/* AURA Protocol — 非對稱編輯式視覺系統
   原則：內容在 HTML/CSS 層 100% 可見；動效只做「可見 → 更醒目」的增強。
   無裁切、零寬、零高或條件式起始態；內容顯現不依賴任何可見性觀察器與捲動事件。 */

:root{
  --ink:#0a0a0e;
  --ink2:#121219;
  --paper:#f0eee6;
  --acid:#d9ff3c;
  --signal:#ff4a26;
  --fog:#8b8b98;
  --line:rgba(240,238,230,.16);
  --line-d:rgba(10,10,14,.18);
  --sans:"Noto Sans TC","PingFang TC","Noto Sans CJK TC","Source Han Sans TC","Microsoft JhengHei","Heiti TC",-apple-system,BlinkMacSystemFont,system-ui,sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,"PingFang TC","Microsoft JhengHei",monospace;
  --pad:clamp(22px,4vw,68px);
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--ink);color:var(--paper);font-family:var(--sans);font-weight:300;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%}
/* 漸進增強：避免中文段落尾行只剩一兩個字；不支援的瀏覽器直接忽略 */
p,h2,h3,h4,summary,.lead{text-wrap:pretty}
::selection{background:var(--acid);color:var(--ink)}

/* ---------- 全域裝飾：恆可見，純疊加 ---------- */
.progress{position:fixed;top:0;left:0;right:0;height:2px;background:var(--acid);z-index:120;opacity:.85;pointer-events:none}
.scanline{position:fixed;top:0;left:0;width:22vw;height:100vh;z-index:99;pointer-events:none;
  background:linear-gradient(90deg,transparent,rgba(217,255,60,.035),transparent);
  animation:scan 11s linear infinite}
@keyframes scan{from{transform:translateX(-30vw)}to{transform:translateX(110vw)}}

/* ---------- 導覽 ---------- */
.nav{position:fixed;top:0;left:0;right:0;z-index:110;transition:background .3s,border-color .3s;border-bottom:1px solid transparent}
.nav.scrolled{background:rgba(10,10,14,.94);border-bottom-color:var(--line)}
.nav-inner{max-width:1680px;margin:0 auto;padding:20px var(--pad);display:flex;align-items:center;gap:clamp(20px,3vw,52px)}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:900;font-size:23px;letter-spacing:-.05em;white-space:nowrap}
.brand-sq{width:11px;height:11px;background:var(--acid);display:inline-block;transform:rotate(45deg)}
.brand-sub{font-family:var(--mono);font-size:9.5px;font-weight:400;letter-spacing:.16em;color:var(--fog);margin-left:2px}
.nav-links{display:flex;gap:clamp(14px,1.7vw,28px);margin-left:auto}
.nav-links a{font-size:12.5px;font-weight:400;color:var(--fog);letter-spacing:.02em;transition:color .2s;white-space:nowrap;position:relative}
.nav-links a:hover{color:var(--acid)}
.nav-links a::after{content:"";position:absolute;left:0;bottom:-6px;width:100%;height:1px;background:var(--acid);transform:scaleX(0);transform-origin:left;transition:transform .25s}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-btn{font-family:var(--mono);font-size:11px;letter-spacing:.06em;padding:11px 18px;border:1px solid var(--acid);color:var(--acid);white-space:nowrap;transition:background .2s,color .2s;position:relative;overflow:hidden;z-index:1}
.nav-btn:hover{color:var(--ink)}
.nav-btn::before{content:"";position:absolute;inset:0;background:var(--acid);z-index:-1;transform:scale(.6);opacity:0;transition:transform .3s cubic-bezier(.16,1,.3,1),opacity .25s}
.nav-btn:hover::before{transform:scale(1);opacity:1}

