/* BINTARO88 — 种子发芽 hero + 卡片流. 苔原 #1E2A16 × 新芽绿 #B8D96B */
:root{
  --bg:#121A0D;--panel:#1E2A16;--panel2:#26351B;--text:#E9F2DA;--muted:#A8BC8F;
  --neon:#B8D96B;--leaf:#7FA84C;--glow:0 0 12px rgba(184,217,107,.45),0 0 26px rgba(184,217,107,.2);
  --grad-panel:linear-gradient(150deg,#26351B 0%,#121A0D 100%);
  --font-h:'Grandstander',cursive;--font-b:'Tajawal',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(--neon);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(18,26,13,.92);backdrop-filter:blur(10px);border-bottom:1px solid rgba(184,217,107,.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:700;font-size:1.15rem;color:var(--text);white-space:nowrap}
.brand:hover{text-decoration:none}
.nav-desktop{display:none;margin-left:auto;gap:18px}
.nav-desktop a{color:var(--muted);font-weight:500;font-size:.95rem}
.nav-desktop a:hover{color:var(--neon);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:12px;font-family:var(--font-h);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,#B8D96B,#8FBE45);color:#1E2A16;box-shadow:var(--glow)}
.btn-secondary{background:transparent;color:var(--neon);border-color:rgba(184,217,107,.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(184,217,107,.45)}50%{box-shadow:0 0 22px rgba(184,217,107,.85)}}
.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(--neon);border-radius:2px}
.m-nav{display:none;background:var(--panel);border-bottom:1px solid rgba(184,217,107,.3)}
.m-nav-group{padding:10px 16px}
.m-nav-group h3{font-family:var(--font-h);font-size:.8rem;text-transform:uppercase;letter-spacing:.08em;color:var(--neon);margin-bottom:6px;font-weight:700}
.m-nav-group a{display:block;padding:6px 0;color:var(--text)}
.nav-toggle:checked~.m-nav{display:block}
/* seedling hero */
.seedling-hero{padding:46px 0 0;background:radial-gradient(70% 90% at 78% 8%,rgba(184,217,107,.14) 0%,transparent 60%),var(--bg)}
.hero-grid{display:grid;gap:18px;align-items:center}
.hero-copy h1{font-family:var(--font-h);font-size:clamp(2.2rem,6.5vw,3.4rem);letter-spacing:.03em;text-shadow:0 0 18px rgba(184,217,107,.35)}
.hero-sub{max-width:560px;margin:10px 0 20px;color:var(--muted)}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap}
.seedling{position:relative;height:220px;max-width:320px;margin:0 auto;width:100%}
.sprout-glow{position:absolute;left:50%;bottom:58px;width:150px;height:150px;transform:translateX(-50%);background:radial-gradient(circle,rgba(184,217,107,.35) 0%,transparent 65%);border-radius:50%}
.soil{position:absolute;left:50%;bottom:0;transform:translateX(-50%);width:230px;height:44px;border-radius:50%;background:radial-gradient(50% 90% at 50% 0%,#2C3B1E 0%,#1A2410 70%);border-top:2px solid #4A5A33}
.stem{position:absolute;left:50%;bottom:34px;width:5px;height:110px;transform:translateX(-50%);background:linear-gradient(180deg,#B8D96B,#5C7A3A);border-radius:4px}
.leaf{position:absolute;left:50%;bottom:88px;width:64px;height:38px;background:var(--leaf);border-radius:0 100% 0 100%;transform-origin:100% 50%}
.leaf-l{transform:translateX(-100%) rotate(-8deg)}
.leaf-r{background:var(--neon);border-radius:100% 0 100% 0;transform-origin:0 50%;transform:translateX(0) rotate(8deg)}
.bud{position:absolute;left:50%;bottom:140px;width:16px;height:16px;transform:translateX(-50%);background:radial-gradient(circle at 35% 35%,#E9F2DA,#B8D96B);border-radius:50%;box-shadow:0 0 14px rgba(184,217,107,.9)}
.sprout-dots{display:flex;gap:10px;justify-content:center;padding:6px 0 22px}
.sprout-dots i{width:8px;height:8px;border-radius:50%;background:rgba(184,217,107,.35)}
.sprout-dots i:nth-child(3){background:var(--neon);box-shadow:var(--glow)}
.section{padding:38px 0}
.section-alt{background:rgba(30,42,22,.55)}
.sec-title{font-family:var(--font-h);font-size:1.5rem;margin-bottom:18px;text-align:center}
.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(184,217,107,.35);border-radius:14px;padding:18px;color:var(--text);transition:border-color .15s,box-shadow .15s}
.glow-card:hover{border-color:var(--neon);box-shadow:var(--glow);text-decoration:none}
.glow-card h3{font-family:var(--font-h);font-size:1.02rem;margin-bottom:6px;color:var(--neon)}
.glow-card p{color:var(--muted);font-size:.92rem}
.nc-icon{font-size:1.5rem;display:block;margin-bottom:8px}
.glow-card.edu{position:relative;padding-top:26px}
.curve-tag{display:inline-block;font-family:var(--font-h);font-size:.68rem;letter-spacing:.1em;font-weight:700;border-radius:6px;padding:2px 9px;margin-bottom:8px}
.glow-card.edu .curve-tag{position:absolute;top:12px;left:14px}
.tag-myth{background:rgba(230,120,90,.16);color:#F0A48A;border:1px solid rgba(240,164,138,.5)}
.tag-real{background:rgba(184,217,107,.16);color:var(--neon);border:1px solid rgba(184,217,107,.5)}
/* curve compare */
.curve-panel{display:block;position:relative}
.curve-head h3{font-family:var(--font-h);font-size:1.15rem;margin-bottom:4px}
