/* 稜線首頁（捲動敘事版）— build_home.py 原樣複製到 dist/assets/home.css。
   桌機：釘住畫面＋捲動驅動；手機（<860px）與減少動態：內容往下流動、進入畫面才觸發。
   圖片路徑相對於 dist/assets/。 */
:root{
  --ink:#141E2B;--ink0:#0E1620;--ink2:#2C4459;--mute:#3C5C71;--dim:#52748A;--steel:#6E8BA3;
  --paper:#F7F4EF;--paper2:#EFE7DA;--snow:#EEF3F6;--line:#E3DDD3;
  --gold:#DE9A45;--gold-t:#9C5E1E;--gold2:#F0B66A;
  --hline:rgba(190,203,213,.14);--hline2:rgba(190,203,213,.28);
  --serif:'Noto Serif TC',serif;--sans:'Noto Sans TC',sans-serif;--mono:'IBM Plex Mono',ui-monospace,monospace;
}
*{box-sizing:border-box;margin:0;padding:0}
body{background:var(--paper);color:var(--ink);font-family:var(--sans);-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}

/* nav */
.nav{position:fixed;top:0;left:0;right:0;z-index:40;height:clamp(76px,4.8vw,96px);display:flex;align-items:center;padding:0 clamp(44px,3vw,64px);gap:30px;color:#E6EDF2;transition:background .3s}
.nav.solid{background:rgba(14,22,32,.92);backdrop-filter:blur(10px)}
.brand{font:700 clamp(28px,2vw,40px) var(--serif);display:flex;align-items:center;gap:clamp(14px,.9vw,18px)}
.brand span{font:600 clamp(22px,1.55vw,31px) var(--serif);display:flex;flex-direction:column;line-height:1.05}
.brand small{font:500 clamp(11px,.72vw,14px) var(--mono);letter-spacing:.08em;opacity:.75;align-self:flex-end}
.nav-links{display:flex;gap:clamp(32px,2.2vw,44px);margin-left:auto;font-size:clamp(17px,1.12vw,22px);font-weight:500;opacity:.92}
.nav-links a:hover{color:var(--gold2)}
.nav-alt{display:none;margin-left:auto;font:500 11px var(--mono);letter-spacing:.08em;color:var(--gold2);white-space:nowrap}
.nav-bar{display:none;position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--gold);transition:width .2s linear}

/* altimeter */
.alt{position:fixed;right:36px;top:50%;transform:translateY(-50%);z-index:30;display:flex;flex-direction:column;align-items:flex-end;gap:20px;opacity:0;transition:opacity .4s;pointer-events:none}
.alt.on{opacity:1}
.alt .read{text-align:right;font:500 12px var(--mono);letter-spacing:.16em;color:var(--alt-c,#52748A)}
.alt .read b{display:block;font:600 34px/1.1 var(--mono);letter-spacing:0;color:var(--alt-b,#141E2B);font-variant-numeric:tabular-nums;margin:4px 0 2px}
.alt .scale{position:relative;width:3px;height:380px;background:var(--alt-l,rgba(82,116,138,.25));margin-right:8px}
.alt .fill{position:absolute;bottom:0;left:0;width:3px;background:var(--gold)}
.alt .camp{position:absolute;left:-7px;width:17px;height:17px;border-radius:50%;border:2px solid #BECBD5;background:var(--alt-bg,#F7F4EF);transform:translateY(50%);transition:all .3s}
.alt .camp.on{border-color:var(--gold);background:var(--gold)}
.alt .camp.cur{box-shadow:0 0 0 5px rgba(222,154,69,.22)}
.alt .camp span{position:absolute;right:28px;top:50%;transform:translateY(-50%);font:500 14px var(--sans);letter-spacing:.04em;color:var(--alt-c,#52748A);white-space:nowrap;transition:color .3s}
.alt .camp span i{font:500 11px var(--mono);font-style:normal;margin-right:8px;opacity:.8}
.alt .camp.on span{color:var(--alt-b,#141E2B)}
.alt .camp.cur span{font-weight:700}