/* ---------- HERO：全出血單一主視覺 ---------- */
.hero{position:relative;min-height:100svh;display:flex;flex-direction:column;overflow:hidden;background:var(--ink)}
.hero-orb{position:absolute;right:-16%;top:48%;transform:translateY(-50%);width:min(1120px,92vw);z-index:1;pointer-events:none;will-change:transform}
.hero-orb img{display:block;width:100%;mix-blend-mode:screen;opacity:.96}
.hero-veil{position:absolute;inset:0;z-index:2;pointer-events:none;
  background:linear-gradient(90deg,var(--ink) 0%,rgba(10,10,14,.95) 28%,rgba(10,10,14,.56) 58%,rgba(10,10,14,0) 84%)}
.orbit{position:absolute;inset:0;width:100%;height:100%;z-index:3;pointer-events:none}
.hero-inner{position:relative;z-index:4;flex:1;display:flex;flex-direction:column;justify-content:space-between;max-width:1680px;width:100%;margin:0 auto;padding:clamp(92px,10vh,124px) var(--pad) 22px}
.hero-meta{display:flex;gap:clamp(14px,2.5vw,40px);flex-wrap:wrap;font-family:var(--mono);font-size:10px;letter-spacing:.1em;color:var(--fog)}
.hero-body{max-width:min(1180px,92vw);margin:clamp(26px,4.5vh,56px) 0 clamp(26px,4vh,48px);will-change:transform}
.kicker{display:flex;flex-wrap:wrap;align-items:baseline;gap:0 .55em;font-family:var(--mono);font-size:10.5px;letter-spacing:.18em;color:var(--acid);margin-bottom:clamp(16px,2.4vh,28px)}
.kicker>span{white-space:nowrap}
.ksep{opacity:.6}
.hero-title{margin:0;font-weight:900;font-size:clamp(52px,8.6vw,136px);line-height:1.02;letter-spacing:-.075em;animation:breathe 8s ease-in-out infinite;text-shadow:0 4px 40px rgba(10,10,14,.6)}
.hero-title span{display:block;white-space:nowrap}
.hero-title .out{color:transparent;-webkit-text-stroke:1.5px var(--paper);text-shadow:0 0 14px rgba(10,10,14,.95),0 0 34px rgba(10,10,14,.8)}
.hero-title .dot{display:inline-block;width:.105em;height:.105em;background:var(--acid);margin-left:.1em;vertical-align:.02em;box-shadow:0 0 24px rgba(217,255,60,.7)}
@keyframes breathe{0%,100%{letter-spacing:-.075em}50%{letter-spacing:-.062em}}
.hero-sub{max-width:440px;margin:clamp(20px,3vh,32px) 0 0;font-size:clamp(14px,1.15vw,16.5px);line-height:1.8;color:#c3c3cd}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:clamp(20px,3vh,32px)}
.btn{display:inline-flex;align-items:center;justify-content:space-between;gap:36px;padding:16px 22px;font-size:13.5px;font-weight:400;letter-spacing:.02em;position:relative;overflow:hidden;z-index:1;transition:color .25s,border-color .25s}
.btn b{font-family:var(--mono);font-size:14px;font-weight:400}
.btn-acid{background:var(--acid);color:var(--ink);border:1px solid var(--acid);font-weight:900}
.btn-acid::before{content:"";position:absolute;inset:0;background:var(--paper);z-index:-1;transform:translateX(-101%);transition:transform .38s cubic-bezier(.16,1,.3,1)}
.btn-acid:hover::before{transform:translateX(0)}
.btn-line{border:1px solid rgba(240,238,230,.42);color:var(--paper)}
.btn-line:hover{border-color:var(--acid);color:var(--acid)}
.hero-ticker{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid rgba(240,238,230,.3);
  background:rgba(10,10,14,.93);padding:16px 12px 12px;margin:0 -12px;gap:18px}
.hero-ticker>div{border-left:1px solid var(--line);padding-left:16px}
.hero-ticker>div:first-child{border-left:0;padding-left:0}
.hero-ticker b{display:block;font-family:var(--mono);font-size:clamp(17px,1.8vw,26px);font-weight:500;letter-spacing:-.04em;color:var(--paper)}
.hero-ticker span{display:block;margin-top:7px;font-size:10.5px;color:var(--fog);letter-spacing:.02em}
.hero-edge{position:absolute;z-index:5;font-family:var(--mono);font-size:9px;letter-spacing:.22em;color:var(--fog);writing-mode:vertical-rl;top:50%;transform:translateY(-50%)}
.hero-edge.left{left:14px}
.hero-edge.right{right:14px;transform:translateY(-50%) rotate(180deg)}
.scroll-hint{position:absolute;right:var(--pad);bottom:96px;z-index:5;font-family:var(--mono);font-size:9.5px;letter-spacing:.2em;color:var(--fog);display:flex;align-items:center;gap:9px}
.scroll-hint span{color:var(--acid);font-size:15px;animation:down 1.8s ease-in-out infinite}
@keyframes down{0%,100%{transform:translateY(0)}50%{transform:translateY(6px)}}

