@import url("https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Instrument+Serif:ital@0;1&family=Noto+Sans+SC:wght@400;500;600;700;800&display=swap");
:root{
  --bg:#090909;
  --text:#f4f7f6;
  --muted:rgba(244,247,246,.58);
  --line:rgba(255,255,255,.11);
  --green:#a3e635;
  --pink:#f6a8c8;
  --violet:#a98cff;
  --gold:#ffd568;
  --ink:#141d05;
  --ease:cubic-bezier(.2,.8,.2,1);
}
*{box-sizing:border-box}
html{scroll-behavior:auto}
html.lenis,html.lenis body{height:auto}
.lenis.lenis-smooth{scroll-behavior:auto!important}
body{margin:0;background:var(--bg);color:var(--text);font-family:"DM Sans","Noto Sans SC",sans-serif;overflow-x:hidden}
body:not(.loaded){overflow:hidden}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
[hidden]{display:none!important}
::selection{background:var(--green);color:var(--ink)}

/* ——— 极光星云 + 粒子画布 + 噪点颗粒(全站固定背景)——— */
#aurora{position:fixed;inset:0;z-index:0;width:100%;height:100%;pointer-events:none;filter:blur(90px) saturate(1.35);transform:scale(1.15)}
#petals{position:fixed;inset:0;z-index:1;pointer-events:none}
.grain{position:fixed;inset:-50%;z-index:3;width:200%;height:200%;pointer-events:none;opacity:.055;mix-blend-mode:overlay;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");animation:grainShift 0.9s steps(2) infinite}
@keyframes grainShift{0%{transform:translate(0,0)}25%{transform:translate(-1.5%,1%)}50%{transform:translate(1%,-1.5%)}75%{transform:translate(-1%,1.5%)}100%{transform:translate(0,0)}}

/* ——— Loading ——— */
#loader{position:fixed;inset:0;z-index:200;display:grid;place-items:center;background:#090909;cursor:pointer;transition:opacity .85s ease,visibility .85s}
#loader.done{opacity:0;visibility:hidden;pointer-events:none}
#loaderCanvas{position:absolute;inset:0;width:100%;height:100%}
.loader-caption{position:absolute;bottom:8vh;left:50%;transform:translateX(-50%);margin:0;color:rgba(255,255,255,.42);font-size:10px;letter-spacing:.3em;white-space:nowrap;animation:captionPulse 1.6s ease-in-out infinite}
.loader-caption span{color:var(--green)}
@keyframes captionPulse{0%,100%{opacity:.45}50%{opacity:1}}

/* ——— Header ——— */
.site-header{position:fixed;z-index:60;top:0;left:0;right:0;height:72px;padding:0 clamp(20px,4vw,64px);display:flex;align-items:center;justify-content:space-between;background:linear-gradient(rgba(9,9,9,.65),transparent);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px)}
.site-brand{display:flex;align-items:center;gap:11px}
.brand-mark{width:30px;height:30px;flex:none}
.site-brand b{font-size:14px;letter-spacing:-.01em}
.brand-tag{margin-left:4px;padding:4px 9px;border:1px solid var(--line);border-radius:999px;color:var(--muted);font-size:9px;letter-spacing:.14em}
.header-right{display:flex;align-items:center;gap:26px}
.header-right>a:not(.header-cta){font-size:12px;color:var(--muted);transition:color .2s}
.header-right>a:not(.header-cta):hover{color:#fff}
.header-cta{padding:11px 20px;border-radius:999px;background:#fff;color:#090909;font-size:11px;font-weight:700;transition:transform .25s,box-shadow .25s}
.header-cta:hover{transform:scale(1.05);box-shadow:0 10px 30px rgba(255,255,255,.18)}
.header-cta i{margin-left:9px;font-style:normal}

