/* AURORATOTO2 — 极光幕 hero + Papan Optik 光象对照卡. 夜空 #0A1226 × 极光绿 #7CF2C9 */
:root{
  --bg:#0A1226;--panel:#101B36;--panel2:#152345;--text:#E9F2F6;--muted:#9FB4C6;
  --accent:#7CF2C9;--accent-deep:#3AA88B;--aur2:#9FB8FF;--ink:#060B18;
  --glow:0 0 12px rgba(124,242,201,.4),0 0 26px rgba(124,242,201,.2);
  --grad-panel:linear-gradient(150deg,#152345 0%,#0A1226 100%);
  --font-h:'Condiment',cursive;--font-b:'Carrois Gothic',sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--text);font-family:var(--font-b);line-height:1.7;font-size:16px}
img,svg{max-width:100%;vertical-align:middle}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
.container{width:100%;max-width:1160px;margin:0 auto;padding:0 16px}
.container.narrow{max-width:840px}
.center{text-align:center}
.site-header{position:sticky;top:0;z-index:50;background:rgba(10,18,38,.92);backdrop-filter:blur(10px);border-bottom:1px solid rgba(124,242,201,.35)}
.header-in{display:flex;align-items:center;gap:14px;min-height:60px}
.brand{display:inline-flex;align-items:center;gap:8px;font-family:var(--font-h);font-weight:400;font-size:1.25rem;color:var(--text);white-space:nowrap;letter-spacing:.04em}
.brand:hover{text-decoration:none}
.nav-desktop{display:none;margin-left:auto;gap:18px}
.nav-desktop a{color:var(--muted);font-weight:400;font-size:.95rem;letter-spacing:.02em}
.nav-desktop a:hover{color:var(--accent);text-decoration:none}
.header-cta{display:flex;gap:8px;margin-left:auto}
.nav-desktop+.header-cta{margin-left:0}
.btn{display:inline-block;padding:10px 20px;border-radius:10px;font-family:var(--font-b);font-weight:400;font-size:.9rem;letter-spacing:.03em;cursor:pointer;border:1px solid transparent;transition:transform .15s}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn-primary{background:linear-gradient(135deg,#7CF2C9,#3AA88B);color:#060B18;box-shadow:var(--glow)}
.btn-secondary{background:transparent;color:var(--accent);border-color:rgba(124,242,201,.55)}
.btn-block{display:block;width:100%;text-align:center}
.pulse{animation:pulse-glow 2s infinite}
@keyframes pulse-glow{0%,100%{box-shadow:0 0 8px rgba(124,242,201,.4)}50%{box-shadow:0 0 22px rgba(124,242,201,.8)}}
.nav-toggle{display:none}
.burger{display:flex;flex-direction:column;gap:4px;cursor:pointer;padding:6px;margin-left:4px}
.burger span{width:22px;height:2px;background:var(--accent);border-radius:2px}
.m-nav{display:none;background:var(--panel);border-bottom:1px solid rgba(124,242,201,.3)}
.m-nav-group{padding:10px 16px}
.m-nav-group h3{font-size:.8rem;text-transform:uppercase;letter-spacing:.08em;color:var(--accent);margin-bottom:6px;font-weight:700;font-family:var(--font-b)}
.m-nav-group a{display:block;padding:6px 0;color:var(--text)}
.nav-toggle:checked~.m-nav{display:block}
/* 极光幕 hero（垂直光帘，纯 CSS 零位图） */
.aurora-hero{padding:44px 0 6px;background:radial-gradient(60% 70% at 50% 0%,rgba(124,242,201,.12) 0%,rgba(10,18,38,0) 70%)}
.aurora-head{text-align:center}
.aurora-head h1{font-family:var(--font-h);font-weight:400;font-size:clamp(2.3rem,7vw,3.9rem);letter-spacing:.05em;text-shadow:0 2px 0 #1E4D54,0 0 26px rgba(124,242,201,.45)}
.hero-sub{max-width:660px;margin:12px auto 20px;color:var(--muted)}
.hero-cta{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.aurora-stage{position:relative;height:270px;max-width:660px;margin:26px auto 0;overflow:hidden;border-radius:16px;border:1px solid rgba(124,242,201,.28);background:linear-gradient(180deg,#0D1B3E 0%,#0A1226 75%)}