/* ---------- 跑馬燈帶 ---------- */
.marquee{background:var(--acid);color:var(--ink);overflow:hidden;padding:13px 0;border-top:1px solid var(--ink);border-bottom:1px solid var(--ink)}
.marquee-track{display:flex;align-items:center;gap:26px;width:max-content;animation:marq 30s linear infinite}
.marquee-track span{font-weight:900;font-size:clamp(15px,1.7vw,23px);letter-spacing:-.02em;white-space:nowrap}
.marquee-track i{font-style:normal;font-size:11px;opacity:.55}
@keyframes marq{to{transform:translateX(-50%)}}

/* ---------- 章節通用：刻意不共用同一柵格 ---------- */
.chapter{position:relative;padding:clamp(88px,10vw,168px) var(--pad);overflow:hidden}
.chapter.invert{background:var(--paper);color:var(--ink)}
.chap-head{display:flex;align-items:baseline;gap:clamp(14px,2vw,30px);border-bottom:1px solid var(--line);padding-bottom:16px;margin-bottom:clamp(46px,6.5vw,96px);font-family:var(--mono);font-size:10.5px;letter-spacing:.16em;color:var(--fog)}
.invert .chap-head{border-bottom-color:var(--line-d);color:#5c5c66}
.chap-no{font-family:var(--sans);font-weight:900;font-size:clamp(26px,3.2vw,46px);letter-spacing:-.07em;color:var(--acid);line-height:1}
.invert .chap-no{color:var(--signal)}
.mega{margin:0;font-weight:900;font-size:clamp(44px,7.4vw,118px);line-height:1.14;letter-spacing:-.07em}
.statement{margin:0;font-weight:900;font-size:clamp(40px,6.4vw,100px);line-height:1.16;letter-spacing:-.07em}
.lead{margin:clamp(28px,4vw,52px) 0 0;max-width:640px;font-size:clamp(14.5px,1.2vw,17px);line-height:1.9;color:var(--fog)}
.lead.wide{max-width:820px}
.invert .lead{color:#4c4c56}
.acid{color:var(--acid)}
.invert .acid{color:var(--signal)}
.out{color:transparent;-webkit-text-stroke:1.5px var(--paper)}
.out-dark{color:transparent;-webkit-text-stroke:1.5px var(--ink)}

/* 01 問題：骨白反白 + 粗黑線長行 */
.problem-rows{margin-top:clamp(50px,7vw,100px)}
.prow{display:grid;grid-template-columns:clamp(64px,8vw,120px) minmax(200px,.9fr) 1.1fr;gap:clamp(16px,3vw,48px);align-items:baseline;border-top:2px solid var(--ink);padding:26px 0}
.prow:last-child{border-bottom:2px solid var(--ink)}
.prow-no{font-family:var(--mono);font-size:12px;letter-spacing:.1em;color:var(--signal)}
.prow h3{margin:0;font-size:clamp(19px,2vw,29px);font-weight:900;letter-spacing:-.04em;line-height:1.35}
.prow p{margin:0;font-size:14px;line-height:1.8;color:#4c4c56}

