:root{
  --bg:#faf6f0; --card:#fffdf9; --ink:#302a20; --ink2:#6f6553;
  --main:#c96f2b; --main-d:#a85818; --line:#e7ddcd; --ok:#3d7a56;
  --dark:#2b2620;
  --w:760px; --ww:1120px;
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC","STSong","SimSun",serif;
  --shadow:0 18px 44px rgba(80,60,30,.10);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--bg); color:var(--ink);
  font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",sans-serif;
  font-size:18px; line-height:1.8; -webkit-font-smoothing:antialiased;
}
a{color:var(--main-d); text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:var(--w); margin:0 auto; padding:0 20px}
.wrap-wide{max-width:var(--ww); margin:0 auto; padding:0 24px}

/* ===== 顶栏：右对齐导航 + 胶囊 CTA（对齐 Cubox/FamilyAlbum 模式） ===== */
header.site{
  position:sticky; top:0; z-index:20; background:rgba(250,246,240,.9);
  backdrop-filter:blur(10px); -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
header.site .wrap-wide{display:flex; align-items:center; justify-content:space-between; height:64px; gap:16px}
.brand{display:flex; align-items:center; gap:9px; font-weight:800; font-size:20px; color:var(--ink)}
.brand img{width:27px;height:27px}
nav.top{display:flex; align-items:center; gap:24px; font-size:15.5px}
nav.top a{color:var(--ink2); font-weight:500}
nav.top a:hover{color:var(--ink); text-decoration:none}
nav.top .nav-cta{
  background:var(--dark); color:#fff; font-weight:700; padding:9px 18px;
  border-radius:999px; font-size:15px;
}
nav.top .nav-cta:hover{background:#000; color:#fff}
.menu-btn{
  display:none; background:none; border:1.5px solid var(--line); border-radius:10px;
  width:42px; height:42px; cursor:pointer; position:relative;
}
.menu-btn i,.menu-btn i::before,.menu-btn i::after{
  content:""; position:absolute; left:10px; right:10px; height:2px; background:var(--ink); border-radius:2px;
}
.menu-btn i{top:50%; margin-top:-1px}
.menu-btn i::before{top:-7px} .menu-btn i::after{top:7px}
@media(max-width:820px){
  .menu-btn{display:block}
  nav.top{
    display:none; position:absolute; top:64px; left:12px; right:12px;
    flex-direction:column; align-items:stretch; gap:0; text-align:left;
    background:var(--card); border:1px solid var(--line); border-radius:16px;
    box-shadow:var(--shadow); padding:8px; overflow:hidden;
  }
  nav.top.open{display:flex}
  nav.top a{padding:13px 14px; border-radius:10px; font-size:16.5px}
  nav.top a:hover{background:#f6efe3}
  nav.top .nav-cta{margin:8px 6px 4px; text-align:center; padding:12px}
}
main{display:block}

section{padding:64px 0; border-bottom:1px solid var(--line)}
section:last-of-type{border-bottom:none}
h1,h2{font-family:var(--serif); font-weight:900; letter-spacing:-.5px}
h1{font-size:42px; line-height:1.3}
h2{font-size:30px; line-height:1.4; margin-bottom:8px}
h3{font-size:19px; margin-bottom:4px}
p{color:var(--ink); margin-top:10px}
.lead{font-size:19px; color:var(--ink2)}
.kicker{font-size:14px; letter-spacing:2px; color:var(--main-d); font-weight:700; margin-bottom:12px}
@media(max-width:820px){ h1{font-size:31px} h2{font-size:24px} body{font-size:17px} section{padding:46px 0} }

/* ===== Hero：左文右图 ===== */
.hero{padding:72px 0 60px}
.hero-grid{display:grid; grid-template-columns:1.05fr .95fr; gap:52px; align-items:center}
@media(max-width:920px){ .hero-grid{grid-template-columns:1fr; gap:36px} }
.hero .cta{display:flex; gap:12px; flex-wrap:wrap; margin-top:28px}
.btn{
  display:inline-block; padding:14px 26px; border-radius:999px; font-weight:700;
  background:var(--dark); color:#fff; font-size:17px; border:none;
  transition:transform .15s ease, background .15s ease;
}
.btn:hover{background:#000; text-decoration:none; transform:translateY(-1px)}
.btn.ghost{background:transparent; color:var(--ink); border:1.5px solid var(--line)}
.btn.ghost:hover{background:#fff; transform:translateY(-1px)}
.tagline-note{font-size:14px; color:var(--ink2); margin-top:12px}

.grid{display:grid; gap:14px; margin-top:22px}
.g2{grid-template-columns:1fr 1fr}
.g3{grid-template-columns:repeat(3,1fr)}
@media(max-width:700px){ .g2,.g3{grid-template-columns:1fr} }

