:root{color-scheme:dark;--ink:#f4f8ff;--muted:#a9b7c9;--line:rgba(224,241,255,.16);--blue:#a8d5ed;--glass:rgba(26,39,53,.72);--ease:cubic-bezier(.22,.75,.22,1)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#0c131e;color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;line-height:1.6;overflow-x:hidden}a{color:inherit;text-decoration:none}button,summary,a{-webkit-tap-highlight-color:transparent}a:focus-visible,summary:focus-visible{outline:2px solid #b7e3ff;outline-offset:4px}summary{cursor:pointer;list-style:none}summary::-webkit-details-marker{display:none}.ambient{position:fixed;z-index:-1;pointer-events:none;filter:blur(90px);opacity:.55;border-radius:50%}.ambient-one{width:340px;height:420px;top:3%;left:-180px;background:#173f67}.ambient-two{width:320px;height:480px;right:-220px;top:45%;background:#4b3e71}.skip{position:absolute;top:-100px;left:10px;z-index:100;background:white;color:black;padding:10px}.skip:focus{top:10px}.topbar{position:sticky;top:0;z-index:20;max-width:1120px;margin:0 auto;min-height:76px;padding:18px max(22px,env(safe-area-inset-left)) 12px;display:flex;justify-content:space-between;align-items:center;background:linear-gradient(180deg,rgba(12,19,30,.93),rgba(12,19,30,.45),transparent)}.brand{display:flex;gap:10px;align-items:center;font-size:15px;font-weight:650;letter-spacing:.01em;line-height:1.15}.brand-mark{display:grid;place-items:center;width:36px;height:36px;border-radius:12px;background:#daeafa;color:#132332;font-weight:700;font-size:18px;box-shadow:0 5px 18px #76a5c33d}.brand-light{font-weight:500;color:#c8d7e6}.brand small{display:block;margin-top:4px;color:#8195a7;font-size:8px;font-weight:600;letter-spacing:.18em}.menu{position:relative}.menu>summary{display:flex;align-items:center;gap:9px;background:rgba(241,248,255,.1);border:1px solid rgba(255,255,255,.14);padding:8px 12px;border-radius:99px;color:#dfeaf5;font-size:12px;backdrop-filter:blur(16px)}.menu-lines{font-size:13px}.menu nav{position:absolute;right:0;top:48px;width:192px;padding:8px;border-radius:18px;background:#202d3bea;border:1px solid var(--line);box-shadow:0 18px 50px #0008;backdrop-filter:blur(18px)}.menu nav a{display:block;padding:10px 12px;border-radius:10px;font-size:13px;color:#eaf4fd}.menu nav a:hover,.menu nav a:focus-visible{background:#ffffff17}.book{max-width:720px;margin:auto;padding:12px 18px 100px}.issue-line{display:flex;justify-content:space-between;padding:4px 4px 15px;color:#8c9dae;font-size:9px;letter-spacing:.15em;font-weight:600}.paper-card{position:relative;overflow:hidden;border:1px solid rgba(220,241,255,.2);border-radius:28px;background:linear-gradient(140deg,rgba(74,98,116,.62),rgba(29,41,54,.86) 60%,rgba(26,34,47,.92));box-shadow:0 24px 60px #02091671,inset 0 1px 0 #ffffff24;backdrop-filter:blur(22px);transform-origin:center bottom;scroll-margin-top:78px}.hero{min-height:690px;display:flex;flex-direction:column;justify-content:space-between;padding:22px 22px 28px;background:linear-gradient(155deg,rgba(78,112,134,.8),rgba(28,43,58,.94) 66%,rgba(18,30,43,.95))}.hero-top,.card-top{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;color:#b9cbd9;font-size:10px;letter-spacing:.15em;font-weight:600}.pill{letter-spacing:.05em;color:#dcebf3;border:1px solid #eaf7ff33;border-radius:99px;background:#d0efff12;padding:6px 10px;font-size:11px}.dot{display:inline-block;vertical-align:2px;width:6px;height:6px;border-radius:50%;background:#9fd9f4;margin-right:5px;box-shadow:0 0 10px #b4edff}.hero-orbit{position:absolute;top:78px;right:-6px;width:260px;height:260px;opacity:.77;transform:rotate(-20deg);pointer-events:none}.orbit{position:absolute;inset:25px;border:1px solid #d4efff4d;border-radius:50%;box-shadow:inset 0 0 22px #b6dafa24,0 0 28px #8cc7e029}.orbit-a{transform:rotateX(55deg)}.orbit-b{transform:rotateY(50deg) rotate(36deg)}.orbit-c{inset:60px;background:radial-gradient(circle at 30% 24%,#ecfaff,#8bb6cd 20%,#4f758b 48%,#1c3247 74%);box-shadow:inset -18px -20px 34px #102536a0,0 0 60px #abcce047;opacity:.8}.orbit-center{position:absolute;inset:0;display:grid;place-items:center;font-size:28px;font-weight:300;letter-spacing:.12em;color:#e8f7ff9e;transform:rotate(20deg)}.hero-content{z-index:1;padding-top:250px}.hero-kicker,.overline{font-size:10px;font-weight:650;color:#a6d5ec;letter-spacing:.14em}.hero-kicker span{color:#a3b5c4;letter-spacing:.05em}.hero h1{font-size:27px;line-height:1.38;letter-spacing:-.04em;margin:13px 0 14px;text-wrap:balance;font-weight:650}.hero-intro{font-size:14px;color:#d1dce5;line-height:1.75;margin:0 0 18px}.headline-detail>summary,.comment-detail>summary{display:flex;justify-content:space-between;align-items:center;color:#152936;background:#e0f0f9;font-size:13px;font-weight:650;border-radius:99px;padding:12px 