/* 委託憑證剖面：大字 + 四維度橫列，非卡片 */
.schema-sec{background:var(--ink2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.schema-lay{display:grid;grid-template-columns:.85fr 1.15fr;gap:clamp(30px,6vw,90px);align-items:end}
.schema-h{margin:0;font-size:clamp(38px,5.4vw,84px);font-weight:900;line-height:1.14;letter-spacing:-.07em}
.schema-dims{display:grid;grid-template-columns:repeat(2,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line)}
.schema-dims>div{border-right:1px solid var(--line);border-bottom:1px solid var(--line);padding:22px 20px 26px;display:flex;flex-direction:column;gap:5px;transition:background .25s,color .25s}
.schema-dims>div:hover{background:var(--acid);color:var(--ink)}
.schema-dims span{font-family:var(--mono);font-size:10px;letter-spacing:.14em;color:var(--fog)}
.schema-dims>div:hover span,.schema-dims>div:hover i{color:rgba(10,10,14,.65)}
.schema-dims b{font-size:clamp(26px,3vw,44px);font-weight:900;letter-spacing:-.05em;line-height:1.1}
.schema-dims i{font-family:var(--mono);font-style:normal;font-size:9.5px;letter-spacing:.14em;color:var(--fog)}
.flow{margin-top:clamp(40px,6vw,80px);display:grid;grid-template-columns:180px 1fr;gap:24px;align-items:start;border-top:1px solid var(--line);padding-top:22px}
.flow-label{font-family:var(--mono);font-size:10px;letter-spacing:.14em;color:var(--acid)}
.flow-steps{display:flex;flex-wrap:wrap;gap:10px 16px;align-items:center;font-size:clamp(14px,1.25vw,17px);line-height:1.7}
.flow-steps span{border-bottom:1px solid var(--line);padding-bottom:3px}
.flow-steps i{font-style:normal;color:var(--acid);font-family:var(--mono)}
.src{margin:34px 0 0;font-family:var(--mono);font-size:10px;letter-spacing:.08em;color:var(--fog)}

/* 02 原則：巨型描邊編號 + 整行反色 hover */
.principles-list{margin-top:clamp(56px,8vw,110px)}
.pline{display:grid;grid-template-columns:clamp(88px,12vw,190px) 1fr;gap:clamp(16px,3vw,40px);align-items:center;border-top:1px solid var(--line);padding:18px 12px;transition:background .28s,color .28s}
.pline:last-child{border-bottom:1px solid var(--line)}
.pline:hover{background:var(--acid);color:var(--ink)}
.pline-no{font-size:clamp(52px,7.6vw,112px);font-weight:900;line-height:1;letter-spacing:-.09em;color:transparent;-webkit-text-stroke:1.5px rgba(240,238,230,.34);transition:-webkit-text-stroke-color .28s}
.pline:hover .pline-no{-webkit-text-stroke-color:rgba(10,10,14,.55)}
.pline h3{margin:0;font-size:clamp(19px,2.2vw,31px);font-weight:900;letter-spacing:-.04em}
.pline h3 i{font-family:var(--mono);font-style:normal;font-size:10px;font-weight:400;letter-spacing:.14em;color:var(--fog);margin-left:12px}
.pline:hover h3 i,.pline:hover p{color:rgba(10,10,14,.72)}
.pline p{margin:8px 0 0;font-size:13.5px;line-height:1.75;color:var(--fog)}

/* 03 架構：sticky 左欄 + 右側階梯剖面 */
.arch-sec{display:grid;grid-template-columns:36% 1fr;gap:clamp(30px,5vw,80px);padding-top:clamp(90px,10vw,160px)}
.arch-sticky{position:sticky;top:120px}
.arch-sticky .chap-no{display:block;margin-bottom:26px}
.arch-sticky h2{margin:0;font-size:clamp(36px,4.6vw,72px);font-weight:900;line-height:1.14;letter-spacing:-.07em}
.arch-sticky p{margin:26px 0 0;font-family:var(--mono);font-size:10px;letter-spacing:.16em;color:var(--fog)}
.layer{display:grid;grid-template-columns:clamp(46px,5vw,70px) 1fr auto;gap:clamp(12px,2vw,26px);align-items:baseline;border-top:2px solid var(--paper);padding:22px 0 26px;margin-left:calc(var(--i) * 3.2%);transition:border-color .25s,transform .3s}
.layer:hover{border-color:var(--acid);transform:translateX(10px)}
.layer-no{font-family:var(--mono);font-size:12px;letter-spacing:.1em;color:var(--acid)}
.layer b{font-size:clamp(20px,2.1vw,31px);font-weight:900;letter-spacing:-.04em}
.layer>span:last-child{font-size:12.5px;color:var(--fog);text-align:right}
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(20px,3vw,46px);margin-top:clamp(50px,7vw,90px);border-top:1px solid var(--line);padding-top:28px}
.split>div{border-left:2px solid var(--acid);padding-left:18px}
.split span{font-family:var(--mono);font-size:9.5px;letter-spacing:.14em;color:var(--acid)}
.split h4{margin:12px 0 8px;font-size:clamp(18px,1.8vw,25px);font-weight:900;letter-spacing:-.04em}
.split p{margin:0;font-size:13px;line-height:1.8;color:var(--fog)}

