-width:560px;color:rgba(226,234,255,.82);font-size:17px;line-height:1.85}
.hero-aurora .hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin:32px 0 26px}
.hero-aurora .btn-primary{background:var(--grad-btn);color:#fff}
.hero-aurora .hero-trust{display:flex;gap:24px;flex-wrap:wrap;font-size:13px;color:rgba(226,234,255,.72);font-family:var(--mono)}
.hero-aurora .hero-trust .trust-item{display:inline-flex;align-items:center;gap:7px}
.hero-aurora .hero-trust .trust-item::before{content:"✦";color:var(--aur)}

/* 极光面板(下载页右侧) */
.aurora-sheet{position:relative;border-radius:20px;overflow:hidden;border:1px solid rgba(255,255,255,.1);
  box-shadow:0 30px 70px -30px rgba(0,0,0,.7)}
.aurora-sheet svg{width:100%;display:block}
.sheet-note{display:flex;justify-content:space-between;font-family:var(--mono);font-size:11px;letter-spacing:.1em;
  padding:12px 16px;color:rgba(226,234,255,.66);background:rgba(10,14,32,.55);border-bottom:1px solid rgba(255,255,255,.08)}

/* ---------- Bento 网格 ---------- */
.bento{display:grid;grid-template-columns:repeat(4,1fr);grid-auto-rows:168px;gap:18px}
.b-cell{position:relative;overflow:hidden;border-radius:18px;padding:24px;background:#fff;border:1px solid var(--line);
  display:flex;flex-direction:column;justify-content:flex-end;transition:transform .2s ease,box-shadow .2s ease}
.b-cell:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg)}
.b-cell.big{grid-column:span 2;grid-row:span 2;background:linear-gradient(150deg,#101530 0%,#1a2250 100%);color:#fff;border:0;justify-content:flex-end}
.b-cell.big svg{position:absolute;inset:0;width:100%;height:100%;opacity:.9}
.b-cell.big .b-inner{position:relative;z-index:2}
.b-cell.big h3{font-size:28px;font-weight:800;margin:10px 0 8px;color:#fff}
.b-cell.big p{color:rgba(226,234,255,.78);max-width:340px;font-size:14.5px}
.b-cell .ic{font-size:26px;margin-bottom:auto}
.b-cell h3{font-size:17px;font-weight:700;margin:12px 0 6px}
.b-cell p{color:var(--muted);font-size:13.5px}
.b-cell:not(.big) .ic{background:var(--soft);width:46px;height:46px;border-radius:12px;display:flex;align-items:center;justify-content:center}

/* ---------- 横向滚动教程带 ---------- */
.hscroll-section{padding:0 0 72px}
.hscroll{display:flex;gap:18px;overflow-x:auto;padding:8px 24px 22px;scroll-snap-type:x mandatory;
  -webkit-overflow-scrolling:touch;max-width:1224px;margin:0 auto}
.hscroll::-webkit-scrollbar{height:8px}
.hscroll::-webkit-scrollbar-thumb{background:linear-gradient(90deg,#2dd4bf,#a78bfa);border-radius:99px}
.h-card{scroll-snap-align:start;flex:0 0 260px;background:#fff;border:1px solid var(--line);border-radius:18px;
  padding:24px;display:flex;flex-direction:column;gap:10px}
.h-card .num{font-family:var(--mono);font-size:12px;font-weight:700;color:#0d9488;letter-spacing:.1em}
.h-card .ic{font-size:24px}
.h-card h3{font-size:16px;font-weight:700}
.h-card p{color:var(--muted);font-size:13.5px}
.h-card a.arrow{margin-top:auto;font-weight:700;font-size:13.5px;color:#0d9488}

/* ---------- 时间线 ---------- */
.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;position:relative}
.timeline::before{content:"";position:absolute;top:26px;left:6%;right:6%;height:2px;
  background:linear-gradient(90deg,#2dd4bf,#22d3ee,#a78bfa,#f472b6);opacity:.5}
.tl-item{position:relative;text-align:center;padding:0 10px}
.tl-item .node{width:52px;height:52px;border-radius:50%;margin:0 auto 14px;background:#fff;border:2px solid #2dd4bf;
  display:flex;align-items:center;justify-content:center;font-size:22px;position:relative;z-index:2;
  box-shadow:0 8px 22px -8px rgba(34,211,238,.5)}
.tl-item h3{font-size:16px;font-weight:700;margin-bottom:5px}
.tl-item p{color:var(--muted);font-size:13px;line-height:1.6}