.card{
  background:var(--card); border:1px solid var(--line); border-radius:18px; padding:22px;
  transition:transform .18s ease, box-shadow .18s ease;
}
.card:hover{transform:translateY(-3px); box-shadow:var(--shadow)}
.card .n{display:inline-flex; align-items:center; justify-content:center; width:30px; height:30px; border-radius:50%;
  background:#fdf0e2; color:var(--main-d); font-weight:800; font-size:15px; margin-bottom:8px}
.card p{color:var(--ink2); font-size:16px}

.steps{counter-reset:s; margin-top:22px}
.step{display:flex; gap:16px; padding:16px 0; border-bottom:1px dashed var(--line)}
.step:last-child{border-bottom:none}
.step .num{flex:0 0 34px; height:34px; border-radius:50%; background:var(--dark); color:#fff;
  display:flex; align-items:center; justify-content:center; font-weight:800; font-size:16px}
.step .t{font-weight:700}
.step .d{color:var(--ink2); font-size:16px}

/* 界面示意（纯 CSS，无截图依赖） */
.mock{background:#fff; border:1px solid var(--line); border-radius:20px; padding:14px; box-shadow:var(--shadow)}
.mock .bar{display:flex; gap:6px; margin-bottom:10px}
.mock .bar i{width:8px;height:8px;border-radius:50%;background:#e6dbc9;display:block}
.mock .mtitle{font-size:13px;color:#9a8d78;margin-bottom:8px;letter-spacing:1px}
.mock .row{display:flex; gap:10px; align-items:center; padding:9px 6px; border-bottom:1px solid #f2ebdf}
.mock .row:last-child{border-bottom:none}
.mock .th{width:44px;height:44px;border-radius:9px;flex:0 0 44px;background:linear-gradient(135deg,#f6d7a8,#e8b37a)}
.mock .th.b{background:linear-gradient(135deg,#bcd7e6,#8fb6cc)}
.mock .th.c{background:linear-gradient(135deg,#c7dfbf,#9dc293)}
.mock .txt{font-size:14px;line-height:1.5}
.mock .sub{font-size:12px;color:#9a8d78}
.mock .badge{font-size:11px;color:#a85818;background:#fdf0e2;border-radius:8px;padding:1px 7px}
.mock-cap{font-size:13px; color:var(--ink2); text-align:center; margin-top:12px}

ul.plain{list-style:none; margin-top:14px}
ul.plain li{padding:10px 0 10px 30px; position:relative; border-bottom:1px solid var(--line); font-size:16.5px}
ul.plain li:last-child{border-bottom:none}
ul.plain li::before{content:"✓"; position:absolute; left:4px; top:9px; color:var(--ok); font-weight:800}
ul.risk li::before{content:"—"; color:var(--main-d)}

.pricing{display:grid; grid-template-columns:1fr 1fr; gap:14px; margin-top:22px}
@media(max-width:700px){ .pricing{grid-template-columns:1fr} }
.plan{background:var(--card); border:1.5px solid var(--line); border-radius:18px; padding:24px}
.plan.hot{border-color:var(--main); background:#fffaf3}
.plan .price{font-size:36px; font-weight:800; color:var(--main-d); margin:6px 0 2px}
.plan .price small{font-size:15px; color:var(--ink2); font-weight:600}
.plan ul{list-style:none; margin-top:12px}
.plan li{font-size:15.5px; color:var(--ink2); padding:5px 0 5px 24px; position:relative}
.plan li::before{content:"·"; position:absolute; left:8px; color:var(--main)}

details.faq{border-bottom:1px solid var(--line); padding:16px 0}
details.faq summary{cursor:pointer; font-weight:700; font-size:18px; list-style:none}
details.faq summary::-webkit-details-marker{display:none}
details.faq summary::before{content:"＋"; color:var(--main-d); margin-right:10px; font-weight:800}
details.faq[open] summary::before{content:"－"}
details.faq p{color:var(--ink2); font-size:16.5px}

.callout{background:#fff8ef; border:1px solid #f0dcc0; border-radius:14px; padding:18px; margin-top:18px}
.callout p{color:#6b5335; font-size:16px}

/* ===== 页脚：品牌块 + 三栏分组 + 法务底栏 ===== */
footer.site{background:#221d16; color:#b7ab99; padding:56px 0 34px; font-size:15px}
footer.site a{color:#cfc4b2}
footer.site a:hover{color:#fff; text-decoration:none}
.f-grid{display:grid; grid-template-columns:1.6fr 1fr 1fr 1.2fr; gap:36px}
@media(max-width:820px){ .f-grid{grid-template-columns:1fr 1fr; gap:28px} .f-brand{grid-column:1/-1} }
.f-brand .brand{color:#fff; font-size:19px}
.f-brand .tagline{margin-top:12px; line-height:1.8; font-size:14.5px; color:#a1937e; max-width:300px}
.f-status{
  display:inline-block; margin-top:14px; font-size:12.5px; color:#e8c99b;
  border:1px solid #4a4032; border-radius:999px; padding:3px 12px;
}
.f-col h4{color:#8d8070; font-size:13px; font-weight:700; letter-spacing:2px; margin-bottom:12px}
.f-col ul{list-style:none}
.f-col li{margin-bottom:9px}
.f-cta .btn{background:#fff; color:var(--ink); font-size:15px; padding:11px 20px; margin-top:4px}
.f-cta .btn:hover{background:#f3ece1; transform:none}
.f-cta .mail{display:block; margin-top:14px; font-size:14.5px}
.f-bottom{
  border-top:1px solid #3a3227; margin-top:40px; padding-top:22px;
  display:flex; justify-content:space-between; gap:14px; flex-wrap:wrap;
  font-size:13px; color:#8d8070; line-height:1.9;
}
:focus-visible{outline:2.5px solid var(--main); outline-offset:3px}