/* hero：線條減量、拿掉格線 */
.hero{position:relative;height:100vh;height:100svh;min-height:620px;display:flex;align-items:center;overflow:hidden;background:var(--ink0);color:#E6EDF2}
/* 六座山輪播（沿用現行首頁的六張圖與 8 秒節奏）；瞄準圈由 JS 對準每座山的山頂 */
.hero-bg{position:absolute;inset:0 0 0 28%}
.hero-bg .slide{position:absolute;inset:0;background-position:center;background-size:cover;filter:saturate(.8) brightness(.85);opacity:0;transition:opacity 1.4s ease}
.hero-bg .slide.on{opacity:1}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,var(--ink0) 0%,rgba(14,22,32,.55) 30%,rgba(14,22,32,.05) 70%,rgba(14,22,32,.45)),linear-gradient(0deg,var(--ink0) 0%,transparent 28%)}
#contour{position:absolute;inset:0;width:100%;height:100%;pointer-events:none}
.reticle{position:absolute;left:73%;top:30%;width:110px;height:110px;transform:translate(-50%,-50%);border:1px solid rgba(222,154,69,.7);border-radius:50%;transition:left 1s ease,top 1s ease}
.reticle::before,.reticle::after{content:"";position:absolute;background:rgba(222,154,69,.7)}
.reticle::before{left:50%;top:-16px;bottom:-16px;width:1px}.reticle::after{top:50%;left:-16px;right:-16px;height:1px}
.reticle-tag{position:absolute;right:0;top:0;font:500 12px/1.6 var(--mono);color:var(--gold2);border-right:1px solid var(--gold);padding-right:10px;white-space:nowrap;text-align:right;transition:right 1s ease,top 1s ease,opacity .5s}
.reticle-tag b{display:block;font:600 18px var(--serif);color:#E6EDF2}
.hero-ctl{position:absolute;right:34px;bottom:30px;z-index:3;display:flex;align-items:center;gap:14px}
.dots{display:flex;gap:8px}.dots i{width:7px;height:7px;border-radius:50%;background:rgba(190,203,213,.4);transition:background .3s}.dots i.on{background:var(--gold)}
.pause{font:500 12px var(--mono);color:#BECBD5;background:transparent;border:1px solid var(--hline2);border-radius:6px;padding:7px 10px;cursor:pointer;min-height:32px}
.pause:hover{border-color:var(--gold);color:#fff}
.hero-copy{position:relative;z-index:2;padding-left:clamp(20px,8vw,150px);max-width:900px}
.eyebrow{font:500 13px/1 var(--mono);letter-spacing:.18em;text-transform:uppercase;display:flex;align-items:center;gap:12px;color:var(--gold)}
.eyebrow::before{content:"";width:28px;height:1px;background:currentColor}
.hero h1{font:900 clamp(44px,5.6vw,98px)/1.12 var(--serif);margin:28px 0 24px}
.hero h1 em,.big em{font-style:normal;color:var(--gold)}
.hero .lead{font-size:clamp(17px,1.35vw,25px);color:#C9D6E0;line-height:1.7}
.hero .btns{justify-content:flex-start;margin-top:36px}
.hero .btn{font-size:17px;min-height:54px;padding:0 28px}
.hero .status{display:inline-flex;align-items:center;gap:10px;margin-top:30px;font:500 13px var(--mono);letter-spacing:.04em;color:#92A9BA}
.hero .status i{width:9px;height:9px;border-radius:50%;background:#5FB98A;animation:ping 2s infinite}
@keyframes ping{0%{box-shadow:0 0 0 0 rgba(95,185,138,.6)}70%,100%{box-shadow:0 0 0 9px rgba(95,185,138,0)}}
.scroll-cue{position:absolute;left:50%;bottom:34px;transform:translateX(-50%);font:500 11px var(--mono);letter-spacing:.2em;color:#92A9BA;text-align:center}
.scroll-cue i{display:block;width:1px;height:46px;margin:10px auto 0;background:linear-gradient(var(--gold),transparent);animation:cue 1.8s infinite}
@keyframes cue{0%{transform:scaleY(0);transform-origin:top}50%{transform:scaleY(1);transform-origin:top}51%{transform-origin:bottom}100%{transform:scaleY(0);transform-origin:bottom}}

