:root{--ink:#2b2925;--muted:#746f67;--paper:#f8f5ef;--panel:#fffdf9;--line:#ddd5ca;--terra:#a75f4d;--terra-soft:#f1e2dc;--olive:#87916e;--shadow:0 16px 34px rgba(76,56,42,.11)}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;color:var(--ink);background:var(--paper);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","微软雅黑",Arial,Helvetica,sans-serif;line-height:1.75}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%;height:auto}

.site-header{background:var(--paper);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10}
.header-inner,.container{width:min(1160px,calc(100% - 40px));margin:0 auto}
.header-inner{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:inline-flex;align-items:center;gap:12px;font-weight:700;letter-spacing:.03em}
.brand img{width:40px;height:40px;border-radius:7px}
.nav{display:flex;gap:26px;align-items:center;font-size:14px;color:var(--muted)}
.nav a:hover{color:var(--terra)}
.download{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 20px;border-radius:6px;background:var(--terra);color:#fff;font-weight:700}
.download:hover{background:#914b3c}
.menu-toggle{display:none;border:1px solid var(--line);background:var(--panel);border-radius:6px;width:40px;height:40px;font-size:18px}

.hero{padding:66px 0 50px}
.hero-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(380px,520px);align-items:center;gap:72px}
.eyebrow{color:var(--terra);font-size:13px;font-weight:700;letter-spacing:.12em}
.hero h1,.page-hero h1{font-size:clamp(36px,5vw,62px);line-height:1.2;letter-spacing:-.03em;margin:12px 0 0}
.hero-copy p{max-width:580px;color:var(--muted);font-size:17px;margin:24px 0 28px}
.hero-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.text-link{color:var(--terra);font-weight:700}
.ledger{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:32px;padding-top:22px;border-top:1px solid var(--line)}
.ledger span{display:block;color:var(--muted);font-size:12px}
.ledger strong{display:block;font-size:17px}
.hero-media{position:relative;padding:22px 0 20px 24px}
.hero-media:before{content:"";position:absolute;inset:0 0 0 18%;background:var(--terra-soft);border-left:5px solid var(--terra)}
.filmstrip{position:relative;z-index:1;display:grid;grid-template-columns:1fr .82fr .82fr;align-items:end;gap:14px}
.filmstrip figure{margin:0;background:var(--panel);padding:12px;border:1px solid var(--line);box-shadow:var(--shadow)}
.filmstrip figure:nth-child(2){transform:translateY(-22px)}
.filmstrip figure:nth-child(3){transform:translateY(18px)}
.filmstrip img{width:100%;max-width:280px;margin:auto}
.filmstrip figcaption{font-size:12px;color:var(--muted);margin-top:8px}
.archive-label{position:absolute;left:0;top:18px;z-index:2;background:var(--olive);color:#fff;padding:8px 12px;font-size:12px;letter-spacing:.06em}

.section{padding:84px 0}
.section.alt{background:#f0ebe3}
.section-heading{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:30px}
.section-heading h2{font-size:clamp(26px,3vw,38px);line-height:1.25}
.section-heading p{max-width:520px;color:var(--muted);margin:0}
.benefits{display:grid;grid-template-columns:1.2fr .8fr;gap:22px}
.benefit-list{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.benefit{padding:22px;background:var(--panel);border:1px solid var(--line)}
.benefit b{color:var(--terra);font-size:13px}
.benefit h3{font-size:19px;margin:8px 0}
.benefit p{font-size:14px;color:var(--muted);margin:0}
.quote-panel{padding:28px;background:var(--ink);color:#fff}
.quote-panel p{color:#e5ddd3;margin:0}
.quote-panel strong{display:block;margin-top:16px;color:#f2cbbd}
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.gallery figure{margin:0;background:var(--panel);border:1px solid var(--line);padding:14px}
.gallery figure:nth-child(2){margin-top:30px}
.gallery img{width:100%;max-width:300px;margin:auto}
.gallery figcaption{font-size:13px;color:var(--muted);margin-top:10px}
.support-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.support{padding:24px 0;border-top:2px solid var(--terra)}
.support h3{font-size:19px;margin:0 0 8px}
.support p{font-size:14px;color:var(--muted);margin:0}
.cta{padding:72px 0}
.cta-box{display:flex;justify-content:space-between;align-items:center;gap:24px;padding:36px 40px;background:var(--terra);color:#fff}
.cta-box p{color:#f5ded6;margin:8px 0 0}
.cta-box .download{background:#fff;color:var(--terra)}
.page-hero{padding:72px 0 44px;background:var(--terra-soft)}
.page-hero p{max-width:700px;color:var(--muted);margin:20px 0 0}
.content{padding:56px 0 84px;max-width:900px}
.content h2{font-size:28px;margin:42px 0 16px}
.content h3{font-size:19px;margin:26px 0 8px}
.content p,.content li{color:#554f47}
.content ul,.content ol{padding-left:24px}
.faq-list{display:grid;gap:12px}
details{background:var(--panel);border:1px solid var(--line);padding:18px 20px}
summary{cursor:pointer;font-weight:700}
details p{color:var(--muted);margin:12px 0 0}
.site-footer{padding:34px 0;border-top:1px solid var(--line);color:var(--muted);font-size:13px}
.footer-inner{display:flex;justify-content:space-between;gap:20px;align-items:center}
.copyright{margin:4px 0}

@media(max-width:820px){.header-inner,.container{width:min(100% - 28px,620px)}
.header-inner{min-height:66px}
.menu-toggle{display:inline-flex;align-items:center;justify-content:center}
.nav{display:none;position:absolute;top:66px;left:14px;right:14px;padding:14px;flex-direction:column;align-items:stretch;gap:0;background:var(--panel);border:1px solid var(--line);box-shadow:var(--shadow)}
.nav.is-open{display:flex}
.nav a{padding:10px 6px}
.nav .download{text-align:center;margin-top:8px}
.hero{padding:32px 0 18px}
.hero-grid{grid-template-columns:1fr;gap:18px}
.hero-copy p{font-size:16px}
.hero-media{padding-left:14px}
.filmstrip{gap:8px}
.filmstrip figure{padding:8px}
.filmstrip img{max-height:180px;width:auto;max-width:100%}
.filmstrip figure:nth-child(2),.filmstrip figure:nth-child(3){transform:none}
.ledger{gap:8px}
.benefits,.benefit-list,.gallery,.support-grid{grid-template-columns:1fr}
.gallery figure:nth-child(2){margin-top:0}
.section{padding:58px 0}
.section-heading{display:block}
.section-heading p{margin-top:12px}
.cta-box,.footer-inner{display:block}
.cta-box .download{margin-top:20px}
.footer-nav{margin-top:12px}
}