/* ===== 文章 / 指南集群 ===== */
.article{max-width:800px}
.crumbs{font-size:13.5px; color:var(--ink2); display:flex; gap:8px; flex-wrap:wrap; margin-bottom:14px}
.crumbs a{color:var(--ink2)}
.crumbs b{color:var(--ink); font-weight:600}
.article h1{font-size:38px; margin-bottom:10px}
.a-meta{font-size:13.5px; color:#9a8d78; margin-top:2px}
.article .lead{margin-top:14px}
img.cover{
  width:100%; height:auto; display:block; margin:26px 0 0;
  border:1px solid var(--line); border-radius:18px; background:#f7efe2;
}
.article-body{margin-top:8px}
.article-body h2{
  font-size:26px; margin-top:40px; scroll-margin-top:88px;
  padding-top:6px;
}
.article-body h3{font-size:19.5px; margin-top:26px}
.article-body p{margin-top:14px; font-size:17.5px; line-height:1.85}
.article-body b{color:var(--ink)}
.article-body ul.plain{margin-top:16px}
.article-body ul.plain li{font-size:16.5px; line-height:1.8}
.article-body ol.num{margin-top:16px; padding-left:22px}
.article-body ol.num li{font-size:16.5px; padding:6px 0; line-height:1.8}
.article-body figure{margin:28px 0}
.article-body figure img{width:100%; height:auto; display:block; border-radius:14px; border:1px solid var(--line)}
.article-body figcaption{font-size:13.5px; color:var(--ink2); text-align:center; margin-top:10px; line-height:1.7}
.article-body code{background:#f3ead9; border-radius:5px; padding:1px 5px; font-size:.92em}

.toc{
  background:#fff8ef; border:1px solid #f0dcc0; border-radius:14px;
  padding:16px 20px; margin:26px 0 6px; font-size:15px;
}
.toc b{display:block; font-size:13px; letter-spacing:2px; color:var(--main-d); margin-bottom:8px}
.toc ol{margin:0; padding-left:18px}
.toc li{margin:4px 0}
.toc a{color:var(--ink2)}
.toc a:hover{color:var(--main-d)}

.tbl{overflow-x:auto; margin:24px 0; border:1px solid var(--line); border-radius:14px}
.tbl table{width:100%; border-collapse:collapse; font-size:15.5px; min-width:460px}
.tbl th,.tbl td{padding:11px 14px; text-align:left; border-bottom:1px solid var(--line); vertical-align:top}
.tbl thead th{background:#f6efe3; font-weight:700; white-space:nowrap}
.tbl tbody tr:last-child td{border-bottom:none}

/* 文章卡片网格 */
.a-grid{display:grid; grid-template-columns:repeat(auto-fill,minmax(250px,1fr)); gap:18px; margin-top:22px}
.a-card{
  display:block; background:var(--card); border:1px solid var(--line); border-radius:18px;
  overflow:hidden; color:inherit; transition:transform .18s ease, box-shadow .18s ease;
}
.a-card:hover{text-decoration:none; transform:translateY(-3px); box-shadow:var(--shadow)}
.a-card img{display:block; width:100%; aspect-ratio:16/9; object-fit:cover; background:#f7efe2}
.a-card .a-body{padding:16px 18px 18px}
.a-card .a-cat{font-size:12px; letter-spacing:1.5px; color:var(--main-d); font-weight:700}
.a-card h3{font-size:17.5px; line-height:1.45; margin:6px 0 6px}
.a-card p{font-size:14.5px; line-height:1.65; color:var(--ink2); margin-top:0}
.a-card .a-meta{font-size:12.5px; color:#9a8d78; margin-top:10px}
.cluster-list{margin-top:52px; border-top:1px solid var(--line); padding-top:34px}
.cluster-list h2{font-size:24px}
.related{margin-top:52px; border-top:1px solid var(--line); padding-top:32px}
.related h2{font-size:22px}
.cta-box{margin-top:34px}
.back{margin-top:28px; font-size:15.5px}
@media(max-width:820px){
  .article h1{font-size:28px}
  .article-body h2{font-size:22px; margin-top:32px}
  .article-body p{font-size:17px}
  .a-grid{grid-template-columns:1fr}
}