/* 04 模組：橫向溢出 */
.mod-sec{padding-bottom:clamp(80px,9vw,140px)}
.mod-hint{font-family:var(--mono);font-size:10px;letter-spacing:.16em;color:var(--acid);margin:clamp(40px,6vw,80px) 0 14px}
.mod-track{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;border-top:2px solid var(--paper);border-bottom:2px solid var(--paper);scrollbar-color:var(--acid) transparent;scrollbar-width:thin}
.mod{flex:0 0 clamp(250px,25vw,340px);scroll-snap-align:start;padding:32px 26px 42px;border-right:1px solid var(--line);position:relative;transition:background .28s,color .28s;min-height:290px;display:flex;flex-direction:column}
.mod::before{content:"";position:absolute;top:0;left:0;width:100%;height:4px;background:var(--acid)}
.mod:hover{background:var(--acid);color:var(--ink)}
.mod>span{font-size:clamp(48px,5.4vw,80px);font-weight:900;letter-spacing:-.09em;line-height:1;color:transparent;-webkit-text-stroke:1.5px rgba(240,238,230,.4);display:block;margin-bottom:auto}
.mod:hover>span{-webkit-text-stroke-color:rgba(10,10,14,.55)}
.mod h3{margin:22px 0 10px;font-size:clamp(21px,2vw,29px);font-weight:900;letter-spacing:-.04em}
.mod p{margin:0;font-size:13px;line-height:1.75;color:var(--fog)}
.mod:hover p,.mod:hover i{color:rgba(10,10,14,.74)}
.mod i{display:block;margin-top:18px;font-family:var(--mono);font-style:normal;font-size:9.5px;letter-spacing:.1em;color:var(--fog);line-height:1.6}

/* 05 生態：第二個反白段 */
.eco{margin-top:clamp(50px,7vw,100px);border-top:2px solid var(--ink)}
.eco-row{display:grid;grid-template-columns:clamp(60px,7vw,110px) minmax(180px,.8fr) 1fr;gap:clamp(14px,2.5vw,36px);align-items:baseline;border-bottom:2px solid var(--ink);padding:24px 0}
.eco-row>span{font-family:var(--mono);font-size:11px;letter-spacing:.1em;color:var(--signal)}
.eco-row h3{margin:0;font-size:clamp(19px,2.1vw,30px);font-weight:900;letter-spacing:-.04em}
.eco-row p{margin:0;font-size:13.5px;line-height:1.75;color:#4c4c56}

/* 06 代幣：全出血超大數字 + 單色階梯條 */
.tok-sec{background:var(--ink2)}
.tok-bleed{margin-top:clamp(58px,8vw,110px);border-top:2px solid var(--acid);border-bottom:2px solid var(--acid);padding:26px 0 32px;overflow:hidden}
.tok-bleed>span{display:block;font-family:var(--mono);font-size:10px;letter-spacing:.16em;color:var(--acid)}
.tok-bleed b{display:block;font-family:var(--mono);font-weight:500;font-size:clamp(38px,9.2vw,148px);line-height:1.08;letter-spacing:-.075em;white-space:nowrap;color:var(--paper)}
.tok-bleed em{display:block;font-style:normal;font-size:12.5px;color:var(--fog);letter-spacing:.04em}
.tok-facts{display:grid;grid-template-columns:repeat(3,1fr);gap:0;margin-top:36px;border-bottom:1px solid var(--line)}
.tok-facts>div{padding:20px 18px 22px;border-left:1px solid var(--line)}
.tok-facts>div:first-child{border-left:0;padding-left:0}
.tok-facts b{display:block;font-family:var(--mono);font-size:clamp(22px,2.6vw,38px);font-weight:500;letter-spacing:-.05em;color:var(--acid)}
.tok-facts span{display:block;margin-top:8px;font-size:11.5px;color:var(--fog)}
.alloc-title{display:flex;justify-content:space-between;margin-top:clamp(56px,8vw,100px);padding-bottom:14px;border-bottom:1px solid var(--line);font-family:var(--mono);font-size:10.5px;letter-spacing:.14em;color:var(--fog)}
.alloc-bar{display:flex;gap:3px;height:58px;margin-top:16px}
.alloc-bar span{display:block;width:var(--w);background:var(--acid);opacity:var(--o);transform-origin:bottom;transition:opacity .25s,transform .25s;cursor:default}
.alloc-bar span:hover{opacity:1;transform:scaleY(1.14)}
.alloc-list{display:grid;grid-template-columns:1fr 1fr;gap:0 clamp(24px,4vw,70px);margin-top:26px}
.alloc-list>div{display:grid;grid-template-columns:10px 1fr auto auto;gap:14px;align-items:baseline;border-bottom:1px solid var(--line);padding:12px 0;font-size:13px}
.alloc-list i{width:9px;height:9px;background:var(--acid);opacity:var(--o);display:block}
.alloc-list b{font-family:var(--mono);font-size:14px;font-weight:500;color:var(--paper)}
.alloc-list em{font-family:var(--mono);font-style:normal;font-size:10.5px;color:var(--fog);min-width:86px;text-align:right}
.tok-note{margin:28px 0 0;font-size:12.5px;line-height:1.8;color:var(--fog);max-width:820px}

