:root{
  --ink:#2a2320;--paper:#faf6f2;--card:#fff;--line:#e9ddd3;
  --brand:#e15a26;--brand2:#f0c040;--dark:#2b2118;--mut:#7a6f66;--maxw:1160px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;line-height:1.8}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
ul.list{margin:14px 0 0 22px}
ul.list li{margin-bottom:10px}
b,strong{color:var(--dark)}

header.site{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line)}
.top{display:flex;align-items:center;justify-content:space-between;height:70px}
.logo{display:flex;align-items:center;gap:10px;font-weight:900}
.logo .sun{width:40px;height:40px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(135deg,#f0c040,#e15a26);color:#fff;font-size:1.5rem;line-height:1}
.logo .word{font-size:1.35rem;color:var(--dark)}
.logo .word small{display:block;font-size:.58rem;font-weight:700;color:var(--brand);letter-spacing:.18em;text-transform:uppercase}
nav.main{display:flex;gap:9px;align-items:center;font-size:.9rem}
nav.main a{padding:7px 13px;border-radius:8px;color:var(--mut);font-weight:600}
nav.main a.active{background:var(--brand);color:#fff}
nav.main a:not(.active):hover{background:#f4ece6;color:var(--ink)}
.nav-toggle{display:none;background:none;border:0;font-size:1.7rem;color:var(--dark);cursor:pointer}

.btn{display:inline-block;background:var(--brand);color:#fff;padding:12px 28px;border-radius:999px;font-weight:800;font-size:.95rem;transition:transform .15s,box-shadow .15s}
.btn:hover{transform:translateY(-2px);box-shadow:0 10px 22px rgba(225,90,38,.3)}
.btn.ghost{background:transparent;color:var(--brand);border:2px solid var(--brand)}
.btn.dark{background:var(--dark);color:#fff}
.btn.sm{padding:8px 16px;font-size:.84rem}

.hero{padding:66px 0 56px;background:linear-gradient(150deg,#2b2118,#43352a 60%,#5a442f);color:#fff;overflow:hidden}
.hero .wrap{display:grid;grid-template-columns:1.2fr .8fr;gap:40px;align-items:center}
.eyebrow{display:inline-block;background:rgba(240,192,64,.18);border:1px solid rgba(240,192,64,.5);color:var(--brand2);font-weight:800;font-size:.8rem;padding:5px 14px;border-radius:999px;margin-bottom:16px}
.hero h1{font-size:clamp(2rem,5.2vw,3.4rem);line-height:1.12;font-weight:900}
.hero h1 em{font-style:normal;color:var(--brand2)}
.hero .sub{margin:20px 0 0;max-width:640px;color:#e9ddd2;font-size:1.05rem}
.hero .cta-row{margin-top:28px;display:flex;gap:14px;flex-wrap:wrap}
.hero .btn{background:var(--brand2);color:#2b2118}
.hero .btn.ghost{color:#fff;border-color:rgba(255,255,255,.6)}
.shelf{display:flex;flex-direction:column;gap:12px}
.shelf .row{display:flex;gap:12px}
.gcard{flex:1;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);border-radius:12px;padding:18px;min-height:110px}
.gcard .n{font-size:1.7rem;font-weight:900;color:var(--brand2);font-family:ui-monospace,monospace}
.gcard span{font-size:.8rem;color:#e9ddd2}

