/* WEDE777 — 词根系谱 hero + Akar Kata 词源树卡. 墨蓝夜 #11131C × 薄荷霓虹 #9EFFE0 */
:root{
  --bg:#11131C;--panel:#1A1E2E;--panel2:#232840;--text:#EDF2F7;--muted:#9BA6B8;
  --mint:#9EFFE0;--mint-soft:#5C8F82;--ink:#0B0D14;
  --glow:0 0 12px rgba(158,255,224,.35),0 0 26px rgba(158,255,224,.16);
  --grad-panel:linear-gradient(150deg,#232840 0%,#11131C 100%);
  --font-h:'Maiden Orange',cursive;--font-b:'Arbutus Slab',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(--mint);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(17,19,28,.92);backdrop-filter:blur(10px);border-bottom:1px solid rgba(158,255,224,.3)}
.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:1.15rem;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}
.nav-desktop a:hover{color:var(--mint);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:.92rem;cursor:pointer;border:1px solid transparent;transition:transform .15s}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn-primary{background:linear-gradient(135deg,#9EFFE0,#57D6B4);color:#11131C;box-shadow:var(--glow)}
.btn-secondary{background:transparent;color:var(--mint);border-color:rgba(158,255,224,.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(158,255,224,.35)}50%{box-shadow:0 0 22px rgba(158,255,224,.75)}}
.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(--mint);border-radius:2px}
.m-nav{display:none;background:var(--panel);border-bottom:1px solid rgba(158,255,224,.28)}
.m-nav-group{padding:10px 16px}
.m-nav-group h3{font-size:.8rem;text-transform:uppercase;letter-spacing:.08em;color:var(--mint);margin-bottom:6px;font-weight:400}
.m-nav-group a{display:block;padding:6px 0;color:var(--text)}
.nav-toggle:checked~.m-nav{display:block}
/* 词根系谱 hero */
.genea-hero{padding:44px 0 6px;background:radial-gradient(60% 70% at 50% 0%,rgba(158,255,224,.12) 0%,rgba(17,19,28,0) 70%)}
.genea-head{text-align:center}
.genea-head h1{font-family:var(--font-h);font-weight:400;font-size:clamp(2.2rem,7vw,3.8rem);letter-spacing:.05em;text-shadow:0 2px 0 #2E5A4E,0 0 28px rgba(158,255,224,.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}
.tree-stage{position:relative;height:300px;max-width:620px;margin:26px auto 0;overflow:hidden}
.g-glow{position:absolute;left:12%;right:12%;top:6%;bottom:10%;background:radial-gradient(52% 60% at 50% 55%,rgba(158,255,224,.28) 0%,rgba(158,255,224,.07) 58%,rgba(17,19,28,0) 100%);animation:glow-breathe 4.5s ease-in-out infinite;z-index:0}
.g-trunk{position:absolute;left:50%;bottom:44px;width:6px;height:150px;transform:translateX(-50%);background:linear-gradient(180deg,#9EFFE0,#31435C);border-radius:3px;z-index:1;box-shadow:0 0 12px rgba(158,255,224,.35)}
.g-branch{position:absolute;height:2px;background:linear-gradient(90deg,rgba(158,255,224,.85),rgba(158,255,224,0));transform-origin:left center;z-index:1}
.br-1{left:50%;bottom:186px;width:128px;transform:rotate(-38deg)}
.br-2{left:50%;bottom:186px;width:128px;transform:rotate(38deg)}
.br-3{left:50%;bottom:122px;width:112px;transform:rotate(-22deg)}
.br-4{left:50%;bottom:122px;width:112px;transform:rotate(22deg)}
.g-leaf{position:absolute;display:flex;flex-direction:column;gap:1px;padding:8px 12px;background:linear-gradient(150deg,#232840,#1A1E2E);border:1px solid rgba(158,255,224,.5);border-radius:10px;box-shadow:0 0 14px rgba(158,255,224,.14);z-index:2;animation:leaf-float 6s ease-in-out infinite}
.lf-1{left:2%;bottom:216px}
.lf-2{right:2%;bottom:216px;animation-delay:.8s}
.lf-3{left:5%;bottom:92px;animation-delay:1.6s}
.lf-4{right:5%;bottom:92px;animation-delay:2.4s}
.g-word{font-family:var(--font-h);font-weight:400;font-size:.98rem;color:var(--mint);letter-spacing:.05em}
.g-gloss{font-size:.7rem;color:var(--muted);white-space:nowrap}
.g-ground{position:absolute;left:8%;right:8%;bottom:44px;height:2px;background:linear-gradient(90deg,transparent,rgba(158,255,224,.5),transparent);z-index:1}
.g-root{position:absolute;height:24px;width:2px;background:repeating-linear-gradient(180deg,rgba(158,255,224,.5) 0 4px,transparent 4px 8px);z-index:1}
.rt-1{left:calc(50% - 10px);bottom:20px;transform:rotate(20deg)}
.rt-2{left:calc(50% + 6px);bottom:20px;transform:rotate(-22deg)}
.rt-3{left:50%;bottom:18px}
@keyframes leaf-float{0%,100%{transform:translateY(0)}50%{transform:translateY(-6px)}}
@keyframes glow-breathe{0%,100%{opacity:1}50%{opacity:.65}}
.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(--mint);border:1px solid rgba(158,255,224,.4);border-radius:99px;padding:3px 14px;background:rgba(17,19,28,.6)}
.chip-mint{color:#11131C;background:rgba(158,255,224,.85);border-color:rgba(158,255,224,.9)}
.section{padding:38px 0}
.section-alt{background:rgba(26,30,46,.55)}
.sec-title{font-family:var(--font-h);font-weight:400;font-size:1.55rem;margin-bottom:18px;text-align:center;letter-spacing:.03em}