/* 07 路線圖：橫向時間軸 */
.road{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(20px,3vw,50px);margin-top:clamp(56px,8vw,100px);border-top:2px solid var(--paper)}
.road-step{position:relative;padding:28px 0 0}
.road-step::before{content:"";position:absolute;top:-7px;left:0;width:12px;height:12px;background:var(--acid)}
.rs-ph{font-family:var(--mono);font-size:10px;letter-spacing:.16em;color:var(--acid)}
.road-step h3{margin:18px 0 10px;font-size:clamp(21px,2.3vw,33px);font-weight:900;letter-spacing:-.05em}
.road-step p{margin:0;font-size:13.5px;line-height:1.8;color:var(--fog)}
.risk{display:grid;grid-template-columns:180px 1fr;gap:24px;margin-top:clamp(60px,8vw,110px);border-top:2px solid var(--signal);padding-top:22px}
.risk span{font-family:var(--mono);font-size:10.5px;letter-spacing:.14em;color:var(--signal)}
.risk p{margin:0;font-size:14px;line-height:1.85;color:var(--fog);max-width:820px}

/* 08 FAQ：details 預設展開 */
.faq-list{margin-top:clamp(52px,7vw,96px);border-top:1px solid var(--line)}
.faq-list details{border-bottom:1px solid var(--line);padding:20px 0}
.faq-list summary{list-style:none;cursor:pointer;display:grid;grid-template-columns:clamp(46px,5vw,72px) 1fr 20px;gap:14px;align-items:baseline;font-size:clamp(17px,1.8vw,25px);font-weight:900;letter-spacing:-.04em}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list summary>span{font-family:var(--mono);font-size:11px;font-weight:400;letter-spacing:.1em;color:var(--acid)}
.faq-list summary i{font-style:normal;font-family:var(--mono);font-size:16px;color:var(--fog);text-align:right}
.faq-list details[open] summary i{transform:rotate(45deg);display:inline-block}
.faq-list details p{margin:14px 0 0;padding-left:calc(clamp(46px,5vw,72px) + 14px);font-size:13.5px;line-height:1.85;color:var(--fog);max-width:820px}
.faq-list details p strong{color:var(--acid);font-weight:900}

/* CTA */
.cta{position:relative;overflow:hidden;background:var(--ink);border-top:1px solid var(--line);padding:clamp(90px,12vw,180px) var(--pad)}
.cta-orb{position:absolute;right:-16%;top:50%;transform:translateY(-50%);width:min(900px,80vw);mix-blend-mode:screen;opacity:.4;pointer-events:none}
.cta-in{position:relative;z-index:2;max-width:1200px;margin:0 auto}
.cta-top,.cta-bottom{display:flex;justify-content:space-between;gap:20px;font-family:var(--mono);font-size:10px;letter-spacing:.14em;color:var(--fog);flex-wrap:wrap}
.cta-top{padding-bottom:20px;border-bottom:1px solid var(--line)}
.cta-bottom{margin-top:clamp(70px,10vw,140px);padding-top:20px;border-top:1px solid var(--line)}
.cta h2{margin:clamp(50px,7vw,100px) 0 0;font-size:clamp(34px,5.4vw,82px);font-weight:900;line-height:1.16;letter-spacing:-.07em}
.cta>p{margin:28px 0 0;max-width:620px;font-size:14.5px;line-height:1.85;color:var(--fog)}