/* ---------- 左右图文 split ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.split.rev .img{order:2}
.split h2{font-size:clamp(24px,3.2vw,32px);font-weight:800;letter-spacing:-.01em;margin:14px 0 14px}
.split p{color:var(--muted);font-size:16px;margin-bottom:22px}
.split .img{border-radius:18px;overflow:hidden;box-shadow:var(--shadow-lg)}
.split .img img{width:100%;aspect-ratio:4/3;object-fit:cover}
.split .kicker{margin-bottom:4px}

/* ---------- 卡片网格 ---------- */
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.rel-grid.single{grid-template-columns:repeat(4,1fr)}
.rel-card{display:block;background:#fff;border:1px solid var(--line);border-radius:16px;padding:24px;transition:transform .18s ease,box-shadow .18s ease}
.rel-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg)}
.rel-card .tag{display:inline-block;font-family:var(--mono);font-size:11px;font-weight:700;letter-spacing:.08em;
  color:#0d9488;background:rgba(45,212,191,.12);padding:4px 10px;border-radius:999px;margin-bottom:14px}
.rel-card h4{font-size:16px;font-weight:700;margin-bottom:6px}
.rel-card p{color:var(--muted);font-size:13.5px}

.grid5{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.grid5-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:24px 18px;text-align:center}
.grid5-card .ic{font-size:28px;margin-bottom:12px}
.grid5-card h3{font-size:15px;font-weight:700;margin-bottom:6px}
.grid5-card p{color:var(--muted);font-size:12.5px}

.sc-wall{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.sc-card{position:relative;border-radius:16px;overflow:hidden;aspect-ratio:3/4;display:block}
.sc-card img{width:100%;height:100%;object-fit:cover}
.sc-cap{position:absolute;inset:auto 0 0 0;padding:16px;background:linear-gradient(transparent,rgba(10,14,32,.88));color:#fff}
.sc-cap h4{font-size:15px;margin-bottom:2px}
.sc-cap p{font-size:12px;color:rgba(226,234,255,.8)}

.trustbar{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}
.t-item{display:inline-flex;align-items:center;gap:9px;background:#fff;border:1px solid var(--line);
  border-radius:12px;padding:12px 18px;font-weight:600;font-size:14px}
.t-item .ic{font-size:18px}

/* ---------- 全宽图 band ---------- */
.fb-band{position:relative;overflow:hidden;color:#fff;background-size:cover;background-position:center}
.fb-band .fb-veil{position:absolute;inset:0;background:linear-gradient(90deg,rgba(8,11,26,.92) 0%,rgba(8,11,26,.68) 46%,rgba(8,11,26,.22) 100%)}
.fb-band .wrap{position:relative;z-index:2;max-width:1180px;padding:96px 24px}
.fb-band .fb-kicker{font-family:var(--mono);font-size:12px;letter-spacing:.22em;color:#7ce7d8;text-transform:uppercase}
.fb-band h2{font-size:clamp(28px,4.4vw,44px);font-weight:800;line-height:1.15;margin:14px 0 18px;max-width:560px}
.fb-band ul{list-style:none;margin:0 0 28px;padding:0}
.fb-band ul li{padding:7px 0;color:rgba(226,234,255,.85);font-size:15.5px}
.fb-band ul li::before{content:"✦";color:var(--aur);margin-right:10px}
.fb-band .btn{background:#fff;color:var(--night);border:0;font-weight:700}

/* ---------- 步骤 / 表格 / 提示 / FAQ ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;counter-reset:st}
.step{background:#fff;border:1px solid var(--line);border-radius:16px;padding:24px;position:relative}
.step .n{width:40px;height:40px;border-radius:12px;background:var(--grad-btn);color:#fff;font-weight:800;
  display:flex;align-items:center;justify-content:center;font-size:16px;margin-bottom:16px}
.step h3{font-size:16px;font-weight:700;margin-bottom:6px}
.step p{color:var(--muted);font-size:13.5px}

.table-wrap{overflow-x:auto;border-radius:14px;border:1px solid var(--line);background:#fff}
table{width:100%;border-collapse:collapse;font-size:14.5px}
th,td{padding:13px 18px;text-align:left;border-bottom:1px solid var(--line)}
thead th{background:var(--soft);font-weight:700;color:var(--ink)}
tbody tr:last-child td{border-bottom:0}

.tip,.callout{border-radius:12px;padding:16px 18px;margin:18px 0;font-size:14.5px;line-height:1.7}
.tip{background:rgba(45,212,191,.1);border:1px solid rgba(45,212,191,.3);color:#0f5f57}
.callout{background:rgba(167,139,250,.1);border:1px solid rgba(167,139,250,.32);color:#4c3d8a}
blockquote{border-left:3px solid var(--aur);padding:12px 20px;margin:18px 0;background:var(--soft);
  border-radius:0 12px 12px 0;color:var(--muted);font-size:15px}

