:root{color-scheme:light;--ink:#493a2e;--muted:#776b5f;--accent:#69503d;--line:#e8e0d5;--paper:#fffcf7;--lake:#456b76}
*{box-sizing:border-box}html{min-height:100%}
body{margin:0;min-height:100svh;background:#f5f1e9;color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif}
button,a{-webkit-tap-highlight-color:transparent;touch-action:manipulation;font:inherit}button{cursor:pointer}
.page-top{width:min(1140px,calc(100% - 96px));height:100px;margin:auto;display:flex;align-items:center;justify-content:space-between;gap:20px}
.site-name{display:flex;align-items:center;gap:11px;color:var(--ink);text-decoration:none;font-size:17px;font-weight:750;letter-spacing:.06em}
.brand-icon{display:grid;place-items:center;width:40px;height:40px;background:#e9e1d3;border-radius:14px;color:var(--accent)}
.header-note{font-size:13px;color:var(--muted);letter-spacing:.08em}
main{max-width:1140px;margin:clamp(12px,3vh,36px) auto 0;padding-bottom:88px}
.resource-layout{display:grid;grid-template-columns:1.08fr 1fr;min-height:530px;border:1px solid #e9e2d6;border-radius:32px;overflow:hidden;box-shadow:0 18px 55px #7561490b;background:var(--paper)}
.illustration-panel{position:relative;isolation:isolate;min-height:530px;background:#dce8e2;overflow:hidden}
.hero-art{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:48% center;z-index:-2}
.illustration-panel::after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(180deg,#faf7eeeb,transparent 55%,#f2ecdf15)}
.art-caption{position:absolute;top:34px;left:34px;right:24px}
.art-label{font-size:10px;font-weight:700;letter-spacing:.19em;color:#6a766e}
.art-caption p{margin:15px 0 12px;font-size:32px;font-weight:700;line-height:1.4;letter-spacing:.04em;color:#405b57}
.art-note{display:none}
.download-card{display:flex;flex-direction:column;justify-content:center;padding:45px 44px}
.tag{display:inline-flex;align-items:center;align-self:flex-start;gap:8px;margin-bottom:24px;color:var(--lake);font-size:11px;font-weight:700;letter-spacing:.12em}
.tag span{width:6px;height:6px;border-radius:50%;background:#74929b}
h1{margin:0;font-size:clamp(28px,2.7vw,36px);line-height:1.4;font-weight:750;letter-spacing:-.025em}h1 span{display:block;color:#967256}
.subtitle{margin:18px 0 23px;color:var(--muted);font-size:14px;line-height:1.9}
.resource-meta{display:flex;align-items:center;gap:12px;margin-bottom:28px;font-size:11px;color:#827567}.resource-meta span+span{border-left:1px solid #dcd4c7;padding-left:12px}
.download{display:flex;align-items:center;justify-content:center;gap:10px;min-height:56px;padding:0 18px;border-radius:14px;background:var(--accent);color:#fffdf9;font-size:15px;font-weight:650;text-decoration:none;transition:background .18s,transform .18s;box-shadow:0 7px 16px #69503d16}
.download:hover{background:#533e2e;transform:translateY(-2px)}.download:active{transform:translateY(0)}.download-arrow{margin-left:auto;font-size:20px;font-weight:400;opacity:.85}.download svg{margin-right:auto}
.code-row{display:flex;align-items:center;gap:8px;margin-top:12px;padding:8px 10px 8px 16px;min-height:58px;border:1px dashed #dacfc0;border-radius:12px;font-size:12px;color:var(--muted);background:#f7f2ea}
.code-row strong{color:var(--ink);font-family:ui-monospace,monospace;font-size:17px;font-weight:600;letter-spacing:.08em;user-select:all}
.code-row button{margin-left:auto;min-width:52px;min-height:44px;padding:6px 11px;border:1px solid #e3d8ca;border-radius:9px;background:var(--paper);color:var(--accent);font-size:12px;font-weight:650}
.notice{margin:20px 0 0;color:var(--muted);font-size:11px;line-height:1.7}.page-bottom{text-align:center;margin:23px 0 0;color:#81786b;font-size:11px;letter-spacing:.1em}
.support-launcher{position:fixed;right:max(24px,env(safe-area-inset-right));bottom:max(22px,env(safe-area-inset-bottom));display:flex;align-items:center;gap:9px;padding:9px 18px 9px 10px;min-height:52px;border:1px solid #e1d6c5;border-radius:40px;background:#fffcf7f5;color:var(--accent);box-shadow:0 6px 22px #69503d13;backdrop-filter:blur(14px);font-size:13px;font-weight:650}
.support-icon{display:grid;place-items:center;width:32px;height:32px;border-radius:50%;background:#e9dfd0;color:var(--accent)}
dialog{position:fixed;width:min(410px,calc(100% - 32px));max-height:calc(100svh - 32px);overflow:auto;padding:30px;border:1px solid #eee4d7;border-radius:28px;background:var(--paper);color:var(--ink);box-shadow:0 30px 80px #35271f33}
dialog[open]{animation:rise .22s ease both}dialog::backdrop{background:#463a2f57;backdrop-filter:blur(8px)}body:has(dialog[open]){overflow:hidden}
