*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%;font-feature-settings:"palt"}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",Helvetica,Arial,sans-serif;background:#fff7ed;color:#1c1917;line-height:1.7;font-size:15px}
a{color:#ea580c;text-decoration:none;transition:.2s}
a:hover{opacity:.78}
img{max-width:100%;display:block}
.container{max-width:1240px;margin:0 auto;padding:0 20px}

/* === TIMELINE TEMPLATE — 3m31.cn === */
body{background:#fff7ed}
.tl-bar{background:#1c1917;color:#fff;padding:16px 0;position:sticky;top:0;z-index:20}
.tl-bar .container{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.tl-logo{font-weight:900;font-size:20px;color:#fff}
.tl-logo span{color:#f59e0b}
.tl-bar nav{margin-left:auto;display:flex;gap:4px;flex-wrap:wrap}
.tl-bar nav a{color:#fdc;padding:6px 14px;border-radius:99px;font-size:14px;font-weight:600}
.tl-bar nav a:hover,.tl-bar nav a.active{background:#ea580c;color:#fff;opacity:1}
.tl-hero{padding:48px 0 24px;display:grid;grid-template-columns:1.4fr 1fr;gap:32px;align-items:center}
.tl-hero h1{font-size:34px;font-weight:900;line-height:1.25}
.tl-hero h1 em{font-style:normal;background:linear-gradient(120deg,#ea580c,#f59e0b);-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.tl-hero .tag{color:#56524c;margin-top:12px;font-size:15px}
.tl-hero .ph{border-radius:24px;overflow:hidden;aspect-ratio:5/4;box-shadow:0 30px 60px -30px #ea580c66}
.tl-hero .ph img{width:100%;height:100%;object-fit:cover}
.tl-section{margin:32px 0}
.tl-section h2{font-size:22px;font-weight:900;margin-bottom:6px;display:flex;align-items:center;gap:10px}
.tl-section h2::before{content:"";width:32px;height:4px;background:linear-gradient(90deg,#ea580c,#f59e0b);border-radius:2px}
.tl-section .sub{color:#7a7468;margin-bottom:18px;font-size:14px}
.tl-feed{position:relative;padding-left:32px;border-left:2px dashed #ea580c66}
.tl-entry{position:relative;background:#fff;border-radius:16px;padding:18px 20px;margin-bottom:18px;box-shadow:0 14px 36px -24px #ea580c55;display:grid;grid-template-columns:160px 1fr;gap:18px;align-items:center}
.tl-entry::before{content:"";position:absolute;left:-41px;top:24px;width:14px;height:14px;border-radius:50%;background:#ea580c;box-shadow:0 0 0 4px #fff7ed,0 0 0 6px #ea580c55}
.tl-entry .ph{aspect-ratio:4/3;border-radius:12px;overflow:hidden}
.tl-entry .ph img{width:100%;height:100%;object-fit:cover}
.tl-entry .when{font-size:11px;color:#ea580c;font-weight:800;letter-spacing:1px}
.tl-entry h3{font-size:17px;font-weight:800;margin:4px 0 6px}
.tl-entry p{color:#5b554c;font-size:14px}
.tl-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.tl-card{background:#fff;border-radius:16px;overflow:hidden;box-shadow:0 14px 36px -24px #ea580c55;transition:.2s}
.tl-card:hover{transform:translateY(-4px)}
.tl-card .ph{aspect-ratio:4/3;overflow:hidden}
.tl-card .ph img{width:100%;height:100%;object-fit:cover}
.tl-card .body{padding:14px 16px 18px}
.tl-card h4{font-size:15px;font-weight:800;margin-bottom:6px}
.tl-card .meta{font-size:12px;color:#8a8474}
.tl-eeat{background:linear-gradient(135deg,#fff,#f59e0b11);border-radius:24px;padding:28px 32px;margin:28px 0;border:1px solid #f59e0b55;position:relative}
.tl-eeat h2{font-size:20px;color:#ea580c;margin-bottom:12px;font-weight:900}
.tl-eeat p{color:#3d3a35;font-size:15px}
.tl-comments{margin:28px 0}
.tl-comments h2{font-size:18px;font-weight:900;margin-bottom:14px}
.tl-comment{background:#fff;border-radius:14px;padding:14px 18px;margin-bottom:10px;display:grid;grid-template-columns:auto 1fr;gap:12px;align-items:start}
.tl-comment .av{width:32px;height:32px;border-radius:8px;background:linear-gradient(135deg,#ea580c,#f59e0b);color:#fff;display:grid;place-items:center;font-weight:900;font-size:13px}
.tl-comment .who{font-weight:800;color:#ea580c;font-size:13px}
.tl-comment .what{color:#3d3a35;font-size:14px;margin-top:2px}
.tl-faq{background:#fff;border-radius:18px;padding:8px 22px;margin:24px 0;box-shadow:0 14px 40px -28px #ea580c55}
.tl-faq details{padding:14px 0;border-bottom:1px dashed #f0e6d8}
.tl-faq summary{cursor:pointer;font-weight:700}
.tl-faq p{padding-top:8px;color:#5b554c}
.tl-foot{margin-top:48px;padding:30px 0;background:#1c1917;color:#dcc8a8;font-size:13px}
.tl-foot a{color:#f59e0b}
@media(max-width:900px){.tl-hero{grid-template-columns:1fr}.tl-grid{grid-template-columns:1fr 1fr}.tl-entry{grid-template-columns:1fr}}
@media(max-width:560px){.tl-grid{grid-template-columns:1fr}.tl-feed{padding-left:18px}}