.aurora-stage::before{content:"";position:absolute;left:0;top:0;width:3px;height:3px;border-radius:50%;background:#E9F2F6;box-shadow:38px 22px 0 -.5px #E9F2F6,120px 40px 0 -.5px #BFD3F2,220px 18px 0 -1px #E9F2F6,310px 52px 0 -.5px #E9F2F6,420px 26px 0 -1px #BFD3F2,520px 46px 0 -.5px #E9F2F6,600px 20px 0 -1px #E9F2F6,80px 88px 0 -.5px #BFD3F2,180px 112px 0 -.5px #E9F2F6,280px 96px 0 -1px #E9F2F6,380px 120px 0 -.5px #E9F2F6,480px 104px 0 -.5px #E9F2F6,580px 92px 0 -1px #E9F2F6,60px 150px 0 -1px #BFD3F2,240px 168px 0 -.5px #E9F2F6,440px 156px 0 -1px #BFD3F2,560px 172px 0 -.5px #E9F2F6;opacity:.8;animation:star-twinkle 4.5s ease-in-out infinite}
@keyframes star-twinkle{0%,100%{opacity:.8}50%{opacity:.4}}
.curtain{position:absolute;top:-6%;height:92%;transform-origin:50% 0;animation:curtain-sway 6s ease-in-out infinite alternate}
.curtain::after{content:"";position:absolute;inset:0;background:repeating-linear-gradient(90deg,rgba(255,255,255,.07) 0 6px,rgba(255,255,255,0) 6px 16px)}
.c1{left:7%;width:78px;background:linear-gradient(180deg,rgba(124,242,201,.8) 0%,rgba(124,242,201,.25) 55%,rgba(124,242,201,0) 100%);animation-duration:7s;animation-delay:-.4s}
.c2{left:23%;width:110px;background:linear-gradient(180deg,rgba(159,184,255,.6) 0%,rgba(159,184,255,.18) 60%,rgba(159,184,255,0) 100%);animation-duration:5.6s;animation-delay:-1.2s}
.c3{left:41%;width:90px;background:linear-gradient(180deg,rgba(124,242,201,.7) 0%,rgba(124,242,201,.2) 58%,rgba(124,242,201,0) 100%);animation-duration:6.4s;animation-delay:-2s}
.c4{right:21%;width:120px;background:linear-gradient(180deg,rgba(159,184,255,.5) 0%,rgba(159,184,255,.15) 62%,rgba(159,184,255,0) 100%);animation-duration:7.6s;animation-delay:-.8s}
.c5{right:6%;width:64px;background:linear-gradient(180deg,rgba(124,242,201,.65) 0%,rgba(124,242,201,.22) 55%,rgba(124,242,201,0) 100%);animation-duration:5.2s;animation-delay:-1.6s}
@keyframes curtain-sway{from{transform:rotate(-1.8deg) skewX(-2deg)}to{transform:rotate(1.6deg) skewX(2deg)}}
.horizon{position:absolute;left:-2%;right:-2%;bottom:-6px;height:58px;background:#060B18;clip-path:polygon(0 62%,9% 38%,18% 55%,30% 26%,42% 50%,55% 20%,68% 46%,80% 30%,90% 52%,100% 40%,100% 100%,0 100%)}
.horizon::before{content:"";position:absolute;inset:0 0 -8px;background:linear-gradient(180deg,rgba(124,242,201,.16),rgba(124,242,201,0) 60%)}
.stage-chips{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin:16px 0 4px}
.chip{font-size:.78rem;letter-spacing:.06em;color:var(--accent);border:1px solid rgba(124,242,201,.4);border-radius:99px;padding:3px 14px;background:rgba(10,18,38,.6)}
.chip-cool{color:#CFE0FF;border-color:rgba(159,184,255,.45)}
.section{padding:38px 0}
.section-alt{background:rgba(14,25,52,.55)}
.sec-title{font-family:var(--font-h);font-weight:400;font-size:1.65rem;margin-bottom:18px;text-align:center;letter-spacing:.03em}
.sec-sub{color:var(--muted);text-align:center;max-width:680px;margin:-8px auto 18px;font-size:.92rem}
.grid-2,.grid-3,.grid-4{display:grid;gap:16px;grid-template-columns:1fr;margin-bottom:8px}
.glow-card{display:block;background:var(--grad-panel);border:1px solid rgba(124,242,201,.35);border-radius:14px;padding:18px;color:var(--text);transition:border-color .15s,box-shadow .15s}
.glow-card:hover{border-color:var(--accent);box-shadow:var(--glow);text-decoration:none}