.curve-head p{color:var(--muted);font-size:.92rem;margin-bottom:14px}
.curves{display:grid;gap:16px;grid-template-columns:1fr}
.curve-box{background:rgba(18,26,13,.55);border:1px solid rgba(184,217,107,.3);border-radius:12px;padding:12px}
.curve-box figcaption{font-size:.85rem;font-weight:500;color:var(--muted);margin-bottom:8px}
.curve-canvas{position:relative;height:130px;border-left:2px solid rgba(184,217,107,.4);border-bottom:2px solid rgba(184,217,107,.4);border-radius:0 0 0 6px;overflow:hidden}
.curve-grid{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:space-evenly}
.curve-grid i{display:block;height:1px;background:rgba(184,217,107,.12)}
.curve-line{position:absolute;left:4%;bottom:14%;width:92%;height:70%;border:3px solid transparent}
.line-up{border-right-color:var(--neon);border-top-color:var(--neon);border-radius:0 100% 0 0;transform:rotate(-4deg);filter:drop-shadow(0 0 6px rgba(184,217,107,.8))}
.line-down{border-left-color:#F0A48A;border-bottom-color:#F0A48A;border-radius:0 0 0 100%;height:52%;bottom:26%;transform:rotate(3deg);opacity:.9}
.curve-end{position:absolute;width:10px;height:10px;border-radius:50%}
.dot-up{right:3%;top:12%;background:var(--neon);box-shadow:0 0 10px rgba(184,217,107,.9)}
.dot-down{right:3%;bottom:20%;background:#F0A48A}
.curve-note{font-size:.82rem;color:var(--muted);margin-top:8px}
.stamp{display:inline-block;margin-top:12px;font-family:var(--font-h);font-weight:700;letter-spacing:.22em;font-size:.75rem;color:#F0A48A;border:2px dashed rgba(240,164,138,.7);border-radius:6px;padding:3px 12px;transform:rotate(-3deg)}
.curve-foot{color:var(--muted);font-size:.85rem;margin-top:10px}
/* flow cards */
.flow{margin:16px 0;padding:20px;display:block}
.flow>*{border-radius:10px;padding:11px 14px;margin-bottom:9px;font-size:.95rem;background:rgba(18,26,13,.55);border:1px solid rgba(184,217,107,.35)}
.flow-step strong{color:var(--neon)}
.flow-end{border:1px dashed rgba(184,217,107,.5);color:var(--muted)}
.prose .note{color:var(--muted);font-size:.9rem}
.page-head{padding-top:22px}
.page-head h1,.prose h1{font-family:var(--font-h);font-size:clamp(1.6rem,4.5vw,2.2rem)}
.prose h2{font-family:var(--font-h);font-size:1.32rem;margin:26px 0 10px}
.prose h3{font-size:1.08rem;font-weight:700;margin:20px 0 8px;color:var(--neon)}
.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(--neon)}
.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:#121A0D;border:1px solid rgba(184,217,107,.4);border-radius:8px;padding:10px 12px;color:var(--text);font-family:var(--font-b)}
.quick-form input:focus{outline:none;border-color:var(--neon)}
.kamus-grid{display:grid;gap:10px;margin:14px 0}
.kamus-item{background:var(--grad-panel);border:1px solid rgba(184,217,107,.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(--neon)}
.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(--neon);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(--neon)}
.site-footer{background:var(--panel);border-top:1px solid rgba(184,217,107,.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-family:var(--font-h);font-size:.85rem;text-transform:uppercase;letter-spacing:.08em;color:var(--neon);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(--neon);text-decoration:none}
.pill-18{display:inline-block;border:1px solid var(--neon);color:var(--neon);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(184,217,107,.25);color:var(--muted);font-size:.85rem}
.float-cta{position:fixed;left:50%;bottom:0;transform:translateX(-50%);width:min(460px,calc(100vw - 24px));max-width:calc(100vw - 24px);z-index:60;display:flex;align-items:center;gap:12px;padding:10px 14px calc(10px + env(safe-area-inset-bottom));background:rgba(18,26,13,.94);backdrop-filter:blur(8px);border:1px solid rgba(184,217,107,.45);border-radius:14px 14px 0 0;box-shadow:0 -6px 24px rgba(0,0,0,.35)}
.float-cta .float-tag{font-family:var(--font-h);font-weight:700;font-size:.88rem;color:var(--neon);white-space:nowrap;text-shadow:0 0 12px rgba(184,217,107,.5)}
.float-cta .btn{flex:1;white-space:nowrap;text-align:center;animation:cta-blink 1.6s ease-in-out infinite}
@keyframes cta-blink{0%,100%{box-shadow:0 0 10px rgba(184,217,107,.45);transform:scale(1)}50%{box-shadow:0 0 24px rgba(184,217,107,.95),0 0 42px rgba(184,217,107,.35);transform:scale(1.04)}}
@media (min-width:768px){
  .grid-3{grid-template-columns:repeat(3,1fr)}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .hero-grid{grid-template-columns:1.2fr .8fr;gap:32px}
  .hero-copy h1{text-align:left}
  .curves{grid-template-columns:1fr 1fr}
  .foot-grid{grid-template-columns:2fr 1fr 1fr 1fr}
  .nav-desktop{display:flex}
  .header-cta{margin-left:0}
  .burger{display:none}
  .m-nav{display:none!important}
}
@media (min-width:1024px){.grid-4{grid-template-columns:repeat(4,1fr)}}
@media (prefers-reduced-motion:reduce){.pulse,.float-cta .btn{animation:none}}