/* ——— 章节胶囊(Editions 同款)——— */
#chapterPill{position:fixed;z-index:70;left:50%;bottom:22px;transform:translateX(-50%);display:flex;align-items:center;gap:14px;padding:13px 22px;border:none;border-radius:999px;background:#fff;color:#090909;font:600 12px "DM Sans","Noto Sans SC",sans-serif;letter-spacing:.02em;cursor:pointer;box-shadow:0 12px 40px rgba(0,0,0,.45);transition:transform .3s var(--ease)}
#chapterPill:hover{transform:translateX(-50%) scale(1.04)}
#chapterPill i{font-style:normal;font-size:14px;line-height:1}
#chapterMenu{position:fixed;z-index:69;left:50%;bottom:78px;transform:translateX(-50%) translateY(12px);display:flex;flex-direction:column;padding:10px;border:1px solid var(--line);border-radius:20px;background:rgba(14,14,14,.9);backdrop-filter:blur(20px);opacity:0;visibility:hidden;transition:.35s var(--ease)}
#chapterMenu.open{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}
#chapterMenu a{padding:10px 22px;border-radius:12px;font-size:12px;color:var(--muted);white-space:nowrap;transition:.2s}
#chapterMenu a:hover{background:rgba(255,255,255,.07);color:#fff}

/* ——— 通用 ——— */
main{position:relative;z-index:2}
section{position:relative}
.hero-eyebrow{display:flex;align-items:center;gap:10px;margin:0;color:var(--green);font-size:10px;letter-spacing:.25em;font-weight:700}
.hero-eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--green);box-shadow:0 0 0 5px rgba(163,230,53,.12)}
.hero-eyebrow em,.ed-manifesto p em{font-family:"Instrument Serif",Georgia,serif;font-style:italic;font-weight:400;font-size:clamp(19px,1.8vw,26px);letter-spacing:0;text-transform:none;color:#fff}
.primary-cta,.secondary-cta{display:inline-flex;align-items:center;justify-content:center;height:54px;padding:0 24px;border-radius:999px;font-size:12px;font-weight:700;transition:transform .25s,box-shadow .25s}
.primary-cta{background:var(--green);color:var(--ink);box-shadow:0 0 0 7px rgba(163,230,53,.07),0 16px 48px rgba(163,230,53,.16)}
.primary-cta:hover{transform:translateY(-2px) scale(1.02)}
.primary-cta span{margin-right:9px}
.secondary-cta{border:1px solid var(--line);background:rgba(255,255,255,.045);backdrop-filter:blur(10px)}
.secondary-cta:hover{transform:translateY(-2px)}
.secondary-cta span{margin-left:14px;color:var(--green)}
.h1-gradient{}
[data-split]{overflow:hidden}
[data-split] .ch{display:inline-block;will-change:transform}
[data-split] .ch.ac{color:var(--green)}