17px}.headline-detail[open]>summary,.comment-detail[open]>summary{background:#d1e8f4}.headline-full,.comment-detail p{color:#e0e9f0;font-size:15px;line-height:1.9;margin:20px 1px}.source{font-size:12px!important;color:#a9bfd0!important;line-height:1.7}.next-link{display:inline-flex;gap:11px;align-items:center;margin-top:20px;color:#c7d7e2;font-size:12px}.section-spacer{display:flex;align-items:center;justify-content:center;gap:10px;color:#8496a7;font-size:11px;letter-spacing:.04em;padding:26px 0 28px}.chapter,.comment-card,.end-card{padding:24px 22px;margin-bottom:22px}.chapter-head{display:flex;gap:16px;align-items:flex-end;padding:35px 0 23px;border-bottom:1px solid var(--line)}.chapter-num{font-size:54px;line-height:1;font-weight:300;letter-spacing:-.08em;color:#d1e8f2}.chapter-head .overline{margin:0 0 4px;font-size:9px}.chapter-head h2{font-size:23px;line-height:1.2;letter-spacing:-.03em;margin:0;font-weight:650}.chapter-desc{color:#a4b7c6;font-size:11px;margin:7px 0 0}.story{padding:22px 0;border-bottom:1px solid var(--line)}.story-top{display:flex;justify-content:space-between;color:#aac5d6}.story-count{font-size:10px;letter-spacing:.12em}.story-arrow{font-size:18px}.story h3{font-size:17px;line-height:1.55;font-weight:600;letter-spacing:-.01em;margin:9px 0 8px;color:#f4f8fc}.story .teaser{font-size:13px;line-height:1.8;color:#adbfcc;margin:0 0 12px}.read-more{color:#c7e7fa;font-size:12px}.story-body{padding-top:10px;font-size:15px;line-height:1.95;color:#e3ecf1}.story-body p{margin:0}.story[open] .teaser{display:none}.story[open] .read-more{display:none}.page-bottom{padding-top:22px;display:flex;justify-content:space-between;gap:12px;color:#94aab9;font-size:10px;letter-spacing:.04em}.comment-card{min-height:420px;background:linear-gradient(155deg,#4b5267cf,#293343eb)}.comment-symbol{font-family:Georgia,serif;color:#bfdef0;font-size:100px;line-height:1;margin-top:44px;height:74px}.comment-card .overline{margin:15px 0 8px}.comment-card h2{font-size:26px;line-height:1.4;letter-spacing:-.03em;margin:0 0 24px}.comment-detail p{white-space:normal}.end-card{min-height:610px;display:flex;flex-direction:column}.end-content{margin:auto 0}.end-content h2{font-size:33px;line-height:1.35;letter-spacing:-.04em;margin:13px 0 17px}.end-content p:not(.overline){color:#bdd0dc;font-size:14px;line-height:1.9}.end-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:26px}.end-actions a{padding:11px 16px;border-radius:99px;font-size:12px}.end-actions .primary{background:#deeff9;color:#162936;font-weight:650}.end-actions .secondary{border:1px solid #dcecf64a}.logos{display:flex;align-items:center;gap:10px;margin-top:20px}.logos img{object-fit:contain;max-width:50px;height:27px;background:#ffffffde;border-radius:6px;padding:3px}.credits,.disclaimer{font-size:10px;color:#a4b8c6;margin:9px 0 0}.reading-progress{position:fixed;z-index:10;bottom:max(13px,env(safe-area-inset-bottom));left:50%;transform:translateX(-50%);display:flex;align-items:center;gap:12px;border:1px solid #ffffff22;background:#14212ddc;box-shadow:0 8px 28px #0008;backdrop-filter:blur(20px);border-radius:99px;padding:9px 13px;color:#b7cbd9;font-size:9px;letter-spacing:.08em;white-space:nowrap;pointer-events:none}.progress-track{width:74px;height:2px;background:#ffffff2e;border-radius:99px}.progress-track i{display:block;width:12.5%;height:100%;background:#b5e3fc;border-radius:99px;transition:width .4s var(--ease)}.paper-card.revealed{animation:turn-in .72s var(--ease) both}@keyframes turn-in{from{opacity:.85;transform:perspective(1000px) translateY(24px) rotateX(-3deg)}to{opacity:1;transform:perspective(1000px) translateY(0) rotateX(0)}}@supports not (backdrop-filter:blur(1px)){.paper-card,.menu nav,.reading-progress{background:#243341}}@media (min-width:700px){.topbar{padding-left:28px;padding-right:28px}.book{padding-left:24px;padding-right:24px}.hero{padding:34px 40px;min-height:690px}.hero-orbit{width:360px;height:360px;top:45px;right:20px}.hero-content{padding-top:250px;max-width:560px}.hero h1{font-size:36px}.chapter,.comment-card,.end-card{padding:32px 40px}.chapter-head h2{font-size:30px}.chapter-num{font-size:70px}.story h3{font-size:20px}.story .teaser{font-size:14px}.end-content h2{font-size:40px}}@media (max-width:360px){.hero h1{font-size:24px}.hero{min-height:660px}.hero-orbit{width:225px;height:225px}.hero-content{padding-top:215px}.paper-card{border-radius:24px}.book{padding-left:12px;padding-right:12px}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.paper-card.revealed{animation:none}.progress-track i{transition:none}}

/* Keep progress outside the reading area, enlarge touch target. */
.reading-progress { position:static; transform:none; width:max-content; margin:0 auto 4px; }
.menu>summary { min-height:44px; min-width:44px; }