.faq-group{background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden}
.faq-group h2{font-size:17px;font-weight:700;padding:18px 22px;background:var(--soft);border-bottom:1px solid var(--line)}
.faq-group details{border-bottom:1px solid var(--line)}
.faq-group details:last-child{border-bottom:0}
.faq-group summary{cursor:pointer;padding:17px 22px;font-weight:600;font-size:15px;list-style:none;display:flex;justify-content:space-between;align-items:center}
.faq-group summary::after{content:"＋";color:#0d9488;font-weight:700}
.faq-group details[open] summary::after{content:"－"}
.faq-a{padding:0 22px 18px;color:var(--muted);font-size:14.5px}

/* ---------- CTA ---------- */
.cta-band{position:relative;overflow:hidden;border-radius:22px;padding:54px 40px;text-align:center;color:#fff;
  background:linear-gradient(135deg,#101530 0%,#1a2250 60%,#2b1b52 100%)}
.cta-band::before{content:"";position:absolute;inset:0;opacity:.5;pointer-events:none;
  background-image:radial-gradient(rgba(45,212,191,.16) 1px,transparent 1px);background-size:26px 26px}
.cta-band h2{font-size:clamp(24px,3.6vw,34px);font-weight:800;margin-bottom:10px}
.cta-band p{color:rgba(226,234,255,.8);margin-bottom:26px}
.cta-band .btn-ghost{background:#fff;color:var(--night);border:0;font-weight:700}

/* ---------- 面包屑 / 分享 / 文章 ---------- */
.breadcrumb{font-family:var(--mono);font-size:13px;color:var(--muted);margin-bottom:20px}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:#0d9488}
.breadcrumb .sep{margin:0 8px;color:#b6bdd3}
.share{display:flex;gap:10px;margin-top:30px;padding-top:22px;border-top:1px solid var(--line);flex-wrap:wrap}
.share a{font-size:13px;font-weight:600;padding:8px 14px;border:1px solid var(--line);border-radius:10px;color:var(--muted)}
.share a:hover{color:#0d9488;border-color:var(--aur)}

.page-hero{background:linear-gradient(180deg,var(--night) 0%,#1a2250 100%);color:#fff;padding:72px 0;text-align:center;position:relative;overflow:hidden}
.page-hero::before{content:"";position:absolute;inset:0;opacity:.45;
  background:radial-gradient(60% 100% at 50% -10%,rgba(45,212,191,.25),transparent 60%)}
.page-hero .wrap{position:relative;z-index:2}
.page-hero h1{font-size:clamp(30px,4.6vw,44px);font-weight:800;margin-bottom:14px}
.page-hero p{max-width:680px;margin:0 auto;color:rgba(226,234,255,.8);font-size:16px}

.article-hero{background:linear-gradient(180deg,var(--night) 0%,#1a2250 100%);color:#fff;padding:64px 0;position:relative;overflow:hidden}
.article-hero .wrap{position:relative;z-index:2}
.article-hero .breadcrumb a,.article-hero .breadcrumb{color:rgba(226,234,255,.6)}
.article-hero h1{font-size:clamp(26px,4vw,40px);font-weight:800;margin-bottom:14px;max-width:820px}
.article-hero p{max-width:760px;color:rgba(226,234,255,.82);font-size:15.5px}
.article-meta{display:flex;gap:18px;margin-top:18px;font-size:13px;color:rgba(226,234,255,.66);font-family:var(--mono)}
.article-body{padding:60px 0}
.article-layout{display:grid;grid-template-columns:220px 1fr;gap:48px;max-width:1080px;margin:0 auto;padding:0 24px}
.toc{position:sticky;top:90px;align-self:start;font-size:13.5px}
.toc h4{font-family:var(--mono);font-size:12px;letter-spacing:.12em;color:var(--muted);margin-bottom:12px}
.toc a{display:block;padding:7px 0;color:var(--muted);border-left:2px solid var(--line);padding-left:12px}
.toc a:hover{color:#0d9488;border-left-color:var(--aur)}
.prose{font-size:16px;line-height:1.9;color:#2a3048}
.prose h2{font-size:23px;font-weight:800;margin:34px 0 14px;color:var(--ink)}
.prose p{margin:0 0 16px}
.prose ul,.prose ol{margin:0 0 18px;padding-left:26px}
.prose li{margin:6px 0}
.prose img{border-radius:14px;margin:10px 0}
.prose figure{margin:22px 0}
.prose figcaption{text-align:center;font-size:13px;color:var(--muted);margin-top:8px}

