:root{
  --ink:#1d1a17;
  --ink-2:#4a443d;
  --paper:#f7f3ec;
  --paper-2:#fffdf9;
  --line:#e7ddcd;
  --vermilion:#b4231f;
  --vermilion-2:#d2493f;
  --gold:#c8a45c;
  --gold-2:#e3c486;
  --green:#2f7d4f;
  --sans:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Noto Sans SC",system-ui,sans-serif;
  --serif:"Songti SC","SimSun","Noto Serif SC",serif;
  --maxw:1120px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--sans);background:var(--paper);color:var(--ink);line-height:1.9;font-size:16px;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
body::before{content:"";position:fixed;inset:0;background-image:radial-gradient(rgba(0,0,0,.025) 1px,transparent 1px);background-size:22px 22px;pointer-events:none;z-index:0}
.wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 22px;position:relative;z-index:1}
a{color:var(--vermilion);text-decoration:none}
img{max-width:100%;display:block}
h1,h2,h3,h4{font-family:var(--serif);color:var(--ink);line-height:1.3;letter-spacing:.5px}
.hl{color:var(--vermilion);font-weight:700}
.tip{background:linear-gradient(180deg,#fffdf9,#fbf6ec);border:1px solid var(--line);border-left:4px solid var(--gold);border-radius:10px;padding:14px 18px;color:var(--ink-2);font-size:15px}
.tip b{color:var(--ink)}

/* 顶栏 */
.topbar{background:linear-gradient(90deg,#241c14,#3a2a18);color:#f3e7cf;font-size:13.5px}
.topbar .wrap{display:flex;align-items:center;justify-content:space-between;padding:8px 22px}
.topbar .t-tel{font-weight:700;color:var(--gold-2);letter-spacing:.5px}
.topbar .t-cta{background:linear-gradient(90deg,var(--gold),var(--gold-2));color:#2a1d0c;padding:4px 14px;border-radius:20px;font-weight:700}
.topbar a{color:#f3e7cf}

/* 导航 */
.site{position:sticky;top:0;z-index:50;background:rgba(247,243,236,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.site .wrap{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;flex-direction:column;line-height:1.15}
.brand b{font-family:var(--serif);font-size:19px;color:var(--ink)}
.brand span{font-size:11.5px;color:var(--ink-2);letter-spacing:1px}
.navt{display:none}
.navb{display:none}
.nav{display:flex;gap:4px;flex-wrap:wrap}
.nav a{padding:8px 12px;color:var(--ink-2);font-size:14.5px;border-radius:8px;transition:.2s}
.nav a:hover{color:var(--vermilion);background:#fff}
.nav a.on{color:#fff;background:linear-gradient(90deg,var(--vermilion),var(--vermilion-2))}
.menu-btn{display:none}

/* Hero */
.hero{position:relative;color:#fff;background:linear-gradient(120deg,rgba(20,15,10,.82),rgba(40,20,15,.55)),url("../assets/img/hero-index.png");background-size:cover;background-position:center;padding:74px 0 64px}
.hero h1{color:#fff;font-size:40px;margin:0 0 14px;text-shadow:0 3px 16px rgba(0,0,0,.5)}
.hero p{font-size:17px;color:#f6ecd9;max-width:640px}
.hero .badges{display:flex;flex-wrap:wrap;gap:10px;margin:22px 0 8px}
.hero .badges span{background:rgba(255,255,255,.12);border:1px solid rgba(227,196,134,.5);padding:7px 14px;border-radius:22px;font-size:14px;color:#fdf6e8}
.hero .acts{display:flex;gap:14px;margin-top:24px;flex-wrap:wrap}
.btn{display:inline-block;padding:13px 26px;border-radius:30px;font-weight:700;font-size:15.5px;transition:.2s}
.btn-p{background:linear-gradient(90deg,var(--vermilion),var(--vermilion-2));color:#fff;box-shadow:0 8px 22px rgba(180,35,31,.35)}
.btn-g{background:linear-gradient(90deg,var(--gold),var(--gold-2));color:#2a1d0c}
.btn:hover{transform:translateY(-2px)}