.close{position:absolute;top:12px;right:12px;width:44px;height:44px;display:grid;place-items:center;border:0;border-radius:50%;background:#f2ece3;color:var(--muted)}
.kicker{display:flex;align-items:center;gap:8px;margin:0 0 10px;color:var(--lake);font-size:12px;font-weight:700}.kicker span{width:7px;height:7px;border-radius:50%;background:#7b9691;box-shadow:0 0 0 4px #7b969115}
h2{margin:0;padding-right:32px;font-size:27px;letter-spacing:-.03em}.modal-copy{margin:12px 0 20px;font-size:14px;line-height:1.8;color:var(--muted)}
.qr{display:block;width:min(230px,65vw);aspect-ratio:1;margin:0 auto;padding:12px;border:1px solid var(--line);border-radius:20px;background:white;box-shadow:0 8px 22px #7561490b}.qr img{display:block;width:100%;height:100%;object-fit:contain;border-radius:8px}
.scan-tip{margin:17px 0 6px;font-size:12px;text-align:center;color:var(--muted)}
.toast{position:fixed;left:50%;bottom:max(88px,calc(env(safe-area-inset-bottom) + 75px));z-index:50;padding:10px 16px;max-width:calc(100% - 28px);border-radius:14px;background:#493a2ef5;color:white;text-align:center;box-shadow:0 10px 25px #0002;font-size:14px;pointer-events:none;opacity:0;transform:translate(-50%,10px);transition:opacity .18s,transform .18s}.toast.visible{opacity:1;transform:translate(-50%,0)}
:focus-visible{outline:3px solid #648c97;outline-offset:4px}@keyframes rise{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}
@media(max-width:1236px){main{margin-left:48px;margin-right:48px}}
@media(max-width:850px){.download-card{padding:32px 26px}.art-caption{left:25px;top:27px}.art-caption p{font-size:28px}.desktop-break{display:none}}
@media(max-width:640px){.page-top{width:calc(100% - 36px);height:72px}.site-name{font-size:15px}.brand-icon{width:34px;height:34px;border-radius:11px}.header-note{font-size:10px;letter-spacing:0}main{margin:4px 16px 0;padding-bottom:92px}.resource-layout{display:flex;flex-direction:column;min-height:0;border-radius:24px}.illustration-panel{min-height:240px;height:240px}.hero-art{object-position:50% 57%}.illustration-panel::after{background:linear-gradient(90deg,#f9f5e8d6,transparent 70%)}.art-caption{top:24px;left:22px}.art-label{font-size:8px}.art-caption p{font-size:25px;margin:10px 0}.art-note{display:none}.download-card{padding:28px 24px 27px}.tag{margin-bottom:13px;font-size:10px}h1{font-size:28px;line-height:1.35}.subtitle{margin:14px 0 16px;font-size:13px}.resource-meta{margin-bottom:20px}.notice{font-size:10px;margin-top:16px}.page-bottom{font-size:10px;letter-spacing:.02em;margin-top:17px}dialog{padding:27px 23px 24px;border-radius:24px}.support-launcher{right:max(14px,env(safe-area-inset-right));bottom:max(14px,env(safe-area-inset-bottom))}}
@media(max-width:640px){.art-caption p{font-size:19px;margin-top:6px}.art-caption br{display:none}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}

/* Full-viewport illustration with an independent floating download card. */
body{isolation:isolate}
.page-top{width:auto;margin:0 clamp(20px,6vw,96px);height:92px}
.site-name{padding:8px 14px 8px 8px;border:1px solid #fff9;border-radius:18px;background:#fffaf1e8;box-shadow:0 4px 18px #493a2e0d;backdrop-filter:blur(12px)}
.header-note{padding:10px 15px;border-radius:40px;background:#fffaf1db;color:#574b3e;backdrop-filter:blur(12px)}
main{max-width:none;margin:18px clamp(20px,6vw,96px) 0;padding-bottom:110px}
.resource-layout{display:block;width:min(460px,100%);min-height:0;border:0;border-radius:0;overflow:visible;box-shadow:none;background:none}
.illustration-panel{position:fixed;inset:0;width:100%;height:100%;min-height:0;z-index:-1;background:#e7e4db;pointer-events:none}
.hero-art{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center;z-index:0}
.illustration-panel::after{inset:0;z-index:1;background:linear-gradient(90deg,#f8eed929,transparent 62%)}
.download-card{padding:36px;border:1px solid #fffaf2e0;border-radius:28px;background:linear-gradient(145deg,#fffcf7f2,#fff7e9e8);box-shadow:0 18px 55px #493a2e22;backdrop-filter:blur(18px)}
.page-bottom{width:min(460px,100%);margin:18px 0 0;padding:9px 14px;border-radius:12px;background:#fffaf1df;color:#645647;backdrop-filter:blur(8px)}
@media(max-width:640px){.page-top{margin:0 16px;height:78px}.site-name{gap:8px;padding:5px 10px 5px 5px;border-radius:14px}.header-note{display:none}main{margin:8px 16px 0;padding-bottom:100px}.resource-layout{display:block;min-height:0;border-radius:0}.illustration-panel{position:fixed;inset:0;height:100%;min-height:0}.hero-art{object-position:55% center}.illustration-panel::after{background:#f8eed90a}.download-card{padding:28px 24px;border-radius:24px}.page-bottom{font-size:10px;margin-top:15px}}