/* chapters */
.ch{position:relative}
.stick{position:sticky;top:0;height:100vh;overflow:hidden;display:flex;align-items:center;justify-content:center}
/* A：章節標頭（電腦版進入該營時大、內容出現後縮成小標頭） */
.chap-label{position:absolute;left:clamp(20px,6vw,90px);top:clamp(104px,6.6vw,128px);display:flex;gap:clamp(14px,1.2vw,22px);align-items:flex-end;z-index:5;transition:transform .45s ease}
.chap-label .cn{font:600 clamp(56px,5vw,92px)/.82 var(--mono);letter-spacing:-.04em;opacity:.38;transition:font-size .45s ease,opacity .45s}
.chap-label .ct{display:flex;flex-direction:column;gap:4px;padding-bottom:4px}
.chap-label .ck{font:500 12px var(--mono);letter-spacing:.24em}
.chap-label b{font:900 clamp(30px,2.5vw,46px)/1.1 var(--serif);letter-spacing:.04em;color:var(--lab-b,var(--ink));transition:font-size .45s ease}
.chap-label small{font:500 clamp(14px,1vw,17px)/1.5 var(--sans);color:var(--lab-s,var(--mute));max-height:3em;overflow:hidden;transition:max-height .45s,opacity .35s}
.chap-label.compact .cn{font-size:30px;opacity:.5}
.chap-label.compact b{font-size:20px}
.chap-label.compact small{max-height:0;opacity:0}
#ch3 .chap-label,#ch5 .chap-label{--lab-b:#fff;--lab-s:#BECBD5}
/* B：營地之間的山稜線分隔帶 */
.ridge{position:relative;height:clamp(64px,6vw,104px);background:var(--rp);overflow:visible;z-index:6}
.ridge svg{position:absolute;inset:0;width:100%;height:100%;display:block}
.ridge .rtag{position:absolute;bottom:10px;left:var(--pk);transform:translateX(-50%);font:600 12px var(--mono);letter-spacing:.08em;white-space:nowrap;background:var(--gold);color:#1a1205;padding:6px 12px;border-radius:999px;box-shadow:0 6px 18px rgba(0,0,0,.25)}
.ridge .rtag::after{display:none;content:"";position:absolute;left:50%;top:100%;width:1px;height:12px;background:var(--gold)}
.big{font:900 clamp(32px,4.6vw,64px)/1.28 var(--serif);text-align:center}
.sub{font-size:clamp(15px,1.4vw,18px);text-align:center;margin-top:18px;line-height:1.7;padding:0 20px}
.go{display:inline-flex;align-items:center;gap:10px;margin-top:26px;font-weight:700;font-size:16px;border-bottom:2px solid var(--gold);padding-bottom:4px}
.layer{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center}

