:root{--ink:#1a1a1a;--mut:#5b5b5b;--bg:#ffffff;--soft:#f6f4f1;--line:#e6e1da;--brand:#7a4a2b;--brand2:#a9713f;--cta:#b3412a;--cta2:#93331f;--gold:#c9a227}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.65;font-size:16px}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}
/* top quick CTA */
.topbar{background:var(--ink);color:#fff;font-size:14px}
.topbar .wrap{display:flex;justify-content:space-between;align-items:center;gap:12px;padding-top:8px;padding-bottom:8px;flex-wrap:wrap}
.topbar a{color:#ffd9a8;font-weight:600}
/* header */
header.site{border-bottom:1px solid var(--line);position:sticky;top:0;background:#fff;z-index:50}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;padding-top:14px;padding-bottom:14px}
.logo{font-size:24px;font-weight:800;letter-spacing:.5px;color:var(--ink)}
.logo span{color:var(--brand)}
nav.main a{margin-left:22px;color:var(--ink);font-size:15px}
nav.main a:hover{color:var(--brand)}
/* hero */
.hero{display:grid;grid-template-columns:1.1fr .9fr;gap:36px;align-items:center;padding:56px 0 40px}
.hero h1{font-size:40px;line-height:1.2;margin-bottom:16px}
.hero p.lead{font-size:18px;color:var(--mut);margin-bottom:22px}
.hero img{border-radius:14px;box-shadow:0 12px 30px rgba(0,0,0,.18)}
.btn{display:inline-block;background:var(--cta);color:#fff;padding:13px 26px;border-radius:8px;font-weight:700;font-size:16px}
.btn:hover{background:var(--cta2);text-decoration:none}
.btn.ghost{background:transparent;color:var(--brand);border:2px solid var(--brand)}
.btn.ghost:hover{background:var(--soft)}
.cta-row{display:flex;gap:14px;flex-wrap:wrap}
/* trust bar */
.trust{background:var(--soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.trust .wrap{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;padding-top:26px;padding-bottom:26px;text-align:center}
.trust b{display:block;font-size:26px;color:var(--brand)}
.trust span{font-size:14px;color:var(--mut)}
/* sections */
section.block{padding:52px 0}
section.block h2{font-size:30px;margin-bottom:8px}
section.block .sub{color:var(--mut);margin-bottom:28px;font-size:17px}
/* cards */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.card{border:1px solid var(--line);border-radius:12px;overflow:hidden;background:#fff;transition:box-shadow .2s}
.card:hover{box-shadow:0 8px 22px rgba(0,0,0,.08)}
.card img{aspect-ratio:1/1;object-fit:cover;width:100%}
.card .pad{padding:16px 18px 20px}
.card h3{font-size:18px;margin-bottom:6px}
.card p{font-size:14px;color:var(--mut)}
.card a.more{display:inline-block;margin-top:10px;font-weight:600;font-size:14px}
/* steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;counter-reset:s}
.step{background:var(--soft);border-radius:12px;padding:20px}
.step b{display:block;font-size:17px;margin-bottom:6px}
.step::before{counter-increment:s;content:"0" counter(s);font-size:26px;font-weight:800;color:var(--gold);display:block;margin-bottom:8px}
.step p{font-size:14px;color:var(--mut)}
/* vs table */
table.vs{width:100%;border-collapse:collapse;font-size:15px}
table.vs th,table.vs td{border:1px solid var(--line);padding:12px 14px;text-align:left;vertical-align:top}
table.vs th{background:var(--soft);width:28%}
table.vs td.good{color:#1e7a34;font-weight:600}
/* faq */
details.faq{border:1px solid var(--line);border-radius:10px;margin-bottom:12px;padding:14px 18px;background:#fff}
details.faq summary{font-weight:700;cursor:pointer;font-size:16px}
details.faq p{margin-top:10px;color:var(--mut);font-size:15px}
/* bottom CTA */
.bottomcta{background:linear-gradient(135deg,#241a14,#4a2c18);color:#fff;text-align:center}
.bottomcta .wrap{padding-top:56px;padding-bottom:56px}
.bottomcta h2{font-size:32px;margin-bottom:12px}
.bottomcta p{color:#e9d9c8;margin-bottom:24px;font-size:17px}
.bottomcta .btn{font-size:18px;padding:15px 34px}
/* footer */
footer.site{background:var(--ink);color:#bdb5ab;font-size:14px}
footer.site .wrap{padding-top:36px;padding-bottom:36px;display:grid;grid-template-columns:2fr 1fr 1fr;gap:26px}
footer.site h4{color:#fff;margin-bottom:10px;font-size:15px}
footer.site a{color:#bdb5ab;display:block;margin-bottom:6px}
footer.site a:hover{color:#fff}
.meta{font-size:13px;color:#8d857b;margin-top:26px}
/* toc */
.toc{background:var(--soft);border:1px solid var(--line);border-radius:10px;padding:16px 20px;margin:26px 0}
.toc b{display:block;margin-bottom:8px;font-size:14px;letter-spacing:.4px;text-transform:uppercase;color:var(--mut)}
.toc a{display:inline-block;margin-right:16px;font-size:14px}
/* breadcrumbs */
.crumbs{font-size:13px;color:var(--mut);padding:14px 0 0}
/* article */
article.page{padding:34px 0 10px}
article.page h1{font-size:34px;line-height:1.25;margin-bottom:14px}
article.page h2{font-size:24px;margin:34px 0 12px}
article.page h3{font-size:19px;margin:26px 0 10px}
article.page p{margin-bottom:14px;color:#333}
article.page ul,article.page ol{margin:0 0 14px 22px;color:#333}
article.page li{margin-bottom:6px}
.byline{font-size:13px;color:var(--mut);margin-bottom:20px}
.note{background:#fdf6ec;border:1px solid #f0dfbd;border-radius:10px;padding:14px 18px;font-size:14px;color:#6b5320;margin:18px 0}
@media(max-width:860px){.hero{grid-template-columns:1fr}.hero h1{font-size:30px}.cards{grid-template-columns:1fr 1fr}.trust .wrap{grid-template-columns:1fr 1fr}.steps{grid-template-columns:1fr 1fr}footer.site .wrap{grid-template-columns:1fr}}
@media(max-width:560px){.cards{grid-template-columns:1fr}.steps{grid-template-columns:1fr}}

/* kicker — hero 上方小标签 */
.kicker{font-size:13px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--brand2);margin:0 0 10px}
/* card 内链形态 */
.cards a.card{text-decoration:none;color:inherit;transition:transform .18s ease,box-shadow .18s ease}
.cards a.card:hover{transform:translateY(-3px);box-shadow:0 10px 28px rgba(26,26,26,.10)}
/* steps 单格 */
.steps>div{background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px 18px}
.steps>div h3{margin:0 0 8px;font-size:17px}
.steps>div p{margin:0;font-size:14.5px;color:#4a423b;line-height:1.65}
/* footer 段落与链接 */
footer.site p{font-size:14px;line-height:1.7;margin:6px 0}