/* ——— HERO ——— */
.ed-hero{min-height:100svh;display:flex;flex-direction:column;justify-content:center;padding:120px clamp(24px,6vw,90px) 110px;overflow:hidden}
.word-field{position:absolute;inset:0;pointer-events:none;z-index:1}
.word-field span{position:absolute;font-family:"Instrument Serif",Georgia,serif;font-style:italic;font-size:clamp(40px,5.6vw,92px);color:rgba(255,255,255,.15);letter-spacing:-.02em;animation:wordFloat 9s ease-in-out infinite alternate}
.word-field span:nth-child(3n+1){color:rgba(163,230,53,.17)}
.word-field span:nth-child(4n+2){color:rgba(246,168,200,.15)}
.word-field span:nth-child(1){left:7%;top:16%;animation-duration:8.5s}
.word-field span:nth-child(2){left:74%;top:11%;animation-duration:10s;animation-delay:-2s}
.word-field span:nth-child(3){left:85%;top:44%;animation-duration:9s;animation-delay:-4s}
.word-field span:nth-child(4){left:5%;top:60%;animation-duration:11s;animation-delay:-1s}
.word-field span:nth-child(5){left:14%;top:85%;animation-duration:9.5s;animation-delay:-5s}
.word-field span:nth-child(6){left:78%;top:80%;animation-duration:8s;animation-delay:-3s}
.word-field span:nth-child(7){left:44%;top:7%;animation-duration:10.5s;animation-delay:-6s}
.word-field span:nth-child(8){left:58%;top:88%;animation-duration:9s;animation-delay:-2.5s}
@keyframes wordFloat{from{transform:translateY(-12px)}to{transform:translateY(14px)}}
.hero-inner{position:relative;z-index:3;max-width:1100px}
.hero-inner h1{margin:0;font-size:clamp(56px,8.6vw,138px);line-height:1.02;letter-spacing:-.06em;font-weight:800;text-shadow:0 4px 40px rgba(9,9,9,.6)}
.hero-inner .hero-eyebrow{margin-bottom:26px}
.hero-actions{display:flex;align-items:center;gap:13px;margin-top:38px}
.hero-sub{margin:24px 0 0;color:var(--muted);font-size:clamp(15px,1.5vw,19px);line-height:1.8}
.hero-trust{margin:18px 0 0;color:rgba(255,255,255,.42);font-size:11px;letter-spacing:.08em}
.hero-bottom{position:absolute;z-index:3;left:clamp(24px,6vw,90px);right:clamp(24px,6vw,90px);bottom:38px;display:flex;align-items:flex-end;justify-content:space-between;gap:30px}
.hero-bottom p{margin:0;color:var(--muted);font-size:12px;line-height:1.7}
.hero-index{display:flex;gap:26px}
.hero-index a{position:relative;padding-bottom:4px;font-size:12px;color:rgba(255,255,255,.75);transition:color .2s}
.hero-index a:after{content:"";position:absolute;left:0;bottom:0;width:100%;height:1px;background:#fff;transform:scaleX(.35);transform-origin:left;transition:transform .35s var(--ease)}
.hero-index a:hover{color:#fff}
.hero-index a:hover:after{transform:scaleX(1)}

/* ——— 章节 ——— */
.ed-chapter{height:280vh}
.chapter-stage{height:100svh;display:grid;grid-template-columns:1.1fr .9fr;align-items:center;gap:clamp(30px,5vw,80px);padding:110px clamp(24px,6vw,90px) 90px;overflow:hidden}
.ed-chapter.flip .chapter-copy{order:2}
.ed-chapter.flip .chapter-visual{order:1}
.chapter-num{display:block;font-family:"Instrument Serif",Georgia,serif;font-style:italic;font-size:clamp(15px,1.4vw,20px);color:rgba(255,255,255,.4);margin-bottom:18px}
.chapter-copy h2{margin:0;font-size:clamp(44px,5.6vw,92px);line-height:1.06;letter-spacing:-.055em;font-weight:800}
.chapter-text{max-width:480px;margin:26px 0 0;color:var(--muted);font-size:14px;line-height:1.9}
.chapter-visual{position:relative;display:grid;place-items:center}
.chapter-visual:before{content:"";position:absolute;inset:-10%;z-index:-1;border-radius:50%;filter:blur(80px);pointer-events:none}
#ch-see .chapter-visual:before{background:radial-gradient(circle,rgba(163,230,53,.32),transparent 65%)}
#ch-level .chapter-visual:before{background:radial-gradient(circle,rgba(246,168,200,.34),transparent 65%)}
#ch-card .chapter-visual:before{background:radial-gradient(circle,rgba(169,140,255,.36),transparent 65%)}
#ch-replay .chapter-visual:before{background:radial-gradient(circle,rgba(255,213,104,.32),transparent 65%)}
.visual-frame{position:relative;width:min(480px,100%);aspect-ratio:4/5;margin:0;overflow:visible;border-radius:28px}
.visual-frame img{width:100%;height:100%;object-fit:cover;border-radius:28px;box-shadow:inset 0 0 0 1px rgba(255,255,255,.09),inset 0 1px 0 rgba(255,255,255,.16),0 40px 90px rgba(0,0,0,.45),0 0 110px rgba(163,230,53,.08)}
.frame-live{position:absolute;top:16px;left:16px;display:flex;align-items:center;padding:8px 12px;border:1px solid var(--line);border-radius:999px;background:rgba(7,9,12,.55);backdrop-filter:blur(12px);font-size:8px;letter-spacing:.12em}
.frame-live i{width:6px;height:6px;margin-right:8px;border-radius:50%;background:#ff657d;box-shadow:0 0 0 5px rgba(255,101,125,.14)}
.frame-tag{position:absolute;padding:10px 13px 10px 30px;border:1px solid rgba(255,255,255,.1);border-radius:13px;background:rgba(12,12,14,.55);backdrop-filter:blur(14px) saturate(1.3);-webkit-backdrop-filter:blur(14px) saturate(1.3);box-shadow:inset 0 1px 0 rgba(255,255,255,.1),0 14px 34px rgba(0,0,0,.28)}
.frame-tag i{position:absolute;left:12px;top:15px;width:7px;height:7px;border-radius:50%;background:var(--gold);box-shadow:0 0 0 4px rgba(255,213,104,.15)}
.frame-tag b,.frame-tag small{display:block}
.frame-tag b{font-size:11px}
.frame-tag small{margin-top:3px;color:var(--muted);font-size:8px}
.frame-tag.tag-a{left:-30px;top:26%}
.frame-tag.tag-b{right:-24px;top:54%}
.frame-tag.tag-c{left:-18px;bottom:9%}
.frame-tag.tag-c i{background:var(--green);box-shadow:0 0 0 4px rgba(163,230,53,.15)}