/* ch1 找方法 */
#ch1{background:var(--paper);height:300vh}
#ch1 .chap-label{color:var(--gold-t)}
.works{display:flex;flex-wrap:wrap;justify-content:center;gap:12px 14px;margin-top:40px;max-width:820px;padding:0 20px}
.works span{font:700 clamp(17px,1.8vw,23px) var(--serif);padding:11px 22px;border-radius:999px;border:1.5px solid #D2CABD;color:var(--mute);opacity:0;transition:background .3s,color .3s,border-color .3s}
.works span.on{background:var(--ink);border-color:var(--ink);color:#fff}
.story{display:grid;grid-template-columns:1fr 1.1fr;gap:56px;align-items:center;width:min(1080px,calc(100vw - 360px))}
.scene .tag,.solve .tag{font:600 12px var(--mono);letter-spacing:.2em;color:var(--gold-t)}
.bubble{position:relative;margin:18px 0 22px;background:var(--ink);color:#fff;border-radius:22px 22px 22px 6px;padding:26px 28px;font:700 clamp(22px,2.4vw,32px)/1.45 var(--serif)}
.bubble small{display:block;font:500 13px var(--sans);color:#92A9BA;margin-top:10px}
.scene p{font-size:16.5px;line-height:1.85;color:var(--mute)}
.scene p b{color:var(--ink)}
.solve h3{font:900 clamp(26px,2.6vw,36px)/1.3 var(--serif);margin:12px 0 22px}
.step{display:grid;grid-template-columns:52px 1fr;gap:16px;align-items:start;padding:16px 0;border-top:1px solid var(--line)}
.step .who{font:700 13px var(--sans);text-align:center;padding:6px 0;border-radius:8px;background:#fff;border:1.5px solid #D2CABD;color:var(--ink2)}
.step .who.ai{background:var(--gold);border-color:var(--gold);color:#1a1205}
.step b{display:block;font:700 18px var(--serif)}
.step span{display:block;font-size:15px;color:var(--mute);margin-top:4px;line-height:1.7}
.result{margin-top:18px;padding:18px 20px;border-radius:14px;background:#fff;box-shadow:0 20px 40px -26px rgba(20,30,43,.4);font-size:16.5px;line-height:1.7}
.result b{color:var(--gold-t)}

/* ch2 找靈感 */
#ch2{background:var(--paper2);height:240vh}
#ch2 .chap-label{color:var(--gold-t)}
.marq{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:center;gap:2vh;pointer-events:none}
.marq .row{white-space:nowrap;font:900 clamp(40px,7vw,104px)/1.1 var(--serif);color:transparent;-webkit-text-stroke:1px rgba(20,30,43,.16);will-change:transform}
.marq .row span{margin-right:.6em}
.marq .row span.hl{color:rgba(156,94,30,.8);-webkit-text-stroke:0}
.c-center{position:relative;z-index:2;text-align:center;padding:30px 40px;border-radius:24px;background:radial-gradient(closest-side,rgba(239,231,218,.95),rgba(239,231,218,.75) 70%,rgba(239,231,218,0))}
.c-num{font:600 clamp(90px,14vw,200px)/1 var(--mono);color:var(--ink);letter-spacing:-.04em}

/* ch3 找作品 */
#ch3{background:var(--ink0);color:#E6EDF2;height:300vh}
#ch3 .chap-label{color:var(--gold)}
.w-wrap{display:grid;grid-template-columns:1fr auto 1fr;gap:5vw;align-items:center;width:min(1080px,calc(100vw - 360px))}
.w-names,.w-sides{position:relative;height:260px}
.w-name,.w-side{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:center;opacity:0}
.w-name .fam{font:500 12px var(--mono);letter-spacing:.18em;color:var(--gold)}
.w-name b{font:900 clamp(30px,3.4vw,48px)/1.2 var(--serif);margin:12px 0}
.w-name p{color:#BECBD5;font-size:17px;line-height:1.7}
.w-side{align-items:flex-end;text-align:right}
.w-side img{width:200px;height:110px;object-fit:contain;filter:brightness(0) invert(.92) sepia(.25)}
.w-side b{font:700 22px var(--serif);margin-top:12px}
.w-side span{font:500 12px var(--mono);color:#92A9BA;margin-top:4px}
.phone{position:relative;height:min(640px,calc(100vh - 210px));aspect-ratio:390/844;border-radius:40px;padding:10px;background:linear-gradient(160deg,#3a4c5e,#121b26 50%,#2b3a4a);box-shadow:0 60px 120px -30px rgba(0,0,0,.8),inset 0 0 0 1px rgba(255,255,255,.1);will-change:transform}
.phone::before{content:"";position:absolute;top:16px;left:50%;transform:translateX(-50%);width:28%;height:20px;border-radius:12px;background:#05080c;z-index:3}
.screen{position:relative;width:100%;height:100%;border-radius:30px;overflow:hidden;background:#000}
.screen img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:top;opacity:0}