/* section */
.section{padding:58px 0}
.section.alt{background:linear-gradient(180deg,#fffdf9,#f7f3ec)}
.crumb{font-size:13px;color:var(--ink-2);margin-bottom:14px}
.crumb a{color:var(--ink-2)}
.section-head{text-align:center;margin-bottom:34px}
.section-head .eyebrow{color:var(--gold);font-size:12.5px;letter-spacing:3px;font-weight:700;margin:0 0 8px}
.section-head h2{font-size:28px;margin:0 0 10px;position:relative;display:inline-block}
.section-head h2::after{content:"";display:block;width:64px;height:3px;margin:12px auto 0;background:linear-gradient(90deg,var(--gold),var(--vermilion));border-radius:2px}
.section-head .lead{color:var(--ink-2);max-width:680px;margin:0 auto;font-size:15px}

/* 网格 */
.grid{display:grid;gap:20px}
.c2{grid-template-columns:repeat(2,1fr)}
.c3{grid-template-columns:repeat(3,1fr)}
.c4{grid-template-columns:repeat(4,1fr)}

/* 卡片 */
.card{background:var(--paper-2);border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:.25s;box-shadow:0 2px 10px rgba(60,40,20,.04)}
.card:hover{transform:translateY(-4px);box-shadow:0 14px 30px rgba(60,40,20,.12);border-color:var(--gold-2)}
.card .ci{height:150px;background-size:cover;background-position:center}
.card .cb{padding:16px 18px}
.card .cb h3{font-size:18px;margin:0 0 8px}
.card .cb h3 small{display:block;font-family:var(--sans);font-size:12px;color:var(--gold);letter-spacing:1px;margin-top:3px}
.card .cb p{font-size:14px;color:var(--ink-2);margin:0}
.card .cb .more{display:inline-block;margin-top:10px;color:var(--vermilion);font-weight:700;font-size:14px}

/* 列表项 */
.li{display:flex;gap:14px;padding:14px 0;border-bottom:1px dashed var(--line)}
.li:last-child{border-bottom:0}
.li .ic{flex:0 0 44px;height:44px;border-radius:10px;background:linear-gradient(135deg,#fff3df,#f6e3c4);color:var(--vermilion);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:18px}
.li .tx h4{margin:0 0 4px;font-size:16.5px;font-family:var(--sans)}
.li .tx p{margin:0;font-size:14px;color:var(--ink-2)}

/* 数据卡 */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin:10px 0}
.stat{background:var(--paper-2);border:1px solid var(--line);border-radius:12px;padding:18px;text-align:center;transition:.2s}
.stat:hover{border-color:var(--gold-2);transform:translateY(-3px)}
.stat b{font-family:var(--serif);font-size:30px;color:var(--vermilion);display:block}
.stat span{color:var(--ink-2);font-size:13.5px;margin-top:6px;display:block}

/* 表格 */
.tbl{overflow-x:auto;border:1px solid var(--line);border-radius:14px;background:var(--paper-2)}
table{width:100%;border-collapse:collapse;font-size:14.5px;min-width:560px}
thead th{background:linear-gradient(90deg,var(--vermilion),var(--vermilion-2));color:#fff;text-align:left;padding:12px 14px;font-weight:600}
tbody td{padding:11px 14px;border-bottom:1px solid var(--line);color:var(--ink-2)}
tbody tr:nth-child(even){background:#fcf8f0}
tbody tr:hover{background:#fff6e7}

/* 步骤 */
.steps{counter-reset:s;display:grid;gap:14px}
.step{display:flex;gap:16px;align-items:flex-start;background:var(--paper-2);border:1px solid var(--line);border-radius:12px;padding:16px 18px}
.step .n{counter-increment:s;flex:0 0 38px;height:38px;border-radius:50%;background:linear-gradient(135deg,var(--gold),var(--vermilion));color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:17px}
.step .n::before{content:counter(s)}
.step h4{margin:0 0 4px;font-family:var(--sans);font-size:16px}
.step p{margin:0;font-size:14px;color:var(--ink-2)}

/* 两栏图文 */
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:30px;align-items:center}
.two-col .ph{height:300px;border-radius:14px;background-size:cover;background-position:center;box-shadow:0 10px 26px rgba(60,40,20,.14)}
.two-col h3{font-size:23px;margin:0 0 12px}
.two-col p{color:var(--ink-2);margin:0 0 12px}

/* 引言金句 */
.quote{background:linear-gradient(135deg,#241c14,#3a241a);color:#f3e7cf;border-radius:14px;padding:22px 26px;font-family:var(--serif);font-size:17px;line-height:1.8;border-left:4px solid var(--gold)}
.quote b{color:var(--gold-2)}