/* ——— LevelLens:同一帧,三副水平眼镜 ——— */
.lens-card{--edge:rgba(246,168,200,.5)}
.lens-switch{display:flex;gap:7px;padding:5px;border:1px solid rgba(255,255,255,.08);border-radius:999px;background:rgba(0,0,0,.25)}
.lens-switch button{flex:1;height:36px;border:1px solid rgba(255,255,255,.14);border-radius:999px;background:rgba(8,9,12,.72);color:rgba(255,255,255,.92);font-size:10px;font-weight:700;letter-spacing:.06em;text-shadow:0 1px 2px rgba(0,0,0,.36);transition:background .25s,color .25s,border-color .25s}
.lens-switch button:hover,.lens-switch button:focus-visible{border-color:rgba(255,255,255,.48);background:rgba(255,255,255,.12);color:#fff;outline:none}
.lens-switch button.active{background:var(--green);color:var(--ink)}
.lens-words{margin-top:18px;display:flex;flex-direction:column;gap:10px}
.lens-words>div{display:flex;flex-direction:column;gap:10px}
.lens-words>div>div{display:flex;align-items:baseline;justify-content:space-between;gap:14px;padding:13px 15px;border:1px solid rgba(255,255,255,.07);border-radius:14px;background:rgba(255,255,255,.05);box-shadow:inset 0 1px 0 rgba(255,255,255,.06)}
.lens-words b{font-size:14px}
.lens-words small{color:var(--muted);font-size:9px;white-space:nowrap}
.lens-note{margin:16px 0 0;color:rgba(255,255,255,.38);font-size:9px;letter-spacing:.1em;text-align:center}

/* ——— FrameWordCard:帧词卡 ——— */
.fw-card{--edge:rgba(169,140,255,.55);padding:14px}
.fw-frame{position:relative;margin:0;overflow:hidden;border-radius:16px;aspect-ratio:16/10}
.fw-frame img{width:100%;height:100%;object-fit:cover;display:block}
.fw-source{position:absolute;left:10px;bottom:10px;padding:6px 10px;border-radius:8px;background:rgba(7,9,12,.62);backdrop-filter:blur(8px);font-size:8px;letter-spacing:.1em}
.fw-body{padding:16px 8px 8px}
.fw-body>b{display:block;font-size:24px;letter-spacing:-.03em}
.fw-meaning{display:block;margin-top:5px;color:var(--green);font-size:12px}
.fw-body p{margin:13px 0 0;font-size:12px;line-height:1.6}
.fw-body p small{display:block;margin-top:4px;color:var(--muted);font-size:10px}
.fw-save{width:100%;margin-top:16px;height:44px;border-radius:13px;background:var(--green);color:var(--ink);font-size:11px;font-weight:800;transition:transform .2s}
.fw-save:hover{transform:translateY(-2px)}