/* ch4 找工具：四層地基 */
#ch4{background:var(--snow);height:380vh}
#ch4 .chap-label{color:var(--ink2)}
.strata{width:min(1180px,calc(100vw - 360px));border-radius:0 0 18px 18px;overflow:hidden;box-shadow:0 40px 80px -40px rgba(20,30,43,.5)}
.stratum{display:grid;grid-template-columns:150px 1fr 250px;gap:26px;align-items:center;padding:24px 32px;border-top:1px solid rgba(44,68,89,.14);opacity:0;transform:translateY(16px)}
.stratum:first-child{border-top:0;padding-top:58px;clip-path:polygon(0 100%,0 46%,8% 30%,16% 38%,26% 14%,35% 28%,45% 4%,54% 24%,62% 14%,72% 32%,81% 18%,90% 30%,100% 12%,100% 100%)}
.stratum .sl{font:500 11px var(--mono);letter-spacing:.2em;color:var(--dim)}
.stratum .sl b{display:block;font:700 26px var(--serif);color:var(--ink);letter-spacing:0;margin-top:4px}
.stratum .st{display:flex;flex-wrap:wrap;gap:8px}
.stratum .st span{font-size:16px;padding:9px 14px;border-radius:8px;background:rgba(255,255,255,.8);border:1px solid rgba(44,68,89,.14);color:var(--ink)}
.stratum .st span i{font:600 13px var(--mono);font-style:normal;color:var(--gold-t);margin-left:6px}
.stratum .sn{font-size:15px;color:var(--mute);line-height:1.6;border-left:2px solid var(--gold);padding-left:12px}
.rule{width:min(920px,calc(100vw - 360px));text-align:center}
.rule .big{font-size:clamp(28px,3.8vw,52px)}
.evs{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:40px;text-align:left}
.ev{background:#fff;border-radius:14px;padding:20px 22px;border-top:3px solid var(--gold);opacity:0;transform:translateY(16px)}
.ev b{display:block;font:700 17px var(--serif);margin-bottom:8px}
.ev p{font-size:14.5px;color:var(--mute);line-height:1.7}

/* footer（正式版必備三塊） */
.foot{background:var(--ink0);color:#C9D6E0;padding:90px 0 60px}
.foot-grid{width:min(1080px,calc(100vw - 48px));margin:0 auto;display:grid;grid-template-columns:1.2fr 1fr;gap:60px}
.foot .eyebrow{color:var(--gold)}
.foot h3{font:700 26px var(--serif);color:#fff;margin:14px 0 12px}
.foot p{font-size:16px;line-height:1.8;margin-bottom:10px}
.foot p.hl{color:var(--gold2);font-weight:700}
.foot .go{color:#fff;margin-top:8px}
.about-row{display:flex;gap:28px;align-items:flex-start}
.avatar{width:132px;height:132px;border-radius:50%;object-fit:cover;flex:none;border:2px solid rgba(222,154,69,.5);box-shadow:0 10px 30px rgba(0,0,0,.4)}
.legal{width:min(1080px,calc(100vw - 48px));margin:56px auto 0;padding-top:26px;border-top:1px solid var(--hline);font-size:12.5px;color:#7F94A6;line-height:1.75}
.legal .mini{font-size:13.5px;color:#92A9BA;margin-bottom:12px}
.legal-fold summary{cursor:pointer;list-style:none;display:inline-flex;gap:12px;align-items:center;font-size:12.5px;color:#92A9BA;min-height:32px}
.legal-fold summary::-webkit-details-marker{display:none}
.legal-fold summary span{font:500 11px var(--mono);border:1px solid var(--hline2);border-radius:4px;padding:3px 8px;color:#BECBD5}
.legal-fold summary span::after{content:" ▾"}.legal-fold[open] summary span::after{content:" ▴"}
.legal-fold>div{margin-top:10px;padding-left:12px;border-left:1px solid var(--hline)}
.legal b{color:#C9D6E0}
.legal .links{display:flex;gap:22px;margin-top:16px;flex-wrap:wrap}
.legal .links a{text-decoration:underline;text-underline-offset:3px}
.legal .sig{margin-top:26px;font:500 14px var(--serif);color:#E6EDF2;display:flex;align-items:center;gap:14px}
.legal .sig::before{content:"";width:40px;height:1px;background:var(--gold)}

