:root{--ink: #14231e;--ink-soft: #1d332a;--forest: #2e5145;--forest-light: #426c5c;--paper: #f6f2e9;--paper-deep: #ece3d3;--paper-card: #fbf8f1;--kraft: #c39a63;--kraft-light: #ddbf90;--clay: #a8472f;--white: #ffffff;--text: #1b2621;--muted: #6b746c;--line: rgba(20, 35, 30, .14);--line-light: rgba(255, 255, 255, .18);--font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", "Source Han Sans SC", sans-serif;--font-display: Georgia, "Times New Roman", "Songti SC", "STSong", serif;--container: 1240px;--header-h: 74px;--radius: 3px;--ease: cubic-bezier(.22, .61, .36, 1);--color-primary: #c39a63;--color-primary-dark: #a6804a;--color-bg: #f6f2e9;--color-surface: rgba(255, 255, 255, .7);--color-text: #1b2621;--color-text-muted: #6b746c;--color-border: rgba(20, 35, 30, .14);--font-serif: var(--font-display);--radius-lg: 12px;--radius-md: 4px;--transition-smooth: all .4s var(--ease)}*{margin:0;padding:0;box-sizing:border-box}html{scroll-padding-top:calc(var(--header-h) + 16px)}@media(prefers-reduced-motion:no-preference){html{scroll-behavior:smooth}}body{font-family:var(--font-sans);background:var(--paper);color:var(--text);line-height:1.7;font-size:16px;-webkit-font-smoothing:antialiased;overflow-x:hidden}h1,h2,h3,h4{font-weight:600;line-height:1.24;letter-spacing:-.015em}a{color:inherit;text-decoration:none;transition:color .25s var(--ease),background .25s var(--ease),border-color .25s var(--ease)}ul{list-style:none}img{max-width:100%;display:block}button{font-family:inherit}::selection{background:var(--kraft-light);color:var(--ink)}.container{width:min(var(--container),calc(100% - 64px));margin-inline:auto}.section{padding:108px 0}.section--tight{padding:76px 0}.section--dark{background:var(--ink);color:var(--paper)}.section--paper-deep{background:var(--paper-deep)}.eyebrow{display:inline-flex;align-items:center;gap:12px;font-size:11px;font-weight:700;letter-spacing:.24em;text-transform:uppercase;color:var(--clay)}.eyebrow:before{content:"";display:block;width:26px;height:1px;background:currentColor}.section--dark .eyebrow{color:var(--kraft-light)}.section-title{font-size:clamp(2rem,4.2vw,3.5rem);line-height:1.18;letter-spacing:-.03em;margin-top:22px}.section-title .accent{color:var(--forest-light)}.section--dark .section-title .accent{color:var(--kraft-light)}.lead{font-size:clamp(1rem,1.25vw,1.15rem);line-height:1.95;color:var(--muted);max-width:60ch}.section--dark .lead{color:#f6f2e9ad}.btn{display:inline-flex;align-items:center;justify-content:center;gap:14px;min-height:52px;padding:0 28px;border:1px solid transparent;border-radius:var(--radius);font-size:14px;font-weight:600;letter-spacing:.04em;cursor:pointer;transition:transform .3s var(--ease),background .3s var(--ease),color .3s var(--ease),border-color .3s var(--ease)}.btn .arrow{font-size:18px;line-height:1;transform:translate(0);transition:transform .3s var(--ease)}.btn:hover .arrow{transform:translate(5px)}.btn--solid{background:var(--ink);color:var(--white)}.btn--solid:hover{background:var(--forest);transform:translateY(-2px)}.btn--light{background:var(--paper);color:var(--ink)}.btn--light:hover{background:var(--white);transform:translateY(-2px)}.btn--outline{border-color:#ffffff6b;color:var(--white)}.btn--outline:hover{border-color:var(--white);background:#ffffff14;transform:translateY(-2px)}.btn--ghost{border-color:var(--line);color:var(--ink)}.btn--ghost:hover{border-color:var(--ink);background:var(--ink);color:var(--white);transform:translateY(-2px)}.rule{height:1px;background:var(--line);border:0}.section--dark .rule{background:var(--line-light)}.number-tag{font-family:var(--font-display);font-size:13px;letter-spacing:.12em;color:var(--kraft)}.image-frame{overflow:hidden;background:var(--paper-deep)}.image-frame img{width:100%;height:100%;object-fit:cover}.fade-in-up{opacity:0;transform:translateY(22px);transition:opacity .8s var(--ease),transform .8s var(--ease)}.fade-in-up.visible{opacity:1;transform:none}@media(prefers-reduced-motion:reduce){.fade-in-up{opacity:1;transform:none;transition:none}}.glass-effect{background:#ffffffb3;backdrop-filter:blur(12px);border:1px solid var(--line)}.section-padding{padding:8rem 0}.shell{width:min(960px,calc(100% - 32px));margin:0 auto;padding:24px 0 64px}.header{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:0 0 20px;border-bottom:1px solid var(--line)}.brand{font-size:1rem;font-weight:700}.site-nav{display:flex;gap:16px;flex-wrap:wrap}.site-nav a{color:var(--text);font-size:.95rem}.site-nav a.primary{font-weight:700}.main{padding-top:32px}.main>*+*{margin-top:40px}.footer{display:grid;gap:12px;margin-top:40px;padding-top:24px;border-top:1px solid var(--line)}.footer-copy,.footer-contact,.footer-meta{color:var(--muted);font-size:.95rem;line-height:1.7}.footer-links{display:flex;gap:16px;flex-wrap:wrap}.kicker,.meta{display:inline-block;margin-bottom:12px;color:var(--muted);font-size:.75rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase}.prose{color:var(--muted);font-size:.95rem;line-height:1.7;display:grid;gap:16px}.link-button{display:inline-flex;align-items:center;min-height:40px;padding:0 14px;border:1px solid var(--line);background:var(--white)}.link-button-secondary{color:var(--muted)}.section-head{display:grid;gap:8px}.simple-list{display:grid;gap:20px}.simple-item{display:grid;gap:12px;padding-top:20px;border-top:1px solid var(--line)}.simple-item:first-child{padding-top:0;border-top:0}.article-shell{max-width:720px}.actions{display:flex;gap:12px;flex-wrap:wrap}.page-section{display:grid;gap:16px}.intro,.section-head p,.simple-item p{color:var(--muted);font-size:.95rem;line-height:1.7}@media(max-width:900px){.header{align-items:flex-start;flex-direction:column}}@media(max-width:720px){.container{width:min(var(--container),calc(100% - 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