/* ——— ReplayTimeline:回看刻度 ——— */
.replay-card{--edge:rgba(255,213,104,.5);padding:14px}
.replay-frame{position:relative;margin:0;overflow:hidden;border-radius:16px;aspect-ratio:16/9}
.replay-frame img{width:100%;height:100%;object-fit:cover;display:block}
.replay-stamp{position:absolute;right:10px;top:10px;padding:5px 9px;border-radius:7px;background:rgba(7,9,12,.62);backdrop-filter:blur(8px);font-size:9px;letter-spacing:.08em;font-variant-numeric:tabular-nums}
.replay-track{position:relative;margin:22px 6px 0;height:44px}
.replay-progress{position:absolute;left:0;right:0;top:20px;height:3px;border-radius:3px;background:linear-gradient(90deg,var(--gold) 0 24%,rgba(255,255,255,.14) 24%)}
.replay-mark{position:absolute;left:var(--at);top:0;transform:translateX(-50%);display:flex;flex-direction:column;align-items:center;gap:7px}
.replay-mark i{width:9px;height:9px;margin-top:17px;border-radius:50%;background:var(--gold);box-shadow:0 0 0 4px rgba(255,213,104,.16)}
.replay-mark b{position:absolute;top:-4px;font-size:8px;font-weight:600;white-space:nowrap;color:rgba(255,255,255,.75)}
.replay-mark:nth-child(3) b{top:auto;bottom:-16px;color:var(--muted)}
.replay-note{margin:18px 0 6px;color:rgba(255,255,255,.38);font-size:9px;letter-spacing:.1em;text-align:center}