.glow-card h3{font-size:1.05rem;margin-bottom:6px;color:var(--accent);font-weight:400;letter-spacing:.02em}
.glow-card p{color:var(--muted);font-size:.92rem}
.nc-icon{font-size:1.5rem;display:block;margin-bottom:8px}
/* Papan Optik 光象对照卡（特色板块） */
.po-grid{display:grid;gap:16px;grid-template-columns:1fr;margin-bottom:8px}
.po-card{background:var(--grad-panel);border:1px solid rgba(124,242,201,.35);border-radius:14px;overflow:hidden}
.po-bar{display:flex;align-items:center;gap:10px;padding:10px 16px;font-family:var(--font-h);font-weight:400;font-size:1.25rem;letter-spacing:.03em;color:var(--accent);background:rgba(6,11,24,.72);border-bottom:1px solid rgba(124,242,201,.25)}
.po-bar svg{width:28px;height:34px;flex:0 0 auto}
.po-tale{padding:12px 16px 4px;color:var(--muted);font-size:.92rem;margin:0}
.po-tale strong{color:#CFE0FF}
.po-sci{margin:8px 16px 14px;padding:10px 12px;border-left:3px solid var(--accent);border-radius:0 10px 10px 0;background:rgba(124,242,201,.07);color:var(--text);font-size:.9rem}
.po-sci strong{color:var(--accent)}
.trust-zone p{max-width:640px;margin:10px auto;color:var(--muted)}
.trust-zone .pill-18{margin:6px 0 12px}
.prose .note{color:var(--muted);font-size:.9rem}
.page-head{padding-top:22px}
.page-head h1,.prose h1{font-family:var(--font-h);font-weight:400;font-size:clamp(1.7rem,4.5vw,2.5rem);line-height:1.3;letter-spacing:.02em}
.prose h2{font-family:var(--font-h);font-weight:400;font-size:1.5rem;margin:26px 0 10px;line-height:1.35;letter-spacing:.02em}
.prose h3{font-size:1.05rem;font-weight:400;letter-spacing:.05em;margin:20px 0 8px;color:var(--accent);text-transform:uppercase}
.prose p{margin:0 0 14px}
.prose ul,.prose ol{margin:0 0 14px 22px}
.prose li{margin-bottom:6px}
.steps li{margin-bottom:10px}
.steps li strong{color:var(--accent)}
.edu-fig{margin:18px 0}
.edu-fig img{width:100%;height:auto;border-radius:12px;border:1px solid rgba(124,242,201,.35);box-shadow:0 0 18px rgba(124,242,201,.14)}
.edu-fig figcaption{font-size:.85rem;color:var(--muted);margin-top:8px;text-align:center}
.quick-form{display:grid;gap:8px;max-width:360px;margin:12px 0}
.quick-form label{font-size:.85rem;color:var(--muted)}
.quick-form input{background:#0D1834;border:1px solid rgba(124,242,201,.4);border-radius:8px;padding:10px 12px;color:var(--text);font-family:var(--font-b)}
.quick-form input:focus{outline:none;border-color:var(--accent)}
.kamus-grid{display:grid;gap:10px;margin:14px 0}
.kamus-item{background:var(--grad-panel);border:1px solid rgba(124,242,201,.3);border-radius:10px;overflow:hidden}
.kamus-item summary{cursor:pointer;padding:13px 16px;font-weight:400;letter-spacing:.02em;list-style:none;position:relative}
.kamus-item summary::-webkit-details-marker{display:none}
.kamus-item summary::after{content:"+";position:absolute;right:16px;color:var(--accent)}
.kamus-item[open] summary::after{content:"−"}
.kamus-item p{padding:0 16px 14px;color:var(--muted);font-size:.95rem}
.err-wrap{padding:70px 16px}
.err-code{font-family:var(--font-h);font-size:5rem;color:var(--accent);text-shadow:var(--glow)}
.err-wrap .btn{margin:18px 0}
.crumbs{padding:12px 0 0;font-size:.82rem;color:var(--muted)}
.crumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:6px}
.crumbs li+li::before{content:"›";margin-right:6px;color:var(--accent)}
.site-footer{background:var(--panel);border-top:1px solid rgba(124,242,201,.35);padding:36px 0 92px;margin-top:30px}
.foot-grid{display:grid;gap:24px;grid-template-columns:1fr}
