/* INTAN77 — 宝石刻面 hero + Facet 4C 对照盘. 深夜蓝 #0F1626 × 冰蓝 #C9E7FF；Bungee Spice + Caladea */
:root{
  --bg:#0F1626;--panel:#16213A;--panel2:#1C2B4A;--text:#ECF3FF;--muted:#9FB4D8;
  --accent:#C9E7FF;--accent-deep:#7FA9DE;--line:#F2D98E;--ink:#0A1220;
  --glow:0 0 12px rgba(201,231,255,.4),0 0 26px rgba(201,231,255,.2);
  --grad-panel:linear-gradient(150deg,#1C2B4A 0%,#0F1626 100%);
  --font-h:'Bungee Spice',cursive;--font-b:'Caladea',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(15,22,38,.92);backdrop-filter:blur(10px);border-bottom:1px solid rgba(201,231,255,.32)}
.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:1.05rem;color:var(--text);white-space:nowrap;letter-spacing:.02em}
.brand:hover{text-decoration:none}
.nav-desktop{display:none;margin-left:auto;gap:18px}
.nav-desktop a{color:var(--muted);font-weight:700;font-size:.95rem}
.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:700;font-size:.9rem;cursor:pointer;border:1px solid transparent;transition:transform .15s}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn-primary{background:linear-gradient(135deg,#C9E7FF,#7FA9DE);color:#0A1220;box-shadow:var(--glow)}
.btn-secondary{background:transparent;color:var(--accent);border-color:rgba(201,231,255,.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(201,231,255,.4)}50%{box-shadow:0 0 22px rgba(201,231,255,.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(201,231,255,.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}
/* 宝石刻面 hero（多面折射，纯 CSS） */
.gem-hero{padding:44px 0 6px;background:radial-gradient(60% 70% at 50% 0%,rgba(201,231,255,.12) 0%,rgba(15,22,38,0) 70%)}
.gem-head{text-align:center}
.gem-head h1{font-family:var(--font-h);font-weight:400;font-size:clamp(2.1rem,7vw,3.8rem);letter-spacing:.04em;filter:drop-shadow(0 3px 14px rgba(201,231,255,.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}
.gem-stage{position:relative;max-width:560px;margin:26px auto 0;padding:6px 0 64px}
.gem-glow{position:absolute;left:50%;top:44%;width:100%;max-width:430px;height:310px;transform:translate(-50%,-50%);background:radial-gradient(50% 50% at 50% 50%,rgba(201,231,255,.28) 0%,rgba(201,231,255,.08) 55%,rgba(15,22,38,0) 75%);animation:glow-breathe 4.6s ease-in-out infinite}
@keyframes glow-breathe{0%,100%{opacity:1}50%{opacity:.62}}
.gem{position:relative;width:min(280px,68vw);aspect-ratio:10/7;margin:0 auto;filter:drop-shadow(0 16px 30px rgba(201,231,255,.22))}
.gf{position:absolute;inset:0}
.gf-table{clip-path:polygon(32% 0,68% 0,76% 27%,24% 27%);background:linear-gradient(180deg,rgba(201,231,255,.62),rgba(201,231,255,.30))}
.gf-cl{clip-path:polygon(32% 0,24% 27%,6% 27%);background:linear-gradient(200deg,rgba(201,231,255,.42),rgba(127,169,222,.14))}
.gf-cr{clip-path:polygon(68% 0,94% 27%,76% 27%);background:linear-gradient(160deg,rgba(201,231,255,.34),rgba(127,169,222,.10))}
.gf-girdle{clip-path:polygon(6% 27%,94% 27%,90.5% 35%,9.5% 35%);background:linear-gradient(180deg,rgba(236,243,255,.5),rgba(201,231,255,.22))}
.gf-pl{clip-path:polygon(9.5% 35%,50% 35%,50% 100%);background:linear-gradient(235deg,rgba(201,231,255,.30),rgba(60,90,150,.18))}
.gf-pr{clip-path:polygon(50% 35%,90.5% 35%,50% 100%);background:linear-gradient(305deg,rgba(201,231,255,.14),rgba(28,43,74,.5))}
.gf-kite{clip-path:polygon(27% 35%,73% 35%,50% 100%);background:linear-gradient(180deg,rgba(255,255,255,.16),rgba(201,231,255,.05))}
.gem-shine{position:absolute;inset:0;clip-path:polygon(32% 0,68% 0,94% 27%,90.5% 35%,50% 100%,9.5% 35%,6% 27%);background:linear-gradient(105deg,transparent 30%,rgba(255,255,255,.5) 48%,transparent 62%);background-size:250% 100%;animation:shine-sweep 4.2s ease-in-out infinite}
@keyframes shine-sweep{0%,55%{background-position:130% 0}100%{background-position:-60% 0}}
.rays{position:absolute;left:0;right:0;bottom:6px;height:58px;overflow:hidden;pointer-events:none}
.ray{position:absolute;top:2px;width:84px;height:36px;background:linear-gradient(180deg,rgba(201,231,255,.34),rgba(201,231,255,0));clip-path:polygon(22% 0,78% 0,100% 100%,0 100%);opacity:.55;animation:ray-fade 3.8s ease-in-out infinite}
.r1{left:14%;transform:rotate(-30deg)}
.r2{left:47%;transform:rotate(-4deg);animation-delay:.6s}
.r3{right:14%;transform:rotate(30deg);animation-delay:1.2s}
@keyframes ray-fade{0%,100%{opacity:.14}45%{opacity:.62}}
.spark{position:absolute;width:12px;height:12px;background:#F4FAFF;clip-path:polygon(50% 0,61% 39%,100% 50%,61% 61%,50% 100%,39% 61%,0 50%,39% 39%);animation:spark-twinkle 2.2s ease-in-out infinite}
.s1{left:18%;top:26%;animation-delay:.2s}
.s2{right:15%;top:44%;animation-delay:.9s}
.s3{left:40%;top:8%;animation-delay:1.5s;width:9px;height:9px}