/* ——— 首页复习卡 + 收尾 ——— */
.review-home{display:flex;flex-direction:column;align-items:center;gap:14px;margin-bottom:64px}
.review-home-frame{position:relative;margin:0;width:min(560px,100%);overflow:hidden;border-radius:22px;border:1px solid rgba(255,255,255,.09);box-shadow:0 30px 80px rgba(0,0,0,.4)}
.review-home-frame img{width:100%;aspect-ratio:16/9;object-fit:cover;display:block}
.review-home-hint{position:absolute;left:12px;bottom:11px;padding:7px 12px;border-radius:9px;background:rgba(7,9,12,.66);backdrop-filter:blur(8px);font-size:10px}
.review-home-prompt{margin:0;color:var(--muted);font-size:12px}
.review-home-answer{text-align:center}
.review-home-answer b{display:block;font-size:clamp(26px,3vw,38px);letter-spacing:-.03em}
.review-home-answer span{color:var(--green);font-size:10px;letter-spacing:.12em}
.review-home-actions{min-height:48px;display:flex;align-items:center}
.rh-reveal{padding:12px 30px;border:1px solid var(--line);border-radius:999px;background:rgba(255,255,255,.05);backdrop-filter:blur(10px);font-size:11px;font-weight:700}
.rh-grade{display:flex;gap:10px}
.rh-grade button{height:46px;padding:0 30px;border-radius:999px;font-size:11px;font-weight:800}
.rh-grade button[data-grade="again"]{border:1px solid var(--line);background:rgba(255,255,255,.06)}
.rh-grade button[data-grade="known"]{background:var(--green);color:var(--ink)}
.cta-line{margin:0 0 22px;color:var(--muted);font-size:clamp(14px,1.4vw,17px)}
.float-card{--edge:rgba(163,230,53,.45);width:min(430px,100%);padding:26px;border:1px solid transparent;border-radius:24px;background:linear-gradient(165deg,rgba(34,34,40,.78),rgba(22,22,26,.62)) padding-box,linear-gradient(160deg,var(--edge),rgba(255,255,255,.06) 42%,rgba(255,255,255,.02)) border-box;backdrop-filter:blur(22px) saturate(1.35);-webkit-backdrop-filter:blur(22px) saturate(1.35);box-shadow:inset 0 1px 0 rgba(255,255,255,.13),0 24px 70px rgba(0,0,0,.38)}
.float-card>span{display:block}
.mission-card>span{color:var(--green);font-size:9px;letter-spacing:.18em;font-weight:700}
.mission-card>b{display:block;margin-top:12px;font-size:22px;letter-spacing:-.02em}
.mission-rec{margin-top:16px;padding:14px;border-radius:14px;background:rgba(255,255,255,.06);font-size:12px}
.mission-rec i{margin-right:8px;color:#ff657d;font-style:normal}
.card-cta{display:inline-flex;margin-top:18px;color:var(--green);font-size:12px;font-weight:700}
.feedback-card{position:relative;--edge:rgba(169,140,255,.55)}
.mini-score{position:absolute;right:20px;top:18px;display:grid;place-items:center;width:74px;height:74px;border:6px solid rgba(163,230,53,.16);border-top-color:var(--green);border-radius:50%}
.mini-score strong{font-size:22px}
.mini-score small{font-size:7px;color:var(--muted)}
.feedback-tag{display:inline-block;padding:7px 10px;border-radius:10px;background:rgba(255,213,104,.12);color:var(--gold);font-size:9px}
.feedback-better{margin-top:18px;padding:15px;border:1px solid rgba(163,230,53,.14);border-radius:14px;background:rgba(163,230,53,.06);box-shadow:inset 0 1px 0 rgba(163,230,53,.1)}
.feedback-better small,.feedback-better b{display:block}
.feedback-better small{color:var(--green);font-size:8px;letter-spacing:.12em}
.feedback-better b{margin-top:6px;font-size:14px}
.memory-card{display:flex;flex-direction:column;gap:10px;--edge:rgba(255,213,104,.5)}
.memory-on{align-self:flex-start;padding:7px 10px;border-radius:9px;background:rgba(163,230,53,.12);color:var(--green);font-size:8px;letter-spacing:.1em;font-weight:700}
.memory-card>div{padding:13px 15px;border:1px solid rgba(255,255,255,.07);border-radius:14px;background:rgba(255,255,255,.05);box-shadow:inset 0 1px 0 rgba(255,255,255,.06)}
.memory-card>div b,.memory-card>div small{display:block}
.memory-card>div b{font-size:13px}
.memory-card>div small{margin-top:4px;color:var(--muted);font-size:9px}

/* ——— 场景带(横向滚动)——— */
.ed-scenes{position:relative}
.scenes-pin{height:100svh;display:flex;flex-direction:column;justify-content:center;overflow:hidden;padding:100px 0 80px}
.scenes-head{padding:0 clamp(24px,6vw,90px);margin-bottom:44px}
.scenes-head h2{margin:14px 0 0;font-size:clamp(38px,4.6vw,74px);line-height:1.06;letter-spacing:-.05em;font-weight:800}
.scenes-track{display:flex;gap:18px;padding:0 clamp(24px,6vw,90px);will-change:transform}
.scene-card{position:relative;flex:none;width:clamp(300px,32vw,460px);aspect-ratio:4/5;overflow:hidden;border-radius:24px;background:#141414;box-shadow:inset 0 0 0 1px rgba(255,255,255,.07),0 30px 70px rgba(0,0,0,.35)}
.scene-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .8s var(--ease)}
.scene-card:hover img{transform:scale(1.06)}
.scene-card:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 38%,rgba(9,9,9,.94))}
.scene-meta{position:absolute;z-index:2;left:18px;right:18px;bottom:17px}
.scene-meta span{color:var(--green);font-size:8px;letter-spacing:.18em;font-weight:700}
.scene-meta b{display:block;margin-top:8px;font-size:19px;letter-spacing:-.02em}
.scene-meta small{display:block;margin-top:6px;color:var(--muted);font-size:11px}
.scene-cta{display:flex;flex-direction:column;align-items:flex-start;justify-content:center;gap:8px;padding:34px;background:linear-gradient(150deg,rgba(163,230,53,.12),rgba(246,168,200,.08))}
.scene-cta b{font-size:clamp(22px,2vw,30px);letter-spacing:-.03em}
.scene-cta .primary-cta{margin-top:22px}