.center-hero{padding:120px 24px;text-align:center}
.center-hero h1{font-size:60px;font-weight:900;margin-bottom:12px}
.center-hero p{color:var(--muted);margin-bottom:26px}

.sitemap-list h2{font-size:18px;font-weight:700;margin:28px 0 12px;color:var(--ink)}
.sitemap-list>div{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.sitemap-list a{color:var(--muted);font-size:14px;padding:6px 0;display:block}
.sitemap-list a:hover{color:#0d9488}

/* ---------- 页脚 ---------- */
.mastfoot{background:var(--night);color:rgba(226,234,255,.72);padding:60px 0 30px;position:relative;overflow:hidden}
.mastfoot::before{content:"";position:absolute;inset:auto 0 0 0;height:3px;background:var(--grad);opacity:.8}
.mf-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.08)}
.mf-brand p{margin-top:16px;font-size:14px;color:rgba(226,234,255,.6);max-width:320px;line-height:1.8}
.mf-brand .wm-name{color:#fff}
.mf-col h4{font-size:13px;font-weight:700;letter-spacing:.08em;color:#7ce7d8;margin-bottom:16px;text-transform:uppercase;font-family:var(--mono)}
.mf-col a{display:block;padding:6px 0;font-size:14px;color:rgba(226,234,255,.7)}
.mf-col a:hover{color:#fff}
.foot-line{text-align:center;padding-top:26px;font-size:13px;color:rgba(226,234,255,.5);font-family:var(--mono)}

/* ---------- 搜索 / 返回顶部 / 动效 ---------- */
.search-box{display:flex;gap:10px;max-width:560px;margin:0 auto}
.search-box input{flex:1;padding:14px 18px;border:1px solid var(--line);border-radius:12px;font-size:15px;background:#fff}
.search-box input:focus{outline:2px solid var(--aur);border-color:transparent}
.backtop{position:fixed;right:22px;bottom:22px;width:46px;height:46px;border-radius:12px;border:0;cursor:pointer;
  background:var(--grad-btn);color:#fff;font-size:18px;box-shadow:var(--shadow-lg);opacity:0;visibility:hidden;
  transition:opacity .25s ease,visibility .25s ease;z-index:50}
.backtop.show{opacity:1;visibility:visible}
.reveal{opacity:0;transform:translateY(22px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .rel-grid{grid-template-columns:repeat(2,1fr)}
  .rel-grid.single{grid-template-columns:repeat(2,1fr)}
  .grid5{grid-template-columns:repeat(3,1fr)}
  .sc-wall{grid-template-columns:repeat(2,1fr)}
  .bento{grid-template-columns:repeat(2,1fr);grid-auto-rows:150px}
  .timeline{grid-template-columns:repeat(2,1fr)}
  .timeline::before{display:none}
  .mf-grid{grid-template-columns:1fr 1fr}
  .article-layout{grid-template-columns:1fr}
  .toc{position:static;margin-bottom:10px}
}
@media (max-width:680px){
  .section{padding:52px 0}
  .nav-wrap>a,.dd,.nav-cta{display:none}
  .nav-wrap.open>a,.nav-wrap.open .dd,.nav-wrap.open .nav-cta{display:flex}
  .nav-wrap.open{flex-direction:column;align-items:flex-start;position:absolute;top:66px;left:0;right:0;
    background:#fff;border-bottom:1px solid var(--line);padding:14px 24px;gap:6px;box-shadow:var(--shadow-lg)}
  .nav-wrap.open .dd-menu{position:static;display:flex;box-shadow:none;border:0;padding:0 0 0 12px}
  .nav-toggle{display:block}
  .hero-aurora .wrap{padding:72px 20px 84px}
  .hero-aurora h1{font-size:36px}
  .split{grid-template-columns:1fr;gap:26px}
  .split.rev .img{order:0}
  .rel-grid,.rel-grid.single,.grid5,.sc-wall{grid-template-columns:1fr}
  .bento{grid-template-columns:1fr;grid-auto-rows:auto}
  .b-cell.big{grid-column:span 1;grid-row:span 1;min-height:260px}
  .timeline{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .mf-grid{grid-template-columns:1fr}
  .sitemap-list>div{grid-template-columns:1fr}
  .hero-aurora .hero-cta .btn{width:100%}
  .cta-band{padding:40px 22px}
  .cta-band h2{font-size:24px}
  .fb-band .wrap{padding:64px 22px}
}