/* ch5 找觀念：星空筆記（每顆星＝一篇文章） */
#ch5{background:radial-gradient(ellipse at 50% 120%,#1B2A3A,#0A1018 70%);color:#E6EDF2;height:400vh}
#ch5 .chap-label{color:var(--gold)}
#sky{position:absolute;inset:0;width:100%;height:100%}
.k-layer{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;z-index:2;pointer-events:none}
.k-layer .big{text-shadow:0 4px 30px rgba(0,0,0,.7)}
.note{position:absolute;left:50%;top:58%;width:min(640px,86vw);transform:translateX(-50%);z-index:3;opacity:0;text-align:left;
  background:rgba(14,22,32,.78);backdrop-filter:blur(6px);border:1px solid rgba(222,154,69,.35);border-radius:16px;padding:24px 28px}
.note .meta{display:flex;gap:12px;align-items:center;font:500 12px var(--mono);color:#92A9BA}
.note .meta i{font-style:normal;font:700 12px var(--sans);color:#1a1205;background:var(--gold);border-radius:4px;padding:2px 8px}
.note h3{font:700 clamp(21px,2.3vw,30px)/1.45 var(--serif);margin:12px 0 8px;color:#fff}
.note p{font-size:15px;line-height:1.75;color:#BECBD5}

/* summit */
.summit{position:relative;height:100vh;min-height:620px;display:flex;align-items:center;justify-content:center;text-align:center;color:#fff;overflow:hidden}
.summit .bg{position:absolute;inset:0;background:url(featured/hero-matterhorn-pyramid.webp) center 30%/cover}
.summit .bg::after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(14,22,32,.85),rgba(14,22,32,.25) 60%,rgba(14,22,32,.6))}
.summit .in{position:relative;padding:0 20px}
.summit .alt-final{font:500 13px var(--mono);letter-spacing:.25em;color:var(--gold2)}
.summit h2{font:900 clamp(40px,6vw,80px)/1.2 var(--serif);margin:20px 0 34px}
.summit h2 em{font-style:normal;color:var(--gold)}
.btns{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;min-height:52px;padding:0 26px;border-radius:6px;font-weight:700}
.btn.pri{background:var(--gold);color:#1a1205}
.btn.ghost{border:1px solid rgba(255,255,255,.4)}
.summit .sig{position:absolute;bottom:30px;left:0;right:0;font:500 14px var(--serif);color:#BECBD5;display:flex;justify-content:center;align-items:center;gap:14px}
.summit .sig::before,.summit .sig::after{content:"";width:40px;height:1px;background:var(--gold)}

/* 手機版作品卡：左右滑 */
.w-carousel{display:none;gap:18px;overflow-x:auto;scroll-snap-type:x mandatory;padding:10px 20px 26px;scrollbar-width:none;-webkit-overflow-scrolling:touch}
.w-carousel::-webkit-scrollbar{display:none}
.w-card{flex:0 0 72vw;max-width:300px;scroll-snap-align:center;text-align:center}
.w-card .phone{width:100%;height:auto;aspect-ratio:390/844;padding:7px;border-radius:30px}
.w-card .screen{border-radius:24px}
.w-card .screen img{position:static;opacity:1;display:block}
.w-card .fam{display:block;margin-top:14px;font:500 11px var(--mono);letter-spacing:.14em;color:var(--gold)}
.w-card b{display:block;font:700 21px var(--serif);margin:6px 0 4px}
.w-card p{font-size:14px;line-height:1.6;color:#BECBD5;padding:0 6px}