/* ——— Manifesto / CTA ——— */
.ed-manifesto{min-height:90svh;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:120px 24px}
.ed-manifesto p{margin:0 0 20px;color:var(--green);font-size:10px;letter-spacing:.25em;font-weight:700}
.ed-manifesto h2{margin:0;font-size:clamp(40px,6vw,92px);line-height:1.12;letter-spacing:-.05em;font-weight:800}
.ed-cta{min-height:100svh;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:120px 24px}
.ed-cta h2{margin:0;font-size:clamp(52px,8vw,124px);line-height:1.02;letter-spacing:-.06em;font-weight:800}
.ed-cta .hero-eyebrow{margin-bottom:26px}
.ed-cta .hero-actions{justify-content:center}

/* ——— Footer ——— */
footer{position:relative;z-index:2;padding:70px clamp(24px,5vw,72px) 34px;border-top:1px solid var(--line);background:linear-gradient(rgba(9,9,9,.4),#090909 30%)}
.footer-top{display:flex;align-items:flex-end;justify-content:space-between;gap:36px;flex-wrap:wrap}
.footer-brand{display:flex;flex-direction:column;gap:12px}
.footer-brand em{font-family:"Instrument Serif",Georgia,serif;font-style:italic;color:rgba(255,255,255,.42);font-size:14px}
.footer-links{display:flex;gap:26px;flex-wrap:wrap}
.footer-links a{font-size:12px;color:var(--muted);transition:color .2s}
.footer-links a:hover{color:#fff}
.footer-top .primary-cta{height:46px;font-size:11px}
.footer-bottom{display:flex;justify-content:space-between;gap:16px;margin-top:56px;padding-top:22px;border-top:1px solid var(--line);color:rgba(255,255,255,.32);font-size:10px;letter-spacing:.12em}

/* ——— 响应式 ——— */
@media(max-width:900px){
  .site-header{height:62px;padding:0 18px}
  .header-right>a:not(.header-cta){display:none}
  .brand-tag{display:none}
  .header-cta{font-size:0;padding:11px 14px}
  .header-cta i{font-size:14px;margin:0}
  .ed-hero{padding:110px 22px 130px}
  .hero-bottom{flex-direction:column;align-items:flex-start;gap:18px;bottom:96px}
  .hero-index{flex-wrap:wrap;gap:16px}
  .ed-chapter{height:auto;min-height:100svh}
  .chapter-stage{height:auto;min-height:100svh;grid-template-columns:1fr;gap:44px;padding:100px 22px 70px;align-content:center}
  .ed-chapter.flip .chapter-copy{order:1}
  .ed-chapter.flip .chapter-visual{order:2}
  .frame-tag.tag-a{left:6px}
  .frame-tag.tag-b{right:6px}
  .frame-tag.tag-c{left:6px}
  .word-field span{font-size:clamp(30px,9vw,52px)}
  .hero-sub br{display:none}
  .scene-card{width:76vw}
  .footer-top{flex-direction:column;align-items:flex-start}
  #chapterPill{padding:11px 18px;font-size:11px}
}
@media(max-width:650px){
  .footer-bottom{flex-direction:column;gap:8px}
  .hero-actions{width:100%;flex-direction:column;align-items:stretch}
  .hero-actions a{width:100%}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  body:not(.loaded){overflow:auto}
  #loader{display:none}
}