section.blk{padding:60px 0}
section.blk.alt{background:#f1e9e2}
h2.sec{font-size:1.7rem;font-weight:900;margin-bottom:10px;color:var(--dark)}
p.sec-sub{color:var(--mut);margin-bottom:30px;max-width:680px}
.grid{display:grid;gap:20px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:24px;box-shadow:0 6px 18px rgba(80,40,20,.05)}
.card .ic{width:44px;height:44px;border-radius:12px;background:#fbe7dc;color:var(--brand);display:grid;place-items:center;font-size:1.2rem;font-weight:900;margin-bottom:12px}
.card h3{font-size:1.1rem;margin-bottom:8px;color:var(--dark)}
.card p{color:var(--mut);font-size:.94rem}
.mini{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:18px;text-align:center}
.mini .n{font-size:1.4rem;font-weight:900;color:var(--brand)}
.mini span{font-size:.82rem;color:var(--mut)}
.split{display:grid;grid-template-columns:1.1fr .9fr;gap:44px;align-items:start}
.panel{background:var(--card);border:1px solid var(--line);border-left:5px solid var(--brand);border-radius:12px;padding:24px}
.ph-line{padding:13px 0;border-bottom:1px dashed var(--line);font-size:.93rem}
.ph-line:last-child{border-bottom:0}
.ph-line b{display:block;color:var(--dark);margin-bottom:2px}
.note{background:#fdf1e6;border-left:4px solid var(--brand);padding:15px 20px;border-radius:8px;color:#7c5a3c;font-size:.92rem;margin-top:24px}
.chips{display:flex;gap:10px;flex-wrap:wrap;margin:16px 0}
.chips span{background:#fff;border:1px solid var(--line);padding:6px 14px;border-radius:999px;color:var(--brand);font-weight:600;font-size:.88rem}
.narrow{max-width:840px!important}

.phead{padding:52px 0 28px;border-bottom:1px solid var(--line);background:#fff}
.phead h1{font-size:clamp(1.8rem,4.2vw,2.8rem);color:var(--dark);font-weight:900;line-height:1.2}
.lede{margin-top:14px;max-width:700px;color:var(--mut);font-size:1.03rem}
.crumb{font-size:.86rem;color:var(--mut);margin-bottom:16px}
.crumb a{color:var(--brand);font-weight:600}

.cta-card{background:linear-gradient(120deg,#2b2118,#7a4b28);color:#fff;border-radius:18px;padding:42px 38px;text-align:center}
.cta-card h2{color:#fff;font-size:1.5rem;font-weight:900}
.cta-card p{color:#f0e4da;margin:10px 0 22px}
.cta-card .btn{background:var(--brand2);color:#2b2118}

table.tb{width:100%;border-collapse:collapse;font-size:.92rem;background:#fff;border:1px solid var(--line);border-radius:10px;overflow:hidden}
.tb th,.tb td{padding:12px 15px;border-bottom:1px solid var(--line);text-align:left}
.tb th{background:var(--dark);color:#fff;font-weight:700}
.tb tr:last-child td{border-bottom:0}

.faqwrap{display:flex;flex-direction:column;gap:12px}
.faq{background:#fff;border:1px solid var(--line);border-radius:10px;overflow:hidden}
.faq summary{padding:18px 22px;cursor:pointer;font-weight:700;color:var(--dark);list-style:none;display:flex;justify-content:space-between;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:1.2rem;color:var(--brand);font-weight:800}
.faq[open] summary::after{content:"–"}
.faq .a{padding:4px 22px 16px;color:var(--mut);font-size:.95rem}

footer.site{border-top:1px solid var(--line);margin-top:56px;padding:42px 0 34px;color:var(--mut);font-size:.88rem;background:#fff}
.ft{display:flex;justify-content:space-between;gap:30px;flex-wrap:wrap}
.ft nav{display:flex;gap:16px;flex-wrap:wrap}
.ft nav a:hover{color:var(--brand)}

@media(max-width:860px){
  .g3{grid-template-columns:1fr}
  .g2{grid-template-columns:1fr}
  .g4{grid-template-columns:1fr 1fr}
  .split{grid-template-columns:1fr}
  .hero .wrap{grid-template-columns:1fr}
  .nav-toggle{display:block}
  nav.main{position:fixed;top:70px;left:0;right:0;background:#fff;flex-direction:column;align-items:stretch;padding:16px 20px;gap:10px;border-bottom:1px solid var(--line);display:none}
  nav.main.open{display:flex}
  nav.main a{padding:10px 14px}
  .phead{padding:36px 0 20px}
  .hero{padding:46px 0 36px}
}