@media (max-width:860px){
  .nav{padding:0 16px;height:56px;background:rgba(14,22,32,.94);backdrop-filter:blur(10px)}.nav-links{display:none}
  .brand{font-size:20px;gap:9px}.brand span{font-size:15px}.brand small{font-size:9px}
  .hero{min-height:560px}.hero-bg{inset:0}.reticle{width:84px;height:84px}
  .reticle-tag{left:20px;right:auto!important;top:auto!important;bottom:56px;text-align:left;border-right:0;border-left:1px solid var(--gold);padding:0 0 0 10px;font-size:11px}.reticle-tag b{font-size:15px}
  .scroll-cue{display:none}
  .hero-copy{padding:0 20px}.hero .eyebrow{font-size:clamp(9px,2.6vw,11px);letter-spacing:.1em;white-space:nowrap}.hero .btn{min-height:48px;padding:0 20px;font-size:15px}.hero .status{font-size:11px}.hero .btns{margin-top:26px}
  .hero-ctl{right:16px;bottom:22px}.pause{display:none}
  .story{grid-template-columns:1fr;gap:22px;width:92vw}
  .bubble{padding:20px 22px}
  .step{grid-template-columns:44px 1fr;padding:12px 0}.step b{font-size:16px}.step span{font-size:14px}
  .strata{width:92vw}
  .stratum{grid-template-columns:1fr;gap:8px;padding:14px 14px}
  .stratum:first-child{padding-top:44px}
  .stratum .sl{display:flex;align-items:baseline;gap:10px}.stratum .sl b{font-size:18px;margin:0}
  .stratum .st span{font-size:13px;padding:6px 10px}
  .stratum .sn{display:none}
  .rule{width:92vw}
  .evs{grid-template-columns:1fr;gap:10px;margin-top:22px}.ev{padding:14px 16px}
  .foot-grid{grid-template-columns:1fr;gap:40px}.about-row{flex-direction:column;gap:16px}.avatar{width:96px;height:96px}
}
@media (min-width:861px) and (max-height:820px){
  .story{margin-top:40px}.solve h3{margin:6px 0 10px}.step{padding:10px 0}.step span{font-size:14px}
  .bubble{padding:20px 24px;margin:12px 0 14px}.result{margin-top:10px;padding:12px 16px}.result .go{margin-top:10px}
}

/* 靜態模式：手機（<860px）或作業系統「減少動態」。版面由 CSS 媒體查詢直接決定，不靠 JS 判斷；JS 只跟著同一個查詢走 */
@media (max-width:860px),(prefers-reduced-motion:reduce){
  .ch{height:auto!important}
  .stick{position:relative;height:auto;min-height:0;display:block;padding:44px 0 56px;overflow:visible}
  .chap-label{position:static;padding:0 20px;margin-bottom:18px}
  .chap-label .cn{font-size:44px}.chap-label b{font-size:28px}.chap-label small{font-size:14px}
  .ridge .rtag{font-size:11px;padding:5px 10px;bottom:8px;top:auto}.ridge .rtag::after{display:none}
  .layer,.k-layer,.w-name,.w-side,.note{position:static;opacity:1;transform:none;pointer-events:auto}
  .layer,.k-layer{display:flex;flex-direction:column;align-items:center;padding:22px 20px}
  .k-layer,#kNotes{position:relative;z-index:2}
  .works span,.stratum,.ev{opacity:1;transform:none}
  .story,.tool{margin:0 auto}
  .w-wrap{display:none}.w-carousel{display:flex}
  .note{margin:14px auto;left:auto;width:min(640px,92vw)}
  .alt{display:none}
  .nav-alt{display:block}.nav-bar{display:block}
  #ch2 .stick{padding:90px 0;overflow:hidden}
  .c-center{position:relative;z-index:2;padding:30px 20px}
  .marq{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:center;gap:1vh}
  .marq .row{animation:marq 70s linear infinite}
  .marq .row:nth-child(even){animation-direction:reverse}
  /* 手機直向：照片改以山頂為準裁切，不然只剩中間的雲 */
  .hero-bg .slide{background-position:var(--px,70%) 35%}
}
@keyframes marq{to{transform:translateX(-50%)}}
body.static:not(.noanim) .rv{opacity:0;transform:translateY(16px);transition:opacity .6s ease,transform .6s ease}
body.static:not(.noanim) .rv.in{opacity:1;transform:none}
body.noanim .marq .row,body.noanim .scroll-cue i{animation:none}
@media (prefers-reduced-motion:reduce){.scroll-cue i,.marq .row{animation:none}}