/* FAQ */
.faq-list{display:grid;gap:12px}
.faq{border:1px solid var(--line);border-radius:12px;background:var(--paper-2);overflow:hidden}
.faq summary{cursor:pointer;padding:15px 18px;font-weight:700;font-size:15.5px;list-style:none;display:flex;justify-content:space-between;align-items:center;color:var(--ink)}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--gold);font-size:22px;font-weight:700;transition:.2s}
.faq[open] summary::after{content:"\2212";color:var(--vermilion)}
.faq[open] summary{border-bottom:1px solid var(--line)}
.faq .fa{padding:4px 18px 16px;color:var(--ink-2);font-size:14.5px}
.faq .fa b{color:var(--vermilion)}

/* 相关搜索 */
.relsearch{display:flex;flex-wrap:wrap;gap:11px;justify-content:center}
.rel{display:inline-block;padding:9px 16px;border:1px solid var(--gold-2);background:#fffdf9;color:var(--ink);border-radius:24px;font-size:14px;transition:.2s}
.rel:hover{border-color:var(--vermilion);color:#fff;background:linear-gradient(90deg,var(--vermilion),var(--vermilion-2));transform:translateY(-2px)}
.rel b{color:var(--vermilion)}
.rel:hover b{color:#fff}

/* CTA */
.cta-band{background:linear-gradient(120deg,#241c14,#3a241a);color:#f3e7cf;border-radius:16px;padding:34px 32px;display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap;margin:8px 0}
.cta-band h3{color:#fff;margin:0 0 6px;font-size:23px}
.cta-band p{margin:0;color:#e7d8bd;font-size:15px}
.cta-band .btn-g{white-space:nowrap}

/* 页脚 */
.site-footer{background:#1d1a17;color:#cdbfa6;padding:42px 0 26px;margin-top:10px;font-size:14px}
.site-footer .wrap{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:30px}
.site-footer h4{color:#f3e7cf;font-size:16px;margin:0 0 14px;font-family:var(--sans)}
.site-footer a{color:#cdbfa6}
.site-footer a:hover{color:var(--gold-2)}
.site-footer .fb{font-size:13px;color:#9c8f78;border-top:1px solid #34302a;margin-top:24px;padding-top:16px;grid-column:1/-1;line-height:1.8}
.site-footer .fb a{color:#cdbfa6}

/* FAQ 分类问题列表 + 行前清单 */
.ql{list-style:none;padding:0;margin:10px 0 0}
.ql li{padding:7px 0;border-bottom:1px dashed var(--line);font-size:14.5px}
.ql li:last-child{border-bottom:0}
.ql li a{color:var(--ink);text-decoration:none}
.ql li a:hover{color:var(--vermilion);text-decoration:underline}

.checklist{list-style:none;padding:0;margin:14px 0;display:grid;grid-template-columns:1fr 1fr;gap:6px 28px}
.checklist li{padding:8px 0 8px 30px;position:relative;font-size:14.5px;color:var(--ink);line-height:1.7}
.checklist li::before{content:"✓";position:absolute;left:0;top:9px;width:20px;height:20px;border-radius:50%;background:linear-gradient(135deg,var(--vermilion),var(--gold-2));color:#fff;font-size:12px;display:flex;align-items:center;justify-content:center;font-weight:700}

/* 响应式 */
@media(max-width:920px){
  .nav{display:none}
  .menu-btn{display:inline-block;font-size:22px;background:none;border:0;color:var(--ink);cursor:pointer}
  .navt:checked ~ .nav{display:flex;position:absolute;top:64px;left:0;right:0;background:var(--paper-2);flex-direction:column;padding:10px 16px;border-bottom:1px solid var(--line);box-shadow:0 12px 24px rgba(0,0,0,.1)}
  .navt:checked ~ .nav a{padding:12px 10px}
  .c3,.c4{grid-template-columns:repeat(2,1fr)}
  .stats{grid-template-columns:repeat(2,1fr)}
  .two-col{grid-template-columns:1fr}
  .two-col .ph{height:220px}
  .hero h1{font-size:30px}
  .site-footer .wrap{grid-template-columns:1fr}
  .checklist{grid-template-columns:1fr}
}
@media(max-width:560px){
  .c2,.c3,.c4{grid-template-columns:1fr}
  .section{padding:44px 0}
  .hero{padding:54px 0 46px}
  .cta-band{padding:24px 20px}
  .section-head h2{font-size:23px}
}