.sec-sub{color:var(--muted);text-align:center;max-width:660px;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(158,255,224,.32);border-radius:14px;padding:18px;color:var(--text);transition:border-color .15s,box-shadow .15s}
.glow-card:hover{border-color:var(--mint);box-shadow:var(--glow);text-decoration:none}
.glow-card h3{font-size:1.05rem;margin-bottom:6px;color:var(--mint)}
.glow-card p{color:var(--muted);font-size:.92rem}
.nc-icon{font-size:1.5rem;display:block;margin-bottom:8px}
/* Akar Kata 词源树卡特色板块 */
.ak-grid{display:grid;gap:16px;grid-template-columns:1fr;margin-bottom:16px}
.ak-card{background:var(--grad-panel);border:1px solid rgba(158,255,224,.35);border-radius:14px;padding:18px}
.ak-badge{display:inline-block;font-size:.68rem;letter-spacing:.14em;text-transform:uppercase;color:#11131C;background:rgba(158,255,224,.85);border-radius:99px;padding:2px 10px;margin-bottom:8px}
.ak-word{font-family:var(--font-h);font-weight:400;font-size:1.35rem;color:var(--mint);letter-spacing:.04em}
.ak-root{font-size:.78rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin:2px 0 10px}
.ak-story{font-size:.92rem;margin-bottom:10px;color:var(--text)}
.ak-tip{border-left:3px solid var(--mint);padding:8px 12px;background:rgba(11,13,20,.55);border-radius:0 10px 10px 0;font-size:.9rem;color:var(--muted)}
.ak-tip strong{color:var(--mint)}
.trust-zone p{max-width:640px;margin:10px auto;color:var(--muted)}
.trust-zone .pill-18{margin:6px 0 12px}
.flow{margin:16px 0;padding:20px;display:block}
.flow>*{border-radius:10px;padding:11px 14px;margin-bottom:9px;font-size:.95rem;background:rgba(17,19,28,.55);border:1px solid rgba(158,255,224,.32)}
.flow-step strong{color:var(--mint)}
.flow-end{border:1px dashed rgba(158,255,224,.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-weight:400;font-size:clamp(1.5rem,4.5vw,2.3rem);line-height:1.3}
.prose h2{font-family:var(--font-h);font-weight:400;font-size:1.4rem;margin:26px 0 10px;line-height:1.35}
.prose h3{font-size:1.1rem;font-weight:400;margin:20px 0 8px;color:var(--mint)}
.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(--mint)}
.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:#11131C;border:1px solid rgba(158,255,224,.4);border-radius:8px;padding:10px 12px;color:var(--text);font-family:var(--font-b)}
.quick-form input:focus{outline:none;border-color:var(--mint)}
.kamus-grid{display:grid;gap:10px;margin:14px 0}
.kamus-item{background:var(--grad-panel);border:1px solid rgba(158,255,224,.3);border-radius:10px;overflow:hidden}
.kamus-item summary{cursor:pointer;padding:13px 16px;font-weight:400;list-style:none;position:relative}
.kamus-item summary::-webkit-details-marker{display:none}
.kamus-item summary::after{content:"+";position:absolute;right:16px;color:var(--mint)}
.kamus-item[open] summary::after{content:"−"}
.kamus-item p{padding:0 16px 14px;color:var(--muted);font-size:.95rem}
.art-fig{margin:18px 0}
.art-fig img{width:100%;height:auto;border-radius:12px;border:1px solid rgba(158,255,224,.32)}
.art-fig figcaption{font-size:.82rem;color:var(--muted);margin-top:8px;text-align:center}
.err-wrap{padding:70px 16px}
.err-code{font-family:var(--font-h);font-size:5rem;color:var(--mint);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(--mint)}
.site-footer{background:var(--panel);border-top:1px solid rgba(158,255,224,.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(--mint);margin-bottom:8px;font-weight:400}
.foot-col a{display:block;color:var(--muted);padding:3px 0;font-size:.92rem}
.foot-col a:hover{color:var(--mint);text-decoration:none}
.pill-18{display:inline-block;border:1px solid var(--mint);color:var(--mint);border-radius:999px;padding:2px 12px;font-weight:400;font-size:.85rem}
.foot-bottom{margin-top:24px;padding-top:16px;border-top:1px solid rgba(158,255,224,.22);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(17,19,28,.92);backdrop-filter:blur(8px);border-top:1px solid rgba(158,255,224,.38)}
@media (max-width:767px){
  .header-in{gap:8px}
  .brand{font-size:1rem}
  .brand .logo-mark{width:26px;height:26px}
  .header-cta{gap:6px}
  .header-cta .btn{padding:8px 13px;font-size:.85rem}
  .burger{padding:5px}
  .tree-stage{height:320px}
  .g-leaf{padding:6px 10px}
  .g-word{font-size:.9rem}
  .g-gloss{font-size:.64rem}
}
@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)}
  .ak-grid{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:2fr 1fr 1.5fr 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(158,255,224,.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,.g-leaf,.g-glow{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:.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;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(158,255,224,.55)}50%{box-shadow:0 0 24px rgba(158,255,224,.95),0 0 40px rgba(87,214,180,.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}}