/* ── 正式版附加 ───────────────────────────────── */
.rl-skip{position:absolute;left:12px;top:-60px;z-index:60;background:var(--gold);color:#1a1205;padding:10px 14px;border-radius:6px;font-weight:700}
.rl-skip:focus{top:12px}
.go:focus-visible,.btn:focus-visible,.nav a:focus-visible{outline:2px solid var(--gold2);outline-offset:3px}
/* 訂閱元件（subscribe_block.py 共用元件）放進深色頁尾 */
#subscribe-sec{padding:0}
.foot .rl-subscribe{background:transparent;border:0;padding:0;margin:0;max-width:none;box-shadow:none}
.foot .rl-sub-inner{padding:0;max-width:none;background:transparent;border:0}
.foot .rl-sub-head{font:700 26px var(--serif);color:#fff;margin:14px 0 12px}
.foot .rl-sub-p,.foot .rl-sub-legal,.foot .rl-sub-note{color:#C9D6E0}
.foot .rl-sub-legal{font-size:12.5px;color:#92A9BA}
.foot .rl-sub-legal a{color:#BECBD5}
.foot .rl-sub-form input{background:rgba(255,255,255,.06);border:1px solid var(--hline2);color:#fff;min-height:48px}
/* 法律區塊：共用 LEGAL_BLOCK 全文，預設收合 */
.legal-fold .rl-legal{background:transparent;border:0;padding:0;margin:0;order:0;color:#92A9BA;font-size:12.5px;line-height:1.75}
.legal-fold .rl-legal-in{max-width:none;padding:0}
.legal-fold .rl-legal b{color:#C9D6E0}
.legal-fold .rl-legal-links{display:none}
.chap-label small .cs{display:block;font:500 12px var(--mono);letter-spacing:.06em;opacity:.85;margin-top:2px}
.w-card a,.note a{color:inherit}
.note h3 a:hover{color:var(--gold2)}
noscript .ns{display:block;max-width:760px;margin:0 auto;padding:30px 20px;color:#C9D6E0}
/* 斷行：單一個字不能成行。標題用 .nw 片語只在標點後換行＋balance；內文用 pretty 避免最後一行只剩一兩個字 */
.nw{white-space:nowrap;display:inline-block}
h1,h2,h3,.big,.result,.w-name b,.w-card b,.note h3,.ev b,.chap-label small{text-wrap:balance}
p,.sub,.scene p,.step span,.ev p,.note p,.w-name p,.w-card p,.stratum .sn,.foot p{text-wrap:pretty}
@media (max-width:860px){.stratum:first-child{padding-top:76px}.chap-label small{max-width:260px}}

/* 找工具地基圖讓出營地標頭的位置（桌機） */
@media (min-width:861px){#tStrata{padding-top:clamp(120px,15vh,170px)}}
@media (min-width:861px) and (max-height:820px){#tStrata{padding-top:118px}.stratum{padding:13px 28px}.stratum:first-child{padding-top:46px}.stratum .st span{font-size:14.5px;padding:6px 12px}.stratum .sl b{font-size:22px}}