/* Footer */
.footer{background:var(--paper);color:var(--ink);padding:clamp(48px,6vw,80px) var(--pad) 28px}
.footer-top{display:grid;grid-template-columns:1fr 1.2fr;gap:clamp(36px,6vw,100px);padding-bottom:clamp(46px,6vw,80px);border-bottom:1px solid var(--line-d)}
.footer-brand .brand{font-size:30px}
.footer-brand .brand-sq{background:var(--signal)}
.footer-brand p{margin:16px 0 0;font-size:13px;color:#55555e;max-width:280px;line-height:1.7}
.footer-cols{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.footer-cols>div{display:flex;flex-direction:column;gap:11px}
.footer-cols span{font-family:var(--mono);font-size:10px;letter-spacing:.14em;color:var(--signal);margin-bottom:6px}
.footer-cols a{font-size:13px;transition:color .2s}
.footer-cols a:hover{color:var(--signal)}
.footer-bottom{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;padding-top:22px;font-size:11px;color:#6a6a73;line-height:1.7}

/* ---------- 響應式 ---------- */
@media(max-width:1100px){
  /* 導覽連結在窄屏仍全部可見，改為第二行橫向捲動，不做條件式收合 */
  .nav-inner{flex-wrap:wrap;row-gap:12px}
  .nav-links{display:flex;order:3;width:100%;margin-left:0;overflow-x:auto;gap:20px;
    padding-top:11px;border-top:1px solid var(--line);scrollbar-width:none;-ms-overflow-style:none}
  .nav-links::-webkit-scrollbar{display:none}
  .nav-links a{font-size:11.5px}
  .nav-btn{margin-left:auto}
  .schema-lay{grid-template-columns:1fr;gap:36px;align-items:start}
  .arch-sec{grid-template-columns:1fr;gap:50px}
  .arch-sticky{position:static}
  .layer{margin-left:calc(var(--i) * 2%)}
  .eco-row{grid-template-columns:50px 1fr 1fr;gap:16px}
}
@media(max-width:760px){
  :root{--pad:22px}
  .nav-inner{padding:15px var(--pad);gap:12px}
  .brand{font-size:20px}
  .brand-sub{display:inline;font-size:8px}
  .nav-btn{padding:9px 12px;font-size:10px}
  .hero{min-height:auto}
  .hero-inner{padding:138px var(--pad) 22px}
  .hero-orb{right:-38%;top:38%;width:130vw;opacity:.72}
  .hero-veil{background:linear-gradient(180deg,rgba(10,10,14,.35) 0%,rgba(10,10,14,.72) 46%,var(--ink) 88%)}
  .hero-meta{font-size:9px;gap:12px}
  .hero-body{margin:56px 0 44px}
  .hero-title{font-size:clamp(30px,9vw,52px);letter-spacing:-.075em;line-height:1.02;animation:none}
  .hero-title .out{-webkit-text-stroke-width:1px}
  .hero-sub{font-size:13.5px;max-width:100%}
  .hero-ticker{grid-template-columns:1fr 1fr;gap:14px}
  .hero-ticker>div:nth-child(3){border-left:0;padding-left:0}
  .hero-ticker b{font-size:17px}
  .hero-edge,.scroll-hint{display:none}
  .btn{gap:20px;padding:13px 16px;font-size:12.5px}
  .marquee-track{gap:18px}
  .marquee-track span{font-size:15px}
  .chapter{padding:76px var(--pad)}
  .chap-head{font-size:9px;letter-spacing:.1em;gap:12px;flex-wrap:wrap}
  .mega,.statement{font-size:clamp(32px,8.6vw,56px);letter-spacing:-.06em}
  .lead{font-size:13.5px;line-height:1.8}
  .prow{grid-template-columns:42px 1fr;gap:10px 14px;padding:20px 0}
  .prow p{grid-column:2;grid-row:2;font-size:12.5px}
  .prow h3{font-size:19px}
  .schema-dims b{font-size:26px}
  .flow{grid-template-columns:1fr;gap:12px}
  .flow-steps{font-size:12.5px;gap:6px 10px}
  .pline{grid-template-columns:64px 1fr;gap:12px;padding:14px 4px}
  .pline-no{font-size:50px;-webkit-text-stroke-width:1px}
  .pline h3{font-size:18px}
  .pline h3 i{display:block;margin:5px 0 0;font-size:9px}
  .pline p{font-size:12.5px}
  .arch-sec{padding-top:76px;gap:36px}
  .arch-sticky h2{font-size:clamp(32px,8vw,50px)}
  .layer{grid-template-columns:38px 1fr;gap:8px 12px;margin-left:0;padding:16px 0 18px}
  .layer>span:last-child{grid-column:2;text-align:left;font-size:11.5px}
  .layer b{font-size:19px}
  .split{grid-template-columns:1fr;gap:22px}
  .mod{flex-basis:76vw;min-height:250px;padding:24px 20px 32px}
  .mod>span{font-size:48px}
  .mod h3{font-size:21px}
  .eco-row{grid-template-columns:40px 1fr;gap:8px 12px;padding:20px 0}
  .eco-row p{grid-column:2;font-size:12.5px}
  .eco-row h3{font-size:19px}
  .tok-bleed b{font-size:clamp(28px,8.6vw,50px)}
  .tok-facts{grid-template-columns:1fr;gap:0}
  .tok-facts>div{border-left:0;border-top:1px solid var(--line);padding:16px 0}
  .tok-facts b{font-size:26px}
  .alloc-bar{height:40px}
  .alloc-list{grid-template-columns:1fr}
  .alloc-list>div{grid-template-columns:9px 1fr auto;gap:10px;font-size:12px}
  .alloc-list em{display:block;grid-column:2 / -1;text-align:left;min-width:0;font-size:10px}
  .road{grid-template-columns:1fr;gap:0;border-top:0}
  .road-step{border-top:2px solid var(--paper);padding:22px 0 26px}
  .road-step::before{top:-7px}
  .risk{grid-template-columns:1fr;gap:12px}
  .faq-list summary{grid-template-columns:38px 1fr 16px;font-size:16px;gap:10px}
  .faq-list details p{padding-left:48px;font-size:12.5px}
  .cta h2{font-size:clamp(28px,7.4vw,46px)}
  .footer-top{grid-template-columns:1fr;gap:36px}
  .footer-cols{gap:14px}
  .footer-bottom{font-size:10px}
}