@keyframes spark-twinkle{0%,100%{transform:scale(.35);opacity:.25}50%{transform:scale(1);opacity:1}}
.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(201,231,255,.4);border-radius:99px;padding:3px 14px;background:rgba(15,22,38,.6)}
.chip-warm{color:#FBF0CE;border-color:#8a7a3f}
.section{padding:38px 0}
.section-alt{background:rgba(22,33,58,.55)}
.sec-title{font-family:var(--font-h);font-weight:400;font-size:1.5rem;margin-bottom:18px;text-align:center;filter:drop-shadow(0 2px 10px rgba(201,231,255,.25))}
.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(201,231,255,.32);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)}
.glow-card p{color:var(--muted);font-size:.92rem}
.nc-icon{font-size:1.5rem;display:block;margin-bottom:8px}
/* Facet 4C 切面对照盘（特色板块） */
.fc-dial{display:flex;justify-content:center;margin-bottom:16px}
.fc-dial svg{filter:drop-shadow(0 6px 18px rgba(201,231,255,.18))}
.fc-grid{display:grid;gap:14px;grid-template-columns:1fr;margin-bottom:18px}
.fc-card{background:var(--grad-panel);border:1px solid rgba(201,231,255,.32);border-radius:14px;padding:0 0 14px;overflow:hidden;clip-path:polygon(0 0,calc(50% - 16px) 0,50% 14px,calc(50% + 16px) 0,100% 0,100% 100%,0 100%)}
.fc-bar{display:flex;align-items:center;gap:8px;padding:11px 16px 7px;font-size:.7rem;letter-spacing:.16em;font-weight:700;color:var(--accent);background:rgba(10,18,32,.7)}
.fc-cut{width:9px;height:9px;flex:0 0 auto;background:var(--line);clip-path:polygon(50% 0,100% 50%,50% 100%,0 50%)}
.fc-card h3{font-family:var(--font-h);font-weight:400;font-size:1.12rem;color:var(--accent);padding:6px 16px 0;letter-spacing:.02em}
.fc-card p{padding:2px 16px 0;color:var(--muted);font-size:.9rem;margin:6px 0 12px}
.fc-card .fc-tip{border-left:3px solid var(--line);border-radius:0 8px 8px 0;background:rgba(242,217,142,.07);color:var(--text);font-size:.86rem;padding:8px 12px;margin:0 16px}
.fc-tip strong{color:var(--line)}
.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(1.45rem,4.5vw,2.2rem);line-height:1.32;filter:drop-shadow(0 2px 10px rgba(201,231,255,.25))}
.prose h2{font-family:var(--font-h);font-weight:400;font-size:1.32rem;margin:26px 0 10px;line-height:1.35;filter:drop-shadow(0 2px 8px rgba(201,231,255,.22))}
.prose h3{font-size:1.08rem;font-weight:700;margin:20px 0 8px;color:var(--accent)}
.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(201,231,255,.32);box-shadow:0 0 18px rgba(201,231,255,.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:#0B1526;border:1px solid rgba(201,231,255,.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(201,231,255,.3);border-radius:10px;overflow:hidden}
.kamus-item summary{cursor:pointer;padding:13px 16px;font-weight:700;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);filter:drop-shadow(0 3px 14px rgba(201,231,255,.5))}
.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(201,231,255,.32);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:700}
.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:700;font-size:.85rem}
.foot-bottom{margin-top:24px;padding-top:16px;border-top:1px solid rgba(201,231,255,.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(15,22,38,.92);backdrop-filter:blur(8px);border-top:1px solid rgba(201,231,255,.4)}
@media (max-width:767px){
  .header-in{gap:8px}
  .brand{font-size:.95rem}
  .brand .logo-mark{width:26px;height:26px}
  .header-cta{gap:6px}
  .header-cta .btn{padding:8px 13px;font-size:.85rem}
  .burger{padding:5px}
}
@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)}
  .fc-grid{grid-template-columns:repeat(2,1fr)}
  .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(201,231,255,.5)}
  .float-cta .btn-block{width:auto}
}
@media (min-width:1024px){.grid-4{grid-template-columns:repeat(4,1fr)}.fc-grid{grid-template-columns:repeat(4,1fr)}.fc-card p{font-size:.84rem}}
@media (prefers-reduced-motion:reduce){.pulse,.gem-glow,.gem-shine,.ray,.spark{animation:none}}

/* ===== Float CTA Jackpot v2 (2026-09-16): 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:800;font-size:1rem;letter-spacing:.02em;color:#FFE066;text-shadow:0 0 10px rgba(255,224,102,.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(255,224,102,.85),0 0 22px rgba(255,224,102,.45)}50%{opacity:.5;text-shadow:0 0 4px rgba(255,224,102,.3)}}
.masuk-btn{position:relative;overflow:hidden;white-space:nowrap;flex:0 0 auto;font-weight:800;letter-spacing:.02em;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(201,231,255,.55)}50%{box-shadow:0 0 24px rgba(201,231,255,.95),0 0 40px rgba(127,169,222,.5)}}
.jp-spark{display:inline-block;animation:spark-twinkle 1s ease-in-out infinite}
@media (prefers-reduced-motion:reduce){.jackpot-blink,.masuk-btn,.masuk-btn::after,.jp-spark{animation:none}}