.foot-brand p{color:var(--muted);font-size:.9rem;margin:10px 0}
.foot-col h3{font-size:.85rem;text-transform:uppercase;letter-spacing:.08em;color:var(--accent);margin-bottom:8px;font-weight:400;font-family:var(--font-b)}
.foot-col a{display:block;color:var(--muted);padding:3px 0;font-size:.92rem}
.foot-col a:hover{color:var(--accent);text-decoration:none}
.pill-18{display:inline-block;border:1px solid var(--accent);color:var(--accent);border-radius:999px;padding:2px 12px;font-weight:400;letter-spacing:.06em;font-size:.85rem}
.foot-bottom{margin-top:24px;padding-top:16px;border-top:1px solid rgba(124,242,201,.25);color:var(--muted);font-size:.85rem}
.float-cta{position:fixed;left:0;right:0;bottom:0;z-index:60;padding:10px 16px calc(10px + env(safe-area-inset-bottom));background:rgba(10,18,38,.92);backdrop-filter:blur(8px);border-top:1px solid rgba(124,242,201,.4)}
@media (max-width:767px){
  .header-in{gap:8px}
  .brand{font-size:1.05rem}
  .brand .logo-mark{width:26px;height:26px}
  .header-cta{gap:6px}
  .header-cta .btn{padding:8px 13px;font-size:.85rem}
  .burger{padding:5px}
  .c4{display:none}
  .c2{width:80px}
  .c5{width:50px}
}
@media (min-width:768px){
  .grid-2{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(3,1fr)}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .po-grid{grid-template-columns:repeat(3,1fr)}
  .foot-grid{grid-template-columns:2fr 1fr 1.4fr 1fr}
  .nav-desktop{display:flex}
  .header-cta{margin-left:0}
  .burger{display:none}
  .m-nav{display:none!important}
  .float-cta{left:auto;right:18px;bottom:18px;border-radius:12px;border:1px solid rgba(124,242,201,.5)}
  .float-cta .btn-block{width:auto}
}
@media (min-width:1024px){.grid-4{grid-template-columns:repeat(4,1fr)}}
@media (prefers-reduced-motion:reduce){.pulse,.curtain,.aurora-stage::before{animation:none}}

/* ===== Float CTA Jackpot v2: 底部居中 + 闪烁 ===== */
.float-cta{left:50%;right:auto;transform:translateX(-50%);width:100%;max-width:600px;margin:0;display:block}
.float-inner{display:flex;align-items:center;justify-content:center;gap:12px;flex-wrap:wrap}
.jackpot-tag{display:inline-flex;align-items:center;gap:6px;font-weight:400;font-size:1rem;letter-spacing:.04em;color:#FFE9A8;text-shadow:0 0 10px rgba(255,233,168,.6)}
.jackpot-blink{animation:jackpot-blink 1.1s ease-in-out infinite}
@keyframes jackpot-blink{0%,100%{opacity:1;text-shadow:0 0 10px rgba(255,233,168,.85),0 0 22px rgba(255,233,168,.45)}50%{opacity:.5;text-shadow:0 0 4px rgba(255,233,168,.3)}}
.masuk-btn{position:relative;overflow:hidden;white-space:nowrap;flex:0 0 auto;letter-spacing:.03em;animation:masuk-glow 1.4s ease-in-out infinite}
.masuk-btn::after{content:"";position:absolute;top:0;left:-80%;width:55%;height:100%;background:linear-gradient(105deg,rgba(255,255,255,0) 0%,rgba(255,255,255,.55) 50%,rgba(255,255,255,0) 100%);transform:skewX(-20deg);animation:masuk-shine 1.8s linear infinite}
@keyframes masuk-shine{0%{left:-80%}55%,100%{left:130%}}
@keyframes masuk-glow{0%,100%{box-shadow:0 0 8px rgba(124,242,201,.55)}50%{box-shadow:0 0 24px rgba(124,242,201,.95),0 0 40px rgba(58,168,139,.5)}}
.jp-spark{display:inline-block;animation:spark-twinkle 1s ease-in-out infinite}
@keyframes spark-twinkle{0%,100%{transform:scale(1);opacity:1}50%{transform:scale(.55) rotate(18deg);opacity:.45}}
@media (prefers-reduced-motion:reduce){.jackpot-blink,.masuk-btn,.masuk-btn::after,.jp-spark{animation:none}}