/* 無障礙：靜態態即成品，動效全部關閉 */
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
  .hero-orb{transform:translateY(-50%)!important}
  .hero-body{transform:none!important}
  .chap-no{transform:none!important}
}

/* ---------- 文字可讀性兜底：任何手機 WebView 都不出現透明字或糊字 ----------
   空心標題靠 -webkit-text-stroke + color:transparent；不支援該屬性的瀏覽器
   會把透明原樣保留而整行消失。以下讓所有環境至少有實色字形，描邊僅作增強。 */
@supports not (-webkit-text-stroke:1px black){
  .hero-title .out,.out{color:var(--paper)!important;-webkit-text-stroke:0!important}
  .invert .out-dark{color:var(--ink)!important;-webkit-text-stroke:0!important}
  .pline-no,.mod>span{color:rgba(240,238,230,.5)!important;-webkit-text-stroke:0!important}
}
@media(max-width:760px){
  /* 低 DPR 下 1px 描邊會糊成難辨字塊，手機一律改實色並保留明暗層次 */
  .hero-title .out,.out{color:var(--paper)!important;-webkit-text-stroke:0!important;
    text-shadow:0 2px 14px rgba(10,10,14,.95)}
  .hero-title .out{opacity:.8}
  .invert .out-dark{color:rgba(10,10,14,.62)!important;-webkit-text-stroke:0!important}
  .pline-no,.mod>span{color:rgba(240,238,230,.42)!important;-webkit-text-stroke:0!important}
  .hero-sub{text-shadow:0 1px 9px rgba(10,10,14,.95),0 0 3px rgba(10,10,14,.9)}
}